683 Capital Management, LLC
Position in PHAT — Phathom Pharmaceuticals, Inc.
CIK 1404574
NEW YORK, NY
Position in PHAT
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$20,553,500
-$9,059,650 QoQ
Shares Held
1,850,000
+3.6% QoQ
Ownership
2.32%
of shares outstanding
% of Portfolio
2.08%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Dec 2021
18 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in PHAT Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Mar 31, 2026683 Capital Management, LLC holds $329,314,446 across 63 Biotechnology names. PHAT ranks #6 (6.2% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | PTGX |
Protagonist Therapeutics, Inc
|
355,000 | $37,417,000 | |
| 2 | WVE |
Wave Life Sciences Ltd.
|
4,900,000 | $35,525,000 | |
| 3 | IMUX |
Immunic, Inc.
|
2,450,000 | $27,195,000 | |
| 4 | ANAB |
Anaptysbio, Inc
|
625,000 | $23,108,312 | |
| 5 | MGTX |
MeiraGTx Holdings plc
|
2,450,000 | $21,217,000 | |
| 6 | PHAT |
Phathom Pharmaceuticals, Inc.
This page
|
1,850,000 | $20,553,500 | |
| 7 | TGTX |
Tg Therapeutics, Inc.
|
590,000 | $19,599,800 | |
| 8 | SRPT |
Sarepta Therapeutics, Inc.
|
750,000 | $16,320,000 |
All Filings in PHAT
Export CSV
18 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $20,553,500 | 1,850,000 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $29,613,150 | 1,785,000 | Shares | Defined | 2026-02-17 | |
| 2025-09-30 | $21,425,872 | 1,820,380 | Shares | Defined | 2025-11-14 | |
| 2025-06-30 | $20,186,950 | 2,105,000 | Shares | Defined | 2025-08-14 | |
| 2025-03-31 | $9,060,150 | 1,445,000 | Shares | Defined | 2025-05-15 | |
| 2024-12-31 | $8,323,000 | 1,025,000 | Shares | Defined | 2025-02-14 | |
| 2024-09-30 | $18,260,800 | 1,010,000 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $14,420,000 | 1,400,000 | Shares | Defined | 2024-08-14 | |
| 2024-03-31 | $17,523,000 | 1,650,000 | Shares | Defined | 2024-05-15 | |
| 2023-12-31 | $11,686,400 | 1,280,000 | Shares | Defined | 2024-02-14 | |
| 2023-09-30 | $11,407,000 | 1,100,000 | Shares | Defined | 2023-11-14 | |
| 2023-06-30 | $18,437,000 | 1,287,500 | Shares | Defined | 2023-08-14 | |
| 2023-03-31 | $9,464,070 | 1,325,500 | Shares | Defined | 2023-05-15 | |
| 2022-12-31 | $15,147,000 | 1,350,000 | Shares | Defined | 2023-02-14 | |
| 2022-09-30 | $18,436,488 | 1,663,943 | Shares | Defined | 2022-11-14 | |
| 2022-06-30 | $12,153,600 | 1,440,000 | Shares | Defined | 2022-08-15 | |
| 2022-03-31 | $4,831,550 | 355,000 | Shares | Defined | 2022-05-16 | |
| 2021-12-31 | $5,716,003 | 290,595 | Shares | Defined | 2022-02-14 | |
| No filing history on record for this holder in this stock. | ||||||