← All companies

FDMT — 4D Molecular Therapeutics, Inc.

Materials · Biological Products, (No Diagnostic Substances) · Nasdaq

CIK 0001650648 · FYE 1231 · All Form 4 filings on EDGAR ↗

Formerly: 4D Molecular Therapeutics Inc. (until 2022-05-12); 4D Molecular Therapeutics Inc (until 2019-09-30)

1Insiders filing

4Transactions

+$207kReported buys

−$1.1MReported sells

0Cluster events

Window in data: 2026-08-19 → 2026-08-19 · Data as of 2026-08-28

Insiders

Insider	Role	Txns	Reported value
Kirn David	See Remarks	4	$1.3M

Transaction history

Filing date	Trade date	Ticker	Insider	Type	Shares	Price	Value	Cluster
2026-08-21	2026-08-19	FDMT	Kirn David See Remarks 10b5-1	M routine	50,000	$4.14	+$207k	—
2026-08-21	2026-08-19	FDMT	Kirn David See Remarks 10b5-1	S	43,149	$15.36	−$663k	—
2026-08-21	2026-08-19	FDMT	Kirn David See Remarks 10b5-1	S	25,927	$16.42	−$426k	—
2026-08-21	2026-08-19	FDMT	Kirn David See Remarks 10b5-1	M routine	50,000	—	—	—

Known data limitations

Form 4 lag: insiders have 2 business days to file after a trade (weekends and holidays extend this), and this site re-ingests once daily — a transaction can appear here roughly three business days after it happened.
13F lag: quarterly 13F-HR holdings cover the prior quarter-end and are due 45 days after it — every institutional position shown here is at least 45 days old by construction, often more.
CUSIP→ticker gaps: 13F positions are reported by CUSIP; some holdings cannot be matched to a current ticker (delistings, corporate actions, thin metadata) and appear without one or are omitted from ticker-level views.
EDGAR timing variability: institutions file at different hours and days within their windows; amended filings (4/A, 13F-HR/A) can restate earlier periods, so historical aggregates may change between batches.

Insider Atlas is a descriptive research site, not investment advice — see the methodology for the full provenance chain.