Ashoo Gupta - 30 Sep 2025 Form 3 Insider Report for 4D Molecular Therapeutics, Inc. (FDMT)

Role: VP, Finance and Controller
Signature: /s/ Ashoo Gupta
Issuer symbol: FDMT
Transactions as of: 30 Sep 2025
Net transactions value: $0
Form type: 3
Filing time: 10 Oct 2025, 21:04:24 UTC
Next filing: 23 Dec 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Gupta Ashoo	VP, Finance and Controller	C/O 4D MOLECULAR THERAPEUTICS, INC., 5858 HORTON STREET #455, EMERYVILLE	/s/ Ashoo Gupta	10 Oct 2025	0002091461

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	FDMT	Common Stock						45,662	30 Sep 2025	Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
holding	FDMT	Stock Option (Right to Buy)							30 Sep 2025	Common Stock	27,700	$22.69	Direct	F1
holding	FDMT	Stock Option (Right to Buy)							30 Sep 2025	Common Stock	7,056	$4.14	Direct	F2
holding	FDMT	Restricted Stock Units							30 Sep 2025	Common Stock	13,850		Direct	F3, F4
holding	FDMT	Restricted Stock Units							30 Sep 2025	Common Stock	3,528		Direct	F4, F5

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	25% of the shares subject to the stock option vest on the first anniversary measured from June 12, 2024 (the "Vesting Commencement Date"), and 1/48th of the total number of shares vest in thirty-six (36) successive and equal monthly installments thereafter, such that 100% of the shares subject to the option will be fully vested and exercisable on the fourth anniversary of the Vesting Commencement Date, while the grantee remains a service provider to the Company.
F2	The shares underlying the stock option award shall vest and become exercisable as to 1/48th of the underlying shares on each monthly anniversary of March 6, 2025 (the "Vesting Commencement Date"), such that 100% of the shares subject to the option will be fully vested and exercisable on the fourth anniversary of the Vesting Commencement Date, while the grantee remains a service provider to the Company.
F3	The shares underlying the restricted stock unit award shall vest as to 25% of the shares on June 20, 2025 and as to 1/16th of the underlying shares on each quarterly anniversary of such date thereafter, while the grantee remains a service provider to the Company.
F4	Each Restricted Stock Unit represents a contingent right to receive one share of Common Stock.
F5	The shares underlying the restricted stock unit award shall vest as to 1/16th of the shares on June 20, 2025 and as to 1/16th of the underlying shares on each quarterly anniversary of such date thereafter, while the grantee remains a service provider to the Company.