Institutional Ownership
Apellis Pharmaceuticals Inc
CUSIP 03753U106COMAPLSUSDQ1 2026
13D / 13G Filings
45
Schedule 13D/13G on record
Beneficial Filers
15
Distinct reporting persons
Largest Stake
15.8%
Max % of class reported
Institutional Holders
313
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
45 filings · latest Feb 17, 2026
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Feb 17, 2026 | Rtw Investments, LP | 13G | 6.1% | 7.67M | SEC |
| 2 | Feb 6, 2026 | Blackrock, Inc. | 13G | 10.5% | 13.23M | SEC |
| 3 | Nov 14, 2025 | Ecor1 Capital, LLC | 13G/A | 2.7% | — | SEC |
| 4 | Nov 7, 2025 | Wellington Management Group LLP | 13G/A | 10.9% | 13.75M | SEC |
| 5 | Aug 12, 2025 | Wellington Management Group LLP | 13G/A | 7.2% | 9.01M | SEC |
| 6 | May 16, 2025 | Deep Track Capital, LP | 13G | 5.6% | 7.00M | SEC |
| 7 | Apr 25, 2025 | Blackrock, Inc. | 13G/A | 4.5% | 5.60M | SEC |
| 8 | Feb 10, 2025 | Wellington Management Group LLP | 13G/A | 9.5% | 11.83M | SEC |
| 9 | Feb 3, 2025 | Morgan Stanley | 13G | 7.7% | 9.59M | SEC |
| 10 | Nov 22, 2024 | Deep Track Capital, LP | 13G/A | 4.8% | 6.00M | SEC |
35 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Apellis Pharmaceuticals Inc.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Blackrock, Inc. | 13.54M | $544.59M |
| 2 | Avoro Capital Advisors LLC | 12.22M | $491.70M |
| 3 | Morgan Stanley | 10.04M | $404.01M |
| 4 | State Street Corp | 6.84M | $275.37M |
| 5 | Ubs Group AG | 6.21M | $249.69M |
| 6 | Pentwater Capital Management LP | 5.25M | $211.21M |
| 7 | Deep Track Capital, LP | 4.53M | $182.34M |
| 8 | Point72 Asset Management, L.P. | 4.18M | $168.32M |
| 9 | Rtw Investments, LP | 3.69M | $148.25M |
| 10 | Hbk Investments L P | 3.55M | $142.82M |