ThredUp Inc. — Director's Dealing 2026

Mar 3, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ThredUp Inc. (TDUP)
CIK: 0001484778
Period of Report: 2026-03-01

Reporting Person: Sobers Sean (Chief Financial Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-03-01	Class A Common Stock	M	36667	—	Acquired	562316	Direct
2026-03-01	Class A Common Stock	M	25833	—	Acquired	588149	Direct
2026-03-01	Class A Common Stock	M	23609	—	Acquired	611758	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2026-03-01	Restricted Stock Units	$	M	36667	Disposed		Class A Common Stock (36667)	Direct
2026-03-01	Restricted Stock Units	$	M	25833	Disposed		Class A Common Stock (25833)	Direct
2026-03-01	Restricted Stock Units	$	M	23609	Disposed		Class A Common Stock (23609)	Direct

Footnotes

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.