4D Molecular Therapeutics Inc (FDMT)
Insider transactions
A complete record of Form 4 filings tracking every share acquisition and disposal by executives, directors, and senior officers. Filterable by date range and transaction type, the table exposes the direct market actions of those with the deepest knowledge of a company's operations — providing a factual, data-driven signal of internal conviction that complements traditional fundamental and technical analysis.
Transaction date | Executive | Executive Title | Security Type | Acquisition / Disposal | Shares | Share price |
|---|---|---|---|---|---|---|
| Sep 14, 2026 | KIRN, DAVID | Director, See Remarks | Common Stock | Disposal | 58,333 | 13.903 |
| Sep 1, 2026 | BIZILY, SCOTT | Chief Legal Officer | Stock Option (Right to Buy) | Disposal | 584 | 0 |
| Sep 1, 2026 | BIZILY, SCOTT | Chief Legal Officer | Common Stock | Acquisition | 584 | 6.49 |
| Sep 1, 2026 | BIZILY, SCOTT | Chief Legal Officer | Common Stock | Disposal | 584 | 14 |
| Aug 19, 2026 | KIRN, DAVID | Director, See Remarks | Stock Option (Right to Buy) | Disposal | 50,000 | 0 |
| Aug 19, 2026 | KIRN, DAVID | Director, See Remarks | Common Stock | Disposal | 25,927 | 16.417 |
| Aug 19, 2026 | KIRN, DAVID | Director, See Remarks | Common Stock | Disposal | 43,149 | 15.357 |
| Aug 19, 2026 | KIRN, DAVID | Director, See Remarks | Common Stock | Acquisition | 50,000 | 4.14 |
| Aug 17, 2026 | BIZILY, SCOTT | Chief Legal Officer | Common Stock | Disposal | 1,635 | 12.2 |
| Aug 17, 2026 | BIZILY, SCOTT | Chief Legal Officer | Stock Option (Right to Buy) | Disposal | 1,635 | 0 |
| Aug 17, 2026 | BIZILY, SCOTT | Chief Legal Officer | Common Stock | Acquisition | 1,635 | 4.14 |
| Aug 13, 2026 | BIZILY, SCOTT | Chief Legal Officer | Common Stock | Acquisition | 1,635 | 4.14 |
| Aug 13, 2026 | BIZILY, SCOTT | Chief Legal Officer | Stock Option (Right to Buy) | Disposal | 1,635 | 0 |
| Aug 13, 2026 | BIZILY, SCOTT | Chief Legal Officer | Common Stock | Disposal | 1,635 | 12 |
| Aug 4, 2026 | KIRN, DAVID | Director, See Remarks | Common Stock | Disposal | 26,842 | 10.23 |
| Aug 3, 2026 | KIRN, DAVID | Director, See Remarks | Common Stock | Disposal | 12,415 | 10.046 |
| Jul 10, 2026 | KIRN, DAVID | Director, See Remarks | Common Stock | Disposal | 15,283 | 12.011 |
| Jul 10, 2026 | KIRN, DAVID | Director, See Remarks | Common Stock | Disposal | 442 | 12.836 |
| Jul 9, 2026 | KIRN, DAVID | Director, See Remarks | Common Stock | Disposal | 42,608 | 12.866 |
| Jun 30, 2026 | BIZILY, SCOTT | Chief Legal Officer | Stock Option (Right to Buy) | Disposal | 5,752 | 0 |
| Jun 30, 2026 | BIZILY, SCOTT | Chief Legal Officer | Common Stock | Disposal | 6,566 | 14 |
| Jun 30, 2026 | BIZILY, SCOTT | Chief Legal Officer | Stock Option (Right to Buy) | Disposal | 814 | 0 |
| Jun 30, 2026 | BIZILY, SCOTT | Chief Legal Officer | Common Stock | Acquisition | 5,752 | 6.49 |
| Jun 30, 2026 | BIZILY, SCOTT | Chief Legal Officer | Common Stock | Acquisition | 814 | 4.14 |
| Jun 23, 2026 | BIZILY, SCOTT | Chief Legal Officer | Common Stock | Acquisition | 9,810 | 4.14 |
| Jun 23, 2026 | BIZILY, SCOTT | Chief Legal Officer | Common Stock | Disposal | 9,810 | 12 |
| Jun 23, 2026 | BIZILY, SCOTT | Chief Legal Officer | Stock Option (Right to Buy) | Disposal | 9,810 | 0 |
| Jun 22, 2026 | KIRN, DAVID | Director, See Remarks | Common Stock | Disposal | 114,746 | 10.465 |
| Jun 17, 2026 | CHACKO, JACOB | Director | Stock Option (Right to Buy) | Acquisition | 50,000 | 0 |
| Jun 17, 2026 | TOMASELLO, SHAWN | Director | Stock Option (Right to Buy) | Acquisition | 50,000 | 0 |
| Jun 17, 2026 | GRAY, SUSANNAH | Director | Stock Option (Right to Buy) | Acquisition | 50,000 | 0 |
| Jun 17, 2026 | MILLER-RICH, NANCY | Director | Stock Option (Right to Buy) | Acquisition | 50,000 | 0 |
| Jun 17, 2026 | THEUER, CHARLES | Director | Stock Option (Right to Buy) | Acquisition | 50,000 | 0 |
| Jun 17, 2026 | MILLIGAN, JOHN F | Director | Stock Option (Right to Buy) | Acquisition | 75,000 | 0 |
| Jun 17, 2026 | SBLENDORIO, GLENN | Director | Stock Option (Right to Buy) | Acquisition | 50,000 | 0 |
| Jun 1, 2026 | KIRN, DAVID | Director, See Remarks | Common Stock | Disposal | 1,922 | 10.02 |
| Mar 25, 2026 | KIRN, DAVID | Director, Chief Executive Officer | Stock Option (Right to Buy) | Acquisition | 750,000 | 0 |
| Mar 25, 2026 | BIZILY, SCOTT | Chief Legal Officer | Stock Option (Right to Buy) | Acquisition | 217,000 | 0 |
| Mar 25, 2026 | SIMMS, CHRISTOPHER PAUL | See Remarks | Stock Option (Right to Buy) | Acquisition | 219,000 | 0 |
| Mar 20, 2026 | GUPTA, ASHOO | VP, Finance and Controller | Common Stock | Acquisition | 221 | |
| Mar 20, 2026 | GUPTA, ASHOO | VP, Finance and Controller | Common Stock | Acquisition | 865 | |
| Mar 20, 2026 | GUPTA, ASHOO | VP, Finance and Controller | Common Stock | Disposal | 310 | 8.61 |
| Mar 20, 2026 | GUPTA, ASHOO | VP, Finance and Controller | Common Stock | Disposal | 80 | 8.61 |
| Mar 20, 2026 | GUPTA, ASHOO | VP, Finance and Controller | Restricted Stock Units | Disposal | 221 | 0 |
| Mar 20, 2026 | GUPTA, ASHOO | VP, Finance and Controller | Restricted Stock Units | Disposal | 865 | 0 |
| Jan 5, 2026 | SBLENDORIO, GLENN | Director | Stock Option (Right to Buy) | Acquisition | 45,000 | 0 |
| Dec 20, 2025 | GUPTA, ASHOO | VP, Finance and Controller | Common Stock | Disposal | 79 | 8.68 |
| Dec 20, 2025 | GUPTA, ASHOO | VP, Finance and Controller | Common Stock | Disposal | 310 | 8.68 |
| Dec 20, 2025 | GUPTA, ASHOO | VP, Finance and Controller | Restricted Stock Units | Disposal | 220 | 0 |
| Dec 20, 2025 | GUPTA, ASHOO | VP, Finance and Controller | Restricted Stock Units | Disposal | 866 | 0 |
| Dec 20, 2025 | GUPTA, ASHOO | VP, Finance and Controller | Common Stock | Acquisition | 866 | |
| Dec 20, 2025 | GUPTA, ASHOO | VP, Finance and Controller | Common Stock | Acquisition | 220 | |
| Dec 16, 2025 | BIZILY, SCOTT | Chief Legal Officer | Common Stock | Acquisition | 1,635 | 4.14 |
| Dec 16, 2025 | BIZILY, SCOTT | Chief Legal Officer | Common Stock | Disposal | 1,635 | 10.9 |
| Dec 16, 2025 | BIZILY, SCOTT | Chief Legal Officer | Stock Option (Right to Buy) | Disposal | 1,635 | 0 |
| Dec 12, 2025 | THEUER, CHARLES | Director | Stock Option (Right to Buy) | Disposal | 9,333 | 0 |
| Dec 12, 2025 | THEUER, CHARLES | Director | Common Stock | Acquisition | 9,333 | 1.14 |
| Dec 9, 2025 | HUMER, KRISTIAN | Chief Financial Officer | Stock Option (Right to Buy) | Acquisition | 480,000 | 0 |
| Nov 17, 2025 | BIZILY, SCOTT | Chief Legal Officer | Stock Option (Right to Buy) | Disposal | 1,635 | 0 |
| Nov 17, 2025 | BIZILY, SCOTT | Chief Legal Officer | Common Stock | Disposal | 1,635 | 10.59 |
| Nov 17, 2025 | BIZILY, SCOTT | Chief Legal Officer | Common Stock | Acquisition | 1,635 | 4.14 |
| Oct 24, 2025 | BIZILY, SCOTT | Chief Legal Officer | Common Stock | Acquisition | 1,084 | 6.49 |
| Oct 24, 2025 | BIZILY, SCOTT | Chief Legal Officer | Stock Option (Right to Buy) | Disposal | 1,084 | 0 |
| Oct 24, 2025 | BIZILY, SCOTT | Chief Legal Officer | Common Stock | Disposal | 2,678 | 12 |
| Oct 16, 2025 | BIZILY, SCOTT | Chief Legal Officer | Common Stock | Acquisition | 1,635 | 4.14 |
| Oct 16, 2025 | BIZILY, SCOTT | Chief Legal Officer | Common Stock | Disposal | 1,635 | 10.17 |
| Oct 16, 2025 | BIZILY, SCOTT | Chief Legal Officer | Stock Option (Right to Buy) | Disposal | 1,635 | 0 |
| Oct 9, 2025 | BIZILY, SCOTT | Chief Legal Officer | Common Stock | Disposal | 2,408 | 10 |