4D Molecular Therapeutics, Inc (FDMT) insider trading
Every open-market stock purchase and sale by 4D Molecular Therapeutics, Inc executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Other.
Insider activity at a glance
- David Kirn (Insider) sold $737K in the last 90 days.
- Last insider buy: Viking Global Investors LP (Insider), $13.6M, 3 years ago.
Last 12 months: insiders bought $0 (0 buys) and sold $2.2M (11 sales). Last close $10.84 on Jul 16, 2026.
Recent FDMT insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| Jul 10, 2026 | David Kirn (Insider) | Sold | $184K |
| Jul 10, 2026 | David Kirn (Insider) | Sold | $5.7K |
| Jul 9, 2026 | David Kirn (Insider) | Sold | $548K |
| Jun 23, 2026 | Scott Bizily (C-suite exec) | Sold | $118K |
| Jun 23, 2026 | Scott Bizily (C-suite exec) | Bought (not open market) | — |
| Jun 22, 2026 | David Kirn (Insider) | Sold | $1.2M |
| Jun 17, 2026 | Shawn Tomasello (Insider) | Bought (not open market) | — |
| Jun 17, 2026 | Charles Theuer (Insider) | Bought (not open market) | — |
| Jun 17, 2026 | Jacob Chacko (Insider) | Bought (not open market) | — |
| Jun 17, 2026 | Glenn Sblendorio (Insider) | Bought (not open market) | — |
| Jun 17, 2026 | John F Milligan (Insider) | Bought (not open market) | — |
| Jun 17, 2026 | Susannah Gray (Insider) | Bought (not open market) | — |
| Jun 17, 2026 | Nancy Miller-Rich (Insider) | Bought (not open market) | — |
| Jun 1, 2026 | David Kirn (Insider) | Sold | $19.3K |
| Mar 25, 2026 | David Kirn (CEO) | Bought (not open market) | — |
| Mar 25, 2026 | Christopher Paul Simms (Insider) | Bought (not open market) | — |
| Mar 25, 2026 | Scott Bizily (C-suite exec) | Bought (not open market) | — |
| Mar 20, 2026 | Ashoo Gupta (VP) | Sold | $2.7K |
| Mar 20, 2026 | Ashoo Gupta (VP) | Sold | $689 |
| Mar 20, 2026 | Ashoo Gupta (VP) | Bought (not open market) | — |
| Mar 20, 2026 | Ashoo Gupta (VP) | Bought (not open market) | — |
| Jan 5, 2026 | Glenn Sblendorio (Insider) | Bought (not open market) | — |
| Dec 20, 2025 | Ashoo Gupta (VP) | Sold | $2.7K |
| Dec 20, 2025 | Ashoo Gupta (VP) | Sold | $686 |
| Dec 20, 2025 | Ashoo Gupta (VP) | Bought (not open market) | — |
Who's trading FDMT
- David Kirn, CEO: sold $2M (5 sales), last Jul 10, 2026
- Scott Bizily, C-suite exec: sold $226K (6 sales), last Jun 23, 2026
- Susannah Gray, Insider: other filings, last Jun 17, 2026
- Charles Theuer, Insider: other filings, last Jun 17, 2026
- Jacob Chacko, Insider: other filings, last Jun 17, 2026
- John F Milligan, Insider: other filings, last Jun 17, 2026
- Nancy Miller-Rich, Insider: other filings, last Jun 17, 2026
- Glenn Sblendorio, Insider: other filings, last Jun 17, 2026
- Shawn Tomasello, Insider: other filings, last Jun 17, 2026
- Christopher Paul Simms, Insider: other filings, last Mar 25, 2026
- Ashoo Gupta, VP: sold $6.7K (4 sales), last Mar 20, 2026
- Kristian Humer, CFO: other filings, last Dec 9, 2025
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