Phathom Pharmaceuticals, Inc. (PHAT) ownership: Top institutional holder: Frazier Life Sciences Management, L.P. ($138.50M). Insider activity: Net Seller (3 buys, 17 sells). SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| Frazier Life Sciences Management, L.P. | 12466489.00 | $138.50M | 2026-03-31 |
| Medicxi Ventures Management (Jersey) Ltd | 7464572.00 | $82.93M | 2026-03-31 |
| VANGUARD GROUP INC | 3177211.00 | $52.71M | 2025-12-31 |
| Invesco Ltd. | 4322060.00 | $48.02M | 2026-03-31 |
| BlackRock, Inc. | 4061996.00 | $45.13M | 2026-03-31 |
| MILLENNIUM MANAGEMENT LLC | 4022909.00 | $44.69M | 2026-03-31 |
| Carlyle Group Inc. | 3496808.00 | $38.85M | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 2583636.00 | $28.70M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-05-22 | |
| Sell | null | 2026-05-22 | |
| Sell | null | 2026-05-20 | |
| Sell | null | 2026-05-20 | |
| Sell | null | 2026-05-19 | |
| Sell | null | 2026-05-19 | |
| Sell | null | 2026-05-19 | |
| Sell | null | 2026-05-19 |
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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.