DEERFIELD MANAGEMENT COMPANY, L.P.
Position in NAMS — NewAmsterdam Pharma Co N.V.
CIK 1009258
NEW YORK, NY
Position in NAMS
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$146,516,557
+$8,141,211 QoQ
Shares Held
4,357,576
0.0% QoQ
Ownership
3.65%
of shares outstanding
% of Portfolio
2.48%
of 13F equity value
Holder Rank
#6
of 197 holders
Holding Since
Dec 2022
15 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in NAMS Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Jun 30, 2026DEERFIELD MANAGEMENT COMPANY, L.P. holds $3,763,549,987 across 45 Biotechnology names. NAMS ranks #9 (3.9% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | RVMD |
Revolution Medicines, Inc.
|
2,392,000 | $447,973,760 | |
| 2 | PRAX |
Praxis Precision Medicines, Inc.
|
963,351 | $322,520,281 | |
| 3 | LEGN |
Legend Biotech Corp
|
8,137,638 | $235,014,985 | |
| 4 | COGT |
Cogent Biosciences, Inc.
|
5,006,104 | $193,736,224 | |
| 5 | GMAB |
Genmab A/S
|
6,865,000 | $188,581,550 | |
| 6 | VERA |
Vera Therapeutics, Inc.
|
3,916,400 | $168,052,724 | |
| 7 | IONS |
Ionis Pharmaceuticals Inc
|
1,979,669 | $156,967,955 | |
| 8 | CELC |
Celcuity Inc.
|
1,451,014 | $151,805,084 |
All Filings in NAMS
Export CSV
28 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 NAMSW | $1,982,858 | 92,787 | Shares | Defined | 2026-08-14 | |
| 2026-06-30 | $144,533,699 | 4,264,789 | Shares | Defined | 2026-08-14 | |
| 2026-03-31 NAMSW | $1,859,451 | 92,787 | Shares | Defined | 2026-05-15 | |
| 2026-03-31 | $136,515,895 | 4,264,789 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 NAMSW | $2,134,101 | 92,787 | Shares | Defined | 2026-02-17 | |
| 2025-12-31 | $146,100,798 | 4,164,789 | Shares | Defined | 2026-02-17 | |
| 2025-09-30 NAMSW | $1,587,585 | 92,787 | Shares | Defined | 2025-11-14 | |
| 2025-09-30 | $121,344,748 | 4,266,693 | Shares | Defined | 2025-11-14 | |
| 2025-06-30 NAMSW | $742,296 | 92,787 | Shares | Defined | 2025-08-14 | |
| 2025-06-30 | $92,649,908 | 5,115,953 | Shares | Defined | 2025-08-14 | |
| 2025-03-31 NAMSW | $834,155 | 92,787 | Shares | Defined | 2025-05-15 | |
| 2025-03-31 | $84,007,999 | 4,103,957 | Shares | Defined | 2025-05-15 | |
| 2024-12-31 NAMSW | $1,322,214 | 92,787 | Shares | Defined | 2025-02-14 | |
| 2024-12-31 | $110,878,538 | 4,314,340 | Shares | Defined | 2025-02-14 | |
| 2024-09-30 NAMSW | $649,509 | 92,787 | Shares | Defined | 2024-11-14 | |
| 2024-09-30 | $14,969,050 | 901,750 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 NAMSW | $809,102 | 92,787 | Shares | Defined | 2024-08-14 | |
| 2024-06-30 | $16,698,292 | 869,250 | Shares | Defined | 2024-08-14 | |
| 2024-03-31 NAMSW | $1,024,368 | 92,787 | Shares | Defined | 2024-05-15 | |
| 2024-03-31 | $15,774,550 | 667,000 | Shares | Defined | 2024-05-15 | |
| 2023-12-31 NAMSW | $290,423 | 92,787 | Shares | Defined | 2024-02-14 | |
| 2023-09-30 NAMSW | $176,295 | 92,787 | Shares | Defined | 2023-11-14 | |
| 2023-06-30 NAMSW | $193,924 | 92,787 | Shares | Defined | 2023-08-14 | |
| 2023-06-30 | $30,149,746 | 2,535,723 | Shares | Defined | 2023-08-14 | |
| 2023-03-31 NAMSW | $170,728 | 92,787 | Shares | Defined | 2023-05-15 | |
| 2023-03-31 | $33,623,686 | 2,535,723 | Shares | Defined | 2023-05-15 | |
| 2022-12-31 NAMSW | $80,539 | 92,787 | Shares | Defined | 2023-02-14 | |
| 2022-12-31 | $27,034,169 | 2,480,199 | Shares | Defined | 2023-02-14 | |
| No filing history on record for this holder in this stock. | ||||||