Sean Sobers - 01 Mar 2026 Form 4 Insider Report for ThredUp Inc. (TDUP)

Role: Chief Financial Officer
Signature: /s/ Alon Rotem, Attorney-in-Fact
Issuer symbol: TDUP
Transactions as of: 01 Mar 2026
Net transactions value: $0
Form type: 4
Filing time: 03 Mar 2026, 16:16:05 UTC
Previous filing: 30 Jan 2026
Next filing: 03 Mar 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Sobers Sean	Chief Financial Officer	C/O THREDUP INC., 969 BROADWAY, SUITE 200, OAKLAND	/s/ Alon Rotem, Attorney-in-Fact	03 Mar 2026	0001688472

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	TDUP	Class A Common Stock	Options Exercise	$0	+36,667	+7%	$0.000000	562,316	01 Mar 2026	Direct
transaction	TDUP	Class A Common Stock	Options Exercise	$0	+25,833	+4.6%	$0.000000	588,149	01 Mar 2026	Direct
transaction	TDUP	Class A Common Stock	Options Exercise	$0	+23,609	+4%	$0.000000	611,758	01 Mar 2026	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
transaction	TDUP	Restricted Stock Units	Options Exercise	$0	-36,667	-5.8%	$0.000000	599,979	01 Mar 2026	Class A Common Stock	36,667		Direct	F1, F2
transaction	TDUP	Restricted Stock Units	Options Exercise	$0	-25,833	-4.3%	$0.000000	574,146	01 Mar 2026	Class A Common Stock	25,833		Direct	F1, F3
transaction	TDUP	Restricted Stock Units	Options Exercise	$0	-23,609	-4.1%	$0.000000	550,537	01 Mar 2026	Class A Common Stock	23,609		Direct	F1, F4

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

Explanation of Responses:

Id	Content
F1	Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock.
F2	On February 26, 2024, the Reporting Person was granted 440,000 RSUs, vesting in twelve equal quarterly installments on June 1, September 1, December 1 and March 1 until fully vested, subject to the Reporting Person's continued service to the Issuer on each such date.
F3	On January 9, 2025, the Reporting Person was granted 310,000 RSUs, vesting in twelve equal quarterly installments on June 1, September 1, December 1 and March 1 until fully vested, subject to the Reporting Person's continued service to the Issuer on each such date.
F4	On January 28, 2026, the Reporting Person was granted 283,312 RSUs, vesting in twelve equal quarterly installments on June 1, September 1, December 1 and March 1 until fully vested, subject to the Reporting Person's continued service to the Issuer on each such date.