Follow the people · Insider
Daniel Anton de Boer
Daniel Anton de Boer files insider transactions with the SEC as a chief executive officer of ProQR Therapeutics (PRQR). We hold 3 disclosed purchases and sales filed since 8 July 2026, 3 of them in the last 90 days.
- Files forPRQR
- Disclosed buys and sells3 in all, 3 in the last 90 days
- Last disclosure3 August 2026
Positions held
1 post we hold — a term names its own dates; a run of filings only says when they filed- Filed 7 July 2026 — 31 July 2026Chief Executive Officer · ProQR Therapeutics (PRQR)3 Form 4 lines · source: SEC Form 4
Everything they disclosed
3 entries, newest first — one per disclosure report, one per Form 4 line- ▲ bought on the open market 200,000 shares of ProQR TherapeuticsSEC Form 43 August 2026Ordinary Shares · traded 31 July 2026 · filed 3 August 2026
- ▲ bought on the open market 150,000 shares of ProQR TherapeuticsSEC Form 413 July 2026Ordinary Shares · traded 9 July 2026 · filed 13 July 2026
- ▲ bought on the open market 150,000 shares of ProQR TherapeuticsSEC Form 48 July 2026Ordinary Shares · traded 7 July 2026 · filed 8 July 2026
Positions come from the unitedstates/congress-legislators roster, the Office of Government Ethics and the SEC’s Form 4 index. Every disclosed line names its own source and links the document the government published; we print what the filing says and never a price we did not read from it. Headlines and links come from the GDELT Global Knowledge Graph — the story stays with the publisher. The portrait, where we have one, is the public-domain Congressional Bioguide photograph.