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, Q3 2023
Institutional positions in Phathom Pharmaceuticals, Inc. as of Sep 30, 2023. 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
- 110
- +8 vs. Q2 2023
- Shares held
- 43.8M
- +981.6K (+2.3%) vs. Q2 2023
- Total value
- $452.7M
- −$159.9M (−26.1%) vs. Q2 2023
- New holders
- 15
- 48 more added
- Sold out
- 7
- 24 more reduced
1 institution that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2023
Shares, value and share of portfolio for each institution holding Phathom Pharmaceuticals, Inc.; share changes are against Q2 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| NEA Management Company, LLC | 1,276,595 | $12.2M | 0.95% | 00.0% | Unchanged |
| Gilder Gagnon Howe & Co LLC | 1,310,048 | $13.6M | 0.21% | +249,443+23.5% | Added |
| Avidity Partners Management LP | 1,617,300 | $16.8M | 0.68% | −332,400−17.0% | Reduced |
| Ensign Peak Advisors, Inc | 1,732,172 | $18.0M | 0.04% | −24,955−1.4% | Reduced |
| Vanguard Group Inc | 1,922,662 | $19.9M | 0.00% | +180,325+10.3% | Added |
| BlackRock Inc. | 2,437,742 | $25.3M | 0.00% | +435,110+21.7% | Added |
| Invesco Ltd. | 3,418,959 | $35.5M | 0.01% | +86,822+2.6% | Added |
| Carlyle Group Inc. | 3,496,808 | $36.2M | 1.57% | 00.0% | Unchanged |
| Medicxi Ventures Management (Jersey) Ltd | 3,760,869 | $39.0M | 12.45% | 00.0% | Unchanged |
| Frazier Life Sciences Management, L.P. | 10,109,279 | $104.8M | 6.97% | 00.0% | Unchanged |
| Deerfield Management Company, L.P. (Series C) | 0 | $0 | 0.00% | −656,000−100.0% | Sold out |
| Tang Capital Management LLC | 0 | $0 | 0.00% | −250,000−100.0% | Sold out |
| Silverarc Capital Management, LLC | 0 | $0 | 0.00% | −200,000−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −63,408−100.0% | Sold out |
| Atom Investors LP | 0 | $0 | 0.00% | −53,286−100.0% | Sold out |
| Ergoteles LLC | 0 | $0 | 0.00% | −18,300−100.0% | Sold out |
| Renaissance Technologies LLC | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| BerganKDV Wealth Management, LLC | – | – | – | – | Not filed |