4D Molecular Therapeutics Ownership & Insider Activity

4D Molecular Therapeutics (FDMT) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 3.2% of shares outstanding. Institutional investors hold 43.2%. Over the past 90 days, insiders made 5 sales worth $2.8M.

Shares Outstanding

55.244M

Shares Float

48.187M

Insider Shares Owned

1.785M

Insider % Owned

3.2%

Institutional Shares Held

23.888M

Institutional % Held

43.2%

Ownership Breakdown

Net Insider Activity by Month

Purchases (90d)

Sales (90d)

$2.8M total

Net Activity

Net Selling

Net Value (90d)

-$2.8M

4D Molecular Therapeutics Insider Transactions (Last 6 Months)

Date	Insider	Title	Type	Shares	Price	Value
Oct 16, 2026	Scott Bizily	CHIEF LEGAL OFFICER	SELL-OPTIONS	—	$8.49	$14K
Oct 5, 2026	David Kirn	SEE REMARKS	SELL	58.333K	$12.92	$754K
Sep 16, 2026	Scott Bizily	CHIEF LEGAL OFFICER	SELL-OPTIONS	—	$8.89	$16K
Sep 14, 2026	David Kirn	SEE REMARKS	SELL	58.333K	$13.90	$811K
Sep 1, 2026	Scott Bizily	CHIEF LEGAL OFFICER	SELL-OPTIONS	—	$10.25	$4K
Aug 19, 2026	David Kirn	SEE REMARKS	SELL	19.076K	$9.95	$881K
Aug 13, 2026	Scott Bizily	CHIEF LEGAL OFFICER	SELL-OPTIONS	—	$8.12	$26K
Aug 4, 2026	David Kirn	SEE REMARKS	SELL	26.842K	$10.23	$275K
Aug 3, 2026	David Kirn	SEE REMARKS	SELL	12.415K	$10.05	$125K
Jul 9, 2026	David Kirn	SEE REMARKS	SELL	58.333K	$12.64	$737K
Jun 30, 2026	Scott Bizily	CHIEF LEGAL OFFICER	SELL-OPTIONS	—	$10.10	$51K
Jun 23, 2026	Scott Bizily	CHIEF LEGAL OFFICER	SELL-OPTIONS	—	$8.07	$77K
Jun 22, 2026	David Kirn	SEE REMARKS	SELL	114.746K	$10.47	$1.2M
Jun 1, 2026	David Kirn	SEE REMARKS	SELL	1.922K	$10.02	$19K