Institutional Ownership
Protagonist Therapeutics Inc
CUSIP 74366E102COMPTGXQ1 2026
13D / 13G Filings
71
Schedule 13D/13G on record
Beneficial Filers
22
Distinct reporting persons
Largest Stake
18.2%
Max % of class reported
Institutional Holders
316
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
71 filings · latest Feb 17, 2026
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Feb 17, 2026 | Rtw Investments, LP | 13G/A | 8.1% | 5.06M | SEC |
| 2 | Feb 10, 2026 | Wellington Management Group LLP | 13G | 5.1% | 3.17M | SEC |
| 3 | Feb 6, 2026 | Farallon Capital Partners, L.P. | 13G/A | 10.0% | 6.25M | SEC |
| 4 | Jan 30, 2026 | The Vanguard Group | 13G/A | 8.7% | 5.41M | SEC |
| 5 | Nov 14, 2025 | Deep Track Capital, LP | 13G/A | 2.8% | 1.72M | SEC |
| 6 | Nov 14, 2025 | Biotechnology Value Fund L P | 13G/A | 4.1% | 2.56M | SEC |
| 7 | Oct 17, 2025 | Blackrock, Inc. | 13G/A | 13.8% | 8.58M | SEC |
| 8 | Aug 11, 2025 | State Street Corporation | 13G | 5.2% | 3.21M | SEC |
| 9 | Jun 16, 2025 | Biotechnology Value Fund L P | 13G | 5.2% | 3.21M | SEC |
| 10 | May 13, 2025 | State Street Corporation | 13G | 4.4% | 2.71M | SEC |
61 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Protagonist Therapeutics Inc.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Blackrock, Inc. | 9.78M | $1.03B |
| 2 | Farallon Capital Management LLC | 6.35M | $669.17M |
| 3 | Ubs Group AG | 5.18M | $545.74M |
| 4 | Rtw Investments, LP | 5.06M | $533.22M |
| 5 | Wellington Management Group LLP | 3.60M | $379.40M |
| 6 | Vanguard Portfolio Management LLC | 3.48M | $366.92M |
| 7 | State Street Corp | 3.12M | $328.51M |
| 8 | Janus Henderson Group PLC | 2.89M | $304.87M |
| 9 | Vanguard Capital Management LLC | 2.81M | $295.74M |
| 10 | Johnson & Johnson | 2.45M | $258.14M |