Duquesne Family Office LLC: NEWAMSTERDAM PHARMA COMPANY (NAMS): Quarterly 13F Position History
As of Q1 2026, Duquesne Family Office LLC reported 3,070,146 shares of NEWAMSTERDAM PHARMA COMPANY (NAMS), worth $98.3M and representing 3.3% of its 13F equity book. The position first appeared in Q3 2024 and has been disclosed across 7 13F-HR filings in Pactolio's tracked window.
- 3,070,146Shares Held (Latest Filing)
- $98.3MReported Market Value (Latest Filing)
- 3.3%Portfolio Weight (% of 13F Equity Book)
- 0Quarter-over-Quarter Share Change
- -$9.4MQuarter-over-Quarter Value Change
- 3,070,146Peak Reported Shares (Historical)
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 7 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q1 2026 | 3,070,146 | 0 | — | $98.3M | 3.3% | $32.0 |
| Q4 2025 | 3,070,146 | +1,146,446 | +59.6% | $107.7M | 2.6% | $35.1 |
| Q3 2025 | 1,923,700 | +1,091,525 | +131.2% | $54.7M | 1.4% | $28.4 |
| Q2 2025 | 832,175 | +31,815 | +4.0% | $15.1M | 0.4% | $18.1 |
| Q1 2025 | 800,360 | +512,825 | +178.4% | $16.4M | 0.5% | $20.5 |
| Q4 2024 | 287,535 | 0 | — | $7.4M | 0.2% | $25.7 |
| Q3 2024 | 287,535 | — | — | $4.8M | 0.2% | $16.6 |
Methodology & FAQ
How This Position History Is Sourced
Each row is one SEC Form 13F-HR filing disclosing this position. Share count, market value, and reported quarter are taken verbatim from the filing; portfolio weight is recomputed against the same filing's total reported equity book. Implied price-per-share is market value divided by shares — a quarter-end mark, not the manager's cost basis. See the full methodology document for the normalization rules.
When did Duquesne Family Office LLC first disclose a NAMS position in 13F-HR filings?
Duquesne Family Office LLC first reported NEWAMSTERDAM PHARMA COMPANY (NAMS) on its 13F-HR filing for the period ending 2024-09-30 (Q3 2024). The position has appeared on 7 reported quarters within Pactolio's tracked window.
What was Duquesne Family Office LLC's most recent quarter-over-quarter share-count change in NAMS?
Duquesne Family Office LLC held the same 3,070,146 shares of NAMS between Q4 2025 and Q1 2026 — the reported share count was unchanged quarter-over-quarter.
Does the implied price-per-share represent Duquesne Family Office LLC's cost basis in NAMS?
No. The implied price-per-share column is the 13F-HR reported market value divided by reported share count on the filing date (end of quarter). It is a quarter-end mark, not a cost basis or transaction price. Use it as a sanity check on the value column, not as an indicator of the manager's entry or exit price.