WAL Western Alliance Bancorporation

Western Alliance Bancorporation (NYSE:WAL) (the "Company") announced today its financial results for the second quarter 2015.

• Net income of $34.7 million and earnings per share of $0.39
• Operating net income of $43.5 million and earnings per share of $0.49, excluding merger charges, debt valuation adjustments, gains on other real estate1, and operating performance of Bridge Capital Holdings ("Bridge")
• Bridge merger, completed on June 30, 2015, increased total assets, gross loans, and deposits by $2.20 billion, $1.45 billion, and $1.74 billion, respectively

Second Quarter 2015 Highlights:

• Pre-tax, pre-provision operating earnings of $59.9 million, up from $54.5 million in the first quarter 2015, and up 26.3% from $47.4 million in the second quarter 20141
• Net operating revenue of $114.4 million, constituting year-over-year growth of 15.1%, or $15.0 million, compared to an increase in operating expenses of 4.9%, or $2.6 million1
• Net interest margin of 4.41%, compared to 4.35% in the first quarter 2015, and 4.39% in the second quarter 2014
• Efficiency ratio of 44.6%, compared to 46.7% in the first quarter 2015, and 49.3% in the second quarter 20141
• Total loans of $10.36 billion, including $1.45 billion acquired from Bridge and loans held for sale of $39 million, with organic loan growth for the quarter of $95 million and $515 million for the first six months of 2015
• Total deposits of $11.41 billion, including $1.74 billion acquired from Bridge, and organic deposit growth flat during the second quarter and $734 million for the first six months of 2015
• Nonperforming assets (nonaccrual loans and repossessed assets) decreased to 0.88% of total assets, from 1.11% at March 31, 2015, and from 1.23% at June 30, 2014
• Net loan recoveries (annualized) to average loans outstanding of 0.13%, compared to 0.06% in the first quarter 2015, and 0.09% in the second quarter 2014
• Qualifying debt of $208 million, an increase of $168 million from March 31, 2015 due to the issuance of $150 million in subordinated debt and $11 million in junior subordinated debt assumed in the Bridge merger
• Common Equity Tier 1 ratio of 9.1% and Total Capital ratio of 12.2%, compared to 9.0% and 11.3%, respectively, at March 31, 2015 under Basel III federal regulatory standards, which became effective on January 1, 2015
• Stockholders' equity of $1.51 billion, an increase of $463 million from March 31, 2015, including $431 million related to the Bridge acquisition, and an increase of $557 million from June 30, 2014
• Tangible book value per share, net of tax, of $11.25, an increase of 4.9% from $10.72 at March 31, 2015, and an increase of 24.7% from $9.02 at June 30, 20141

Financial Performance

“Once again, Western Alliance delivered strong performance with key metrics driving record operating earnings and efficiency in the second quarter,” commented Robert Sarver, Chief Executive Officer and Chairman of Western Alliance Bancorporation. “Our earnings power, as measured by pre-tax, pre-provision income was up $12.5 million, or 26.3%, from a year ago. Our operating efficiency, at under 45%, is among the best in the industry. We also experienced our sixth consecutive quarter of net loan recoveries.”

Sarver continued, “We are very pleased to welcome our new colleagues from Bridge Bank. Bridge provides Western Alliance with a strong Northern California presence and impressive lending capabilities, particularly in the technology space, as well as new fee revenue and low-cost deposit generation opportunities. Combining these new opportunities with our existing performance momentum, we are confident that our combined company will continue to deliver superior results for our shareholders.”

Acquisition of Bridge Capital Holdings

Results include the acquisition of Bridge on June 30, 2015, which increased total assets, gross loans, and deposits by $2.20 billion, $1.45 billion, and $1.74 billion, respectively. However, the acquisition had no effect on the Company's results of operations, except for merger charges incurred related to the acquisition. Pursuant to accounting guidance, acquired net assets are recorded at estimated fair value as of the acquisition date. The estimated fair value of certain net assets are preliminary and are subject to measurement period adjustments. The results of operations from Bridge will be included in the Company's results beginning on July 1, 2015.

Income Statement

Net interest income was $108.7 million in the second quarter 2015, an increase of $5.6 million from $103.1 million in the first quarter 2015, and an increase of $14.8 million, or 15.8%, compared to the second quarter 2014. The Company’s net interest margin increased in the second quarter 2015 to 4.41%, compared to 4.35% in the first quarter 2015, and 4.39% in the second quarter 2014.

Operating non-interest income was $5.7 million for both the second and first quarters of 2015, compared to $5.5 million for the second quarter 2014.1

Net operating revenue was $114.4 million for the second quarter 2015, compared to $108.8 million for the first quarter 2015, and an increase of $15.0 million compared to $99.4 million for the second quarter 2014.1

Operating non-interest expense was $54.6 million for the second quarter 2015, compared to $54.2 million for the first quarter 2015, and $52.0 million for the second quarter 2014.1 The Company’s operating efficiency ratio1 on a tax equivalent basis was 44.6% for the second quarter 2015, an improvement from 46.7% for the first quarter 2015, and from 49.3% for the second quarter 2014.

The Company views its pre-tax, pre-provision operating earnings as a key metric for assessing the Company’s earnings power, which it defines as net operating revenue less operating non-interest expense. For the second quarter 2015, the Company’s pre-tax, pre-provision operating earnings were $59.9 million, up from $54.5 million in the first quarter 2015, and up 26.3% from $47.4 million in the second quarter 2014.1

On June 29, 2015, Western Alliance Bank ("WAB"), the operating subsidiary of the Company, issued $150.0 million of subordinated debt at a fixed rate of 5.00% until July 15, 2020. After July 15, 2020 and through maturity or early redemption of the subordinated notes, the notes will bear interest at a floating rate of 3.20% above 90 day LIBOR. The subordinated debt is due July 15, 2025 and was recorded net of related issuance costs of $1.6 million. Given the pricing of 90 day LIBOR plus 3.20%, the Company reviewed the methodology for calculating the estimated fair value of its outstanding junior subordinated debt, which was priced at 30 day LIBOR plus 5.96% as of March 31, 2015 under fair value option accounting. Considering the significantly lower spread of WAB’s newly issued subordinated debt, that the Company’s debt is junior in subordination, and that the debt was issued by the parent company rather than the insured depository, the Company adjusted the spread for valuation purposes to 30 day LIBOR plus 4.69%, which is between the 90 day LIBOR plus 3.20% rate achieved on the WAB subordinated debt and 30 day LIBOR plus 5.96% rate that was previously used. This spread reduction resulted in a non-cash, non-recurring debt valuation loss of $7.7 million. This charge had no effect on regulatory capital.

The other significant non-operating items for the second quarter 2015 consisted of merger / restructure expense of $7.8 million incurred in connection with the acquisition of Bridge and a net gain on sales and valuations of repossessed and other assets of $1.2 million.

The Company had 1,411 full-time equivalent employees and 48 offices at June 30, 2015, compared to 1,112 employees and 39 offices at June 30, 2014.

Balance Sheet

Gross loans totaled $10.36 billion at June 30, 2015, including $1.45 billion acquired from Bridge and loans held for sale of $39 million, and organic loan growth of $515 million from December 31, 2014. At June 30, 2015, the allowance for credit losses was 1.11% of total loans, compared to 1.27% at March 31, 2015, and 1.40% at June 30, 2014, reflecting an improvement in the Company’s asset quality profile and historical losses. Consistent with GAAP, the allowance for credit losses on acquired loans is not carried over in an acquisition as acquired loans are recorded at fair value, which discounts the loans based on expected future cash flows. The allowance for credit losses as a percent of total loans, adjusted to include credit discounts on acquired loans, was 1.35% at June 30, 2015, compared to 1.45% at December 31, 2014.1

The acquisition of Bridge added $260 million of goodwill and $15 million of core deposit intangible assets, which are preliminary amounts that are subject to measurement period adjustments over the next year. Goodwill was allocated to the Northern California and Central Business Lines segments based on the balances of loans and deposits as of June 30, 2015 and core deposit intangible assets were allocated to these segments based on core deposit balances. Total goodwill and core deposit intangible assets allocated to the Northern California and Central Business Lines segments were $155 million and $119 million, respectively, as of June 30, 2015.

Deposits totaled $11.41 billion at June 30, 2015, including $1.74 billion acquired from Bridge, and organic deposit growth of $734 million from December 31, 2014. Non-interest bearing deposits were $3.92 billion at June 30, 2015, compared to $2.66 billion at March 31, 2015, and $2.28 billion at June 30, 2014. Non-interest bearing deposits comprised 34.4% of total deposits at June 30, 2015, compared to 27.5% at March 31, 2015, and 26.9% at June 30, 2014. The increase in the proportion of the Company's non-interest bearing deposits was due to the Bridge acquisition as 68.3% of Bridge's deposits were non-interest bearing. The proportion of savings and money market accounts decreased to 41.5% from 42.6% at March 31, 2015, and from 42.9% at June 30, 2014. Certificates of deposit as a percentage of total deposits were 15.3% at June 30, 2015, compared to 20.2% at March 31, 2015, and 20.8% at June 30, 2014. The Company’s ratio of loans to deposits was 90.8% at June 30, 2015, compared to 91.3% at March 31, 2015, and 89.1% at June 30, 2014.

Borrowings totaled $70 million at June 30, 2015, a decrease of $206 million from $275 million at March 31, 2015, and a decrease of $268 million from $338 million at June 30, 2014. The decrease from the prior quarter is due to the payoff of FHLB advances, resulting in a loss on extinguishment of debt of $0.1 million. Qualifying debt increased to $208 million at June 30, 2015, from $41 million at March 31, 2015, primarily due to the issuance of $150 million of subordinated debt and $11 million in junior subordinated debt assumed from Bridge.

Stockholders’ equity at June 30, 2015 was $1.51 billion, compared to $1.05 billion at March 31, 2015, and $958 million at June 30, 2014. The merger with Bridge increased stockholders' equity by $431 million, primarily due to the issuance of 12.5 million shares of the Company's common stock.

At June 30, 2015, tangible common equity, net of tax, was 8.7% of tangible assets1 and total capital under Basel III federal regulatory standards was 12.2% of risk-weighted assets. The Company’s tangible book value per share1 was $11.25 at June 30, 2015, up 24.7% from June 30, 2014.

Total assets increased 19.7% to $13.47 billion at June 30, 2015, from $11.25 billion at March 31, 2015, and increased 34.4% from $10.02 billion at June 30, 2014. The increase in total assets was primarily related to the merger with Bridge, which increased total assets by $2.20 billion.

Asset Quality

There was no provision for credit losses for the second quarter 2015, compared to $0.7 million in the first quarter 2015, and $0.5 million for the second quarter 2014. Net loan recoveries in the second quarter 2015 were $3.0 million, or 0.13% of average loans (annualized), compared to $1.2 million, or 0.06%, in the first quarter 2015, respectively, and $1.5 million, or 0.09%, for the second quarter 2014, respectively.

Nonaccrual loans decreased $1.3 million to $59.4 million during the quarter, including Bridge. Loans past due 90 days and still accruing interest totaled $8.3 million at June 30, 2015, compared to $3.7 million at March 31, 2015, and $3.0 million at June 30, 2014. Loans past due 30-89 days and still accruing interest totaled $4.0 million at quarter end, a decrease from $14.1 million at March 31, 2015, and a decrease from $5.1 million at June 30, 2014.

As the Company’s asset quality improved and its capital increased, the ratio of classified assets to Tier I capital plus the allowance for credit losses, a common regulatory measure of asset quality, improved to 18.5% at June 30, 2015, from 20.3% at March 31, 2015, and from 24.5% at June 30, 2014.1

Segment Highlights

The Company's reportable segments are aggregated primarily based on geographic location, services offered, and markets served. As a result of the acquisition of Bridge on June 30, 2015, former Bridge activities were allocated between the newly formed Northern California segment and the Central Business Lines ("CBL") segment. As a substantial portion of Bridge's balance sheet is generated from nationally-focused business lines, the Technology and Energy Infrastructure lines of Bridge's business are included in the CBL segment. Substantially all of the remaining assets and liabilities are included in the Northern California segment. The Southern California segment represents legacy Western Alliance operations in California, excluding two branches located in northern California, which are now included in the Northern California segment.

The Arizona, Nevada, Southern California, and Northern California segments provide full service banking and related services to their respective markets. The Company's CBL segment provides specialized banking services to niche markets and, as of June 30, 2015, includes the Technology and Energy Infrastructure operations of Bridge. These CBLs are managed centrally and are broader in geographic scope compared to our other segments, though still predominately located within our core market areas. The Corporate & Other segment consists of corporate-related items, income and expense items not allocated to our other reportable segments, and inter-segment eliminations.

Key management metrics for evaluating the performance of the Company's Arizona, Nevada, Southern California, Northern California, and CBL segments include loan and deposit growth, asset quality, and pre-tax income.

Arizona reported a gross loan balance of $2.43 billion at June 30, 2015, an increase of $91 million during the last six months, and an increase of $302 million during the last 12 months. Deposits were $2.37 billion at June 30, 2015, an increase of $192 million during the last six months, and an increase of $255 million during the last 12 months. Pre-tax income was $17.8 million and $17.3 million for the three months ended June 30, 2015 and 2014, respectively, and $33.6 million and $29.9 million for the six months ended June 30, 2015 and 2014, respectively.

Nevada reported a gross loan balance of $1.76 billion at June 30, 2015, an increase of $93 million during the last six months, and an increase of $79 million during the last 12 months. Deposits were $3.32 billion at June 30, 2015, an increase of $86 million during the last six months, and an increase of $129 million during the last 12 months. Pre-tax income was $20.5 million and $17.7 million for the three months ended June 30, 2015 and 2014, respectively, and $37.2 million and $34.2 million for the six months ended June 30, 2015 and 2014, respectively.

Southern California reported a gross loan balance of $1.66 billion at June 30, 2015, an increase of $107 million during the last six months, and an increase of $145 million during the last 12 months. Deposits were $1.95 billion at June 30, 2015, an increase of $202 million during the last six months, and an increase of $281 million during the last 12 months. Pre-tax income was $12.5 million and $12.6 million for the three months ended June 30, 2015 and 2014, respectively, and $24.4 million and $21.9 million for the six months ended June 30, 2015 and 2014, respectively.

Northern California reported a gross loan balance of $1.08 billion at June 30, 2015, an increase of $879 million during the last six months, and an increase of $898 million during the last 12 months. Deposits were $1.55 billion at June 30, 2015, an increase of $966 million during the last six months, and an increase of $1.16 billion during the last 12 months. Results of operations for Northern California includes the Company's two previously existing northern California branch operations and does not include the results of operations of Bridge. Pre-tax income was $2.8 million and $1.4 million for the three months ended June 30, 2015 and 2014, respectively, and $5.3 million and $2.5 million for the six months ended June 30, 2015 and 2014, respectively.

CBL, which includes the Technology and Energy Infrastructure operations of Bridge, reported a gross loan balance of $3.39 billion at June 30, 2015, an increase of $798 million during the last six months, and an increase of $1.44 billion during the last 12 months. Deposits were $1.95 billion at June 30, 2015, an increase of $999 million during the last six months, and an increase of $1.06 billion during the last 12 months. Pre-tax income was $14.0 million and $6.8 million for the three months ended June 30, 2015 and 2014, respectively, and $27.3 million and $12.1 million for the six months ended June 30, 2015 and 2014, respectively.

Attached to this press release is summarized financial information for the quarter ended June 30, 2015.

Conference Call and Webcast

Western Alliance Bancorporation will host a conference call and live webcast to discuss its second quarter 2015 financial results at 12:00 p.m. ET on Monday, July 27, 2015. Participants may access the call by dialing 1-888-317-6003 and using passcode 7737999 or via live audio webcast using the website link http://services.choruscall.com/links/wal150724.html. The webcast is also available via the Company’s website at www.westernalliancebancorp.com. Participants should log in at least 15 minutes early to receive instructions. The call will be recorded and made available for replay after 2:00 p.m. ET July 27th through 9:00 a.m. ET August 27th by dialing 1-877-344-7529 passcode: 10068074.

Reclassifications

Certain amounts in the Consolidated Income Statements for the prior periods have been reclassified to conform to the current presentation. The reclassifications have no effect on net income or stockholders’ equity as previously reported.

Use of Non-GAAP Financial Information

This press release contains both financial measures based on accounting principles generally accepted in the United States (“GAAP”) and non-GAAP based financial measures, which are used where management believes it to be helpful in understanding the Company’s results of operations or financial position. Where non-GAAP financial measures are used, the comparable GAAP financial measure, as well as the reconciliation to the comparable GAAP financial measure, can be found in this press release. These disclosures should not be viewed as a substitute for operating results determined in accordance with GAAP, nor are they necessarily comparable to non-GAAP performance measures that may be presented by other companies.

Cautionary Note Regarding Forward-Looking Statements

This release contains forward-looking statements that relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concerning matters that are not historical facts. Examples of forward-looking statements include, among others, statements we make regarding our acquisition of Bridge Capital Holdings, the performance of the combined company, and any guidance, outlook or expectations relating to our business, financial and operating results, and future economic performance. The forward-looking statements contained herein reflect our current views about future events and financial performance and are subject to risks, uncertainties, assumptions and changes in circumstances that may cause our actual results to differ significantly from historical results and those expressed in any forward-looking statement. Some factors that could cause actual results to differ materially from historical or expected results include, among others: the risk factors discussed in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014 as filed with the Securities and Exchange Commission; changes in general economic conditions, either nationally or locally in the areas in which we conduct or will conduct our business; inflation, interest rate, market and monetary fluctuations; increases in competitive pressures among financial institutions and businesses offering similar products and services; higher defaults on our loan portfolio than we expect; changes in management’s estimate of the adequacy of the allowance for credit losses; legislative or regulatory changes or changes in accounting principles, policies or guidelines; supervisory actions by regulatory agencies which may limit our ability to pursue certain growth opportunities, including expansion through acquisitions; management’s estimates and projections of interest rates and interest rate policy; the execution of our business plan; and other factors affecting the financial services industry generally or the banking industry in particular.

Any forward-looking statement made by us in this release is based only on information currently available to us and speaks only as of the date on which it is made. We do not intend and disclaim any duty or obligation to update or revise any industry information or forward-looking statements, whether written or oral, that may be made from time to time, set forth in this press release to reflect new information, future events or otherwise.

About Western Alliance Bancorporation

With more than $10 billion in assets, top-performing Western Alliance Bancorporation (NYSE:WAL) is one of the fastest growing bank holding companies in the U.S. Its primary subsidiary, Western Alliance Bank, is the go-to bank for business and succeeds with local teams of experienced bankers who deliver superior, personalized services and a full spectrum of deposit, lending, treasury management and online banking products and services. Western Alliance Bank operates five full-service banking divisions: Alliance Bank of Arizona, Bank of Nevada, Bridge Bank, First Independent Bank and Torrey Pines Bank. The Company also serves business customers through a robust national platform of specialized financial services including Corporate Finance, Equipment Finance, Public Finance, Resort Finance, Technology Finance, Energy Infrastructure Group, Mortgage Warehouse Lending and Alliance Association Bank. For more information visit westernalliancebancorp.com.

1 See Reconciliation of Non-GAAP Financial Measures beginning on page 18.

  Western Alliance Bancorporation and Subsidiaries Summary Consolidated Financial Data Unaudited                             Selected Balance Sheet Data: June 30, June 30, 2015 2014

Change %

(in millions)

Total assets $ 13,470.1 $ 10,023.6 34.4 % Total loans, net of deferred fees 10,360.7 7,544.5 37.3 Securities and money market investments 1,531.9 1,606.7 (4.7 ) Total deposits 11,406.7 8,469.5 34.7 Borrowings 69.5 337.5 (79.4 ) Qualifying debt 208.4 42.7 388.1 Stockholders' equity 1,514.7 957.7 58.2 Tangible common equity, net of tax (1) 1,150.8 791.3 45.4   Selected Income Statement Data: For the Three Months Ended June 30, For the Six Months Ended June 30, 2015 2014

Change %

2015 2014

Change %

(in thousands) (in thousands) Interest income $ 116,618 $ 101,973 14.4 % $ 227,580 $ 200,674 13.4 % Interest expense 7,900   8,075   (2.2 ) 15,754   15,999   (1.5 ) Net interest income 108,718 93,898 15.8 211,826 184,675 14.7 Provision for credit losses —   507   (100.0 ) 700   4,007   (82.5 ) Net interest income after provision for credit losses 108,718 93,391 16.4 211,126 180,668 16.9 Non-interest income (2,191 ) 5,598 (139.1 ) 3,742 10,171 (63.2 ) Non-interest expense 61,209   52,241   17.2 115,242   101,728   13.3 Income from continuing operations before income taxes 45,318 46,748 (3.1 ) 99,626 89,111 11.8 Income tax expense 10,599   10,706   (1.0 ) 24,717   21,330   15.9 Income from continuing operations 34,719 36,042 (3.7 ) 74,909 67,781 10.5 Loss on discontinued operations, net of tax —   (504 ) (100.0 ) —   (1,158 ) (100.0 ) Net income $ 34,719   $ 35,538   (2.3 ) $ 74,909   $ 66,623   12.4 Diluted earnings per share from continuing operations $ 0.39   $ 0.41   (4.9 ) $ 0.84   $ 0.77   9.1 Diluted loss per share from discontinued operations —   (0.01 ) —   (0.01 ) Diluted earnings per share available to common stockholders $ 0.39   $ 0.40   (2.5 ) $ 0.84   $ 0.76   10.5   Common Share Data: At or for the Three Months Ended June 30, At or for the Six Months Ended June 30, 2015 2014

Change %

2015 2014

Change %

Diluted earnings per share available to common stockholders $ 0.39 $ 0.40 (2.5 )% $ 0.84 $ 0.76 10.5 % Book value per common share 14.12 9.30 51.8 Tangible book value per share, net of tax (1) 11.25 9.02 24.7 Average shares outstanding (in thousands): Basic 88,177 86,501 1.9 88,059 86,379 1.9 % Diluted 88,682 87,333 1.5 88,567 87,229 1.5 Common shares outstanding 102,291 87,774 16.5   (1) See Reconciliation of Non-GAAP Financial Measures.                       Western Alliance Bancorporation and Subsidiaries Summary Consolidated Financial Data Unaudited         At or for the Three Months Ended June 30, At or for the Six Months Ended June 30, 2015 2014 Change % 2015 2014 Change % Selected Performance Ratios: Return on average assets (1) 1.24 % 1.46 % (15.1 )% 1.37 % 1.39 % (1.4 )% Return on average tangible common equity (2) 14.10 18.62 (24.3 ) 15.61 17.98 (13.2 ) Net interest margin (1) 4.41 4.39 0.5 4.38 4.40 (0.5 ) Net interest spread 4.28 4.26 0.5 4.25 4.27 (0.5 ) Efficiency ratio - tax equivalent basis (2) 44.63 49.34 (9.5 ) 45.63 50.10 (8.9 ) Loan to deposit ratio 90.83 89.08 2.0   Asset Quality Ratios: Net (recoveries) charge-offs to average loans outstanding (1) (0.13 )% (0.09 )% 44.4 % (0.10 )% (0.05 )% 100.0 % Nonaccrual loans to gross loans 0.58 0.85 (31.8 ) Nonaccrual loans and repossessed assets to total assets 0.88 1.23 (28.5 ) Loans past due 90 days and still accruing to total loans 0.08 0.04 100.0 Allowance for credit losses to gross loans 1.11 1.40 (20.7 ) Allowance for credit losses to nonaccrual loans 193.62 164.64 17.6   Capital Ratios (2):               Basel III Basel I June 30, 2015 March 31, 2015 June 30, 2014 Tangible common equity 8.7 % 8.5 % 7.9 % Common Equity Tier 1 (3) 9.1 9.0 9.0 Tier 1 Leverage ratio (3) 10.0 9.8 10.0 Tier 1 Capital (3) 10.2 10.2 11.2 Total Capital (3) 12.2 11.3 12.5   (1)     Annualized for the three and six month periods ended June 30, 2015 and 2014. (2) See Reconciliation of Non-GAAP Financial Measures. (3) Basel III capital ratios are preliminary until the Call Report is filed.                     Western Alliance Bancorporation and Subsidiaries Condensed Consolidated Income Statements Unaudited     Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014

(dollars in thousands)

Interest income: Loans $ 105,468 $ 90,583 $ 205,859 $ 177,387 Investment securities 9,276 10,894 19,064 22,219 Other 1,874   496   2,657   1,068   Total interest income 116,618   101,973   227,580   200,674   Interest expense: Deposits 5,362 4,930 10,508 9,595 Borrowings 2,087 2,702 4,354 5,540 Junior subordinated debt 451   443   892   864   Total interest expense 7,900   8,075   15,754   15,999   Net interest income 108,718 93,898 211,826 184,675 Provision for credit losses —   507   700   4,007   Net interest income after provision for credit losses 108,718   93,391   211,126   180,668   Non-interest income: Service charges 3,128 2,758 6,017 5,319 Bank owned life insurance 772 959 1,749 1,908 Gains (losses) on sales of investment securities, net 55 (163 ) 644 203 Unrealized (losses) gains on assets and liabilities measured at fair value, net (7,885 ) 235 (8,194 ) (1,041 ) Loss on extinguishment of debt (81 ) — (81 ) — Other 1,820   1,809   3,607   3,782   Total non-interest income (2,191 ) 5,598   3,742   10,171   Non-interest expenses: Salaries and employee benefits 32,406 31,751 64,947 61,306 Occupancy 4,949 4,293 9,762 8,979 Legal, professional and directors' fees 4,611 4,192 8,606 7,831 Data Processing 2,683 2,580 5,809 5,309 Insurance 2,274 2,087 4,364 4,480 Loan and repossessed asset expenses 1,284 889 2,374 2,036 Card expense 613 530 1,087 1,130 Marketing 463 506 840 1,065 Intangible amortization 281 302 562 899 Net (gain) loss on sales and valuations of repossessed and other assets (1,218 ) 184 (1,569 ) (2,363 ) Merger / restructure expense 7,842 26 8,001 183 Other 5,021   4,901   10,459   10,873   Total non-interest expense 61,209   52,241   115,242   101,728   Income from continuing operations before income taxes 45,318 46,748 99,626 89,111 Income tax expense 10,599   10,706   24,717   21,330   Income from continuing operations $ 34,719 $ 36,042 $ 74,909 $ 67,781 Loss from discontinued operations, net of tax —   (504 ) —   (1,158 ) Net income $ 34,719   $ 35,538   $ 74,909   $ 66,623   Preferred stock dividends 247   352   423   705   Net income available to common stockholders $ 34,472   $ 35,186   $ 74,486   $ 65,918   Diluted net income per share $ 0.39   $ 0.40   $ 0.84   $ 0.76                           Western Alliance Bancorporation and Subsidiaries Five Quarter Condensed Consolidated Income Statements Unaudited     Three Months Ended

Jun 30, 2015

Mar 31, 2015 Dec 31, 2014 Sep 30, 2014 Jun 30, 2014

(in thousands, except per share data)

Interest income: Loans $ 105,468 $ 100,391 $ 99,099 $ 94,436 $ 90,583 Investment securities 9,276 9,788 10,455 10,535 10,894 Other 1,874   783   597   583   496   Total interest income 116,618   110,962   110,151   105,554   101,973   Interest expense: Deposits 5,362 5,146 5,245 5,172 4,930 Borrowings 2,087 2,267 2,314 1,866 2,702 Junior subordinated debt 451   441   447   443   443   Total interest expense 7,900   7,854   8,006   7,481   8,075   Net interest income 108,718 103,108 102,145 98,073 93,898 Provision for credit losses —   700   300   419   507   Net interest income after provision for credit losses 108,718   102,408   101,845   97,654   93,391   Non-interest income: Service charges 3,128 2,889 2,791 2,457 2,758 Bank owned life insurance 772 977 1,464 1,136 959 Gains (losses) on sales of investment securities, net 55 589 373 181 (163 ) Unrealized (losses) gains on assets and liabilities measured at fair value, net (7,885 ) (309 ) 1,357 896 235 Loss on extinguishment of debt (81 ) — — (502 ) — Other 1,820   1,787   2,432   1,824   1,809   Total non-interest income (2,191 ) 5,933   8,417   5,992   5,598   Non-interest expenses: Salaries and employee benefits 32,406 32,541 33,094 32,230 31,751 Occupancy 4,949 4,813 4,698 4,479 4,293 Legal, professional, and directors' fees 4,611 3,995 3,425 3,022 4,192 Data Processing 2,683 3,126 2,345 2,404 2,580 Insurance 2,274 2,090 2,386 1,996 2,087 Loan and repossessed asset expenses 1,284 1,090 1,486 901 889 Card expense 613 474 678 609 530 Marketing 463 377 857 378 506 Intangible amortization 281 281 281 281 302 Net (gain) loss on sales and valuations of repossessed and other assets (1,218 ) (351 ) (1,102 ) (1,956 ) 184 Merger / restructure expense 7,842 159 — 15 26 Other 5,021   5,438   7,594   5,419   4,901   Total non-interest expense 61,209   54,033   55,742   49,778   52,241   Income from continuing operations before income taxes 45,318 54,308 54,520 53,868 46,748 Income tax expense 10,599   14,118   14,111   12,949   10,706   Income from continuing operations $ 34,719 $ 40,190 $ 40,409 $ 40,919 $ 36,042 Loss from discontinued operations, net of tax —   —   —   —   (504 ) Net income $ 34,719   $ 40,190   $ 40,409   $ 40,919   $ 35,538   Preferred stock dividends 247   176   329   353   352   Net Income available to common stockholders $ 34,472   $ 40,014   $ 40,080   $ 40,566   $ 35,186   Diluted net income per share $ 0.39   $ 0.45   $ 0.46   $ 0.46   $ 0.40                           Western Alliance Bancorporation and Subsidiaries Five Quarter Condensed Consolidated Balance Sheets Unaudited     Jun 30, 2015 Mar 31, 2015 Dec 31, 2014 Sep 30, 2014 Jun 30, 2014 (in millions) Assets: Cash and due from banks $ 700.2 $ 492.4 $ 164.4 $ 258.8 $ 379.3 Securities purchased under agreement to resell 58.1   —   —   —   —   Cash and cash equivalents 758.3 492.4 164.4 258.8 379.3 Securities and money market investments 1,531.9 1,453.7 1,547.8 1,597.3 1,606.7 Loans held for sale 39.4 — — — — Loans held for investment: Commercial 4,759.7 3,725.2 3,532.3 3,293.2 3,028.0 Commercial real estate - non-owner occupied 2,195.0 2,113.8 2,052.6 1,993.3 1,934.0 Commercial real estate - owner occupied 2,019.3 1,818.0 1,732.9 1,620.3 1,603.4 Construction and land development 1,002.7 842.9 748.1 671.8 609.1 Residential real estate 320.6 292.2 299.4 317.5 328.6 Consumer 24.0   26.5   33.0   33.4   41.4   Gross loans and deferred fees, net 10,321.3 8,818.6 8,398.3 7,929.5 7,544.5 Allowance for credit losses (115.1 ) (112.1 ) (110.2 ) (109.2 ) (105.9 ) Loans, net 10,206.2   8,706.5   8,288.1   7,820.3   7,438.6   Premises and equipment, net 116.0 114.3 113.8 112.1 109.6 Other assets acquired through foreclosure, net 59.3 63.8 57.1 51.8 59.3 Bank owned life insurance 161.1 142.9 142.0 143.2 142.5 Goodwill and other intangibles, net 300.0 25.6 25.9 26.2 26.5 Other assets 297.9   252.7   261.4   279.1   261.1   Total assets $ 13,470.1   $ 11,251.9   $ 10,600.5   $ 10,288.8   $ 10,023.6   Liabilities and Stockholders' Equity: Liabilities: Deposits Non-interest bearing demand deposits $ 3,924.4 $ 2,657.4 $ 2,288.0 $ 2,246.7 $ 2,278.8 Interest bearing: Demand 1,001.3 936.5 854.9 809.4 794.8 Savings and money market 4,733.9 4,121.0 3,869.7 3,685.0 3,637.4 Time certificates 1,747.1   1,947.4   1,918.4   1,956.5   1,758.5   Total deposits 11,406.7 9,662.3 8,931.0 8,697.6 8,469.5 Customer repurchase agreements 42.2   47.2   54.9   53.0   53.7   Total customer funds 11,448.9 9,709.5 8,985.9 8,750.6 8,523.2 Securities sold short 57.6 — — — — Borrowings 69.5 275.2 390.3 330.8 337.5 Qualifying debt 208.4 40.7 40.4 41.8 42.7 Accrued interest payable and other liabilities 171.0   175.2   183.0   162.5   162.5   Total liabilities 11,955.4   10,200.6   9,599.6   9,285.7   9,065.9   Stockholders' Equity: Preferred stock 70.5 70.5 70.5 141.0 141.0 Common stock and additional paid-in capital 1,269.0 831.9 828.3 807.2 803.4 Retained earnings 159.9 125.5 85.5 45.4 4.8 Accumulated other comprehensive income 15.3   23.4   16.6   9.5   8.5   Total stockholders' equity 1,514.7   1,051.3   1,000.9   1,003.1   957.7   Total liabilities and stockholders' equity $ 13,470.1   $ 11,251.9   $ 10,600.5   $ 10,288.8   $ 10,023.6                           Western Alliance Bancorporation and Subsidiaries Changes in the Allowance For Credit Losses Unaudited     Three Months Ended Jun 30, 2015 Mar 31, 2015 Dec 31, 2014 Sep 30, 2014 Jun 30, 2014 (in thousands) Balance, beginning of period $ 112,098 $ 110,216 $ 109,161 $ 105,937 $ 103,899 Provision for credit losses — 700 300 419 507 Recoveries of loans previously charged-off: Commercial and industrial 681 916 1,499 1,053 1,254 Commercial real estate - non-owner occupied 335 277 229 1,226 1,052 Commercial real estate - owner occupied 1,403 106 43 553 196 Construction and land development 1,373 157 1,268 182 498 Residential real estate 1,184 533 261 768 314 Consumer 24   40   64   34   191   Total recoveries 5,000 2,029 3,364 3,816 3,505 Loans charged-off: Commercial and industrial 1,771 393 1,743 110 1,039 Commercial real estate - non-owner occupied — — — 158 99 Commercial real estate - owner occupied — — 270 35 230 Construction and land development — — 8 — 78 Residential real estate 218 400 377 423 523 Consumer 53   54   211   285   5   Total loans charged-off 2,042 847 2,609 1,011 1,974 Net loan recoveries (2,958 ) (1,182 ) (755 ) (2,805 ) (1,531 ) Balance, end of period $ 115,056   $ 112,098   $ 110,216   $ 109,161   $ 105,937     Net recoveries to average loans outstanding - annualized (0.13 )% (0.06 )% (0.04 )% (0.15 )% (0.09 )% Allowance for credit losses to gross loans 1.11 1.27 1.31 1.38 1.40 Nonaccrual loans $ 59,425 $ 60,742 $ 67,659 $ 75,092 $ 64,345 Repossessed assets 59,335 63,759 57,150 51,787 59,292 Loans past due 90 days, still accruing 8,284 3,730 5,132 3,558 3,001 Loans past due 30 to 89 days, still accruing 4,006 14,137 9,804 16,500 5,123 Classified loans on accrual 101,165 76,090 90,393 107,776 133,220 Special mention loans 132,313 100,345 97,504 98,265 90,534                       Western Alliance Bancorporation and Subsidiaries Analysis of Average Balances, Yields and Rates Unaudited         Three Months Ended June 30, 2015 2014

Average

Average Yield /

Average Average Yield / Balance Interest Cost Balance Interest Cost ($ in millions) ($ in thousands) ($ in millions) ($ in thousands) Interest earning assets Loans (1) $ 8,837.7 $ 105,468 5.06 % $ 7,178.3 $ 90,583 5.29 % Securities (1) 1,423.6 9,276 3.06 1,629.9 10,894 3.08 Other 309.4   1,874   2.42   292.4   496   0.68   Total interest earning assets 10,570.7 116,618 4.71 9,100.6 101,973 4.75 Non-interest earning assets Cash and due from banks 118.6 138.7 Allowance for credit losses (114.9 ) (105.0 ) Bank owned life insurance 143.2 141.8 Other assets 459.1   462.0   Total assets $ 11,176.7   $ 9,738.1   Interest-bearing liabilities Interest-bearing deposits: Interest-bearing transaction accounts $ 971.6 $ 414 0.17 % $ 791.5 $ 385 0.19 % Savings and money market 4,213.0 2,975 0.28 3,583.5 2,691 0.30 Time certificates of deposit 1,834.4   1,973   0.43   1,700.4   1,854   0.44   Total interest-bearing deposits 7,019.0 5,362 0.31 6,075.4 4,930 0.32 Short-term borrowings 177.8 1,774 3.99 236.2 216 0.37 Long-term debt 111.0 313 1.13 280.4 2,486 3.55 Junior subordinated debt 40.8   451   4.42   42.8   443   4.14   Total interest-bearing liabilities 7,348.6 7,900 0.43 6,634.8 8,075 0.49 Non-interest-bearing liabilities Non-interest-bearing demand deposits 2,593.5 2,045.5 Other liabilities 148.4 126.7 Stockholders’ equity 1,086.2   931.1   Total liabilities and stockholders' equity $ 11,176.7   $ 9,738.1   Net interest income and margin $ 108,718   4.41 % $ 93,898   4.39 % Net interest spread 4.28 % 4.26 %   (1) Yields on loans and securities have been adjusted to a tax equivalent basis. The taxable-equivalent adjustment was $7,878 and $6,029 for the three months ended June 30, 2015 and 2014, respectively.                       Western Alliance Bancorporation and Subsidiaries Analysis of Average Balances, Yields and Rates Unaudited         Six Months Ended June 30, 2015 2014 Average Average Yield / Average Average Yield / Balance Interest Cost Balance Interest Cost ($ in millions) ($ in thousands) ($ in millions) ($ in thousands) Interest earning assets Loans (1) $ 8,693.1 $ 205,859 5.01 % $ 7,036.5 $ 177,387 5.28 % Securities (1) 1,451.3 19,064 3.07 1,640.7 22,219 3.11 Other 223.3   2,657   2.38   251.6   1,068   0.85   Total interest earnings assets 10,367.7 227,580 4.68 8,928.8 200,674 4.76 Non-interest earning assets Cash and due from banks 118.3 138.1 Allowance for credit losses (113.0 ) (103.1 ) Bank owned life insurance 142.8 141.4 Other assets 454.6   447.6   Total assets $ 10,970.4   $ 9,552.8   Interest-bearing liabilities Interest-bearing deposits: Interest bearing transaction accounts $ 945.9 $ 808 0.17 % $ 778.3 $ 768 0.20 % Savings and money market 4,062.1 5,751 0.28 3,518.3 5,254 0.30 Time certificates of deposits 1,884.6   3,949   0.42   1,660.2   3,573   0.43   Total interest-bearing deposits 6,892.6 10,508 0.30 5,956.8 9,595 0.32 Short-term borrowings 177.6 3,525 3.97 201.8 345 0.34 Long-term debt 156.2 829 1.06 291.0 5,195 3.57 Junior subordinated debt 40.6   892   4.39   42.4   864   4.08   Total interest-bearing liabilities 7,267.0 15,754 0.43 6,492.0 15,999 0.49 Non-interest-bearing liabilities Non-interest-bearing demand deposits 2,482.3 2,049.8 Other liabilities 162.7 102.2 Stockholders’ equity 1,058.4   908.8   Total liabilities and stockholders' equity $ 10,970.4   $ 9,552.8   Net interest income and margin $ 211,826   4.38 % $ 184,675   4.40 % Net interest spread 4.25 % 4.27 %   (1) Yields on loans and securities have been adjusted to a tax equivalent basis. The taxable-equivalent adjustment was $15,267 and $11,734 for the six months ended June 30, 2015 and 2014, respectively.     Western Alliance Bancorporation and Subsidiaries Operating Segment Results Unaudited                               Balance Sheets: Central Southern Northern Business Corporate Consolidated Arizona Nevada California California Lines & Other Company At June 30, 2015 (dollars in millions) Assets: Cash, cash equivalents, and investment securities $ 2.3 $ 10.2 $ 2.6 $ 2.1 $ — $ 2,273.0 $ 2,290.2 Loans, net of deferred loan fees and costs 2,432.8 1,761.9 1,659.9 1,077.5 3,388.0 40.6 10,360.7 Less: allowance for credit losses (31.7 ) (23.0 ) (21.7 ) (3.2 ) (34.9 ) (0.6 ) (115.1 ) Total loans 2,401.1   1,738.9   1,638.2   1,074.3   3,353.1   40.0   10,245.6   Other assets acquired through foreclosure, net 18.6 23.4 — 1.6 — 15.7 59.3 Goodwill and other intangible assets, net — 25.4 — 155.2 119.4 — 300.0 Other assets 43.7   63.0   13.8   15.7   27.9   410.9   575.0   Total assets $ 2,465.7   $ 1,860.9   $ 1,654.6   $ 1,248.9   $ 3,500.4   $ 2,739.6   $ 13,470.1   Liabilities: Deposits $ 2,369.9 $ 3,316.9 $ 1,946.8 $ 1,550.2 $ 1,945.1 $ 277.8 $ 11,406.7 Borrowings and qualifying debt — — — — — 277.9 277.9 Other liabilities 20.3   29.2   3.5   8.4   77.6   131.8   270.8   Total liabilities 2,390.2   3,346.1   1,950.3   1,558.6   2,022.7   687.5   11,955.4   Allocated equity: 268.2   221.7   182.1   180.7   339.5   322.5   1,514.7   Total liabilities and stockholders' equity $ 2,658.4   $ 3,567.8   $ 2,132.4   $ 1,739.3   $ 2,362.2   $ 1,010.0   $ 13,470.1   Excess funds provided (used) (192.7 ) (1,706.9 ) (477.8 ) (490.4 ) 1,138.2 1,729.6 —   No. of offices 11 18 9 3 7 — 48 No. of full-time equivalent employees 219 280 196 199 138 379 1,411   At December 31, 2014 Assets: Cash, cash equivalents, and investment securities $ 2.3 $ 5.0 $ 2.2 $ 0.3 $ — $ 1,702.4 $ 1,712.2 Loans, net of deferred loan fees and costs 2,341.9 1,668.7 1,553.1 198.6 2,590.0 46.0 8,398.3 Less: allowance for credit losses (30.7 ) (21.9 ) (17.9 ) (5.1 ) (34.0 ) (0.6 ) (110.2 ) Total loans 2,311.2   1,646.8   1,535.2   193.5   2,556.0   45.4   8,288.1   Other assets acquired through foreclosure, net 15.5 21.0 — — — 20.6 57.1 Goodwill and other intangible assets, net — 25.9 — — — — 25.9 Other assets 34.8   64.2   6.2   15.3   22.9   373.8   517.2   Total assets $ 2,363.8   $ 1,762.9   $ 1,543.6   $ 209.1   $ 2,578.9   $ 2,142.2   $ 10,600.5   Liabilities: Deposits $ 2,178.0 $ 3,230.6 $ 1,744.5 $ 584.0 $ 946.6 $ 247.3 $ 8,931.0 Other borrowings — — — — — 390.3 390.3 Other liabilities 17.4   40.8   8.9   0.2   72.4   138.6   278.3   Total liabilities 2,195.4   3,271.4   1,753.4   584.2   1,019.0   776.2   9,599.6   Allocated equity: 250.8   209.0   70.9   126.8   232.9   110.5   1,000.9   Total liabilities and stockholders' equity $ 2,446.2   $ 3,480.4   $ 1,824.3   $ 711.0   $ 1,251.9   $ 886.7   $ 10,600.5   Excess funds provided (used) 82.4 1,717.5 280.7 501.9 (1,327.0 ) (1,255.5 ) —   No. of offices 11 18 9 2 — — 40 No. of full-time equivalent employees 215 295 198 29 99 295 1,131     Western Alliance Bancorporation and Subsidiaries Operating Segment Results Unaudited   Central Southern Northern Business Corporate Consolidated Arizona Nevada California California Lines & Other Company (dollars in millions) At June 30, 2014 Assets: Cash, cash equivalents, and investment securities $ 3.0 $ 7.0 $ 2.2 $ 0.2 $ — $ 1,973.6 $ 1,986.0 Loans, net of deferred loan fees and costs 2,131.0 1,682.6 1,515.3 179.5 1,951.5 84.6 7,544.5 Less: allowance for credit losses (29.9 ) (23.6 ) (18.7 ) (5.1 ) (27.4 ) (1.2 ) (105.9 ) Total loans 2,101.1   1,659.0   1,496.6   174.4   1,924.1   83.4   7,438.6   Other assets acquired through foreclosure, net 13.1 24.1 — — — 22.1 59.3 Goodwill and other intangible assets, net — 26.5 — — — — 26.5 Other assets 42.2   62.7   10.8   15.4   21.1   361.0   513.2   Total assets $ 2,159.4   $ 1,779.3   $ 1,509.6   $ 190.0   $ 1,945.2   $ 2,440.1   $ 10,023.6   Liabilities: Deposits $ 2,115.4 $ 3,187.8 $ 1,666.2 $ 394.9 $ 886.3 $ 218.9 $ 8,469.5 Other borrowings — — — — — 337.5 337.5 Other liabilities 20.9   46.8   4.7   0.1   24.7   161.7   258.9   Total liabilities 2,136.3   3,234.6   1,670.9   395.0   911.0   718.1   9,065.9   Allocated equity: 233.7   212.5   83.1   105.6   152.3   170.5   957.7   Total liabilities and stockholders' equity $ 2,370.0   $ 3,447.1   $ 1,754.0   $ 500.6   $ 1,063.3   $ 888.6   $ 10,023.6   Excess funds provided (used) 210.6 1,667.8 244.4 310.6 (881.9 ) (1,551.5 ) —   No. of offices 10 18 9 2 — — 39 No. of full-time equivalent employees 212 305 197 21 92 285 1,112                           Western Alliance Bancorporation and Subsidiaries Operating Segment Results Unaudited       Income Statements: Central Southern Northern Business Corporate Consolidated Arizona Nevada California California Lines & Other Company (in thousands) Three Months Ended June 30, 2015: Net interest income (expense) $ 32,091 $ 29,946 $ 24,070 $ 5,216 $ 24,432 $ (7,037 ) $ 108,718 Provision for credit losses 826   (3,148 ) 634   513   1,251   (76 ) —   Net interest income (expense) after provision for credit losses 31,265 33,094 23,436 4,703 23,181 (6,961 ) 108,718 Non-interest income 1,008 2,370 850 271 321 (7,011 ) (2,191 ) Non-interest expense (14,507 ) (14,918 ) (11,777 ) (2,142 ) (9,548 ) (8,317 ) (61,209 ) Income (loss) from continuing operations before income taxes 17,766 20,546 12,509 2,832 13,954 (22,289 ) 45,318 Income tax expense (benefit) 6,970   7,191   5,261   1,191   5,233   (15,247 ) 10,599   Net income $ 10,796   $ 13,355   $ 7,248   $ 1,641   $ 8,721   $ (7,042 ) $ 34,719     Six Months Ended June 30, 2015: Net interest income (expense) $ 61,076 $ 59,155 $ 46,560 $ 9,669 $ 47,742 $ (12,376 ) $ 211,826 Provision for (recovery of) credit losses 158   (2,799 ) 266   486   2,660   (71 ) 700   Net interest income (expense) after provision for credit losses 60,918 61,954 46,294 9,183 45,082 (12,305 ) 211,126 Non-interest income 1,947 4,653 1,515 322 1,037 (5,732 ) 3,742 Non-interest expense (29,268 ) (29,392 ) (23,398 ) (4,159 ) (18,826 ) (10,199 ) (115,242 ) Income (loss) from continuing operations before income taxes 33,597 37,215 24,411 5,346 27,293 (28,236 ) 99,626 Income tax expense (benefit) 13,180   13,025   10,265   2,248   10,235   (24,236 ) 24,717   Net income $ 20,417   $ 24,190   $ 14,146   $ 3,098   $ 17,058   $ (4,000 ) $ 74,909       Western Alliance Bancorporation and Subsidiaries Operating Segment Results Unaudited                               Income Statements: Central Southern Northern Business Corporate Consolidated Arizona Nevada California California Lines & Other Company (in thousands) Three Months Ended June 30, 2014: Net interest income (expense) $ 29,211 $ 29,359 $ 22,502 $ 2,200 $ 16,226 $ (5,600 ) $ 93,898 Provision for credit losses 3   (2,011 ) (1,672 ) —   3,467   720   507   Net interest income (expense) after provision for credit losses 29,208 31,370 24,174 2,200 12,759 (6,320 ) 93,391 Non-interest income 934 2,248 865 34 643 874 5,598 Non-interest expense (12,793 ) (15,922 ) (12,410 ) (861 ) (6,640 ) (3,615 ) (52,241 ) Income (loss) from continuing operations before income taxes 17,349 17,696 12,629 1,373 6,762 (9,061 ) 46,748 Income tax expense (benefit) 6,805   6,194   5,310   577   2,536   (10,716 ) 10,706   Income from continuing operations 10,544 11,502 7,319 796 4,226 1,655 36,042 Loss from discontinued operations, net —   —   —   —   —   (504 ) (504 ) Net income $ 10,544   $ 11,502   $ 7,319   $ 796   $ 4,226   $ 1,151   $ 35,538     Six Months Ended June 30, 2014: Net interest income (expense) $ 55,819 $ 57,954 $ 43,181 $ 4,313 $ 30,190 $ (6,782 ) $ 184,675 Provision for credit losses 1,561   (2,895 ) (1,017 ) —   5,637   721   4,007   Net interest income (expense) after provision for credit losses 54,258 60,849 44,198 4,313 24,553 (7,503 ) 180,668 Non-interest income 1,710 4,384 2,015 65 725 1,268 10,167 Non-interest expense (26,053 ) (31,005 ) (24,358 ) (1,887 ) (13,148 ) (5,273 ) (101,724 ) Income (loss) from continuing operations before income taxes 29,915 34,228 21,855 2,491 12,130 (11,508 ) 89,111 Income tax expense (benefit) 11,734   11,981   9,190   1,047   4,549   (17,171 ) 21,330   Income from continuing operations 18,181 22,247 12,665 1,444 7,581 5,663 67,781 Loss from discontinued operations, net —   —   —   —   —   (1,158 ) (1,158 ) Net income $ 18,181   $ 22,247   $ 12,665   $ 1,444   $ 7,581   $ 4,505   $ 66,623       Western Alliance Bancorporation and Subsidiaries Reconciliation of Non-GAAP Financial Measures Unaudited                     Pre-Tax, Pre-Provision Operating Earnings by Quarter: Three Months Ended Jun 30, 2015 Mar 31, 2015 Dec 31, 2014 Sep 30, 2014 Jun 30, 2014 (in thousands) Total non-interest income $ (2,191 ) $ 5,933 $ 8,417 $ 5,992 $ 5,598 Less: Gains (losses) on sales of investment securities, net 55 589 373 181 (163 ) Unrealized (losses) gains on assets and liabilities measured at fair value, net (7,885 ) (309 ) 1,357 896 235 Loss on extinguishment of debt (81 ) —   —   (502 ) —   Total operating non-interest income 5,720 5,653 6,687 5,417 5,526 Plus: net interest income 108,718   103,108   102,145   98,073   93,898   Net operating revenue (1) $ 114,438   $ 108,761   $ 108,832   $ 103,490   $ 99,424     Total non-interest expense $ 61,209 $ 54,033 $ 55,742 $ 49,778 $ 52,241 Less: Net (gain) loss on sales and valuations of repossessed and other assets (1,218 ) (351 ) (1,102 ) (1,956 ) 184 Merger / restructure expense 7,842   159   —   15   26   Total operating non-interest expense (1) $ 54,585   $ 54,225   $ 56,844   $ 51,719   $ 52,031             Pre-tax, pre-provision operating earnings (2) $ 59,853   $ 54,536   $ 51,988   $ 51,771   $ 47,393     Tangible Common Equity: Jun 30, 2015 Mar 31, 2015 Dec 31, 2014 Sep 30, 2014 Jun 30, 2014 (dollars and shares in thousands) Total stockholders' equity $ 1,514,744 $ 1,051,330 $ 1,000,928 $ 1,003,122 $ 957,664 Less: goodwill and intangible assets 299,975   25,632   25,913   26,194   26,475   Total tangible stockholders' equity 1,214,769 1,025,698 975,015 976,928 931,189 Less: preferred stock 70,500   70,500   70,500   141,000   141,000   Total tangible common equity 1,144,269 955,198 904,515 835,928 790,189 Plus: deferred tax - attributed to intangible assets 6,515   903   1,006   1,138   1,138   Total tangible common equity, net of tax $ 1,150,784   $ 956,101   $ 905,521   $ 837,066   $ 791,327   Total assets $ 13,470,103 $ 11,251,943 $ 10,600,498 $ 10,288,824 $ 10,023,587 Less: goodwill and intangible assets, net 299,975   25,632   25,913   26,194   26,475   Tangible assets 13,170,128 11,226,311 10,574,585 10,262,630 9,997,112 Plus: deferred tax - attributed to intangible assets 6,515   903   1,006   1,138   1,138   Total tangible assets, net of tax $ 13,176,643   $ 11,227,214   $ 10,575,591   $ 10,263,768   $ 9,998,250   Tangible common equity ratio (3) 8.7 % 8.5 % 8.6 % 8.2 % 7.9 % Common shares outstanding 102,291 89,180 88,691 87,849 87,774 Tangible book value per share, net of tax (4) $ 11.25 $ 10.72 $ 10.21 $ 9.53 $ 9.02                   Western Alliance Bancorporation and Subsidiaries Reconciliation of Non-GAAP Financial Measures Unaudited     Efficiency Ratio by Quarter: Three Months Ended Jun 30, 2015 Mar 31, 2015 Dec 31, 2014 Sep 30, 2014 Jun 30, 2014 (in thousands) Total operating non-interest expense $ 54,585 $ 54,225 $ 56,844 $ 51,719 $ 52,031 Divided by: Total net interest income 108,718 103,108 102,145 98,073 93,898 Plus: Tax equivalent interest adjustment 7,878 7,389 6,489 6,348 6,029 Operating non-interest income 5,720   5,653   6,687   5,417   5,526   $ 122,316   $ 116,150   $ 115,321   $ 109,838   $ 105,453   Efficiency ratio - tax equivalent basis (5) 44.6 % 46.7 % 49.3 % 47.1 % 49.3 %   Allowance for Credit Losses, Adjusted for Acquisition Accounting:       Jun 30, 2015     Dec 31, 2014 Allowance for credit losses $ 115,056 $ 110,216 Plus: remaining credit marks Acquired performing loans 16,197 2,041 Purchased credit impaired loans 8,643   9,279   Adjusted allowance for credit losses 139,896 121,536   Gross loans held for investment and deferred fees, net 10,321,221 8,398,265 Plus: remaining credit marks Acquired performing loans 16,197 2,041 Purchased credit impaired loans 8,643   9,279   Adjusted loans, net of deferred fees and costs 10,346,061 8,409,585   Allowance for credit losses to gross loans 1.11 % 1.31 % Allowance for credit losses to gross loans, adjusted for acquisition accounting (6) 1.35 1.45     Western Alliance Bancorporation and Subsidiaries Reconciliation of Non-GAAP Financial Measures Unaudited       Regulatory Capital:     Basel III June 30, 2015 (in thousands) Common Equity Tier 1: Common equity $ 1,444,244 Less: Accumulated other comprehensive income 15,348 Non-qualifying goodwill and intangibles 289,217 Disallowed deferred tax asset 3,093 Unrealized gain on trust preferred securities 5,965   Common equity Tier 1 (regulatory) (7) (10) 1,130,621 Plus: Trust preferred securities 81,500 Preferred stock 70,500 Less: Disallowed deferred tax asset 4,640 Unrealized gain on trust preferred securities 8,948   Tier 1 capital (8) (10) $ 1,269,033 Divided by: estimated risk-weighted assets (regulatory (8) (10) $ 12,439,928   Common equity Tier 1 ratio (8) (10) 9.1 %   Total Capital: Tier 1 capital (regulatory) (7) (10) $ 1,269,033 Plus: Subordinated debt 136,778 Qualifying allowance for credit losses 115,056 Other 2,124 Less: Tier 2 qualifying capital deductions —   Tier 2 capital $ 253,958   Total capital 1,522,991   Tier 1 Capital: Classified assets $ 230,959 Divided by: Common equity Tier 1 (regulatory) (7) (10) 1,130,621 Plus: Allowance for credit losses 115,056   Total Common equity Tier 1 plus allowance for credit losses $ 1,245,677   Classified assets to common equity Tier 1 plus allowance (9) (10) 19 %   (1)     We believe these non-GAAP measurements provide a useful indication of the cash generating capacity of the Company. (2) We believe this non-GAAP measurement is a key indicator of the earnings power of the Company. (3) We believe these non-GAAP ratios provide an important metric with which to analyze and evaluate financial condition and capital strength. (4) We believe this non-GAAP ratio improves the comparability to other institutions that have not engaged in acquisitions that resulted in recorded goodwill and other intangibles. (5) We believe this non-GAAP ratio provides a useful metric to measure the operating efficiency of the Company. (6) We believe this non-GAAP ratio is a useful metric in understanding the Company's total allowance for credit losses, adjusted for acquisition accounting, as under U.S. GAAP, a company's allowance for credit losses is not carried over in an acquisition, rather these loans are shown as being purchased at a discount that factors in expected future credit losses. (7) Under the current guidelines of the Federal Reserve and the Federal Deposit Insurance Corporation, common equity Tier 1 capital consists of common stock, retained earnings, and minority interests in certain subsidiaries, less most other intangible assets. (8) Common equity Tier 1 is often expressed as a percentage of risk-weighted assets. Under the risk-based capital framework, a bank's balance sheet assets and credit equivalent amounts of off-balance sheet items are assigned to one of the risk categories defined under new capital guidelines. The aggregated dollar amount in each category is then multiplied by the risk weighting assigned to that category. The resulting weighted values from each category are added together and this sum is the risk-weighted assets total that, as adjusted, comprises the denominator (risk-weighted assets) to determine the common equity Tier 1 ratio. Common equity Tier 1 is divided by the risk-weighted assets to determine the common equity Tier 1 ratio. We believe this non-GAAP ratio provides an important metric with which to analyze and evaluate financial condition and capital strength. (9) We believe this non-GAAP ratio provides an important regulatory metric to analyze asset quality. (10) Current quarter is preliminary until Call Reports are filed.

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Western Alliance BancorporationDale Gibbons, 602-952-5476