Form 4 for QMCO QUANTUM CORP /DE/

Accepted 2026-04-03 16:15:38 ET · period of report 2026-04-01 · accession 0001628280-26-023655 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X	Filed	Traded	Ticker	Insider	Title	Type	Price	Qty	Owned	ΔOwn	Value
D	2026-04-03 16:15	2026-04-02	QMCO	Nash Laura A.	CAO	S - Sale	$5.44	-109	11.0K	-1.0%	-$592.96
D	2026-04-03 16:15	2026-04-01	QMCO	Nash Laura A.	CAO	A - Grant	$0.00	+49.5K	49.5K	New	$0

Purchase Sale Sale after option exercise All abbreviations

#	Table	Security	Date	Code	A/D	Shares	Price	Owned after	Own	Exercise / expiry	Underlying	Footnotes
1	Common	Common Stock	2026-04-02	S	D	109	$5.44	11,030	D	—	—	(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. (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.
2	Derivative	Employee Stock Option (right to buy)	2026-04-01	A	A	49,500	$0.00	49,500	D	$5.03 · — to 2033-04-01	49,500 Common Stock	(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. (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.