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

Composite Decision Signal · PASS (LOW BASE-RATE EDGE) Conviction Score: 32/100 · Filer 90d Win Rate: 0% · Hist. 90d Edge: +0.0%

Filer track record (3 filings): 0% 90d win rate, +0.0% 90d edge
1 independent officer/director Code-P buyer ($261,000 in ±30d)
Moderate short days-to-cover (3.0 DTC)

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

5 13D/G filings on this issuer

4 other filings besides this one

Filer Track Record

7 filings by this filer

6 other filings in the data moat

Short Interest · settle 2026-10-15

DTC 3.02

2,909,335 shares short · +1.5% vs prior

Form 4 Insider Transactions · last 365d

Date	Insider	Role	Type	Shares	Price	Value
2026-07-09	de Boer Daniel Anton	director, officer	Buy	150,000	$1.74	$261K

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

Filed	Form	Filer	Stake	Shares
2026-07-29	SCHEDULE 13G	Aberdeen Group plc	—	—	view →
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.

Filed	Form	Issuer	Stake	Shares
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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