4D Molecular Therapeutics, Inc. insider trading
FDMT$13.67-0.17 (-1.23%)
“Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise.”
Insider Trading vs Stock Price
Insider Trading vs Stock Price data
Showing the 1Y range: Oct 2, 2025 to Oct 2, 2026. Price (+57.7%). 0 insider transactions plotted in this window as 0 markers; nearby trades of the same kind are grouped.
| Date | Category | Person | Role | Action | Amount | Change in holding |
|---|
Open market purchase
Open market sellNet dollar flow · Buy / Sell balance
PremiumQ2 '25Q3 '25Q4 '25Q1 '26Q2 '26Q3 '26
Unlock quarterly net flowKey players
- DKDavid Kirn1.5418%
- AGAshoo Gupta0.0945%
- CTCharles Theuer0.0837%
- SBScott Bizily0.0173%
- RCRa Capital Management, L.P.Not reported
- BIBVF I GP LLCNot reported
AI Activity Analysis
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Insider activity
Fromto
| Company | Insider / role | Action | ΔOwn | Avg price | Amount | ||
|---|---|---|---|---|---|---|---|
| FDMT | David Kirn | Open market sell$811K | -7.1% | $13.90 | $811K | Sep 14, 2026 | Sep 16, 2026 |
| FDMT | David Kirn | Open market sell$275K | -3.1% | $10.23 | $275K | Aug 4, 2026 | Aug 5, 2026 |
| FDMT | David Kirn | Open market sell$125K | -1.4% | $10.05 | $125K | Aug 3, 2026 | Aug 4, 2026 |
| FDMT | David Kirn | Open market sell$5.67K | -0.1% | $12.84 | $5.67K | Jul 10, 2026 | Jul 14, 2026 |
| FDMT | David Kirn | Open market sell$184K | -1.7% | $12.01 | $184K | Jul 10, 2026 | Jul 14, 2026 |
| FDMT | David Kirn | Open market sell$548K | -4.5% | $12.87 | $548K | Jul 9, 2026 | Jul 14, 2026 |
| FDMT | David Kirn | Open market sell$1.2M | -10.9% | $10.47 | $1.2M | Jun 22, 2026 | Jun 23, 2026 |
| FDMT | David Kirn | Open market sell$19.3K | -0.2% | $10.02 | $19.3K | Jun 1, 2026 | Jun 2, 2026 |
| FDMT | Scott Bizily | Open market sell$24.1K | -31.7% | $10.00 | $24.1K | Oct 9, 2025 | Oct 14, 2025 |