4D Molecular Therapeutics Inc.

Last updated September 27, 2026

Organization details

Legal name
4D Molecular Therapeutics Inc.
Ownership
Public
Status
Active
SIC code
2836 — Biological Products, (No Diagnostic Substances)
Jurisdiction of incorporation
Delaware
Headquarters city
Emeryville
Headquarters state / province
California
Headquarters country
United States
Fiscal year end
December
Ticker symbol
FDMT
Primary stock exchange
Nasdaq

Identifiers

SEC CIK
0001650648
EIN
47-3506994

Board of directors

Chief executives

David Kirn · Chief Executive Officer
Dates unknown

Director election results

Annual meeting of June 17, 2026. Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.

Board connections

6 of this board's directors also sit on 9 other boards.

Network of 4D Molecular Therapeutics Inc.'s board connections Aldeyra Therapeutics Inc. Aldeyra Therapeutics I... AnaptysBio Inc. AnaptysBio Inc. Cabaletta Bio Inc. Cabaletta Bio Inc. Kailera Therapeutics Inc. Kailera Therapeutics I... Kalaris Therapeutics Inc. Kalaris Therapeutics I... Maravai LifeSciences Holdings Inc. Maravai LifeSciences H... Mineralys Therapeutics Inc. Mineralys Therapeutics... Oric Pharmaceuticals Inc. Oric Pharmaceuticals I... Pacific Biosciences of California Inc. Pacific Biosciences of... Glenn Sblendorio Glenn Sblendorio Jacob Chacko Jacob Chacko John F. Milligan John F. Milligan Nancy Miller-Rich Nancy Miller-Rich Shawn Tomasello Shawn Tomasello Susannah Gray Susannah Gray 4D Molecular Therapeutics...
Shared director Other board Same sector

Insider trades

All notable trades →

From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.

Bought, last 12 months
$0
0 purchases by 0 insiders
Sold, last 12 months
$4,651,074
25 sales by 3 insiders
Date Insider Transaction Shares Price Value
Sep 16, 2026 Bizily Scott Officer (Chief Legal Officer) Option exercise +1,635 $4.14 $6,769
Sep 16, 2026 Bizily Scott Officer (Chief Legal Officer) Open-market sale −1,635 $13.65 $22,318
Sep 14, 2026 David Kirn Director, Officer (See Remarks) Open-market sale −58,333 $13.90 $811,004
Sep 1, 2026 Bizily Scott Officer (Chief Legal Officer) Option exercise +584 $6.49 $3,790
Sep 1, 2026 Bizily Scott Officer (Chief Legal Officer) Open-market sale −584 $14.00 $8,176
Aug 19, 2026 David Kirn Director, Officer (See Remarks) Option exercise +50,000 $4.14 $207,000
Aug 19, 2026 David Kirn Director, Officer (See Remarks) Open-market sale −43,149 $15.36 $662,622
Aug 19, 2026 David Kirn Director, Officer (See Remarks) Open-market sale −25,927 $16.42 $425,651
Aug 17, 2026 Bizily Scott Officer (Chief Legal Officer) Option exercise +1,635 $4.14 $6,769
Aug 17, 2026 Bizily Scott Officer (Chief Legal Officer) Open-market sale −1,635 $12.20 $19,947
Aug 13, 2026 Bizily Scott Officer (Chief Legal Officer) Option exercise +1,635 $4.14 $6,769
Aug 13, 2026 Bizily Scott Officer (Chief Legal Officer) Open-market sale −1,635 $12.00 $19,620
Aug 4, 2026 David Kirn Director, Officer (See Remarks) Open-market sale −26,842 $10.23 $274,596
Aug 3, 2026 David Kirn Director, Officer (See Remarks) Open-market sale −12,415 $10.05 $124,722
Jul 10, 2026 David Kirn Director, Officer (See Remarks) Open-market sale −15,283 $12.01 $183,560

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