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SCHEDULE 13D/A Filed 2026-07-29 Event 2026-07-27 SEC 0001104659-26-088126 →

VAN HERK INVESTMENTS B.V. ProQR Therapeutics N.V. PRQR

Stake: Shares: 15,384,250 Class: Ordinary Shares, nominal value Euro 0.04 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)
1 transaction
1 buys · 0 sales · 0 awards/exercises
Issuer Cluster
4 13D/G filings on this issuer
3 other filings besides this one
Filer Track Record
7 filings by this filer
6 other filings in the data moat
Short Interest · settle 2026-07-15
DTC 1.75
2,308,954 shares short · +92.5% vs prior

Form 4 Insider Transactions · last 365d

DateInsiderRoleTypeSharesPriceValue
2026-07-09 de Boer Daniel Anton director, officer Buy 150,000 $1.74 $261K

Other 13D/G Filings on ProQR Therapeutics N.V.

FiledFormFilerStakeShares
2026-06-30 SCHEDULE 13D/A VAN HERK INVESTMENTS B.V. 15,384,250 view →
2026-06-03 SCHEDULE 13D/A VAN HERK INVESTMENTS B.V. 14.60% 15,384,250 view →
2025-09-30 SCHEDULE VAN HERK INVESTMENTS B.V. 13.60% 14,329,690 view →

Other Filings by VAN HERK INVESTMENTS B.V.

FiledFormIssuerStakeShares
2026-06-30 SCHEDULE 13D/A ProQR Therapeutics N.V. PRQR 15,384,250 view →
2026-06-03 SCHEDULE 13D/A ProQR Therapeutics N.V. PRQR 14.60% 15,384,250 view →
2025-09-30 SCHEDULE ProQR Therapeutics N.V. PRQR 13.60% 14,329,690 view →
2018-03-20 SC Ablynx NV view →
2018-03-13 SC Ablynx NV view →
2018-02-27 SC Ablynx NV view →

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