Institutional Ownership
Amag Pharmaceuticals Inc
CUSIP 00163U106COMMON STOCKAMAGQ1 2026
13D / 13G Filings
13
Schedule 13D/13G on record
Beneficial Filers
10
Distinct reporting persons
Largest Stake
16.4%
Max % of class reported
Institutional Holders
1
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
13 filings · latest Feb 16, 2021
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Feb 16, 2021 | Camber Capital Management LP | 13G/A | — | — | SEC |
| 2 | Feb 16, 2021 | Palo Alto Investors LP | 13G/A | — | — | SEC |
| 3 | Feb 10, 2021 | Renaissance Technologies LLC | 13G/A | — | — | SEC |
| 4 | Nov 16, 2020 | Caligan Partners LP | 13D/A | — | — | SEC |
| 5 | Oct 13, 2020 | Magnetar Financial LLC | 13D | 6.9% | 2.38M | SEC |
| 6 | Oct 7, 2020 | Armistice Capital, LLC | 13G/A | — | — | SEC |
| 7 | Feb 14, 2020 | Palo Alto Investors LP | 13G/A | 9.0% | 3.05M | SEC |
| 8 | Feb 14, 2020 | Armistice Capital, LLC | 13G/A | 12.7% | 4.30M | SEC |
| 9 | Feb 13, 2020 | State Street Corp | 13G | 8.0% | — | SEC |
| 10 | Feb 12, 2020 | Vanguard Group Inc | 13G/A | 8.3% | 2.83M | SEC |
3 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Amag Pharmaceuticals Inc.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Huntington National Bank | 1 | $14 |