David Kirn is CEO at 4D Molecular Therapeutics, Inc. (FDMT). They have made 4 open-market trades across 1 company since 2022, most recently 2026-10-05.
CIK 0001834021
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 4 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| FDMT | 709,153 | $8.6M |
Shares reported on the most recent Form 4, priced at the 2026-10-07 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| FDMT | SELL · 10b5-1 | 2026-10-05 | 2026-10-07 | $12.92 | $754K | — | — | — |
| FDMT | SELL · 10b5-1 | 2026-09-14 | 2026-09-16 | $13.90 | $811K | +4.6% | -12.8% | — |
| FDMT | SELL · 10b5-1 | 2026-08-19 | 2026-08-21 | $15.75 | $1.1M | -4.6% | -2.7% | — |
| FDMT | SELL · 10b5-1 | 2026-08-04 | 2026-08-05 | $10.23 | $275K | +39.2% | +43.1% | — |
| FDMT | SELL · 10b5-1 | 2026-08-03 | 2026-08-04 | $10.05 | $125K | +19.0% | +43.0% | — |
| FDMT | SELL · 10b5-1 | 2026-07-09 | 2026-07-14 | $12.64 | $737K | -11.9% | +1.9% | +13.6% |
| FDMT | SELL · 10b5-1 | 2026-06-22 | 2026-06-23 | $10.47 | $1.2M | +8.9% | -11.2% | +30.4% |
| FDMT | SELL · 10b5-1 | 2026-06-01 | 2026-06-02 | $10.02 | $19K | -5.6% | +38.9% | +50.6% |
| FDMT | SELL · 10b5-1 | 2024-07-10 | 2024-07-12 | $22.49 | $581K | -34.5% | -45.3% | -68.2% |
| FDMT | SELL · 10b5-1 | 2024-06-24 | 2024-06-26 | $23.10 | $299K | +8.0% | -12.7% | -45.3% |
| FDMT | SELL · 10b5-1 | 2024-02-08 | 2024-02-12 | $27.13 | $5.0M | +0.3% | +8.5% | -5.6% |
| FDMT | SELL | 2024-01-23 | 2024-01-25 | $18.41 | $210K | +72.6% | +50.7% | +26.0% |
| FDMT | SELL · 10b5-1 | 2023-12-15 | 2024-01-08 | $19.15 | $3.9M | -14.3% | +42.1% | +44.6% |
| FDMT | SELL | 2023-02-21 | 2023-02-23 | $20.59 | $1.4M | -1.9% | -7.6% | -2.4% |
| FDMT | SELL | 2023-01-19 | 2023-01-23 | $20.10 | $785K | +16.6% | +2.4% | +7.8% |
| FDMT | SELL | 2022-12-15 | 2022-12-19 | $23.22 | $4.0M | +8.0% | +1.3% | -14.9% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.