FDMT insider buying and SEC filings, explained
4D Molecular Therapeutics, Inc. · CIK 1650648
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Insider activity in the last 12 months
Bought
$0
Insiders who bought
0
Sold (not marked 10b5-1)
$0
Planned sales (10b5-1)
$5.3M
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Oct 16, 2026 | Planned (10b5-1) | Scott Bizily (Chief Legal Officer) sold 1,635 shares at $12.84 ($21K), marked as a 10b5-1 plan trade. Holdings down 16% to 8,617 shares. | SEC filing Filed Oct 20, 2026, 4:56 PM ET |
| Oct 5, 2026 | Planned (10b5-1) | David Kirn (CEO and Director) sold 58,333 shares at about $12.92 ($754K), marked as a 10b5-1 plan trade. Holdings down 8% to 709,153 shares. | SEC filing Filed Oct 7, 2026, 5:11 PM ET |
| Sep 16, 2026 | Planned (10b5-1) | Scott Bizily (Chief Legal Officer) sold 1,635 shares at $13.65 ($22K), marked as a 10b5-1 plan trade. Holdings down 16% to 8,617 shares. | SEC filing Filed Sep 22, 2026 |
| Sep 14, 2026 | Planned (10b5-1) | David Kirn (CEO and Director) sold 58,333 shares at about $13.90 ($811K), marked as a 10b5-1 plan trade. Holdings down 7% to 767,486 shares. | SEC filing Filed Sep 16, 2026 |
| Sep 1, 2026 | Planned (10b5-1) | Scott Bizily (Chief Legal Officer) sold 584 shares at $14.00 ($8K), marked as a 10b5-1 plan trade. Holdings down 6% to 8,617 shares. | SEC filing Filed Sep 3, 2026 |
| Aug 19, 2026 | Planned (10b5-1) | David Kirn (CEO and Director) sold 69,076 shares at about $15.76 ($1.1M), marked as a 10b5-1 plan trade. Holdings down 8% to 825,819 shares. | SEC filing Filed Aug 21, 2026 |
| Aug 13–17, 2026 | Planned (10b5-1) | Scott Bizily (Chief Legal Officer) sold 3,270 shares between Aug 13 and Aug 17 at about $12.10 ($40K), marked as a 10b5-1 plan trade. Holdings down 28% to 8,617 shares. | SEC filing Filed Aug 17, 2026 |
| Aug 4, 2026 | Planned (10b5-1) | David Kirn (Director and Officer) sold 26,842 shares at about $10.23 ($275K), marked as a 10b5-1 plan trade. Holdings down 3% to 844,895 shares. | SEC filing Filed Aug 5, 2026 |
| Aug 3, 2026 | Planned (10b5-1) | David Kirn (CEO and Director) sold 12,415 shares at about $10.05 ($125K), marked as a 10b5-1 plan trade. Holdings down 1% to 871,737 shares. | SEC filing Filed Aug 4, 2026 |
| Jul 9–10, 2026 | Planned (10b5-1) | David Kirn (CEO and Director) sold 58,333 shares between Jul 9 and Jul 10 at about $12.64 ($738K), marked as a 10b5-1 plan trade. Holdings down 6% to 884,152 shares. | SEC filing Filed Jul 14, 2026 |
| Jun 30, 2026 | Planned (10b5-1) | Scott Bizily (Chief Legal Officer) sold 6,566 shares at $14.00 ($92K), marked as a 10b5-1 plan trade. Holdings down 43% to 8,617 shares. | SEC filing Filed Jul 2, 2026 |
| Jun 23, 2026 | Planned (10b5-1) | Scott Bizily (Chief Legal Officer) sold 9,810 shares at $12.00 ($118K), marked as a 10b5-1 plan trade. Holdings down 53% to 8,617 shares. | SEC filing Filed Jun 25, 2026 |
| Jun 22, 2026 | Planned (10b5-1) | David Kirn (CEO and Director) sold 114,746 shares at about $10.47 ($1.2M), marked as a 10b5-1 plan trade. Holdings down 11% to 942,485 shares. | SEC filing Filed Jun 23, 2026 |
| Jun 1, 2026 | Planned (10b5-1) | David Kirn (CEO and Director) sold 1,922 shares at about $10.02 ($19K), marked as a 10b5-1 plan trade. Holdings down <1% to 1,057,231 shares. | SEC filing Filed Jun 2, 2026 |
| Dec 16, 2025 | Planned (10b5-1) | Scott Bizily (Chief Legal Officer) sold 1,635 shares at $10.90 ($18K), marked as a 10b5-1 plan trade. Holdings down 31% to 3,594 shares. | SEC filing Filed Dec 19, 2025 |
| Nov 17, 2025 | Planned (10b5-1) | Scott Bizily (Chief Legal Officer) sold 1,635 shares at $10.59 ($17K), marked as a 10b5-1 plan trade. Holdings down 31% to 3,594 shares. | SEC filing Filed Nov 19, 2025 |
26 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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