Protagonist Therapeutics, Inc. (PTGX) ownership: insiders 2% · institutions 117% · index and ETF funds 8% (13F 2026-03-31). Insider activity, 90 days: Routine (5 sales, 0 open-market buys). SEC EDGAR first-party data.
| Holder | Shares | Market Value | % Outstanding | Reported |
|---|---|---|---|---|
| BlackRock | 9779369.00 | $1.03B | 15.2% | 2026-03-31 |
| Vanguard | 6788690.00 | $715.53M | 10.6% | 2026-03-31 |
| Farallon Capital Management LLC | 6348906.00 | $669.17M | 9.9% | 2026-03-31 |
| UBS | 5285233.00 | $557.06M | 8.2% | 2026-03-31 |
| RTW Investments, LP | 5059053.00 | $533.22M | 7.9% | 2026-03-31 |
| Wellington Management | 3599644.00 | $379.40M | 5.6% | 2026-03-31 |
| State Street | 3116749.00 | $328.51M | 4.8% | 2026-03-31 |
| Janus Henderson | 2891527.00 | $304.87M | 4.5% | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-08-10 | |
| Sell | null | 2026-08-10 | |
| Sell | null | 2026-08-10 | |
| Sell | null | 2026-08-10 | |
| Sell | null | 2026-08-10 | |
| Sell | null | 2026-08-10 | |
| Sell | null | 2026-06-23 | |
| Sell | null | 2026-06-23 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.