PHATHOM PHARMACEUTICALS INC (PHAT): Institutional Ownership
Hedge funds and institutional managers reporting a position in PHAT · Health Care. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
15
13F filers
Aggregate Value
$34.3M
Across holders
Last Price
$10.72
2026-06-26
Sector
Health Care
GICS
Holder activity7 new4 added4 reduced
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| MOORE CAPITAL MANAGEMENT, LP CIK 0001448574 | Hedge Fund | 600K | $10.0M | 29.0% | 0.1% | New | — | Q4 2025 |
| TWO SIGMA INVESTMENTS, LP CIK 0001179392 | Hedge Fund | 482K | $5.4M | 15.6% | 0.0% | Added | +$4.7M | Q1 2026 |
| Walleye Capital LLC CIK 0001758720 | Hedge Fund | 290K | $3.4M | 10.0% | 0.0% | New | — | Q3 2025 |
| RENAISSANCE TECHNOLOGIES LLC CIK 0001037389 | Hedge Fund | 306K | $3.4M | 9.9% | 0.0% | New | — | Q1 2026 |
| CAXTON ASSOCIATES LLP CIK 0002051323 | Hedge Fund | 182K | $3.0M | 8.8% | 0.1% | New | — | Q4 2025 |
| CITADEL ADVISORS LLC CIK 0001423053 | Hedge Fund | 237K | $2.6M | 7.7% | 0.0% | Added | +$2.3M | Q1 2026 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. CIK 0001165408 | Hedge Fund | 82K | $2.6M | 7.6% | 0.0% | New | — | Q3 2021 |
| MARSHALL WACE, LLP CIK 0001318757 | Hedge Fund | 125K | $1.4M | 4.0% | 0.0% | New | — | Q1 2026 |
| BALYASNY ASSET MANAGEMENT LLC CIK 0001218710 | Hedge Fund | 95K | $1.1M | 3.1% | 0.0% | Reduced | $-1.2M | Q1 2026 |
| TUDOR INVESTMENT CORP ET AL CIK 0000923093 | Hedge Fund | 38K | $425K | 1.2% | 0.0% | Added | +$107K | Q1 2026 |
| Brevan Howard Capital Management LP CIK 0001512857 | Hedge Fund | 33K | $369K | 1.1% | 0.0% | Reduced | $-112K | Q1 2026 |
| Man Group plc CIK 0001637460 | Hedge Fund | 30K | $337K | 1.0% | 0.0% | New | — | Q1 2026 |
| Schonfeld Strategic Advisors LLC CIK 0001665241 | Hedge Fund | 16K | $173K | 0.5% | 0.0% | Reduced | $-170K | Q1 2026 |
| ExodusPoint Capital Management, LP CIK 0001736225 | Hedge Fund | 13K | $148K | 0.4% | 0.0% | Reduced | $-101K | Q1 2026 |
| AQR CAPITAL MANAGEMENT LLC CIK 0001167557 | Hedge Fund | 490 | $5K | 0.0% | 0.0% | Added | +$700 | Q1 2026 |
New
Hedge Fund
$10.0M· 29.0% of total· 0.1% port· 600K sh· — QoQ· Q4 2025
Added
Hedge Fund
$5.4M· 15.6% of total· 0.0% port· 482K sh· +$4.7M QoQ· Q1 2026
New
Hedge Fund
$3.4M· 10.0% of total· 0.0% port· 290K sh· — QoQ· Q3 2025
New
Hedge Fund
$3.4M· 9.9% of total· 0.0% port· 306K sh· — QoQ· Q1 2026
New
Hedge Fund
$3.0M· 8.8% of total· 0.1% port· 182K sh· — QoQ· Q4 2025
Added
Hedge Fund
$2.6M· 7.7% of total· 0.0% port· 237K sh· +$2.3M QoQ· Q1 2026
New
Hedge Fund
$2.6M· 7.6% of total· 0.0% port· 82K sh· — QoQ· Q3 2021
New
Hedge Fund
$1.4M· 4.0% of total· 0.0% port· 125K sh· — QoQ· Q1 2026
Reduced
Hedge Fund
$1.1M· 3.1% of total· 0.0% port· 95K sh· $-1.2M QoQ· Q1 2026
Added
Hedge Fund
$425K· 1.2% of total· 0.0% port· 38K sh· +$107K QoQ· Q1 2026
Reduced
Hedge Fund
$369K· 1.1% of total· 0.0% port· 33K sh· $-112K QoQ· Q1 2026
New
Hedge Fund
$337K· 1.0% of total· 0.0% port· 30K sh· — QoQ· Q1 2026
Reduced
Hedge Fund
$173K· 0.5% of total· 0.0% port· 16K sh· $-170K QoQ· Q1 2026
Reduced
Hedge Fund
$148K· 0.4% of total· 0.0% port· 13K sh· $-101K QoQ· Q1 2026
Added
Hedge Fund
$5K· 0.0% of total· 0.0% port· 490 sh· +$700 QoQ· Q1 2026