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SCHEDULE Filed 2025-05-19 Event 2025-05-15 SEC 0001213900-25-045527 →

EcoR1 Capital, LLC GALAPAGOS NV GLPGF

Stake: 11.84% Shares: 7,803,202 CUSIP: 36315X101 Class: Ordinary Shares, no par value

Item 4 — Purpose of Transaction

No amendment to this Item is being made.

Cross-References

Insider Activity (last 365d)
0 transactions
0 buys · 0 sales · 0 awards/exercises
Issuer Cluster
5 13D/G filings on this issuer
4 other filings besides this one
Filer Track Record
13 filings by this filer
12 other filings in the data moat
Short Interest · settle 2026-07-15
DTC 999.99
588,284 shares short · +16.1% vs prior

Institutional Consensus · 2026-03-31

Held by elite portfolio managers
3 holders · $36.99M
DME Capital ManagementGreenlight CapitalPoint72 Asset Mgmt

Post-Filing Returns · since 2025-05-15 on GLPGF

+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 28.08 on closest trading day on/after 2025-05-15. Source: Yahoo Finance daily adj_close (split + dividend adjusted).

Other 13D/G Filings on GALAPAGOS NV

FiledFormFilerStakeShares
2026-06-23 SCHEDULE 13G Madison Avenue Partners, LP view →
2025-01-10 SCHEDULE GILEAD SCIENCES, INC. 29.90% 20,981,010 view →
2024-10-08 SC EcoR1 Capital, LLC view →
2019-08-29 SC GILEAD SCIENCES INC view →

Other Filings by EcoR1 Capital, LLC

FiledFormIssuerStakeShares
2026-07-20 SCHEDULE 13G Alto Neuroscience, Inc. view →
2026-06-25 SCHEDULE 13G Fulcrum Therapeutics, Inc. FULC view →
2026-06-25 SCHEDULE 13G Fulcrum Therapeutics, Inc. FULC view →
2026-06-16 SCHEDULE 13G Eloxx Pharmaceuticals, Inc. ELOX view →
2025-03-17 SCHEDULE Zymeworks Inc. ZYME 24.20% 16,858,418 view →
2025-02-18 SCHEDULE Zymeworks Inc. ZYME 22.80% 15,720,161 view →
2025-01-13 SCHEDULE Zymeworks Inc. ZYME 22.40% 15,411,078 view →
2025-01-03 SCHEDULE PROTHENA CORP PUBLIC LTD CO PRTA 21.50% 11,584,280 view →
2024-10-08 SC GALAPAGOS NV GLPGF view →
2022-01-14 SC PROTHENA CORP PUBLIC LTD CO PRTA view →
2021-05-11 SC ANAPTYSBIO, INC ANABV view →
2021-04-13 SC ANAPTYSBIO, INC ANABV view →

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