Who Owns PHAT?
Phathom Pharmaceuticals, Inc. — Institutional Ownership & 13F Holdings
$11.81
+0.11 (+0.94%)
Market Cap
$958.2M
Shares Outstanding
78,798,700
Institutional Holders
137
Total Inst. Value
$389.8M
% of Float Held
133.9%
QoQ Holder Change
+48
Institutional data as of Q1 2025
New Positions
27
Closed Positions
31
Increased
47
Decreased
36
Institutional Ownership Trend
Top 10 Institutional Holders(Q1 2025)
| # | Fund | Value | Shares |
|---|---|---|---|
| 1 | Frazier Life Sciences Management, L.P. | $63.4M | 10,109,279 |
| 2 | Medicxi Ventures Management (Jersey) Ltd | $46.8M | 7,464,572 |
| 3 | JENNISON ASSOCIATES LLC | $44.2M | 7,042,325 |
| 4 | Invesco Ltd. | $22.9M | 3,650,812 |
| 5 | Carlyle Group Inc. | $21.9M | 3,496,808 |
| 6 | BlackRock, Inc. | $20.8M | 3,323,603 |
| 7 | VANGUARD GROUP INC | $17.4M | 2,778,687 |
| 8 | Ensign Peak Advisors, Inc | $15.8M | 2,514,284 |
| 9 | NEA Management Company, LLC | $12.3M | 1,960,169 |
| 10 | WASATCH ADVISORS LP | $10.7M | 1,701,627 |
Biggest Buyers & Sellers This Quarter
Top Buyers
| Fund | Shares Added | Value |
|---|---|---|
| WASATCH ADVISORS LP | +143K | $10.7M |
| 683 Capital Management, LLC | +420K | $9.1M |
| TANG CAPITAL MANAGEMENT LLC | +700K | $7.5M |
| Propel Bio Management, LLC | +145K | $7.1M |
| MORGAN STANLEY | +165K | $7.1M |
Top Sellers
| Fund | Shares Removed | Value |
|---|---|---|
| Avidity Partners Management LP | -590K | $5.0M |
| TWO SIGMA INVESTMENTS, LP | -388K | $610K |
| FMR LLC | -292K | $3.2M |
| Woodline Partners LP | -250K | $4.7M |
| GOLDMAN SACHS GROUP INC | -224K | $1.2M |
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Frequently Asked Questions
How many institutional investors hold PHAT?
As of Q1 2025, 137 institutional investors report holding PHAT (Phathom Pharmaceuticals, Inc.) in their 13F filings.
What percentage of Phathom Pharmaceuticals, Inc. is owned by institutions?
Institutional investors hold approximately 133.9% of Phathom Pharmaceuticals, Inc.'s float as reported in SEC 13F filings.
Which hedge fund owns the most PHAT?
The largest institutional holder of PHAT is Frazier Life Sciences Management, L.P. with $63.4M in shares.
Are institutions buying or selling PHAT?
This quarter, 27 institutions opened new positions in PHAT and 31 closed their positions.
What is 13F institutional ownership?
SEC Form 13F is a quarterly report filed by institutional investment managers with over $100M in qualifying assets. It discloses their US equity holdings, providing transparency into what the largest investors are buying and selling.
How often is institutional ownership data updated?
13F filings are due 45 days after each calendar quarter end (May 15, Aug 14, Nov 14, Feb 14). Data is updated on HedgeTrace as new filings are processed.