13D·WATCH Activist + Insider Intelligence Live feed Blog About Pricing
SCHEDULE Filed 2025-09-30 Event 2025-09-26 SEC 0001193125-25-225170 →

Forbion Capital Fund IV Cooperatief U.A. → NewAmsterdam Pharma Co N.V. NAMSW

Stake: 8.30% Shares: 9,316,914 CUSIP: N62509109 Class: Ordinary Shares, Nominal value 0.12 per share
Composite Decision Signal · PASS (LOW BASE-RATE EDGE) Conviction Score: 18/100 · Filer 90d Win Rate: 0% · Hist. 90d Edge: +0.0%
  • Passive Schedule 13G filer baseline
  • High conviction ownership stake (8.3%)
  • Held by 2 tracked 13F institutional managers

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
2 filings by this filer
1 other filing in the data moat
Short Interest · settle 2026-10-15
DTC 1.00
42 shares short · 0.0% vs prior

Institutional Consensus · 2026-06-30

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

Post-Filing Returns · since 2025-09-26 on NAMSW

+1 day
0.0%
+5 days
0.0%
+30 days
0.0%
+60 days
0.0%
+90 days
0.0%
+180 days
0.0%

Anchor price 24.89 on closest trading day on/after 2025-09-26. Source: Yahoo Finance daily adj_close (split + dividend adjusted).

Other 13D/G Filings on NewAmsterdam Pharma Co N.V.

FiledFormFilerStakeShares
2026-09-22 SCHEDULE 13D/A Frazier Life Sciences X, L.P. 8.70% 7,329,857 view →
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 →
2023-07-07 SC Forbion Capital Fund IV Cooperatief U.A. — — view →
2023-06-13 SC BCLS II Investco, LP — — view →

Other Filings by Forbion Capital Fund IV Cooperatief U.A.

FiledFormIssuerStakeShares
2023-07-07 SC NewAmsterdam Pharma Co N.V. NAMSW — — view →

Want this depth on every filing the moment it hits SEC EDGAR?

Free $0 (48h-delayed alerts) · Individual $49/mo (real-time) · Team & API $199/mo · Enterprise.

See pricing →