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.
Holders of 5% or more of PHAT
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Phathom Pharmaceuticals, Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Frazier Life Sciences Public Fund, L.P. | 13D/A | 8.60%5.99M shares | 0.00 ppfrom 8.60% | May 13, 20253 filings | Nov 4, 2025 | SEC |
| Millennium Management LLC | 13G | 5.30%4.18M shares | −1.80 ppfrom 7.10% | Aug 13, 20254 filings | Mar 12, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
14 Schedule 13D and 13G filings on Phathom Pharmaceuticals, Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Mar 12, 20264:46 PM ET | Millennium Management LLCand 2 others | 13G | 5.30%4.18M shares | −1.80 ppfrom 7.10% | Mar 6, 2026 | SEC |
| Nov 4, 20255:24 PM ET | Frazier Life Sciences Public Fund, L.P.and 16 others | 13D/A | 8.60%5.99M shares | 0.00 ppfrom 8.60% | Nov 1, 2025 | SEC |
| Nov 3, 20254:22 PM ET | Millennium Management LLCand 3 others | 13G/A | 7.10%5.08M shares | +1.20 ppfrom 5.90% | Sep 30, 2025 | SEC |
| Aug 28, 20254:30 PM ET | Carlyle Group Inc.and 10 others | 13G/A | 4.90%3.50M shares | –Below 5% | Aug 28, 2025 | SEC |
| Aug 25, 20254:12 PM ET | Millennium Management LLCand 3 others | 13G/A | 5.90%4.16M shares | +0.60 ppfrom 5.30% | Aug 19, 2025 | SEC |
| Aug 20, 20255:18 PM ET | Frazier Life Sciences Public Fund, L.P.and 22 others | 13D/A | 8.60%5.99M shares | −11.30 ppfrom 19.90% | Aug 18, 2025 | SEC |
| Aug 13, 20254:00 PM ET | Millennium Management LLCand 2 others | 13G | 5.30%3.76M shares | New | Aug 11, 2025 | SEC |
| Jun 9, 202510:47 AM ET | Jennison Associates LLC | 13G/A | 0.00%0 shares | 0.00 ppfrom 0.00%Below 5% | May 31, 2025 | SEC |
| Jun 6, 20251:29 PM ET | Prudential Financial Inc | 13G/A | 0.00%2.63K shares | −11.00 ppfrom 11.00%Below 5% | May 31, 2025 | SEC |
| Jun 4, 20254:30 PM ET | Jennison Associates LLC | 13G/A | 0.00%0 shares | –Below 5% | Apr 30, 2025 | SEC |
| May 13, 20254:22 PM ET | Frazier Life Sciences Public Fund, L.P.and 22 others | 13D/A | 19.90%14.4M shares | – | May 9, 2025 | SEC |
| Apr 24, 20252:30 PM ET | BlackRock, Inc. | 13G/A | 4.60%3.23M shares | –Below 5% | Mar 31, 2025 | SEC |
| Nov 5, 20244:12 PM ET | Prudential Financial Inc | 13G/A | 11.00%7.42M shares | +1.70 ppfrom 9.30% | Oct 31, 2024 | SEC |
| Nov 5, 20243:32 PM ET | Prudential Financial Inc | 13G | 9.30%6.28M shares | New | Sep 30, 2024 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Phathom Pharmaceuticals, Inc. shares.
No Form 144 notices for Phathom Pharmaceuticals, Inc. are on file.