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, Q2 2026
Institutional positions in Phathom Pharmaceuticals, Inc. as of Jun 30, 2026. 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
- 161
- −11 vs. Q1 2026
- Shares held
- 72.1M
- +3.21M (+4.7%) vs. Q1 2026
- Total value
- $782.1M
- +$16.9M (+2.2%) vs. Q1 2026
- New holders
- 21
- 59 more added
- Sold out
- 32
- 50 more reduced
2 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding Phathom Pharmaceuticals, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Swiss National Bank | 98,800 | $1.07M | 0.00% | +6,200+6.7% | Added |
| Stratos Wealth Partners, LTD. | 100,000 | $1.08M | 0.01% | 00.0% | Unchanged |
| Schroder Investment Management Group | 101,745 | $1.11M | 0.00% | +101,745 | New |
| Russell Investments Group, Ltd. | 102,754 | $1.11M | 0.00% | +17,071+19.9% | Added |
| Virtus Investment Advisers, Inc. | 112,139 | $1.22M | 0.28% | +54,153+93.4% | Added |
| Engineers Gate Manager LP | 118,257 | $1.28M | 0.02% | +44,409+60.1% | Added |
| Nuveen, LLC | 127,127 | $1.38M | 0.00% | +9,826+8.4% | Added |
| Diadema Partners LP | 129,950 | $1.41M | 0.50% | +75,300+137.8% | Added |
| Wellington Management Group LLP | 132,284 | $1.44M | 0.00% | +20,532+18.4% | Added |
| AQR Capital Management LLC | 134,901 | $1.46M | 0.00% | +79,433+143.2% | Added |
| XTX Topco Ltd | 135,832 | $1.47M | 0.02% | −24,669−15.4% | Reduced |
| Bank of America Corp | 151,015 | $1.64M | 0.00% | −57,100−27.4% | Reduced |
| Wells Fargo & Company | 152,002 | $1.65M | 0.00% | +105,889+229.6% | Added |
| Bank of New York Mellon Corp | 152,313 | $1.65M | 0.00% | +28,295+22.8% | Added |
| Jones Hill Capital LP | 161,486 | $1.75M | 0.37% | +161,486 | New |
| Trexquant Investment LP | 173,884 | $1.89M | 0.01% | −119,421−40.7% | Reduced |
| Citadel Advisors LLC | 184,901 | $2.01M | 0.00% | −198,157−51.7% | Reduced |
| Opaleye Management Inc. | 185,589 | $2.01M | 0.18% | +185,589 | New |
| Jump Financial, LLC | 191,866 | $2.08M | 0.02% | +165,421+625.5% | Added |
| Morgan Stanley | 199,909 | $2.17M | 0.00% | +123,228+160.7% | Added |
| Avidity Partners Management LP | 200,000 | $2.17M | 0.35% | −49,390−19.8% | Reduced |
| GWM Advisors LLC | 203,962 | $2.21M | 0.01% | +20,962+11.5% | Added |
| UBS Group AG | 204,573 | $2.22M | 0.00% | −155,798−43.2% | Reduced |
| Jane Street Group, LLC | 212,706 | $2.31M | 0.00% | +212,706 | New |
| Renaissance Technologies LLC | 226,400 | $2.46M | 0.00% | −79,400−26.0% | Reduced |
| Simplify Asset Management Inc. | 249,267 | $2.70M | 0.04% | −13,119−5.0% | Reduced |
| JPMorgan Chase & Co | 275,251 | $2.99M | 0.00% | −12,179−4.2% | Reduced |
| Ameriprise Financial Inc | 293,979 | $3.19M | 0.00% | +39,760+15.6% | Added |
| Hennion & Walsh Asset Management, Inc. | 327,278 | $3.55M | 0.10% | +181,346+124.3% | Added |
| Vanguard Fiduciary Trust Co | 354,573 | $3.85M | 0.00% | +15,860+4.7% | Added |
| Woodline Partners LP | 369,052 | $4.00M | 0.01% | 00.0% | Unchanged |
| Charles Schwab Investment Management Inc | 419,094 | $4.55M | 0.00% | +10,079+2.5% | Added |
| StepStone Group LP | 422,085 | $4.58M | 0.21% | 00.0% | Unchanged |
| Northern Trust Corp | 458,301 | $4.97M | 0.00% | +43,345+10.4% | Added |
| Two Sigma Investments, LP | 519,076 | $5.63M | 0.00% | +36,940+7.7% | Added |
| Perceptive Advisors LLC | 532,000 | $5.77M | 0.09% | −393,000−42.5% | Reduced |
| EcoR1 Capital, LLC | 625,000 | $6.78M | 0.34% | 00.0% | Unchanged |
| Marshall Wace, LLP | 666,090 | $7.23M | 0.01% | −194,602−22.6% | Reduced |
| HSBC Holdings PLC | 709,695 | $7.70M | 0.00% | +709,695 | New |
| SummitTX Capital, L.P. | 789,550 | $8.57M | 0.23% | −206,335−20.7% | Reduced |
| Vanguard Portfolio Management LLC | 796,631 | $8.64M | 0.00% | +130,602+19.6% | Added |
| Point72 Asset Management, L.P. | 1,022,193 | $11.1M | 0.02% | +1,022,193 | New |
| Propel Bio Management, LLC | 1,050,358 | $11.4M | 5.96% | +209,086+24.9% | Added |
| Ensign Peak Advisors, Inc | 1,051,913 | $11.4M | 0.02% | −575,893−35.4% | Reduced |
| Wasatch Advisors Inc | 1,307,247 | $14.2M | 0.09% | −33,669−2.5% | Reduced |
| Geode Capital Management, LLC | 1,315,687 | $14.3M | 0.00% | −12,358−0.9% | Reduced |
| Nomura Asset Management International Inc. | 1,462,738 | $15.9M | 0.02% | +257,369+21.4% | Added |
| Catalys Pacific, LLC | 1,493,854 | $16.2M | 7.06% | 00.0% | Unchanged |
| State Street Corp | 1,586,323 | $17.2M | 0.00% | +199,433+14.4% | Added |
| Goldman Sachs Group Inc | 1,778,032 | $19.3M | 0.00% | +1,151,836+183.9% | Added |
| 683 Capital Management, LLC | 1,850,000 | $20.1M | 1.85% | 00.0% | Unchanged |
| NEA Management Company, LLC | 1,960,169 | $21.3M | 1.34% | 00.0% | Unchanged |
| Franklin Resources Inc | 1,970,828 | $21.4M | 0.00% | +976,324+98.2% | Added |
| GW&K Investment Management, LLC | 2,166,838 | $23.5M | 0.18% | +745,729+52.5% | Added |
| Vanguard Capital Management LLC | 2,656,944 | $28.8M | 0.00% | +73,308+2.8% | Added |
| Millennium Management LLC | 3,375,834 | $36.6M | 0.02% | −647,075−16.1% | Reduced |
| Carlyle Group Inc. | 3,496,808 | $37.9M | 0.38% | 00.0% | Unchanged |
| Invesco Ltd. | 4,029,731 | $43.7M | 0.00% | −292,329−6.8% | Reduced |
| BlackRock, Inc. | 4,525,129 | $49.1M | 0.00% | +463,133+11.4% | Added |
| Medicxi Ventures Management (Jersey) Ltd | 7,464,572 | $81.0M | 45.65% | 00.0% | Unchanged |
| Frazier Life Sciences Management, L.P. | 12,466,489 | $135.3M | 2.95% | 00.0% | Unchanged |
| Susquehanna Portfolio Strategies, LLC | 0 | $0 | 0.00% | −267,962−100.0% | Sold out |
| Catalio Capital Management, LP | 0 | $0 | 0.00% | −247,767−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −95,301−100.0% | Sold out |
| Freestone Grove Partners LP | 0 | $0 | 0.00% | −84,573−100.0% | Sold out |
| Hussman Strategic Advisors, Inc. | 0 | $0 | 0.00% | −84,000−100.0% | Sold out |
| Burkehill Global Management, LP | 0 | $0 | 0.00% | −75,000−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −40,852−100.0% | Sold out |
| Algert Global LLC | 0 | $0 | 0.00% | −39,420−100.0% | Sold out |
| VARCOV Co. | 0 | $0 | 0.00% | −39,173−100.0% | Sold out |
| Tudor Investment Corp Et Al | 0 | $0 | 0.00% | −38,225−100.0% | Sold out |
| Los Angeles Capital Management LLC | 0 | $0 | 0.00% | −24,676−100.0% | Sold out |
| Dark Forest Capital Management LP | 0 | $0 | 0.00% | −17,460−100.0% | Sold out |
| LPL Financial LLC | 0 | $0 | 0.00% | −17,207−100.0% | Sold out |
| DRW Securities, LLC | 0 | $0 | 0.00% | −15,921−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −15,614−100.0% | Sold out |
| Bridgefront Capital, LLC | 0 | $0 | 0.00% | −14,954−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −13,293−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −12,111−100.0% | Sold out |
| Quadrature Capital Ltd | 0 | $0 | 0.00% | −12,078−100.0% | Sold out |
| Quantinno Capital Management LP | 0 | $0 | 0.00% | −11,536−100.0% | Sold out |
| Primoris Wealth Advisors, LLC | 0 | $0 | 0.00% | −11,449−100.0% | Sold out |
| ProShare Advisors LLC | 0 | $0 | 0.00% | −10,246−100.0% | Sold out |
| Clear Street Markets LLC | 0 | $0 | 0.00% | −3,048−100.0% | Sold out |
| Quadrant Capital Group LLC | 0 | $0 | 0.00% | −1,091−100.0% | Sold out |
| C M Bidwell & Associates Ltd | 0 | $0 | 0.00% | −590−100.0% | Sold out |
| Signaturefd, LLC | 0 | $0 | 0.00% | −239−100.0% | Sold out |
| Rachor Investment Advisory Services, LLC | 0 | $0 | 0.00% | −25−100.0% | Sold out |
| MAI Capital Management | 0 | $0 | 0.00% | −23−100.0% | Sold out |
| EverSource Wealth Advisors, LLC | 0 | $0 | 0.00% | −12−100.0% | Sold out |
| Root Financial Partners, LLC | 0 | $0 | 0.00% | −11−100.0% | Sold out |
| IFP Advisors, Inc | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Hughes Financial Services, LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Janus Henderson Group PLC | – | – | – | – | Not filed |
| CWM, LLC | – | – | – | – | Not filed |