Filed by First Midwest Bancorp, Inc. Pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: First Midwest Bancorp, Inc. (Registration Statement No. 333-213532)
	FOR IMMEDIATE RELEASE

FIRST MIDWEST BANCORP, INC. ANNOUNCES

2016THIRD QUARTER RESULTS

ITASCA, IL, October 18, 2016 - First Midwest Bancorp, Inc. (the "Company" or "First Midwest") (NASDAQ NGS: FMBI), the holding company of First Midwest Bank (the "Bank"), today reported results of operations and financial condition for the third quarter of 2016. Net income for the third quarter of 2016 was $28.4 million, or $0.35 per share. This compares to $25.3 million, or $0.31 per share, for the second quarter of 2016, and $23.3 million, or $0.30 per share, for the third quarter of 2015. Performance for the third and second quarters of 2016 was impacted by acquisition and integration related pre-tax expenses of $1.2 million and $618,000, respectively. In addition, a pre-tax gain of $5.5 million was recorded in the third quarter of 2016 as a result of the completion of the Company's sale-leaseback transaction announced during the quarter. Excluding these transactions, earnings per share was $0.32 for the third quarter of 2016, consistent with the second quarter of 2016.

SELECT THIRD QUARTER HIGHLIGHTS

• Increased earnings per share to $0.35, up 13% from the second quarter of 2016 and 17% from third quarter of 2015.

• Grew fee-based revenues to $38 million, an increase of 7% from the second quarter of 2016 and 16% from the third quarter of 2015.

• Improved efficiency ratio⁽¹⁾ to 61%, consistent with the second quarter of 2016 and down from 63% for the third quarter of 2015.

• Expanded total loans to $8 billion, up 10% annualized from June 30, 2016 and 18% from September 30, 2015.

• Grew average core deposits to $8 billion, up 2% from the second quarter of 2016 and 12% from the third quarter of 2015.

• Completed the Company's previously announced sale-leaseback transaction, which resulted in proceeds of $150 million and a pre-tax gain of $5.5 million in the third quarter of 2016.

• Enhanced total capital to risk-weighted assets to 12.3%, which benefited from the issuance of $150 million of 5.875% subordinated notes.

"Performance for the quarter was once again strong," said Michael L. Scudder, President and Chief Executive Officer of First Midwest Bancorp, Inc. "Operating performance for the quarter reflected robust production across our sales platforms and continued focus on improving our efficiency. Measured expansion of our lending capabilities continues to provide diversified portfolio growth. Additionally, we moved to strengthen our capital foundation, enhancing our future capacity for growth."

Mr. Scudder continued, "As we look to close the year, our underlying business momentum is building and aided by the strength of our balance sheet. Our pending acquisition of Standard Bank and Trust Company remains on track and will further position us as the premier market leader in metro Chicago. As always, we remain centered on those actions which help our clients to achieve financial success, enhance the value of our franchise, and inure to the long-term benefit of our shareholders."

⁽¹⁾ The efficiency ratio is a Non-GAAP financial measure. For details on the calculation, see the sections titled "Non-GAAP Financial Information" and "Non-GAAP Reconciliations" presented later in this release.

SIGNIFICANT THIRD QUARTER EVENTS

Sale-Leaseback Transaction

On September 27, 2016, the Bank completed a sale-leaseback transaction, whereby the Bank sold to Oak Street Real Estate Capital, LLC ("Oak Street"), for an aggregate cash purchase price of $150.3 million, 55 properties owned and operated by the Bank as branches. Upon the sale of the branches to Oak Street, the Bank concurrently entered into triple net lease agreements with certain affiliates of Oak Street for each of the branches sold. Subject to the right of the Bank to terminate certain of the lease agreements at the end of the eleventh year, the lease agreements have initial terms of 14 years. Each lease agreement provides the Bank with five consecutive renewal options of five years each. The sale-leaseback transaction resulted in a pre-tax gain of $88.0 million, net of transaction related expenses, of which $5.5 million was immediately recognized in earnings with the remaining $82.5 million to be accreted into income on a straight-line basis over the initial terms of the leases. The Company expects the investment of proceeds and the gain from the sale of the branches, net of occupancy expenses associated with the branches, will be modestly accretive to the Company's earnings over the initial term of the lease agreements.

Issuance of Subordinated Notes

On September 29, 2016, the Company completed the issuance and sale of $150.0 million aggregate principal amount of its 5.875% subordinated notes due 2026. Interest on the notes is payable semiannually beginning on March 29, 2017. The Company received proceeds of $146.5 million, net of underwriting discounts and commissions and issuance costs. The Company expects to use the net proceeds to repay at maturity the entire $115.0 million aggregate principal amount outstanding of its 5.875% senior notes due November 22, 2016, plus accrued interest, and for other general corporate purposes.

ACQUISITION

Standard Bancshares, Inc.

On June 28, 2016, the Company entered into a definitive agreement to acquire Standard Bancshares, Inc. ("Standard"), the holding company for Standard Bank and Trust Company. With the acquisition, the Company would acquire 35 banking offices primarily in the southwest Chicago suburbs and adjacent markets in northwest Indiana. As of June 30, 2016, Standard had total assets of approximately $2.5 billion with $2.2 billion in deposits, of which over 90% were core deposits, and $1.8 billion in loans, of which 80% were commercial-related. If the merger is completed, the merger consideration to Standard shareholders will be Company common stock, with an overall transaction value of approximately $365 million as of the date of announcement. The acquisition is expected to close in late 2016 or early 2017, subject to customary regulatory approvals and closing conditions, as well as Company and Standard shareholder approval.

OPERATING PERFORMANCE

Net Interest Income and Margin Analysis

(Dollar amounts in thousands)

	Quarters Ended
	September 30, 2016							June 30, 2016							September 30, 2015
	Average Balance			Interest Earned/ Paid			Yield/ Rate (%)	Average Balance			Interest Earned/ Paid			Yield/ Rate (%)	Average Balance			Interest Earned/ Paid			Yield/ Rate (%)
Assets:
Other interest-earning assets	$	282,101		$	472		0.67	$	300,945		$	426		0.57	$	820,318		$	645		0.31
Securities (1)	1,896,195			10,752			2.27	1,721,781			10,636			2.47	1,194,711			9,559			3.20
Federal Home Loan Bank ("FHLB") and   Federal Reserve Bank ("FRB") stock	51,451			261			2.03	42,561			200			1.88	38,748			369			3.81
Loans (1)(2)	8,067,900			88,500			4.36	7,883,806			87,481			4.46	6,887,611			76,328			4.40
Total interest-earning assets (1)	10,297,647			99,985			3.87	9,949,093			98,743			3.99	8,941,388			86,901			3.86
Cash and due from banks	150,467							154,693							132,504
Allowance for loan losses	(84,088		)					(80,561		)					(73,928		)
Other assets	958,299							945,291							875,668
Total assets	$	11,322,325						$	10,968,516						$	9,875,632
Liabilities and Stockholders' Equity:
Interest-bearing core deposits (3)	$	5,090,820		1,086			0.08	$	4,941,779		991			0.08	$	4,465,956		931			0.08
Time deposits	1,248,425			1,434			0.46	1,277,694			1,491			0.47	1,173,127			1,398			0.47
Borrowed funds	605,177			1,782			1.17	461,363			1,499			1.31	168,807			928			2.18
Senior and subordinated debt	166,101			2,632			6.30	162,836			2,588			6.39	201,083			3,133			6.18
Total interest-bearing liabilities	7,110,523			6,934			0.39	6,843,672			6,569			0.39	6,008,973			6,390			0.42
Demand deposits (3)	2,806,851							2,771,813							2,601,442
Total funding sources	9,917,374							9,615,485							8,610,415
Other liabilities	143,249							117,534							130,250
Stockholders' equity - common	1,261,702							1,235,497							1,134,967
Total liabilities and   stockholders' equity	$	11,322,325						$	10,968,516						$	9,875,632
Tax-equivalent net interest   income/margin (1)				93,051			3.60				92,174			3.72				80,511			3.58
Tax-equivalent adjustment				(2,079		)					(2,193		)					(2,609		)
Net interest income (GAAP)				$	90,972						$	89,981						$	77,902

⁽¹⁾ Interest income and yields on tax-exempt securities and loans are presented on a tax-equivalent basis, assuming a federal income tax rate of 35%. The corresponding income tax impact related to tax-exempt items is recorded in income tax expense. These adjustments have no impact on net income. For details on the calculation of tax-equivalent net interest income, see the sections titled "Non-GAAP Financial Information" and "Non-GAAP Reconciliations" presented later in this release.

⁽²⁾ Includes loans acquired through Federal Deposit Insurance Corporation ("FDIC")-assisted transactions subject to loss sharing agreements ("covered loans"), which totaled $24.3 million, $27.2 million, and $51.2 million at September 30, 2016, June 30, 2016, and September 30, 2015, respectively.

⁽³⁾ See the Deposit Composition table presented later in this release for average balance detail by category.

For the third quarter of 2016, total average interest-earning assets rose $348.6 million from the second quarter of 2016 and $1.4 billion from the third quarter of 2015. The increase from both prior periods presented resulted from organic loan growth and security purchases. In addition, the rise in average interest-earning assets compared to the third quarter of 2015 was impacted by interest-earning assets acquired in the NI Bancshares Corporation ("NI Bancshares") transaction late in the first quarter of 2016 and the Peoples Bancorp, Inc. ("Peoples") transaction late in the fourth quarter of 2015.

Average funding sources increased by $301.9 million from the second quarter of 2016 and $1.3 billion from the third quarter of 2015. Compared to the second quarter of 2016, the rise resulted primarily from the addition of $200.0 million of FHLB advances and seasonally higher levels of interest-bearing core deposits and demand deposits. Deposits acquired in the NI Bancshares and Peoples transactions and the addition of $462.5 million of FHLB advances contributed to the increase in average funding sources compared to the third quarter of 2015.

Tax-equivalent net interest margin for the current quarter was 3.60%, decreasing 12 basis points from the second quarter of 2016 and increasing 2 basis points from the third quarter of 2015. The decline in tax-equivalent net interest margin from the second

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quarter of 2016 was due primarily to the redeployment of the typical third quarter seasonal increase of municipal tax deposits into investments, the continued shift in the loan mix to floating rate loans, and a modest decline in acquired loan accretion. Compared to the third quarter of 2015, the increase in tax-equivalent net interest margin was driven by higher accretion on acquired loans and the maturity of $38.5 million of subordinated notes early in the second quarter of 2016, which were partially offset by the continued shift in the loan mix to floating rate loans.

Net interest income increased by 4.4% on an annualized basis from the second quarter of 2016 and 16.8% compared to the third quarter of 2015. The rise in net interest income from the second quarter of 2016 resulted primarily from growth in interest-earning assets, which more than offset the decline in margin. Compared to the third quarter of 2015, the increase in net interest income was driven primarily by organic loan growth and the acquisition of interest-earning assets from the NI Bancshares and Peoples transactions.

Acquired loan accretion contributed $3.8 million, $3.9 million, and $1.8 million to net interest income for the third quarter of 2016, the second quarter of 2016, and the third quarter of 2015, respectively.

Fee-based Revenues and Total Noninterest Income Analysis

(Dollar amounts in thousands)

	Quarters Ended						September 30, 2016 Percent Change From
	September 30, 2016		June 30, 2016		September 30, 2015		June 30, 2016		September 30, 2015
Service charges on deposit accounts	$	10,708	$	10,169	$	10,519	5.3		1.8
Wealth management fees	8,495		8,642		7,222		(1.7	)	17.6
Card-based fees	7,332		7,592		6,868		(3.4	)	6.8
Merchant servicing fees	3,319		3,170		3,207		4.7		3.5
Mortgage banking income	3,394		1,863		1,402		82.2		142.1
Other service charges, commissions, and fees	5,218		4,498		3,900		16.0		33.8
Total fee-based revenues	38,466		35,934		33,118		7.0		16.1
Net gain on sale-leaseback transaction	5,509		—		—		—		100.0
Net securities gains	187		23		524		713.0		(64.3	)
Other income	1,691		1,865		1,372		(9.3	)	23.3
Total noninterest income	$	45,853	$	37,822	$	35,014	21.2		31.0

Total fee-based revenues of $38.5 million grew by $2.5 million, or 7.0%, compared to the second quarter of 2016, and $5.3 million, or 16.1%, compared to the third quarter of 2015. Higher mortgage banking income and sales of capital market products to commercial clients within other service charges, commissions, and fees drove the majority of the increase compared to both prior periods presented. Mortgage banking income rose as a result of $107.3 million in sales of 1-4 family mortgage loans in the secondary market during the third quarter of 2016, compared to $52.1 million in the second quarter of 2016 and $42.2 million in the third quarter of 2015. The rise in service charges on deposit accounts compared to the second quarter of 2016 reflects seasonally higher activity. Card-based fees declined modestly from the second quarter of 2016 due to normal seasonality. Compared to the third quarter of 2015, services provided to customers acquired in the NI Bancshares and Peoples transactions contributed to the increase.

During the third quarter of 2016, the Company completed a sale-leaseback transaction of 55 branches that resulted in a pre-tax gain of $88.0 million, net of transaction related expenses, of which $5.5 million was immediately recognized and the remaining $82.5 million was deferred and will be accreted against lease expense over the initial terms of the leases.

Total noninterest income of $45.9 million grew 21.2% and 31.0% from the second quarter of 2016 and the third quarter of 2015, respectively.

4

Noninterest Expense Analysis

(Dollar amounts in thousands)

	Quarters Ended									September 30, 2016 Percent Change From
	September 30, 2016			June 30, 2016			September 30, 2015			June 30, 2016		September 30, 2015
Salaries and employee benefits:
Salaries and wages	$	37,872		$	37,916		$	33,554		(0.1	)	12.9
Retirement and other employee benefits	8,500			8,351			7,807			1.8		8.9
Total salaries and employee benefits	46,372			46,267			41,361			0.2		12.1
Net occupancy and equipment expense	10,755			9,928			9,406			8.3		14.3
Professional services	6,772			5,292			6,172			28.0		9.7
Technology and related costs	3,881			3,669			3,673			5.8		5.7
Merchant card expense	2,857			2,724			2,722			4.9		5.0
Advertising and promotions	1,941			1,927			1,828			0.7		6.2
Cardholder expenses	1,515			1,512			1,354			0.2		11.9
Net other real estate owned ("OREO") expense	313			1,122			1,290			(72.1	)	(75.7	)
Other expenses	7,310			8,295			6,559			(11.9	)	11.4
Total noninterest expense excluding   acquisition and integration related   expenses (1)	81,716			80,736			74,365			1.2		9.9
Acquisition and integration related expenses	1,172			618			—			89.6		100.0
Total noninterest expense	$	82,888		$	81,354		$	74,365		1.9		11.5
Efficiency ratio (2)	61		%	61		%	63		%

⁽¹⁾ See the Non-GAAP Financial Information discussion for detail.

⁽²⁾ The efficiency ratio expresses noninterest expense, excluding OREO expense, as a percentage of tax-equivalent net interest income plus total fee-based revenues, other income, and tax-equivalent adjusted bank-owned life insurance ("BOLI") income. In addition, acquisition and integration related pre-tax expenses of $1.2 million and $618,000 are excluded from the efficiency ratio for the third and second quarters of 2016, respectively. For details on the calculation of the efficiency ratio, see the sections titled "Non-GAAP Financial Information" and "Non-GAAP Reconciliations" presented later in this release.

The efficiency ratio was consistent at 61% compared to the second quarter of 2016 and improved from 63% for the third quarter of 2015. Excluding acquisition and integration related expenses, total noninterest expense increased by 1.2% from the second quarter of 2016 and 9.9% compared to the third quarter of 2015.

Compared to the second quarter of 2016, the rise in net occupancy and equipment expense was driven primarily by seasonally higher utilities, as well as increases in computer processing and software maintenance contracts. The increase in professional services from the second quarter of 2016 was impacted by lower than normal loan remediation expenses in the second quarter of 2016 and also reflects the variability in the timing of these expenditures. Net OREO expense decreased from the second quarter of 2016 due to reduced valuation adjustments and lower operating expenses. Other expenses were lower in the third quarter of 2016 due primarily to the change in the reserve for unfunded commitments compared to the third quarter of 2016.

The operations associated with the NI Bancshares and Peoples transactions contributed to approximately half of the increase from third quarter of 2015. These costs primarily occurred within salaries and employee benefits expense, net occupancy and equipment expense, professional services, and other expense. In addition, compensation costs associated with merit increases and investments in additional talent and systems to support organizational growth contributed to the rise compared to the third quarter of 2015.

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LOAN PORTFOLIO AND ASSET QUALITY

Loan Portfolio Composition

(Dollar amounts in thousands)

	As of						September 30, 2016 Percent Change From
	September 30, 2016		June 30, 2016		September 30, 2015		June 30, 2016		September 30, 2015
Commercial and industrial	$	2,849,399	$	2,699,742	$	2,392,860	5.5		19.1
Agricultural	409,571		401,858		393,732		1.9		4.0
Commercial real estate:
Office, retail, and industrial	1,537,038		1,529,675		1,414,077		0.5		8.7
Multi-family	625,305		587,104		539,308		6.5		15.9
Construction	401,857		371,016		192,086		8.3		109.2
Other commercial real estate	970,855		1,000,655		869,748		(3.0	)	11.6
Total commercial real estate	3,535,055		3,488,450		3,015,219		1.3		17.2
Total corporate loans	6,794,025		6,590,050		5,801,811		3.1		17.1
Home equity	733,260		722,881		647,223		1.4		13.3
1-4 family mortgages	388,145		415,581		294,261		(6.6	)	31.9
Installment	232,030		223,845		131,185		3.7		76.9
Total consumer loans	1,353,435		1,362,307		1,072,669		(0.7	)	26.2
Covered loans	24,322		27,180		51,219		(10.5	)	(52.5	)
Total loans	$	8,171,782	$	7,979,537	$	6,925,699	2.4		18.0

Total loans grew by 9.6% on an annualized basis from June 30, 2016 and 13.7% from September 30, 2015, excluding loans acquired in the NI Bancshares transaction of $299.7 million. Compared to both prior periods presented, growth in commercial and industrial loans reflects broad-based increases within our middle market and sector-based lending business units. Multi-family loans increased compared to both prior periods due to organic growth. The rise in construction loans compared to both prior periods was driven mainly by select commercial projects for which permanent financing is expected upon their completion.

Growth in consumer loans compared to September 30, 2015 was due to the continued expansion of mortgage and installment loans, as well as the addition of shorter-duration, floating rate home equity loans. Compared to June 30, 2016, sales of 1-4 family mortgages on the secondary market more than offset organic growth in consumer loans.

6

Asset Quality

(Dollar amounts in thousands)

	As of									September 30, 2016 Percent Change From
	September 30, 2016			June 30, 2016			September 30, 2015			June 30, 2016		September 30, 2015
Asset quality, excluding covered loans and covered OREO
Non-accrual loans	$	43,797		$	36,859		$	32,308		18.8		35.6
90 days or more past due loans, still accruing   interest	4,318			5,406			4,559			(20.1	)	(5.3	)
Total non-performing loans	48,115			42,265			36,867			13.8		30.5
Accruing troubled debt restructurings   ("TDRs")	2,368			2,491			2,771			(4.9	)	(14.5	)
OREO	27,986			29,452			31,129			(5.0	)	(10.1	)
Total non-performing assets	$	78,469		$	74,208		$	70,767		5.7		10.9
30-89 days past due loans	$	25,849		$	22,770		$	28,629
Non-accrual loans to total loans	0.54		%	0.46		%	0.47		%
Non-performing loans to total loans	0.59		%	0.53		%	0.54		%
Non-performing assets to total loans plus   OREO	0.96		%	0.93		%	1.02		%
Allowance for Credit Losses
Allowance for loan losses	$	85,308		$	80,105		$	72,500
Reserve for unfunded commitments	1,000			1,400			1,225
Total allowance for credit losses	$	86,308		$	81,505		$	73,725
Allowance for credit losses to total loans (1)	1.06		%	1.02		%	1.06		%
Allowance for credit losses to loans, excluding   acquired loans	1.13		%	1.11		%	1.14		%
Allowance for credit losses to non-accrual   loans, excluding covered loans	194.11		%	217.34		%	215.45		%

⁽¹⁾ This ratio includes acquired loans that are recorded at fair value through an acquisition adjustment, which incorporates credit risk as of the acquisition date with no allowance for credit losses being established at that time. As the acquisition adjustment is accreted into income over future periods, an allowance for credit losses on acquired loans is established as necessary to reflect credit deterioration.

Non-accrual loans increased by $6.9 million from June 30, 2016, due primarily to the transfer of a corporate loan relationship to non-accrual status during the third quarter of 2016, for which the Bank believes it is adequately collateralized.

Total non-performing assets represented 0.96% of total loans and OREO at September 30, 2016, compared to 0.93% at June 30, 2016 and down from 1.02% at September 30, 2015.

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Charge-Off Data

(Dollar amounts in thousands)

	Quarters Ended
	September 30, 2016			% of Total		June 30, 2016			% of Total		September 30, 2015			% of Total
Net loan charge-offs (1):
Commercial and industrial	$	1,145		23.9		$	1,450		28.3		$	1,601		52.3
Agricultural	—			—		—			—		—			—
Office, retail, and industrial	2,151			44.9		1,633			31.8		457			14.9
Multi-family	(69		)	(1.4	)	83			1.6		67			2.2
Construction	(9		)	(0.2	)	(12		)	(0.2	)	(114		)	(3.7	)
Other commercial real estate	415			8.7		810			15.8		92			3.0
Consumer	1,162			24.2		1,164			22.7		959			31.3
Covered	—			—		2			—		1			—
Total net loan charge-offs	$	4,795		100.0		$	5,130		100.0		$	3,063		100.0
Net loan charge-offs to average   loans, annualized:
Quarter-to-date	0.24		%			0.26		%			0.18		%
Year-to-date	0.24		%			0.24		%			0.33		%

⁽¹⁾ Amounts represent charge-offs, net of recoveries.

DEPOSIT PORTFOLIO

Deposit Composition

(Dollar amounts in thousands)

	Average for Quarters Ended						September 30, 2016 Percent Change From
	September 30, 2016		June 30, 2016		September 30, 2015		June 30, 2016		September 30, 2015
Demand deposits	$	2,806,851	$	2,771,813	$	2,601,442	1.3		7.9
Savings deposits	1,655,604		1,655,566		1,471,003		—		12.5
NOW accounts	1,754,330		1,615,677		1,405,371		8.6		24.8
Money market accounts	1,680,886		1,670,536		1,589,582		0.6		5.7
Core deposits	7,897,671		7,713,592		7,067,398		2.4		11.7
Time deposits and other	1,248,425		1,277,694		1,173,127		(2.3	)	6.4
Total deposits	$	9,146,096	$	8,991,286	$	8,240,525	1.7		11.0

Average core deposits of $7.9 billion for the third quarter of 2016 increased by 2.4% and 11.7% compared to the second quarter of 2016 and the third quarter of 2015, respectively. The rise in average core deposits compared to the second quarter of 2016 resulted primarily from a seasonal increase in average municipal deposits. Compared to the third quarter of 2015, the rise reflects the impact of the core deposits assumed in the NI Bancshares and Peoples transactions, and organic growth.

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CAPITAL MANAGEMENT

Capital Ratios

	As of
	September 30, 2016		June 30, 2016		December 31, 2015		September 30, 2015
Company regulatory capital ratios:
Total capital to risk-weighted assets	12.25	%	10.68	%	11.15	%	11.43	%
Tier 1 capital to risk-weighted assets	9.89	%	9.83	%	10.28	%	10.55	%
Common equity Tier 1 ("CET1") to risk-weighted assets	9.38	%	9.32	%	9.73	%	10.00	%
Tier 1 capital to average assets	8.90	%	8.94	%	9.40	%	9.29	%
Company tangible common equity ratios (1)(2):
Tangible common equity to tangible assets	8.04	%	8.29	%	8.59	%	8.50	%
Tangible common equity, excluding other comprehensive loss, to   tangible assets	8.16	%	8.37	%	8.89	%	8.67	%
Tangible common equity to risk-weighted assets	9.13	%	9.14	%	9.29	%	9.70	%

⁽¹⁾ These ratios are not subject to formal Federal Reserve regulatory guidance.

⁽²⁾ Tangible common equity ("TCE") represents common stockholders' equity less goodwill and identifiable intangible assets. See the accompanying Non-GAAP Reconciliations for details of the calculation of these ratios.

The Company's total capital to risk-weighted assets was 12.25% as of September 30, 2016, increasing compared to the prior periods presented due primarily to the issuance of $150.0 million of subordinated notes during the third quarter of 2016.

The Board of Directors approved a quarterly cash dividend of $0.09 per common share during the third quarter of 2016, which is consistent with the quarterly dividend paid to shareholders in the second quarter of 2016 and follows a dividend increase from $0.08 to $0.09 per common share during the first quarter of 2015.

Conference Call

A conference call to discuss the Company's results, outlook, and related matters will be held on Wednesday, October 19, 2016 at 11:00 A.M. (ET). Members of the public who would like to listen to the conference call should dial (877) 507-0639 (U.S. domestic) or (412) 317-6003 (International) and ask for the First Midwest Bancorp, Inc. Earnings Conference Call. The number should be dialed 10 to 15 minutes prior to the start of the conference call. There is no charge to access the call. The conference call will also be accessible as an audio webcast through the Investor Relations section of the Company's website, www.firstmidwest.com/investorrelations. For those unable to listen to the live broadcast, a replay will be available on the Company's website or by dialing (877) 344-7529 (U.S. domestic) or (412) 317-0088 (International) conference ID 10094285 beginning one hour after completion of the live call until 9:00 A.M. (ET) on October 27, 2016. Please direct any questions regarding obtaining access to the conference call to First Midwest Bancorp, Inc. Investor Relations, via e-mail, at investor.relations@firstmidwest.com.

Press Release and Additional Information Available on Website

This press release and the accompanying unaudited Selected Financial Information are available through the "Investor Relations" section of First Midwest's website at www.firstmidwest.com/investorrelations.

9

Forward-Looking Statements

This press release may contain certain "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. In some cases, forward-looking statements can be identified by the use of words such as "may," "might," "will," "would," "should," "could," "expect," "plan," "intend," "anticipate," "believe," "estimate," "predict," "probable," "potential," "possible," "target," "continue," "look forward," or "assume" and words of similar import. Forward-looking statements are not historical facts but instead express only management's beliefs regarding future results or events, many of which, by their nature, are inherently uncertain and outside of management's control. It is possible that actual results and events may differ, possibly materially, from the anticipated results or events indicated in these forward-looking statements. Forward-looking statements are not guarantees of future performance, and we caution you not to place undue reliance on these statements. Forward-looking statements are made only as of the date of this press release, and we undertake no obligation to update any forward-looking statements contained in this press release to reflect new information or events or conditions after the date hereof.

Forward-looking statements may be deemed to include, among other things, statements relating to our future financial performance, the performance of our loan or securities portfolio, the expected amount of future credit reserves or charge-offs, corporate strategies or objectives, including those relating to our strategic objectives regarding the sale-leaseback transaction, anticipated trends in our business, regulatory developments, acquisition transactions, including estimated synergies, cost savings and financial benefits of pending or consummated transactions, including First Midwest's proposed acquisition of Standard, and growth strategies, including possible future acquisitions. These statements are subject to certain risks, uncertainties and assumptions. For a discussion of these risks, uncertainties and assumptions, you should refer to the sections entitled "Risk Factors" and "Management's Discussion and Analysis of Financial Condition and Results of Operations" in our Annual Report on Form 10-K for the year ended December 31, 2015, as well as our subsequent filings made with the Securities and Exchange Commission. However, these risks and uncertainties are not exhaustive. Other sections of such reports describe additional factors that could adversely impact our business and financial performance.

Non-GAAP Financial Information

The Company's accounting and reporting policies conform to U.S. generally accepted accounting principles ("GAAP") and general practices within the banking industry. As a supplement to GAAP, the Company provides non-GAAP performance results, which the Company believes are useful because they assist investors in assessing the Company's operating performance. These non-GAAP financial measures include earnings per share and the efficiency ratio, excluding certain significant transactions, total non-interest expense, excluding acquisition and integration related expenses, tax-equivalent net interest income (including its individual components), tax-equivalent net interest margin, tangible common equity to tangible assets, tangible common equity, excluding accumulated other comprehensive loss, to tangible assets, tangible common equity to risk-weighted assets, return on average tangible common equity, and return on average tangible common equity, excluding certain significant transactions.

The Company presents earnings per share, excluding certain significant transactions, and the efficiency ratio, both of which exclude acquisition and integration related expenses, the net gain on the sale-leaseback transaction, and property valuation adjustments. In addition, the Company presents noninterest expense, excluding acquisition and integration related expenses. Management believes excluding these transactions from earnings per share, the efficiency ratio, and noninterest expense are useful in assessing the Company's underlying operational performance since these transactions do not pertain to its core business operations and their exclusion facilitates better comparability between periods.

The tax-equivalent adjustment to net interest income and net interest margin recognizes the income tax savings when comparing taxable and tax-exempt assets and assumes a 35% tax rate. Management believes that it is standard practice in the banking industry to present net interest income and net interest margin on a fully tax-equivalent basis and that it enhances comparability for peer comparison purposes.

In management's view, tangible common equity measures are capital adequacy metrics meaningful to the Company, as well as analysts and investors, in assessing the Company's use of equity and in facilitating comparisons with peers. These non-GAAP measures are valuable indicators of a financial institution's capital strength since they eliminate intangible assets from stockholders' equity and retain the effect of accumulated other comprehensive loss in stockholders' equity.

Although intended to enhance investors' understanding of the Company's business and performance, these non-GAAP financial measures should not be considered an alternative to GAAP. See the previously provided tables and the following reconciliations in the "Non-GAAP Reconciliations" section for details on the calculation of these measures to the extent presented herein.

10

Additional Information for Stockholders

The information contained herein does not constitute an offer to sell or a solicitation of an offer to buy any securities or a solicitation of any vote or approval. In connection with the proposed merger of First Midwest and Standard, First Midwest has filed a registration statement on Form S-4 (file no. 333-213532) with the SEC. The registration statement includes a joint proxy statement of First Midwest and Standard, which also constitutes a prospectus of First Midwest, that First Midwest and Standard will send to their respective shareholders once finalized. Investors and shareholders are advised to read the joint proxy statement/prospectus because it contains important information about First Midwest, Standard and the proposed transaction. This document and other documents relating to the merger filed by First Midwest can be obtained free of charge from the SEC's website at www.sec.gov. These documents also can be obtained free of charge by accessing First Midwest's website at www.firstmidwest.com under the tab "Investor Relations" and then under "SEC Filings." Alternatively, these documents can be obtained free of charge from First Midwest upon written request to First Midwest Bancorp, Inc., Attn: Corporate Secretary, One Pierce Place, Suite 1500, Itasca, Illinois 60143 or by calling (630) 875-7463, or from Standard upon written request to Standard Bancshares, Inc., Attn: Lawrence P. Kelley, President and Chief Executive Officer, 7800 West 95th Street, Hickory Hills, Illinois 60457 or by calling (708) 499-2000.

Participants in the Proposed Standard Transaction

First Midwest, Standard and certain of their respective directors and executive officers may be deemed under the rules of the SEC to be participants in the solicitation of proxies from the respective shareholders of First Midwest and Standard in connection with the proposed Standard transaction. Certain information regarding the interests of these participants and a description of their direct and indirect interests, by security holdings or otherwise, is included in the joint proxy statement/prospectus regarding the proposed Standard transaction. Additional information about First Midwest and its directors and officers may be found in the definitive proxy statement of First Midwest relating to its 2016 Annual Meeting of Stockholders filed with the SEC on April 14, 2016 and First Midwest's annual report on Form 10-K for the year ended December 31, 2015 filed with the SEC on February 23, 2016. The definitive proxy statement and annual report can be obtained free of charge from the SEC's website at www.sec.gov.

About the Company

First Midwest is a relationship-based financial institution and one of the largest independent publicly-traded bank holding companies based on assets headquartered in the Midwest. First Midwest's principal subsidiary, First Midwest Bank, and other affiliates provide a full range of commercial, equipment financing, retail, wealth management, trust and private banking products and services through over 110 locations in metropolitan Chicago, northwest Indiana, central and western Illinois, and eastern Iowa. First Midwest's website is www.firstmidwest.com.

Contact Information

Investors: Paul F. Clemens
EVP and Chief Financial Officer
(630) 875-7347
paul.clemens@firstmidwest.com Media: James M. Roolf
SVP and Corporate Relations Officer
(630) 875-7533
jim.roolf@firstmidwest.com

11

Accompanying Unaudited Selected Financial Information

Consolidated Statements of Financial Condition (Unaudited) (Dollar amounts in thousands)
	As of
	September 30,			June 30,			March 31,			December 31,			September 30,
	2016			2016			2016			2015			2015
Period-End Balance Sheet
Assets
Cash and due from banks	$	139,538		$	149,957		$	135,049		$	114,587		$	125,279
Interest-bearing deposits in other banks	362,153			105,432			171,312			266,615			822,264
Trading securities, at fair value	18,351			17,693			17,408			16,894			17,038
Securities available-for-sale, at fair value	1,964,030			1,773,759			1,625,579			1,306,636			1,151,418
Securities held-to-maturity, at amortized cost	20,337			20,672			21,051			23,152			23,723
FHLB and FRB stock	53,506			44,506			40,916			39,306			38,748
Loans:
Commercial and industrial	2,849,399			2,699,742			2,634,391			2,524,726			2,392,860
Agricultural	409,571			401,858			422,231			387,440			393,732
Commercial real estate:
Office, retail, and industrial	1,537,038			1,529,675			1,566,395			1,395,454			1,414,077
Multi-family	625,305			587,104			562,065			528,324			539,308
Construction	401,857			371,016			260,743			216,882			192,086
Other commercial real estate	970,855			1,000,655			1,060,302			931,190			869,748
Home equity	733,260			722,881			683,171			653,468			647,223
1-4 family mortgages	388,145			415,581			390,887			355,854			294,261
Installment	232,030			223,845			213,979			137,602			131,185
Covered loans	24,322			27,180			28,391			30,775			51,219
Total loans	8,171,782			7,979,537			7,822,555			7,161,715			6,925,699
Allowance for loan losses	(85,308		)	(80,105		)	(77,150		)	(73,630		)	(72,500		)
Net loans	8,086,474			7,899,432			7,745,405			7,088,085			6,853,199
OREO	28,049			29,990			29,649			27,782			32,035
Premises, furniture, and equipment, net	82,443			140,554			141,323			122,278			127,443
Investment in BOLI	219,064			218,133			218,873			209,601			208,666
Goodwill and other intangible assets	367,961			369,962			369,979			339,277			331,250
Accrued interest receivable and other assets	236,291			225,720			212,378			178,463			203,983
Total assets	$	11,578,197		$	10,995,810		$	10,728,922		$	9,732,676		$	9,935,046
Liabilities and Stockholders' Equity
Noninterest-bearing deposits	$	2,766,265		$	2,683,495		$	2,627,530		$	2,414,454		$	2,671,793
Interest-bearing deposits	6,339,839			6,287,821			6,153,288			5,683,284			5,624,657
Total deposits	9,106,104			8,971,316			8,780,818			8,097,738			8,296,450
Borrowed funds	639,539			449,744			387,411			165,096			169,943
Senior and subordinated debt	309,444			162,876			201,293			201,208			201,123
Accrued interest payable and other liabilities	253,846			160,985			134,835			122,366			119,861
Stockholders' equity	1,269,264			1,250,889			1,224,565			1,146,268			1,147,669
Total liabilities and stockholders' equity	$	11,578,197		$	10,995,810		$	10,728,922		$	9,732,676		$	9,935,046
Stockholders' equity, excluding accumulated other comprehensive income ("AOCI")	$	1,282,666		$	1,259,692		$	1,239,606		$	1,174,657		$	1,163,487
Stockholders' equity, common	1,269,264			1,250,889			1,224,565			1,146,268			1,147,669

12

Condensed Consolidated Statements of Income (Unaudited) (Dollar amounts in thousands)
	Quarters Ended										Nine Months Ended
	September 30,		June 30,		March 31,		December 31,		September 30,		September 30,		September 30,
	2016		2016		2016		2015		2015		2016		2015
Income Statement
Interest income	$	97,906	$	96,550	$	87,548	$	84,667	$	84,292	$	282,004	$	251,317
Interest expense	6,934		6,569		6,834		6,655		6,390		20,337		17,731
Net interest income	90,972		89,981		80,714		78,012		77,902		261,667		233,586
Provision for loan losses	9,998		8,085		7,593		4,500		4,100		25,676		16,652
Net interest income after provision for loan losses	80,974		81,896		73,121		73,512		73,802		235,991		216,934
Noninterest Income
Service charges on deposit accounts	10,708		10,169		9,473		10,303		10,519		30,350		29,676
Wealth management fees	8,495		8,642		7,559		7,493		7,222		24,696		21,669
Card-based fees	7,332		7,592		6,718		6,761		6,868		21,642		20,223
Merchant servicing fees	3,319		3,170		3,028		2,929		3,207		9,517		8,810
Mortgage banking income	3,394		1,863		1,368		1,777		1,402		6,625		3,964
Other service charges, commissions, and fees	5,218		4,498		5,448		4,664		3,900		15,164		8,990
Total fee-based revenues	38,466		35,934		33,594		33,927		33,118		107,994		93,332
Net gain on sale-leaseback   transaction	5,509		—		—		—		—		5,509		—
Net securities gains	187		23		887		822		524		1,097		1,551
Other income	1,691		1,865		1,445		1,729		1,372		5,001		5,220
Total noninterest income	45,853		37,822		35,926		36,478		35,014		119,601		100,103
Noninterest Expense
Salaries and employee benefits:
Salaries and wages	37,872		37,916		36,296		34,295		33,554		112,084		99,444
Retirement and other employee benefits	8,500		8,351		8,298		8,925		7,807		25,149		22,927
Total salaries and employee benefits	46,372		46,267		44,594		43,220		41,361		137,233		122,371
Net occupancy and equipment expense	10,755		9,928		9,697		9,256		9,406		30,380		29,464
Professional services	6,772		5,292		5,920		6,117		6,172		17,984		16,603
Technology and related costs	3,881		3,669		3,701		3,694		3,673		11,251		10,887
Merchant card expense	2,857		2,724		2,598		2,495		2,722		8,179		7,391
Advertising and promotions	1,941		1,927		1,589		2,211		1,828		5,457		5,395
Cardholder expenses	1,515		1,512		1,359		1,329		1,354		4,386		3,914
Net OREO expense	313		1,122		664		926		1,290		2,099		4,355
Other expenses	7,310		8,295		7,447		7,525		6,559		23,052		20,093
Acquisition and integration related expenses	1,172		618		5,020		1,389		—		6,810		—
Property valuation adjustments	—		—		—		8,581		—		—		—
Total noninterest expense	82,888		81,354		82,589		86,743		74,365		246,831		220,473
Income before income tax expense	43,939		38,364		26,458		23,247		34,451		108,761		96,564
Income tax expense	15,537		13,097		8,496		6,923		11,167		37,130		30,824
Net income	$	28,402	$	25,267	$	17,962	$	16,324	$	23,284	$	71,631	$	65,740
Net income applicable to common shares	$	28,078	$	24,977	$	17,750	$	16,145	$	23,058	$	70,805	$	65,037
Net income applicable to common shares, excluding certain significant transactions (1)	$	25,476	$	25,348	$	20,762	$	22,127	$	23,058	$	71,586	$	65,037

Footnotes to Condensed Consolidated Statements of Income

⁽¹⁾  Certain significant transactions include the net gain on sale-leaseback transaction, acquisition and integration related expenses associated with completed and pending acquisitions, and property valuation adjustments related to strategic branch initiatives.

13

Selected Financial Information (Unaudited) (Amounts in thousands, except per share data)
	As of or for the
	Quarters Ended															Nine Months Ended
	September 30,			June 30,			March 31,			December 31,			September 30,			September 30,			September 30,
	2016			2016			2016			2015			2015			2016			2015
Earnings Per Share
Basic earnings per common share ("EPS") (1)	$	0.35		$	0.31		$	0.23		$	0.21		$	0.30		$	0.89		$	0.84
Diluted EPS (1)	$	0.35		$	0.31		$	0.23		$	0.21		$	0.30		$	0.89		$	0.84
Diluted EPS, excluding certain significant transactions (1) (6)	$	0.32		$	0.32		$	0.27		$	0.29		$	0.30		$	0.90		$	0.84
Common Stock and Related Per Common Share Data
Book value	$	15.61		$	15.38		$	15.06		$	14.70		$	14.72		$	15.61		$	14.72
Tangible book value	$	11.08		$	10.83		$	10.51		$	10.35		$	10.47		$	11.08		$	10.47
Dividends declared per share	$	0.09		$	0.09		$	0.09		$	0.09		$	0.09		$	0.27		$	0.27
Closing price at period end	$	19.36		$	17.56		$	18.02		$	18.43		$	17.54		$	19.36		$	17.54
Closing price to book value	1.2			1.1			1.2			1.3			1.2			1.2			1.2
Period end shares outstanding	81,324			81,312			81,298			77,952			77,942			81,324			77,942
Period end treasury shares	9,957			9,965			9,976			10,276			10,286			9,957			10,286
Common dividends	$	7,408		$	7,240		$	7,228		$	7,017		$	7,014		$	21,876		$	21,047
Key Ratios/Data
Return on average common equity (1) (2)	8.85		%	8.13		%	6.06		%	5.55		%	8.06		%	7.72		%	7.73		%
Return on average tangible common equity (1) (2)	12.85		%	11.94		%	8.87		%	8.06		%	11.68		%	11.27		%	11.28		%
Return on average tangible common equity, excluding certain significant transactions (1) (2) (6)	11.69		%	12.11		%	10.32		%	10.94		%	11.68		%	11.39		%	11.28		%
Return on average assets (2)	1.00		%	0.93		%	0.72		%	0.66		%	0.94		%	0.89		%	0.91		%
Return on average assets, excluding certain significant transactions (1) (2) (6)	0.91		%	0.94		%	0.84		%	0.90		%	0.94		%	0.90		%	0.91		%
Loans to deposits	89.74		%	88.94		%	89.09		%	88.44		%	83.48		%	89.74		%	83.48		%
Efficiency ratio (1)	60.83		%	60.98		%	64.82		%	64.95		%	63.20		%	62.12		%	63.10		%
Net interest margin (3)	3.60		%	3.72		%	3.66		%	3.59		%	3.58		%	3.66		%	3.70		%
Yield on average interest-earning assets (3)	3.87		%	3.99		%	3.96		%	3.89		%	3.86		%	3.94		%	3.98		%
Cost of funds	0.39		%	0.39		%	0.44		%	0.44		%	0.42		%	0.40		%	0.40		%
Net noninterest expense to average assets	1.50		%	1.61		%	1.90		%	2.08		%	1.60		%	1.66		%	1.69		%
Effective income tax rate	35.36		%	34.14		%	32.11		%	29.78		%	32.41		%	34.14		%	31.92		%
Capital Ratios
Total capital to risk-weighted assets (1)	12.25		%	10.68		%	10.64		%	11.15		%	11.43		%	12.25		%	11.43		%
Tier 1 capital to risk-weighted assets (1)	9.89		%	9.83		%	9.81		%	10.28		%	10.55		%	9.89		%	10.55		%
CET1 to risk-weighted assets (1)	9.38		%	9.32		%	9.30		%	9.73		%	10.00		%	9.38		%	10.00		%
Tier 1 capital to average assets (1)	8.90		%	8.94		%	9.56		%	9.40		%	9.29		%	8.90		%	9.29		%
Tangible common equity to tangible assets (1)	8.04		%	8.29		%	8.25		%	8.59		%	8.50		%	8.04		%	8.50		%
Tangible common equity, excluding AOCI, to tangible assets (1)	8.16		%	8.37		%	8.39		%	8.89		%	8.67		%	8.16		%	8.67		%
Tangible common equity to risk-weighted assets (1)	9.13		%	9.14		%	9.04		%	9.29		%	9.70		%	9.13		%	9.70		%
Note: Selected Financial Information footnotes are located at the end of this section.

14

Selected Financial Information (Unaudited) (Amounts in thousands, except per share data)
	As of or for the
	Quarters Ended														Nine Months Ended
	September 30,			June 30,			March 31,		December 31,			September 30,			September 30,		September 30,
	2016			2016			2016		2015			2015			2016		2015
Asset Quality Performance Data
Non-performing assets (4)
Commercial and industrial	$	13,823		$	6,303		$	5,364	$	5,587		$	6,438		$	13,823	$	6,438
Agricultural	184			475			295		355			112			184		112
Commercial real estate:
Office, retail, and industrial	17,670			16,815			10,910		6,875			6,961			17,670		6,961
Multi-family	316			321			410		796			1,046			316		1,046
Construction	287			360			778		905			3,332			287		3,332
Other commercial real estate	3,361			4,797			5,555		5,611			5,898			3,361		5,898
Consumer	8,156			7,788			8,071		8,746			8,521			8,156		8,521
Total non-accrual loans	43,797			36,859			31,383		28,875			32,308			43,797		32,308
90 days or more past due loans, still accruing interest	4,318			5,406			5,483		2,883			4,559			4,318		4,559
Total non-performing loans	48,115			42,265			36,866		31,758			36,867			48,115		36,867
Accruing TDRs	2,368			2,491			2,702		2,743			2,771			2,368		2,771
OREO	27,986			29,452			29,238		27,349			31,129			27,986		31,129
Total non-performing assets	$	78,469		$	74,208		$	68,806	$	61,850		$	70,767		$	78,469	$	70,767
30-89 days past due loans (4)	$	25,849		$	22,770		$	29,826	$	16,329		$	28,629		$	25,849	$	28,629
Allowance for credit losses
Allowance for loan losses	$	84,016		$	78,711		$	75,582	$	71,992		$	68,384		$	84,016	$	68,384
Allowance for covered loan losses	1,292			1,394			1,568		1,638			4,116			1,292		4,116
Reserve for unfunded commitments	1,000			1,400			1,225		1,225			1,225			1,000		1,225
Total allowance for credit losses	$	86,308		$	81,505		$	78,375	$	74,855		$	73,725		$	86,308	$	73,725
Provision for loan losses	$	9,998		$	8,085		$	7,593	$	4,500		$	4,100		$	25,676	$	16,652
Net charge-offs by category
Commercial and industrial	$	1,145		$	1,450		$	1,396	$	1,781		$	1,601		$	3,991	$	11,531
Agricultural	—			—			—		—			—			—		—
Commercial real estate:
Office, retail, and industrial	2,151			1,633			421		267			457			4,205		2,153
Multi-family	(69		)	83			179		(27		)	67			193		557
Construction	(9		)	(12		)	111		105			(114		)	90		(319		)
Other commercial real estate	415			810			1,294		110			92			2,519		540
Consumer	1,162			1,164			672		1,134			959			2,998		1,870
Covered loans	—			2			—		—			1			2		514
Total net charge-offs	$	4,795		$	5,130		$	4,073	$	3,370		$	3,063		$	13,998	$	16,846
Total recoveries included above	$	1,155		$	1,003		$	1,116	$	1,031		$	1,294		$	3,274	$	5,670
Note: Selected Financial Information footnotes are located at the end of this section.

15

Selected Financial Information (Unaudited) (Amounts in thousands, except per share data)
	As of or for the
	Quarters Ended
	September 30,		June 30,		March 31,		December 31,		September 30,
	2016		2016		2016		2015		2015
Asset Quality ratios (4)
Non-accrual loans to total loans	0.54	%	0.46	%	0.40	%	0.40	%	0.47	%
Non-performing loans to total loans	0.59	%	0.53	%	0.47	%	0.45	%	0.54	%
Non-performing assets to total loans plus OREO	0.96	%	0.93	%	0.88	%	0.86	%	1.02	%
Non-performing assets to tangible common equity plus allowance for credit losses	7.96	%	7.72	%	7.39	%	7.03	%	7.99	%
Non-accrual loans to total assets	0.38	%	0.34	%	0.29	%	0.30	%	0.33	%
Allowance for credit losses and net charge-off ratios
Allowance for credit losses to total loans (5)	1.06	%	1.02	%	1.00	%	1.05	%	1.06	%
Allowance for credit losses to loans, excluding acquired loans	1.13	%	1.11	%	1.11	%	1.11	%	1.14	%
Allowance for credit losses to non-accrual loans (4)	194.11	%	217.34	%	244.74	%	253.57	%	215.45	%
Allowance for credit losses to non-performing loans (4)	176.69	%	189.54	%	208.34	%	230.55	%	188.81	%
Net charge-offs to average loans (2)	0.24	%	0.26	%	0.22	%	0.19	%	0.18	%

Footnotes to Selected Financial Information

⁽¹⁾  See the Non-GAAP Reconciliations section for the detailed calculation.

⁽²⁾  Annualized based on the actual number of days for each period presented.

⁽³⁾  Presented on a tax-equivalent basis, which reflects federal and state tax benefits.

⁽⁴⁾  Excludes covered loans and covered OREO.

⁽⁵⁾  This ratio includes acquired loans that are recorded at fair value through an acquisition adjustment, which incorporates credit risk, as of the acquisition date with no allowance for credit losses being established at that time. As the acquisition adjustment is accreted into income over future periods, an allowance for credit losses is established on acquired loans as necessary to reflect credit deterioration.

⁽⁶⁾  Certain significant transactions include the net gain on sale-leaseback transaction, acquisition and integration related expenses associated with completed and pending acquisitions, and property valuation adjustments related to strategic branch initiatives.

16

Non-GAAP Reconciliations (Unaudited) (Amounts in thousands, except per share data)
	Quarters Ended															Nine Months Ended
	September 30,			June 30,			March 31,			December 31,			September 30,			September 30,			September 30,
	2016			2016			2016			2015			2015			2016			2015
Earnings Per Share
Net income	$	28,402		$	25,267		$	17,962		$	16,324		$	23,284		$	71,631		$	65,740
Net income applicable to non-vested restricted shares	(324		)	(290		)	(212		)	(179		)	(226		)	(826		)	(703		)
Net income applicable to common shares	28,078			24,977			17,750			16,145			23,058			70,805			65,037
Net gain on sale-leaseback   transaction	(5,509		)	—			—			—			—			(5,509		)	—
Tax effect of net gain on sale- leaseback transaction	2,204			—			—			—			—			2,204			—
Acquisition and integration related expenses	1,172			618			5,020			1,389			—			6,810			—
Tax effect of acquisition and integration related expenses	(469		)	(247		)	(2,008		)	(556		)	—			(2,724		)	—
Property valuation adjustments	—			—			—			8,581			—			—			—
Tax effect of property valuation adjustments	—			—			—			(3,432		)	—			—			—
Net income applicable to common shares, excluding certain significant transactions (1)	$	25,476		$	25,348		$	20,762		$	22,127		$	23,058		$	71,586		$	65,037
Weighted-average common shares outstanding:
Weighted-average common shares outstanding (basic)	80,396			80,383			77,980			77,121			77,106			79,589			77,038
Dilutive effect of common stock equivalents	13			13			12			13			13			13			13
Weighted-average diluted common shares outstanding	80,409			80,396			77,992			77,134			77,119			79,602			77,051
Basic EPS	$	0.35		$	0.31		$	0.23		$	0.21		$	0.30		$	0.89		$	0.84
Diluted EPS	$	0.35		$	0.31		$	0.23		$	0.21		$	0.30		$	0.89		$	0.84
Diluted EPS, excluding certain significant transactions (1)	$	0.32		$	0.32		$	0.27		$	0.29		$	0.30		$	0.90		$	0.84
Anti-dilutive shares not included in the computation of diluted EPS	454			469			608			735			751			510			822
Efficiency Ratio Calculation
Noninterest expense	$	82,888		$	81,354		$	82,589		$	86,743		$	74,365		$	246,831		$	220,473
Less:
Net OREO expense	(313		)	(1,122		)	(664		)	(926		)	(1,290		)	(2,099		)	(4,355		)
Acquisition and integration related expenses	(1,172		)	(618		)	(5,020		)	(1,389		)	—			(6,810		)	—
Property valuation adjustments	—			—			—			(8,581		)	—			—			—
Total	$	81,403		$	79,614		$	76,905		$	75,847		$	73,075		$	237,922		$	216,118
Tax-equivalent net interest income (2)	$	93,051		$	92,174		$	83,021		$	80,506		$	80,511		$	268,246		$	241,771
Fee-based revenues	38,466			35,934			33,594			33,927			33,118			107,994			93,332
Add:
Other income, excluding BOLI income	762			984			579			807			446			2,325			1,957
BOLI	929			881			866			922			926			2,676			3,263
Tax-equivalent adjustment of BOLI	619			587			577			615			617			1,784			2,175
Total	$	133,827		$	130,560		$	118,637		$	116,777		$	115,618		$	383,025		$	342,498
Efficiency ratio	60.83		%	60.98		%	64.82		%	64.95		%	63.20		%	62.12		%	63.10		%
Note: Non-GAAP Reconciliations footnotes are located at the end of this section.

17

Non-GAAP Reconciliations (Unaudited) (Amounts in thousands, except per share data)
	As of or for the
	Quarters Ended															Nine Months Ended
	September 30,			June 30,			March 31,			December 31,			September 30,			September 30,			September 30,
	2016			2016			2016			2015			2015			2016			2015
Tax-Equivalent Net Interest Income
Net interest income	$	90,972		$	89,981		$	80,714		$	78,012		$	77,902		$	261,667		$	233,586
Tax-equivalent adjustment	2,079			2,193			2,307			2,494			2,609			6,579			8,185
Tax-equivalent net interest income (2)	$	93,051		$	92,174		$	83,021		$	80,506		$	80,511		$	268,246		$	241,771
Risk-Based Capital Data
Common stock	$	913		$	913		$	913		$	882		$	882		$	913		$	882
Additional paid-in capital	496,918			495,159			493,153			446,672			445,037			496,918			445,037
Retained earnings	1,003,271			982,277			964,250			953,516			944,209			1,003,271			944,209
Treasury stock, at cost	(218,436		)	(218,657		)	(218,710		)	(226,413		)	(226,641		)	(218,436		)	(226,641		)
Goodwill and other intangible assets, net of deferred tax liabilities	(357,079		)	(358,582		)	(357,895		)	(327,115		)	(318,854		)	(357,079		)	(318,854		)
Disallowed deferred tax assets	(383		)	(2,263		)	(2,956		)	(1,902		)	(2,889		)	(383		)	(2,889		)
CET1 capital	925,204			898,847			878,755			845,640			841,744			925,204			841,744
Trust-preferred securities	50,690			50,690			50,690			50,690			50,690			50,690			50,690
Other disallowed deferred tax assets	(255		)	(1,508		)	(1,970		)	(2,868		)	(4,334		)	(255		)	(4,334		)
Tier 1 capital	975,639			948,029			927,475			893,462			888,100			975,639			888,100
Tier 2 capital	232,792			81,505			78,375			74,855			73,725			232,792			73,725
Total capital	$	1,208,431		$	1,029,534		$	1,005,850		$	968,317		$	961,825		$	1,208,431		$	961,825
Risk-weighted assets	$	9,867,406		$	9,641,953		$	9,452,551		$	8,687,864		$	8,414,729		$	9,867,406		$	8,414,729
Adjusted average assets	$	10,959,119		$	10,608,085		$	9,700,671		$	9,501,087		$	9,559,796		$	10,959,119		$	9,559,796
Total capital to risk-weighted assets	12.25		%	10.68		%	10.64		%	11.15		%	11.43		%	12.25		%	11.43		%
Tier 1 capital to risk-weighted assets	9.89		%	9.83		%	9.81		%	10.28		%	10.55		%	9.89		%	10.55		%
CET1 to risk-weighted assets	9.38		%	9.32		%	9.30		%	9.73		%	10.00		%	9.38		%	10.00		%
Tier 1 capital to average assets	8.90		%	8.94		%	9.56		%	9.40		%	9.29		%	8.90		%	9.29		%
Tangible Common Equity
Stockholders' equity	$	1,269,264		$	1,250,889		$	1,224,565		$	1,146,268		$	1,147,669		$	1,269,264		$	1,147,669
Less: goodwill and other intangible assets	(367,961		)	(369,962		)	(369,979		)	(339,277		)	(331,250		)	(367,961		)	(331,250		)
Tangible common equity	901,303			880,927			854,586			806,991			816,419			901,303			816,419
Less: AOCI	13,402			8,803			15,041			28,389			15,818			13,402			15,818
Tangible common equity, excluding AOCI	$	914,705		$	889,730		$	869,627		$	835,380		$	832,237		$	914,705		$	832,237
Total assets	$	11,578,197		$	10,995,810		$	10,728,922		$	9,732,676		$	9,935,046		$	11,578,197		$	9,935,046
Less: goodwill and other intangible assets	(367,961		)	(369,962		)	(369,979		)	(339,277		)	(331,250		)	(367,961		)	(331,250		)
Tangible assets	$	11,210,236		$	10,625,848		$	10,358,943		$	9,393,399		$	9,603,796		$	11,210,236		$	9,603,796
Tangible common equity to tangible assets	8.04		%	8.29		%	8.25		%	8.59		%	8.50		%	8.04		%	8.50		%
Tangible common equity, excluding AOCI, to tangible assets	8.16		%	8.37		%	8.39		%	8.89		%	8.67		%	8.16		%	8.67		%
Tangible common equity to risk-weighted assets	9.13		%	9.14		%	9.04		%	9.29		%	9.70		%	9.13		%	9.70		%
Note: Non-GAAP Reconciliations footnotes are located at the end of this section.

18

Non-GAAP Reconciliations (Unaudited) (Amounts in thousands, except per share data)
	As of or for the
	Quarters Ended															Nine Months Ended
	September 30,			June 30,			March 31,			December 31,			September 30,			September 30,			September 30,
	2016			2016			2016			2015			2015			2016			2015
Return on Average Common and Tangible Common Equity
Net income applicable to common shares	$	28,078		$	24,977		$	17,750		$	16,145		$	23,058		$	70,805		$	65,037
Intangibles amortization	1,245			1,245			985			971			973			3,475			2,949
Tax effect of intangibles amortization	(498		)	(498		)	(394		)	(388		)	(389		)	(1,390		)	(1,180		)
Net income applicable to common shares, excluding intangibles amortization	28,825			25,724			18,341			16,728			23,642			72,890			66,806
Net gain on sale-leaseback transaction	(5,509		)	—			—			—			—			(5,509		)	—
Tax effect of net gain on sale- leaseback transaction	2,204			—			—			—			—			2,204			—
Acquisition and integration related expenses	1,172			618			5,020			1,389			—			6,810			—
Tax effect of acquisition and integration related expenses	(469		)	(247		)	(2,008		)	(556		)	—			(2,724		)	—
Property valuation adjustments	—			—			—			8,581			—			—			—
Tax effect of property valuation adjustments	—			—			—			(3,432		)	—			—			—
Net income applicable to common shares, excluding intangibles amortization and certain significant transactions (1)	$	26,223		$	26,095		$	21,353		$	22,710		$	23,642		$	73,671		$	66,806
Average stockholders' equity	$	1,261,702		$	1,235,497		$	1,178,588		$	1,154,506		$	1,134,967		1,225,396			$	1,124,493
Less: average intangible assets	(369,281		)	(369,177		)	(346,549		)	(331,013		)	(331,720		)	(361,697		)	(332,692		)
Average tangible common equity	$	892,421		$	866,320		$	832,039		$	823,493		$	803,247		$	863,699		$	791,801
Return on average common equity (3)	8.85		%	8.13		%	6.06		%	5.55		%	8.06		%	7.72		%	7.73		%
Return on average tangible common equity (3)	12.85		%	11.94		%	8.87		%	8.06		%	11.68		%	11.27		%	11.28		%
Return on average tangible common equity, excluding certain significant transactions (1) (3)	11.69		%	12.11		%	10.32		%	10.94		%	11.68		%	11.39		%	11.28		%
Return on Average Assets
Net income	$	28,402		$	25,267		$	17,962		$	16,324		$	23,284		$	71,631		$	65,740
Net gain on sale-leaseback transaction	(5,509		)	—			—			—			—			(5,509		)	—
Tax effect of net gain on sale- leaseback transaction	2,204			—			—			—			—			2,204			—
Acquisition and integration related expenses	1,172			618			5,020			1,389			—			6,810			—
Tax effect of acquisition and integration related expenses	(469		)	(247		)	(2,008		)	(556		)	—			(2,724		)	—
Property valuation adjustments	—			—			—			8,581			—			—			—
Tax effect of property valuation adjustments	—			—			—			(3,432		)	—			—			—
Net income, excluding certain   significant transactions (1)	$	25,800		$	25,638		$	20,974		$	22,306		$	23,284		$	72,412		$	65,740
Average assets	$	11,322,325		$	10,968,516		$	10,056,845		$	9,822,430		$	9,875,632		$	10,784,532		$	9,661,483
Return on average assets (3)	1.00		%	0.93		%	0.72		%	0.66		%	0.94		%	0.89		%	0.91		%
Return on average assets, excluding certain significant transactions (1) (3)	0.91		%	0.94		%	0.84		%	0.90		%	0.94		%	0.90		%	0.91		%

Footnotes to Non-GAAP Reconciliations

⁽¹⁾  Certain significant transactions include the net gain on sale-leaseback transaction, acquisition and integration related expenses associated with completed and pending acquisitions, and property valuation adjustments related to strategic branch initiatives.

⁽²⁾  Presented on a tax-equivalent basis, which reflects federal and state tax benefits.

⁽³⁾  Annualized based on the actual number of days for each period presented.

19