Quantum Corp CAO logs tax sale, option grant

Quantum Corp’s Chief Accounting Officer Laura A. Nash reported two compensation-related equity moves.

Rhea-AI Filing Summary

Quantum Corp’s Chief Accounting Officer Laura A. Nash reported two compensation-related equity moves. On April 2, 2026, 109 shares of common stock were automatically sold at a weighted average price of $5.44 to cover tax withholding on vesting restricted stock units, leaving her with 11,030 common shares held directly. On April 1, 2026, she received a grant of 49,500 nonstatutory stock options with a $5.03 exercise price, which vest in equal monthly installments over four years beginning April 1, 2026 and expire in 2033.

Insider Trade Summary

Net Seller: 109 shares

Net Sell 2 txns

Insider Nash Laura A.

Role Chief Accounting Officer

Sold 109 shs ($592.96)

Type	Security	Shares	Price	Value
Sale	Common Stock	109	$5.44	$592.96
Grant/Award	Employee Stock Option (right to buy)	49,500	$0.00	$0.00

Holdings After Transaction: Employee Stock Option (right to buy) — 49,500 contracts (Direct); Common Stock — 11,030 shares (Direct)

Footnotes (3)

1. F1. 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 April 1, 2024.
2. F2. Represents a weighted average price. These shares were sold as part of block trades for multiple security holders of the issuer on April 2, 2026, at a price ranging from $5.43 to $5.45. 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.
3. F3. This nonstatutory stock option vests over four years in equal monthly installments beginning on April 1, 2026, subject to the Reporting Persons continued service through each vesting date.

Key Figures

Tax-related share sale: 109 shares at $5.44 Shares held after sale: 11,030 shares Option grant size: 49,500 options +4 more

7 metrics

Tax-related share sale 109 shares at $5.44 Automatic, non-discretionary sale on April 2, 2026

Shares held after sale 11,030 shares Common stock directly owned following April 2, 2026 sale

Option grant size 49,500 options Nonstatutory stock options granted April 1, 2026

Option exercise price $5.03 per share Conversion or exercise price for granted options

Option expiration 2033-04-01 Expiration date of nonstatutory stock option grant

Vesting schedule 4 years, monthly Options vest in equal monthly installments from April 1, 2026

Net share direction 109 net shares sold transactionSummary netBuySellShares shows net-sell of 109

Key Terms

restricted stock units, weighted average price, block trades, nonstatutory stock option, +1 more

5 terms

restricted stock units financial

"to cover tax withholding obligations in connection with the vesting of restricted stock units granted on April 1, 2024"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

weighted average price financial

"Represents a weighted average price. These shares were sold as part of block trades"

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

block trades financial

"These shares were sold as part of block trades for multiple security holders"

A block trade is a single, large buy or sell of shares or bonds arranged privately between big traders rather than piecemeal on the public market. Think of it like buying a whole shipment at once instead of many small shopping trips; it lets large holders move big positions with less immediate disruption but can signal strong buying or selling pressure and cause price swings once the trade is known, so investors watch block trades for clues about market sentiment and liquidity.

nonstatutory stock option financial

"This nonstatutory stock option vests over four years in equal monthly installments"

A nonstatutory stock option (also called a non-qualified stock option) is an employee or contractor right to buy company shares at a set price that does not qualify for special tax treatment. When exercised, the difference between the market price and the set price is treated as ordinary income for the recipient and usually triggers payroll tax and withholding. For investors, these options matter because they create potential share dilution, affect reported compensation costs, and influence the timing of when new shares enter the market—similar to a coupon that lets someone buy stock at a discount but results in an immediate tax bill.

vesting financial

"to cover tax withholding obligations in connection with the vesting of restricted stock units"

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transactions did QMCO Chief Accounting Officer Laura A. Nash report?

Laura A. Nash reported an automatic sale of 109 Quantum Corp common shares and a grant of 49,500 nonstatutory stock options. The sale covered tax withholding on restricted stock units, while the options provide future purchase rights at a fixed $5.03 exercise price.

How many Quantum Corp (QMCO) shares did Laura A. Nash sell and why?

She disposed of 109 Quantum Corp common shares. According to footnotes, these shares were automatically sold on a non-discretionary basis solely to cover tax withholding obligations arising from the vesting of restricted stock units granted on April 1, 2024.

What stock option grant did QMCO’s Chief Accounting Officer receive?

She received 49,500 nonstatutory stock options on Quantum Corp common stock. The options have a $5.03 exercise price, vest in equal monthly installments over four years starting April 1, 2026, and are scheduled to expire in 2033 if not exercised.

How many Quantum Corp (QMCO) shares does Laura A. Nash hold after these transactions?

After the tax-related sale, she directly holds 11,030 Quantum Corp common shares. In addition, she has 49,500 nonstatutory stock options outstanding, each option representing the right to buy one share of common stock at $5.03 per share.

Was the Quantum Corp (QMCO) share sale by Laura A. Nash a discretionary open-market trade?

No, footnotes indicate the 109-share sale was automatic and non-discretionary. It was executed to satisfy tax withholding obligations tied to vesting restricted stock units, rather than a voluntary decision to reduce her investment in Quantum Corp.

At what prices were Laura A. Nash’s Quantum Corp (QMCO) shares sold on April 2, 2026?

The reported $5.44 is a weighted average price. Footnotes explain the 109 shares were sold in block trades for multiple holders at prices ranging from $5.43 to $5.45, with detailed breakdowns available upon regulatory or shareholder request.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 04/03/2026 - 04:15 PM Learn about SEC filing dates

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^*

Nash Laura A.

(Last) (First) (Middle)

C/O QUANTUM CORPORATION

10770 E. BRIARWOOD AVE

(Street)

CENTENNIAL COLORADO 80112

(City) (State) (Zip)

UNITED STATES

(Country)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/01/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

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	04/02/2026		S		109(1)	D	$5.44(2)	11,030	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
Employee Stock Option (right to buy)	$5.03	04/01/2026		A		49,500(3)		(3)	04/01/2033	Common Stock	49,500	$0	49,500	D

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 April 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 April 2, 2026, at a price ranging from $5.43 to $5.45. 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.

3. This nonstatutory stock option vests over four years in equal monthly installments beginning on April 1, 2026, subject to the Reporting Persons continued service through each vesting date.

Remarks:

	/s/ Tara Ilges, Attorney-in-Fact for Laura A. Nash	04/03/2026
	** 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.
* Form 4: SEC 1474 (03-26)