4D Molecular Therapeutics (FDMT) stock: insider trades, news & valuation
Heavy sellingShare price and insider trades
4D Molecular Therapeutics insider trading at a glance (Oct 9, 2026): in the past 12 months, 0 insiders bought $0 and 3 sold $5.4M of FDMT stock on the open market.
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FDMT insider buying and selling by quarter
Open-market purchases (green, above the line) and sales (red, below), by trade date.
| Quarter | Bought | Purchases | Sold | Sales |
|---|---|---|---|---|
| Q4 2026 | — | 0 | $754K | 2 |
| Q3 2026 | — | 0 | $3.1M | 12 |
| Q2 2026 | — | 0 | $1.4M | 4 |
| Q1 2026 | — | 0 | $3K | 2 |
| Q4 2025 | — | 0 | $111K | 7 |
Valuation, profit and volume
Summary
Over the past 12 months, 0 4D Molecular Therapeutics, Inc. insiders reported open-market purchases totaling $0, while 3 insiders reported sales totaling $5.4M. 23 of 27 recorded sales were made under pre-scheduled Rule 10b5-1 trading plans, which are usually less informative than discretionary sales.
Insider transactions
Open-market purchases and sales.
| Filed | Insider | Type | Shares | Price | Value | Since | Score |
|---|---|---|---|---|---|---|---|
| Oct 7SEC | David KirnSee Remarks | Sell Plan | 58,061709,425 held (−8%) | $12.92 | $750K | +3.2% | — |
| Oct 7SEC | David KirnSee Remarks | Sell Plan | 272709,153 held (−0%) | $13.61 | $4K | -2.1% | — |
| Sep 22SEC | Scott BizilyGeneral Counsel | Sell Plan | 1,6358,617 held (−16%) | $13.65 | $22K | -2.3% | — |
| Sep 16SEC | David KirnSee Remarks | Sell Plan | 58,333767,486 held (−7%) | $13.90 | $811K | -4.1% | — |
| Sep 3SEC | Scott BizilyGeneral Counsel | Sell Plan | 5848,617 held (−6%) | $14.00 | $8K | -4.8% | — |
| Aug 21SEC | David KirnSee Remarks | Sell Plan | 43,149851,746 held (−5%) | $15.36 | $663K | -13.2% | — |
| Aug 21SEC | David KirnSee Remarks | Sell Plan | 25,927825,819 held (−3%) | $16.42 | $426K | -18.8% | — |
| Aug 17SEC | Scott BizilyGeneral Counsel | Sell Plan | 1,6358,617 held (−16%) | $12.20 | $20K | +9.3% | — |
| Aug 17SEC | Scott BizilyGeneral Counsel | Sell Plan | 1,6358,617 held (−16%) | $12.00 | $20K | +11.1% | — |
| Aug 5SEC | David KirnSee Remarks | Sell Plan | 26,842844,895 held (−3%) | $10.23 | $275K | +30.3% | — |
| Aug 4SEC | David KirnSee Remarks | Sell Plan | 12,415871,737 held (−1%) | $10.05 | $125K | +32.6% | — |
| Jul 14SEC | David KirnSee Remarks | Sell Plan | 42,608899,877 held (−5%) | $12.87 | $548K | +3.6% | — |
| Jul 14SEC | David KirnSee Remarks | Sell Plan | 15,283884,594 held (−2%) | $12.01 | $184K | +11.0% | — |
| Jul 14SEC | David KirnSee Remarks | Sell Plan | 442884,152 held (−0%) | $12.84 | $6K | +3.8% | — |
| Jul 2SEC | Scott BizilyGeneral Counsel | Sell Plan | 6,5668,617 held (−43%) | $14.00 | $92K | -4.8% | — |
| Jun 25SEC | Scott BizilyGeneral Counsel | Sell Plan | 9,8108,617 held (−53%) | $12.00 | $118K | +11.1% | — |
| Jun 23SEC | David KirnSee Remarks | Sell Plan | 114,746942,485 held (−11%) | $10.47 | $1.2M | +27.3% | — |
| Jun 2SEC | David KirnSee Remarks | Sell Plan | 1,9221,057,231 held (−0%) | $10.02 | $19K | +33.0% | — |
| Mar 24SEC | Ashoo GuptaVp, Finance And Controller | Sell | 31046,914 held (−1%) | $8.61 | $3K | +54.8% | — |
| Mar 24SEC | Ashoo GuptaVp, Finance And Controller | Sell | 8047,055 held (−0%) | $8.61 | $689 | +54.8% | — |
| Dec 23SEC | Ashoo GuptaVp, Finance And Controller | Sell | 31046,218 held (−1%) | $8.68 | $3K | +53.6% | — |
| Dec 23SEC | Ashoo GuptaVp, Finance And Controller | Sell | 7946,359 held (−0%) | $8.68 | $686 | +53.6% | — |
| Dec 19SEC | Scott BizilyGeneral Counsel | Sell Plan | 1,6353,594 held (−31%) | $10.90 | $18K | +22.3% | — |
| Nov 19SEC | Scott BizilyGeneral Counsel | Sell Plan | 1,6353,594 held (−31%) | $10.59 | $17K | +25.9% | — |
| Oct 27SEC | Scott BizilyGeneral Counsel | Sell Plan | 2,6783,594 held (−43%) | $12.00 | $32K | +11.1% | — |
| Oct 20SEC | Scott BizilyGeneral Counsel | Sell Plan | 1,6355,188 held (−24%) | $10.17 | $17K | +31.1% | — |
| Oct 14SEC | Scott BizilyGeneral Counsel | Sell Plan | 2,4085,188 held (−32%) | $10.00 | $24K | +33.3% | — |
Insiders at 4D Molecular Therapeutics, Inc.
| Insider | Bought | Sold | Last filing | Score |
|---|---|---|---|---|
| David KirnSee Remarks | — | $5.0M | Oct 7, 2026 | — |
| Scott BizilyGeneral Counsel | — | $388K | Sep 22, 2026 | — |
| Ashoo GuptaVp, Finance And Controller | — | $7K | Mar 24, 2026 | — |
FDMT stock: common questions
Are 4D Molecular Therapeutics, Inc. insiders buying FDMT stock?
In the past 12 months, 0 insiders reported open-market purchases of FDMT worth $0.
Are 4D Molecular Therapeutics, Inc. insiders selling FDMT stock?
3 insiders reported sales worth $5.4M over the same period.
Where does this data come from?
Every transaction comes from Form 4 filings that insiders must submit to the SEC within two business days of a trade. We pull them from SEC EDGAR every night.
What is FDMT's 52-week range?
Over the past year FDMT has traded between $7.19 and $16.76. It last closed at $13.33 on Oct 9, 2026.