10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 10-Q

(Mark One)

x Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the quarterly period ended September 27, 2015

or

¨ Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the transition period from                      to                     

Commission File Number 001-35269

INVENSENSE, INC.

(Exact name of registrant as specified in its charter)

Delaware	01-0789977
(State or other jurisdiction of Incorporation or organization)	(I.R.S. Employer Identification No.)

1745 Technology Drive, Suite 200, San Jose, CA 95110

(Address of principal executive offices and zip code)

(408) 501-2200

(Registrant’s telephone number, including area code)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  x    No  ¨

Indicate by check mark whether the registrant submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  x    No  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act:

Large accelerated filer	x	Accelerated filer	¨
Non-accelerated filer	¨  (Do not check if a smaller reporting company)	Smaller reporting company	¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨    No  x

Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date.

Class	Shares Outstanding at October 16, 2015
Common Stock, $0.001 par value	92,043,000

INVENSENSE, INC.

TABLE OF CONTENTS

		Page
PART I. FINANCIAL INFORMATION
Item 1.	Financial Statements (Unaudited)		3
	Condensed Consolidated Balance Sheets as of September 27, 2015 and March 29, 2015		3
	Condensed Consolidated Statements of Operations for the three and six months ended September  27, 2015 and September 28, 2014		4
	Condensed Consolidated Statements of Comprehensive Income (Loss) for the three and six months ended September 27, 2015 and September 28, 2014		5
	Condensed Consolidated Statements of Cash Flows for the six months ended September 27, 2015 and September  28, 2014		6
	Notes to Condensed Consolidated Financial Statements		7
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations		29
Item 3.	Quantitative and Qualitative Disclosures About Market Risk		36
Item 4.	Controls and Procedures		37
PART II. OTHER INFORMATION
Item 1.	Legal Proceedings		38
Item 1A.	Risk Factors		38
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds		38
Item 6.	Exhibits		38
SIGNATURES			39

2

PART I. FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

INVENSENSE, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(Unaudited)

(In thousands, except par value)

	September 27, 2015			March 29, 2015
Assets
Current assets:
Cash and cash equivalents	$	70,162		$	85,637
Short-term investments		203,221			129,919
Accounts receivable		50,434			44,522
Inventories		61,684			75,105
Prepaid expenses and other current assets		13,143			14,950
Total current assets		398,644			350,133
Property and equipment, net		39,091			41,849
Intangible assets, net		41,005			45,508
Goodwill		139,175			139,175
Other assets		14,424			9,019
Total assets	$	632,339		$	585,684
Liabilities and Stockholders’ Equity
Current liabilities:
Accounts payable	$	34,951		$	23,130
Accrued liabilities		43,768			31,991
Total current liabilities		78,719			55,121
Long-term debt		146,767			142,810
Other long-term liabilities		27,197			28,252
Total liabilities		252,683			226,183
Commitments and contingencies (Note 4)
Stockholders’ equity:
Preferred stock:
Preferred stock, $0.001 par value — 20,000 shares authorized, no shares issued and outstanding at September 27, 2015 and March 29, 2015		—			—
Common stock:
Common stock, $0.001 par value — 750,000 shares authorized, 92,012 shares issued and outstanding at September 27, 2015; 90,894 shares issued and outstanding at March 29, 2015;		283,084			262,677
Accumulated other comprehensive (loss)		(102	)		(4	)
Retained earnings		96,674			96,828
Total stockholders’ equity		379,656			359,501
Total liabilities and stockholders’ equity	$	632,339		$	585,684

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

3

INVENSENSE, INC.

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(Unaudited)

(In thousands, except per share amounts)

	Three Months Ended						Six Months Ended
	September 27, 2015			September 28, 2014			September 27, 2015			September 28, 2014
Net revenue	$	112,545		$	90,195		$	218,841		$	156,876
Costs of revenue		65,974			58,854			127,439			94,359
Gross profit		46,571			31,341			91,402			62,517
Operating expenses:
Research and development		24,991			21,593			45,246			41,001
Selling, general and administrative		15,186			14,592			31,010			28,510
Legal settlement accrual		—			—			11,708			—
Total operating expenses		40,177			36,185			87,964			69,511
Income (loss) from operations		6,394			(4,844	)		3,438			(6,994	)
Interest (expense)		(2,765	)		(2,620	)		(5,489	)		(5,204	)
Other income, net		104			1,199			165			1,380
Income (loss) before income taxes		3,733			(6,265	)		(1,886	)		(10,818	)
Income tax provision (benefit)		(1,960	)		603			(1,732	)		882
Net income (loss)	$	5,693		$	(6,868	)	$	(154	)	$	(11,700	)
Net income (loss) per share of common stock:
Basic	$	0.06		$	(0.08	)	$	(0.00	)	$	(0.13	)
Diluted	$	0.06		$	(0.08	)	$	(0.00	)	$	(0.13	)
Weighted average shares outstanding used in computing net income (loss) per share:
Basic		91,574			88,997			91,325			88,650
Diluted		92,569			88,997			91,325			88,650

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

4

INVENSENSE, INC.

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)

(Unaudited)

(In thousands)

	Three Months Ended						Six Months Ended
	September 27, 2015			September 28, 2014			September 27, 2015			September 28, 2014
Net income (loss)	$	5,693		$	(6,868	)	$	(154	)	$	(11,700	)
Other comprehensive income (loss):
Unrealized gain (loss) on available-for-sale securities, net of tax		(59	)		(52	)		(98	)		39
Comprehensive income (loss)	$	5,634		$	(6,920	)	$	(252	)	$	(11,661	)

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

5

INVENSENSE, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited)

(In thousands)

	Six Months Ended
	September 27, 2015			September 28, 2014
Cash flows from operating activities:
Net loss	$	(154	)	$	(11,700	)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation		6,245			4,310
Amortization of intangible assets		4,503			2,895
Non cash interest expense		3,958			3,672
Write-off of in-process research and development		—			770
Loss on disposal of property and equipment		—			326
Gain on equity investment		—			(890	)
Stock-based compensation expense		17,683			14,637
Contingent consideration adjustment		(5,307	)		—
Deferred income tax assets		(3,498	)		25
Tax effect of employee benefit plan		(758	)		—
Changes in operating assets and liabilities:
Accounts receivable		(5,912	)		(27,298	)
Inventories		13,421			(1,978	)
Prepaid expenses and other assets		2,113			54
Other assets		(1,833	)		(1,100	)
Accounts payable		12,444			5,398
Accrued liabilities		15,872			8,130
Net cash provided by (used in) operating activities	$	58,777		$	(2,749	)
Cash flows from investing activities:
Acquisitions, net of cash acquired		—			(71,446	)
Purchase of property and equipment		(3,953	)		(17,624	)
Sales and maturities of available-for-sale investments		71,843			98,528
Purchase of available-for-sale investments		(145,732	)		—
Net cash provided by (used in) investing activities		(77,842	)		9,458
Cash flows from financing activities:
Proceeds from the issuance of common stock		3,590			5,690
Net cash provided by financing activities		3,590			5,690
Net increase (decrease) in cash and cash equivalents		(15,475	)		12,399
Cash and cash equivalents:
Beginning of period		85,637			26,025
End of period	$	70,162		$	38,424
Supplemental disclosures of cash flow information:
Cash paid for interest	$	1,531		$	1,429
Cash paid (received) for income taxes	$	294		$	(186	)
Noncash investing and financing activities:
Unpaid purchases of property and equipment	$	604		$	5,681
Unrealized gain (loss) from available-for-sale investments	$	(157	)	$	2
Proceeds receivable from the exercise of stock options	$	—		$	81

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

6

INVENSENSE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

1. Organization and Summary of Significant Accounting Policies

Business

InvenSense, Inc. (the “Company”) was incorporated in California in June 2003 and reincorporated in Delaware in January 2004. The Company designs, develops, markets and sells sensor systems on a chip, including accelerometers, gyroscopes and microphones for the mobile, wearable, smart home, gaming, industrial, and automotive market segments.

These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and the notes thereto for the fiscal year ended March 29, 2015 included in the Company’s Annual Report on Form 10-K filed on May 28, 2015 with the Securities and Exchange Commission (“SEC”). No material changes have been made to the Company’s significant accounting policies since the Company’s Annual Report on Form 10-K for the fiscal year ended March 29, 2015.

Certain Significant Business Risks and Uncertainties

The Company participates in the high-technology industry and believes that adverse changes in any of the following areas could have a material effect on the Company’s future financial position, results of operations, or cash flows: reliance on a limited number of primary customers to support the Company’s revenue generating activities; advances and trends in new technologies and industry standards; market acceptance of the Company’s products; development of sales channels; strategic relationships, including key component suppliers; litigation or claims against the Company based on intellectual property, patent, product, regulatory, or other factors; and the Company’s ability to attract and retain employees necessary to support its growth.

Basis of Consolidation

The consolidated financial statements have been prepared in conformity with U.S. generally accepted accounting principles (“GAAP”), and include our accounts and the accounts of our wholly-owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. The functional currency of each of the Company’s subsidiaries is the U.S. dollar. Foreign currency gains or losses are recorded as other income (expense), net, in the condensed consolidated statements of operations.

Fiscal Year

The Company’s fiscal year is a 52 or 53 week period ending on the Sunday closest to March 31. The Company’s most recent fiscal year (“Fiscal 2015”) ended on March 29, 2015 (“March 2015”). The second fiscal quarter in each of the two most recent fiscal years ended on September 27, 2015 (“three months ended September 27, 2015”) and September 28, 2014 (“three months ended September 28, 2014”), respectively, and each quarter period included 13 weeks. Fiscal year 2016 is a 53-week fiscal year. The extra week is included in our fourth fiscal quarter ended April 3, 2016.

Basis of Presentation

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with GAAP and applicable rules and regulations of the SEC regarding interim financial reporting. Certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations.

The condensed consolidated balance sheet as of March 29, 2015, included herein was derived from the audited financial statements as of that date, but does not include all disclosures required by GAAP. The unaudited interim condensed consolidated financial statements, in the opinion of management, reflect all normal recurring adjustments necessary to present fairly the Company’s financial position, results of operations, comprehensive income (loss) and cash flows for the interim periods. The results of operations for the period ended September 27, 2015 is not necessarily indicative of the results to be expected for the fiscal year ending April 3, 2016 or for any future year or interim period.

7

INVENSENSE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Use of Estimates

The preparation of the Company’s Condensed Consolidated Financial Statements and notes thereto in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the Condensed Consolidated Financial Statements and notes thereto and the reported amounts of income and expenses during the reporting period. Significant estimates included in the Consolidated Financial Statements and notes thereto include income taxes, inventory valuation, stock-based compensation, goodwill, loss contingencies, warranty reserves, valuation of acquired assets and contingent consideration, and valuation of convertible senior notes, including the related convertible notes hedges and warrants. These estimates are based upon information available as of the date of the consolidated financial statements, and actual results could differ from those estimates.

Goodwill

Goodwill represents the excess of the purchase price over the fair value of the net tangible and identifiable intangible assets acquired in a business combination. In accordance with Accounting Standard Codification 350, the Company reviews goodwill for impairment at the reporting unit level on an annual basis or whenever events or changes in circumstances indicate the carrying value may not be recoverable. As the Company uses the market approach to assess impairment, its common stock price is an important component of the fair value calculation. The Company has determined that it has a single reporting unit for purposes of performing its goodwill impairment test. The Company performed its annual impairment test during the quarter ended December 28, 2014 and determined that its goodwill was not impaired.

Concentration of Credit Risk

The majority of the Company’s products are shipped through its distributors or contract manufacturers, which are the legal counter-party on the sale. When the Company references customers, sales and revenue in this report, the Company is referring to the manufacturers of consumer electronics devices that are the end customer for our products. However, any disclosure about the composition of the Company’s accounts receivable refers to the intermediary, which is the legal counter party in a particular contract. Some of the Company’s intermediaries may serve more than one of the Company’s customers. As a result, attempting to compare or correlate disclosures about our accounts receivable composition as of a particular date with the disclosures regarding revenues generated by our customers for the period ending on the same date can be difficult or misleading.

A distributor and a customer accounted for 49% and 20% of accounts receivable, respectively, at September 27, 2015. A distributor and a customer accounted for 38% and 26% of accounts receivable, respectively, at March 29, 2015.

For the three months ended September 27, 2015, one customer accounted for 34% of total net revenue and one customer accounted for 19% of total net revenue. For the six months ended September 27, 2015, one customer accounted for 36% of total net revenue and one customer accounted for 21% of total net revenue. For the three months ended September 28, 2014, one customer accounted for 29% of total net revenue and one customer accounted for 26% of total net revenue. For the six months ended September 28, 2014, one customer accounted for 30% of total net revenue, one customer accounted for 17% of total net revenue and the third customers accounted for 10% of total net revenue.

8

INVENSENSE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Warranty

The Company offers one year standard warranty to its products. In selective cases, the warranty period could be extended to multiple years. The Company’s accrual for anticipated warranty costs has increased primarily due to an increase in unit sales volume and a commensurate increase in the volume of product returned under the warranty agreements. The accrual also includes management’s judgment regarding anticipated rates of warranty claims and associated repair costs. The following table summarizes the activity related to product warranty liability during the six months ended September 27, 2015 and September 28, 2014:

	Six Months Ended
	September 27, 2015			September 28, 2014
	(in thousands)
Beginning balance	$	341		$	80
Provision for warranty		421			103
Adjustments related to changes in estimate		(204	)		(96	)
Less: actual warranty costs		(82	)		(15	)
Ending balance	$	476		$	72

Net Income (Loss) Per Share

Basic net income per share is computed by dividing net income (loss) by the weighted average number of shares outstanding during the period, which excludes dilutive unvested restricted stock. Diluted net income per share is computed by dividing net income (loss) by the weighted average number of shares outstanding, including unvested restricted stock, certain warrants to purchase common stock and potential dilutive shares from the dilutive effect of outstanding stock options using the treasury stock method. In periods in which the Company has reported a net loss, the common stock equivalents are excluded from the calculation of diluted net loss per share of common stock as their effect is antidilutive under the treasury stock method.

The following table presents the calculation of basic and diluted net loss per share:

	Three Months Ended					Six Months Ended
	September 27, 2015		September 28, 2014			September 27, 2015			September 28, 2014
	(in thousands, except per share data)
Numerator:
Basic and Diluted
Net income (loss)	$	5,693	$	(6,868	)	$	(154	)	$	(11,700	)
Denominator:
Basic shares:
Weighted-average shares used in computing basic net income (loss) per share		91,574		88,997			91,325			88,650
Diluted shares:
Weighted-average shares used in computing basic net income (loss) per share		91,574		88,997			91,325			88,650
Effect of potentially dilutive securities:
Stock options and unvested restricted stock		995		—			—			—
Common stock warrants		—		—			—			—
Weighted-average shares used in computing diluted net income (loss) per share		92,569		88,997			91,325			88,650
Net income (loss) per share
Basic	$	0.06	$	(0.08	)	$	(0.00	)	$	(0.13	)
Diluted	$	0.06	$	(0.08	)	$	(0.00	)	$	(0.13	)

9

INVENSENSE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

The following summarizes the potentially dilutive securities outstanding at the end of each period that were excluded from the computation of diluted net loss per share for the periods presented as their effect would have been antidilutive:

	Three Months Ended				Six Months Ended
	September 27, 2015		September 28, 2014		September 27, 2015		September 28, 2014
	(in thousands)
Employee stock options		7,382		8,665		9,059		8,635
Unvested restricted stock units		2,989		3,660		4,204		3,537
Total antidilutive securities		10,371		12,325		13,263		12,172

Segment Information

The Company operates in one operating segment by designing, developing, manufacturing and marketing sensor systems on a chip. The Chief Executive Officer has been identified as the Chief Operating Decision Maker as defined by Financial Accounting Standards Board’s ASC 280 “Segment Reporting”. Enterprise-wide information is provided in accordance with ASC 280. Geographical revenue information is based on the location of our customers’ head offices. Property and equipment information is based on the physical location of the assets at the end of each fiscal period.

Property and equipment by country were as follows:

Country	September 27, 2015		March 29, 2015
	(in thousands)
United States	$	9,542	$	9,442
Taiwan		27,915		31,334
Other		1,634		1,073
	$	39,091	$	41,849

Net revenue from unaffiliated customers by country was as follows:

	Three Months Ended				Six Months Ended
Region	September 27, 2015		September 28, 2014		September 27, 2015		September 28, 2014
	(in thousands)
United States	$	42,913	$	29,622	$	86,716	$	37,452
Korea		24,469		35,058		53,192		63,970
China		26,010		12,546		50,616		29,906
Japan		8,028		5,939		12,164		9,733
Taiwan		7,576		5,185		10,762		12,795
Rest of world		3,549		1,845		5,391		3,020
	$	112,545	$	90,195	$	218,841	$	156,876

Recent Accounting Pronouncements

On July 22, 2015, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2015-11, the FASB issued final guidance that simplifies the subsequent measurement of inventories by replacing today’s lower of cost or market test with a lower of cost and net realizable value test. The guidance applies only to inventories for which cost is determined by methods other than last-in first-out and the retail inventory method. Entities that use last-in, first-out or retail inventory method will continue to use existing impairment models. The guidance is effective for public business entities for fiscal years beginning after December 15, 2016, and interim periods within those fiscal years. The Company does not expect this guidance to have significant impact on its consolidated financial statements.

10

INVENSENSE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

On August 18, 2015, the FASB issued ASU No. 2015-15, the ASU states that the Securities and Exchange Commission (“SEC”) staff would not object to an entity deferring and presenting debt issuance costs as an asset and subsequently amortizing deferred debt issuance costs ratably over the term of the line-of-credit arrangement, regardless of whether there are outstanding borrowings under that line-of-credit arrangement. For public business entities, ASU 2015-15 is effective concurrent with adoption of ASU No. 2015-03 which is effective for financial statements issued for fiscal years beginning after December 15, 2015, and interim periods within those fiscal years. The FASB issued ASU 2015-03, Simplifying the Presentation of Debt Issuance Costs on April 7, 2015. ASU 2015-03 requires debt issuance costs to be presented in the balance sheet as a direct deduction from the carrying value of the associated debt liability, consistent with the presentation of a debt discount. The Company does not expect this guidance to have significant impact on its consolidated financial statements.

On September 25, 2015, the FASB issued ASU 2015-16, the new guidance eliminates the requirement that an acquirer in a business combination account for measurement-period adjustments retrospectively. An acquirer will recognize a measurement-period adjustment during the period in which it determines the amount of the adjustment. The guidance is effective for public business entities for fiscal years beginning after December 15, 2015, and interim periods within those fiscal years. The Company does not expect this guidance to have significant impact on its consolidated financial statements.

2. Cash Equivalents and Available-for-Sale Investments

At September 27, 2015, cash and cash equivalents totaled $70.2 million, of which $45.4 million was cash and $24.8 million was cash equivalents invested in money market funds. At September 27, 2015, $37.0 million of the cash and cash equivalents were held by our foreign subsidiaries. If these funds are needed for our operations in the United States, the Company would be required to accrue and pay U.S. taxes to repatriate these funds. However, the Company’s intent is to indefinitely reinvest these funds outside of the United States, and the Company’s current plans for the foreseeable future do not demonstrate a need to repatriate them to fund U.S. operations. Additionally, as of September 27, 2015, the Company had short-term available-for-sale investments of $203.2 million which are held in the US entity.

At March 29, 2015, cash and cash equivalents totaled $85.6 million, of which $61.6 million was cash and $24.0 million was cash equivalents. At March 29, 2015, $47.7 million of the cash and cash equivalents were held by our foreign subsidiaries. Additionally, as of March 29, 2015, the Company had short-term available-for-sale investments of $129.9 million which are held in the US entity.

The Company applies the provisions of ASC 820-10, “Fair Value Measurements”. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (i.e., the “exit price”) in an orderly transaction between market participants at the measurement date. As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or liability. ASC 820-10 requires disclosure that establishes a framework for measuring fair value and expands disclosure about fair value measurements. The standard describes a fair value hierarchy based on three levels of inputs that may be used to measure fair value. The inputs for the first two levels are considered observable and the last is unobservable and include the following:

Level 1—Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities;

Level 2—Quoted prices in markets that are not active, or inputs which are observable, either directly or indirectly, for substantially the full term of the asset or liability; or

Level 3—Unobservable inputs in which there is little or no market data, and as a result, prices or valuation techniques are employed that require inputs that are significant to the fair value measurement.

This hierarchy requires the Company to use observable market data, when available, and to minimize the use of unobservable inputs when determining fair value. On a recurring basis, the Company measures certain financial assets and liabilities at fair value. The fair values of our money market funds were derived from quoted market prices as active markets for these instruments exist. The Company chose not to elect the fair value option as prescribed by ASC 825-10-05 “Fair Value Option” for its financial assets and liabilities that had not been previously carried at fair value. Therefore, financial assets and liabilities not carried at fair value, such as accounts payable, are still reported at their carrying values.

11

INVENSENSE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Fair value measurements at each reporting date were as follows:

September 27, 2015:

Assets measured at fair value on a recurring basis were presented in the Company’s condensed consolidated balance sheet as of September 27, 2015.

	September 27, 2015 Balance		Quoted Prices in Active Markets for Identical Assets Level 1		Significant Other Observable Inputs Level 2		Significant Other Unobservable Inputs Level 3
	(in thousands)
Assets
Money Market Funds	$	24,753	$	24,753	$	—	$	—
Corporate Notes and Bonds		168,465		—		168,465		—
Commercial Paper		32,255		—		32,255		—
U.S. Agency Securities		2,501		—		2,501		—
Total investments	$	227,974	$	24,753	$	203,221	$	—
Liabilities
Contingent consideration	$	3,817	$	—	$	—	$	3,817
Assets
Cash equivalents	$	24,753	$	24,753	$	—	$	—
Short-term investments		203,221		—		203,221		—
Total investments	$	227,974	$	24,753	$	203,221	$	—
Liabilities
Accrued liabilities	$	3,817	$	—	$	—	$	3,817
Total contingent consideration	$	3,817	$	—	$	—	$	3,817

	September 27, 2015 Balance		Gross Unrealized Gain		Gross Unrealized Loss			September 27, 2015 Estimated FMV
Corporate Notes and Bonds	$	168,619	$	4	$	(158	)	$	168,465
Commercial Paper		32,260		1		(6	)		32,255
U.S. Agency Securities		2,500		1		—			2,501
Total Available-for-sale investments	$	203,379	$	6	$	(164	)	$	203,221
Money Market Funds									24,753
Total Aggregate Fair Value								$	227,974

The fair values of money market funds were derived from quoted market prices as active markets for these instruments exist. The fair values of corporate notes and bonds, commercial paper, municipal notes and bonds and U.S. Agency Securities were derived from non-binding market consensus prices that are corroborated by observable market data.

There were no transfers of assets measured at fair value between Level 1 and Level 2 during the three months ended September 27, 2015.

12

INVENSENSE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

March 29, 2015:

Assets measured at fair value on a recurring basis were presented in the Company’s consolidated balance sheet as of March 29, 2015.

	March 29, 2015 Balance		Quoted Prices in Active Markets for Identical Assets Level 1		Significant Other Observable Inputs Level 2		Significant Other Unobservable Inputs Level 3
	(in thousands)
Assets
Money Market Funds	$	22,023	$	22,023	$	—	$	—
Corporate Notes and Bonds		122,124		—		122,124		—
Commercial Paper		6,991		—		6,991		—
Municipal Notes and Bonds		302		—		302		—
U.S. Agency Securities		2,502		—		2,502		—
Total investments	$	153,942	$	22,023	$	131,919	$	—
Liabilities
Contingent consideration	$	9,124	$	—	$	—	$	9,124
Assets
Cash equivalents	$	24,023	$	24,023	$	—	$	—
Short-term investments		129,919		—		129,919		—
Long-term investments		—		—		—		—
Total investments	$	153,942	$	24,023	$	129,919	$	—
Liabilities
Accrued liabilities	$	6,364	$	—	$	—	$	6,364
Long-term liabilities		2,760		—		—		2,760
Total contingent consideration	$	9,124	$	—	$	—	$	9,124

	March 29, 2015 Amortized Cost		Gross Unrealized Gain		Gross Unrealized Loss			March 29, 2015 Estimated FMV
Corporate Notes and Bonds	$	122,131	$	22	$	(29	)	$	122,124
Commercial Paper		6,992		—		(1	)		6,991
Municipal Notes and Bonds		302		—		—			302
U.S. Agency Securities		2,500		2		—			2,502
Total Available-for-sale investments	$	131,925	$	24	$	(30	)	$	131,919
Money Market Funds									22,023
Total Aggregate Fair Value								$	153,942

The fair values of money market funds were derived from quoted market prices as active markets for these instruments exist. The fair values of corporate notes and bonds, commercial paper, and U.S. Agency Securities were derived from non-binding market consensus prices that are corroborated by observable market data.

There were no transfers of assets measured at fair value between Level 1 and Level 2 during fiscal 2015.

13

INVENSENSE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Level 3 financial liabilities:

The following table provides a summary of changes in fair value of the Company’s contingent consideration categorized as Level 3 for the six months ended September 27, 2015:

	Six Months Ended
	September 27, 2015
	(in thousands)
Beginning balance	$	9,124
Add: Contingent consideration in connection with acquisitions		—
Payments made on contingent liabilities		—
Change in fair value and other		(5,307	)
Ending balance	$	3,817

Contingent consideration on acquired businesses (See Note 8) was measured at fair value using Level 3 inputs as defined in the fair value hierarchy. The following table presents certain information about the significant unobservable inputs used in the fair value measurement for the contingent consideration measured at fair value on a recurring basis using significant unobservable inputs:

Description	Valuation Techniques	Significant Unobservable Inputs
Liabilities: Contingent consideration	Present value of a Probability Weighted Earn-out model using an appropriate discount rate.	Estimate of achieving the milestones.

An increase in the estimate of probability of meeting the milestones could result in a significantly higher estimated fair value of the contingent consideration liability. Alternatively, a decrease in the estimate of probability of meeting the milestones could result in a significantly lower estimated fair value of contingent consideration liability. The fair value of contingent consideration was derived from a probability weighted earn-out model of future contingent payments. The cash payments are expected to be made upon meeting the milestones (See Note 8). The initial valuation of the contingent consideration was based on a collaborative effort of the Company’s engineering and finance departments, and third party valuation experts. The estimate of meeting the milestones and discount rates will be reviewed quarterly and updated as and when necessary. Potential valuation adjustments will be made to adjust the contingent consideration payments. These adjustments will be recorded in the statements of operations.

During the six months ended September 27, 2015, the fair value of contingent consideration declined by $5.3 million. The decline in fair value was the result of a reduction in the probability of a design win milestone associated with the Movea, S.A., (“Movea”) acquisition from 50% to 0% and a reduction in the probability of a design win associated with the Trusted Positioning, Inc. (“TPI”) acquisition from 50% to 0%. The decline in fair value of the design win milestones for Movea and TPI was $4.0 million and $2.4 million, respectively, which were recorded as a credit to research and development expense. The earn-out payments for the Movea and TPI’s design win milestones were not made as these miles stones were not met and expired during the six months ended September 27, 2015. Offsetting this amount is an increase in the fair value of two TPI cloud application milestones as a result of an increase in the estimated probability of achievement of those milestones. The increase in the fair value of the cloud application milestones was $1.1 million which was recorded as a debit to research and development expense during the six months ended September 27, 2015.

3. Balance Sheet Details

Inventories

Inventories at September 27, 2015 and March 29, 2015 consist of the following:

	September 27, 2015		March 29, 2015
	(in thousands)
Work in process	$	23,941	$	49,146
Finished goods		37,743		25,959
Total inventories	$	61,684	$	75,105

14

INVENSENSE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets at September 27, 2015 and March 29, 2015 consist of the following:

	September 27, 2015		March 29, 2015
	(in thousands)
Deferred tax assets	$	5,099	$	5,127
Prepaid expenses		4,175		4,280
Income tax receivable		89		1,398
Other receivables		1,707		2,675
Other current assets		2,073		1,470
Total prepaid expenses and other current assets	$	13,143	$	14,950

Property and Equipment

Property and equipment at September 27, 2015 and March 29, 2015 consist of the following:

	September 27, 2015			March 29, 2015
	(in thousands)
Production and lab equipment	$	48,717		$	47,107
Computer equipment and software		7,328			6,044
Equipment under construction		2,664			2,820
Leasehold improvements and furniture and fixtures		8,122			7,163
Subtotal		66,831			63,134
Accumulated depreciation and amortization		(27,740	)		(21,285	)
Property and equipment—net	$	39,091		$	41,849

Depreciation expense for the three and six months ended September 27, 2015 was $3.2 million and $6.2 million, respectively. Depreciation expense for the three and six months ended September 28, 2014 was $2.6 million and $4.3 million, respectively. Equipment under construction consists primarily of production and lab equipment. Equipment under construction is not subject to depreciation until it is available for its intended use. All of the equipment under construction is expected to be completed and placed in service by the end of fiscal 2016.

Accrued Liabilities

Accrued liabilities at September 27, 2015 and March 29, 2015 consist of the following:

	September 27, 2015		March 29, 2015
	(in thousands)
Contingent consideration, current portion	$	3,817	$	6,364
Payroll-related expenses		8,367		7,197
Bonuses		4,051		5,352
Legal fees		12,314		921
Accrued contractual coupon interest payable on convertible senior notes		1,247		1,252
Deferred revenue		1,663		1,584
Income tax payable		547		311
Other tax payable		768		768
Acquisition-related payable		1,380		1,380
Customer deposit		1,796		900
Other accrued liabilities		7,818		5,962
Total accrued liabilities	$	43,768	$	31,991

15

INVENSENSE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Other Long-term Liabilities

Other long-term liabilities at September 27, 2015 and March 29, 2015 consist of the following:

	September 27, 2015		March 29, 2015
	(in thousands)
Long-term tax payable	$	14,223	$	11,918
Deferred tax liabilities		3,481		3,936
Deferred revenue		3,000		3,400
Deferred rent		3,740		3,630
Contingent consideration, noncurrent portion		—		2,760
Long-term debt		2,502		2,472
Other long-term liabilities		251		136
Total accrued liabilities	$	27,197	$	28,252

4. Commitments and Contingencies

Operating Lease Obligations

The Company has non-cancelable operating leases for its facilities through fiscal year 2022.

Future minimum lease payments, net of future minimum lease income, under operating leases as of September 27, 2015 are as follows:

	Amount
Fiscal Years Ending:	(in thousands)
2016 (remainder)	$	2,456
2017		5,172
2018		6,357
2019		6,544
2020		5,197
Beyond		1,823
Total	$	27,549

The Company’s lease agreements provide for rental payments which have certain lease incentives and graduated rental payments. As a result, the rent expense is recognized on a straight-line basis over the term of the lease. The Company’s rental expense under operating leases, net of the rent income from subleases of $0.4 million and $0.7 million, was approximately $1.2 million and $2.6 million for the three and six months ended September 27, 2015, respectively. The Company’s rental expense under operating leases was approximately $1.2 million and $2.3 million for the three and six months ended September 28, 2014, respectively.

Purchase Commitments

The Company has non-cancelable purchase commitments with its foundry vendors. Future minimum payments of $55.7 million under the purchase commitments as of September 27, 2015 are less then twelve months.

16

INVENSENSE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Legal Proceedings and Contingencies

From time to time the Company is involved in litigation that the Company believes is of the type common to companies engaged in our line of business, including intellectual property and employment issues.

In January and March of 2015, purported shareholders filed five substantially similar class action complaints in the U.S. District Court, Northern District of California against the Company and two of the Company’s current and former executives (“Class Action Defendants”) (Jim McMillan v. InvenSense, Inc., et al. Case No. 3:15-cv-00084-JD, filed January 7, 2015; William Lendales v. InvenSense, Inc. et al., Case No. 3:15-cv-00142-VC, filed on January 12, 2015; Plumber & Steamfitters Local 21 Pension Fund v. InvenSense, Inc., et al., Case No. 5:15-cv-00249-BLF, filed on January 16, 2015; William B. Davis vs. InvenSense, Inc., et al., Case No. 5:15-cv-00425-RMW, filed on January 29, 2015; and Saratoga Advantage Trust Technology & Communications Portfolio v. InvenSense et al., Case No. 3:15-cv-01134, filed on March 11, 2015). On April 23, 2015, those cases were consolidated into a single proceeding which is currently pending in the U.S. District Court, Northern District of California and captioned In re InvenSense, Inc. Securities Litigation, Case No. 3:15-cv-00084-JD (the “Securities Case”), and the Vossen Group was designated as lead plaintiff. On May 26, 2015, the lead plaintiffs filed a consolidated amended class action complaint, which alleges that the defendants violated the federal securities laws by making materially false and misleading statements regarding our business results between July 29, 2014 and October 28, 2014, and seeks unspecified damages along with plaintiff’s costs and expenses, including attorneys’ fees. On June 25, 2015, the Class Action Defendants filed a motion seeking dismissal of the case and a hearing on that motion was held on October 7, 2015.

In addition, in January and March of 2015, other purported shareholders filed three substantially similar shareholder derivative complaints against two of our current and former officers and several of our current directors, twice in the U.S. District Court, Northern District of California and once in Santa Clara Superior Court (George E Rollins v. Behrooz Abdi et al., Case No. 5:15-cv-00184-PSG, filed on January 13, 2015; Linda Karr v. Behrooz Abdi et al., Case No. 5:15-cv-00200-NC, filed on January 14, 2015; and Robert Bilbrey v. Behrooz Abdi et al., Case No. 1-15-CV-278742 was filed on March 20, 2015) (collectively, the “Derivative Cases”). In the Derivative Cases complaints, the plaintiffs make allegations similar to those presented in the Securities Case, but the plaintiff asserts various state law causes of action, including claims of breach of fiduciary duty and unjust enrichment. The Company has undertaken an evaluation of these complaints. Plaintiffs in the Derivative Cases have agreed to an indefinite stay pending developments in the Securities Case. In light of the unresolved legal issues, while a loss is reasonably possible, the amount of any potential loss cannot be estimated. At this stage, the Company is unable to predict the outcome of this matter and, accordingly, cannot estimate the potential financial impact on the Company’s business, operating results, cash flows or financial position.

The semiconductor and MEMS industries are characterized by companies that hold large numbers of patents and other intellectual property rights and that vigorously pursue, protect and enforce intellectual property rights.

Robert Bosch GmbH (“Bosch”), one of the Company’s competitors, and the Company have each previously made generalized assertions of potential patent infringement by the other. On October 28, 2015, the Company and Bosch resolved all assertions of potential infringement between them and entered into a multi-year, worldwide patent cross license agreement for MEMS and sensor technologies, excluding patents covering InvenSense’s CMOS-MEMS eutectic bonding production process and Bosch’s two-layer porous silicon production process, and an upfront payment of $11.5 million to Bosch. The other terms of the settlement and the patent cross license agreement remain confidential and are not expected to have a material impact on our future results. Based on the status of the negotiations, the Company recognized a pre-tax charge of $11.7 million during the quarter ended June 28, 2015. In the future, other third parties may assert against the Company and its customers and distributors, their patent and other intellectual property rights to technologies that are important to our business.

17

INVENSENSE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

The Company is not aware of any other pending legal matters or claims, individually or in the aggregate, that is expected to have a material adverse impact on its consolidated financial position, results of operations, or cash flows. However, the Company’s analysis of whether a claim may proceed to litigation cannot be predicted with certainty, nor can the results of litigation be predicted with certainty. Nevertheless, defending any of these actions, regardless of the outcome, may be costly, time consuming, distract management personnel, and have a negative effect on our business. An adverse outcome in any of these actions, including a judgment or settlement, may cause a material adverse effect on our future business, operating results, and/or financial condition.

The Company indemnifies certain customers, distributors, suppliers and subcontractors for attorney fees and damages and costs awarded against such parties in certain circumstances in which the Company’s products are alleged to infringe third-party intellectual property rights, including patents, registered trademarks or copyrights. Indemnification costs are charged to operations as incurred.

The Company’s Third Amended and Restated Bylaws require the Company to indemnify its directors and officers and employees to the fullest extent permitted by the Delaware General Corporation Law (DGCL). In addition, the Company’s current directors, including the Company’s chief executive officer and certain executive officers, have entered into separate indemnification agreements with the Company. The Company’s Second Amended and Restated Certificate of Incorporation, as amended, limits the liability of directors to the Company or its stockholders to the fullest extent permitted by the DGCL. The obligation to indemnify generally means that the Company is required to pay or reimburse the individuals’ reasonable legal expenses and possibly damages and other liabilities incurred in connection with these matters.

5. Convertible Senior Notes

In November 2013, the Company issued $175.0 million aggregate principal amount of 1.75% Convertible Senior Notes due on November 1, 2018 (the “Notes”), in a private placement to qualified institutional buyers pursuant to Rule 144A under the Securities Act of 1933 (the “Securities Act”). The Notes offered have not been registered under the Securities Act, or applicable state securities laws or blue sky laws, and may not be offered or sold in the United States absent registration under the Securities Act and applicable state securities laws or available exemptions from the registration requirements.

The Notes are senior unsecured obligation of the Company and rank equally in right of payment with all of the Company’s existing and future senior unsecured indebtedness and are junior to any of the Company’s existing and future secured indebtedness. The Notes pay interest in cash semi-annually (May and November) at a rate of 1.75% per annum. Net proceeds received by the Company, after issuance costs, were approximately $169.3 million.

On or after August 1, 2018 until the maturity date, the Notes may be converted at the option of the holders. Holders may convert the Notes at their option prior to August 1, 2018 only under the following circumstances:

1) During any calendar quarter and only during such calendar quarter, if the last reported sale price of the Company’s common stock for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on the last trading day of the immediately preceding calendar quarter is greater than or equal to 130% of the conversion price of $21.89 on each applicable trading day;

2) During the five business day period after any five consecutive trading day period in which the “trading price” per $1,000 principal amount of notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price of our common stock and the conversion rate on each such trading day; or

3) Upon the occurrence of specified corporate events, including if there is a fundamental change.

18

INVENSENSE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Upon conversion, the Company will pay cash up to the aggregate principal amount of the notes to be converted and pay or deliver cash, shares of its own common stock or a combination of cash and shares of its own common stock, at the Company’s election, in respect of the remainder, if any, of its conversion obligation in excess of the aggregate principal amount of the notes being converted.

The conversion rate is initially 45.683 shares per $1,000 principal amount of the Notes (equivalent to an initial conversion price of approximately $21.89 per share of common stock), subject to certain adjustments.

The Notes are not redeemable by the Company prior to the maturity date. At the event of default or fundamental change, the principal amount of the notes plus accrued and unpaid interest may become due immediately at the Note holders’ option.

The Company separately accounts for the liability and equity components of the Notes. The initial debt component of the Notes was valued at $135.7 million based on the contractual cash flows discounted at an appropriate comparable market non-convertible debt borrowing rate at the date of issuance of 7.3%, with the equity component representing the residual amount of the proceeds of $39.3 million which was recorded as a debt discount. The issuance costs were allocated pro-rata based on the relative initial carrying amounts of the debt and equity components, including the Note hedges and warrants transactions described below. As a result, $2.5 million of the issuance costs was allocated to the equity component of the Notes, $3.0 million of issuance costs paid to the initial purchaser was accounted for as a debt discount and $0.25 million of the issuance costs was classified as other non-current assets. Debt issuance costs was reclassified and presented in the balance sheet as a direct deduction from the carrying value of the debt liability, consistent with the presentation of a debt discount in the first quarter of the Company’s fiscal year 2016 pertaining to the requirement of ASU 2015-03, Simplifying the Presentation of Debt Issuance Costs. The debt discount and the issuance costs allocated to the debt component are amortized as additional interest expense over the term of the Notes using the effective interest method. As of September 27, 2015, the remaining amortization period of the debt discount and the issuance costs is 3.1 years. The effective interest rate of the Notes is 7.84% per annum (1.75% coupon rate plus 6.09% of non-cash accretion expense).

Convertible Notes Hedges and Warrants

Concurrent with the issuance of the Notes on November 6 and 7, 2013, the Company purchased call options for its own common stock to hedge the Notes (the “Note Hedge”) and sold call options for its own common stock (the “Warrants”). The Note Hedges and Warrants transactions are structured to reduce the potential future economic dilution associated with the conversion of the Notes and are excluded from the computation of diluted earnings per share for each period presented, as the Company’s average stock price during each period is less than the conversion price.

The Note Hedges - On November 6 and 7, 2013, the Company purchased call options from a counterparty for an aggregate price of approximately $39.1 million, which gives the Company the right to buy from the counterparty up to approximately 8.0 million shares of the Company’s common stock at a price of $21.89 per share, subject to adjustments. The Note Hedge is exercisable upon conversion of the Note for a number of shares equal to the product of 0.045683 and amount of the converted Note. Upon exercise of the Note Hedge, the Company will receive from the counterparty cash, shares of Company’s common stock, or a combination thereof, equal to the amount by which the market price per share of the Company’s common stock exceeds $21.89 during the applicable valuation period. By the Note Hedge terms the Company will receive cash and shares in a combination that offsets share dilution caused by conversion of the Note.

Warrants - On November 6 and 7, 2013, the Company sold call options to the same counterparty for approximately $25.6 million, which gives the counterparty the right to buy from the Company up to approximately 8.0 million shares of the Company’s common stock at an exercise price of $28.66 per share, subject to adjustments, on a series of days commencing on February 1, 2019 and ending May13, 2019. Upon exercise of the Warrants, the Company has the option to deliver cash or shares of its common stock equal to the difference between the market price on the exercise date and the strike price of the warrants. Upon exercise of the Warrants, the Company will pay to the Initial Purchaser cash, shares of Company’s common stock, or a combination thereof (at the Company’s choice), equal to the amount by which the market price per share of the Company’s common stock exceeds $28.66 during the applicable valuation period.

19

INVENSENSE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

The Note Hedges and Warrants above are classified in stockholders’ equity in the Company’s consolidated balance sheets.

The following table summarizes the principal amounts and related unamortized discount on the Notes (in thousands):

	September 27, 2015		March 29, 2015
	(in thousands)
Principal amount of the Notes	$	175,000	$	175,000
Unamortized discount on the Notes		28,233		32,190
Net carrying value	$	146,767	$	142,810

The following table presents the amount of interest expense recognized related to the Notes (in thousands):

	Three Months Ended				Six Months Ended
	September 27,		September 28,		September 27,		September 28,
	2015		2014		2015		2014
	(in thousands)
Contractual coupon interest expense	$	764	$	764	$	1,528	$	1,532
Accretion of debt discount		1,986		1,843		3,931		3,647
Amortization of debt issuance costs		13		13		26		25
Total interest expense related to the Notes	$	2,763	$	2,620	$	5,485	$	5,204

As of September 27, 2015, our aggregate future principal debt maturities are as follows (in thousands):

Fiscal Year	September 27, 2015
	(in thousands)
2016-2019	$	175,000
Total	$	175,000

The convertible notes issued by the Company in November 2013 are shown in the accompanying consolidated balance sheets at their original issuance value, net of unamortized discount, and are not marked to market each period. The approximate fair value of the convertible notes as of September 27, 2015 was $158.1 million. The fair value of the convertible notes was determined using quoted market prices for similar securities, which, due to limited trading activity, are considered Level 2 in the fair value hierarchy.

6. Stockholders’ Equity

Stock Plans

In July 2011, the Company’s Board of Directors and its stockholders approved the establishment of the 2011 Stock Incentive Plan (the “2011 Plan”). The 2011 Plan provides for annual increases in the number of shares available for issuance there under on the first business day of each fiscal year, beginning with the Company’s fiscal year following the year of this offering, equal to four percent (4%) of the number of shares of the Company’s common stock outstanding as of such date, which resulted in an annual increase of 3.6 million shares for fiscal year 2016.

Under the Company’s 2011 Stock Incentive Plan (the “Plans”), the Board of Directors may grant either incentive stock options, nonqualified stock options, or stock awards to eligible persons, including employees, nonemployees, members of the Board of Directors, consultants and other independent advisors who provide services to the Company.

20

INVENSENSE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Incentive stock options may only be granted to employees and at an exercise price of no less than fair value on the date of grant. Nonqualified stock options may be granted at an exercise price of no less than 100% of fair value on the date of grant. For owners of more than 10% of the Company’s common stock, options may only be granted for an exercise price of not less than 110% of fair value, and these options generally expire 10 years from the date of grant. Stock options may be exercisable immediately but subject to repurchase. Stock options vest over the period determined by the Board of Directors, generally four years.

Stock option activities of the Company under the Plans are as follows (in thousands, except per share amounts):

	Options Issued and Outstanding			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (In Years)		Aggregate Intrinsic Value
Balance — March 29, 2015		8,307		$	12.99		7.60	$	29,817
Options granted		1,606			14.72
Exercised options		(361	)		6.67
Cancelled options		(344	)		13.71
Balance — September 27, 2015		9,208		$	13.51		7.59	$	5,271
Vested and expected to vest — September 27, 2015		8,335		$	13.24		7.46	$	5,268
Vested — September 27, 2015		4,210		$	11.17		6.52	$	5,193

Valuation of Stock-Based Awards

The Company applies the provisions of ASC 718-10 “Compensation—Stock Compensation” which establishes the accounting for stock-based awards based on the fair value of the award measured at grant date. Accordingly, stock-based compensation cost is recognized in the consolidated statements of income as a component of both cost of revenues and operating expenses over the requisite service period. ASC 718-10 requires tax benefits in excess of compensation cost to be reported as a financing cash flow rather than as a reduction of taxes paid. The determination of the fair value of stock-based payment awards on the date of grant using the Black-Scholes option pricing model is affected by the volatilities of a peer group of companies based on industry, stage of life cycle, size and financial leverage, actual and projected employee stock option exercise behaviors, risk-free interest rate and expected dividends. The Company used historical experience to estimate expected term. The expected volatility was based on the historical stock volatilities of the Company’s historical data with that of a peer group of publicly listed companies over a period equal to the expected terms. The risk-free interest rate is based on U.S. Treasury zero-coupon issues with remaining terms similar to the expected term. The Company does not anticipate paying any cash dividends in the foreseeable future and, therefore, uses an expected dividend yield of zero.

The aggregate intrinsic value of the stock options exercised during the three and six months ended September 27, 2015 was $0.4 million and $2.6 million respectively. The aggregate intrinsic value of the stock options exercised during the three and six months ended September 28, 2014 was $11.2 million and $14.1 million respectively. The aggregate intrinsic value was calculated as the difference between the exercise price of the stock options and the estimated fair market value of the underlying common stock at the date of exercise.

21

INVENSENSE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

The number of options expected to vest takes into account an estimate of expected forfeitures. The remaining unamortized stock-based compensation expense, reduced for estimated forfeitures and related to non-vested options, was $19.9 million at September 27, 2015, and will be amortized over a weighted-average remaining period of approximately 2.5 years. Total unrecognized expense will be adjusted for future changes in estimated forfeitures.

The Company used the following weighted-average assumptions in determining stock-based compensation expense for options granted in the three and six months ended September 27, 2015 and September 28, 2014.

	Three Months Ended						Six Months Ended
	September 27,			September 28,			September 27,			September 28,
	2015			2014			2015			2014
Expected term (in years)		5.1			4.6			5.1			4.5
Volatility		44.4	%		41.4	%		45.1	%		41.7	%
Risk-free interest rate		1.5	%		1.5	%		1.5	%		1.4	%
Dividend rate		0	%		0	%		0	%		0	%

The weighted-average grant date fair value of the Company’s stock options granted in the three and six month ended September 27, 2015 was $5.33 and $6.06 per share, respectively. The weighted-average grant date fair value of the Company’s stock options granted in the three and six month ended September 28, 2014 was $8.71 and $7.33 per share, respectively.

Restricted Stock Units and Restricted Stock

Restricted stock unit and restricted stock activity of the Company under the Plans are as follows:

				Weighted Average
				Grant Date Fair
Restricted stock units and restricted stock activities	Shares			Value Per Share
	(in thousands, except per share amount)
Unvested at March 29, 2015		4,030		$	17.75
Granted		1,060			14.20
Released		(606	)		17.26
Forfeited		(367	)		17.39
Unvested at September 27, 2015		4,117		$	16.94

Restricted stock units and restricted stock granted to employees are generally subject to the employee’s continued service to the Company over that period. The fair value of restricted stock units and restricted stock is determined using the fair value of the Company’s common stock on the date of the grant. Compensation expense is generally recognized on a straight-line basis over the requisite service period of each grant adjusted for estimated forfeitures. At September 27, 2015, there was approximately $46.2 million of total unrecognized compensation cost related to restricted stock units and restricted stock, which the Company expects to recognize over a period of 2.8 years. The weighted-average grant-date fair value per share of restricted stock units and restricted stock awarded in the three and six months ended September 27, 2015 was $11.77 and $14.20 per share, respectively. The weighted-average grant-date fair value per share of restricted stock units and restricted stock awarded in the three and six months ended September 28, 2014 was $24.18 and $21.84 per share, respectively.

22

INVENSENSE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

2013 Employee Stock Purchase Plan

Under the 2013 Employee Stock Purchase Plan, effective September 13, 2013, (the “ESPP”), eligible employees may apply accumulated payroll deductions, which may not exceed 10% of an employee’s compensation, to the purchase of shares of the Company’s common stock at periodic intervals. The purchase price of stock under the ESPP is equal to 85% of the lower of (i) the fair market value of the Company’s common stock on the first day of each offering period, or (ii) the fair market value of the Company’s common stock on the purchase date (as defined in the ESPP). Each offering period consists of one purchase period of approximately six months duration.

At the 2015 annual meeting of stockholders, stockholders of the Company approved an amendment to the current ESPP to increase the number of shares of common stock reserved for future issuance by 1,000,000 shares which brought the total of common stock reserved for issuance to employees to an aggregate of 1,400,000 shares. As of September 27, 2015, 289,000 shares had been purchased.

During the three and six months ended September 27, 2015, compensation expense recognized in connection with the Purchase Plan was $0.2 million and $0.5 million, respectively. During the three and six months ended September 28, 2014, compensation expense recognized in connection with the Purchase Plan was $0.2 million and $0.4 million, respectively.

Common Stock

As of September 27, 2015 and March 29, 2015, common stock reserved for future issuance was as follows:

Common stock reserved for issuance	September 27, 2015		March 29, 2015,
	(in thousands)
Stock plans
Outstanding stock options		9,208		8,307
Outstanding restricted stock units and restricted stocks		4,117		4,030
Reserved for future equity incentive grants		12,006		10,300
		25,331		22,637
Purchase plan		1,111		230
Warrants to purchase common stock		7,995		7,995
Total common stock reserved for future issuances		34,437		30,862

Stock-Based Compensation Expense

Total employee stock-based compensation cost for the Company’s stock plans for the three and six months ended September 27, 2015 and September 28, 2014 is as follows:

	Three Months Ended				Six Months Ended
	September 27,		September 28,		September 27,		September 28,
	2015		2014		2015		2014
	(in thousands)
Cost of revenue	$	584	$	654	$	1,184	$	1,311
Research and development		4,002		3,197		7,838		6,715
Selling, general and administrative		4,462		3,151		8,661		6,611
Total stock-based compensation expense	$	9,048	$	7,002	$	17,683	$	14,637

23

INVENSENSE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

7. Income Taxes

In the three and six months ended September 27, 2015, the Company recorded an income tax provision (benefit) of ($2.0) million and ($1.7) million, respectively. In the three and six months ended September 28, 2014, the Company recorded an income tax provision of $0.6 million and $0.9 million, respectively. The Company’s estimated 2016 effective tax rate differs from the U.S. statutory rate primarily due to foreign tax differentials, a current year loss in the U.S., and was negatively affected by an increase in non-deductible stock option expense, and other deductible federal tax attributes.

Over 90% of our revenue is derived from sales to customers located outside the U.S. A significant percentage of our pre-tax income in the three months ended September 27, 2015 and September 28, 2014 was generated internationally, primarily from our Cayman Island subsidiary, which is currently a zero tax jurisdiction. Since 2011, our Cayman Island subsidiary has procured the rights to manufacture and sell our products in non-US locations via an intercompany technology license arrangement with its U.S. parent company. In addition, the Company has not provided for U.S. federal income and foreign withholding taxes on undistributed earnings from its non-U.S. subsidiaries, as it is the practice and intention of the Company to reinvest the earnings of its non-U.S. subsidiaries in those operations. Our effective tax rate is highly dependent upon the geographic distribution of our worldwide earnings or losses, and the tax regulations in each geographic region. We expect that a large percentage of our consolidated pre-tax income will continue to be derived from, and reinvested in, our overseas operations. We anticipate that this pre-tax income will continue to be subject to foreign tax at significantly lower tax rates when compared to the United States federal statutory tax rate.

The Company had deferred tax assets related to Research and Development Credits and other tax attributes including accrued expenses and stock based compensation that can be used to offset taxable income in future periods and reduce our income taxes payable in those future periods. Realization of our deferred tax assets is dependent upon future federal, state and foreign taxable income. Many of those credit carryforwards will expire if they are not used within certain time periods. As of September 27, 2015, management determined that there is sufficient positive evidence to conclude that it is more likely than not that we will have sufficient taxable income in the future that will allow us to realize these DTAs. However, it is possible that some or all of these credits could ultimately expire unused, especially if our U.S. entity does not make a taxable profit, which has been limited mainly due to stock option deductions since the company went public. Therefore, unless we are able to generate sufficient taxable income from our U.S. operations, a substantial valuation allowance to reduce our U.S. DTAs may be required, which would materially increase our expenses in the period the allowance is recognized and materially adversely affect our results of operations and statement of financial condition. Our judgments regarding future profitability may change due to future market conditions, changes in U.S. or international tax laws and other factors. These changes, if any, may require possible material adjustments to these deferred tax assets, resulting in a reduction in net income or an increase in net loss in the period when such determinations are made.

The Company has not provided for U.S. federal income and foreign withholding taxes on undistributed earnings from non-U.S. operations as of September 27, 2015.

The Company has recorded $14.2 million of uncertain tax positions within “Other long-term liabilities” on the condensed consolidated balance sheet as at September 27, 2015. The Company does not expect any significant increases or decreases to its unrecognized tax benefits within the next twelve months. While management believes that the Company has adequately provided for all tax positions, amounts asserted by tax authorities could be greater or less than the recorded position. Accordingly, the Company’s provisions on federal, state and foreign tax-related matters to be recorded in the future may change as revised estimates are made or the underlying matters are settled or otherwise resolved.

The Company is in the process of an Internal Revenue Service (“IRS”) examination for tax years 2011, 2012, 2013 and 2014. The Company may be subject to examination by California for tax years 2010 and forward. Generally, the Company is subject to routine examination for tax years 2008 and forward in various foreign tax jurisdictions in which it operates.

24

INVENSENSE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

8. Acquisition

The Company completed two acquisitions in fiscal 2015 and one acquisition in fiscal 2014. The acquisitions have been accounted for using the acquisition method of accounting in accordance with ASC 805—Business Combinations. Under the acquisition method of accounting, the total purchase consideration of the acquisition is allocated to the tangible assets and identifiable intangible assets and liabilities assumed based on their relative fair values. The excess of the purchase consideration over the net tangible and identifiable intangible assets is recorded as goodwill, and was derived from expected benefits from future technology development, synergies and the knowledgeable and experienced workforce who joined the Company after the acquisition.

Movea S.A

On July 22, 2014, the Company acquired 100% equity interest of Movea, a company formed under the laws of France, and a leading provider of software for ultra-low power location, activity tracking and context sensing. The acquisition of Movea further scales the Company’s leadership in motion software.

The Company paid $60.9 million in cash as consideration for the acquisition and could pay an additional $13.0 million in cash contingent upon the achievement of certain milestones within one year of the acquisition.

The table below is a summary of the purchase price allocation of the fair value of assets acquired and liabilities assumed in connection with the acquisition of Movea (in thousands):

Cash consideration	$	60,900
Contingent consideration		8,400
	$	69,300
Allocation of purchase price:
Current assets	$	3,082
Fixed assets		209
Other non-current assets		592
Developed technology		7,200
Goodwill		68,330
Current liabilities		(5,016	)
Long-term liabilities		(5,097	)
Total preliminary purchase price	$	69,300

The purchase price included $2.6 million of long-term debt which was included in the long-term liabilities. The debt was measured at fair value using the effective interest rate method and considered as Level 3 inputs as defined in the fair value hierarchy, which approximates carrying value as of September 27, 2015.

The purchase price includes contingent considerations of (i) $8.0 million payable in cash to the former Movea shareholders upon a design win with a major smartphone manufacturer within one year of closing date, and (ii) $5.0 million payable in cash to the former Movea shareholders upon a specific product development milestone before December 29, 2014. The fair value of the contingent consideration of $8.4 million was derived from a probability weighted earn-out model of future contingent payments and recorded in accrued liabilities. The product development milestone of $5.0 million was achieved and the payment was made in fiscal 2015. The difference between the contractual amount of $5.0 million and the fair value of this contingent consideration was recorded in the research and development expense for the year ended March 29, 2015. During the six months ended September 27, 2015, the fair value of contingent consideration for Movea declined by $4.0 million. The decline in fair value was the result of a reduction in the probability of a design win milestone associated with the Movea acquisition from 50% to 0%. The decline in fair value of the design win milestones for Movea was recorded as a credit to research and development expense.

25

INVENSENSE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

The purchase price exceeded the fair value of the net tangible and identifiable intangible assets acquired and, as a result, the Company recorded goodwill in connection with this transaction. The acquisition will provide assembled workforce and synergy with other of the Company’s offerings. These factors primarily contributed to a purchase price that resulted in goodwill.

The following table presents certain information on acquired identifiable intangible assets related to the Movea acquisition:

	Estimated Fair Value		Estimated Useful Life
	(in thousands)		(in years)
Developed technology	$	7,200		5

The fair value of developed technology was determined using a cost approach, which includes an estimate of time and expenses required to recreate the intangible asset. The fair value of developed technology was capitalized as of the acquisition date and will be amortized using a straight-line method to cost of revenue over the estimated useful life of five years.

Trusted Positioning, Inc.

On August 29, 2014, the Company completed the acquisition of Trusted Positioning, Inc., (“TPI”), a Canadian corporation, which is an indoor/outdoor positioning software company to provide ‘Positioning Everywhere’. The acquisition of TPI, particularly its advanced location tracking software, strengthens the Company’s position as a provider of intelligent sensor System on Chips (SoC) for the fast growing mobile market.

The Company’s acquisition of TPI was completed through a step acquisition. In fiscal 2014, the Company made investments totaling $0.3 million to own approximately 4.57% of TPI’s outstanding common stock. On August 29, 2014, the Company purchased the remaining outstanding common stock of TPI for a total consideration of $25.9 million. The total purchase price, as presented in the table below, consists of (i) cash of $11.4 million, (ii) issuance of 236,000 shares of the Company’s common stock with a fair value of $5.7 million, (iii) contingent considerations with a combined fair value of $7.6 million payable upon TPI’s achievement of certain product development milestones, and (iv) initial investments with a fair value of $1.2 million.

The table below is a summary of the purchase price allocation for the 100% equity interest of the fair value of assets acquired and liabilities assumed in connection with the acquisition of TPI (in thousands):

Cash consideration	$	11,379
Issuance of common stock		5,703
Contingent consideration		7,634
Fair value of previously held 4.57% equity interest		1,215
	$	25,931
Allocation of purchase price:
Current assets	$	392
Fixed assets		50
Other non-current assets		546
Developed technology		8,600
Goodwill		19,893
Current liabilities		(1,247	)
Long-term liabilities		(2,303	)
Total preliminary purchase price	$	25,931

26

INVENSENSE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

The purchase price includes contingent consideration comprised of (i) $5.0 million payable upon a design win within one year of acquisition, (ii) $3.0 million payable upon achieving a development milestone before December 29, 2014, (iii) $2.0 million payable upon successful development of cloud application within two years of acquisition and (iv) $2.0 million upon first deployment of cloud application which is expected within one year of successful development of cloud application. The contingent considerations, which was derived from a probability weighted earn-out model of future contingent payments, have a combined fair value of $7.6 million, of which $4.9 million was recorded in accrued liabilities and $2.7 million was recorded in other long-term liabilities. The development milestone of $3 million was achieved and the payment was made in fiscal 2015. The difference between the contractual amount of $3.0 million and the fair value of this contingent consideration was recorded in the research and development expense for the year ended March 29, 2015.

During the six months ended September 27, 2015, the fair value of contingent consideration for TPI declined by $1.3 million. The decline in fair value was the result of a reduction in the probability of a design win associated with the TPI acquisition from 50% to 0%. The decline in fair value of the design win milestones for TPI was $2.4 million which was recorded as a credit to research and development expense. Offsetting this amount is an increase in the fair value of two TPI cloud application milestones as a result of an increase in the estimated probability of achievement of those milestones. The increase in the fair value of the cloud application milestones was $1.1 million which was recorded as a debit to research and development expense.

The following table presents certain information on acquired identifiable intangible assets related to the TPI acquisition:

	Estimated Fair Value		Estimated Useful Life
	(in thousands)		(in years)
Developed technology	$	8,600		5

The fair value of developed technology was determined using a cost approach, which includes an estimate of time and expenses required to recreate the intangible asset. The fair value of developed technology was capitalized as of the acquisition date and will be amortized using a straight-line method to cost of revenue over the estimated useful life of 5 years.

In connection with the acquisition of TPI, the Company recorded a non-cash gain of approximately $0.9 million resulting from the difference between carrying value of its initial investments in TPI of $0.3 million and fair value of such investments of $1.2 million, as of the acquisition date. This non-cash gain is recorded in “Other income, net” on the Condensed Consolidated Statement of Operations in fiscal 2015.

9. Goodwill and Intangible Assets

The Company monitors the recoverability of goodwill recorded in connection with acquisitions annually, or whenever events or changes in circumstances indicate the carrying value may not be recoverable. There were no changes in the carrying amount of goodwill since March 29, 2015. The Company performs the annual goodwill impairment analysis during the third quarter of each fiscal year. As of September 27, 2015, the Company concluded that the $139.2 million of goodwill was not impaired.

Purchased intangible assets subject to amortization consist primarily of developed technology, customer relationships and patents and are reported net of accumulated amortization. Developed technology, customer relationships and patents are amortized on a straight line basis over the estimated useful life of the assets. In-process research and development is assessed for impairment until the development is completed and products are available for sale. The Company expects to complete the in-process research and development projects at various dates during fiscal year 2016 at which time amortization will commence. The costs that the Company incurred on the in-process research and development projects after the acquisition were expensed. During fiscal 2015, the Company recorded $0.8 million of impairment on in-process research and development on the MEMS Microphone business. During the three and six months ended September 2015, one of the IPR&D projects was released to production. Therefore, the IPR&D value allocated to this project of $3.3 million was transferred to developed technology. Further, the estimated useful life for this technology is five years.

27

INVENSENSE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Amortization for acquired intangible assets for the three and six months ended September 27, 2015 was approximately $2.4 million and $4.5 million, respectively. Amortization for purchased intangible assets for the three months and six months ended September 28, 2014 was approximately $1.6 million and $2.9 million respectively. The following table represents intangible assets and accumulated amortization:

	September 27, 2015
			Accumulated
	Gross		Amortization		Net
	(in thousands)
Developed technology	$	47,610	$	12,873	$	34,737
Customer relationships		1,560		427		1,133
Patents		2,120		255		1,865
Total intangible assets subject to amortization	$	51,290	$	13,555	$	37,735

	March 29, 2015
			Accumulated
	Gross		Amortization		Net
	(in thousands)
Developed technology	$	44,320	$	8,697	$	35,623
Customer relationships		1,560		316		1,244
Patents		2,120		39		2,081
Total intangible assets subject to amortization	$	48,000	$	9,052	$	38,948

The estimated future amortization expense related to intangible assets at September 27, 2015, is as follows:

	Estimated
	Amortization
Fiscal Year	(in thousands)
2016 (reminder)	$	4,612
2017		9,225
2018		9,225
2019		9,225
2020		5,208
Thereafter		240
Total	$	37,735

28

ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following discussion and analysis of our financial condition and results of operations should be read in conjunction with the condensed consolidated financial statements and the notes to those statements included elsewhere in this Quarterly Report on Form 10-Q, the Consolidated Financial Statements and Notes thereto for the year ended March 29, 2015, and with management’s discussion and analysis of our financial condition and results of operations included in our Annual Report on Form 10-K with the Securities and Exchange Commission (SEC) on May 28, 2015.

This Quarterly Report on Form 10-Q, including this Management’s Discussion and Analysis of Financial Condition and Results of Operations, includes a number of forward-looking statements that involve many risks and uncertainties. Forward-looking statements are identified by the use of the words “would”, “could”, “will”, “may”, “expect”, “believe”, “should”, “anticipate”, “outlook”, “if”, “future”, “intend”, “plan”, “estimate”, “predict”, “potential”, “targets”, “seek” or “continue” and similar words and phrases, including the negatives of these terms, or other variations of these terms, that denote future events. These forward-looking statements include our expectations as to future sales of consumer electronics devices that could potentially integrate motion processors, our expectation that our products will remain a component of customers’ products throughout any such product’s life cycle, our belief that users of our products are likely to introduce these products into other devices as well as to adopt our more advanced devices, our belief that certain end-markets pose large growth opportunities for motion processing functionality, our ability to protect our intellectual property in the United States and abroad, our belief in the sufficiency of our cash flows to meet our needs and our future financial and operating results. These statements reflect our current views with respect to future events and our potential financial performance and are subject to risks and uncertainties that could cause our actual results and financial position to differ materially and adversely from what is projected or implied in any forward-looking statements included in this Form 10-Q. These factors include, but are not limited to, the risks referred to under Item 1A. of Part I — “Risk Factors,” included in the Company’s Annual Report on Form 10-K filed on May 28, 2015 with the SEC and Item 2 of Part I — “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” and discussed elsewhere in this Quarterly Report on Form 10-Q and those discussed in other documents we file with the SEC. We make these forward-looking statements based upon information available on the date of this Form 10-Q, and we have no obligation (and expressly disclaim any such obligation) to update or alter any forward-looking statements, whether as a result of new information or otherwise except as otherwise required by securities regulations.

Overview

Business Overview

We are the pioneer and a global market leader in devices and related software for sensor system on chip (Sensor SoC) for the motion and sound markets. Our motion solutions detect and track an object’s motion in three-dimensional space. We assimilate information from gyroscopes, accelerometers, magnetometers (e.g., a compass), pressure sensors, and microphones to determine how a host device is moving, its direction, its elevation, and what it is hearing. We leverage our unique intellectual property in micro-electro-mechanical system (MEMS) design and manufacturing to reduce size, cost and power. Our proprietary algorithms improve speed and accuracy and our application programming interfaces (APIs) simplify the task of incorporating motion in end user applications.

While our solutions have broad applicability, we currently target the Mobile, Wearables, Smart Home, Gaming, Industrial, and Automotive markets. We utilize a fabless model, leveraging generally available CMOS and MEMS foundries and semiconductor packaging supply chains in combination with our own proprietary additions and improvements.

Our current strategy is to continue targeting consumer electronics and industrial markets with integrated motion and sound devices that meet or exceed the performance and cost requirements of customers, are easy to integrate and set industry performance benchmarks. Our ability to secure new customers depends on winning competitive processes, known as design wins. These selection processes are typically lengthy, and, as a result, our sales cycles will vary based on the market served, whether the design win is with an existing or a new customer and whether our product being designed into our customer’s device is a first generation or subsequent generation product. Because the sales cycle for our products is long, we can incur design and development support expenditures in circumstances where we do not ultimately recognize any net revenue for an extended period of time or at all. We do not receive long-term purchase commitments from any of our customers, all of whom purchase our products on a purchase order basis. While product life cycles in our target market vary by application, once one of our solutions is incorporated into a customer’s design, we believe that it will likely remain a component of the customer’s product for its life cycle because of the time and expense associated with redesigning the product or substituting an alternative solution or customer device certification protocols. This dynamic is also supported by the increased likelihood that once a customer introduces one of our products into one of their devices, we believe they are more likely to introduce it into others. Additionally, once a customer introduces one of our lower functionality sensors into their platforms, we believe they will become more likely to adopt our more advanced integrated MotionTracking and audio devices.

29

Net Revenue

We derive our net revenue from sales of our Motion and Sound solutions. We primarily sell our products through our worldwide sales organization. We also sell our products through an indirect channel of distributors that fulfill orders from manufacturers of consumer electronics devices, original design manufacturers and contract manufacturers (collectively referred to as “intermediaries”). When we reference customers in this report, we are referring to the manufacturers of consumer electronics devices to whom these intermediaries sell our products.

	Three Months Ended				Six Months Ended
	September 27,		September 28,		September 27,		September 28,
	2015		2014		2015		2014
	(in thousands)
Net revenue	$	112,545	$	90,195	$	218,841	$	156,876

Net revenue increased by $22.4 million, or 25%, in the second quarter of fiscal 2016 and increased by $62.0 million, or 39%, in the first half of fiscal 2016 compared to the corresponding periods of fiscal 2015. The increases in net revenue were primarily due to higher volume shipments, partially offset by lower per unit average selling prices. Total unit shipments increased by 40% and 64% in the three and six months ended September 27, 2015, respectively. Our overall average unit selling price for the three and six months ended September 27, 2015 decreased 11% and 15%, respectively, as a result of the change in our product mix and declines in average selling prices. We expect a continued trend of declining unit average selling prices for our products during their life cycles.

For the three months ended September 27, 2015, Apple Inc., or Apple and Samsung Electronics Co., Ltd., or Samsung accounted for 34% and 19% of net revenue, respectively. For the six months ended September 27, 2015, Apple and Samsung accounted for 36% and 21% of total net revenue, respectively. For the three months ended September 28, 2014, Samsung and Apple accounted for 29% and 26% of total net revenue, respectively. For the six months ended September 28, 2014, Samsung, Apple and LG Electronics Inc. accounted for 30%, 17% and 10% of total net revenue, respectively.

Net Revenue by Target End Market

	Three Months Ended						Six Months Ended
	September 27,			September 28,			September 27,			September 28,
	2015			2014			2015			2014
	(in thousands)
Smartphone and tablet devices	$	69,856		$	71,712		$	146,876		$	125,023
% of net revenue		62	%		79	%		67	%		80	%
Optical image stabilization	$	20,775		$	7,015		$	37,525		$	15,160
% of net revenue		18	%		8	%		17	%		10	%
Gaming and other	$	21,914		$	11,468		$	34,440		$	16,693
% of net revenue		20	%		13	%		16	%		10	%

Net revenue growth for the smartphone and tablet end market in the three and six months ended September 27, 2015 reflects expansion of the smartphone portion of the handset market and increased adoption of our technologies in those devices during that time period. Net revenue growth and contribution to total net revenue for the optimal image stabilization end market in the three and six months ended September 27, 2015 primarily reflects increased adoption of our technology for optical image stabilization in smartphone camera modules. The net revenue growth and contribution to total net revenue for the gaming and other end market in the three and six months ended September 27, 2015 primarily reflects the growth of China market.

30

Net Revenue by Geographic Region

	Three Months Ended				Six Months Ended
	September 27,		September 28,		September 27,		September 28,
Region	2015		2014		2015		2014
	(in thousands)
United States	$	42,913	$	29,622	$	86,716	$	37,452
Korea		24,469		35,058		53,192		63,970
China		26,010		12,546		50,616		29,906
Japan		8,028		5,939		12,164		9,733
Taiwan		7,576		5,185		10,762		12,795
Rest of world		3,549		1,845		5,391		3,020
	$	112,545	$	90,195	$	218,841	$	156,876

We report revenue by geographic region based upon the location of the headquarters of our customers. We primarily sell our products directly to customers and distributors in Asia and North America. Sales into named Asia countries constituted 59% and 58% of our net revenue in the three and six months ended September 27, 2015, respectively, compared with 65% and 74% of our net revenue in the three and six months ended September 28, 2014, respectively. The net revenue increase in United States and China reflect growing demand for our products primarily by mobile device customers.

We believe that a substantial percentage of our net revenue will continue to come from sales to customers and contract manufacturers located in Asia, where most of the manufacturers of consumer electronics devices that use and may in the future use our products are located. As a result of this regional customer concentration, we may be subject to economic and political events and other developments that impact our customers in Asia. For more information, see the section titled “Risk Factors - Our business, financial condition and results of operations could be adversely affected by the political and economic conditions of the countries in which we conduct business”, referred to under Item 1A. of Part I in our Annual Report on Form 10-K filed on May 28, 2015 with the SEC.

Gross Profit and Gross Margin

Gross profit is the difference between net revenue and cost of revenue and gross margin is gross profit as a percentage of sales.

	Three Months Ended						Six Months Ended
	September 27,			September 28,			September 27,			September 28,
	2015			2014			2015			2014
	(in thousands)
Gross profit		46,571			31,341			91,402			62,517
% of net revenue		41	%		35	%		42	%		40	%

Gross profit increased by $15.2 million in the second quarter of fiscal 2016 and increased by $28.9 million in the first half of fiscal 2016 as compared to the corresponding periods of fiscal 2015. In the second quarter and in the first half of fiscal 2016, gross profit increased primarily due to an increase in unit sales of our products, partially offset by decreases in average selling price per unit sold for comparable products. The decline in average unit selling prices was partially offset by lower average unit costs resulting from improved manufacturing yields. Gross margin was negatively impacted by a $1.2 million net inventory charge during the second quarter of fiscal 2016, and a $2.0 million net inventory charge during the first half of fiscal 2016, Gross margin was negatively impacted by a $7.4 million inventory charge largely related to excess and obsolete inventories in the second quarter and first half of fiscal 2015.

Gross profit as a percentage of net revenue, or gross margin, increased primarily due to the $7.4 million inventory adjustment during the three and six months ended September 28, 2014.

We expect gross margins to fluctuate during future periods due to changes in product mix, average unit selling prices, manufacturing costs, manufacturing yields, amortization of acquired intangible assets, levels of inventory valuation and excess reserves recorded, if any, and levels of product demand.

Research and Development

Research and development expense primarily consists of personnel related expenses, intellectual property license costs, reference design development costs, development testing and evaluation costs, depreciation expense and allocated occupancy costs.

31

Research and development activities include the design of new products, refinement of existing products and processes and design of test methodologies, including hardware and software to ensure compliance with required specifications. All research and development costs are expensed as incurred. We expect our research and development expenses to increase, in absolute dollar terms, to expand our product offerings and enhance existing products.

	Three Months Ended						Six Months Ended
	September 27,			September 28,			September 27,			September 28,
	2015			2014			2015			2014
	(in thousands)
Research and development	$	24,991		$	21,593		$	45,246		$	41,001
% of net revenue		22	%		24	%		21	%		26	%

Research and development expense for three months ended September 27, 2015 increased by $3.4 million, or 16%, compared to the corresponding period last year. The increase was primarily attributable to a $2.6 million increase in employee compensation and benefits costs mainly due to an increase in headcount, a $0.6 million increase in third-party project and contractor costs associated with new product development, a $0.4 million increase in allocated infrastructure costs to support higher headcount, a $0.1 million increase in facility costs due to expansion of global facilities, a $0.3 million increase in engineering equipment costs and a $0.1 million increase in depreciation costs related to increased capital equipment during the three months ended September 27, 2015. Research and development expense for three months ended September 28, 2014 included $0.8 million write-off of in-process research and development costs. Research and development headcount increased to 310 at the end of September 27, 2015 from 278 at the end of September 28, 2014.

Research and development expense for six months ended September 27, 2015 increased by $4.2 million, or 10%, compared to the corresponding period last year. The increase was primarily attributable to a $6.3 million increase in employee compensation and benefits costs mainly due to an increase in headcount in part from our acquisitions of Movea and TPI, a $1.6 million increase in third party project and contractor costs associated with new product development, a $0.8 million increase in allocated infrastructure costs to support higher headcount, a $0.5 million increase in facility costs due to expansion of global facilities, a $0.4 million increase in engineering equipment costs and a $0.4 million increase in depreciation costs related to increased capital equipment. Offsetting these increases was a $5.3 million credit from contingent consideration adjustment (See Note 8). Research and development expense for six months ended September 28, 2014 included $0.8 million write-off of in-process research and development costs.

Selling, General and Administrative

Selling, general and administrative expense primarily consists of personnel related expenses, field application engineering support, travel costs, professional and consulting fees, legal fees, depreciation expense and allocated occupancy costs. We expect selling, general and administrative expenses to increase on an absolute basis in the future as we, hire personnel to expand our sales, marketing, finance, legal and other administrative personnel and pay the costs associated with litigation, if any.

	Three Months Ended						Six Months Ended
	September 27,			September 28,			September 27,			September 28,
	2015			2014			2015			2014
	(in thousands)
Selling, general and administrative	$	15,186		$	14,592		$	31,010		$	28,510
% of net revenue		13	%		16	%		14	%		18	%

Selling, general and administrative expense increased by $0.6 million, or 4%, in the three months ended September 27, 2015 compared to the corresponding period last year. The increase was primarily attributable to a $1.5 million increase in employee compensation and benefits costs mainly due to an increase in headcount and a $0.4 million increase in facility costs due to expansion of global facilities, offset partially by a decrease of $0.9 million in allocated infrastructure costs and a decrease of $0.3 million in outside expenses due primarily to legal costs related to the acquisition of Movea and TPI in the three month ended September 28, 2014. Selling, general and administrative headcount increased to 160 at the end of September 27, 2015 from 149 at the end of September 28, 2014.

Selling, general and administrative expense increased by $2.5 million, or 9%, in the six months ended September 27, 2015 compared to the corresponding period last year. The increase was primarily attributable to a $4.2 million increase in employee compensation and benefits costs mainly due to an increase in headcount, a $0.6 million increase in facility costs due to expansion of global facilities and a $0.3 million increase in depreciation costs related to increased capital equipment, offset partially by a decrease of $1.7 million in allocated infrastructure costs and a decrease of $0.8 million in outside expenses due primarily to legal costs related to the acquisition of Movea and TPI in the six month ended September 28, 2014.

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Legal Settlement Accrual

	Three Months Ended			Six Months Ended
	September 27, 2015			September 27, 2015
	(in thousands)
Legal settlement accrual	$	—		$	11,708
% of net revenue		—	%		5	%

During the six months ended September 27, 2015, Bosch and the Company resolved all assertions of potential infringement made by the other. The settlement has resulted in the Company incurring a charge of $11.7 million during the six months ended September 27, 2015.

Interest (Expense)

	Three Months Ended						Six Months Ended
	September 27,			September 28,			September 27,			September 28,
	2015			2014			2015			2014
	(in thousands)
Interest (expense)	$	(2,765	)	$	(2,620	)	$	(5,489	)	$	(5,204	)
% of net revenue		2	%		3	%		3	%		3	%

Interest (expense) increased by $0.1 million and $0.3 million in the three and six months ended September 27, 2015 compared to the corresponding period last year related to the Convertible Senior Notes issued in the third quarter of fiscal year 2014.

Other Income, Net

	Three Months Ended						Six Months Ended
	September 27,			September 28,			September 27,			September 28,
	2015			2014			2015			2014
	(in thousands)
Other income, net	$	104		$	1,199		$	165		$	1,380
% of net revenue		0	%		1	%		0	%		1	%

Other income, net decreased by $1.1 million, or 91%, for the three months and decreased by $1.2 million, or 88%, for the six months ended September 27, 2015 compared to the corresponding period of last year. The decreases in other income were primarily due to gain on equity investment in TPI of $0.9 million during three and six months ended September 28, 2014.

Income Tax Provision

	Three Months Ended						Six Months Ended
	September 27,			September 28,			September 27,			September 28,
	2015			2014			2015			2014
	(in thousands)
Income tax provision (benefit)	$	(1,960	)	$	603		$	(1,732	)	$	882
% income (loss) before income tax		(53	)%		(10	)%		92	%		(8	)%

In the three and six months ended September 27, 2015, we recorded an income tax (benefit) of ($2.0) million and ($1.7) million, respectively. In the three and six months ended September 28, 2014, we recorded an income tax provision of $0.6 million and $0.9 million respectively. Our estimated 2016 effective tax rate differs from the U.S. statutory rate primarily due to foreign tax differentials, a current year loss in the U.S., and was negatively affected by an increase in non-deductible stock option expense, and other deductible federal tax attributes.

Included in our gross unrecognized tax benefits balance of $24.8 million at September 27, 2015 are $22.4 million of tax positions which would affect income tax expense if recognized. As of September 27, 2015, approximately $2.4 million of unrecognized tax benefits would be offset by a change in valuation allowance. Due to the high degree of uncertainty regarding the settlement of these liabilities, we are unable to estimate the year in which the future cash flows may occur. As a result, these amounts are not included in the tables above.

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Over 90% of our revenues are derived from sales to customers located outside the U.S. A significant percentage of our pre-tax income in the three months ended September 27, 2015 and September 28, 2014 was generated internationally, primarily from our Cayman Island subsidiary, which is currently a zero tax jurisdiction. Since 2011, our Cayman Island subsidiary has procured the rights to manufacture and sell our products in non-US locations via an intercompany technology license arrangement with its U.S. parent company. In addition, the Company has not provided for U.S. federal income and foreign withholding taxes on undistributed earnings from its non-U.S. subsidiaries, as it is the practice and intention of the Company to reinvest the earnings of its non-U.S. subsidiaries in those operations. Our effective tax rate is highly dependent upon the geographic distribution of our worldwide earnings or losses, and the tax regulations in each geographic region. We expect that a large percentage of our consolidated pre-tax income will continue to be derived from, and reinvested in, our overseas operations. We anticipate that this pre-tax income will continue to be subject to foreign tax at significantly lower tax rates when compared to the United States federal statutory tax rate.

The Company had deferred tax assets related to Research and Development Credits and other tax attributes including accrued expenses and stock based compensation that can be used to offset taxable income in future periods and reduce our income taxes payable in those future periods. Realization of our deferred tax assets is dependent upon future federal, state and foreign taxable income. Many of those credit carryforwards will expire if they are not used within certain time periods. As of September 27, 2015, management determined that there is sufficient positive evidence to conclude that it is more likely than not that we will have sufficient taxable income in the future that will allow us to realize these DTAs. However, it is possible that some or all of these credits could ultimately expire unused, especially if our U.S. entity does not make a taxable profit, which has been limited mainly due to stock option deductions since the company went public. Therefore, unless we are able to generate sufficient taxable income from our U.S. operations, a substantial valuation allowance to reduce our U.S. DTAs may be required, which would materially increase our expenses in the period the allowance is recognized and materially adversely affect our results of operations and statement of financial condition. Our judgments regarding future profitability may change due to future market conditions, changes in U.S. or international tax laws and other factors. These changes, if any, may require possible material adjustments to these deferred tax assets, resulting in a reduction in net income or an increase in net loss in the period when such determinations are made.

The US Tax Court, on July 27, 2015, in Altera Corp. v. Commissioner, 145 T.C. No. 3 (2015), issued an opinion related to the portion of the Treasury regulations issued under IRC Section 482 requiring related-party participants in a cost-sharing arrangement to share stock-based compensation costs. A final decision has yet to be issued by the Tax Court due to other outstanding issues related to the case. At this time, the U.S. Department of the Treasury has not withdrawn the requirement to include stock-based compensation from its regulations. We have reviewed this case and its impact on the Company and concluded that no adjustment to the consolidated financial statements is appropriate at this time. We will continue to monitor ongoing developments and potential impacts to our consolidated financial statements.

Critical Accounting Policies and Estimates

Our condensed consolidated financial statements and the related notes included elsewhere in this Quarterly Report on Form 10-Q are prepared in accordance with accounting principles generally accepted in the United States. The preparation of these condensed consolidated financial statements requires us to make estimates and assumptions that affect the reported amounts of assets, liabilities, net revenue, costs, and expenses, and any related disclosures. We base our estimates on historical experience and on various other assumptions that we believe to be reasonable under the circumstances. Changes in accounting estimates are reasonably likely to occur from period to period. Accordingly, actual results could differ significantly from the estimates made by our management. We evaluate our estimates and assumptions on an ongoing basis. To the extent that there are material differences between these estimates and our actual results, our future financial statement presentation, financial condition results of operations and cash flows will be affected.

We believe that the assumptions and estimates associated with income taxes, inventory valuation, and stock-based compensation have the greatest potential impact on our condensed consolidated financial statements. Therefore, we consider these to be our critical accounting policies and estimates.

There have been no material changes to the our critical accounting policies and estimates as compared to the critical accounting policies and estimates described in our Annual Report on Form 10-K filed with the SEC on May 28, 2015.

Liquidity and Capital Resources

As of September 27, 2015, we had $273.4 million of cash, cash equivalents and investments. We believe our current cash, cash equivalents and investments will be sufficient to satisfy our liquidity requirements for the next 12 months. Our liquidity may be negatively impacted as a result of a decline in sales of our products due to a decline in our end markets, decrease in sales of our customers’ products in the market, or adoption of competitors’ products. If we resolve all assertions of potential infringement with a competitor, we are expected to make a payment of approximately $12 million during the quarter ending December 27, 2015. Additionally, $37.0 million of the $70.2 million of cash and cash equivalents were held by our foreign subsidiaries as of September 27, 2015. If these funds are needed for our operations in the United States, we would be required to accrue and pay U.S. taxes to repatriate these funds. However, our intent is to indefinitely reinvest these funds outside of the United States, and our current plans do not demonstrate a need to repatriate them to fund our U.S. operations.

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Our primary uses of cash are to fund operating expenses, purchases of inventory, the acquisition of property and equipment and to pursue strategic investments or acquisitions if opportunities arise. Cash used to fund operating expenses excludes the impact of non-cash items such as depreciation, amortization and stock-based compensation and is impacted by the timing of when we pay these expenses as reflected in the change in our outstanding accounts payable and accrued expenses.

Our primary sources of cash are cash receipts on accounts receivable from our shipment of products to customers and distributors. Aside from the growth in amounts billed to our customers, net cash collections of accounts receivable are impacted by the efficiency of our cash collections process, which can vary from period to period depending on the payment cycles of our major customers and distributors.

The change in cash and cash equivalents for the six months ended September 27, 2015 and September 28, 2014 was as follows:

	Six Months Ended
	September 27,			September 28,
	2015			2014
	(in thousands)
Net cash provided by (used in) operating activities	$	58,777		$	(2,749	)
Net cash provided by (used in) investing activities		(77,842	)		9,458
Net cash provided by financing activities		3,590			5,690
Net increase (decrease) in cash and cash equivalents	$	(15,475	)	$	12,399

Net Cash Provided by (Used in) Operating Activities

Net cash provided by operating activities for the six months ended September 27, 2015 of $58.8 million was primarily due to a change in operating assets and liabilities of $36.1 million and non-cash expenses of $22.8 million, partially offset by a net loss of $0.2 million.

The changes in our net operating assets and liabilities of $36.1 million were comprised of a net increase of $15.9 million in Accrued liabilities primarily due to the accrual for a legal settlement, a decrease of $13.4 million in Inventories, a net increase of $12.4 million in Accounts payable and a decrease of $2.1 million in Prepaid and other current assets, offset partially by an increase of $5.9 million in Accounts receivable and an increase of $1.8 million in Other assets. The non-cash expenses of $22.8 million consisted primarily of stock-based compensation of $17.7 million, depreciation and amortization of $10.7 million, non-cash interest expense of $4.0 million, partially offset by contingent consideration adjustment of $5.3 million and deferred income tax assets of $3.5 million.

Net cash used in operating activities for the six months ended September 28, 2014 of $2.7 million is primarily due to a net loss of $11.7 million and a net increase in operating assets and liabilities of $16.8 million, partially offset by non-cash expenses of $25.7 million. The net increase in operating assets and liabilities of $16.8 million consisted primarily of increases in Accounts receivable of $27.3 million, Inventories of $2.0 million and Other assets of $1.1 million, partially offset by increases in Accounts payable of $5.4 million and Accrued liabilities of $8.1 million. The increase in Accounts receivable is primarily attributable to an increase in net revenue. The non-cash expenses of $25.7 million consisted primarily of depreciation and amortization of $7.2 million and stock-based compensation of $14.6 million and non-cash interest expense of $3.7 million.

Net Cash Provided By (Used In) Investing Activities

Net cash used in investing activities in the six months ended September 27, 2015 of $77.8 million primarily reflected the purchase of available-for-sale investments of $145.7 million and the purchase of property and equipment of $4.0 million, partially offset by the sale and maturity of available-for-sale investments of $71.8 million.

Net cash provided by investing activities in the six months ended September 28, 2014 of $9.5 million primarily from the sale and maturity of available-for-sale investments of $98.5 million, partially offset by cash paid for acquisitions of $71.4 million (net of cash acquired), and purchase of property and equipment of $17.6 million.

Net Cash Provided by Financing Activities

Net cash provided by financing activities in the six months ended September 27, 2015 of $3.6 million resulted primarily from proceeds from the issuance of common stock.

35

Net cash provided by financing activities in the six months ended September 28, 2014 of $5.7 million resulted primarily from the proceeds from the issuance of common stock on stock options exercises and ESPP purchases.

Off Balance Sheet Arrangements

As part of our ongoing business, we do not participate in transactions that generate relationships with unconsolidated entities of financial partnerships, such as entities often referred to as structured finance or special purpose entities, or SPEs, which would have been established for the purpose of facilitating off-balance sheet arrangements or other contractually narrow or limited purposes. As of September 27, 2015, we were not involved in any unconsolidated SPE transactions

Warranties and Indemnification

In connection with the sale of products in the ordinary course of business, we often make representations affirming, among other things, that our products do not infringe on the intellectual property rights of others, and agree to indemnify customers against third-party claims for such infringement. Further, our certificate of incorporation and bylaws require us to indemnify our officers and directors against any action that may arise out of their services in that capacity. We have not been subject to any material liabilities under such provisions and therefore believe that our exposure for these indemnification obligations is minimal. Accordingly, we have no liabilities recorded for these indemnity agreements as of September 27, 2015.

Contractual Obligations

The following table summarizes our outstanding contractual obligations as of September 27, 2015:

	Payments Due by Period
			Less Than		1-3		3-5		More Than
	Total		1 Year		Years		Years		5 Years
	(in thousands)
Convertible senior notes obligations	$	175,000	$	—	$	—	$	175,000	$	—
Interest on convertible senior notes obligations		9,471		2,878		6,108		485
Operating lease obligations		27,549		4,867		12,385		9,169		1,128
Purchase obligations		55,665		55,665		—		—		—
Total contractual obligations	$	267,685	$	63,410	$	18,493	$	184,654	$	1,128

Convertible senior notes and interest on convertible senior notes obligations relate to the convertible senior notes issued in November 2013. See Note 5 to the Consolidated Financial Statements included elsewhere in this Annual Report on Form 10-K for a full description of the convertible senior notes.

Operating lease obligations consist of contractual obligations from agreements for non-cancelable office space, net of future minimum lease income. Minimum sublease income from the third parties was approximately $0.4 million and 0.7 million for the three and six months ended September 27, 2015. The failure of the third party to comply with its obligations under the subleases, we remain contractually obligated, as primary lessee, under the lease.

Purchase obligations consist of the minimum purchase commitments made to contract manufacturers.

Included in our gross unrecognized tax benefits balance of $24.8 million at September 27, 2015 are $22.4 million of tax positions which would affect income tax expense if recognized. As of September 27, 2015, approximately $2.4 million of unrecognized tax benefits would be offset by a change in valuation allowance. Due to the high degree of uncertainty regarding the settlement of these liabilities, we are unable to estimate the year in which the future cash flows may occur. As a result, these amounts are not included in the tables above.

Recent Accounting Pronouncements

See Item 1 of Part I, Financial Statements—Note 1— Organization and Summary of Significant Accounting Policies.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

For quantitative and qualitative disclosures about market risk affecting InvenSense, see “Quantitative and Qualitative Disclosures About Market Risk” in Item 7A of Part II of our Annual Report on Form 10-K for the fiscal year ended March 29, 2015. Our exposure to market risk has not changed materially since March 29, 2015.

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ITEM 4. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

Our management, with the participation of our principal executive officer and principal financial officer, has evaluated the effectiveness of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”)), as of the end of the period covered by this Quarterly Report on Form 10-Q. Based on such evaluation, our principal executive officer and principal financial officer have concluded that as of such date, our disclosure controls and procedures were effective.

Changes in Internal Control

There were no changes in our internal control over financial reporting identified in management’s evaluation pursuant to Rules 13a-15(d) or 15d-15(d) of the Exchange Act during the period covered by this Quarterly Report on Form 10-Q that materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Inherent Limitations of Internal Controls

Our management, including our Chief Executive Officer and Chief Financial Officer, does not expect that our disclosure controls and procedures or our internal controls will prevent or detect all errors and all fraud. A control system, no matter how well designed and operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met. Because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that all control issues and instances of fraud, if any, within the Company have been detected. These inherent limitations include the realities that judgments in decision-making can be faulty, and that breakdowns can occur because of a simple error or mistake. Additionally, controls can be circumvented by the individual acts of some persons, by collusion of two or more people, or by management override of the control. The design of any system of controls also is based in part upon certain assumptions about the likelihood of future events, and there can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions. Over time, controls may become inadequate because of changes in conditions, or the degree of compliance with the policies or procedures may deteriorate. Because of the inherent limitations in a cost-effective control system, misstatements due to error or fraud may occur and not be detected.

37

PART II. OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

See Item 1 of Part I, Financial Statements—Note 4— Commitments and Contingencies.

ITEM 1A. RISK FACTORS

Our operations and financial results are subject to various risks and uncertainties, which could adversely affect our business, financial condition, results of operations, cash flows, and the trading price of our common stock. The risks facing our business have not changed substantively from those discussed in our Annual Report on Form 10-K for the fiscal year ended March 29, 2015.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

Sales of Unregistered Securities

None

ITEM 6. EXHIBITS

See the Exhibit Index immediately following the signature page to this Quarterly Report on Form 10-Q, which is incorporated by reference here.

38

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

Dated: October 29, 2015	INVENSENSE, INC.
	By:	/s/ Mark P. Dentinger
		Mark P. Dentinger
		Chief Financial Officer (Principal Financial Officer and Accounting Officer)

39

INDEX TO EXHIBITS

Exhibit Number	Description
10.1	InvenSense, Inc. 2013 Employee Stock Purchase Plan, as amended (incorporated by reference to Exhibit 10.1 filed by the Company Form 8-K on May 9, 2015).
31.1	Certification of Principal Executive Officer Required Under Rule 13a-14(a) and 15d-14(a) of the Securities Exchange Act of 1934, as amended.
31.2	Certification of Principal Financial Officer Required Under Rule 13a-14(a) and 15d-14(a) of the Securities Exchange Act of 1934, as amended.
32.1	Certification of Principal Executive Officer and Principal Financial Officer Required Under Rule 13a-14(b) of the Securities Exchange Act of 1934, as amended, and 18 U.S.C. §1350.
101	Interactive Data Files Pursuant to Rule 405 of Regulation S-T: (i) Condensed Consolidated Balance Sheets as of September 27, 2015 and March 29, 2015, (ii) Condensed Consolidated Statements of Operations for the three and six months ended September 27, 2015 and September 28, 2014, (iii) Condensed Consolidated Statements of Comprehensive loss for three and six months ended September 27, 2015 and September 28, 2014, (iv) Condensed Consolidated Statements of Cash Flows for the six months ended September 27, 2015 and September 28, 2014, and (v) Notes to Condensed Consolidated Financial Statements.

40

EX-31.1

Exhibit 31.1

I, Behrooz Abdi, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of InvenSense, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a–15(e) and 15d–15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: October 29, 2015

/s/ Behrooz Abdi

Behrooz Abdi

Chief Executive Officer and Director

(Principal Executive Officer)

EX-31.2

Exhibit 31.2

I, Mark P. Dentinger, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of InvenSense, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a–15(e) and 15d–15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: October 29, 2015

/s/ Mark P. Dentinger

Mark P. Dentinger

Chief Financial Officer

(Principal Financial and Principal Accounting Officer)

EX-32.1

Exhibit 32.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER

PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I, Behrooz Abdi, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Quarterly Report of InvenSense, Inc. on Form 10-Q for the fiscal quarter ended September 27, 2015 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that information contained in such Quarterly Report on Form 10-Q fairly presents in all material respects the financial condition and results of operations of InvenSense, Inc.

Date: October 29, 2015

By:	/s/ Behrooz Abdi
Name:	Behrooz Abdi
Title:	Chief Executive Officer and Director
	(Principal Executive Officer)

I, Mark P. Dentinger, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Quarterly Report of InvenSense, Inc. on Form 10-Q for the fiscal quarter ended September 27, 2015 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that information contained in such Quarterly Report on Form 10-Q fairly presents in all material respects the financial condition and results of operations of InvenSense, Inc.

Date: October 29, 2015

By:	/s/ Mark P. Dentinger
Name:	Mark P. Dentinger
Title:	Chief Financial Officer (Principal Financial and Principal Accounting Officer)

This certification accompanies this Report on Form 10-Q pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and shall not be deemed filed by the Company for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). Such certification will not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except to the extent that the Company specifically incorporates it by reference.

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Balance Sheet Details - Accrued Liabilities (Detail) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Sep. 27, 2015	Mar. 29, 2015
Accrued Liabilities [Line Items]
Contingent consideration, current portion	$ 3,817	$ 6,364
Payroll-related expenses	8,367	7,197
Bonuses	4,051	5,352
Legal fees	12,314	921
Deferred revenue, current	1,663	1,584
Income tax payable	547	311
Other tax payable	768	768
Acquisition-related payable	1,380	1,380
Customer deposit	1,796	900
Other accrued liabilities	7,818	5,962
Total accrued liabilities	43,768	31,991
Convertible Senior Notes [Member]
Accrued Liabilities [Line Items]
Accrued contractual coupon interest payable on convertible senior notes	$ 1,247	$ 1,252

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Acquisition - Additional Information (Detail) - USD ($) $ in Thousands			6 Months Ended	12 Months Ended
	Aug. 29, 2014	Jul. 22, 2014	Sep. 27, 2015	Mar. 29, 2015
Business Acquisition [Line Items]
Business acquisition, additional contingent cash payment			$ 3,817	$ 6,364
Difference between the contractual amount and the fair value of contingent consideration			$ (5,307)
Significant Other Unobservable Inputs Level 3 [Member]
Business Acquisition [Line Items]
Purchase price assumed in long-term debt		$ 2,600
Movea S.A [Member]
Business Acquisition [Line Items]
Business acquisition, effective date			Jul. 22, 2014
Percentage of equity interest acquired			100.00%
Cash consideration		60,900
Business acquisition, additional contingent cash payment		13,000
Business acquisition, contingent cash payment		8,400
Reason for change in fair value			The decline in fair value was the result of a reduction in the probability of a design win milestone associated with the Movea, S.A., (“Movea”) acquisition from 50% to 0%.
Movea S.A [Member] | Accrued Liabilities [Member]
Business Acquisition [Line Items]
Business acquisition, contingent cash payment		8,400
Movea S.A [Member] | Research and Development [Member]
Business Acquisition [Line Items]
Difference between the contractual amount and the fair value of contingent consideration			$ 5,000
Movea S.A [Member] | Developed Technology [Member]
Business Acquisition [Line Items]
Estimated useful life			5 years
Movea S.A [Member] | Design win [Member]
Business Acquisition [Line Items]
Business acquisition, additional contingent cash payment		8,000
Movea S.A [Member] | Design win [Member] | Scenario, Actual [Member]
Business Acquisition [Line Items]
Percentage of equity interest acquired			50.00%
Movea S.A [Member] | Design win [Member] | Scenario, Adjustment [Member]
Business Acquisition [Line Items]
Percentage of equity interest acquired			0.00%
Movea S.A [Member] | Design win [Member] | Research and Development [Member]
Business Acquisition [Line Items]
Difference between the contractual amount and the fair value of contingent consideration			$ (4,000)
Movea S.A [Member] | Product Development [Member]
Business Acquisition [Line Items]
Business acquisition, additional contingent cash payment		$ 5,000	$ 5,000
Trusted Positioning, Inc. [Member]
Business Acquisition [Line Items]
Business acquisition, effective date			Aug. 29, 2014
Cash consideration	$ 11,379
Business acquisition, contingent cash payment	7,634
Difference between the contractual amount and the fair value of contingent consideration			$ (1,300)
Reason for change in fair value			The decline in fair value was the result of a reduction in the probability of a design win associated with the TPI acquisition from 50% to 0%.
Fair value of investments	$ 1,215		$ 300
Percentage of common stock acquired	4.57%
Purchase consideration remaining outstanding common stock	$ 25,931
Number of common shares issued	236,000
Issuance of common stock	$ 5,703
Equity interest percentage	100.00%
Non-cash gain on investment in acquiree	$ 900
Trusted Positioning, Inc. [Member] | Accrued Liabilities [Member]
Business Acquisition [Line Items]
Business acquisition, contingent cash payment	4,900
Trusted Positioning, Inc. [Member] | Research and Development [Member]
Business Acquisition [Line Items]
Difference between the contractual amount and the fair value of contingent consideration				3,000
Trusted Positioning, Inc. [Member] | Other long-term liabilities [Member]
Business Acquisition [Line Items]
Business acquisition, contingent cash payment	2,700
Trusted Positioning, Inc. [Member] | Developed Technology [Member]
Business Acquisition [Line Items]
Estimated useful life			5 years
Trusted Positioning, Inc. [Member] | Design win [Member]
Business Acquisition [Line Items]
Business acquisition, additional contingent cash payment	5,000
Trusted Positioning, Inc. [Member] | Design win [Member] | Scenario, Actual [Member]
Business Acquisition [Line Items]
Percentage of equity interest acquired			50.00%
Trusted Positioning, Inc. [Member] | Design win [Member] | Scenario, Adjustment [Member]
Business Acquisition [Line Items]
Percentage of equity interest acquired			0.00%
Trusted Positioning, Inc. [Member] | Design win [Member] | Research and Development [Member]
Business Acquisition [Line Items]
Difference between the contractual amount and the fair value of contingent consideration			$ (2,400)
Trusted Positioning, Inc. [Member] | Development [Member]
Business Acquisition [Line Items]
Business acquisition, additional contingent cash payment	3,000			$ 3,000
Trusted Positioning, Inc. [Member] | Development of cloud [Member]
Business Acquisition [Line Items]
Business acquisition, additional contingent cash payment	2,000
Trusted Positioning, Inc. [Member] | Development of cloud [Member] | Research and Development [Member]
Business Acquisition [Line Items]
Difference between the contractual amount and the fair value of contingent consideration			$ 1,100
Trusted Positioning, Inc. [Member] | Deployment of cloud [Member]
Business Acquisition [Line Items]
Business acquisition, additional contingent cash payment	$ 2,000

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Stockholders' Equity - Stock Option Activities (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	6 Months Ended	12 Months Ended
	Sep. 27, 2015	Mar. 29, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Options Issued and Outstanding, Beginning Balance	8,307
Options Issued and Outstanding, Options granted	1,606
Options Issued and Outstanding, Options exercised	(361)
Options Issued and Outstanding, Options canceled	(344)
Options Issued and Outstanding, Ending Balance	9,208	8,307
Options Issued and Outstanding, Vested and expected to vest	8,335
Options Issued and Outstanding, Vested	4,210
Weighted-Average Exercise Price, Beginning Balance	$ 12.99
Weighted-Average Exercise Price, Options granted	14.72
Weighted-Average Exercise Price, Options exercised	6.67
Weighted-Average Exercise Price, Options canceled	13.71
Weighted-Average Exercise Price, Ending Balance	13.51	$ 12.99
Weighted-Average Exercise Price, Vested and expected to vest	13.24
Weighted-Average Exercise Price, Vested	$ 11.17
Weighted-Average Remaining Contractual Term (In Years), Balance	7 years 7 months 2 days	7 years 7 months 6 days
Weighted-Average Remaining Contractual Term (In Years), Vested and expected to vest	7 years 5 months 16 days
Weighted-Average Remaining Contractual Term (In Years), Vested	6 years 6 months 7 days
Aggregate Intrinsic Value, Beginning Balance	$ 29,817
Aggregate Intrinsic Value, Ending Balance	5,271	$ 29,817
Aggregate Intrinsic Value, Vested and expected to vest	5,268
Aggregate Intrinsic Value, Vested	$ 5,193

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Acquisition - Summary of Purchase Price of Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Thousands			6 Months Ended
	Aug. 29, 2014	Jul. 22, 2014	Sep. 27, 2015	Mar. 29, 2015
Allocation of purchase price:
Goodwill			$ 139,175	$ 139,175
Movea S.A [Member]
Business Acquisition [Line Items]
Cash consideration		$ 60,900
Contingent consideration		8,400
Purchase consideration		69,300
Allocation of purchase price:
Current assets		3,082
Fixed assets		209
Other non-current assets		592
Goodwill		68,330
Current liabilities		(5,016)
Long-term liabilities		(5,097)
Total preliminary purchase price		69,300
Movea S.A [Member] | Developed Technology [Member]
Allocation of purchase price:
Intangible assets		$ 7,200	7,200
Trusted Positioning, Inc. [Member]
Business Acquisition [Line Items]
Cash consideration	$ 11,379
Issuance of common stock	5,703
Contingent consideration	7,634
Fair value of previously held 4.57% equity interest	1,215		300
Purchase Consideration including equity interest previously held	25,931
Allocation of purchase price:
Current assets	392
Fixed assets	50
Other non-current assets	546
Goodwill	19,893
Current liabilities	(1,247)
Long-term liabilities	(2,303)
Total preliminary purchase price	25,931
Trusted Positioning, Inc. [Member] | Developed Technology [Member]
Allocation of purchase price:
Intangible assets	$ 8,600		$ 8,600

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Convertible Senior Notes - Schedule of Aggregate Future Principal Debt Maturities (Detail) - USD ($) $ in Thousands	Sep. 27, 2015	Mar. 29, 2015
Debt Disclosure [Abstract]
2016-2019	$ 175,000
Total	$ 175,000	$ 175,000

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Cash Equivalents and Available-for-Sale Investments - Summary of Changes in Fair Value of Company's Contingent Consideration Categorized as Level 3 (Detail) $ in Thousands	6 Months Ended
	Sep. 27, 2015 USD ($)
Fair Value Disclosures [Abstract]
Beginning balance	$ 9,124
Add: Contingent consideration in connection with acquisitions	0
Payments made on contingent liabilities	0
Change in fair value and other	(5,307)
Ending balance	$ 3,817

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Acquisition - Summary of Purchase Price of Assets Acquired and Liabilities Assumed (Parenthetical) (Detail)	Aug. 29, 2014
Trusted Positioning, Inc. [Member]
Business Acquisition [Line Items]
Percentage of common stock acquired	4.57%

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Organization and Summary of Significant Accounting Policies - Additional Information (Detail)	3 Months Ended			6 Months Ended		12 Months Ended
	Sep. 27, 2015 Customer	Dec. 28, 2014 USD ($)	Sep. 28, 2014 Customer	Sep. 27, 2015 Customer Segment Distributor	Sep. 28, 2014 Customer	Mar. 29, 2015 Customer Distributor
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Incorporation month and year				2003-06
Goodwill impairment | $		$ 0
Period of Company's warranty agreements				1 year
Number of operating segments | Segment				1
Accounts Receivable [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of major distributors | Distributor				1		1
Number of major customers				1		1
Accounts Receivable [Member] | Credit Concentration Risk [Member] | Distributor [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Percentage of concentration risk				49.00%		38.00%
Accounts Receivable [Member] | Credit Concentration Risk [Member] | Customer [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Percentage of concentration risk				20.00%		26.00%
Net Revenue [Member] | Customer Concentration Risk [Member] | Customer One [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Percentage of concentration risk	34.00%		29.00%	36.00%	30.00%
Number of major customers	1		1	1	1
Net Revenue [Member] | Customer Concentration Risk [Member] | Customer Two [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Percentage of concentration risk	19.00%		26.00%	21.00%	17.00%
Number of major customers	1		1	1	1
Net Revenue [Member] | Customer Concentration Risk [Member] | Customer Three [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Percentage of concentration risk					10.00%
Number of major customers					1

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Stockholders' Equity - Restricted Stock Unit and Restricted Stock Activity (Detail) - Restricted Stock Units and Restricted Stock [Member] - $ / shares shares in Thousands	3 Months Ended		6 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares Unvested, Beginning period			4,030
Shares, Granted			1,060
Shares, Released			(606)
Shares, Forfeited			(367)
Shares Unvested, Ending period	4,117		4,117
Weighted average grant date fair value per share, Unvested Beginning period			$ 17.75
Weighted average grant date fair value per share, Granted	$ 11.77	$ 24.18	14.20	$ 21.84
Weighted average grant date fair value per share, Released			17.26
Weighted average grant date fair value per share, Forfeited			17.39
Weighted average grant date fair value per share, Unvested Ending period	$ 16.94		$ 16.94

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Commitments and Contingencies - Future Minimum Lease Payments, Net of Future Minimum Lease Income under Operating Leases (Detail) $ in Thousands	Sep. 27, 2015 USD ($)
Leases [Abstract]
2016 (remainder)	$ 2,456
2017	5,172
2018	6,357
2019	6,544
2020	5,197
Beyond	1,823
Total	$ 27,549

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Balance Sheet Details - Property and Equipment (Detail) - USD ($) $ in Thousands	Sep. 27, 2015	Mar. 29, 2015
Property, Plant and Equipment [Line Items]
Subtotal	$ 66,831	$ 63,134
Accumulated depreciation and amortization	(27,740)	(21,285)
Property and equipment-net	39,091	41,849
Production and Lab Equipment [Member]
Property, Plant and Equipment [Line Items]
Subtotal	48,717	47,107
Computer Equipment and Software [Member]
Property, Plant and Equipment [Line Items]
Subtotal	7,328	6,044
Equipment Under Construction [Member]
Property, Plant and Equipment [Line Items]
Subtotal	2,664	2,820
Leasehold Improvements and Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Subtotal	$ 8,122	$ 7,163

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Stockholders' Equity - Summary of Total Stock-Based Compensation Costs (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	$ 9,048	$ 7,002	$ 17,683	$ 14,637
Costs of Revenue [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	584	654	1,184	1,311
Research and Development [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	4,002	3,197	7,838	6,715
Selling, General and Administrative [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	$ 4,462	$ 3,151	$ 8,661	$ 6,611

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Stockholders' Equity - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended	3 Months Ended		6 Months Ended
	Sep. 09, 2015	Jul. 31, 2011	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014	Mar. 29, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonqualified stock options may be granted at an exercise price, not less than					100.00%
Common stock, for an exercise price of not less than					110.00%
Stock options expiration period					10 years
Aggregate intrinsic value of the stock options exercised			$ 400	$ 11,200	$ 2,600	$ 14,100
Unamortized stock-based compensation expense, reduced for estimated forfeitures and related to non-vested options			$ 19,900		$ 19,900
Weighted average fair value of stock options granted per share			$ 5.33	$ 8.71	$ 6.06	$ 7.33
Shares reserved for issuance to employees			34,437,000		34,437,000		30,862,000
Compensation expense recognized			$ 9,048	$ 7,002	$ 17,683	$ 14,637
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Company's common stock for owners, more than					10.00%
2011 Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock outstanding percentage		4.00%
Increase and decrease of common stock		3,600,000
2013 Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum employee subscription percentage			10.00%		10.00%
Employee Stock Purchase Plan description					The purchase price of stock under the ESPP is equal to 85% of the lower of (i) the fair market value of the Company's common stock on the first day of each offering period, or (ii) the fair market value of the Company's common stock on the purchase date (as defined in the ESPP). Each offering period consists of one purchase period of approximately six months duration.
Purchase price of stock under the Employee Stock Purchase Plan					85.00%
Shares purchased					289,000
Shares reserved for issuance to employees	1,400,000
Increase in number common stock shares reserved for future issuance	1,000,000
Compensation expense recognized			$ 200	$ 200	$ 500	$ 400
Employee Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options vesting period					4 years
Unrecognized expense of stock option, period for recognition					2 years 6 months
Restricted Stock Units and Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized expense of stock option, period for recognition					2 years 9 months 18 days
Total unrecognized compensation cost			$ 46,200		$ 46,200
Weighted-average grant-date fair value per share			$ 11.77	$ 24.18	$ 14.20	$ 21.84

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Balance Sheet Details

6 Months Ended

Sep. 27, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Balance Sheet Details

3. Balance Sheet Details

Inventories

Inventories at September 27, 2015 and March 29, 2015 consist of the following:

	September 27, 2015		March 29, 2015
	(in thousands)
Work in process	$	23,941	$	49,146
Finished goods		37,743		25,959
Total inventories	$	61,684	$	75,105

Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets at September 27, 2015 and March 29, 2015 consist of the following:

	September 27, 2015		March 29, 2015
	(in thousands)
Deferred tax assets	$	5,099	$	5,127
Prepaid expenses		4,175		4,280
Income tax receivable		89		1,398
Other receivables		1,707		2,675
Other current assets		2,073		1,470
Total prepaid expenses and other current assets	$	13,143	$	14,950

Property and Equipment

Property and equipment at September 27, 2015 and March 29, 2015 consist of the following:

	September 27, 2015			March 29, 2015
	(in thousands)
Production and lab equipment	$	48,717		$	47,107
Computer equipment and software		7,328			6,044
Equipment under construction		2,664			2,820
Leasehold improvements and furniture and fixtures		8,122			7,163
Subtotal		66,831			63,134
Accumulated depreciation and amortization		(27,740	)		(21,285	)
Property and equipment—net	$	39,091		$	41,849

Depreciation expense for the three and six months ended September 27, 2015 was $3.2 million and $6.2 million, respectively. Depreciation expense for the three and six months ended September 28, 2014 was $2.6 million and $4.3 million, respectively. Equipment under construction consists primarily of production and lab equipment. Equipment under construction is not subject to depreciation until it is available for its intended use. All of the equipment under construction is expected to be completed and placed in service by the end of fiscal 2016.

Accrued Liabilities

Accrued liabilities at September 27, 2015 and March 29, 2015 consist of the following:

	September 27, 2015		March 29, 2015
	(in thousands)
Contingent consideration, current portion	$	3,817	$	6,364
Payroll-related expenses		8,367		7,197
Bonuses		4,051		5,352
Legal fees		12,314		921
Accrued contractual coupon interest payable on convertible senior notes		1,247		1,252
Deferred revenue		1,663		1,584
Income tax payable		547		311
Other tax payable		768		768
Acquisition-related payable		1,380		1,380
Customer deposit		1,796		900
Other accrued liabilities		7,818		5,962
Total accrued liabilities	$	43,768	$	31,991

Other Long-term Liabilities

Other long-term liabilities at September 27, 2015 and March 29, 2015 consist of the following:

	September 27, 2015		March 29, 2015
	(in thousands)
Long-term tax payable	$	14,223	$	11,918
Deferred tax liabilities		3,481		3,936
Deferred revenue		3,000		3,400
Deferred rent		3,740		3,630
Contingent consideration, noncurrent portion		—		2,760
Long-term debt		2,502		2,472
Other long-term liabilities		251		136
Total accrued liabilities	$	27,197	$	28,252

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Convertible Senior Notes - Additional Information (Detail) $ / shares in Units, shares in Millions			6 Months Ended
	Nov. 30, 2013 USD ($)	Nov. 07, 2013 USD ($) Hedge_Strategies $ / shares shares	Sep. 27, 2015 USD ($) Days $ / shares	Mar. 29, 2015 USD ($)
Debt Instrument [Line Items]
Convertible senior notes, issuance date			2013-11
Convertible senior notes, principal amount			$ 175,000,000	$ 175,000,000
Convertible senior notes, maturity date			Nov. 01, 2018
Convertible senior notes, interest payment terms			The Notes pay interest in cash semi-annually (May and November) at a rate of 1.75% per annum.
Net proceeds after issuance costs	$ 169,300,000
Convertible senior notes, terms of conversion			On or after August 1, 2018 until the maturity date, the Notes may be converted at the option of the holders. Holders may convert the Notes at their option prior to August 1, 2018 only under the following circumstances: 1) During any calendar quarter and only during such calendar quarter, if the last reported sale price of the Company’s common stock for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on the last trading day of the immediately preceding calendar quarter is greater than or equal to 130% of the conversion price of $21.89 on each applicable trading day; 2) During the five business day period after any five consecutive trading day period in which the “trading price” per $1,000 principal amount of notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price of our common stock and the conversion rate on each such trading day; or 3) Upon the occurrence of specified corporate events, including if there is a fundamental change.
Convertible senior notes, conversion date			Aug. 01, 2018
Convertible senior notes, conversion price | $ / shares			$ 21.89
Convertible senior notes, face amount per note			$ 1,000
Convertible senior notes, conversion ratio			45.683
Notes issued			$ 135,700,000
Convertible senior notes, debt discount			$ 39,300,000
Non-convertible debt borrowing rate			7.30%
Convertible senior notes, remaining amortization period			3 years 1 month 6 days
Convertible senior notes, effective interest rate description			The effective interest rate of the Notes is 7.84% per annum (1.75% coupon rate plus 6.09% of non-cash accretion expense).
Convertible senior notes, effective interest rate			7.84%
Convertible Notes Hedges Purchased [Member]
Debt Instrument [Line Items]
Call options | shares		8.0
Common stock at exercise price | $ / shares		$ 21.89
Conversion of shares in convertible note | Hedge_Strategies		0.045683
Aggregate price for convertible note hedge		$ 39,100,000
Significant Other Observable Inputs Level 2 [Member]
Debt Instrument [Line Items]
Fair value of convertible notes			$ 158,100,000
Call Options [Member]
Debt Instrument [Line Items]
Call options | shares		8.0
Common stock at exercise price | $ / shares		$ 28.66
Proceeds from sale of warrants		$ 25,600,000
Convertible Senior Notes Due 2018 [Member]
Debt Instrument [Line Items]
Convertible senior notes, principal amount	$ 175,000,000
Convertible senior notes, Stated interest rate	1.75%		1.75%
Equity Component [Member]
Debt Instrument [Line Items]
Convertible senior notes, issuance cost			$ 2,500,000
Debt Discount [Member]
Debt Instrument [Line Items]
Convertible senior notes, issuance cost			3,000,000
Other Non-current Assets [Member]
Debt Instrument [Line Items]
Convertible senior notes, issuance cost			$ 250,000
Coupon Rate Plus [Member]
Debt Instrument [Line Items]
Convertible senior notes, effective interest rate			1.75%
Non-Cash Accretion Expense [Member]
Debt Instrument [Line Items]
Convertible senior notes, effective interest rate			6.09%
Condition One [Member]
Debt Instrument [Line Items]
Threshold trading days | Days			20
Threshold consecutive trading days			30 days
Threshold percentage of conversion price			130.00%
Convertible senior notes, conversion price | $ / shares			$ 21.89
Second Condition [Member]
Debt Instrument [Line Items]
Threshold trading days | Days			5
Threshold consecutive trading days			5 days
Threshold percentage of conversion price			98.00%
Convertible senior notes, face amount per note			$ 1,000

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Organization and Summary of Significant Accounting Policies - Property and Equipment by Country (Detail) - USD ($) $ in Thousands	Sep. 27, 2015	Mar. 29, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	$ 39,091	$ 41,849
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	9,542	9,442
Taiwan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	27,915	31,334
Other [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	$ 1,634	$ 1,073

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Organization and Summary of Significant Accounting Policies - Securities Excluded from Computation of Diluted Net Loss Per Share (Detail) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total antidilutive securities	10,371	12,325	13,263	12,172
Employee Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total antidilutive securities	7,382	8,665	9,059	8,635
Unvested Restricted Stock Units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total antidilutive securities	2,989	3,660	4,204	3,537

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Acquisition - Summary of Estimated Fair Value and Useful Lives of Intangible Assets (Detail) - Developed Technology [Member] - USD ($) $ in Thousands	6 Months Ended
	Sep. 27, 2015	Aug. 29, 2014	Jul. 22, 2014
Movea S.A [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated Fair Value	$ 7,200		$ 7,200
Estimated useful life	5 years
Trusted Positioning, Inc. [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated Fair Value	$ 8,600	$ 8,600
Estimated useful life	5 years

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Convertible Senior Notes - Summary of Principal Amounts and Related Unamortized Discount on Notes (Detail) - USD ($) $ in Thousands	Sep. 27, 2015	Mar. 29, 2015
Debt Disclosure [Abstract]
Principal amount of the Notes	$ 175,000	$ 175,000
Unamortized discount on the Notes	28,233	32,190
Net carrying value	$ 146,767	$ 142,810

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Organization and Summary of Significant Accounting Policies - Net Revenue from Unaffiliated Customers by Country (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues from unaffiliated customers	$ 112,545	$ 90,195	$ 218,841	$ 156,876
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues from unaffiliated customers	42,913	29,622	86,716	37,452
Korea [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues from unaffiliated customers	24,469	35,058	53,192	63,970
China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues from unaffiliated customers	26,010	12,546	50,616	29,906
Japan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues from unaffiliated customers	8,028	5,939	12,164	9,733
Taiwan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues from unaffiliated customers	7,576	5,185	10,762	12,795
Other [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues from unaffiliated customers	$ 3,549	$ 1,845	$ 5,391	$ 3,020

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Cash Equivalents and Available-for-Sale Investments - Additional Information (Detail) - USD ($)	6 Months Ended	12 Months Ended
	Sep. 27, 2015	Mar. 29, 2015	Sep. 28, 2014	Mar. 30, 2014
Cash and Cash Equivalents [Line Items]
Cash	$ 45,400,000	$ 61,600,000
Cash equivalents		24,000,000
Cash and cash equivalents	70,162,000	85,637,000	$ 38,424,000	$ 26,025,000
Short-term investments available-for-sale	203,200,000	129,900,000
Transfers of assets measured at fair value between Level 1 and Level 2	0	0
Change in fair value of contingent consideration	(5,307,000)
Money Market Funds [Member]
Cash and Cash Equivalents [Line Items]
Cash equivalents	24,800,000
Foreign Subsidiaries [Member]
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	$ 37,000,000	47,700,000
Movea S.A [Member] | Design win [Member] | Maximum [Member]
Cash and Cash Equivalents [Line Items]
Percentage of reduction in probability of milestone	50.00%
Movea S.A [Member] | Design win [Member] | Minimum [Member]
Cash and Cash Equivalents [Line Items]
Percentage of reduction in probability of milestone	0.00%
Movea S.A [Member] | Research and Development [Member]
Cash and Cash Equivalents [Line Items]
Change in fair value of contingent consideration	$ 5,000,000
Movea S.A [Member] | Research and Development [Member] | Design win [Member]
Cash and Cash Equivalents [Line Items]
Change in fair value of contingent consideration	(4,000,000)
Trusted Positioning, Inc. [Member]
Cash and Cash Equivalents [Line Items]
Change in fair value of contingent consideration	$ (1,300,000)
Trusted Positioning, Inc. [Member] | Design win [Member] | Maximum [Member]
Cash and Cash Equivalents [Line Items]
Percentage of reduction in probability of milestone	50.00%
Trusted Positioning, Inc. [Member] | Design win [Member] | Minimum [Member]
Cash and Cash Equivalents [Line Items]
Percentage of reduction in probability of milestone	0.00%
Trusted Positioning, Inc. [Member] | Research and Development [Member]
Cash and Cash Equivalents [Line Items]
Change in fair value of contingent consideration		$ 3,000,000
Trusted Positioning, Inc. [Member] | Research and Development [Member] | Design win [Member]
Cash and Cash Equivalents [Line Items]
Change in fair value of contingent consideration	$ (2,400,000)
Trusted Positioning, Inc. [Member] | Research and Development [Member] | Cloud application [Member]
Cash and Cash Equivalents [Line Items]
Change in fair value of contingent consideration	$ 1,100,000

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Cash Equivalents and Available-for-Sale Investments

6 Months Ended

Sep. 27, 2015

Cash and Cash Equivalents [Abstract]

Cash Equivalents and Available-for-Sale Investments

2. Cash Equivalents and Available-for-Sale Investments

At September 27, 2015, cash and cash equivalents totaled $70.2 million, of which $45.4 million was cash and $24.8 million was cash equivalents invested in money market funds. At September 27, 2015, $37.0 million of the cash and cash equivalents were held by our foreign subsidiaries. If these funds are needed for our operations in the United States, the Company would be required to accrue and pay U.S. taxes to repatriate these funds. However, the Company’s intent is to indefinitely reinvest these funds outside of the United States, and the Company’s current plans for the foreseeable future do not demonstrate a need to repatriate them to fund U.S. operations. Additionally, as of September 27, 2015, the Company had short-term available-for-sale investments of $203.2 million which are held in the US entity.

At March 29, 2015, cash and cash equivalents totaled $85.6 million, of which $61.6 million was cash and $24.0 million was cash equivalents. At March 29, 2015, $47.7 million of the cash and cash equivalents were held by our foreign subsidiaries. Additionally, as of March 29, 2015, the Company had short-term available-for-sale investments of $129.9 million which are held in the US entity.

The Company applies the provisions of ASC 820-10, “Fair Value Measurements”. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (i.e., the “exit price”) in an orderly transaction between market participants at the measurement date. As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or liability. ASC 820-10 requires disclosure that establishes a framework for measuring fair value and expands disclosure about fair value measurements. The standard describes a fair value hierarchy based on three levels of inputs that may be used to measure fair value. The inputs for the first two levels are considered observable and the last is unobservable and include the following:

Level 1—Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities;

Level 2—Quoted prices in markets that are not active, or inputs which are observable, either directly or indirectly, for substantially the full term of the asset or liability; or

Level 3—Unobservable inputs in which there is little or no market data, and as a result, prices or valuation techniques are employed that require inputs that are significant to the fair value measurement.

This hierarchy requires the Company to use observable market data, when available, and to minimize the use of unobservable inputs when determining fair value. On a recurring basis, the Company measures certain financial assets and liabilities at fair value. The fair values of our money market funds were derived from quoted market prices as active markets for these instruments exist. The Company chose not to elect the fair value option as prescribed by ASC 825-10-05 “Fair Value Option” for its financial assets and liabilities that had not been previously carried at fair value. Therefore, financial assets and liabilities not carried at fair value, such as accounts payable, are still reported at their carrying values.

Fair value measurements at each reporting date were as follows:

September 27, 2015:

Assets measured at fair value on a recurring basis were presented in the Company’s condensed consolidated balance sheet as of September 27, 2015.

	September 27, 2015 Balance		Quoted Prices in Active Markets for Identical Assets Level 1		Significant Other Observable Inputs Level 2		Significant Other Unobservable Inputs Level 3
	(in thousands)
Assets
Money Market Funds	$	24,753	$	24,753	$	—	$	—
Corporate Notes and Bonds		168,465		—		168,465		—
Commercial Paper		32,255		—		32,255		—
U.S. Agency Securities		2,501		—		2,501		—
Total investments	$	227,974	$	24,753	$	203,221	$	—
Liabilities
Contingent consideration	$	3,817	$	—	$	—	$	3,817
Assets
Cash equivalents	$	24,753	$	24,753	$	—	$	—
Short-term investments		203,221		—		203,221		—
Total investments	$	227,974	$	24,753	$	203,221	$	—
Liabilities
Accrued liabilities	$	3,817	$	—	$	—	$	3,817
Total contingent consideration	$	3,817	$	—	$	—	$	3,817

	September 27, 2015 Balance		Gross Unrealized Gain		Gross Unrealized Loss			September 27, 2015 Estimated FMV
Corporate Notes and Bonds	$	168,619	$	4	$	(158	)	$	168,465
Commercial Paper		32,260		1		(6	)		32,255
U.S. Agency Securities		2,500		1		—			2,501
Total Available-for-sale investments	$	203,379	$	6	$	(164	)	$	203,221
Money Market Funds									24,753
Total Aggregate Fair Value								$	227,974

The fair values of money market funds were derived from quoted market prices as active markets for these instruments exist. The fair values of corporate notes and bonds, commercial paper, municipal notes and bonds and U.S. Agency Securities were derived from non-binding market consensus prices that are corroborated by observable market data.

There were no transfers of assets measured at fair value between Level 1 and Level 2 during the three months ended September 27, 2015.

March 29, 2015:

Assets measured at fair value on a recurring basis were presented in the Company’s consolidated balance sheet as of March 29, 2015.

	March 29, 2015 Balance		Quoted Prices in Active Markets for Identical Assets Level 1		Significant Other Observable Inputs Level 2		Significant Other Unobservable Inputs Level 3
	(in thousands)
Assets
Money Market Funds	$	22,023	$	22,023	$	—	$	—
Corporate Notes and Bonds		122,124		—		122,124		—
Commercial Paper		6,991		—		6,991		—
Municipal Notes and Bonds		302		—		302		—
U.S. Agency Securities		2,502		—		2,502		—
Total investments	$	153,942	$	22,023	$	131,919	$	—
Liabilities
Contingent consideration	$	9,124	$	—	$	—	$	9,124
Assets
Cash equivalents	$	24,023	$	24,023	$	—	$	—
Short-term investments		129,919		—		129,919		—
Long-term investments		—		—		—		—
Total investments	$	153,942	$	24,023	$	129,919	$	—
Liabilities
Accrued liabilities	$	6,364	$	—	$	—	$	6,364
Long-term liabilities		2,760		—		—		2,760
Total contingent consideration	$	9,124	$	—	$	—	$	9,124

	March 29, 2015 Amortized Cost		Gross Unrealized Gain		Gross Unrealized Loss			March 29, 2015 Estimated FMV
Corporate Notes and Bonds	$	122,131	$	22	$	(29	)	$	122,124
Commercial Paper		6,992		—		(1	)		6,991
Municipal Notes and Bonds		302		—		—			302
U.S. Agency Securities		2,500		2		—			2,502
Total Available-for-sale investments	$	131,925	$	24	$	(30	)	$	131,919
Money Market Funds									22,023
Total Aggregate Fair Value								$	153,942

The fair values of money market funds were derived from quoted market prices as active markets for these instruments exist. The fair values of corporate notes and bonds, commercial paper, and U.S. Agency Securities were derived from non-binding market consensus prices that are corroborated by observable market data.

There were no transfers of assets measured at fair value between Level 1 and Level 2 during fiscal 2015.

Level 3 financial liabilities:

The following table provides a summary of changes in fair value of the Company’s contingent consideration categorized as Level 3 for the six months ended September 27, 2015:

	Six Months Ended
	September 27, 2015
	(in thousands)
Beginning balance	$	9,124
Add: Contingent consideration in connection with acquisitions		—
Payments made on contingent liabilities		—
Change in fair value and other		(5,307	)
Ending balance	$	3,817

Contingent consideration on acquired businesses (See Note 8) was measured at fair value using Level 3 inputs as defined in the fair value hierarchy. The following table presents certain information about the significant unobservable inputs used in the fair value measurement for the contingent consideration measured at fair value on a recurring basis using significant unobservable inputs:

Description	Valuation Techniques	Significant Unobservable Inputs
Liabilities: Contingent consideration	Present value of a Probability Weighted Earn-out model using an appropriate discount rate.	Estimate of achieving the milestones.

An increase in the estimate of probability of meeting the milestones could result in a significantly higher estimated fair value of the contingent consideration liability. Alternatively, a decrease in the estimate of probability of meeting the milestones could result in a significantly lower estimated fair value of contingent consideration liability. The fair value of contingent consideration was derived from a probability weighted earn-out model of future contingent payments. The cash payments are expected to be made upon meeting the milestones (See Note 8). The initial valuation of the contingent consideration was based on a collaborative effort of the Company’s engineering and finance departments, and third party valuation experts. The estimate of meeting the milestones and discount rates will be reviewed quarterly and updated as and when necessary. Potential valuation adjustments will be made to adjust the contingent consideration payments. These adjustments will be recorded in the statements of operations.

During the six months ended September 27, 2015, the fair value of contingent consideration declined by $5.3 million. The decline in fair value was the result of a reduction in the probability of a design win milestone associated with the Movea, S.A., (“Movea”) acquisition from 50% to 0% and a reduction in the probability of a design win associated with the Trusted Positioning, Inc. (“TPI”) acquisition from 50% to 0%. The decline in fair value of the design win milestones for Movea and TPI was $4.0 million and $2.4 million, respectively, which were recorded as a credit to research and development expense. The earn-out payments for the Movea and TPI’s design win milestones were not made as these miles stones were not met and expired during the six months ended September 27, 2015. Offsetting this amount is an increase in the fair value of two TPI cloud application milestones as a result of an increase in the estimated probability of achievement of those milestones. The increase in the fair value of the cloud application milestones was $1.1 million which was recorded as a debit to research and development expense during the six months ended September 27, 2015.

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Cash Equivalents and Available-for-Sale Investments - Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Sep. 27, 2015	Mar. 29, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated FMV	$ 203,221	$ 129,919
Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets	227,974	153,942
Amortized Cost	203,379	131,925
Gross Unrealized Gain	6	24
Gross Unrealized Loss	(164)	(30)
Estimated FMV	203,221	131,919
Fair value of assets	227,974	153,942
Accrued liabilities	3,817	9,124
Fair Value, Recurring [Member] | Accrued Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Accrued liabilities	3,817	6,364
Fair Value, Recurring [Member] | Long-term Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Accrued liabilities		2,760
Fair Value, Recurring [Member] | Short-term Investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets	203,221	129,919
Fair value of assets	203,221	129,919
Fair Value, Recurring [Member] | Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets	24,753	22,023
Fair value of assets	24,753	22,023
Fair Value, Recurring [Member] | Corporate Notes and Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets	168,465	122,124
Amortized Cost	168,619	122,131
Gross Unrealized Gain	4	22
Gross Unrealized Loss	(158)	(29)
Estimated FMV	168,465	122,124
Fair value of assets	168,465	122,124
Fair Value, Recurring [Member] | Municipal Notes and Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets		302
Amortized Cost		302
Estimated FMV		302
Fair value of assets		302
Fair Value, Recurring [Member] | Commercial Paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets	32,255	6,991
Amortized Cost	32,260	6,992
Gross Unrealized Gain	1
Gross Unrealized Loss	(6)	(1)
Estimated FMV	32,255	6,991
Fair value of assets	32,255	6,991
Fair Value, Recurring [Member] | U.S. Agency Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets	2,501	2,502
Amortized Cost	2,500	2,500
Gross Unrealized Gain	1	2
Estimated FMV	2,501	2,502
Fair value of assets	2,501	2,502
Fair Value, Recurring [Member] | Cash Equivalents [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets	24,753	24,023
Fair value of assets	24,753	24,023
Fair Value, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets	24,753	22,023
Fair value of assets	24,753	22,023
Fair Value, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets Level 1 [Member] | Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets	24,753	22,023
Fair value of assets	24,753	22,023
Fair Value, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets Level 1 [Member] | Cash Equivalents [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets	24,753	24,023
Fair value of assets	24,753	24,023
Fair Value, Recurring [Member] | Significant Other Observable Inputs Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets	203,221	131,919
Fair value of assets	203,221	131,919
Fair Value, Recurring [Member] | Significant Other Observable Inputs Level 2 [Member] | Short-term Investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets	203,221	129,919
Fair value of assets	203,221	129,919
Fair Value, Recurring [Member] | Significant Other Observable Inputs Level 2 [Member] | Corporate Notes and Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets	168,465	122,124
Fair value of assets	168,465	122,124
Fair Value, Recurring [Member] | Significant Other Observable Inputs Level 2 [Member] | Municipal Notes and Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets		302
Fair value of assets		302
Fair Value, Recurring [Member] | Significant Other Observable Inputs Level 2 [Member] | Commercial Paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets	32,255	6,991
Fair value of assets	32,255	6,991
Fair Value, Recurring [Member] | Significant Other Observable Inputs Level 2 [Member] | U.S. Agency Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets	2,501	2,502
Fair value of assets	2,501	2,502
Fair Value, Recurring [Member] | Significant Other Unobservable Inputs Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Accrued liabilities	3,817	9,124
Fair Value, Recurring [Member] | Significant Other Unobservable Inputs Level 3 [Member] | Accrued Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Accrued liabilities	$ 3,817	6,364
Fair Value, Recurring [Member] | Significant Other Unobservable Inputs Level 3 [Member] | Long-term Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Accrued liabilities		$ 2,760

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Balance Sheet Details - Other Long-term Liabilities (Detail) - USD ($) $ in Thousands	Sep. 27, 2015	Mar. 29, 2015
Other Liabilities Disclosure [Abstract]
Long-term tax payable	$ 14,223	$ 11,918
Deferred tax liabilities	3,481	3,936
Deferred revenue, Noncurrent	3,000	3,400
Deferred rent	3,740	3,630
Contingent consideration, noncurrent portion		2,760
Long-term debt	2,502	2,472
Other long-term liabilities	251	136
Total accrued liabilities	$ 27,197	$ 28,252

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Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Income Taxes Disclosure [Line Items]
Income tax provision (benefit)	$ (1,960)	$ 603	$ (1,732)	$ 882
Uncertain tax positions within Other long-term liabilities	$ 14,200		$ 14,200
Revenue [Member] | Outside U.S. [Member] | Customer Concentration Risk [Member]
Income Taxes Disclosure [Line Items]
Percentage of net revenue	90.00%	90.00%

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Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 27, 2015	Mar. 29, 2015
Current assets:
Cash and cash equivalents	$ 70,162	$ 85,637
Short-term investments	203,221	129,919
Accounts receivable	50,434	44,522
Inventories	61,684	75,105
Prepaid expenses and other current assets	13,143	14,950
Total current assets	398,644	350,133
Property and equipment, net	39,091	41,849
Intangible assets, net	41,005	45,508
Goodwill	139,175	139,175
Other assets	14,424	9,019
Total assets	632,339	585,684
Current liabilities:
Accounts payable	34,951	23,130
Accrued liabilities	43,768	31,991
Total current liabilities	78,719	55,121
Long-term debt	146,767	142,810
Other long-term liabilities	27,197	28,252
Total liabilities	$ 252,683	$ 226,183
Commitments and contingencies (Note 4)
Preferred stock:
Preferred stock, $0.001 par value - 20,000 shares authorized, no shares issued and outstanding at September 27, 2015 and March 29, 2015
Common stock:
Common stock, $0.001 par value - 750,000 shares authorized, 92,012 shares issued and outstanding at September 27, 2015; 90,894 shares issued and outstanding at March 29, 2015;	$ 283,084	$ 262,677
Accumulated other comprehensive (loss)	(102)	(4)
Retained earnings	96,674	96,828
Total stockholders' equity	379,656	359,501
Total liabilities and stockholders' equity	$ 632,339	$ 585,684

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Convertible Senior Notes - Schedule of Interest Expense Recognized Related to Notes (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Debt Disclosure [Abstract]
Contractual coupon interest expense	$ 764	$ 764	$ 1,528	$ 1,532
Accretion of debt discount	1,986	1,843	3,931	3,647
Amortization of debt issuance costs	13	13	26	25
Total interest expense related to the Notes	$ 2,763	$ 2,620	$ 5,485	$ 5,204

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Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Sep. 27, 2015	Sep. 28, 2014
Cash flows from operating activities:
Net loss	$ (154)	$ (11,700)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation	6,245	4,310
Amortization of intangible assets	4,503	2,895
Non cash interest expense	3,958	3,672
Write-off of in-process research and development		770
Loss on disposal of property and equipment		326
Gain on equity investment		(890)
Stock-based compensation expense	17,683	14,637
Contingent consideration adjustment	(5,307)
Deferred income tax assets	(3,498)	25
Tax effect of employee benefit plan	(758)
Changes in operating assets and liabilities:
Accounts receivable	(5,912)	(27,298)
Inventories	13,421	(1,978)
Prepaid expenses and other assets	2,113	54
Other assets	(1,833)	(1,100)
Accounts payable	12,444	5,398
Accrued liabilities	15,872	8,130
Net cash provided by (used in) operating activities	58,777	(2,749)
Cash flows from investing activities:
Acquisitions, net of cash acquired		(71,446)
Purchase of property and equipment	(3,953)	(17,624)
Sales and maturities of available-for-sale investments	71,843	98,528
Purchase of available-for-sale investments	(145,732)
Net cash provided by (used in) investing activities	(77,842)	9,458
Cash flows from financing activities:
Proceeds from the issuance of common stock	3,590	5,690
Net cash provided by financing activities	3,590	5,690
Net increase (decrease) in cash and cash equivalents	(15,475)	12,399
Cash and cash equivalents:
Beginning of period	85,637	26,025
End of period	70,162	38,424
Supplemental disclosures of cash flow information:
Cash paid for interest	1,531	1,429
Cash paid (received) for income taxes	294	(186)
Noncash investing and financing activities:
Unpaid purchases of property and equipment	604	5,681
Unrealized gain (loss) from available-for-sale investments	$ (157)	2
Proceeds receivable from the exercise of stock options		$ 81

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Goodwill and Intangible Assets - Summary of Intangible Assets and Accumulated Amortization (Detail) - USD ($) $ in Thousands	Sep. 27, 2015	Mar. 29, 2015
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, Gross	$ 51,290	$ 48,000
Intangible assets subject to amortization, Accumulated Amortization	13,555	9,052
Intangible assets subject to amortization, Net	37,735	38,948
Developed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, Gross	47,610	44,320
Intangible assets subject to amortization, Accumulated Amortization	12,873	8,697
Intangible assets subject to amortization, Net	34,737	35,623
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, Gross	1,560	1,560
Intangible assets subject to amortization, Accumulated Amortization	427	316
Intangible assets subject to amortization, Net	1,133	1,244
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, Gross	2,120	2,120
Intangible assets subject to amortization, Accumulated Amortization	255	39
Intangible assets subject to amortization, Net	$ 1,865	$ 2,081

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Balance Sheet Details - Inventories (Detail) - USD ($) $ in Thousands	Sep. 27, 2015	Mar. 29, 2015
Inventory Disclosure [Abstract]
Work in process	$ 23,941	$ 49,146
Finished goods	37,743	25,959
Total inventories	$ 61,684	$ 75,105

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Stockholders' Equity (Tables)

6 Months Ended

Sep. 27, 2015

Equity [Abstract]

Stock Option Activities

Stock option activities of the Company under the Plans are as follows (in thousands, except per share amounts):

	Options Issued and Outstanding			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (In Years)		Aggregate Intrinsic Value
Balance — March 29, 2015		8,307		$	12.99		7.60	$	29,817
Options granted		1,606			14.72
Exercised options		(361	)		6.67
Cancelled options		(344	)		13.71
Balance — September 27, 2015		9,208		$	13.51		7.59	$	5,271
Vested and expected to vest — September 27, 2015		8,335		$	13.24		7.46	$	5,268
Vested — September 27, 2015		4,210		$	11.17		6.52	$	5,193

Weighted-Average Assumptions in Determining Stock-Based Compensation Expense Options Granted

The Company used the following weighted-average assumptions in determining stock-based compensation expense for options granted in the three and six months ended September 27, 2015 and September 28, 2014.

	Three Months Ended						Six Months Ended
	September 27,			September 28,			September 27,			September 28,
	2015			2014			2015			2014
Expected term (in years)		5.1			4.6			5.1			4.5
Volatility		44.4	%		41.4	%		45.1	%		41.7	%
Risk-free interest rate		1.5	%		1.5	%		1.5	%		1.4	%
Dividend rate		0	%		0	%		0	%		0	%

Restricted Stock Unit and Restricted Stock Activity

Restricted stock unit and restricted stock activity of the Company under the Plans are as follows:

				Weighted Average
				Grant Date Fair
Restricted stock units and restricted stock activities	Shares			Value Per Share
	(in thousands, except per share amount)
Unvested at March 29, 2015		4,030		$	17.75
Granted		1,060			14.20
Released		(606	)		17.26
Forfeited		(367	)		17.39
Unvested at September 27, 2015		4,117		$	16.94

Common Stock Reserved for Future Issuance

As of September 27, 2015 and March 29, 2015, common stock reserved for future issuance was as follows:

Common stock reserved for issuance	September 27, 2015		March 29, 2015
	(in thousands)
Stock plans
Outstanding stock options		9,208		8,307
Outstanding restricted stock units and restricted stocks		4,117		4,030
Reserved for future equity incentive grants		12,006		10,300
		25,331		22,637
Purchase plan		1,111		230
Warrants to purchase common stock		7,995		7,995
Total common stock reserved for future issuances		34,437		30,862

Summary of Total Stock-Based Compensation Cost

Total employee stock-based compensation cost for the Company’s stock plans for the three and six months ended September 27, 2015 and September 28, 2014 is as follows:

	Three Months Ended				Six Months Ended
	September 27,		September 28,		September 27,		September 28,
	2015		2014		2015		2014
	(in thousands)
Cost of revenue	$	584	$	654	$	1,184	$	1,311
Research and development		4,002		3,197		7,838		6,715
Selling, general and administrative		4,462		3,151		8,661		6,611
Total stock-based compensation expense	$	9,048	$	7,002	$	17,683	$	14,637

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Balance Sheet Details - Prepaid Expenses and Other Current Assets (Detail) - USD ($) $ in Thousands	Sep. 27, 2015	Mar. 29, 2015
Balance Sheet Related Disclosures [Abstract]
Deferred tax assets	$ 5,099	$ 5,127
Prepaid expenses	4,175	4,280
Income tax receivable	89	1,398
Other receivables	1,707	2,675
Other current assets	2,073	1,470
Total prepaid expenses and other current assets	$ 13,143	$ 14,950

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Goodwill and Intangible Assets (Tables)

6 Months Ended

Sep. 27, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Intangible Assets and Accumulated Amortization

The following table represents intangible assets and accumulated amortization:

	September 27, 2015
			Accumulated
	Gross		Amortization		Net
	(in thousands)
Developed technology	$	47,610	$	12,873	$	34,737
Customer relationships		1,560		427		1,133
Patents		2,120		255		1,865
Total intangible assets subject to amortization	$	51,290	$	13,555	$	37,735

	March 29, 2015
			Accumulated
	Gross		Amortization		Net
	(in thousands)
Developed technology	$	44,320	$	8,697	$	35,623
Customer relationships		1,560		316		1,244
Patents		2,120		39		2,081
Total intangible assets subject to amortization	$	48,000	$	9,052	$	38,948

Estimated Future Amortization Expense Related to Intangible Assets

The estimated future amortization expense related to intangible assets at September 27, 2015, is as follows:

	Estimated
	Amortization
Fiscal Year	(in thousands)
2016 (reminder)	$	4,612
2017		9,225
2018		9,225
2019		9,225
2020		5,208
Thereafter		240
Total	$	37,735

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Organization and Summary of Significant Accounting Policies

6 Months Ended

Sep. 27, 2015

Accounting Policies [Abstract]

Organization and Summary of Significant Accounting Policies

1. Organization and Summary of Significant Accounting Policies

Business

InvenSense, Inc. (the “Company”) was incorporated in California in June 2003 and reincorporated in Delaware in January 2004. The Company designs, develops, markets and sells sensor systems on a chip, including accelerometers, gyroscopes and microphones for the mobile, wearable, smart home, gaming, industrial, and automotive market segments.

These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and the notes thereto for the fiscal year ended March 29, 2015 included in the Company’s Annual Report on Form 10-K filed on May 28, 2015 with the Securities and Exchange Commission (“SEC”). No material changes have been made to the Company’s significant accounting policies since the Company’s Annual Report on Form 10-K for the fiscal year ended March 29, 2015.

Certain Significant Business Risks and Uncertainties

The Company participates in the high-technology industry and believes that adverse changes in any of the following areas could have a material effect on the Company’s future financial position, results of operations, or cash flows: reliance on a limited number of primary customers to support the Company’s revenue generating activities; advances and trends in new technologies and industry standards; market acceptance of the Company’s products; development of sales channels; strategic relationships, including key component suppliers; litigation or claims against the Company based on intellectual property, patent, product, regulatory, or other factors; and the Company’s ability to attract and retain employees necessary to support its growth.

Basis of Consolidation

The consolidated financial statements have been prepared in conformity with U.S. generally accepted accounting principles (“GAAP”), and include our accounts and the accounts of our wholly-owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. The functional currency of each of the Company’s subsidiaries is the U.S. dollar. Foreign currency gains or losses are recorded as other income (expense), net, in the condensed consolidated statements of operations.

Fiscal Year

The Company’s fiscal year is a 52 or 53 week period ending on the Sunday closest to March 31. The Company’s most recent fiscal year (“Fiscal 2015”) ended on March 29, 2015 (“March 2015”). The second fiscal quarter in each of the two most recent fiscal years ended on September 27, 2015 (“three months ended September 27, 2015”) and September 28, 2014 (“three months ended September 28, 2014”), respectively, and each quarter period included 13 weeks. Fiscal year 2016 is a 53-week fiscal year. The extra week is included in our fourth fiscal quarter ended April 3, 2016.

Basis of Presentation

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with GAAP and applicable rules and regulations of the SEC regarding interim financial reporting. Certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations.

The condensed consolidated balance sheet as of March 29, 2015, included herein was derived from the audited financial statements as of that date, but does not include all disclosures required by GAAP. The unaudited interim condensed consolidated financial statements, in the opinion of management, reflect all normal recurring adjustments necessary to present fairly the Company’s financial position, results of operations, comprehensive income (loss) and cash flows for the interim periods. The results of operations for the period ended September 27, 2015 is not necessarily indicative of the results to be expected for the fiscal year ending April 3, 2016 or for any future year or interim period.

Use of Estimates

The preparation of the Company’s Condensed Consolidated Financial Statements and notes thereto in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the Condensed Consolidated Financial Statements and notes thereto and the reported amounts of income and expenses during the reporting period. Significant estimates included in the Consolidated Financial Statements and notes thereto include income taxes, inventory valuation, stock-based compensation, goodwill, loss contingencies, warranty reserves, valuation of acquired assets and contingent consideration, and valuation of convertible senior notes, including the related convertible notes hedges and warrants. These estimates are based upon information available as of the date of the consolidated financial statements, and actual results could differ from those estimates.

Goodwill

Goodwill represents the excess of the purchase price over the fair value of the net tangible and identifiable intangible assets acquired in a business combination. In accordance with Accounting Standard Codification 350, the Company reviews goodwill for impairment at the reporting unit level on an annual basis or whenever events or changes in circumstances indicate the carrying value may not be recoverable. As the Company uses the market approach to assess impairment, its common stock price is an important component of the fair value calculation. The Company has determined that it has a single reporting unit for purposes of performing its goodwill impairment test. The Company performed its annual impairment test during the quarter ended December 28, 2014 and determined that its goodwill was not impaired.

Concentration of Credit Risk

The majority of the Company’s products are shipped through its distributors or contract manufacturers, which are the legal counter-party on the sale. When the Company references customers, sales and revenue in this report, the Company is referring to the manufacturers of consumer electronics devices that are the end customer for our products. However, any disclosure about the composition of the Company’s accounts receivable refers to the intermediary, which is the legal counter party in a particular contract. Some of the Company’s intermediaries may serve more than one of the Company’s customers. As a result, attempting to compare or correlate disclosures about our accounts receivable composition as of a particular date with the disclosures regarding revenues generated by our customers for the period ending on the same date can be difficult or misleading.

A distributor and a customer accounted for 49% and 20% of accounts receivable, respectively, at September 27, 2015. A distributor and a customer accounted for 38% and 26% of accounts receivable, respectively, at March 29, 2015.

For the three months ended September 27, 2015, one customer accounted for 34% of total net revenue and one customer accounted for 19% of total net revenue. For the six months ended September 27, 2015, one customer accounted for 36% of total net revenue and one customer accounted for 21% of total net revenue. For the three months ended September 28, 2014, one customer accounted for 29% of total net revenue and one customer accounted for 26% of total net revenue. For the six months ended September 28, 2014, one customer accounted for 30% of total net revenue, one customer accounted for 17% of total net revenue and the third customers accounted for 10% of total net revenue.

Warranty

The Company offers one year standard warranty to its products. In selective cases, the warranty period could be extended to multiple years. The Company’s accrual for anticipated warranty costs has increased primarily due to an increase in unit sales volume and a commensurate increase in the volume of product returned under the warranty agreements. The accrual also includes management’s judgment regarding anticipated rates of warranty claims and associated repair costs. The following table summarizes the activity related to product warranty liability during the six months ended September 27, 2015 and September 28, 2014:

	Six Months Ended
	September 27, 2015			September 28, 2014
	(in thousands)
Beginning balance	$	341		$	80
Provision for warranty		421			103
Adjustments related to changes in estimate		(204	)		(96	)
Less: actual warranty costs		(82	)		(15	)
Ending balance	$	476		$	72

Net Income (Loss) Per Share

Basic net income per share is computed by dividing net income (loss) by the weighted average number of shares outstanding during the period, which excludes dilutive unvested restricted stock. Diluted net income per share is computed by dividing net income (loss) by the weighted average number of shares outstanding, including unvested restricted stock, certain warrants to purchase common stock and potential dilutive shares from the dilutive effect of outstanding stock options using the treasury stock method. In periods in which the Company has reported a net loss, the common stock equivalents are excluded from the calculation of diluted net loss per share of common stock as their effect is antidilutive under the treasury stock method.

The following table presents the calculation of basic and diluted net loss per share:

	Three Months Ended					Six Months Ended
	September 27, 2015		September 28, 2014			September 27, 2015			September 28, 2014
	(in thousands, except per share data)
Numerator:
Basic and Diluted
Net income (loss)	$	5,693	$	(6,868	)	$	(154	)	$	(11,700	)
Denominator:
Basic shares:
Weighted-average shares used in computing basic net income (loss) per share		91,574		88,997			91,325			88,650
Diluted shares:
Weighted-average shares used in computing basic net income (loss) per share		91,574		88,997			91,325			88,650
Effect of potentially dilutive securities:
Stock options and unvested restricted stock		995		—			—			—
Common stock warrants		—		—			—			—
Weighted-average shares used in computing diluted net income (loss) per share		92,569		88,997			91,325			88,650
Net income (loss) per share
Basic	$	0.06	$	(0.08	)	$	(0.00	)	$	(0.13	)
Diluted	$	0.06	$	(0.08	)	$	(0.00	)	$	(0.13	)

The following summarizes the potentially dilutive securities outstanding at the end of each period that were excluded from the computation of diluted net loss per share for the periods presented as their effect would have been antidilutive:

	Three Months Ended				Six Months Ended
	September 27, 2015		September 28, 2014		September 27, 2015		September 28, 2014
	(in thousands)
Employee stock options		7,382		8,665		9,059		8,635
Unvested restricted stock units		2,989		3,660		4,204		3,537
Total antidilutive securities		10,371		12,325		13,263		12,172

Segment Information

The Company operates in one operating segment by designing, developing, manufacturing and marketing sensor systems on a chip. The Chief Executive Officer has been identified as the Chief Operating Decision Maker as defined by Financial Accounting Standards Board’s ASC 280 “Segment Reporting”. Enterprise-wide information is provided in accordance with ASC 280. Geographical revenue information is based on the location of our customers’ head offices. Property and equipment information is based on the physical location of the assets at the end of each fiscal period.

Property and equipment by country were as follows:

Country	September 27, 2015		March 29, 2015
	(in thousands)
United States	$	9,542	$	9,442
Taiwan		27,915		31,334
Other		1,634		1,073
	$	39,091	$	41,849

Net revenue from unaffiliated customers by country was as follows:

	Three Months Ended				Six Months Ended
Region	September 27, 2015		September 28, 2014		September 27, 2015		September 28, 2014
	(in thousands)
United States	$	42,913	$	29,622	$	86,716	$	37,452
Korea		24,469		35,058		53,192		63,970
China		26,010		12,546		50,616		29,906
Japan		8,028		5,939		12,164		9,733
Taiwan		7,576		5,185		10,762		12,795
Rest of world		3,549		1,845		5,391		3,020
	$	112,545	$	90,195	$	218,841	$	156,876

Recent Accounting Pronouncements

On July 22, 2015, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2015-11, the FASB issued final guidance that simplifies the subsequent measurement of inventories by replacing today’s lower of cost or market test with a lower of cost and net realizable value test. The guidance applies only to inventories for which cost is determined by methods other than last-in first-out and the retail inventory method. Entities that use last-in, first-out or retail inventory method will continue to use existing impairment models. The guidance is effective for public business entities for fiscal years beginning after December 15, 2016, and interim periods within those fiscal years. The Company does not expect this guidance to have significant impact on its consolidated financial statements.

On August 18, 2015, the FASB issued ASU No. 2015-15, the ASU states that the Securities and Exchange Commission (“SEC”) staff would not object to an entity deferring and presenting debt issuance costs as an asset and subsequently amortizing deferred debt issuance costs ratably over the term of the line-of-credit arrangement, regardless of whether there are outstanding borrowings under that line-of-credit arrangement. For public business entities, ASU 2015-15 is effective concurrent with adoption of ASU No. 2015-03 which is effective for financial statements issued for fiscal years beginning after December 15, 2015, and interim periods within those fiscal years. The FASB issued ASU 2015-03, Simplifying the Presentation of Debt Issuance Costs on April 7, 2015. ASU 2015-03 requires debt issuance costs to be presented in the balance sheet as a direct deduction from the carrying value of the associated debt liability, consistent with the presentation of a debt discount. The Company does not expect this guidance to have significant impact on its consolidated financial statements.

On September 25, 2015, the FASB issued ASU 2015-16, the new guidance eliminates the requirement that an acquirer in a business combination account for measurement-period adjustments retrospectively. An acquirer will recognize a measurement-period adjustment during the period in which it determines the amount of the adjustment. The guidance is effective for public business entities for fiscal years beginning after December 15, 2015, and interim periods within those fiscal years. The Company does not expect this guidance to have significant impact on its consolidated financial statements.

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Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 27, 2015	Mar. 29, 2015
Statement of Financial Position [Abstract]
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	20,000,000	20,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	750,000,000	750,000,000
Common stock, shares issued	92,012,000	90,894,000
Common stock, shares outstanding	92,012,000	90,894,000

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Organization and Summary of Significant Accounting Policies (Tables)

6 Months Ended

Sep. 27, 2015

Accounting Policies [Abstract]

Summary of Activity Related to Product Warranty Liability

The following table summarizes the activity related to product warranty liability during the six months ended September 27, 2015 and September 28, 2014:

	Six Months Ended
	September 27, 2015			September 28, 2014
	(in thousands)
Beginning balance	$	341		$	80
Provision for warranty		421			103
Adjustments related to changes in estimate		(204	)		(96	)
Less: actual warranty costs		(82	)		(15	)
Ending balance	$	476		$	72

Calculation of Basic and Diluted Net Loss Per Share

The following table presents the calculation of basic and diluted net loss per share:

	Three Months Ended					Six Months Ended
	September 27, 2015		September 28, 2014			September 27, 2015			September 28, 2014
	(in thousands, except per share data)
Numerator:
Basic and Diluted
Net income (loss)	$	5,693	$	(6,868	)	$	(154	)	$	(11,700	)
Denominator:
Basic shares:
Weighted-average shares used in computing basic net income (loss) per share		91,574		88,997			91,325			88,650
Diluted shares:
Weighted-average shares used in computing basic net income (loss) per share		91,574		88,997			91,325			88,650
Effect of potentially dilutive securities:
Stock options and unvested restricted stock		995		—			—			—
Common stock warrants		—		—			—			—
Weighted-average shares used in computing diluted net income (loss) per share		92,569		88,997			91,325			88,650
Net income (loss) per share
Basic	$	0.06	$	(0.08	)	$	(0.00	)	$	(0.13	)
Diluted	$	0.06	$	(0.08	)	$	(0.00	)	$	(0.13	)

Securities Excluded from Computation of Diluted Net Loss Per Share

The following summarizes the potentially dilutive securities outstanding at the end of each period that were excluded from the computation of diluted net loss per share for the periods presented as their effect would have been antidilutive:

	Three Months Ended				Six Months Ended
	September 27, 2015		September 28, 2014		September 27, 2015		September 28, 2014
	(in thousands)
Employee stock options		7,382		8,665		9,059		8,635
Unvested restricted stock units		2,989		3,660		4,204		3,537
Total antidilutive securities		10,371		12,325		13,263		12,172

Property and Equipment by Country

Property and equipment by country were as follows:

Country	September 27, 2015		March 29, 2015
	(in thousands)
United States	$	9,542	$	9,442
Taiwan		27,915		31,334
Other		1,634		1,073
	$	39,091	$	41,849

Net Revenue from Unaffiliated Customers by Country

Net revenue from unaffiliated customers by country was as follows:

	Three Months Ended				Six Months Ended
Region	September 27, 2015		September 28, 2014		September 27, 2015		September 28, 2014
	(in thousands)
United States	$	42,913	$	29,622	$	86,716	$	37,452
Korea		24,469		35,058		53,192		63,970
China		26,010		12,546		50,616		29,906
Japan		8,028		5,939		12,164		9,733
Taiwan		7,576		5,185		10,762		12,795
Rest of world		3,549		1,845		5,391		3,020
	$	112,545	$	90,195	$	218,841	$	156,876

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Document and Entity Information - shares	6 Months Ended
	Sep. 27, 2015	Oct. 16, 2015
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 27, 2015
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q2
Trading Symbol	INVN
Entity Registrant Name	InvenSense Inc
Entity Central Index Key	0001294924
Current Fiscal Year End Date	--04-03
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		92,043,000

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Cash Equivalents and Available-for-Sale Investments (Tables)

6 Months Ended

Sep. 27, 2015

Cash and Cash Equivalents [Abstract]

Assets and Liabilities Measured at Fair Value on Recurring Basis

Assets measured at fair value on a recurring basis were presented in the Company’s condensed consolidated balance sheet as of September 27, 2015.

	September 27, 2015 Balance		Quoted Prices in Active Markets for Identical Assets Level 1		Significant Other Observable Inputs Level 2		Significant Other Unobservable Inputs Level 3
	(in thousands)
Assets
Money Market Funds	$	24,753	$	24,753	$	—	$	—
Corporate Notes and Bonds		168,465		—		168,465		—
Commercial Paper		32,255		—		32,255		—
U.S. Agency Securities		2,501		—		2,501		—
Total investments	$	227,974	$	24,753	$	203,221	$	—
Liabilities
Contingent consideration	$	3,817	$	—	$	—	$	3,817
Assets
Cash equivalents	$	24,753	$	24,753	$	—	$	—
Short-term investments		203,221		—		203,221		—
Total investments	$	227,974	$	24,753	$	203,221	$	—
Liabilities
Accrued liabilities	$	3,817	$	—	$	—	$	3,817
Total contingent consideration	$	3,817	$	—	$	—	$	3,817

	September 27, 2015 Balance		Gross Unrealized Gain		Gross Unrealized Loss			September 27, 2015 Estimated FMV
Corporate Notes and Bonds	$	168,619	$	4	$	(158	)	$	168,465
Commercial Paper		32,260		1		(6	)		32,255
U.S. Agency Securities		2,500		1		—			2,501
Total Available-for-sale investments	$	203,379	$	6	$	(164	)	$	203,221
Money Market Funds									24,753
Total Aggregate Fair Value								$	227,974

The fair values of money market funds were derived from quoted market prices as active markets for these instruments exist. The fair values of corporate notes and bonds, commercial paper, municipal notes and bonds and U.S. Agency Securities were derived from non-binding market consensus prices that are corroborated by observable market data.

There were no transfers of assets measured at fair value between Level 1 and Level 2 during the three months ended September 27, 2015.

March 29, 2015:

Assets measured at fair value on a recurring basis were presented in the Company’s consolidated balance sheet as of March 29, 2015.

	March 29, 2015 Balance		Quoted Prices in Active Markets for Identical Assets Level 1		Significant Other Observable Inputs Level 2		Significant Other Unobservable Inputs Level 3
	(in thousands)
Assets
Money Market Funds	$	22,023	$	22,023	$	—	$	—
Corporate Notes and Bonds		122,124		—		122,124		—
Commercial Paper		6,991		—		6,991		—
Municipal Notes and Bonds		302		—		302		—
U.S. Agency Securities		2,502		—		2,502		—
Total investments	$	153,942	$	22,023	$	131,919	$	—
Liabilities
Contingent consideration	$	9,124	$	—	$	—	$	9,124
Assets
Cash equivalents	$	24,023	$	24,023	$	—	$	—
Short-term investments		129,919		—		129,919		—
Long-term investments		—		—		—		—
Total investments	$	153,942	$	24,023	$	129,919	$	—
Liabilities
Accrued liabilities	$	6,364	$	—	$	—	$	6,364
Long-term liabilities		2,760		—		—		2,760
Total contingent consideration	$	9,124	$	—	$	—	$	9,124

	March 29, 2015 Amortized Cost		Gross Unrealized Gain		Gross Unrealized Loss			March 29, 2015 Estimated FMV
Corporate Notes and Bonds	$	122,131	$	22	$	(29	)	$	122,124
Commercial Paper		6,992		—		(1	)		6,991
Municipal Notes and Bonds		302		—		—			302
U.S. Agency Securities		2,500		2		—			2,502
Total Available-for-sale investments	$	131,925	$	24	$	(30	)	$	131,919
Money Market Funds									22,023
Total Aggregate Fair Value								$	153,942

The fair values of money market funds were derived from quoted market prices as active markets for these instruments exist. The fair values of corporate notes and bonds, commercial paper, and U.S. Agency Securities were derived from non-binding market consensus prices that are corroborated by observable market data.

There were no transfers of assets measured at fair value between Level 1 and Level 2 during fiscal 2015.

Summary of Changes in Fair Value of Company's Contingent Consideration Categorized as Level 3

The following table provides a summary of changes in fair value of the Company’s contingent consideration categorized as Level 3 for the six months ended September 27, 2015:

	Six Months Ended
	September 27, 2015
	(in thousands)
Beginning balance	$	9,124
Add: Contingent consideration in connection with acquisitions		—
Payments made on contingent liabilities		—
Change in fair value and other		(5,307	)
Ending balance	$	3,817

Summary of Significant Unobservable Inputs used in Fair Value Measurement on Recurring Basis

The following table presents certain information about the significant unobservable inputs used in the fair value measurement for the contingent consideration measured at fair value on a recurring basis using significant unobservable inputs:

Description	Valuation Techniques	Significant Unobservable Inputs
Liabilities: Contingent consideration	Present value of a Probability Weighted Earn-out model using an appropriate discount rate.	Estimate of achieving the milestones.

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Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Income Statement [Abstract]
Net revenue	$ 112,545	$ 90,195	$ 218,841	$ 156,876
Costs of revenue	65,974	58,854	127,439	94,359
Gross profit	46,571	31,341	91,402	62,517
Operating expenses:
Research and development	24,991	21,593	45,246	41,001
Selling, general and administrative	15,186	14,592	31,010	28,510
Legal settlement accrual			11,708
Total operating expenses	40,177	36,185	87,964	69,511
Income (loss) from operations	6,394	(4,844)	3,438	(6,994)
Interest (expense)	(2,765)	(2,620)	(5,489)	(5,204)
Other income, net	104	1,199	165	1,380
Income (loss) before income taxes	3,733	(6,265)	(1,886)	(10,818)
Income tax provision (benefit)	(1,960)	603	(1,732)	882
Net income (loss)	$ 5,693	$ (6,868)	$ (154)	$ (11,700)
Net income (loss) per share of common stock:
Basic	$ 0.06	$ (0.08)	$ 0.00	$ (0.13)
Diluted	$ 0.06	$ (0.08)	$ 0.00	$ (0.13)
Weighted average shares outstanding used in computing net income (loss) per share:
Basic	91,574	88,997	91,325	88,650
Diluted	92,569	88,997	91,325	88,650

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Stockholders' Equity

6 Months Ended

Sep. 27, 2015

Equity [Abstract]

Stockholders' Equity

6. Stockholders’ Equity

Stock Plans

In July 2011, the Company’s Board of Directors and its stockholders approved the establishment of the 2011 Stock Incentive Plan (the “2011 Plan”). The 2011 Plan provides for annual increases in the number of shares available for issuance there under on the first business day of each fiscal year, beginning with the Company’s fiscal year following the year of this offering, equal to four percent (4%) of the number of shares of the Company’s common stock outstanding as of such date, which resulted in an annual increase of 3.6 million shares for fiscal year 2016.

Under the Company’s 2011 Stock Incentive Plan (the “Plans”), the Board of Directors may grant either incentive stock options, nonqualified stock options, or stock awards to eligible persons, including employees, nonemployees, members of the Board of Directors, consultants and other independent advisors who provide services to the Company.

Incentive stock options may only be granted to employees and at an exercise price of no less than fair value on the date of grant. Nonqualified stock options may be granted at an exercise price of no less than 100% of fair value on the date of grant. For owners of more than 10% of the Company’s common stock, options may only be granted for an exercise price of not less than 110% of fair value, and these options generally expire 10 years from the date of grant. Stock options may be exercisable immediately but subject to repurchase. Stock options vest over the period determined by the Board of Directors, generally four years.

Stock option activities of the Company under the Plans are as follows (in thousands, except per share amounts):

	Options Issued and Outstanding			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (In Years)		Aggregate Intrinsic Value
Balance — March 29, 2015		8,307		$	12.99		7.60	$	29,817
Options granted		1,606			14.72
Exercised options		(361	)		6.67
Cancelled options		(344	)		13.71
Balance — September 27, 2015		9,208		$	13.51		7.59	$	5,271
Vested and expected to vest — September 27, 2015		8,335		$	13.24		7.46	$	5,268
Vested — September 27, 2015		4,210		$	11.17		6.52	$	5,193

Valuation of Stock-Based Awards

The Company applies the provisions of ASC 718-10 “Compensation—Stock Compensation” which establishes the accounting for stock-based awards based on the fair value of the award measured at grant date. Accordingly, stock-based compensation cost is recognized in the consolidated statements of income as a component of both cost of revenues and operating expenses over the requisite service period. ASC 718-10 requires tax benefits in excess of compensation cost to be reported as a financing cash flow rather than as a reduction of taxes paid. The determination of the fair value of stock-based payment awards on the date of grant using the Black-Scholes option pricing model is affected by the volatilities of a peer group of companies based on industry, stage of life cycle, size and financial leverage, actual and projected employee stock option exercise behaviors, risk-free interest rate and expected dividends. The Company used historical experience to estimate expected term. The expected volatility was based on the historical stock volatilities of the Company’s historical data with that of a peer group of publicly listed companies over a period equal to the expected terms. The risk-free interest rate is based on U.S. Treasury zero-coupon issues with remaining terms similar to the expected term. The Company does not anticipate paying any cash dividends in the foreseeable future and, therefore, uses an expected dividend yield of zero.

The aggregate intrinsic value of the stock options exercised during the three and six months ended September 27, 2015 was $0.4 million and $2.6 million respectively. The aggregate intrinsic value of the stock options exercised during the three and six months ended September 28, 2014 was $11.2 million and $14.1 million respectively. The aggregate intrinsic value was calculated as the difference between the exercise price of the stock options and the estimated fair market value of the underlying common stock at the date of exercise.

The number of options expected to vest takes into account an estimate of expected forfeitures. The remaining unamortized stock-based compensation expense, reduced for estimated forfeitures and related to non-vested options, was $19.9 million at September 27, 2015, and will be amortized over a weighted-average remaining period of approximately 2.5 years. Total unrecognized expense will be adjusted for future changes in estimated forfeitures.

The Company used the following weighted-average assumptions in determining stock-based compensation expense for options granted in the three and six months ended September 27, 2015 and September 28, 2014.

	Three Months Ended						Six Months Ended
	September 27,			September 28,			September 27,			September 28,
	2015			2014			2015			2014
Expected term (in years)		5.1			4.6			5.1			4.5
Volatility		44.4	%		41.4	%		45.1	%		41.7	%
Risk-free interest rate		1.5	%		1.5	%		1.5	%		1.4	%
Dividend rate		0	%		0	%		0	%		0	%

The weighted-average grant date fair value of the Company’s stock options granted in the three and six month ended September 27, 2015 was $5.33 and $6.06 per share, respectively. The weighted-average grant date fair value of the Company’s stock options granted in the three and six month ended September 28, 2014 was $8.71 and $7.33 per share, respectively.

Restricted Stock Units and Restricted Stock

Restricted stock unit and restricted stock activity of the Company under the Plans are as follows:

				Weighted Average
				Grant Date Fair
Restricted stock units and restricted stock activities	Shares			Value Per Share
	(in thousands, except per share amount)
Unvested at March 29, 2015		4,030		$	17.75
Granted		1,060			14.20
Released		(606	)		17.26
Forfeited		(367	)		17.39
Unvested at September 27, 2015		4,117		$	16.94

Restricted stock units and restricted stock granted to employees are generally subject to the employee’s continued service to the Company over that period. The fair value of restricted stock units and restricted stock is determined using the fair value of the Company’s common stock on the date of the grant. Compensation expense is generally recognized on a straight-line basis over the requisite service period of each grant adjusted for estimated forfeitures. At September 27, 2015, there was approximately $46.2 million of total unrecognized compensation cost related to restricted stock units and restricted stock, which the Company expects to recognize over a period of 2.8 years. The weighted-average grant-date fair value per share of restricted stock units and restricted stock awarded in the three and six months ended September 27, 2015 was $11.77 and $14.20 per share, respectively. The weighted-average grant-date fair value per share of restricted stock units and restricted stock awarded in the three and six months ended September 28, 2014 was $24.18 and $21.84 per share, respectively.

2013 Employee Stock Purchase Plan

Under the 2013 Employee Stock Purchase Plan, effective September 13, 2013, (the “ESPP”), eligible employees may apply accumulated payroll deductions, which may not exceed 10% of an employee’s compensation, to the purchase of shares of the Company’s common stock at periodic intervals. The purchase price of stock under the ESPP is equal to 85% of the lower of (i) the fair market value of the Company’s common stock on the first day of each offering period, or (ii) the fair market value of the Company’s common stock on the purchase date (as defined in the ESPP). Each offering period consists of one purchase period of approximately six months duration.

At the 2015 annual meeting of stockholders, stockholders of the Company approved an amendment to the current ESPP to increase the number of shares of common stock reserved for future issuance by 1,000,000 shares which brought the total of common stock reserved for issuance to employees to an aggregate of 1,400,000 shares. As of September 27, 2015, 289,000 shares had been purchased.

During the three and six months ended September 27, 2015, compensation expense recognized in connection with the Purchase Plan was $0.2 million and $0.5 million, respectively. During the three and six months ended September 28, 2014, compensation expense recognized in connection with the Purchase Plan was $0.2 million and $0.4 million, respectively.

Common Stock

As of September 27, 2015 and March 29, 2015, common stock reserved for future issuance was as follows:

Common stock reserved for issuance	September 27, 2015		March 29, 2015,
	(in thousands)
Stock plans
Outstanding stock options		9,208		8,307
Outstanding restricted stock units and restricted stocks		4,117		4,030
Reserved for future equity incentive grants		12,006		10,300
		25,331		22,637
Purchase plan		1,111		230
Warrants to purchase common stock		7,995		7,995
Total common stock reserved for future issuances		34,437		30,862

Stock-Based Compensation Expense

Total employee stock-based compensation cost for the Company’s stock plans for the three and six months ended September 27, 2015 and September 28, 2014 is as follows:

	Three Months Ended				Six Months Ended
	September 27,		September 28,		September 27,		September 28,
	2015		2014		2015		2014
	(in thousands)
Cost of revenue	$	584	$	654	$	1,184	$	1,311
Research and development		4,002		3,197		7,838		6,715
Selling, general and administrative		4,462		3,151		8,661		6,611
Total stock-based compensation expense	$	9,048	$	7,002	$	17,683	$	14,637

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Convertible Senior Notes

6 Months Ended

Sep. 27, 2015

Debt Disclosure [Abstract]

Convertible Senior Notes

5. Convertible Senior Notes

In November 2013, the Company issued $175.0 million aggregate principal amount of 1.75% Convertible Senior Notes due on November 1, 2018 (the “Notes”), in a private placement to qualified institutional buyers pursuant to Rule 144A under the Securities Act of 1933 (the “Securities Act”). The Notes offered have not been registered under the Securities Act, or applicable state securities laws or blue sky laws, and may not be offered or sold in the United States absent registration under the Securities Act and applicable state securities laws or available exemptions from the registration requirements.

The Notes are senior unsecured obligation of the Company and rank equally in right of payment with all of the Company’s existing and future senior unsecured indebtedness and are junior to any of the Company’s existing and future secured indebtedness. The Notes pay interest in cash semi-annually (May and November) at a rate of 1.75% per annum. Net proceeds received by the Company, after issuance costs, were approximately $169.3 million.

On or after August 1, 2018 until the maturity date, the Notes may be converted at the option of the holders. Holders may convert the Notes at their option prior to August 1, 2018 only under the following circumstances:

1) During any calendar quarter and only during such calendar quarter, if the last reported sale price of the Company’s common stock for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on the last trading day of the immediately preceding calendar quarter is greater than or equal to 130% of the conversion price of $21.89 on each applicable trading day;

2) During the five business day period after any five consecutive trading day period in which the “trading price” per $1,000 principal amount of notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price of our common stock and the conversion rate on each such trading day; or

3) Upon the occurrence of specified corporate events, including if there is a fundamental change.

Upon conversion, the Company will pay cash up to the aggregate principal amount of the notes to be converted and pay or deliver cash, shares of its own common stock or a combination of cash and shares of its own common stock, at the Company’s election, in respect of the remainder, if any, of its conversion obligation in excess of the aggregate principal amount of the notes being converted.

The conversion rate is initially 45.683 shares per $1,000 principal amount of the Notes (equivalent to an initial conversion price of approximately $21.89 per share of common stock), subject to certain adjustments.

The Notes are not redeemable by the Company prior to the maturity date. At the event of default or fundamental change, the principal amount of the notes plus accrued and unpaid interest may become due immediately at the Note holders’ option.

The Company separately accounts for the liability and equity components of the Notes. The initial debt component of the Notes was valued at $135.7 million based on the contractual cash flows discounted at an appropriate comparable market non-convertible debt borrowing rate at the date of issuance of 7.3%, with the equity component representing the residual amount of the proceeds of $39.3 million which was recorded as a debt discount. The issuance costs were allocated pro-rata based on the relative initial carrying amounts of the debt and equity components, including the Note hedges and warrants transactions described below. As a result, $2.5 million of the issuance costs was allocated to the equity component of the Notes, $3.0 million of issuance costs paid to the initial purchaser was accounted for as a debt discount and $0.25 million of the issuance costs was classified as other non-current assets. Debt issuance costs was reclassified and presented in the balance sheet as a direct deduction from the carrying value of the debt liability, consistent with the presentation of a debt discount in the first quarter of the Company’s fiscal year 2016 pertaining to the requirement of ASU 2015-03, Simplifying the Presentation of Debt Issuance Costs. The debt discount and the issuance costs allocated to the debt component are amortized as additional interest expense over the term of the Notes using the effective interest method. As of September 27, 2015, the remaining amortization period of the debt discount and the issuance costs is 3.1 years. The effective interest rate of the Notes is 7.84% per annum (1.75% coupon rate plus 6.09% of non-cash accretion expense).

Convertible Notes Hedges and Warrants

Concurrent with the issuance of the Notes on November 6 and 7, 2013, the Company purchased call options for its own common stock to hedge the Notes (the “Note Hedge”) and sold call options for its own common stock (the “Warrants”). The Note Hedges and Warrants transactions are structured to reduce the potential future economic dilution associated with the conversion of the Notes and are excluded from the computation of diluted earnings per share for each period presented, as the Company’s average stock price during each period is less than the conversion price.

The Note Hedges - On November 6 and 7, 2013, the Company purchased call options from a counterparty for an aggregate price of approximately $39.1 million, which gives the Company the right to buy from the counterparty up to approximately 8.0 million shares of the Company’s common stock at a price of $21.89 per share, subject to adjustments. The Note Hedge is exercisable upon conversion of the Note for a number of shares equal to the product of 0.045683 and amount of the converted Note. Upon exercise of the Note Hedge, the Company will receive from the counterparty cash, shares of Company’s common stock, or a combination thereof, equal to the amount by which the market price per share of the Company’s common stock exceeds $21.89 during the applicable valuation period. By the Note Hedge terms the Company will receive cash and shares in a combination that offsets share dilution caused by conversion of the Note.

Warrants - On November 6 and 7, 2013, the Company sold call options to the same counterparty for approximately $25.6 million, which gives the counterparty the right to buy from the Company up to approximately 8.0 million shares of the Company’s common stock at an exercise price of $28.66 per share, subject to adjustments, on a series of days commencing on February 1, 2019 and ending May13, 2019. Upon exercise of the Warrants, the Company has the option to deliver cash or shares of its common stock equal to the difference between the market price on the exercise date and the strike price of the warrants. Upon exercise of the Warrants, the Company will pay to the Initial Purchaser cash, shares of Company’s common stock, or a combination thereof (at the Company’s choice), equal to the amount by which the market price per share of the Company’s common stock exceeds $28.66 during the applicable valuation period.

The Note Hedges and Warrants above are classified in stockholders’ equity in the Company’s consolidated balance sheets.

The following table summarizes the principal amounts and related unamortized discount on the Notes (in thousands):

	September 27, 2015		March 29, 2015
	(in thousands)
Principal amount of the Notes	$	175,000	$	175,000
Unamortized discount on the Notes		28,233		32,190
Net carrying value	$	146,767	$	142,810

The following table presents the amount of interest expense recognized related to the Notes (in thousands):

	Three Months Ended				Six Months Ended
	September 27,		September 28,		September 27,		September 28,
	2015		2014		2015		2014
	(in thousands)
Contractual coupon interest expense	$	764	$	764	$	1,528	$	1,532
Accretion of debt discount		1,986		1,843		3,931		3,647
Amortization of debt issuance costs		13		13		26		25
Total interest expense related to the Notes	$	2,763	$	2,620	$	5,485	$	5,204

As of September 27, 2015, our aggregate future principal debt maturities are as follows (in thousands):

Fiscal Year	September 27, 2015
	(in thousands)
2016-2019	$	175,000
Total	$	175,000

The convertible notes issued by the Company in November 2013 are shown in the accompanying consolidated balance sheets at their original issuance value, net of unamortized discount, and are not marked to market each period. The approximate fair value of the convertible notes as of September 27, 2015 was $158.1 million. The fair value of the convertible notes was determined using quoted market prices for similar securities, which, due to limited trading activity, are considered Level 2 in the fair value hierarchy.

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Acquisition (Tables)

6 Months Ended

Sep. 27, 2015

Movea S.A [Member]

Summary of Purchase Price of Assets Acquired and Liabilities Assumed

The table below is a summary of the purchase price allocation of the fair value of assets acquired and liabilities assumed in connection with the acquisition of Movea (in thousands):

Cash consideration	$	60,900
Contingent consideration		8,400
	$	69,300
Allocation of purchase price:
Current assets	$	3,082
Fixed assets		209
Other non-current assets		592
Developed technology		7,200
Goodwill		68,330
Current liabilities		(5,016	)
Long-term liabilities		(5,097	)
Total preliminary purchase price	$	69,300

Summary of Estimated Fair Value and Useful Lives of Intangible Assets

The following table presents certain information on acquired identifiable intangible assets related to the Movea acquisition:

	Estimated Fair Value		Estimated Useful Life
	(in thousands)		(in years)
Developed technology	$	7,200		5

Trusted Positioning, Inc. [Member]

Summary of Purchase Price of Assets Acquired and Liabilities Assumed

The table below is a summary of the purchase price allocation for the 100% equity interest of the fair value of assets acquired and liabilities assumed in connection with the acquisition of TPI (in thousands):

Cash consideration	$	11,379
Issuance of common stock		5,703
Contingent consideration		7,634
Fair value of previously held 4.57% equity interest		1,215
	$	25,931
Allocation of purchase price:
Current assets	$	392
Fixed assets		50
Other non-current assets		546
Developed technology		8,600
Goodwill		19,893
Current liabilities		(1,247	)
Long-term liabilities		(2,303	)
Total preliminary purchase price	$	25,931

Summary of Estimated Fair Value and Useful Lives of Intangible Assets

The following table presents certain information on acquired identifiable intangible assets related to the TPI acquisition:

	Estimated Fair Value		Estimated Useful Life
	(in thousands)		(in years)
Developed technology	$	8,600		5

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Balance Sheet Details (Tables)

6 Months Ended

Sep. 27, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Inventories

Inventories at September 27, 2015 and March 29, 2015 consist of the following:

	September 27, 2015		March 29, 2015
	(in thousands)
Work in process	$	23,941	$	49,146
Finished goods		37,743		25,959
Total inventories	$	61,684	$	75,105

Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets at September 27, 2015 and March 29, 2015 consist of the following:

	September 27, 2015		March 29, 2015
	(in thousands)
Deferred tax assets	$	5,099	$	5,127
Prepaid expenses		4,175		4,280
Income tax receivable		89		1,398
Other receivables		1,707		2,675
Other current assets		2,073		1,470
Total prepaid expenses and other current assets	$	13,143	$	14,950

Property and Equipment

Property and equipment at September 27, 2015 and March 29, 2015 consist of the following:

	September 27, 2015			March 29, 2015
	(in thousands)
Production and lab equipment	$	48,717		$	47,107
Computer equipment and software		7,328			6,044
Equipment under construction		2,664			2,820
Leasehold improvements and furniture and fixtures		8,122			7,163
Subtotal		66,831			63,134
Accumulated depreciation and amortization		(27,740	)		(21,285	)
Property and equipment—net	$	39,091		$	41,849

Accrued Liabilities

Accrued liabilities at September 27, 2015 and March 29, 2015 consist of the following:

	September 27, 2015		March 29, 2015
	(in thousands)
Contingent consideration, current portion	$	3,817	$	6,364
Payroll-related expenses		8,367		7,197
Bonuses		4,051		5,352
Legal fees		12,314		921
Accrued contractual coupon interest payable on convertible senior notes		1,247		1,252
Deferred revenue		1,663		1,584
Income tax payable		547		311
Other tax payable		768		768
Acquisition-related payable		1,380		1,380
Customer deposit		1,796		900
Other accrued liabilities		7,818		5,962
Total accrued liabilities	$	43,768	$	31,991

Other Long-term Liabilities

Other long-term liabilities at September 27, 2015 and March 29, 2015 consist of the following:

	September 27, 2015		March 29, 2015
	(in thousands)
Long-term tax payable	$	14,223	$	11,918
Deferred tax liabilities		3,481		3,936
Deferred revenue		3,000		3,400
Deferred rent		3,740		3,630
Contingent consideration, noncurrent portion		—		2,760
Long-term debt		2,502		2,472
Other long-term liabilities		251		136
Total accrued liabilities	$	27,197	$	28,252

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Goodwill and Intangible Assets

6 Months Ended

Sep. 27, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

9. Goodwill and Intangible Assets

The Company monitors the recoverability of goodwill recorded in connection with acquisitions annually, or whenever events or changes in circumstances indicate the carrying value may not be recoverable. There were no changes in the carrying amount of goodwill since March 29, 2015. The Company performs the annual goodwill impairment analysis during the third quarter of each fiscal year. As of September 27, 2015, the Company concluded that the $139.2 million of goodwill was not impaired.

Purchased intangible assets subject to amortization consist primarily of developed technology, customer relationships and patents and are reported net of accumulated amortization. Developed technology, customer relationships and patents are amortized on a straight line basis over the estimated useful life of the assets. In-process research and development is assessed for impairment until the development is completed and products are available for sale. The Company expects to complete the in-process research and development projects at various dates during fiscal year 2016 at which time amortization will commence. The costs that the Company incurred on the in-process research and development projects after the acquisition were expensed. During fiscal 2015, the Company recorded $0.8 million of impairment on in-process research and development on the MEMS Microphone business. During the three and six months ended September 2015, one of the IPR&D projects was released to production. Therefore, the IPR&D value allocated to this project of $3.3 million was transferred to developed technology. Further, the estimated useful life for this technology is five years.

Amortization for acquired intangible assets for the three and six months ended September 27, 2015 was approximately $2.4 million and $4.5 million, respectively. Amortization for purchased intangible assets for the three months and six months ended September 28, 2014 was approximately $1.6 million and $2.9 million respectively. The following table represents intangible assets and accumulated amortization:

	September 27, 2015
			Accumulated
	Gross		Amortization		Net
	(in thousands)
Developed technology	$	47,610	$	12,873	$	34,737
Customer relationships		1,560		427		1,133
Patents		2,120		255		1,865
Total intangible assets subject to amortization	$	51,290	$	13,555	$	37,735

	March 29, 2015
			Accumulated
	Gross		Amortization		Net
	(in thousands)
Developed technology	$	44,320	$	8,697	$	35,623
Customer relationships		1,560		316		1,244
Patents		2,120		39		2,081
Total intangible assets subject to amortization	$	48,000	$	9,052	$	38,948

The estimated future amortization expense related to intangible assets at September 27, 2015, is as follows:

	Estimated
	Amortization
Fiscal Year	(in thousands)
2016 (reminder)	$	4,612
2017		9,225
2018		9,225
2019		9,225
2020		5,208
Thereafter		240
Total	$	37,735

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Goodwill and Intangible Assets - Estimated Future Amortization Expense Related to Intangible Assets (Detail) - USD ($) $ in Thousands	Sep. 27, 2015	Mar. 29, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
2016 (reminder)	$ 4,612
2017	9,225
2018	9,225
2019	9,225
2020	5,208
Thereafter	240
Intangible assets subject to amortization, Net	$ 37,735	$ 38,948

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Income Taxes

6 Months Ended

Sep. 27, 2015

Income Tax Disclosure [Abstract]

Income Taxes

7. Income Taxes

In the three and six months ended September 27, 2015, the Company recorded an income tax provision (benefit) of ($2.0) million and ($1.7) million, respectively. In the three and six months ended September 28, 2014, the Company recorded an income tax provision of $0.6 million and $0.9 million, respectively. The Company’s estimated 2016 effective tax rate differs from the U.S. statutory rate primarily due to foreign tax differentials, a current year loss in the U.S., and was negatively affected by an increase in non-deductible stock option expense, and other deductible federal tax attributes.

Over 90% of our revenue is derived from sales to customers located outside the U.S. A significant percentage of our pre-tax income in the three months ended September 27, 2015 and September 28, 2014 was generated internationally, primarily from our Cayman Island subsidiary, which is currently a zero tax jurisdiction. Since 2011, our Cayman Island subsidiary has procured the rights to manufacture and sell our products in non-US locations via an intercompany technology license arrangement with its U.S. parent company. In addition, the Company has not provided for U.S. federal income and foreign withholding taxes on undistributed earnings from its non-U.S. subsidiaries, as it is the practice and intention of the Company to reinvest the earnings of its non-U.S. subsidiaries in those operations. Our effective tax rate is highly dependent upon the geographic distribution of our worldwide earnings or losses, and the tax regulations in each geographic region. We expect that a large percentage of our consolidated pre-tax income will continue to be derived from, and reinvested in, our overseas operations. We anticipate that this pre-tax income will continue to be subject to foreign tax at significantly lower tax rates when compared to the United States federal statutory tax rate.

The Company had deferred tax assets related to Research and Development Credits and other tax attributes including accrued expenses and stock based compensation that can be used to offset taxable income in future periods and reduce our income taxes payable in those future periods. Realization of our deferred tax assets is dependent upon future federal, state and foreign taxable income. Many of those credit carryforwards will expire if they are not used within certain time periods. As of September 27, 2015, management determined that there is sufficient positive evidence to conclude that it is more likely than not that we will have sufficient taxable income in the future that will allow us to realize these DTAs. However, it is possible that some or all of these credits could ultimately expire unused, especially if our U.S. entity does not make a taxable profit, which has been limited mainly due to stock option deductions since the company went public. Therefore, unless we are able to generate sufficient taxable income from our U.S. operations, a substantial valuation allowance to reduce our U.S. DTAs may be required, which would materially increase our expenses in the period the allowance is recognized and materially adversely affect our results of operations and statement of financial condition. Our judgments regarding future profitability may change due to future market conditions, changes in U.S. or international tax laws and other factors. These changes, if any, may require possible material adjustments to these deferred tax assets, resulting in a reduction in net income or an increase in net loss in the period when such determinations are made.

The Company has not provided for U.S. federal income and foreign withholding taxes on undistributed earnings from non-U.S. operations as of September 27, 2015.

The Company has recorded $14.2 million of uncertain tax positions within “Other long-term liabilities” on the condensed consolidated balance sheet as at September 27, 2015. The Company does not expect any significant increases or decreases to its unrecognized tax benefits within the next twelve months. While management believes that the Company has adequately provided for all tax positions, amounts asserted by tax authorities could be greater or less than the recorded position. Accordingly, the Company’s provisions on federal, state and foreign tax-related matters to be recorded in the future may change as revised estimates are made or the underlying matters are settled or otherwise resolved.

The Company is in the process of an Internal Revenue Service (“IRS”) examination for tax years 2011, 2012, 2013 and 2014. The Company may be subject to examination by California for tax years 2010 and forward. Generally, the Company is subject to routine examination for tax years 2008 and forward in various foreign tax jurisdictions in which it operates.

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Acquisition

6 Months Ended

Sep. 27, 2015

Business Combinations [Abstract]

Acquisition

8. Acquisition

The Company completed two acquisitions in fiscal 2015 and one acquisition in fiscal 2014. The acquisitions have been accounted for using the acquisition method of accounting in accordance with ASC 805—Business Combinations. Under the acquisition method of accounting, the total purchase consideration of the acquisition is allocated to the tangible assets and identifiable intangible assets and liabilities assumed based on their relative fair values. The excess of the purchase consideration over the net tangible and identifiable intangible assets is recorded as goodwill, and was derived from expected benefits from future technology development, synergies and the knowledgeable and experienced workforce who joined the Company after the acquisition.

Movea S.A

On July 22, 2014, the Company acquired 100% equity interest of Movea, a company formed under the laws of France, and a leading provider of software for ultra-low power location, activity tracking and context sensing. The acquisition of Movea further scales the Company’s leadership in motion software.

The Company paid $60.9 million in cash as consideration for the acquisition and could pay an additional $13.0 million in cash contingent upon the achievement of certain milestones within one year of the acquisition.

The table below is a summary of the purchase price allocation of the fair value of assets acquired and liabilities assumed in connection with the acquisition of Movea (in thousands):

Cash consideration	$	60,900
Contingent consideration		8,400
	$	69,300
Allocation of purchase price:
Current assets	$	3,082
Fixed assets		209
Other non-current assets		592
Developed technology		7,200
Goodwill		68,330
Current liabilities		(5,016	)
Long-term liabilities		(5,097	)
Total preliminary purchase price	$	69,300

The purchase price included $2.6 million of long-term debt which was included in the long-term liabilities. The debt was measured at fair value using the effective interest rate method and considered as Level 3 inputs as defined in the fair value hierarchy, which approximates carrying value as of September 27, 2015.

The purchase price includes contingent considerations of (i) $8.0 million payable in cash to the former Movea shareholders upon a design win with a major smartphone manufacturer within one year of closing date, and (ii) $5.0 million payable in cash to the former Movea shareholders upon a specific product development milestone before December 29, 2014. The fair value of the contingent consideration of $8.4 million was derived from a probability weighted earn-out model of future contingent payments and recorded in accrued liabilities. The product development milestone of $5.0 million was achieved and the payment was made in fiscal 2015. The difference between the contractual amount of $5.0 million and the fair value of this contingent consideration was recorded in the research and development expense for the year ended March 29, 2015. During the six months ended September 27, 2015, the fair value of contingent consideration for Movea declined by $4.0 million. The decline in fair value was the result of a reduction in the probability of a design win milestone associated with the Movea acquisition from 50% to 0%. The decline in fair value of the design win milestones for Movea was recorded as a credit to research and development expense.

The purchase price exceeded the fair value of the net tangible and identifiable intangible assets acquired and, as a result, the Company recorded goodwill in connection with this transaction. The acquisition will provide assembled workforce and synergy with other of the Company’s offerings. These factors primarily contributed to a purchase price that resulted in goodwill.

The following table presents certain information on acquired identifiable intangible assets related to the Movea acquisition:

	Estimated Fair Value		Estimated Useful Life
	(in thousands)		(in years)
Developed technology	$	7,200		5

The fair value of developed technology was determined using a cost approach, which includes an estimate of time and expenses required to recreate the intangible asset. The fair value of developed technology was capitalized as of the acquisition date and will be amortized using a straight-line method to cost of revenue over the estimated useful life of five years.

Trusted Positioning, Inc.

On August 29, 2014, the Company completed the acquisition of Trusted Positioning, Inc., (“TPI”), a Canadian corporation, which is an indoor/outdoor positioning software company to provide ‘Positioning Everywhere’. The acquisition of TPI, particularly its advanced location tracking software, strengthens the Company’s position as a provider of intelligent sensor System on Chips (SoC) for the fast growing mobile market.

The Company’s acquisition of TPI was completed through a step acquisition. In fiscal 2014, the Company made investments totaling $0.3 million to own approximately 4.57% of TPI’s outstanding common stock. On August 29, 2014, the Company purchased the remaining outstanding common stock of TPI for a total consideration of $25.9 million. The total purchase price, as presented in the table below, consists of (i) cash of $11.4 million, (ii) issuance of 236,000 shares of the Company’s common stock with a fair value of $5.7 million, (iii) contingent considerations with a combined fair value of $7.6 million payable upon TPI’s achievement of certain product development milestones, and (iv) initial investments with a fair value of $1.2 million.

The table below is a summary of the purchase price allocation for the 100% equity interest of the fair value of assets acquired and liabilities assumed in connection with the acquisition of TPI (in thousands):

Cash consideration	$	11,379
Issuance of common stock		5,703
Contingent consideration		7,634
Fair value of previously held 4.57% equity interest		1,215
	$	25,931
Allocation of purchase price:
Current assets	$	392
Fixed assets		50
Other non-current assets		546
Developed technology		8,600
Goodwill		19,893
Current liabilities		(1,247	)
Long-term liabilities		(2,303	)
Total preliminary purchase price	$	25,931

The purchase price includes contingent consideration comprised of (i) $5.0 million payable upon a design win within one year of acquisition, (ii) $3.0 million payable upon achieving a development milestone before December 29, 2014, (iii) $2.0 million payable upon successful development of cloud application within two years of acquisition and (iv) $2.0 million upon first deployment of cloud application which is expected within one year of successful development of cloud application. The contingent considerations, which was derived from a probability weighted earn-out model of future contingent payments, have a combined fair value of $7.6 million, of which $4.9 million was recorded in accrued liabilities and $2.7 million was recorded in other long-term liabilities. The development milestone of $3 million was achieved and the payment was made in fiscal 2015. The difference between the contractual amount of $3.0 million and the fair value of this contingent consideration was recorded in the research and development expense for the year ended March 29, 2015.

During the six months ended September 27, 2015, the fair value of contingent consideration for TPI declined by $1.3 million. The decline in fair value was the result of a reduction in the probability of a design win associated with the TPI acquisition from 50% to 0%. The decline in fair value of the design win milestones for TPI was $2.4 million which was recorded as a credit to research and development expense. Offsetting this amount is an increase in the fair value of two TPI cloud application milestones as a result of an increase in the estimated probability of achievement of those milestones. The increase in the fair value of the cloud application milestones was $1.1 million which was recorded as a debit to research and development expense.

The following table presents certain information on acquired identifiable intangible assets related to the TPI acquisition:

	Estimated Fair Value		Estimated Useful Life
	(in thousands)		(in years)
Developed technology	$	8,600		5

The fair value of developed technology was determined using a cost approach, which includes an estimate of time and expenses required to recreate the intangible asset. The fair value of developed technology was capitalized as of the acquisition date and will be amortized using a straight-line method to cost of revenue over the estimated useful life of 5 years.

In connection with the acquisition of TPI, the Company recorded a non-cash gain of approximately $0.9 million resulting from the difference between carrying value of its initial investments in TPI of $0.3 million and fair value of such investments of $1.2 million, as of the acquisition date. This non-cash gain is recorded in “Other income, net” on the Condensed Consolidated Statement of Operations in fiscal 2015.

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Organization and Summary of Significant Accounting Policies (Policies)

6 Months Ended

Sep. 27, 2015

Accounting Policies [Abstract]

Business

Business

InvenSense, Inc. (the “Company”) was incorporated in California in June 2003 and reincorporated in Delaware in January 2004. The Company designs, develops, markets and sells sensor systems on a chip, including accelerometers, gyroscopes and microphones for the mobile, wearable, smart home, gaming, industrial, and automotive market segments.

These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and the notes thereto for the fiscal year ended March 29, 2015 included in the Company’s Annual Report on Form 10-K filed on May 28, 2015 with the Securities and Exchange Commission (“SEC”). No material changes have been made to the Company’s significant accounting policies since the Company’s Annual Report on Form 10-K for the fiscal year ended March 29, 2015.

Certain Significant Business Risks and Uncertainties

Certain Significant Business Risks and Uncertainties

The Company participates in the high-technology industry and believes that adverse changes in any of the following areas could have a material effect on the Company’s future financial position, results of operations, or cash flows: reliance on a limited number of primary customers to support the Company’s revenue generating activities; advances and trends in new technologies and industry standards; market acceptance of the Company’s products; development of sales channels; strategic relationships, including key component suppliers; litigation or claims against the Company based on intellectual property, patent, product, regulatory, or other factors; and the Company’s ability to attract and retain employees necessary to support its growth.

Basis of Consolidation

Basis of Consolidation

The consolidated financial statements have been prepared in conformity with U.S. generally accepted accounting principles (“GAAP”), and include our accounts and the accounts of our wholly-owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. The functional currency of each of the Company’s subsidiaries is the U.S. dollar. Foreign currency gains or losses are recorded as other income (expense), net, in the condensed consolidated statements of operations.

Fiscal Year

Fiscal Year

The Company’s fiscal year is a 52 or 53 week period ending on the Sunday closest to March 31. The Company’s most recent fiscal year (“Fiscal 2015”) ended on March 29, 2015 (“March 2015”). The second fiscal quarter in each of the two most recent fiscal years ended on September 27, 2015 (“three months ended September 27, 2015”) and September 28, 2014 (“three months ended September 28, 2014”), respectively, and each quarter period included 13 weeks. Fiscal year 2016 is a 53-week fiscal year. The extra week is included in our fourth fiscal quarter ended April 3, 2016.

Basis of Presentation

Basis of Presentation

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with GAAP and applicable rules and regulations of the SEC regarding interim financial reporting. Certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations.

The condensed consolidated balance sheet as of March 29, 2015, included herein was derived from the audited financial statements as of that date, but does not include all disclosures required by GAAP. The unaudited interim condensed consolidated financial statements, in the opinion of management, reflect all normal recurring adjustments necessary to present fairly the Company’s financial position, results of operations, comprehensive income (loss) and cash flows for the interim periods. The results of operations for the period ended September 27, 2015 is not necessarily indicative of the results to be expected for the fiscal year ending April 3, 2016 or for any future year or interim period.

Use of Estimates

Use of Estimates

The preparation of the Company’s Condensed Consolidated Financial Statements and notes thereto in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the Condensed Consolidated Financial Statements and notes thereto and the reported amounts of income and expenses during the reporting period. Significant estimates included in the Consolidated Financial Statements and notes thereto include income taxes, inventory valuation, stock-based compensation, goodwill, loss contingencies, warranty reserves, valuation of acquired assets and contingent consideration, and valuation of convertible senior notes, including the related convertible notes hedges and warrants. These estimates are based upon information available as of the date of the consolidated financial statements, and actual results could differ from those estimates.

Goodwill

Goodwill

Goodwill represents the excess of the purchase price over the fair value of the net tangible and identifiable intangible assets acquired in a business combination. In accordance with Accounting Standard Codification 350, the Company reviews goodwill for impairment at the reporting unit level on an annual basis or whenever events or changes in circumstances indicate the carrying value may not be recoverable. As the Company uses the market approach to assess impairment, its common stock price is an important component of the fair value calculation. The Company has determined that it has a single reporting unit for purposes of performing its goodwill impairment test. The Company performed its annual impairment test during the quarter ended December 28, 2014 and determined that its goodwill was not impaired.

Concentration of Credit Risk

Concentration of Credit Risk

The majority of the Company’s products are shipped through its distributors or contract manufacturers, which are the legal counter-party on the sale. When the Company references customers, sales and revenue in this report, the Company is referring to the manufacturers of consumer electronics devices that are the end customer for our products. However, any disclosure about the composition of the Company’s accounts receivable refers to the intermediary, which is the legal counter party in a particular contract. Some of the Company’s intermediaries may serve more than one of the Company’s customers. As a result, attempting to compare or correlate disclosures about our accounts receivable composition as of a particular date with the disclosures regarding revenues generated by our customers for the period ending on the same date can be difficult or misleading.

A distributor and a customer accounted for 49% and 20% of accounts receivable, respectively, at September 27, 2015. A distributor and a customer accounted for 38% and 26% of accounts receivable, respectively, at March 29, 2015.

For the three months ended September 27, 2015, one customer accounted for 34% of total net revenue and one customer accounted for 19% of total net revenue. For the six months ended September 27, 2015, one customer accounted for 36% of total net revenue and one customer accounted for 21% of total net revenue. For the three months ended September 28, 2014, one customer accounted for 29% of total net revenue and one customer accounted for 26% of total net revenue. For the six months ended September 28, 2014, one customer accounted for 30% of total net revenue, one customer accounted for 17% of total net revenue and the third customers accounted for 10% of total net revenue.

Warranty

Warranty

The Company offers one year standard warranty to its products. In selective cases, the warranty period could be extended to multiple years. The Company’s accrual for anticipated warranty costs has increased primarily due to an increase in unit sales volume and a commensurate increase in the volume of product returned under the warranty agreements. The accrual also includes management’s judgment regarding anticipated rates of warranty claims and associated repair costs. The following table summarizes the activity related to product warranty liability during the six months ended September 27, 2015 and September 28, 2014:

	Six Months Ended
	September 27, 2015			September 28, 2014
	(in thousands)
Beginning balance	$	341		$	80
Provision for warranty		421			103
Adjustments related to changes in estimate		(204	)		(96	)
Less: actual warranty costs		(82	)		(15	)
Ending balance	$	476		$	72

Net Income (Loss) Per Share

Net Income (Loss) Per Share

Basic net income per share is computed by dividing net income (loss) by the weighted average number of shares outstanding during the period, which excludes dilutive unvested restricted stock. Diluted net income per share is computed by dividing net income (loss) by the weighted average number of shares outstanding, including unvested restricted stock, certain warrants to purchase common stock and potential dilutive shares from the dilutive effect of outstanding stock options using the treasury stock method. In periods in which the Company has reported a net loss, the common stock equivalents are excluded from the calculation of diluted net loss per share of common stock as their effect is antidilutive under the treasury stock method.

The following table presents the calculation of basic and diluted net loss per share:

	Three Months Ended					Six Months Ended
	September 27, 2015		September 28, 2014			September 27, 2015			September 28, 2014
	(in thousands, except per share data)
Numerator:
Basic and Diluted
Net income (loss)	$	5,693	$	(6,868	)	$	(154	)	$	(11,700	)
Denominator:
Basic shares:
Weighted-average shares used in computing basic net income (loss) per share		91,574		88,997			91,325			88,650
Diluted shares:
Weighted-average shares used in computing basic net income (loss) per share		91,574		88,997			91,325			88,650
Effect of potentially dilutive securities:
Stock options and unvested restricted stock		995		—			—			—
Common stock warrants		—		—			—			—
Weighted-average shares used in computing diluted net income (loss) per share		92,569		88,997			91,325			88,650
Net income (loss) per share
Basic	$	0.06	$	(0.08	)	$	(0.00	)	$	(0.13	)
Diluted	$	0.06	$	(0.08	)	$	(0.00	)	$	(0.13	)

The following summarizes the potentially dilutive securities outstanding at the end of each period that were excluded from the computation of diluted net loss per share for the periods presented as their effect would have been antidilutive:

	Three Months Ended				Six Months Ended
	September 27, 2015		September 28, 2014		September 27, 2015		September 28, 2014
	(in thousands)
Employee stock options		7,382		8,665		9,059		8,635
Unvested restricted stock units		2,989		3,660		4,204		3,537
Total antidilutive securities		10,371		12,325		13,263		12,172

Segment Information

Segment Information

The Company operates in one operating segment by designing, developing, manufacturing and marketing sensor systems on a chip. The Chief Executive Officer has been identified as the Chief Operating Decision Maker as defined by Financial Accounting Standards Board’s ASC 280 “Segment Reporting”. Enterprise-wide information is provided in accordance with ASC 280. Geographical revenue information is based on the location of our customers’ head offices. Property and equipment information is based on the physical location of the assets at the end of each fiscal period.

Property and equipment by country were as follows:

Country	September 27, 2015		March 29, 2015
	(in thousands)
United States	$	9,542	$	9,442
Taiwan		27,915		31,334
Other		1,634		1,073
	$	39,091	$	41,849

Net revenue from unaffiliated customers by country was as follows:

	Three Months Ended				Six Months Ended
Region	September 27, 2015		September 28, 2014		September 27, 2015		September 28, 2014
	(in thousands)
United States	$	42,913	$	29,622	$	86,716	$	37,452
Korea		24,469		35,058		53,192		63,970
China		26,010		12,546		50,616		29,906
Japan		8,028		5,939		12,164		9,733
Taiwan		7,576		5,185		10,762		12,795
Rest of world		3,549		1,845		5,391		3,020
	$	112,545	$	90,195	$	218,841	$	156,876

Recent Accounting Pronouncements

Recent Accounting Pronouncements

On July 22, 2015, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2015-11, the FASB issued final guidance that simplifies the subsequent measurement of inventories by replacing today’s lower of cost or market test with a lower of cost and net realizable value test. The guidance applies only to inventories for which cost is determined by methods other than last-in first-out and the retail inventory method. Entities that use last-in, first-out or retail inventory method will continue to use existing impairment models. The guidance is effective for public business entities for fiscal years beginning after December 15, 2016, and interim periods within those fiscal years. The Company does not expect this guidance to have significant impact on its consolidated financial statements.

On August 18, 2015, the FASB issued ASU No. 2015-15, the ASU states that the Securities and Exchange Commission (“SEC”) staff would not object to an entity deferring and presenting debt issuance costs as an asset and subsequently amortizing deferred debt issuance costs ratably over the term of the line-of-credit arrangement, regardless of whether there are outstanding borrowings under that line-of-credit arrangement. For public business entities, ASU 2015-15 is effective concurrent with adoption of ASU No. 2015-03 which is effective for financial statements issued for fiscal years beginning after December 15, 2015, and interim periods within those fiscal years. The FASB issued ASU 2015-03, Simplifying the Presentation of Debt Issuance Costs on April 7, 2015. ASU 2015-03 requires debt issuance costs to be presented in the balance sheet as a direct deduction from the carrying value of the associated debt liability, consistent with the presentation of a debt discount. The Company does not expect this guidance to have significant impact on its consolidated financial statements.

On September 25, 2015, the FASB issued ASU 2015-16, the new guidance eliminates the requirement that an acquirer in a business combination account for measurement-period adjustments retrospectively. An acquirer will recognize a measurement-period adjustment during the period in which it determines the amount of the adjustment. The guidance is effective for public business entities for fiscal years beginning after December 15, 2015, and interim periods within those fiscal years. The Company does not expect this guidance to have significant impact on its consolidated financial statements.

Fair Value Measurements

The Company applies the provisions of ASC 820-10, “Fair Value Measurements”. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (i.e., the “exit price”) in an orderly transaction between market participants at the measurement date. As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or liability. ASC 820-10 requires disclosure that establishes a framework for measuring fair value and expands disclosure about fair value measurements. The standard describes a fair value hierarchy based on three levels of inputs that may be used to measure fair value. The inputs for the first two levels are considered observable and the last is unobservable and include the following:

Level 1—Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities;

Level 2—Quoted prices in markets that are not active, or inputs which are observable, either directly or indirectly, for substantially the full term of the asset or liability; or

Level 3—Unobservable inputs in which there is little or no market data, and as a result, prices or valuation techniques are employed that require inputs that are significant to the fair value measurement.

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Cash Equivalents and Available-for-Sale Investments - Summary of Significant Unobservable Inputs used in Fair Value Measurement on Recurring Basis (Detail)	6 Months Ended
	Sep. 27, 2015
Fair Value Disclosures [Abstract]
Valuation techniques, Description	Present value of a Probability Weighted Earn-out model using an appropriate discount rate.
Significant unobservable inputs, Description	Estimate of achieving the milestones.

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Stockholders' Equity - Common Stock Reserved for Future Issuance (Detail) - shares shares in Thousands	Sep. 27, 2015	Mar. 29, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future issuance	25,331	22,637
Purchase plan	1,111	230
Warrants to purchase common stock	7,995	7,995
Total common stock reserved for future issuances	34,437	30,862
Employee Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future issuance	9,208	8,307
Restricted Stock Units and Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future issuance	4,117	4,030
Reserved for Future Equity Incentive Grants [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future issuance	12,006	10,300

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Convertible Senior Notes (Tables)

6 Months Ended

Sep. 27, 2015

Debt Disclosure [Abstract]

Summary of Principal Amounts and Related Unamortized Discount on Notes

The following table summarizes the principal amounts and related unamortized discount on the Notes (in thousands):

	September 27, 2015		March 29, 2015
	(in thousands)
Principal amount of the Notes	$	175,000	$	175,000
Unamortized discount on the Notes		28,233		32,190
Net carrying value	$	146,767	$	142,810

Schedule of Interest Expense Recognized Related to Notes

The following table presents the amount of interest expense recognized related to the Notes (in thousands):

	Three Months Ended				Six Months Ended
	September 27,		September 28,		September 27,		September 28,
	2015		2014		2015		2014
	(in thousands)
Contractual coupon interest expense	$	764	$	764	$	1,528	$	1,532
Accretion of debt discount		1,986		1,843		3,931		3,647
Amortization of debt issuance costs		13		13		26		25
Total interest expense related to the Notes	$	2,763	$	2,620	$	5,485	$	5,204

Schedule of Aggregate Future Principal Debt Maturities

As of September 27, 2015, our aggregate future principal debt maturities are as follows (in thousands):

Fiscal Year	September 27, 2015
	(in thousands)
2016-2019	$	175,000
Total	$	175,000

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Organization and Summary of Significant Accounting Policies - Summary of Activity Related to Product Warranty Liability (Detail) - USD ($) $ in Thousands	6 Months Ended
	Sep. 27, 2015	Sep. 28, 2014
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]
Beginning balance	$ 341	$ 80
Provision for warranty	421	103
Adjustments related to changes in estimate	(204)	(96)
Less: actual warranty costs	(82)	(15)
Ending balance	$ 476	$ 72

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Stockholders' Equity - Weighted-Average Assumptions in Determining Stock-Based Compensation Expense Options Granted (Detail) - Employee Stock Options [Member]	3 Months Ended		6 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Expected term (in years)	5 years 1 month 6 days	4 years 7 months 6 days	5 years 1 month 6 days	4 years 6 months
Volatility	44.40%	41.40%	45.10%	41.70%
Risk-free interest rate	1.50%	1.50%	1.50%	1.40%
Dividend rate	0.00%	0.00%	0.00%	0.00%

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Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Sep. 27, 2015	Jun. 28, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Commitments and Contingencies Disclosure [Abstract]
Non-cancelable operating leases terms				The Company has non-cancelable operating leases for its facilities through fiscal year 2022.
Operating leases, expiration date				2022
Rental expense, net of rent income from subleases	$ 1,200		$ 1,200	$ 2,600	$ 2,300
Rental income from subleases	400			700
Future minimum payments under purchase commitments	$ 55,700			55,700
Upfront payment				11,500
Pre-tax charge		$ 11,708		$ 11,708

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Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 5,693	$ (6,868)	$ (154)	$ (11,700)
Other comprehensive income (loss):
Unrealized gain (loss) on available-for-sale securities, net of tax	(59)	(52)	(98)	39
Comprehensive income (loss)	$ 5,634	$ (6,920)	$ (252)	$ (11,661)

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Commitments and Contingencies

6 Months Ended

Sep. 27, 2015

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

4. Commitments and Contingencies

Operating Lease Obligations

The Company has non-cancelable operating leases for its facilities through fiscal year 2022.

Future minimum lease payments, net of future minimum lease income, under operating leases as of September 27, 2015 are as follows:

	Amount
Fiscal Years Ending:	(in thousands)
2016 (remainder)	$	2,456
2017		5,172
2018		6,357
2019		6,544
2020		5,197
Beyond		1,823
Total	$	27,549

The Company’s lease agreements provide for rental payments which have certain lease incentives and graduated rental payments. As a result, the rent expense is recognized on a straight-line basis over the term of the lease. The Company’s rental expense under operating leases, net of the rent income from subleases of $0.4 million and $0.7 million, was approximately $1.2 million and $2.6 million for the three and six months ended September 27, 2015, respectively. The Company’s rental expense under operating leases was approximately $1.2 million and $2.3 million for the three and six months ended September 28, 2014, respectively.

Purchase Commitments

The Company has non-cancelable purchase commitments with its foundry vendors. Future minimum payments of $55.7 million under the purchase commitments as of September 27, 2015 are less then twelve months.

Legal Proceedings and Contingencies

From time to time the Company is involved in litigation that the Company believes is of the type common to companies engaged in our line of business, including intellectual property and employment issues.

In January and March of 2015, purported shareholders filed five substantially similar class action complaints in the U.S. District Court, Northern District of California against the Company and two of the Company’s current and former executives (“Class Action Defendants”) (Jim McMillan v. InvenSense, Inc., et al. Case No. 3:15-cv-00084-JD, filed January 7, 2015; William Lendales v. InvenSense, Inc. et al., Case No. 3:15-cv-00142-VC, filed on January 12, 2015; Plumber & Steamfitters Local 21 Pension Fund v. InvenSense, Inc., et al., Case No. 5:15-cv-00249-BLF, filed on January 16, 2015; William B. Davis vs. InvenSense, Inc., et al., Case No. 5:15-cv-00425-RMW, filed on January 29, 2015; and Saratoga Advantage Trust Technology & Communications Portfolio v. InvenSense et al., Case No. 3:15-cv-01134, filed on March 11, 2015). On April 23, 2015, those cases were consolidated into a single proceeding which is currently pending in the U.S. District Court, Northern District of California and captioned In re InvenSense, Inc. Securities Litigation, Case No. 3:15-cv-00084-JD (the “Securities Case”), and the Vossen Group was designated as lead plaintiff. On May 26, 2015, the lead plaintiffs filed a consolidated amended class action complaint, which alleges that the defendants violated the federal securities laws by making materially false and misleading statements regarding our business results between July 29, 2014 and October 28, 2014, and seeks unspecified damages along with plaintiff’s costs and expenses, including attorneys’ fees. On June 25, 2015, the Class Action Defendants filed a motion seeking dismissal of the case and a hearing on that motion was held on October 7, 2015.

In addition, in January and March of 2015, other purported shareholders filed three substantially similar shareholder derivative complaints against two of our current and former officers and several of our current directors, twice in the U.S. District Court, Northern District of California and once in Santa Clara Superior Court (George E Rollins v. Behrooz Abdi et al., Case No. 5:15-cv-00184-PSG, filed on January 13, 2015; Linda Karr v. Behrooz Abdi et al., Case No. 5:15-cv-00200-NC, filed on January 14, 2015; and Robert Bilbrey v. Behrooz Abdi et al., Case No. 1-15-CV-278742 was filed on March 20, 2015) (collectively, the “Derivative Cases”). In the Derivative Cases complaints, the plaintiffs make allegations similar to those presented in the Securities Case, but the plaintiff asserts various state law causes of action, including claims of breach of fiduciary duty and unjust enrichment. The Company has undertaken an evaluation of these complaints. Plaintiffs in the Derivative Cases have agreed to an indefinite stay pending developments in the Securities Case. In light of the unresolved legal issues, while a loss is reasonably possible, the amount of any potential loss cannot be estimated. At this stage, the Company is unable to predict the outcome of this matter and, accordingly, cannot estimate the potential financial impact on the Company’s business, operating results, cash flows or financial position.

The semiconductor and MEMS industries are characterized by companies that hold large numbers of patents and other intellectual property rights and that vigorously pursue, protect and enforce intellectual property rights.

Robert Bosch GmbH (“Bosch”), one of the Company’s competitors, and the Company have each previously made generalized assertions of potential patent infringement by the other. On October 28, 2015, the Company and Bosch resolved all assertions of potential infringement between them and entered into a multi-year, worldwide patent cross license agreement for MEMS and sensor technologies, excluding patents covering InvenSense’s CMOS-MEMS eutectic bonding production process and Bosch’s two-layer porous silicon production process, and an upfront payment of $11.5 million to Bosch. The other terms of the settlement and the patent cross license agreement remain confidential and are not expected to have a material impact on our future results. Based on the status of the negotiations, the Company recognized a pre-tax charge of $11.7 million during the quarter ended June 28, 2015. In the future, other third parties may assert against the Company and its customers and distributors, their patent and other intellectual property rights to technologies that are important to our business.

The Company is not aware of any other pending legal matters or claims, individually or in the aggregate, that is expected to have a material adverse impact on its consolidated financial position, results of operations, or cash flows. However, the Company’s analysis of whether a claim may proceed to litigation cannot be predicted with certainty, nor can the results of litigation be predicted with certainty. Nevertheless, defending any of these actions, regardless of the outcome, may be costly, time consuming, distract management personnel, and have a negative effect on our business. An adverse outcome in any of these actions, including a judgment or settlement, may cause a material adverse effect on our future business, operating results, and/or financial condition.

The Company indemnifies certain customers, distributors, suppliers and subcontractors for attorney fees and damages and costs awarded against such parties in certain circumstances in which the Company’s products are alleged to infringe third-party intellectual property rights, including patents, registered trademarks or copyrights. Indemnification costs are charged to operations as incurred.

The Company’s Third Amended and Restated Bylaws require the Company to indemnify its directors and officers and employees to the fullest extent permitted by the Delaware General Corporation Law (DGCL). In addition, the Company’s current directors, including the Company’s chief executive officer and certain executive officers, have entered into separate indemnification agreements with the Company. The Company’s Second Amended and Restated Certificate of Incorporation, as amended, limits the liability of directors to the Company or its stockholders to the fullest extent permitted by the DGCL. The obligation to indemnify generally means that the Company is required to pay or reimburse the individuals’ reasonable legal expenses and possibly damages and other liabilities incurred in connection with these matters.

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Goodwill and Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014	Mar. 29, 2015
Finite-Lived Intangible Assets [Line Items]
Goodwill	$ 139,175		$ 139,175		$ 139,175
Intangible assets, net	41,005		41,005		45,508
Amortization for acquired intangible assets	2,400	$ 1,600	4,503	$ 2,895
In-Process Research And Development [Member]
Finite-Lived Intangible Assets [Line Items]
Write-off of in-process research and development					$ 800
Developed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, net	$ 3,300		$ 3,300
Estimated useful life			5 years

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Organization and Summary of Significant Accounting Policies - Calculation of Basic and Diluted Net Loss Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Basic and Diluted
Net income (loss)	$ 5,693	$ (6,868)	$ (154)	$ (11,700)
Basic shares:
Weighted-average shares used in computing basic net income (loss) per share	91,574	88,997	91,325	88,650
Diluted shares:
Weighted-average shares used in computing basic net income (loss) per share	91,574	88,997	91,325	88,650
Effect of potentially dilutive securities:
Stock options and unvested restricted stock	995
Common stock warrants	0	0	0	0
Weighted-average shares used in computing diluted net income (loss) per share	92,569	88,997	91,325	88,650
Net income (loss) per share
Basic	$ 0.06	$ (0.08)	$ 0.00	$ (0.13)
Diluted	$ 0.06	$ (0.08)	$ 0.00	$ (0.13)

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Balance Sheet Details - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Balance Sheet Related Disclosures [Abstract]
Depreciation expense	$ 3,200	$ 2,600	$ 6,245	$ 4,310

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Commitments and Contingencies (Tables)

6 Months Ended

Sep. 27, 2015

Commitments and Contingencies Disclosure [Abstract]

Future Minimum Lease Payments, Net of Future Minimum Lease Income under Operating Leases

Future minimum lease payments, net of future minimum lease income, under operating leases as of September 27, 2015 are as follows:

	Amount
Fiscal Years Ending:	(in thousands)
2016 (remainder)	$	2,456
2017		5,172
2018		6,357
2019		6,544
2020		5,197
Beyond		1,823
Total	$	27,549