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 2025
Institutional positions in Phathom Pharmaceuticals, Inc. as of Sep 30, 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
- 133
- +16 vs. Q2 2025
- Shares held
- 62.3M
- +4.93M (+8.6%) vs. Q2 2025
- Total value
- $733.6M
- +$183.1M (+33.3%) vs. Q2 2025
- New holders
- 27
- 45 more added
- Sold out
- 11
- 28 more reduced
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding Phathom Pharmaceuticals, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Frazier Life Sciences Management, L.P. | 12,466,489 | $146.7M | 4.40% | 00.0% | Unchanged |
| Medicxi Ventures Management (Jersey) Ltd | 7,464,572 | $87.9M | 11.80% | 00.0% | Unchanged |
| Millennium Management LLC | 5,081,451 | $59.8M | 0.05% | +2,830,954+125.8% | Added |
| Invesco Ltd. | 3,864,971 | $45.5M | 0.01% | −275,101−6.6% | Reduced |
| Carlyle Group Inc. | 3,496,808 | $41.1M | 0.95% | 00.0% | Unchanged |
| BlackRock, Inc. | 3,402,324 | $40.0M | 0.00% | +86,976+2.6% | Added |
| Vanguard Group Inc | 3,215,572 | $37.8M | 0.00% | +428,261+15.4% | Added |
| Ensign Peak Advisors, Inc | 2,503,344 | $29.5M | 0.05% | −16,628−0.7% | Reduced |
| NEA Management Company, LLC | 1,960,169 | $23.1M | 1.27% | 00.0% | Unchanged |
| 683 Capital Management, LLC | 1,820,380 | $21.4M | 1.95% | −284,620−13.5% | Reduced |
| Wasatch Advisors Inc | 1,537,218 | $18.1M | 0.10% | +75,323+5.2% | Added |
| Catalys Pacific, LLC | 1,167,114 | $13.7M | 3.91% | 00.0% | Unchanged |
| GW&K Investment Management, LLC | 1,144,330 | $13.5M | 0.12% | +95,858+9.1% | Added |
| Catalio Capital Management, LP | 1,128,521 | $13.3M | 2.46% | +456,231+67.9% | Added |
| Geode Capital Management, LLC | 1,088,910 | $12.8M | 0.00% | +18,983+1.8% | Added |
| State Street Corp | 1,053,591 | $12.4M | 0.00% | +204,167+24.0% | Added |
| Moore Capital Management, LP | 600,000 | $7.06M | 0.14% | 00.0% | Unchanged |
| Ameriprise Financial Inc | 554,590 | $6.53M | 0.00% | +373,739+206.7% | Added |
| Propel Bio Management, LLC | 552,927 | $6.51M | 6.51% | −370,000−40.1% | Reduced |
| Citadel Advisors LLC | 508,720 | $5.99M | 0.00% | +508,720 | New |
| AIGH Capital Management LLC | 429,000 | $5.05M | 1.77% | +429,000 | New |
| StepStone Group LP | 422,085 | $4.97M | 2.34% | 00.0% | Unchanged |
| SummitTX Capital, L.P. | 385,968 | $4.54M | 0.19% | +385,968 | New |
| Charles Schwab Investment Management Inc | 365,904 | $4.31M | 0.00% | +5,744+1.6% | Added |
| Northern Trust Corp | 357,578 | $4.21M | 0.00% | −1,746−0.5% | Reduced |
| UBS Group AG | 338,360 | $3.98M | 0.00% | −81,113−19.3% | Reduced |
| Simplify Asset Management Inc. | 321,935 | $3.79M | 0.08% | −200,000−38.3% | Reduced |
| Avidity Partners Management LP | 306,000 | $3.60M | 0.82% | −758,500−71.3% | Reduced |
| Balyasny Asset Management LLC | 295,161 | $3.47M | 0.01% | +281,979+2,139.1% | Added |
| Walleye Capital LLC | 290,467 | $3.42M | 0.03% | +290,467 | New |
| Susquehanna Portfolio Strategies, LLC | 267,962 | $3.15M | 0.05% | 00.0% | Unchanged |
| Morgan Stanley | 255,573 | $3.01M | 0.00% | +100,645+65.0% | Added |
| Bank of America Corp | 249,094 | $2.93M | 0.00% | +153,014+159.3% | Added |
| GWM Advisors LLC | 201,523 | $2.23M | 0.01% | +201,523 | New |
| Woodline Partners LP | 187,291 | $2.20M | 0.01% | 00.0% | Unchanged |
| Royal Bank of Canada | 162,443 | $1.91M | 0.00% | +4,502+2.9% | Added |
| Susquehanna International Group, LLP | 154,277 | $1.82M | 0.00% | +20,069+15.0% | Added |
| Goldman Sachs Group Inc | 152,032 | $1.79M | 0.00% | −40,494−21.0% | Reduced |
| Wellington Management Group LLP | 146,459 | $1.72M | 0.00% | +146,459 | New |
| JPMorgan Chase & Co | 136,948 | $1.61M | 0.00% | −1,568−1.1% | Reduced |
| Barclays PLC | 128,356 | $1.51M | 0.00% | +46,186+56.2% | Added |
| Bank of New York Mellon Corp | 127,382 | $1.50M | 0.00% | +6,216+5.1% | Added |
| Nuveen, LLC | 110,110 | $1.30M | 0.00% | 00.0% | Unchanged |
| Jane Street Group, LLC | 107,262 | $1.26M | 0.00% | +107,262 | New |
| Gilder Gagnon Howe & Co LLC | 88,542 | $1.04M | 0.01% | +57,184+182.4% | Added |
| Birchview Capital, LP | 85,000 | $1.00M | 0.76% | +60,000+240.0% | Added |
| Trexquant Investment LP | 78,183 | $920.2K | 0.01% | +78,183 | New |
| Creative Planning | 78,058 | $918.7K | 0.00% | +20,794+36.3% | Added |
| ExodusPoint Capital Management, LP | 71,275 | $838.9K | 0.01% | +56,129+370.6% | Added |
| Gsa Capital Partners LLP | 70,258 | $827.0K | 0.07% | +70,258 | New |
| Penn Mutual Asset Management, LLC | 62,802 | $739.2K | 1.44% | 00.0% | Unchanged |
| Rhumbline Advisers | 61,713 | $726.4K | 0.00% | −2,844−4.4% | Reduced |
| Brevan Howard Capital Management LP | 58,097 | $683.8K | 0.01% | +30,263+108.7% | Added |
| Inspirion Wealth Advisors, LLC | 36,634 | $662.3K | 0.09% | +16,820+84.9% | Added |
| Quest Partners LLC | 54,594 | $642.6K | 0.04% | +22,388+69.5% | Added |
| XTX Topco Ltd | 54,587 | $642.5K | 0.03% | +40,257+280.9% | Added |
| Wells Fargo & Company | 53,648 | $631.4K | 0.00% | +6,970+14.9% | Added |
| AQR Capital Management LLC | 52,629 | $619.4K | 0.00% | +2,705+5.4% | Added |
| Alliancebernstein L.P. | 45,590 | $536.6K | 0.00% | −5,000−9.9% | Reduced |
| Virtus Investment Advisers, Inc. | 44,306 | $521.5K | 0.15% | 00.0% | Unchanged |
| ADAR1 Capital Management, LLC | 42,900 | $504.9K | 0.05% | −20,524−32.4% | Reduced |
| Caxton Associates LLP | 38,570 | $454.0K | 0.01% | +38,570 | New |
| Tudor Investment Corp Et Al | 34,090 | $401.2K | 0.00% | +34,090 | New |
| Price T Rowe Associates Inc | 31,919 | $376.0K | 0.00% | +1,815+6.0% | Added |
| PharVision Advisers, LLC | 30,968 | $364.5K | 0.21% | +30,968 | New |
| Commonwealth Equity Services, LLC | 30,616 | $360.0K | 0.00% | −940−3.0% | Reduced |
| Quadrature Capital Ltd | 30,272 | $356.0K | 0.00% | +30,272 | New |
| Kera Capital Partners, Inc. | 30,059 | $353.8K | 0.05% | 00.0% | Unchanged |
| Occidental Asset Management, LLC | 29,672 | $349.2K | 0.04% | 00.0% | Unchanged |
| Deutsche Bank AG | 29,572 | $348.1K | 0.00% | +3,493+13.4% | Added |
| MetLife Investment Management | 25,845 | $304.2K | 0.00% | 00.0% | Unchanged |
| Tocqueville Asset Management L.P. | 24,700 | $290.7K | 0.00% | +24,700 | New |
| Summit Financial Wealth Advisors, LLC | 22,143 | $272.1K | 0.04% | 00.0% | Unchanged |
| HRT Financial LP | 22,521 | $265.0K | 0.00% | +22,521 | New |
| Intech Investment Management LLC | 21,541 | $253.5K | 0.00% | −6,651−23.6% | Reduced |
| Allworth Financial LP | 20,448 | $240.7K | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 19,960 | $234.0K | 0.01% | +19,960 | New |
| Stifel Financial Corp | 19,867 | $233.8K | 0.00% | −600−2.9% | Reduced |
| Axq Capital, LP | 19,862 | $233.8K | 0.09% | +6,242+45.8% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 19,402 | $228.4K | 0.00% | −3,932−16.9% | Reduced |
| Omers Administration Corp | 16,500 | $194.2K | 0.00% | +16,500 | New |
| Fiduciary Trust Co | 16,115 | $189.7K | 0.00% | +5,210+47.8% | Added |
| Kestra Private Wealth Services, LLC | 15,500 | $182.4K | 0.00% | 00.0% | Unchanged |
| Manufacturers Life Insurance Company, The | 14,612 | $172.0K | 0.00% | −1,214−7.7% | Reduced |
| Private Advisor Group, LLC | 14,580 | $171.6K | 0.00% | 00.0% | Unchanged |
| Citigroup Inc | 13,635 | $160.5K | 0.00% | −503,612−97.4% | Reduced |
| Raymond James Financial Inc | 13,394 | $157.6K | 0.00% | +10,220+322.0% | Added |
| China Universal Asset Management Co., Ltd. | 12,435 | $146.4K | 0.01% | −1,587−11.3% | Reduced |
| Profund Advisors LLC | 12,170 | $143.2K | 0.00% | +12,170 | New |
| Police & Firemen's Retirement System of New Jersey | 11,925 | $140.4K | 0.00% | +3,674+44.5% | Added |
| Susquehanna Fundamental Investments, LLC | 11,473 | $135.0K | 0.01% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 10,952 | $129.9K | 0.00% | −298−2.6% | Reduced |
| New York State Common Retirement Fund | 10,770 | $126.8K | 0.00% | 00.0% | Unchanged |
| Pathstone Holdings, LLC | 10,322 | $121.5K | 0.00% | +10,322 | New |
| Quantbot Technologies LP | 9,797 | $115.3K | 0.00% | +9,797 | New |
| BNP Paribas Arbitrage, SA | 8,828 | $103.9K | 0.00% | +3,756+74.1% | Added |
| US Bancorp | 7,277 | $85.7K | 0.00% | +7,000+2,527.1% | Added |
| Quarry LP | 7,007 | $82.5K | 0.02% | +5,983+584.3% | Added |
| FMR LLC | 6,999 | $82.4K | 0.00% | +1,118+19.0% | Added |
| Russell Investments Group, Ltd. | 6,362 | $74.9K | 0.00% | +3,626+132.5% | Added |