FDMT insider trading — 4D Molecular Therapeutics, Inc.
No open-market insider purchases or sales were filed for 4D Molecular Therapeutics, Inc. (FDMT) in the last 90 days. Other insider transactions — such as stock awards, option exercises or tax withholding — are listed below.
Updated Oct 16, 2026.
Recent FDMT insider transactions
Every Form 4 filed by 4D Molecular Therapeutics, Inc. officers, directors and 10% owners in the last 90 days, newest first. P = open-market purchase, S = open-market sale; other codes are awards, option exercises, tax withholding or gifts.
| Trade date | Insider | Role | Type | Ownership | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|---|
| Oct 5, 2026 | Kirn David | See Remarks | S · Sale · 10b5-1 | Direct | 58,333 | $12.92 | $754K | Form 4 |
| Sep 16, 2026 | Bizily Scott | Chief Legal Officer | M · Option exercise · 10b5-1 | Direct | 1,635 | $4.14 | $7K | Form 4 |
| Sep 16, 2026 | Bizily Scott | Chief Legal Officer | S · Sale · 10b5-1 | Direct | 1,635 | $13.65 | $22K | Form 4 |
| Sep 14, 2026 | Kirn David | See Remarks | S · Sale · 10b5-1 | Direct | 58,333 | $13.90 | $811K | Form 4 |
| Sep 1, 2026 | Bizily Scott | Chief Legal Officer | M · Option exercise · 10b5-1 | Direct | 584 | $6.49 | $4K | Form 4 |
| Sep 1, 2026 | Bizily Scott | Chief Legal Officer | S · Sale · 10b5-1 | Direct | 584 | $14.00 | $8K | Form 4 |
| Aug 19, 2026 | Kirn David | See Remarks | M · Option exercise · 10b5-1 | Direct | 50,000 | $4.14 | $207K | Form 4 |
| Aug 19, 2026 | Kirn David | See Remarks | S · Sale · 10b5-1 | Direct | 69,076 | $15.75 | $1.09M | Form 4 |
| Aug 17, 2026 | Bizily Scott | Chief Legal Officer | M · Option exercise · 10b5-1 | Direct | 1,635 | $4.14 | $7K | Form 4 |
| Aug 17, 2026 | Bizily Scott | Chief Legal Officer | S · Sale · 10b5-1 | Direct | 1,635 | $12.20 | $20K | Form 4 |
| Aug 13, 2026 | Bizily Scott | Chief Legal Officer | M · Option exercise · 10b5-1 | Direct | 1,635 | $4.14 | $7K | Form 4 |
| Aug 13, 2026 | Bizily Scott | Chief Legal Officer | S · Sale · 10b5-1 | Direct | 1,635 | $12.00 | $20K | Form 4 |
| Aug 4, 2026 | Kirn David | See Remarks | S · Sale · 10b5-1 | Direct | 26,842 | $10.23 | $275K | Form 4 |
| Aug 3, 2026 | Kirn David | See Remarks | S · Sale · 10b5-1 | Direct | 12,415 | $10.05 | $125K | Form 4 |
FDMT insider trading FAQ
Are insiders buying FDMT stock?
Not on the open market. In the last 90 days, 4D Molecular Therapeutics, Inc. insiders made no open-market purchases, and no open-market sales. Purchases with the insider's own money are generally seen as a stronger signal than sales, which happen for many reasons (taxes, diversification, planned 10b5-1 sales).
Who are the insiders trading FDMT?
No insider bought or sold on the open market in the last 90 days.
Where does FDMT insider trading data come from?
Every transaction comes from SEC Form 4 filings on EDGAR. Company officers, directors and 10% owners must file a Form 4 within two business days of buying or selling. InsiderBolt reads these filings directly from the SEC.
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Insider trading data is for informational purposes only and is not investment advice. Filings can be amended; always confirm details on SEC EDGAR.