Quantum grants Hiral Patel 50,000 restricted stock units

QMCO's chief accounting officer's RSUs vest in three equal annual installments starting October 1, 2027, subject to continued service.

Rhea-AI Filing Summary

Quantum Corp (QMCO) Chief Accounting Officer Hiral Patel acquired 50,000 restricted stock units on October 1, 2026. Each RSU represents a contingent right to receive one common share. The reported position following the grant was 50,000 shares. The RSUs vest in three equal annual installments beginning October 1, 2027, subject to continued service through each vesting date; the vesting commencement date is October 1, 2026.

Insider Trade Summary

Grant/Award: 50,000 shares

Grant/Award 1 txn

Insider Patel Hiral

Role Chief Accounting Officer

Type	Security	Shares	Price	Value
Grant/Award	Common Stock F1	50,000	$0.00	$0.00

Holdings After Transaction: Common Stock — 50,000 shares (Direct)

Footnotes (1)

1. F1. Grant of restricted stock units (RSUs), each of which represents a contingent right to receive one share of common stock of QMCO. The RSUs vest in three equal annual installments beginning on October 1, 2027, with a vesting commencement date of October 1, 2026, subject to the Reporting Persons continued service through each vesting date.

Key Figures

Restricted stock units acquired: 50,000 RSUs Shares per RSU: 1 common share Vesting installments: 3 equal annual installments +1 more

4 metrics

Restricted stock units acquired 50,000 RSUs Granted October 1, 2026

Shares per RSU 1 common share Each RSU is a contingent right to receive one share

Vesting installments 3 equal annual installments Beginning October 1, 2027, subject to continued service through each vesting date

Vesting commencement date October 1, 2026 RSU grant

Key Terms

restricted stock units (RSUs), contingent right, vesting commencement date

3 terms

restricted stock units (RSUs) financial

"Grant of restricted stock units (RSUs)"

Restricted stock units (RSUs) are a type of company promise to give employees shares of stock in the future, usually after certain conditions like working for a set time. They are like a gift promised today that you receive later, which can become valuable if the company's stock price goes up. RSUs matter because they are a way companies reward employees and can be a significant part of compensation.

contingent right financial

"each of which represents a contingent right to receive one share"

vesting commencement date financial

"with a vesting commencement date of October 1, 2026"

The vesting commencement date is the starting point when an employee begins earning ownership rights to their promised benefits, such as stock options or retirement contributions. Think of it like the day a savings account is opened—only after this date do the benefits start to grow and become fully available over time. It matters to investors because it marks when the clock begins ticking toward full ownership, affecting the timing and value of these benefits.

FAQ

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

How many RSUs did QMCO's chief accounting officer acquire?

Hiral Patel acquired 50,000 restricted stock units on October 1, 2026. Each RSU represents a contingent right to receive one share of QMCO common stock.

When do QMCO's RSUs vest?

The RSUs vest in three equal annual installments beginning October 1, 2027, subject to continued service through each vesting date. The vesting commencement date is October 1, 2026.

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

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Available on EDGAR 10/05/2026 - 04:56 PM Accepted by SEC EDGAR 10/05/2026 - 04:56 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^*

Patel Hiral

(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)
10/01/2026

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	10/01/2026		A		50,000(1)	A	$0	50,000	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. Grant of restricted stock units (RSUs), each of which represents a contingent right to receive one share of common stock of QMCO. The RSUs vest in three equal annual installments beginning on October 1, 2027, with a vesting commencement date of October 1, 2026, subject to the Reporting Persons continued service through each vesting date.

Remarks:

	/s/ Tara Ilges, Attorney-in-fact for Hiral A. Patel	10/05/2026
	** 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)