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 |
|---|---|---|---|---|---|
| Frazier Life Sciences Management, L.P. | 10,109,279 | $104.8M | 6.97% | 00.0% | Unchanged |
| Medicxi Ventures Management (Jersey) Ltd | 3,760,869 | $39.0M | 12.45% | 00.0% | Unchanged |
| Carlyle Group Inc. | 3,496,808 | $36.2M | 1.57% | 00.0% | Unchanged |
| Invesco Ltd. | 3,418,959 | $35.5M | 0.01% | +86,822+2.6% | Added |
| BlackRock Inc. | 2,437,742 | $25.3M | 0.00% | +435,110+21.7% | Added |
| Vanguard Group Inc | 1,922,662 | $19.9M | 0.00% | +180,325+10.3% | Added |
| Ensign Peak Advisors, Inc | 1,732,172 | $18.0M | 0.04% | −24,955−1.4% | Reduced |
| Avidity Partners Management LP | 1,617,300 | $16.8M | 0.68% | −332,400−17.0% | Reduced |
| Gilder Gagnon Howe & Co LLC | 1,310,048 | $13.6M | 0.21% | +249,443+23.5% | Added |
| NEA Management Company, LLC | 1,276,595 | $12.2M | 0.95% | 00.0% | Unchanged |
| 683 Capital Management, LLC | 1,100,000 | $11.4M | 1.16% | −187,500−14.6% | Reduced |
| Kennedy Capital Management, Inc. | 1,061,745 | $11.0M | 0.27% | +12,070+1.1% | Added |
| Decheng Capital Management III (Cayman), LLC | 850,000 | $8.81M | 2.94% | 00.0% | Unchanged |
| Woodline Partners LP | 740,021 | $7.67M | 0.09% | +66,333+9.8% | Added |
| EcoR1 Capital, LLC | 700,000 | $7.26M | 0.25% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 682,570 | $7.08M | 0.00% | +192,447+39.3% | Added |
| State Street Corp | 667,596 | $6.92M | 0.00% | +137,753+26.0% | Added |
| GW&K Investment Management, LLC | 577,450 | $5.99M | 0.06% | −14,938−2.5% | Reduced |
| Newtyn Management, LLC | 500,000 | $5.18M | 1.28% | −183,648−26.9% | Reduced |
| StepStone Group LP | 422,085 | $4.38M | 1.04% | 00.0% | Unchanged |
| Ghost Tree Capital, LLC | 395,000 | $4.10M | 1.98% | +240,750+156.1% | Added |
| MPM Oncology Impact Management LP | 347,332 | $3.60M | 0.96% | +65,000+23.0% | Added |
| Nuveen Asset Management, LLC | 287,834 | $2.98M | 0.00% | +106,225+58.5% | Added |
| Jacobs Levy Equity Management, Inc | 280,932 | $2.91M | 0.02% | +210,129+296.8% | Added |
| Citadel Advisors LLC | 275,727 | $2.86M | 0.00% | +258,812+1,530.1% | Added |
| Northern Trust Corp | 268,776 | $2.79M | 0.00% | +51,590+23.8% | Added |
| Charles Schwab Investment Management Inc | 246,681 | $2.56M | 0.00% | +67,811+37.9% | Added |
| Simplify Asset Management Inc. | 237,935 | $2.47M | 0.41% | 00.0% | Unchanged |
| Altium Capital Management LP | 220,000 | $2.28M | 1.32% | +12,568+6.1% | Added |
| AlphaCentric Advisors LLC | 160,000 | $1.66M | 0.94% | +30,000+23.1% | Added |
| JPMorgan Chase & Co | 144,756 | $1.50M | 0.00% | +10,760+8.0% | Added |
| Millennium Management LLC | 139,348 | $1.45M | 0.00% | +111,407+398.7% | Added |
| Goldman Sachs Group Inc | 138,500 | $1.44M | 0.00% | −16,168−10.5% | Reduced |
| D. E. Shaw & Co., Inc. | 130,564 | $1.35M | 0.00% | +16,871+14.8% | Added |
| Gsa Capital Partners LLP | 121,892 | $1.26M | 0.11% | +67,983+126.1% | Added |
| UBS Oconnor LLC | 117,280 | $1.22M | 0.02% | −23,000−16.4% | Reduced |
| Wellington Management Group LLP | 99,810 | $1.04M | 0.00% | +1,797+1.8% | Added |
| Bank of New York Mellon Corp | 95,065 | $985.8K | 0.00% | +16,478+21.0% | Added |
| Algert Global LLC | 91,820 | $952.2K | 0.04% | +91,820 | New |
| Walleye Capital LLC | 85,372 | $885.3K | 0.01% | +85,372 | New |
| Two Sigma Investments, LP | 84,063 | $871.7K | 0.00% | +42,563+102.6% | Added |
| State of Wisconsin Investment Board | 83,756 | $868.5K | 0.00% | −2,539−2.9% | Reduced |
| Federated Hermes, Inc. | 82,148 | $851.9K | 0.00% | −81,808−49.9% | Reduced |
| Moore Capital Management, LP | 80,000 | $829.6K | 0.02% | +20,000+33.3% | Added |
| Morgan Stanley | 78,244 | $811.4K | 0.00% | +5,862+8.1% | Added |
| Jane Street Group, LLC | 70,784 | $734.0K | 0.00% | +59,584+532.0% | Added |
| Penn Mutual Asset Management, LLC | 62,802 | $651.3K | 0.61% | 00.0% | Unchanged |
| Swiss National Bank | 60,200 | $624.3K | 0.00% | −11,300−15.8% | Reduced |
| Trexquant Investment LP | 58,825 | $610.0K | 0.02% | +40,524+221.4% | Added |
| Rhumbline Advisers | 56,537 | $586.3K | 0.00% | +6,332+12.6% | Added |
| Bank of America Corp | 53,558 | $555.4K | 0.00% | −2,524−4.5% | Reduced |
| Hennion & Walsh Asset Management, Inc. | 48,987 | $508.0K | 0.03% | −9,671−16.5% | Reduced |
| Schonfeld Strategic Advisors LLC | 38,744 | $401.8K | 0.00% | +38,744 | New |
| Credit Suisse AG | 38,038 | $394.5K | 0.00% | −1,426−3.6% | Reduced |
| Alliancebernstein L.P. | 37,700 | $390.9K | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 34,002 | $352.6K | 0.00% | +1,726+5.3% | Added |
| UBS Group AG | 33,700 | $349.5K | 0.00% | +16,894+100.5% | Added |
| California State Teachers Retirement System | 30,986 | $321.3K | 0.00% | −6,085−16.4% | Reduced |
| Inspirion Wealth Advisors, LLC | 30,134 | $312.5K | 0.06% | 00.0% | Unchanged |
| Occidental Asset Management, LLC | 29,672 | $307.7K | 0.07% | 00.0% | Unchanged |
| AQR Capital Management LLC | 22,835 | $236.8K | 0.00% | +22,835 | New |
| Creative Planning | 20,475 | $212.3K | 0.00% | 00.0% | Unchanged |
| Allworth Financial LP | 19,580 | $203.0K | 0.00% | 00.0% | Unchanged |
| Squarepoint Ops LLC | 18,815 | $195.1K | 0.00% | +18,815 | New |
| ExodusPoint Capital Management, LP | 17,008 | $176.0K | 0.00% | +17,008 | New |
| MetLife Investment Management | 16,471 | $170.8K | 0.00% | +4,169+33.9% | Added |
| American International Group, Inc. | 15,409 | $159.8K | 0.00% | +3,563+30.1% | Added |
| XTX Topco Ltd | 14,847 | $154.0K | 0.03% | +14,847 | New |
| Russell Investments Group, Ltd. | 14,120 | $146.4K | 0.00% | +5,139+57.2% | Added |
| Mirae Asset Global Investments Co., Ltd. | 13,541 | $140.4K | 0.00% | +97+0.7% | Added |
| Price T Rowe Associates Inc | 13,394 | $139.0K | 0.00% | −38−0.3% | Reduced |
| Barclays PLC | 13,235 | $137.2K | 0.00% | +2,422+22.4% | Added |
| Engineers Gate Manager LP | 12,888 | $133.6K | 0.00% | +12,888 | New |
| Voya Investment Management LLC | 12,843 | $133.2K | 0.00% | +2,798+27.9% | Added |
| Deutsche Bank AG | 12,829 | $133.0K | 0.00% | +1,700+15.3% | Added |
| Stratos Wealth Advisors, LLC | 12,500 | $129.6K | 0.01% | 00.0% | Unchanged |
| Manufacturers Life Insurance Company, The | 12,250 | $127.0K | 0.00% | +1,834+17.6% | Added |
| SG Americas Securities, LLC | 12,164 | $126.0K | 0.00% | +12,164 | New |
| Principal Financial Group Inc | 11,801 | $122.4K | 0.00% | +1,259+11.9% | Added |
| Ameriprise Financial Inc | 11,402 | $118.2K | 0.00% | +11,402 | New |
| Centiva Capital, LP | 10,962 | $113.7K | 0.01% | +10,962 | New |
| Staley Capital Advisers Inc | 10,000 | $103.7K | 0.01% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 9,311 | $96.6K | 0.00% | +8,834+1,852.0% | Added |
| Public Employees Retirement System of Ohio | 8,900 | $92.0K | 0.00% | +8,900 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 8,429 | $87.4K | 0.00% | +6,641+371.4% | Added |
| Virtus ETF Advisers LLC | 7,744 | $80.3K | 0.05% | −771−9.1% | Reduced |
| Wells Fargo & Company | 7,274 | $75.4K | 0.00% | −2,324−24.2% | Reduced |
| New York State Common Retirement Fund | 5,825 | $60.4K | 0.00% | +159+2.8% | Added |
| Royal Bank of Canada | 5,716 | $59.0K | 0.00% | +3,214+128.5% | Added |
| Citigroup Inc | 3,828 | $39.7K | 0.00% | −5,256−57.9% | Reduced |
| Ameritas Investment Partners, Inc. | 3,095 | $32.1K | 0.00% | +1,507+94.9% | Added |
| Great West Life Assurance Co | 2,839 | $29.0K | 0.00% | +1,989+234.0% | Added |
| Advisor Group Holdings, Inc. | 2,713 | $28.1K | 0.00% | −1,538−36.2% | Reduced |
| Amalgamated Bank | 2,575 | $27.0K | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 2,120 | $21.0K | 0.00% | −22,206−91.3% | Reduced |
| FMR LLC | 1,889 | $19.6K | 0.00% | −35,435−94.9% | Reduced |
| Metropolitan Life Insurance Co | 1,818 | $18.9K | 0.00% | +445+32.4% | Added |
| China Universal Asset Management Co., Ltd. | 1,455 | $15.1K | 0.00% | +738+102.9% | Added |
| Huntington National Bank | 1,051 | $10.9K | 0.00% | −18−1.7% | Reduced |
| Vestcor Inc | 915 | $9.00K | 0.00% | −15,980−94.6% | Reduced |