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 * Svoronos Dawn 2. Issuer Name and Ticker or Trading Symbol Adverum Biotechnologies, Inc. [ADVM] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O ADVERUM BIOTECHNOLOGIES, INC., 100 CARDINAL WAY 3. Date of Earliest Transaction (Month/Day/Year) 12/09/2025 (Street) REDWOOD CITY, CA 94063 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 12/09/2025 U(1)(2) 5,000 D (1)(2) 0 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
Stock Option (Right to Buy)	$128.2	12/09/2025		D			4,500	(3)	(3)	Common Stock	4,500	(3)	0	D
Stock Option (Right to Buy)	$37	12/09/2025		D			4,000	(3)	(3)	Common Stock	4,000	(3)	0	D
Stock Option (Right to Buy)	$9.9	12/09/2025		D			4,000	(3)	(3)	Common Stock	4,000	(3)	0	D
Stock Option (Right to Buy)	$15.6	12/09/2025		D			4,000	(3)	(3)	Common Stock	4,000	(3)	0	D
Stock Option (Right to Buy)	$7.32	12/09/2025		D			10,520	(3)	(3)	Common Stock	10,520	(3)	0	D
Stock Option (Right to Buy)	$2.32	12/09/2025		D			10,450	(4)	(4)	Common Stock	10,450	(4)	0	D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Svoronos Dawn C/O ADVERUM BIOTECHNOLOGIES, INC. 100 CARDINAL WAY REDWOOD CITY, CA 94063	X

Signatures

/s/ Aneta Fergson, Attorney-in-Fact		12/10/2025
**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)	In connection with the terms of an Agreement and Plan of Merger, dated as of October 24, 2025 (the "Merger Agreement"), by and among the Issuer, Eli Lilly and Company ("Parent") and Parent's direct wholly owned subsidiary, Flying Tigers Acquisition Corporation ("Purchaser"), Purchaser completed a tender offer for shares of the Issuer's Common Stock. In exchange for each share, tendering stockholders received: (i) $3.56 per share in cash, without interest and less any applicable tax withholding (the "Cash Consideration"); plus (ii) one non-tradable contingent value right (each, a "CVR"), which represents the contractual right to receive up to two contingent cash payments of up to an aggregate of $8.91 per CVR, net to the stockholder in cash,
(2)	(continued from footnote 1) without interest and less any applicable tax withholding, upon the achievement of both specified milestones in accordance with the terms and subject to the conditions of a contingent value rights agreement (the "CVR Agreement") with Computershare Inc. and its affiliate, Computershare Trust Company, N.A, as the rights agent. After completion of the tender offer, pursuant to the terms of the Merger Agreement, Purchaser merged with and into the Issuer (the "Merger"), effective as of December 9, 2025, with the Issuer continuing as the surviving entity and a wholly owned subsidiary of Parent (the "Effective Time").
(3)	Pursuant to the terms of the Merger Agreement, each Company Stock Option that has an exercise price equal to or greater than the Cash Consideration that was outstanding immediately prior to the Effective Time (each such Company Stock Option, an "Out-of-the-Money Option"), to the extent not vested, was fully vested as of prior to the Effective Time. Any Out-of-the-Money Options that remained outstanding and unexercised as of the Effective Time was cancelled for no consideration at the Effective Time.
(4)	Pursuant to the terms of the Merger Agreement, at the Effective Time, each outstanding stock option granted under a Company Equity Plan having an exercise price less than the Cash Consideration (each such option, a "Cash-Out Stock Option") that was outstanding immediately prior to the Effective Time, whether or not vested, was automatically cancelled, and in exchange for such cancellation, the holder of such Cash-Out Stock Option received (i) an amount in cash, without interest and less any applicable tax withholdings, equal to the product of (a) the excess, if any, of the Cash Consideration over the applicable exercise price per share underlying such Cash-Out Stock Option multiplied by (b) the total number of shares subject to such Cash-Out Stock Option and (ii) one CVR for each share subject to such Cash-Out Stock Option (without regard to vesting).

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