sien-ex991

Completed Acquisition of Miramar Labs and Making Significant Progress with Integration

Santa Barbara, CA – November 7, 2017 – Sientra, Inc. (NASDAQ: SIEN) (“Sientra” or the “Company”), a medical aesthetics company, today announced its financial results for the third quarter ended September 30, 2017.

Jeffrey M. Nugent, Chairman and Chief Executive Officer of Sientra, said, “We continue to advance on each of our strategic initiatives, highlighted by the completion of the FDA inspection of our U.S. manufacturing facility in late October. We are finalizing all remaining documentation to submit to the FDA that would enable us to still get approval by the end of this year per statutory review windows. However, given the unanticipated delay in the commencement of the site inspection, we could see the approval slip into the first quarter of 2018. Based on our confidence of receiving approval, we also began manufacturing commercial ready finished goods at our facility in early October in anticipation of FDA approval and we will continue building inventory of our highest demand products in parallel with the FDA review process.”

Mr. Nugent continued, “During the quarter, in addition to continued growth in our Breast Products segment, we also made good progress with the integration, re-positioning, and optimization of the miraDry^® business. This includes initiating the process of enhancing the miraDry treatment protocol to make it faster and easier for a broader group of physicians and patients, along with completing the build out of our sales leadership team, which will allow us to continue expanding both our capital and consumable sales force. In all, we remain well positioned to rapidly

grow our miraDry business as we move into 2018 and re-launch our entire breast implant line.”

Beginning this quarter, the Company will be reporting results in two segments, Breast Products and miraDry. The Breast Products segment will include the Company’s breast implant portfolio, tissue expander portfolio, and scar management products. The miraDry segment will include the miraDry business, the acquisition of which was completed on July 25, 2017. The Company is now consolidating financials from the miraDry segment.

Total net sales for the third quarter 2017 were $9.8 million, compared to total net sales of $6.5 million for the same period in 2016. On a Pro Forma basis, assuming the Miramar Labs acquisition was completed on July 1, 2017, total net sales were $10.7 million for the third quarter 2017.

Net sales for the Breast Products segment totaled $7.7 million in the third quarter 2017, a 17% increase compared to $6.5 million for third quarter 2016, driven by the Company’s acquisition of the Specialty Surgical Products tissue expander portfolio, completed in the fourth quarter of 2016. Net sales for the miraDry segment in the third quarter of 2017 totaled $2.2 million under GAAP, and $3.0 million on a Pro Forma basis assuming the Miramar Labs acquisition was completed on July 1, 2017.

Gross profit for the third quarter 2017 was $6.3 million, or 65% of sales, compared to gross profit of $4.7 million, or 72% of sales, for the same period in 2016. The decrease was primarily due to the inclusion of miraDry, which carries a lower margin than Breast Products.

Operating expenses for the third quarter 2017 were $20.2 million, compared to operating expenses of $14.5 million for the same period in 2016. Operating expenses in the third quarter 2017 were driven higher by Miramar related acquisition costs as well as the inclusion of miraDry operating expenses subsequent to the acquisition.

Net loss for the third quarter 2017 was $14.4 million, compared to $10.0 million for the same period in 2016.

On a non-GAAP basis, the Company reported adjusted EBITDA loss of $(11.0) million for the third quarter 2017, compared to an adjusted EBITDA loss of $(8.5) million for the third quarter 2016.

Net cash and cash equivalents as of September 30, 2017 were $37.6 million compared to $55.5 million at the end of the second quarter 2017. During the quarter, the Company paid a one-time legal settlement payment of $9 million related to the previously announced settlement with its former breast implant contract manufacturer.

Additional information on the Company’s financial results can be found in Sientra’s Supplemental Financial and Operational Information schedule by visiting the Investor Relations section of Sientra’s website at www.sientra.com.

Sientra will hold a conference call today, Tuesday, November 7, 2017 at 1:30 p.m. PT/4:30 p.m. ET to discuss the results.

The dial-in numbers are (844) 464-3933 for domestic callers and (765) 507-2612 for international callers. The conference ID is 6798858. A live webcast of the conference call will be available on the Investor Relations section of the Company's website at www.sientra.com.

Sientra has supplemented its US GAAP net sales and net income (loss) with a Pro Forma net sales and non-GAAP measure of Adjusted EBITDA. Management believes that these Pro Forma and non-GAAP financial measures provide useful supplemental information to management and investors regarding the performance of the Company, facilitates a more meaningful comparison of results for current periods with previous operating results, and assists management in analyzing future trends, making strategic and business decisions and establishing internal budgets and forecasts. Tables showing Pro Forma net sales and a reconciliation of non-GAAP Adjusted EBITDA to GAAP net income (loss), the most directly comparable GAAP measure, are provided in the schedules below.

There are limitations in using non-GAAP financial measures because they are not prepared in accordance with GAAP and may be different from non-GAAP financial measures used by other companies. These non-GAAP financial measures

should not be considered in isolation or as a substitute for GAAP financial measures. Investors and potential investors should consider non-GAAP financial measures only in conjunction with Sientra’s financial statements prepared in accordance with GAAP and the reconciliations of the non-GAAP financial measures provided in the schedules below.

Headquartered in Santa Barbara, California, Sientra is a medical aesthetics company committed to making a difference in patients’ lives by enhancing their body image, growing their self-esteem and restoring their confidence. The Company was founded to provide greater choice to board-certified plastic surgeons and patients in need of medical aesthetics products. The Company has developed a broad portfolio of products with technologically differentiated characteristics, supported by independent laboratory testing and strong clinical trial outcomes. The Company sells its breast implants and breast tissue expanders exclusively to board-certified and board-admissible plastic surgeons and tailors its customer service offerings to their specific needs. The Company also offers a range of other aesthetic and specialty products including BIOCORNEUM^®, the professional choice in scar management, and miraDry, the only FDA cleared device to reduce underarm sweat, odor and permanently reduce hair of all colors.

This press release contains “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, based on management’s current assumptions and expectations of future events and trends, which affect or may affect the Company’s business, strategy, operations or financial performance, and actual results may differ materially from those expressed or implied in such statements due to numerous risks and uncertainties. Forward-looking statements include, but are not limited to, statements regarding the timing of FDA approval of the Company’s new manufacturing facility, the expected benefits of the Miramar acquisition, the Company’s ability to become a world class, diversified aesthetics organization, and the timing of the re-launch of the Company’s breast implants. Such statements are subject to risks and uncertainties, including the dependence on positive reaction from plastic surgeons and their patients and risks associated with contracting with any third-party manufacturer and supplier, including uncertainties that a PMA Supplement or other regulatory requirements will be timely approved by the FDA or other applicable regulatory authorities and that the

integration of recently acquired product lines will not achieve the anticipated benefits. Additional factors that could cause actual results to differ materially from those contemplated in this press release can be found in the Risk Factors section of Sientra’s most recently filed Quarterly Report on Form 10-Q and its Annual Report on Form 10-K for the year ended December 31, 2016. All statements other than statements of historical fact are forward-looking statements. The words ‘‘believe,’’ ‘‘may,’’ ‘‘might,’’ ‘‘could,’’ ‘‘will,’’ ‘‘aim,’’ ‘‘estimate,’’ ‘‘continue,’’ ‘‘anticipate,’’ ‘‘intend,’’ ‘‘expect,’’ ‘‘plan,’’ or the negative of those terms, and similar expressions that convey uncertainty of future events or outcomes are intended to identify estimates, projections and other forward-looking statements. Estimates, projections and other forward-looking statements speak only as of the date they were made, and, except to the extent required by law, the Company undertakes no obligation to update or review any estimate, projection or forward-looking statement.

	September 30,		December 31,
	2017		2016
Assets
Current assets:
Cash and cash equivalents	$	37,641	$	67,212
Accounts receivable, net		4,678		3,082
Inventories, net		23,069		18,484
Insurance recovery receivable		75		9,375
Prepaid expenses and other current assets		4,074		1,852
Total current assets		69,537		100,005
Property and equipment, net		4,360		2,986
Goodwill		12,507		4,878
Other intangible assets, net		19,504		6,186
Other assets		736		228
Total assets	$	106,644	$	114,283
Liabilities and Stockholders’ Equity
Current liabilities:
Accounts payable	$	3,990	$	3,555
Accrued and other current liabilities		13,669		6,507
Legal settlement payable		1,000		10,900
Customer deposits		5,572		6,559
Total current liabilities		24,231		27,521
Long-term debt		24,747		—
Deferred and contingent consideration		12,341		1,637
Warranty reserve and other long-term liabilities		1,718		1,508
Total liabilities		63,037		30,666
Stockholders’ equity:
Total stockholders’ equity		43,607		83,617
Total liabilities and stockholders’ equity	$	106,644	$	114,283

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2017			2016			2017			2016
Net sales	$	9,819		$	6,531		$	25,477		$	14,246
Cost of goods sold		3,484			1,814			8,427			4,319
Gross profit		6,335			4,717			17,050			9,927
Operating expenses:
Sales and marketing		7,981			5,137			21,100			16,533
Research and development		2,911			2,052			7,677			7,370
General and administrative		9,298			5,684			23,753			16,327
Legal settlement		—			1,618			10,000			1,618
Total operating expenses		20,190			14,491			62,530			41,848
Loss from operations		(13,855	)		(9,774	)		(45,480	)		(31,921	)
Other income (expense), net:
Interest income		54			16			112			47
Interest expense		(409	)		(105	)		(603	)		(118	)
Other income (expense), net		(155	)		(52	)		(151	)		(54	)
Total other income (expense), net		(510	)		(141	)		(642	)		(125	)
Loss before income taxes		(14,365	)		(9,915	)		(46,122	)		(32,046	)
Income taxes		16			48			70			48
Net loss	$	(14,381	)	$	(9,963	)	$	(46,192	)	$	(32,094	)
Basic and diluted net loss per share attributable to common stockholders	$	(0.74	)	$	(0.55	)	$	(2.42	)	$	(1.77	)
Weighted average outstanding common shares used for net loss per share attributable to common stockholders:
Basic and diluted		19,328,244			18,208,112			19,079,788			18,111,593

*The results for the 3 and 9 months ended September 30, 2017 includes Miramar as of the acquisition date of July 25, 2017

	Nine Months Ended
	September 30,
	2017			2016
Cash flows from operating activities:
Net loss	$	(46,192	)	$	(32,094	)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization		2,037			734
Provision for doubtful accounts		84			384
Provision for warranties		133			133
Provision for inventory		468			519
Amortization of acquired inventory step-up		802			—
Change in fair value of warrants		151			57
Change in fair value of deferred and contingent consideration		758			—
Non-cash portion of debt extinguishment loss		16			—
Amortization of debt discount and issuance costs		97			—
Non-cash interest expense		1			23
Stock-based compensation expense		4,777			2,630
Loss on disposal of property and equipment		12			124
Deferred income taxes		70			48
Changes in assets and liabilities, net of effects from acquisitions:
Accounts receivable		411			1,053
Inventories		1,208			1,136
Insurance recovery receivable		9,300			(9,282	)
Prepaid expenses, other current assets and other assets		(2,083	)		(58	)
Accounts payable		(478	)		(986	)
Accrued and other liabilities		3,613			460
Legal settlement payable		(9,900	)		10,900
Customer deposits		(987	)		(3,288	)
Net cash used in operating activities		(35,702	)		(27,507	)
Cash flows from investing activities:
Purchase of property and equipment		(1,173	)		(916	)
Business acquisitions, net of cash acquired		(18,455	)		(6,759	)
Net cash used in investing activities		(19,628	)		(7,675	)
Proceeds from exercise of stock options		1,327			910
Proceeds from issuance of common stock under ESPP		647			753
Tax payments related to shares withheld for vested restricted stock units (RSUs)		(569	)		—
Gross borrowings under the Term Loan		25,000			—
Gross borrowings under the Revolving Line of Credit		5,000			—
Payment on the Revolving Line of Credit		(5,000	)		—
Deferred financing costs		(646	)		—
Net cash provided by financing activities		25,759			1,663
Net decrease in cash and cash equivalents		(29,571	)		(33,519	)
Cash and cash equivalents at:
Beginning of period		67,212			112,801
End of period	$	37,641		$	79,282

Supplemental disclosure of cash flow information:
Interest paid	$	305		$	96
Supplemental disclosure of non-cash investing and financing activities:
Property and equipment in accounts payable and accrued liabilities		700			140
Acquisition of business, deferred and contingent consideration obligations at fair value		10,912			550
Forgiveness of SVB Loan commitment fee		750			—

*The results for the 9 months ended September 30, 2017 includes Miramar as of the acquisition date of July 25, 2017

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
Dollars, in thousands	2017			2016			2017			2016
Net loss, as reported	$	(14,381	)	$	(9,963	)	$	(46,192	)	$	(32,094	)
Adjustments to net loss:
Interest (income) expense and other, net		510			141			642			125
Provision for income taxes		16			48			70			48
Depreciation and amortization - COGS		425			—			847			—
Depreciation and amortization - G&A		692			242			1,614			593
Depreciation and amortization - S&M		30			28			106			77
Depreciation and amortization - R&D		115			39			272			64
Stock-based compensation		1,595			966			4,777			2,630
Legal settlement		-			-			10,000			-
Total adjustments to net loss		3,383			1,464			18,328			3,537
Adjusted EBITDA	$	(10,998	)	$	(8,499	)	$	(27,864	)	$	(28,557	)

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
As a Percentage of Revenue**	2017			2016			2017			2016
Net loss, as reported		(146.5	%)		(152.5	%)		(181.3	%)		(225.3	%)
Adjustments to net loss:
Interest (income) expense and other, net		5.2	%		2.2	%		2.5	%		0.9	%
Provision for income taxes		0.2	%		0.7	%		0.3	%		0.3	%
Depreciation and amortization - COGS		4.3	%		0.0	%		3.3	%		0.0	%
Depreciation and amortization - G&A		7.0	%		3.7	%		6.3	%		4.2	%
Depreciation and amortization - S&M		0.3	%		0.4	%		0.4	%		0.5	%
Depreciation and amortization - R&D		1.2	%		0.6	%		1.1	%		0.4	%
Stock-based compensation		16.2	%		14.8	%		18.8	%		18.5	%
Legal settlement		0.0	%		0.0	%		39.3	%		0.0	%
Total adjustments to net loss		34.5	%		22.4	%		71.9	%		24.8	%
Adjusted EBITDA		(112.0	%)		(130.1	%)		(109.4	%)		(200.5	%)

*The results for the 3 and 9 months ended September 30, 2017 includes Miramar as of the acquisition date of July 25, 2017. Therefore, results will not tie out to the Supplemental Financial & Operational Information Schedule which is on a Non-GAAP Pro Forma basis for all periods presented