Daniel Anton De Boer
Insider
First SEC filing: March 18, 2026 · Latest: March 18, 2026
Insider at
Insider transactions
3 buys (P)
0 sells (S)
Net: $853,500
Avg return of open purchases vs now: -3.6%
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| July 31, 2026 | PRQR | P | 200,000 | $1.77 | $354,000 | 500,000 Direct | +66.67% | Acquired | -7.6% (price as of 2026-10-02) |
| July 9, 2026 | PRQR | P | 150,000 | $1.74 | $261,000 | 300,000 Direct | +100.00% | Acquired | -6.0% (price as of 2026-10-02) |
| July 7, 2026 | PRQR | P | 150,000 | $1.59 | $238,500 | 150,000 Direct | · | Acquired | 2.8% (price as of 2026-10-02) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Initial ownership (Form 3) 12 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| March 18, 2026 | PRQR | Share Option (Right to Buy) | 239,717 | Direct |
| March 18, 2026 | PRQR | Share Option (Right to Buy) | 379,285 | Direct |
| March 18, 2026 | PRQR | Share Option (Right to Buy) | 253,192 | Direct |
| March 18, 2026 | PRQR | Share Option (Right to Buy) | 395,561 | Direct |
| March 18, 2026 | PRQR | Share Option (Right to Buy) | 442,279 | Direct |
| March 18, 2026 | PRQR | Share Option (Right to Buy) | 450,051 | Direct |
| March 18, 2026 | PRQR | Share Option (Right to Buy) | 1,200,000 | Direct |
| March 18, 2026 | PRQR | Share Option (Right to Buy) | 442,182 | Direct |
| March 18, 2026 | PRQR | Share Option (Right to Buy) | 479,171 | Direct |
| March 18, 2026 | PRQR | Share Option (Right to Buy) | 463,587 | Direct |
| March 18, 2026 | PRQR | Share Option (Right to Buy) | 1,400,000 | Direct |
| March 18, 2026 | PRQR | Share Option (Right to Buy) | 595,644 | Direct |