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 2023
Institutional positions in Phathom Pharmaceuticals, Inc. as of Mar 31, 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
- 84
- −1 vs. Q4 2022
- Shares held
- 30.8M
- +4.25M (+16.0%) vs. Q4 2022
- Total value
- $219.7M
- −$78.0M (−26.2%) vs. Q4 2022
- New holders
- 17
- 32 more added
- Sold out
- 18
- 18 more reduced
2 institutions that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2022: 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 2023
Shares, value and share of portfolio for each institution holding Phathom Pharmaceuticals, Inc.; share changes are against Q4 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Frazier Life Sciences Management, L.P. | 8,407,152 | $60.0M | 4.35% | 00.0% | Unchanged |
| Carlyle Group Inc. | 2,935,106 | $20.9M | 0.62% | +2,935,106 | New |
| Medicxi Ventures Management (Jersey) Ltd | 2,484,274 | $17.7M | 7.60% | 00.0% | Unchanged |
| Invesco Ltd. | 2,181,672 | $15.6M | 0.00% | −25,977−1.2% | Reduced |
| Avidity Partners Management LP | 2,048,600 | $14.6M | 0.49% | +148,600+7.8% | Added |
| Ensign Peak Advisors, Inc | 1,761,191 | $12.6M | 0.03% | 00.0% | Unchanged |
| BlackRock Inc. | 1,632,910 | $11.7M | 0.00% | −61,521−3.6% | Reduced |
| 683 Capital Management, LLC | 1,325,500 | $9.46M | 0.85% | −24,500−1.8% | Reduced |
| Vanguard Group Inc | 1,177,497 | $8.41M | 0.00% | +100,892+9.4% | Added |
| Newtyn Management, LLC | 682,027 | $4.87M | 0.96% | +197,953+40.9% | Added |
| GW&K Investment Management, LLC | 598,848 | $4.28M | 0.04% | +4,691+0.8% | Added |
| Gilder Gagnon Howe & Co LLC | 553,829 | $3.95M | 0.07% | +2,002+0.4% | Added |
| Opaleye Management Inc. | 496,000 | $3.54M | 1.06% | +78,500+18.8% | Added |
| State Street Corp | 463,743 | $3.31M | 0.00% | +12,394+2.7% | Added |
| Geode Capital Management, LLC | 448,611 | $3.20M | 0.00% | +13,567+3.1% | Added |
| StepStone Group LP | 422,085 | $3.01M | 0.56% | 00.0% | Unchanged |
| Bank of America Corp | 253,485 | $1.81M | 0.00% | +188,023+287.2% | Added |
| Simplify Asset Management Inc. | 237,935 | $1.70M | 0.30% | +237,935 | New |
| Northern Trust Corp | 212,901 | $1.52M | 0.00% | +1,852+0.9% | Added |
| MPM Oncology Impact Management LP | 212,615 | $1.52M | 0.39% | +16,673+8.5% | Added |
| Silverarc Capital Management, LLC | 200,000 | $1.43M | 0.64% | +200,000 | New |
| Citadel Advisors LLC | 188,484 | $1.35M | 0.00% | +186,731+10,652.1% | Added |
| Charles Schwab Investment Management Inc | 171,607 | $1.23M | 0.00% | −1,647−1.0% | Reduced |
| Susquehanna International Group, LLP | 146,416 | $1.05M | 0.00% | +119,849+451.1% | Added |
| JPMorgan Chase & Co | 133,587 | $954.0K | 0.00% | +4,438+3.4% | Added |
| Nuveen Asset Management, LLC | 108,284 | $773.0K | 0.00% | +357+0.3% | Added |
| UBS Oconnor LLC | 100,093 | $714.7K | 0.02% | +100,093 | New |
| State of Wisconsin Investment Board | 95,167 | $679.5K | 0.00% | −2,612−2.7% | Reduced |
| Morgan Stanley | 93,698 | $669.0K | 0.00% | +24,510+35.4% | Added |
| Atom Investors LP | 86,607 | $618.4K | 0.34% | +86,607 | New |
| Bank of New York Mellon Corp | 77,337 | $552.2K | 0.00% | −2,598−3.3% | Reduced |
| Penn Mutual Asset Management, LLC | 62,802 | $448.4K | 0.43% | 00.0% | Unchanged |
| Candriam Luxembourg S.C.A. | 63,778 | $419.1K | 0.00% | −19,579−23.5% | Reduced |
| Hennion & Walsh Asset Management, Inc. | 58,042 | $414.0K | 0.03% | −1,364−2.3% | Reduced |
| Millennium Management LLC | 57,863 | $413.0K | 0.00% | +57,863 | New |
| Goldman Sachs Group Inc | 48,681 | $347.6K | 0.00% | −25,331−34.2% | Reduced |
| Swiss National Bank | 40,400 | $288.5K | 0.00% | −1,100−2.7% | Reduced |
| Marshall Wace, LLP | 37,096 | $264.9K | 0.00% | +37,096 | New |
| Rhumbline Advisers | 32,761 | $234.0K | 0.00% | +2,029+6.6% | Added |
| Occidental Asset Management, LLC | 29,672 | $211.9K | 0.05% | 00.0% | Unchanged |
| Simplex Trading, LLC | 29,411 | $209.0K | 0.01% | +29,411 | New |
| Two Sigma Investments, LP | 29,100 | $207.8K | 0.00% | +29,100 | New |
| Alliancebernstein L.P. | 27,300 | $194.9K | 0.00% | +4,800+21.3% | Added |
| California State Teachers Retirement System | 25,530 | $182.3K | 0.00% | +446+1.8% | Added |
| Inspirion Wealth Advisors, LLC | 23,249 | $166.0K | 0.03% | −20−0.1% | Reduced |
| Gsa Capital Partners LLP | 20,232 | $144.0K | 0.01% | +1,715+9.3% | Added |
| Creative Planning | 20,000 | $142.8K | 0.00% | +20,000 | New |
| Allworth Financial LP | 19,580 | $139.8K | 0.00% | +2,388+13.9% | Added |
| Credit Suisse AG | 16,661 | $119.0K | 0.00% | +1,216+7.9% | Added |
| Deutsche Bank AG | 16,199 | $115.7K | 0.00% | +5,356+49.4% | Added |
| Price T Rowe Associates Inc | 15,068 | $108.0K | 0.00% | +118+0.8% | Added |
| New York State Common Retirement Fund | 14,603 | $104.3K | 0.00% | 00.0% | Unchanged |
| Belvedere Trading LLC | 13,525 | $96.6K | 0.04% | +13,525 | New |
| Jane Street Group, LLC | 13,345 | $95.3K | 0.00% | −7,338−35.5% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 13,234 | $94.5K | 0.00% | −26−0.2% | Reduced |
| Barclays PLC | 12,526 | $89.4K | 0.00% | +3,647+41.1% | Added |
| Stratos Wealth Advisors, LLC | 12,500 | $89.3K | 0.01% | +12,500 | New |
| MetLife Investment Management | 12,302 | $87.8K | 0.00% | 00.0% | Unchanged |
| American International Group, Inc. | 11,840 | $84.5K | 0.00% | +236+2.0% | Added |
| Point72 Asset Management, L.P. | 11,505 | $82.1K | 0.00% | +11,505 | New |
| SG Americas Securities, LLC | 11,328 | $81.0K | 0.00% | +11,328 | New |
| State Board of Administration of Florida Retirement System | 11,228 | $80.2K | 0.00% | 00.0% | Unchanged |
| Staley Capital Advisers Inc | 10,000 | $71.0K | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 4,726 | $33.7K | 0.00% | +4,726 | New |
| Legal & General Group Plc | 3,918 | $28.0K | 0.00% | −3,503−47.2% | Reduced |
| Amalgamated Bank | 3,234 | $23.0K | 0.00% | −339−9.5% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 2,141 | $15.3K | 0.00% | +2,141 | New |
| Royal Bank of Canada | 1,885 | $13.0K | 0.00% | −2,254−54.5% | Reduced |
| Tower Research Capital LLC (TRC) | 1,705 | $12.0K | 0.00% | +1,219+250.8% | Added |
| Cubist Systematic Strategies, LLC | 1,649 | $11.8K | 0.00% | +1,649 | New |
| Ameritas Investment Partners, Inc. | 1,588 | $11.3K | 0.00% | 00.0% | Unchanged |
| Metropolitan Life Insurance Co | 1,373 | $9.80K | 0.00% | −29−2.1% | Reduced |
| Cutler Group LP | 1,100 | $7.00K | 0.00% | +700+175.0% | Added |
| Huntington National Bank | 965 | $6.89K | 0.00% | +40+4.3% | Added |
| Citigroup Inc | 946 | $6.75K | 0.00% | −186−16.4% | Reduced |
| Great West Life Assurance Co | 850 | $6.00K | 0.00% | 00.0% | Unchanged |
| FMR LLC | 768 | $5.48K | 0.00% | +73+10.5% | Added |
| China Universal Asset Management Co., Ltd. | 564 | $4.03K | 0.00% | +141+33.3% | Added |
| Tradition Wealth Management, LLC | 400 | $3.00K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 151 | $1.08K | 0.00% | +1+0.7% | Added |
| Daiwa Securities Group Inc. | 167 | $1.00K | 0.00% | 00.0% | Unchanged |
| Crewe Advisors LLC | 107 | $764 | 0.00% | 00.0% | Unchanged |
| Newbridge Financial Services Group, Inc. | 35 | $250 | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 13 | $0 | 0.00% | 00.0% | Unchanged |
| Rhenman & Partners Asset Management AB | 0 | $0 | 0.00% | −235,210−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −145,870−100.0% | Sold out |
| SEI Investments Co | 0 | $0 | 0.00% | −58,585−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −14,800−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −12,296−100.0% | Sold out |
| AQR Capital Management LLC | 0 | $0 | 0.00% | −10,046−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −2,927−100.0% | Sold out |
| U.S. Capital Wealth Advisors, LLC | 0 | $0 | 0.00% | −1,000−100.0% | Sold out |
| UBS Group AG | 0 | $0 | 0.00% | −795−100.0% | Sold out |
| US Bancorp | 0 | $0 | 0.00% | −349−100.0% | Sold out |
| Quadrant Capital Group LLC | 0 | $0 | 0.00% | −212−100.0% | Sold out |
| Massmutual Trust Co FSB | 0 | $0 | 0.00% | −160−100.0% | Sold out |
| Lindbrook Capital, LLC | 0 | $0 | 0.00% | −159−100.0% | Sold out |
| Whittier Trust Co | 0 | $0 | 0.00% | −33−100.0% | Sold out |
| Parallel Advisors, LLC | 0 | $0 | 0.00% | −29−100.0% | Sold out |
| Signaturefd, LLC | 0 | $0 | 0.00% | −24−100.0% | Sold out |