Quantum (QMCO) Officer Reports Sell-to-Cover of 284 Shares at $7.399

Rhea-AI Filing Summary

Laura A. Nash, Chief Accounting Officer of Quantum Corp (QMCO), reported the automatic sale of 284 shares of common stock on 09/12/2025 to cover tax withholding tied to vested restricted stock units granted on July 1, 2022 and July 1, 2023. The shares were sold as part of block trades at a weighted average price of $7.399, within a reported range of $7.3803 to $7.41. After the reported disposal, the reporting person beneficially owns 11,368 shares. The sale was noted as non-discretionary and executed to satisfy tax obligations associated with RSU vesting.

Positive

• Transparent disclosure of a sell-to-cover transaction including weighted average price and price range
• Compliance with Section 16 reporting obligations for an officer
• Specificity about the RSU grant dates (July 1, 2022 and July 1, 2023) and the purpose of the sale

Negative

• Disposition of 284 shares reduced the reporting person's stake to 11,368 shares

Insights

Financial Analyst

TL;DR: Routine non-discretionary sell-to-cover of RSUs; small position change, no new information on company operations.

The filing documents a tax-withholding sale of 284 shares resulting from RSU vesting, executed as part of block trades at a weighted average price of $7.399. This is a routine liquidity event common when equity awards vest and does not indicate a voluntary diversification or a change in insider conviction. The remaining beneficial ownership of 11,368 shares is disclosed, allowing investors to track insider holdings precisely.

Corporate Governance Expert

TL;DR: Compliance-focused disclosure showing timely reporting and use of standard sell-to-cover mechanics for RSU tax obligations.

The Form 4 indicates the reporting person followed standard procedures for withholding taxes by allowing automatic share sales tied to RSU vesting from grants dated July 1, 2022 and July 1, 2023. The use of block trades across multiple holders is disclosed with a specified price range, and the filer offers to provide detailed execution data on request, which supports transparency in insider transaction reporting.

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

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

Nash Laura A.

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Accounting Officer

3. Date of Earliest Transaction (Month/Day/Year)
09/12/2025

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	09/12/2025		S		284(1)	D	$7.399(2)	11,368	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 July 1, 2022, and July 1, 2023.

2. Represents a weighted average price. These shares were sold as part of block trades for multiple security holders of the issuer on September 12, 2025, at a price ranging from $7.3803 to $7.41. 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 Laura A. Nash	09/17/2025
	** 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 transaction did Laura A. Nash report on the Form 4 for QMCO?

The report discloses a non-discretionary sale of 284 common shares on 09/12/2025 to cover tax withholding related to vested RSUs.

At what price were the QMCO shares sold in the reported transaction?

The shares were sold as part of block trades at a weighted average price of $7.399, with execution prices ranging from $7.3803 to $7.41.

Why were the shares sold according to the filing?

The sale was executed automatically to satisfy tax withholding obligations stemming from RSUs that vested from grants on July 1, 2022 and July 1, 2023.

How many QMCO shares does the reporting person own after the transaction?

Following the reported disposal, the reporting person beneficially owns 11,368 shares of Quantum Corp common stock.

Does the filing indicate discretion in the sale?

No. The filing states the shares were sold on a non-discretionary basis to cover tax withholding.