NewAmsterdam Pharma Company N.V. - Equity Warrant

SecurityNAMSW / NewAmsterdam Pharma Company N.V. - Equity Warrant
InstitutionDeerfield Management Company, L.p. (series C)
Latest Disclosed Ownership92,787 shares
Latest Disclosed Value $ 1,859,451
Deerfield Management Company, L.p. (series C) ownership in NAMSW / NewAmsterdam Pharma Company N.V. - Equity Warrant

On May 15, 2026 - Deerfield Management Company, L.p. (series C) filed a 13F-HR form disclosing ownership of 92,787 shares of NewAmsterdam Pharma Company N.V. - Equity Warrant (US:NAMSW) valued at $1,826,048 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 92,787 shares of NewAmsterdam Pharma Company N.V. - Equity Warrant. This represents a change in shares of 0.00% during the quarter. The current value of the position is $1,829,760 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F NEWAMSTERDAM PHARMA *W EXP 99/99/999 N62509117 92,787 0 0.00 1,859 -12.89 0.0219
2026-02-17 2025-12-31 13F NEWAMSTERDAM PHARMA *W EXP 99/99/999 N62509117 92,787 0 0.00 2,134 34.47 0.0273
2025-11-14 2025-09-30 13F NEWAMSTERDAM PHARMA *W EXP 99/99/999 N62509117 92,787 0 0.00 1,588 113.88 0.0242
2025-08-14 2025-06-30 13F NEWAMSTERDAM PHARMA *W EXP 99/99/999 N62509117 92,787 0 0.00 742 -11.03 0.0135
2025-05-15 2025-03-31 13F NEWAMSTERDAM PHARMA *W EXP 99/99/999 N62509117 92,787 0 0.00 834 -36.91 0.0165
2025-02-14 2024-12-31 13F NEWAMSTERDAM PHARMA *W EXP 99/99/999 N62509117 92,787 0 0.00 1,322 103.70 0.0250
2024-11-14 2024-09-30 13F NEWAMSTERDAM PHARMA *W EXP 99/99/999 N62509117 92,787 0 0.00 650 -19.78 0.0097
2024-08-14 2024-06-30 13F NEWAMSTERDAM PHARMA *W EXP 99/99/999 N62509117 92,787 0 0.00 809 -21.00 0.0135
2024-05-15 2024-03-31 13F NEWAMSTERDAM PHARMA *W EXP 99/99/999 N62509117 92,787 0 0.00 1,024 253.10 0.0178
2024-02-14 2023-12-31 13F NEWAMSTERDAM PHARMA *W EXP 11/22/202 N62509117 92,787 0 0.00 290 64.77 0.0054
2023-11-14 2023-09-30 13F NEWAMSTERDAM PHARMA *W EXP 11/22/202 N62509117 92,787 0 0.00 176 -8.81 0.0039
2023-08-14 2023-06-30 13F NEWAMSTERDAM PHARMA *W EXP 11/22/202 N62509117 92,787 0 0.00 194 13.53 0.0041
2023-05-15 2023-03-31 13F NEWAMSTERDAM PHARMA *W EXP 11/22/202 N62509117 92,787 0 0.00 171 112.50 0.0038
2023-02-14 2022-12-31 13F NEWAMSTERDAM PHARMA *W EXP 11/22/202 N62509117 92,787 92,787 81 0.0017
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.