13G Filing: Camber Capital Management and AMAG Pharmaceuticals Inc. (AMAG)

Page 2 of 6 – SEC Filing

13G

CUSIP No. 00163U106
Page 2 of
6
 
1. Names of
Reporting Persons.
Camber Capital
Management LLC
42-1693587
 
2. Check the
Appropriate Box if a Member of a Group
(a) ☐
(b) ☐

3. SEC Use Only
4. Citizenship or
Place of Organization
Massachusetts
   Number
of Shares
   Beneficially
   Owned by
   Each Reporting
   Person With:
5. Sole Voting
Power
0
shares
6. Shared Voting
Power
2,130,000
shares
 
7. Sole Dispositive
Power
0
shares
8. Shared
Dispositive Power
2,130,000
shares
  9. Aggregate
Amount Beneficially Owned by Each Reporting Person
Camber Capital
Management LLC

2,130,000
shares

10. Check if the Aggregate Amount in Row (9) Excludes Certain
Shares       ☐
11. Percent of
Class Represented by Amount in Row (9)
Camber Capital
Management LLC

6.08%
12. Type of
Reporting Person
Camber Capital
Management LLC – 00 (Limited Liability Company)
 
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