SEC Form 3

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 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person* MORGAN STANLEY INVESTMENT MANAGEMENT INC (Last) (First) (Middle) 522 FIFTH AVENUE 19TH FLOOR (Street) NEW YORK NY 10036 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 04/19/2011	3. Issuer Name and Ticker or Trading Symbol Sagent Pharmaceuticals, Inc. [ SGNT ]
		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 of Original Filed (Month/Day/Year)
			6. Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person X Form filed by More than One Reporting Person

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(1)	4,288,837	I	See footnote(2)(3)

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: 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

1. Name and Address of Reporting Person* MORGAN STANLEY INVESTMENT MANAGEMENT INC (Last) (First) (Middle) 522 FIFTH AVENUE 19TH FLOOR (Street) NEW YORK NY 10036 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* MORGAN STANLEY AIP GP LP (Last) (First) (Middle) 100 FRONT STREET SUITE 400 (Street) WEST CONSHOHOCKEN PA 19428 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

Explanation of Responses:

1. Represents shares of Common Stock owned by certain funds (each, a "Fund" and collectively, the "Funds") and certain separately managed accounts managed by the undersigned on account of the automatic conversion of its 33,615,106 Series A preference shares of Sagent Holding Co., a Cayman Islands company, in connection with its reincorporation as a Delaware corporation pursuant to a Certificate of Conversion filed with the Secretary of State of the State of Delaware (the "Reincorporation"), and the related one-for-7.8378 reverse stock split to be implemented in connection therewith. The Reincorporation will become effective prior to closing of the initial public offering.

2. The shares reported are held of record by Stormlaunch & Co., Sailorshell & Co., Stormbay & Co., Stormstar & Co., Weyerhaeuser Company Master Retirement Trust, Sailorpier & Co., Factory Mutual Insurance Company and Nuclear Electric Insurance Limited.

3. The reported securities are held directly by the Funds and certain separately managed accounts managed by each of the reporting persons. Morgan Stanley Investment Management Inc. ("MSIM") is the investment manager of one or more of the separately managed accounts and Morgan Stanley AIP GP LP ("AIP") is the investment manager of one or more of the Funds. This form is filed without prejudice to the reporting persons' position that none of the Funds nor any subsidiaries of the reporting persons, nor the reporting persons individually or in aggregate, are required to file beneficial ownership reports under Section 16(a) of the Securities Exchange Act of 1934, and should not be construed or interpreted as a concession or admission that such reports are required.

	/s/ Mary Ann Picciotto	04/27/2011
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
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