SEC FORM 4 SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person*
Camber Capital Management LP

(Last) (First) (Middle)
101 HUNTINGTON AVENUE
SUITE 2101

(Street)
BOSTON MA 02199

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
AMAG PHARMACEUTICALS, INC. [ AMAG ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director X 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
08/07/2019
4. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 08/07/2019 08/07/2019 P 301,000 A $7.7857 4,306,000 I See Footnotes(1)(2)
Common Stock 08/07/2019 08/07/2019 P 50,000 A $7.74 4,356,000 I See Footnotes(1)(3)
Common Stock 08/07/2019 08/07/2019 P 4,000 A $7.575 4,360,000 I See Footnotes(1)(4)
Common Stock 08/09/2019 08/09/2019 P 26,600 A $8.9395 4,386,600 I See Footnotes(1)(5)
Common Stock 08/09/2019 08/09/2019 P 3,400 A $9.1781 4,390,000 I See Footnotes(1)(6)(7)
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Explanation of Responses:
1. Securities reported herein for Camber Capital Management LP (the "LP" ) represent Common Stock beneficially owned and held of record by Camber Capital Master Fund, L.P. (the "Master Fund") and another private investment fund (the "Fund") for which the LP serves as the investment manager. Stephen DuBois is the managing member of the LP and managing member of the general partner for the Fund and the Master Fund. The LP, the Master Fund, the Fund, the general partner and Mr. DuBois (the "Reporting Persons") are each beneficial owners and have an address of 101 Huntington Avenue, Floor 21, Boston, MA 02199. The Reporting Persons disclaim beneficial ownership, within the meaning of Section 16 of the Securities Exchange Act of 1934, as amended, or otherwise of such portion of the shares in which the Reporting Persons have no actual pecuniary interest therein.
2. Of the securities reported for this transaction, 299,074 shares of Common Stock were purchased for the account of the Master Fund and 1,926 shares of Common Stock were purchased for the account of the Fund
3. Of the securities reported for this transaction, 49,680 shares of Common Stock were purchased for the account of the Master Fund and 320 shares of Common Stock were purchased for the account of the Fund
4. Of the securities reported for this transaction, 3,974 shares of Common Stock were purchased for the account of the Master Fund and 26 shares of Common Stock were purchased for the account of the Fund
5. Of the securities reported for this transaction, 26,430 shares of Common Stock were purchased for the account of the Master Fund and 170 shares of Common Stock were purchased for the account of the Fund
6. Of the securities reported for this transaction, 3,378 shares of Common Stock were purchased for the account of the Master Fund and 22 shares of Common Stock were purchased for the account of the Fund
7. As of the closing of trading on August 09, 2019, 4,361,316 shares of Common Stock were held for the account of the Master Fund and 28,684 shares of Common Stock were held for the account of the Fund.
/s/ Stephen DuBois 08/09/2019
** 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 4 (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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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