PRQR · Insider trading · 13F holders · Congress trades
ProQR Therapeutics N.V. (PRQR)
Who is buying and selling PRQR: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 11
- Insider buys, 90 days
- $354K
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 0
PRQR at a glance
- Between Aug 1, 2026 and Oct 29, 2026, 1 PRQR insider filed 1 open-market purchase worth $354K on SEC Form 4.
- 11 13F filers hold PRQR among their 50 largest positions, worth $34.7M combined. The biggest bets by portfolio weight are Privium Fund Management B.V. (1.9%), Heights Capital Management, Inc (1.2%) and Ikarian Capital, LLC (1.0%). In their latest 13Fs, 1 manager opened a new position and 1 added to one.
- No member of Congress has disclosed a trade in PRQR.
- PRQR last closed at $1.44 on Oct 29, 2026.
PRQR insider trading
Between Aug 1, 2026 and Oct 29, 2026, 1 PRQR insider filed 1 open-market purchase worth $354K on SEC Form 4.
| Filed | Insider | Role | Trade | Shares | Price | Value | Form 4 |
|---|---|---|---|---|---|---|---|
| Aug 3, 2026 | de Boer Daniel Anton | Chief Executive Officer, Director | Buy | 200,000 | $1.77 | $354K | SEC |
Who owns PRQR? Hedge funds and superinvestors
11 13F filers hold PRQR among their 50 largest positions, worth $34.7M combined. The biggest bets by portfolio weight are Privium Fund Management B.V. (1.9%), Heights Capital Management, Inc (1.2%) and Ikarian Capital, LLC (1.0%). In their latest 13Fs, 1 manager opened a new position and 1 added to one.
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Privium Fund Management B.V.Asset manager | 1.9% | $10.3M | 5,520,024 | +1.0% shares | Q2 2026 |
| Ikarian Capital, LLCHedge fund | 1.0% | $6.4M | 3,425,930 | — | Q2 2026 |
| Heights Capital Management, IncAsset manager | 1.2% | $5.1M | 2,762,430 | — | Q2 2026 |
| Kynam Capital Management, LPHedge fund | 0.2% | $2.9M | 1,566,317 | +0.0% shares | Q2 2026 |
| DAFNA Capital Management LLCHedge fund | 0.5% | $2.8M | 1,530,361 | -2.4% shares | Q2 2026 |
| Squadron Capital Management LLCHedge fund | 1.0% | $2.8M | 1,511,496 | New | Q2 2026 |
| Diadema Partners LPHedge fund | 0.7% | $1.7M | 926,016 | — | Q2 2026 |
| M28 Capital Management LPHedge fund | 2.4% | $1.1M | 599,793 | +0.0% shares | Q2 2026 |
| Lynx1 Capital Management LPHedge fund | 0.1% | $970K | 521,413 | +661.3% shares | Q2 2026 |
| Monaco Asset Management SAMAsset manager | 0.2% | $455K | 244,487 | — | Q2 2026 |
| Velan Capital Investment Management LPHedge fund | 0.1% | $84K | 45,000 | +0.0% shares | Q2 2026 |
Each manager counts with its latest 13F (Q2 2026: 11). Screen PRQR in the grand portfolio →
PRQR stock trades by members of Congress
No member of Congress has disclosed a trade in PRQR.
PRQR questions and answers
Are insiders buying PRQR stock?
Between Aug 1, 2026 and Oct 29, 2026, 1 PRQR insider filed 1 open-market purchase worth $354K on SEC Form 4.
Which hedge funds own PRQR?
11 13F filers hold PRQR among their 50 largest positions, worth $34.7M combined. The biggest bets by portfolio weight are Privium Fund Management B.V. (1.9%), Heights Capital Management, Inc (1.2%) and Ikarian Capital, LLC (1.0%). In their latest 13Fs, 1 manager opened a new position and 1 added to one.
Has Congress traded PRQR?
No member of Congress has disclosed a trade in PRQR.
Who is the largest holder of PRQR?
Among 13F filers, Privium Fund Management B.V. reports the largest PRQR position, $10.3M (5,520,024 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Privium Fund Management B.V.'s: 1.9% of its portfolio.
Cite or share this
Free to use with a link back. The data updates every filing day.