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 * Gu Paul 2. Issuer Name and Ticker or Trading Symbol Upstart Holdings, Inc. [UPST] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Chief Technology Offier (Last) (First) (Middle) C/O UPSTART HOLDINGS, INC., 2950 S. DELAWARE STREET, SUITE 410 3. Date of Earliest Transaction (Month/Day/Year) 02/28/2026 (Street) SAN MATEO, CA 94403 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 Common Stock 1,102,226(1) D Common Stock 44,930 I by trust(2) Common Stock 80,000 I by LLC(3) Common Stock 20,000 I by trust(4)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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

Performance-based Restricted Stock Unit

$ 0

02/28/2026

A

912,702

(5)

(5)

Common Stock

912,702

$ 0

912,702

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Gu Paul C/O UPSTART HOLDINGS, INC. 2950 S. DELAWARE STREET, SUITE 410 SAN MATEO, CA 94403	X		Chief Technology Offier

Signatures

/s/ Steven Madrid, by power of attorney		03/03/2026
**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)	Certain of these securities are restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of Common Stock, subject to the applicable vesting schedule and conditions of each RSU.
(2)	The reportable securities are owned by The Paul Xinquan Gu 2021 Gifting Trust, of which the Reporting Person is a trustee.
(3)	The reportable securities are owned by JECCO, LLC, of which the Reporting Person is a managing member.
(4)	The reportable securities are owned by The Gu Qiao Family Trust, of which the Reporting Person is a managing member.
(5)	These securities are performance-based restricted stock units (PRSUs). Each PRSU represents a contingent right to receive one share of Common Stock in an amount from 0% to 300% of the target number of PRSUs granted. The actual number of PRSUs earned will be based, in part, upon achievement of certain TSR CAGR targets as of February 15, 2030 and subject to vesting on February 20, 2030, subject to the Reporting Person continuing as a service provider through such date.

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