FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person *   PEGASYSTEMS INC 2. Date of Event Requiring Statement (Month/Day/Year) 04/21/2010 3. Issuer Name and Ticker or Trading Symbol CHORDIANT SOFTWARE INC [CHRD] (Last) (First) (Middle) 101 MAIN STREET 4. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director __X__ 10% Owner _____ Officer (give title below) _____ Other (specify below) 5. If Amendment, Date Original Filed(Month/Day/Year) (Street) CAMBRIDGE, MA 02142 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Beneficially Owned

1.Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5) COMMON STOCK, PAR VALUE $0.001 PER SHARE 1,000 (1) (2) (3) (4) I Beneficially owned through its wholly-owned subsidiary.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.			SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
PEGASYSTEMS INC 101 MAIN STREET CAMBRIDGE, MA 02142	Â	  X	Â	Â

Signatures

/s/ Shawn Hoyt		04/21/2010
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 5(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	On March 14, 2010, Pegasystems Inc., a Massachusetts corporation ("Pegasystems"), Maple Leaf Acquisition Corp., a Delaware corporation and a wholly-owned subsidiary of Pegasystems ("Purchaser") and Chordiant Software, Inc., a Delaware corporation ("Chordiant"), entered into an Agreement and Plan of Merger (the "Merger Agreement"). Pursuant to the Merger Agreement, Purchaser offered to purchase all outstanding shares of common stock, par value $0.001 per share, of Chordiant (the "Shares"), at a price of $5.00 per Share, net to the holder in cash without interest thereon, less any required withholding taxes, upon the terms and subject to the conditions set forth in the Offer to Purchase dated March 24, 2010 and in the related Letter of Transmittal (which, together with any amendments or supplements thereto, collectively constituted the "Offer")
(2)	Upon the expiration of the Offer at 12:00 Midnight (one minute after 11:59 p.m.), New York City time, on April 20, 2010, Purchaser accepted for payment approximately 24,998,423 Shares pursuant to the Offer (including 1,110,825 Shares that were tendered pursuant to guaranteed delivery procedures), representing approximately 81.8% of the Shares issued and outstanding as of April 20, 2010.
(3)	In order to accomplish the merger of Purchaser with and into the Company as a "short form" merger under Delaware law, on April 21, 2010, Purchaser exercised its "top-up" option pursuant to the Merger Agreement, which permitted Purchaser to purchase additional Shares directly from the Company for $5.00 per share, the same dollar amount per Share paid in the Offer, in order to acquire total ownership of at least 90% of the outstanding Shares.
(4)	Pursuant to the terms of the Merger Agreement, on April 21, 2009 Purchaser merged with and into the Company and each share of common stock, par value $0.01 per share, of Purchaser that was issued and outstanding immediately prior to the Merger was converted into one Share of the Company, as the surviving corporation. As a result of the Merger, Pegasystems beneficially owned 1,000 Shares, representing 100% of the Shares, which was the number of shares of common stock of Purchaser issued and outstanding immediately prior to the Merger.

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