Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * Sobers Sean 2. Issuer Name and Ticker or Trading Symbol ThredUp Inc. [TDUP] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Chief Financial Officer (Last) (First) (Middle) C/O THREDUP INC., 969 BROADWAY, SUITE 200 3. Date of Earliest Transaction (Month/Day/Year) 12/01/2025 (Street) OAKLAND, CA 94607 4. If Amendment, Date Original Filed (Month/Day/Year) 6. Individual or Joint/Group Filing (Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Class A Common Stock 11/30/2025 A(1) V 1,069 A $6.12 477,411 D Class A Common Stock 12/01/2025 M 36,958 A $ 0 514,369 D Class A Common Stock 12/02/2025 S(2) 19,033 D $7.4216 495,336 D Class A Common Stock 12/01/2025 M 36,667 A $ 0 532,003 D Class A Common Stock 12/02/2025 S(2) 18,883 D $7.4216 513,120 D Class A Common Stock 12/01/2025 M 25,833 A $ 0 538,953 D Class A Common Stock 12/02/2025 S(2) 13,304 D $7.4216 525,649 D

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Restricted Stock Units

(3)

12/01/2025

M

36,958

(4)

(4)

Class A Common Stock

36,958

$ 0

415,834

D

Restricted Stock Units

(3)

12/01/2025

M

36,667

(5)

(5)

Class A Common Stock

36,667

$ 0

379,167

D

Restricted Stock Units

(3)

12/01/2025

M

25,833

(6)

(6)

Class A Common Stock

25,833

$ 0

353,334

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Sobers Sean C/O THREDUP INC. 969 BROADWAY, SUITE 200 OAKLAND, CA 94607			Chief Financial Officer

Signatures

/s/ Alon Rotem, Attorney-in-Fact		12/02/2025
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Shares purchased pursuant to the ThredUp Inc. 2021 Employee Stock Purchase Plan.
(2)	Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of RSUs. This sale is mandated by the Issuer's election under its equity incentive plans to require the satisfaction of tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary trade by the Reporting Person.
(3)	Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock.
(4)	On February 15, 2023, the Reporting Person was granted 443,495 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.
(5)	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.
(6)	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.

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