🕵️ 4D Molecular Therapeutics, Inc. ($FDMT)
SEC insider & ownership activity, last 12 months · CIK 1650648 · every row links its SEC filing
Insider sell value was withheld pending verification over the last 12 months. 3 planned sales are pending, the largest $549K (David Kirn). No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 3 sellers, value withheld pending verification (25 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Kirn David | 0 | – | 10 | $4.3M | Sep 14, 2026 |
| Bizily Scott | 0 | – | 11 | value withheld pending verification | Sep 1, 2026 |
| Gupta Ashoo | 0 | – | 4 | $7K | Mar 20, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Janus Henderson Group PLC | 10.3% | 13G | Apr 7, 2026 | filing ↗ | |
| BVF Partners L P/IL | 10.0% | 13G | May 15, 2026 | filing ↗ | |
| BVF INC/IL | 10.0% | 13G | May 15, 2026 | filing ↗ | |
| Mark N. Lampert | 10.0% | 13G | May 15, 2026 | filing ↗ | |
| RA Capital Management, L.P. | 9.9% | 13G | May 15, 2026 | filing ↗ | |
| Peter Kolchinsky | 9.9% | 13G | May 15, 2026 | filing ↗ | |
| Rajeev Shah | 9.9% | 13G | May 15, 2026 | filing ↗ | |
| RA Capital Healthcare Fund, L.P. | 9.9% | 13G | May 15, 2026 | filing ↗ | |
| BVF GP Holdings LLC | 9.3% | 13G | May 15, 2026 | filing ↗ | |
| The Goldman Sachs Group, Inc. | 7.5% | 13G | Feb 9, 2026 | filing ↗ | |
| Goldman Sachs & Co. LLC | 7.5% | 13G | Feb 9, 2026 | filing ↗ | |
| Biotechnology Value Fund L P | 7.3% | 13G | May 15, 2026 | filing ↗ | |
| BVF I GP LLC | 7.3% | 13G | May 15, 2026 | filing ↗ | |
| BlackRock, Inc. | 6.6% | 13G | Oct 17, 2025 | filing ↗ | |
| NOVO Holdings A/S | 6.4% | 13G | Feb 17, 2026 | filing ↗ | |
| State Street Corporation | 5.3% | 13G | May 12, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| David Kirn | $803K | Sep 14, 2026 | filing ↗ |
| David Kirn | $1.2M | Aug 19, 2026 | filing ↗ |
| Scott Bizily | $80K | Aug 17, 2026 | filing ↗ |
| Scott Bizily | $19K | Aug 13, 2026 | filing ↗ |
| David Kirn | $275K | Aug 4, 2026 | filing ↗ |
| David Kirn | $125K | Aug 3, 2026 | filing ↗ |
| David Kirn | $194K | Jul 10, 2026 | filing ↗ |
| David Kirn | $549K | Jul 9, 2026 | filing ↗ |
| Scott Bizily | $85K | Jun 30, 2026 | filing ↗ |
| Scott Bizily | $102K | Jun 23, 2026 | filing ↗ |
| David Kirn | $1.2M | Jun 22, 2026 | filing ↗ |
| David Kirn | $19K | Jun 1, 2026 | filing ↗ |
| Scott Bizily | $18K | Dec 16, 2025 | filing ↗ |
| Scott Bizily | $18K | Nov 17, 2025 | filing ↗ |
| Scott Bizily | $18K | Oct 24, 2025 | filing ↗ |
| Scott Bizily | $54K | Sep 23, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Earnings (2.02) | Aug 13, 2026 | filing ↗ |
| Other events (8.01) | Jul 18, 2026 | filing ↗ |
| Material agreement (1.01) | Jun 24, 2026 | filing ↗ |
| New financial obligation (2.03) | Jun 24, 2026 | filing ↗ |
| Shareholder vote (5.07) | Jun 17, 2026 | filing ↗ |
| Earnings (2.02) | May 7, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 7, 2026 | filing ↗ |
| Officer/director changes (5.02) | Mar 25, 2026 | filing ↗ |
| Earnings (2.02) | Mar 18, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 18, 2026 | filing ↗ |
| Unregistered equity sale (3.02) | Jan 22, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 22, 2026 | filing ↗ |
| Earnings (2.02) | Dec 31, 2025 | filing ↗ |
| Officer/director changes (5.02) | Dec 31, 2025 | filing ↗ |
| Other events (8.01) | Dec 10, 2025 | filing ↗ |
| Officer/director changes (5.02) | Nov 17, 2025 | filing ↗ |
| Earnings (2.02) | Nov 10, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 10, 2025 | filing ↗ |
| Other events (8.01) | Nov 6, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 6, 2025 | filing ↗ |
| Earnings (2.02) | Nov 6, 2025 | filing ↗ |
| Other events (8.01) | Nov 6, 2025 | filing ↗ |
| Material agreement (1.01) | Oct 31, 2025 | filing ↗ |
| Officer/director changes (5.02) | Sep 30, 2025 | filing ↗ |
| Charter/bylaw changes (5.03) | Sep 30, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 30, 2025 | filing ↗ |