Who owns Phathom Pharmaceuticals, Inc.?
Institutional ownership of PHAT from SEC Form 13F filings across 112 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
112
13F holders
$343.9M
value, 2026 filers
39.3%
of shares outstanding (31.8M sh)
18
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of PHAT's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 4.5M | $49.1M | 0.0% | 5.6% | +11.4% |
| 2 | Invesco Ltd. | 4.0M | $43.7M | 0.0% | 5% | -6.8% |
| 3 | MILLENNIUM MANAGEMENT LLC | 3.4M | $36.6M | 0.0% | 4.2% | -16.1% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 2.7M | $28.8M | 0.0% | 3.3% | -48.6% |
| 5 | FRANKLIN RESOURCES INC | 2.0M | $21.4M | 0.0% | 2.4% | +98.2% |
| 6 | GOLDMAN SACHS GROUP INC | 1.8M | $19.3M | 0.0% | 2.2% | +183.9% |
| 7 | NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 1.5M | $15.9M | 0.0% | 1.8% | +21.4% |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 1.3M | $14.3M | 0.0% | 1.6% | -0.9% |
| 9 | Point72 Asset Management, L.P.NEW | 1.0M | $11.1M | 0.0% | 1.3% | new |
| 10 | VANGUARD PORTFOLIO MANAGEMENT LLC | 796,631 | $8.6M | 0.0% | 1% | +19.6% |
| 11 | HSBC HOLDINGS PLCNEW | 709,695 | $7.7M | 0.0% | 0.9% | new |
| 12 | MARSHALL WACE, LLP | 666,090 | $7.2M | 0.0% | 0.8% | -22.6% |
| 13 | TWO SIGMA INVESTMENTS, LP | 519,076 | $5.6M | 0.0% | 0.6% | +7.7% |
| 14 | NORTHERN TRUST CORP | 458,301 | $5.0M | 0.0% | 0.6% | +10.4% |
| 15 | StepStone Group LP | 422,085 | $4.6M | 0.2% | 0.5% | 0.0% |
| 16 | Sixth Street Partners Management Company, L.P.NEW | 419,094 | $4.5M | 0.8% | 0.5% | new |
| 17 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 419,094 | $4.5M | 0.0% | 0.5% | +2.5% |
| 18 | Woodline Partners LP | 369,052 | $4.0M | 0.0% | 0.5% | -50.0% |
| 19 | VANGUARD FIDUCIARY TRUST CO | 354,573 | $3.8M | 0.0% | 0.4% | +4.7% |
| 20 | AMERIPRISE FINANCIAL INC | 293,979 | $3.2M | 0.0% | 0.4% | +15.6% |
| 21 | JPMORGAN CHASE & CO | 275,251 | $3.0M | 0.0% | 0.3% | -4.2% |
| 22 | JANE STREET GROUP, LLCNEW | 212,706 | $2.3M | 0.0% | 0.3% | new |
| 23 | UBS Group AG | 204,573 | $2.2M | 0.0% | 0.3% | -43.2% |
| 24 | NewEdge Advisors, LLC | 203,962 | $2.2M | 0.0% | 0.3% | +11.5% |
| 25 | MORGAN STANLEY | 199,909 | $2.2M | 0.0% | 0.2% | +160.7% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.