Exhibit 99.4

UNAUDITED PRO FORMA CONDENSED COMBINED
FINANCIAL STATEMENTS

     The following unaudited pro forma condensed combined balance sheet as of September 30, 2009 and the unaudited pro forma condensed combined statements of operations for the nine months ended September 30, 2009 and for the fiscal year ended December 31, 2008 are based on the historical financial statements of Informatica Corporation (“Informatica”) and Siperian, Inc. (“Siperian”) after giving effect to the acquisition of all the capital stock of Siperian by Informatica in a cash merger transaction valued at approximately $130 million by Informatica, and after applying the assumptions, reclassifications and adjustments described in the accompanying notes to the unaudited pro forma condensed combined financial statements. The acquisition was completed on January 28, 2010.

     Informatica has prepared the unaudited pro forma condensed combined financial statements only for illustrative purposes. These unaudited pro forma condensed combined financial statements reflect preliminary estimates and assumptions based on information available at the time of the preparation, including preliminary fair value estimates of the intangible assets acquired and net liabilities assumed as discussed below. The unaudited pro forma condensed combined financial statements do not represent the consolidated results of operations or financial condition of Informatica had the acquisition been completed as the dates presented and should not be viewed as representative of the future consolidated results of operations or financial condition of Informatica. The unaudited pro forma condensed combined financial statements do not reflect any operating efficiencies and cost savings that Informatica may achieve with respect to the merged operations.

     Informatica and Siperian have two different fiscal year ends. Accordingly, the unaudited pro forma condensed combined balance sheet as of September 30, 2009 combines Informatica’s historical unaudited condensed consolidated balance sheet as of September 30, 2009 and Siperian’s historical unaudited condensed consolidated balance sheet as of August 31, 2009 and is presented as if the acquisition of Siperian had occurred on September 30, 2009. The unaudited pro forma condensed combined statement of operations for the nine months ended September 30, 2009 combines the unaudited historical results of Informatica for the nine months ended September 30, 2009 and the unaudited historical results of Siperian for the nine months ended August 31, 2009. The unaudited pro forma condensed combined statement of operations for the fiscal year ended December 31, 2008 combines the historical results of Informatica for the year ended December 31, 2008 and the unaudited historical results of Siperian for the twelve months ended November 30, 2008. The unaudited pro forma condensed combined statements of operations are presented as if the acquisition had occurred on January 1, 2008.

     The acquisition has been accounted for in accordance with the Financial Accounting Standards Board (“FASB”) guidance under Business Combination (ASC 805). Accordingly, the total estimated purchase price, calculated as described in Note 1 to these unaudited pro forma condensed combined financial statements, has been allocated on a preliminary basis to intangible assets acquired and net liabilities assumed in connection with the acquisition based on their estimated fair values as of the completion of the acquisition. These allocations reflect various assumptions, estimates, and analyses.

     The unaudited pro forma condensed combined financial statements should be read in conjunction with Informatica’s historical consolidated financial statements and accompanying notes contained in Informatica’s Annual Report on Form 10-K for its fiscal year ended December 31, 2008 and Quarterly Report on Form 10-Q for its quarter ended September 30, 2009 and Siperian’s historical consolidated financial statements and accompanying notes for its fiscal year ended May 31, 2009 and the unaudited six month periods ended November 30, 2009 and 2008, which are included as Exhibits 99.2 and 99.3, respectively, to this Form 8-K/A.

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INFORMATICA CORPORATION

UNAUDITED PRO FORMA CONDENSED COMBINED BALANCE SHEET
As of September 30, 2009
(Amounts in thousands, except share and per-share data)

		Historical
		September 30, 2009				August 31, 2009				Pro Forma				Pro Forma
		Informatica				Siperian (1)				Adjustments				Combined
Assets
Current assets:
Cash and cash equivalents		$	138,457			$	6,436			$	(102,917	) (a)		$	41,976
Short-term investments			284,932				—				—				284,932
Accounts receivable, net			83,625				5,571				(354	) (b)			88,842
Deferred tax assets			24,273				—				—				24,273
Prepaid expenses and other current assets			13,560				747				(43	) (b)			14,264
Total current assets			544,847				12,754				(103,314	)			454,287
Property and equipment, net			8,042				831				—				8,873
Goodwill			287,569				—				79,445	(a)(c)			367,014
Other intangible assets, net			68,808				—				24,890	(a)			93,698
Long-term deferred tax assets			2,481				—				17,303	(d)			19,784
Other assets			8,324				170				—				8,494
Total assets		$	920,071			$	13,755			$	18,324			$	952,150
Liabilities, Conditionally Redeemable Convertible Preferred Stock and Stockholders’ Equity (Deficit)
Current liabilities:
Accounts payable and accrued liabilities		$	38,433			$	4,901			$	3,718	(e) (i)		$	47,052
Accrued compensation and related expenses			29,058				1,405				6,136	(i)			36,599
Income taxes payable			12,956				—				5,009	(f)			17,965
Accrued facilities restructuring charges			20,567				—				—				20,567
Deferred revenues			126,040				5,976				(4,510	) (g)			127,506
Total current liabilities			227,054				12,282				10,353				249,689
Convertible senior notes			201,000				—				—				201,000
Notes payable and warrant			—				9,665				(263	) (h)			9,402
Accrued facilities restructuring charges, less current portion			35,973				—				—				35,973
Long-term deferred revenues			6,033				146				(104	) (g)			6,075
Long-term income taxes payable			12,180				—				—				12,180
Total liabilities			482,240				22,093				9,986				514,319
Conditionally redeemable convertible preferred stock:
$0.001 par value; issuable in series; 73,689,074 shares authorized; 73,027,381 shares issued and outstanding; aggregate liquidation preference of $60,023			—				68,100				(68,100	) (h)			—
Stockholders’ equity (deficit):
Common stock			89				3				(3	) (h)			89
Additional paid-in capital			412,073				1,449				(1,449	) (h)			412,073
Accumulated other comprehensive income			911				—				—				911
Retained earnings (accumulated deficit)			24,758				(77,890	)			77,890	(h)			24,758
Total stockholders’ equity (deficit)			437,831				(76,438	)			76,438				437,831
Total liabilities, conditionally redeemable convertible preferred stock and stockholders’ equity (deficit)		$	920,071			$	13,755			$	18,324			$	952,150

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INFORMATICA CORPORATION

UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENT OF OPERATIONS
For the Nine Months Ended September 30, 2009
(Amounts in thousands, except share and per-share data)

		Historical
		Nine months ended
		September 30, 2009				August 31, 2009				Pro Forma				Pro Forma
		Informatica				Siperian (1)				Adjustments				Combined
Revenues:
License		$	142,770			$	12,912			$	(731	) (j)		$	154,951
Service			207,026				10,146				(390	) (k)(l)			216,782
Total revenues			349,796				23,058				(1,121	)			371,733
Cost of revenues:
License			2,024				1,203				(670	) (m)			2,557
Service			55,605				6,115				(282	) (m)			61,438
Amortization of acquired technology			5,497				—				2,286	(n)			7,783
Total cost of revenues			63,126				7,318				1,334				71,778
Gross profit			286,670				15,740				(2,455	)			299,955
Operating expenses:
Research and development			57,089				6,382				—				63,471
Sales and marketing			135,366				13,760				—				149,126
General and administrative			30,646				6,066				—				36,712
Amortization of intangible assets			7,239				—				309	(n)			7,548
Facilities restructuring charges			1,961				—				—				1,961
Total operating expenses			232,301				26,208				309				258,818
Income (loss) from operations			54,369				(10,468	)			(2,764	)			41,137
Interest income, expense, and other net			752				(509	)			(975	) (o)			(732	)
Income (loss) before income taxes			55,121				(10,977	)			(3,739	)			40,405
Income tax provision (benefit)			15,881				31				(6,999	) (p)			8,913
Net income (loss)		$	39,240			$	(11,008	)		$	3,260			$	31,492
Basic net income per common share		$	0.45				—				—			$	0.36
Diluted net income per common share		$	0.41				—				—			$	0.34
Shares used in computing basic net income per common share			87,837				—				—				87,837
Shares used in computing diluted net income per common share			102,507				—				—				102,507

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INFORMATICA CORPORATION

UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENT OF OPERATIONS
For the Year Ended December 31, 2008
(Amounts in thousands, except share and per-share data)

		Historical
		For the year ended
		December 31, 2008				November 30, 2008				Pro Forma				Pro Forma
		Informatica				Siperian (1)				Adjustments				Combined
Revenues:
License		$	195,769			$	8,933			$	(233	) (j)		$	204,469
Service			259,930				11,755				(2,106	) (k)(l)			269,579
Total revenues			455,699				20,688				(2,339	)			474,048
Cost of revenues:
License			3,291				684				(354	) (m)			3,621
Service			80,287				8,684				(229	) (m)			88,742
Amortization of acquired technology			4,125				—				3,049	(n)			7,174
Total cost of revenues			87,703				9,368				2,466				99,537
Gross profit			367,996				11,320				(4,805	)			374,511
Operating expenses:
Research and development			72,522				8,500				—				81,022
Sales and marketing			177,339				19,102				—				196,441
General and administrative			37,411				7,218				—				44,629
Amortization of intangible assets			4,575				—				493	(n)			5,068
Facilities restructuring charges			3,018				—				—				3,018
Purchased in-process research and development			390				—				—				390
Patent related litigation proceeds net of patent contingency accruals			(11,495	)			—				—				(11,495	)
Total operating expenses			283,760				34,820				493				319,073
Income (loss) from operations			84,236				(23,500	)			(5,298	)			55,438
Interest income, expense, and other net			7,737				257				(3,454	) (o)			4,540
Income (loss) before income taxes			91,973				(23,243	)			(8,752	)			59,978
Income tax provision (benefit)			35,993				11				(9,859	) (p)			26,145
Net income (loss)		$	55,980			$	(23,254	)		$	1,107			$	33,833
Basic net income per common share		$	0.64				—				—			$	0.38
Diluted net income per common share		$	0.58				—				—			$	0.37
Shares used in computing basic net income per common share			88,109				—				—				88,109
Shares used in computing diluted net income per common share			103,278				—				—				103,278

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NOTES TO UNAUDITED PRO FORMA CONDENSED COMBINED
FINANCIAL STATEMENTS
(Amounts in thousands)

Note 1: Basis of Pro Forma Presentation

     On January 28, 2010, Informatica acquired Siperian, a private company incorporated in Delaware. Siperian is a leader in the Master Data Management (MDM) infrastructure technology category. MDM provides a holistic, single view of foundational business entities, commonly referred to as master data such as customers, employees, citizens, locations and products. Siperian delivers a multidomain MDM platform to optimize business decisions across multiple entities or considerations, and its technology expedites deployment time with easy-to-configure capabilities.

     Informatica assigned preliminary fair values to the identified intangible assets acquired in accordance with the guidelines established in Business Combinations (ASC 805). The allocation of the purchase price for this acquisition as of the date of the acquisition is as follows:

Goodwill, pre-tax gross up		$	92,771
Developed and core technology			21,340
In process research and development (IPR&D)			1,920
Customer relationships			1,630
Assumed liabilities, net of assets			(14,744	)
Total estimated purchase price		$	102,917

Note 2: Reclassifications

     Certain reclassifications have been made to conform Siperian’s historical amounts to Informatica’s presentation. These adjustments primarily relate to reclassification of some long-term liabilities to short-term liabilities since Informatica intended to settle these liabilities at the time of acquisition or shortly after the acquisition.

Note 3: Pro Forma Adjustments

     The pro forma adjustments included in the unaudited pro forma condensed combined consolidated financial statements are as follows:

(a)

See Note 1. Basis of Pro Forma Presentation above for a further discussion.

(b)

To adjust accounts receivable and prepaid for intercompany transactions. These transactions are related to products that Informatica and its subsidiaries had sold to Siperian during the periods presented.

(c)

To record tax credit adjustments of $13,326 to goodwill as follows:

Deferred tax assets related to net operating losses not previously benefited		$	(28,810	)
Deferred tax liabilities related to purchased intangibles			9,707
Accrued liabilities and compensation accruals			5,777
		$	(13,326	)

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NOTES TO UNAUDITED PRO FORMA CONDENSED COMBINED
FINANCIAL STATEMENTS (CONTINUED)
(Amounts in thousands)

(d)

To record long term deferred tax assets related to deferred tax assets for net operating losses that Company did not benefit previously net of deferred tax liabilities for purchased intangibles and the tax effects of fair value adjustments.

(e)

To eliminate intercompany liabilities for $344 due to products and services sold by Informatica and its subsidiaries to Siperian.

(f)

To record tax liabilities accrued for $1,032 due to adoption of ASC 740-10 by Siperian and additional accrued liabilities assumed and compensation accruals for $3,977 due to the acquisition.

(g)

To adjust deferred revenues to its estimated fair value from its historical values.

(h)

To eliminate common stock, redeemable convertible preferred stock, additional paid-in capital, and accumulated deficit of $77,890, and payment of $263 for warrant outstanding to shareholders subsequent to acquisition.

(i)

To reflect additional liabilities assumed due to the acquisition for $10,198 of which $4,062 is related to accounts payable and accrued liabilities and $6,136 is related to accrued compensation.

(j)

To eliminate the intercompany license revenues of $731 for the nine months ended September 30, 2009, and to reduce the license revenues for intercompany transactions of $214 and fair value adjustment of $19 from historical fair value to estimated fair market value for the twelve months ended December 31, 2008.

(k)

To adjust the difference between the estimated fair value and historical value of deferred revenues for $63 for the nine months ended August 31, 3009 and $1,877 for the twelve months ended November 30, 2008.

(l)

To eliminate the intercompany revenues of $327 for the nine months ended September 30, 2009 and $229 for the twelve months ended December 31, 2008. These transactions are related to products that Informatica and its subsidiaries had sold to Siperian during the periods presented.

(m)

To eliminate the intercompany transactions related to the cost of revenues for the products and services that Informatica and its subsidiaries sold to Siperian:

						Twelve Months
		Nine Months Ended				Ended
		September 30,				December 31,
		2009				2008
Cost of revenues:
License		$	(670	)		$	(354	)
Service			(282	)			(229	)
		$	(952	)		$	(583	)

(n)

To record amortization expenses for the nine months ended September 30, 2009 and twelve months ended December 31, 2008, related to acquired intangible assets as follows:

										Amortization Expense
										Nine Months				Twelve Months
		Estimated				Estimated				Ended				Ended
		Fair				Useful Life				September 30,				December 31,
		Value				(in years)				2009				2008
Developed and core technology		$	21,340				7			$	2,286			$	3,049
Customer relationships			1,630				6				309				493
		$	22,970							$	2,595			$	3,542

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NOTES TO UNAUDITED PRO FORMA CONDENSED COMBINED
FINANCIAL STATEMENTS (CONTINUED)
(Amounts in thousands)

(o)

The interest income of $1,436 and $3,817 was based on 1.50% and 2.99% average rate of return for the nine months ended September 30, 2009 and twelve months ended December 31, 2008, respectively. The amounts also include adjustments to interest expense related to Siperian’s term loan and notes payable to shareholders for $461 and $363 for the nine months ended September 30, 2009 and twelve months ended December 31, 2008, respectively.

(p)

To record income tax benefit related to the acquisition netted against an immaterial expense related to Siperian’s pro forma adoption of ASC 740-10 on January 1, 2008 and previously unbenefitted credit.

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