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, Q4 2025
Institutional positions in Phathom Pharmaceuticals, Inc. as of Dec 31, 2025. 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
- 173
- +40 vs. Q3 2025
- Shares held
- 62.0M
- −370.1K (−0.6%) vs. Q3 2025
- Total value
- $1.03B
- +$291.9M (+39.8%) vs. Q3 2025
- New holders
- 50
- 49 more added
- Sold out
- 10
- 50 more reduced
Compare with Q3 2025: 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, Q4 2025
Shares, value and share of portfolio for each institution holding Phathom Pharmaceuticals, Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Mirae Asset Global ETFs Holdings Ltd. | 18,460 | $306.3K | 0.00% | −942−4.9% | Reduced |
| Jump Financial, LLC | 17,408 | $288.8K | 0.00% | +17,408 | New |
| Bridgefront Capital, LLC | 16,981 | $281.7K | 0.07% | +16,981 | New |
| SG Americas Securities, LLC | 16,497 | $274.0K | 0.00% | +16,497 | New |
| Fiduciary Trust Co | 16,040 | $266.1K | 0.00% | −75−0.5% | Reduced |
| Profund Advisors LLC | 15,562 | $258.2K | 0.01% | +3,392+27.9% | Added |
| Virtu Financial LLC | 15,540 | $258.0K | 0.01% | +15,540 | New |
| State of Wisconsin Investment Board | 15,285 | $253.6K | 0.00% | +15,285 | New |
| Baader Bank INC | 15,000 | $248.8K | 0.02% | +15,000 | New |
| Pathstone Holdings, LLC | 14,900 | $247.2K | 0.00% | +4,578+44.4% | Added |
| Private Advisor Group, LLC | 14,580 | $241.9K | 0.00% | 00.0% | Unchanged |
| KLP Kapitalforvaltning AS | 14,000 | $232.3K | 0.00% | +14,000 | New |
| Rafferty Asset Management, LLC | 13,855 | $229.9K | 0.00% | +13,855 | New |
| Persistent Asset Partners Ltd | 12,916 | $214.3K | 0.10% | +12,916 | New |
| Scientech Research LLC | 12,879 | $213.7K | 0.13% | +12,879 | New |
| Graham Capital Management, L.P. | 12,867 | $213.5K | 0.01% | +12,867 | New |
| Manufacturers Life Insurance Company, The | 12,438 | $206.3K | 0.00% | −2,174−14.9% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 11,925 | $197.8K | 0.00% | 00.0% | Unchanged |
| Arizona State Retirement System | 11,867 | $196.9K | 0.00% | +11,867 | New |
| China Universal Asset Management Co., Ltd. | 11,592 | $192.3K | 0.01% | −843−6.8% | Reduced |
| Susquehanna Fundamental Investments, LLC | 11,473 | $190.3K | 0.01% | 00.0% | Unchanged |
| Entropy Technologies, LP | 11,000 | $182.5K | 0.01% | +11,000 | New |
| Axq Capital, LP | 10,540 | $174.9K | 0.04% | −9,322−46.9% | Reduced |
| Allworth Financial LP | 10,450 | $173.4K | 0.00% | −9,998−48.9% | Reduced |
| 9823 Capital, L.P. | 10,429 | $173.0K | 0.12% | +10,429 | New |
| ProShare Advisors LLC | 10,377 | $172.2K | 0.00% | +10,377 | New |
| BNP Paribas Arbitrage, SA | 9,790 | $162.4K | 0.00% | +962+10.9% | Added |
| FMR LLC | 7,181 | $119.1K | 0.00% | +182+2.6% | Added |
| Great West Life Assurance Co | 6,818 | $113.0K | 0.00% | +6,818 | New |
| Russell Investments Group, Ltd. | 6,644 | $110.2K | 0.00% | +282+4.4% | Added |
| Advisor Group Holdings, Inc. | 6,450 | $107.0K | 0.00% | −4,502−41.1% | Reduced |
| Canada Pension Plan Investment Board | 4,600 | $76.3K | 0.00% | +500+12.2% | Added |
| Ameritas Investment Partners, Inc. | 3,527 | $58.5K | 0.00% | 00.0% | Unchanged |
| Mirae Asset Global Investments Co., Ltd. | 3,457 | $57.4K | 0.00% | +714+26.0% | Added |
| Jones Financial Companies LLLP | 2,871 | $47.6K | 0.00% | +348+13.8% | Added |
| RiverPark Advisors, LLC | 2,807 | $46.6K | 0.01% | +2,807 | New |
| Kestra Advisory Services, LLC | 2,275 | $37.7K | 0.00% | +2,275 | New |
| CWM, LLC | 2,008 | $33.0K | 0.00% | +40+2.0% | Added |
| Huntington National Bank | 1,986 | $32.9K | 0.00% | −36−1.8% | Reduced |
| Sterling Capital Management LLC | 1,749 | $29.0K | 0.00% | −410−19.0% | Reduced |
| Simplex Trading, LLC | 1,599 | $26.5K | 0.00% | −18,361−92.0% | Reduced |
| The PNC Financial Services Group, Inc. | 1,421 | $23.6K | 0.00% | −127−8.2% | Reduced |
| GF Fund Management Co. Ltd. | 1,397 | $23.2K | 0.00% | −129−8.5% | Reduced |
| Amalgamated Bank | 1,248 | $21.0K | 0.00% | −106−7.8% | Reduced |
| Tower Research Capital LLC (TRC) | 1,097 | $18.2K | 0.00% | −465−29.8% | Reduced |
| Quadrant Capital Group LLC | 1,073 | $17.8K | 0.00% | 00.0% | Unchanged |
| Strategic Wealth Advisors LLC | 1,000 | $16.0K | 0.01% | +1,000 | New |
| C M Bidwell & Associates Ltd | 853 | $14.2K | 0.01% | −269−24.0% | Reduced |
| Larson Financial Group LLC | 647 | $10.7K | 0.00% | 00.0% | Unchanged |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 604 | $10.0K | 0.00% | +604 | New |
| Nisa Investment Advisors, LLC | 568 | $9.42K | 0.00% | +380+202.1% | Added |
| Federated Hermes, Inc. | 549 | $9.11K | 0.00% | +549 | New |
| Quantbot Technologies LP | 535 | $8.88K | 0.00% | −9,262−94.5% | Reduced |
| MCF Advisors LLC | 446 | $7.40K | 0.00% | +446 | New |
| Farther Finance Advisors, LLC | 342 | $5.67K | 0.00% | 00.0% | Unchanged |
| Massmutual Trust Co FSB | 320 | $5.31K | 0.00% | +33+11.5% | Added |
| GAMMA Investing LLC | 303 | $5.03K | 0.00% | −57−15.8% | Reduced |
| US Bancorp | 277 | $4.59K | 0.00% | −7,000−96.2% | Reduced |
| Daiwa Securities Group Inc. | 260 | $4.00K | 0.00% | 00.0% | Unchanged |
| Fortitude Family Office, LLC | 208 | $3.45K | 0.00% | 00.0% | Unchanged |
| Optiver Holding B.V. | 198 | $3.29K | 0.00% | −386−66.1% | Reduced |
| Rockefeller Capital Management L.P. | 155 | $2.57K | 0.00% | +155 | New |
| Parallel Advisors, LLC | 100 | $1.66K | 0.00% | −86−46.2% | Reduced |
| True Wealth Design, LLC | 95 | $1.58K | 0.00% | +7+8.0% | Added |
| Signaturefd, LLC | 40 | $664 | 0.00% | +40 | New |
| Caitong International Asset Management Co., Ltd | 28 | $465 | 0.00% | +28 | New |
| Rachor Investment Advisory Services, LLC | 25 | $415 | 0.00% | +25 | New |
| ZRC Wealth Management, LLC | 20 | $332 | 0.00% | 00.0% | Unchanged |
| SRS Capital Advisors, Inc. | 6 | $100 | 0.00% | −53−89.8% | Reduced |
| Essential Partners LLC | 6 | $100 | 0.00% | +6 | New |
| EverSource Wealth Advisors, LLC | 5 | $83 | 0.00% | −66−93.0% | Reduced |
| IFP Advisors, Inc | 1 | $17 | 0.00% | +1 | New |
| Covestor Ltd | 16 | $0 | 0.00% | 00.0% | Unchanged |
| AIGH Capital Management LLC | 0 | $0 | 0.00% | −429,000−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −290,467−100.0% | Sold out |
| PharVision Advisers, LLC | 0 | $0 | 0.00% | −30,968−100.0% | Sold out |
| Quadrature Capital Ltd | 0 | $0 | 0.00% | −30,272−100.0% | Sold out |
| Omers Administration Corp | 0 | $0 | 0.00% | −16,500−100.0% | Sold out |
| Kestra Private Wealth Services, LLC | 0 | $0 | 0.00% | −15,500−100.0% | Sold out |
| Quarry LP | 0 | $0 | 0.00% | −7,007−100.0% | Sold out |
| Leonteq Securities AG | 0 | $0 | 0.00% | −4,800−100.0% | Sold out |
| Bear Mountain Capital, Inc. | 0 | $0 | 0.00% | −1,000−100.0% | Sold out |
| SBI Securities Co., Ltd. | 0 | $0 | 0.00% | −23−100.0% | Sold out |