QMCO CEO tax-withholding sale: 2,975 shares; 24,700 remain

Rhea-AI Filing Summary

Hugues Meyrath, who serves as President & CEO and a director of Quantum Corp (QMCO), reported a transaction dated 10/02/2025. The filing shows 2,975 shares of common stock were sold (transaction code S) to cover tax withholding on restricted stock units that vested from a grant dated 10/01/2024. The report gives a weighted average sale price of $10.86 (execution prices ranged from $10.85 to $10.87) and states 24,700 shares remain beneficially owned after the sale. The transaction was executed as part of block trades on 10/02/2025, and the Form 4 was signed by an attorney-in-fact on 10/03/2025.

Positive

• Insider compliance: Form 4 filed promptly and includes explanation for the sale
• Retention of stake: Reporting person still holds 24,700 shares after the transaction

Negative

• None.

Insights

Corporate Governance Analyst

Routine tax-withholding sale by CEO; no new compensation arrangement disclosed.

The Form 4 records a 2,975-share sale executed to satisfy tax withholding related to RSU vesting from 10/01/2024. This type of sale is commonly automatic and tied to compensation events rather than discretionary divestiture.

The filing reaffirms insider compliance with reporting requirements and leaves the reporting person with 24,700 shares, a retained position that indicates ongoing ownership alignment with shareholders.

Securities Compliance Counsel

Transaction appears procedural and properly disclosed under Section 16 rules.

The Form 4 includes a clear explanation that shares were sold to cover tax obligations and provides a weighted average price of $10.86 with a price range of $10.85–$10.87. The filer offers to provide detailed execution information on request, which aligns with disclosure norms for block trades.

The form was filed individually for one reporting person and signed by an attorney-in-fact, meeting form-execution conventions.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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 for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Meyrath Hugues

(Last) (First) (Middle)

C/O QUANTUM CORPORATION

10770 E. BRIARWOOD AVE

(Street)

CENTENNIAL CO 80112

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
QUANTUM CORP /DE/ [ QMCO ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	President & CEO

3. Date of Earliest Transaction (Month/Day/Year)
10/02/2025

4. If Amendment, Date of 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

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	10/02/2025		S		2,975(1)	D	$10.86(2)	24,700	D

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 Securities Underlying Derivative Security (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: 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

Explanation of Responses:

1. Represents the number of shares automatically sold on a non-discretionary basis, to cover tax withholding obligations in connection with the vesting of restricted stock units granted on October 1, 2024.

2. Represents a weighted average price. These shares were sold as part of block trades for multiple security holders of the issuer on October 2, 2025, at a price ranging from $10.85 to $10.87. The reporting person undertakes to provide upon request by the Securities and Exchange Commission, the issuer, or a securityholder of the issuer detailed information regarding the number of shares sold and the prices at which the transactions were executed.

Remarks:

	/s/ Tara Ilges, attorney-in-fact for Hugues Meyrath	10/03/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did QMCO insider Hugues Meyrath sell on 10/02/2025?

The Form 4 reports the sale of 2,975 shares of QMCO common stock on 10/02/2025.

Why were the QMCO shares sold by the reporting person?

The shares were sold to cover tax withholding obligations tied to the vesting of restricted stock units granted on 10/01/2024.

At what price were the QMCO shares sold?

The filing states a weighted average sale price of $10.86, with execution prices ranging from $10.85 to $10.87.

How many QMCO shares does Hugues Meyrath own after the transaction?

Following the reported sale, the filing shows beneficial ownership of 24,700 shares.

Who signed the Form 4 for the reporting person?

The Form 4 is signed by Tara Ilges, attorney-in-fact for Hugues Meyrath on 10/03/2025.