Phathom Pharmaceuticals, Inc.
PHAT- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001783183
No open-market purchases or sales by Phathom Pharmaceuticals, Inc. insiders were filed in the last 90 days; 161 institutions reported holding it in 13F filings for Q2 2026, worth $782.1M in total; no superinvestor holds it.
13F holders, Q1 2024
Institutional positions in Phathom Pharmaceuticals, Inc. as of Mar 31, 2024. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 114
- −3 vs. Q4 2023
- Shares held
- 55.4M
- +1.29M (+2.4%) vs. Q4 2023
- Total value
- $588.2M
- +$84.9M (+16.9%) vs. Q4 2023
- New holders
- 13
- 41 more added
- Sold out
- 16
- 34 more reduced
Compare with Q4 2023: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting PHAT on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 161 | $782.1M |
| Q1 2026 | 174 | $765.5M |
| Q4 2025 | 173 | $1.03B |
| Q3 2025 | 133 | $733.6M |
| Q2 2025 | 117 | $550.5M |
| Q1 2025 | 137 | $401.4M |
| Q4 2024 | 144 | $541.2M |
| Q3 2024 | 133 | $1.31B |
| Q2 2024 | 114 | $598.6M |
| Q1 2024 | 114 | $588.2M |
| Q4 2023 | 117 | $503.3M |
| Q3 2023 | 110 | $452.7M |
| Q2 2023 | 103 | $612.6M |
| Q1 2023 | 84 | $219.7M |
| Q4 2022 | 87 | $316.6M |
| Q3 2022 | 94 | $334.3M |
| Q2 2022 | 94 | $230.0M |
| Q1 2022 | 82 | $349.1M |
| Q4 2021 | 83 | $562.0M |
| Q3 2021 | 84 | $819.8M |
| Q2 2021 | 79 | $843.6M |
| Q1 2021 | 84 | $919.2M |
Institutions, Q1 2024
Shares, value and share of portfolio for each institution holding Phathom Pharmaceuticals, Inc.; share changes are against Q4 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Propel Bio Management, LLC | 869,927 | $9.24M | 5.38% | +426,880+96.4% | Added |
| Gilder Gagnon Howe & Co LLC | 1,017,617 | $10.8M | 0.14% | −437,515−30.1% | Reduced |
| Jennison Associates LLC | 1,647,697 | $17.5M | 0.01% | +1,647,697 | New |
| 683 Capital Management, LLC | 1,650,000 | $17.5M | 1.79% | +370,000+28.9% | Added |
| Avidity Partners Management LP | 1,735,000 | $18.4M | 0.65% | +13,420+0.8% | Added |
| NEA Management Company, LLC | 1,960,169 | $20.8M | 1.29% | 00.0% | Unchanged |
| Vanguard Group Inc | 1,979,113 | $21.0M | 0.00% | +22,684+1.2% | Added |
| Ensign Peak Advisors, Inc | 2,280,000 | $24.2M | 0.04% | 00.0% | Unchanged |
| BlackRock Inc. | 2,745,380 | $29.2M | 0.00% | +66,489+2.5% | Added |
| Takeda Pharmaceutical Co Ltd | 3,153,217 | $33.5M | 11.59% | −4,306,069−57.7% | Reduced |
| Invesco Ltd. | 3,159,789 | $33.6M | 0.01% | −7,864−0.2% | Reduced |
| Carlyle Group Inc. | 3,496,808 | $37.1M | 2.34% | 00.0% | Unchanged |
| Medicxi Ventures Management (Jersey) Ltd | 7,464,572 | $79.3M | 17.65% | +3,703,703+98.5% | Added |
| Frazier Life Sciences Management, L.P. | 10,109,279 | $107.4M | 4.53% | 00.0% | Unchanged |
| Walleye Capital LLC | 0 | $0 | 0.00% | −202,154−100.0% | Sold out |
| EcoR1 Capital, LLC | 0 | $0 | 0.00% | −198,480−100.0% | Sold out |
| Ameriprise Financial Inc | 0 | $0 | 0.00% | −82,244−100.0% | Sold out |
| MPM Oncology Impact Management LP | 0 | $0 | 0.00% | −70,000−100.0% | Sold out |
| Renaissance Technologies LLC | 0 | $0 | 0.00% | −65,600−100.0% | Sold out |
| Russell Investments Group, Ltd. | 0 | $0 | 0.00% | −39,292−100.0% | Sold out |
| Public Employees Retirement System of Ohio | 0 | $0 | 0.00% | −38,569−100.0% | Sold out |
| Graham Capital Management, L.P. | 0 | $0 | 0.00% | −20,619−100.0% | Sold out |
| AQR Capital Management LLC | 0 | $0 | 0.00% | −18,427−100.0% | Sold out |
| Tocqueville Asset Management L.P. | 0 | $0 | 0.00% | −18,100−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −15,000−100.0% | Sold out |
| Landscape Capital Management, L.L.C. | 0 | $0 | 0.00% | −14,940−100.0% | Sold out |
| Algert Global LLC | 0 | $0 | 0.00% | −14,920−100.0% | Sold out |
| Quest Partners LLC | 0 | $0 | 0.00% | −2,205−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −1,545−100.0% | Sold out |
| Tradition Wealth Management, LLC | 0 | $0 | 0.00% | −500−100.0% | Sold out |