DEERFIELD MANAGEMENT COMPANY, L.P.
Position in CPRX — Catalyst Pharmaceuticals, Inc.
CIK 1009258
NEW YORK, NY
Position in CPRX
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$97,643,536
-$16,982,961 QoQ
Shares Held
3,943,600
-19.7% QoQ
Ownership
3.22%
of shares outstanding
% of Portfolio
1.36%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2022
15 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in CPRX Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Mar 31, 2026DEERFIELD MANAGEMENT COMPANY, L.P. holds $5,090,522,306 across 44 Biotechnology names. CPRX ranks #12 (1.9% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | NUVL |
Nuvalent, Inc.
|
17,248,450 | $1,767,103,702 | |
| 2 | COGT |
Cogent Biosciences, Inc.
|
9,043,903 | $348,099,826 | |
| 3 | PRAX |
Praxis Precision Medicines, Inc.
|
963,351 | $310,382,058 | |
| 4 | RVMD |
Revolution Medicines, Inc.
|
2,297,000 | $223,383,250 | |
| 5 | CELC |
Celcuity Inc.
|
1,714,000 | $195,635,960 | |
| 6 | LRMR |
Larimar Therapeutics, Inc.
|
35,606,974 | $160,231,383 | |
| 7 | VERA |
Vera Therapeutics, Inc.
|
3,722,100 | $149,740,083 | |
| 8 | IONS |
Ionis Pharmaceuticals Inc
|
1,979,669 | $148,653,345 |
All Filings in CPRX
Export CSV
15 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $97,643,536 | 3,943,600 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $114,626,497 | 4,911,161 | Shares | Defined | 2026-02-17 | |
| 2025-09-30 | $98,002,909 | 4,974,767 | Shares | Defined | 2025-11-14 | |
| 2025-06-30 | $62,484,629 | 2,879,476 | Shares | Defined | 2025-08-14 | |
| 2025-03-31 | $82,987,113 | 3,422,149 | Shares | Defined | 2025-05-15 | |
| 2024-12-31 | $65,385,939 | 3,133,011 | Shares | Defined | 2025-02-14 | |
| 2024-09-30 | $123,845,123 | 6,229,634 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $141,381,954 | 9,127,305 | Shares | Defined | 2024-08-14 | |
| 2024-03-31 | $145,545,222 | 9,130,817 | Shares | Defined | 2024-05-15 | |
| 2023-12-31 | $149,422,425 | 8,888,901 | Shares | Defined | 2024-02-14 | |
| 2023-09-30 | $95,764,480 | 8,192,000 | Shares | Defined | 2023-11-14 | |
| 2023-06-30 | $110,100,480 | 8,192,000 | Shares | Defined | 2023-08-14 | |
| 2023-03-31 | $171,687,541 | 10,355,099 | Shares | Defined | 2023-05-15 | |
| 2022-12-31 | $109,450,732 | 5,884,448 | Shares | Defined | 2023-02-14 | |
| 2022-09-30 | $62,815,680 | 4,896,000 | Shares | Defined | 2022-11-14 | |
| No filing history on record for this holder in this stock. | ||||||