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ISSUER PROFILE · CIK 0001936258 · CUSIP N62509109

NewAmsterdam Pharma Company N.V.NAMSW

5 13D/G filings 2 distinct filers 0 insider transactions (365d)

Post-Filing Returns · across 2 activist filings on this issuer

Median 30d
avg —
Median 60d
avg —
Median 90d
avg —
Median 180d
avg —

Returns measured from each activist filing's date_of_event, split + dividend adjusted via Yahoo Finance.

Cross-Reference Snapshot

Activist filings
5
1 SCHEDULE 13D/A · 2 SCHEDULE · 2 SC
Distinct filers
2
multi-activist cluster
Insiders (365d)
0
0 buys · 0 sales
Latest short DTC
1.00
as of 2026-05-29

Institutional Consensus · 2026-03-31

Held by elite portfolio managers
2 holders · $134.65M
Duquesne Family OfficeViking Global

13D/G Filings Timeline · 5 total

FiledFormFilerStakeSharesIntent
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 →

FINRA Short Interest History

SettlementShort InterestDays to Cover% Δ vs prior
2026-05-29 71 1.00 +69.0%
2026-05-15 42 1.00 0.0%
2026-04-30 42 1.00 0.0%
2026-04-15 42 1.00 +2.4%
2026-03-31 41 1.00 0.0%
2026-03-13 41 1.00 0.0%
2026-02-27 41 1.00 -2.4%
2026-02-13 42 1.00 +2.4%
2026-01-30 41 1.00 -83.2%
2026-01-15 244 1.03 -50.5%
2025-12-31 493 1.00 -73.5%
2025-12-15 1,861 5.04 -30.4%

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