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SCHEDULE 13D/A Filed 2026-09-22 Event 2026-09-18 SEC 0001231919-26-001215 →

Frazier Life Sciences X, L.P. → NEWAMSTERDAM PHARMA COMPANY N.V. NAMSW

Stake: 8.70% Shares: 7,329,857 CUSIP: N62509109 Class: Ordinary Shares, nominal value EUR0.12 per share

Item 4 — Purpose of Transaction

Not extracted from this filing — typically because it's an amendment (13D/A) and Item 4 is unchanged from the parent filing. Read the raw SEC filing →

Cross-References

Insider Activity (last 365d)
0 transactions
0 buys · 0 sales · 0 awards/exercises
Issuer Cluster
6 13D/G filings on this issuer
5 other filings besides this one
Filer Track Record
1 filings by this filer
0 other filings in the data moat
Short Interest · settle 2026-09-30
DTC 1.00
42 shares short · +2.4% vs prior

Institutional Consensus · 2026-06-30

Held by elite portfolio managers
2 holders · $142.56M
Duquesne Family OfficeViking Global

Other 13D/G Filings on NEWAMSTERDAM PHARMA COMPANY N.V.

FiledFormFilerStakeShares
2026-05-14 SCHEDULE 13D/A BCLS II Investco, LP — 2,059,896 view →
2025-11-07 SCHEDULE BCLS II Investco, LP 9.99% 11,422,504 view →
2025-09-30 SCHEDULE Forbion Capital Fund IV Cooperatief U.A. 8.30% 9,316,914 view →
2023-07-07 SC Forbion Capital Fund IV Cooperatief U.A. — — view →
2023-06-13 SC BCLS II Investco, LP — — view →

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