QMCO

QUANTUM CORP /DE/

Computer Storage DevicesNasdaqNon-accelerated filer<br>Smaller reporting company

Total Trades

Buys

Sells

Largest Trade

N/A

Insiders

Institutional Funds

Inst. Value

$1M+

Activist Filings

Insider Trades

Insider	Title	Type	Value	Shares	Price	Date
Nash Laura A.	Chief Accounting O…	SELL	$1K–$15K	284	$7.40	Sep 17, 2025
Moorehead Lewis W.	Chief Accounting O…	GRANT	N/A	333	—	Apr 23, 2025
Moorehead Lewis W.	Chief Accounting O…	SELL	$1K–$15K	179	$9.65	Apr 23, 2025
Lerner James J	President & CEO	SELL	$15K–$50K	3K	$9.65	Apr 23, 2025
Lerner James J	President & CEO	GRANT	N/A	6K	—	Apr 23, 2025
Cabrera Brian E	SVP Chief Admin Of…	SELL	$1K–$15K	1K	$9.65	Apr 23, 2025
Cabrera Brian E	SVP Chief Admin Of…	GRANT	N/A	2K	—	Apr 23, 2025
PACIFIC INVESTMENT MANAGEMENT CO LLC	10% Owner	SELL	$1M+	962K	$10.25	Apr 17, 2025
Nash Laura A.	Chief Accounting O…	SELL	$1K–$15K	136	$12.85	Apr 4, 2025
Lerner James J	President & CEO	SELL	$50K–$100K	3K	$35.68	Jan 18, 2025
Spanjaard Henk Jan	Chief Revenue Offi…	SELL	$15K–$50K	935	$35.68	Jan 18, 2025
Gianella Kenneth P.	CFO	SELL	$50K–$100K	1K	$35.68	Jan 18, 2025
Cabrera Brian E	SVP Chief Admin Of…	SELL	$50K–$100K	2K	$31.71	Jan 18, 2025
PACIFIC INVESTMENT MANAGEMENT CO LLC	10% Owner	SELL	$1M+	228K	$61.52	Jan 7, 2025
Cabrera Brian E	SVP Chief Admin Of…	SELL	$1K–$15K	6K	$0.47	Nov 3, 2023
Lerner James J	President & CEO	SELL	$15K–$50K	36K	$0.60	Oct 12, 2023
Cabrera Brian E	SVP Chief Admin Of…	SELL	<$1K	942	$0.59	Oct 6, 2023
Nash Laura A.	Chief Accounting O…	SELL	<$1K	888	$0.59	Oct 6, 2023
Hurley John	Chief Revenue Offi…	SELL	$15K–$50K	43K	$0.62	Sep 6, 2023
Cabrera Brian E	SVP Chief Admin Of…	SELL	$15K–$50K	16K	$1.07	Jul 12, 2023
Lerner James J	President & CEO	SELL	$100K–$500K	159K	$1.07	Jul 12, 2023
Hurley John	Chief Revenue Offi…	SELL	$15K–$50K	23K	$1.07	Jul 12, 2023
Nash Laura A.	Chief Accounting O…	SELL	$1K–$15K	4K	$1.07	Jul 12, 2023
Cabrera Brian E	SVP Chief Admin Of…	SELL	$15K–$50K	31K	$0.95	May 4, 2023
Cabrera Brian E	SVP Chief Admin Of…	SELL	$1K–$15K	863	$1.39	Nov 3, 2022
Lerner James J	President & CEO	SELL	$15K–$50K	33K	$1.15	Oct 12, 2022
Moorehead Lewis W.	Chief Accounting O…	SELL	$1K–$15K	2K	$1.15	Oct 12, 2022
Cabrera Brian E	SVP Chief Admin Of…	SELL	<$1K	724	$1.26	Oct 7, 2022
DODSON J MICHAEL	Senior Vice President	SELL	$1K–$15K	11K	$1.26	Oct 7, 2022
Moorehead Lewis W.	Chief Accounting O…	SELL	$1K–$15K	8K	$1.57	Sep 13, 2022
DODSON J MICHAEL	Senior Vice President	SELL	$50K–$100K	35K	$1.57	Sep 13, 2022
Lerner James J	President & CEO	SELL	$50K–$100K	36K	$1.57	Sep 13, 2022
Hurley John	Chief Revenue Offi…	SELL	$15K–$50K	28K	$1.51	Sep 7, 2022
Moorehead Lewis W.	Chief Accounting O…	SELL	$1K–$15K	6K	$1.87	Jul 25, 2022
Lerner James J	President & CEO	SELL	$50K–$100K	62K	$1.41	Jul 19, 2022
DODSON J MICHAEL	Senior Vice President	SELL	$15K–$50K	33K	$1.46	Jul 12, 2022
Cabrera Brian E	Chief Legal & Ofcr…	SELL	$15K–$50K	21K	$1.88	May 9, 2022
Moorehead Lewis W.	Chief Accounting O…	SELL	$15K–$50K	4K	$5.37	Jan 10, 2022
DODSON J MICHAEL	Senior Vice President	SELL	$50K–$100K	19K	$5.37	Jan 10, 2022
Lerner James J	President & CEO	SELL	$100K–$500K	40K	$5.37	Jan 10, 2022

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Institutional Ownership

13F filings as of Dec 31, 2025 · 27 funds holding

Fund	Shares	Value	Type
Portolan Capital Management, LLC	477K	$1M+	SH
UBS Group AG	138K	$500K+	SH
GEODE CAPITAL MANAGEMENT, LLC	126K	$500K+	SH
STATE STREET CORP	91K	$500K+	SH
AlphaQuest LLC	29K	$100K–$500K	SH
FLAGSHIP HARBOR ADVISORS, LLC	27K	$100K–$500K	SH
LPL Financial LLC	18K	$100K–$500K	SH
BARCLAYS PLC	14K	$50K–$100K	SH
CITIGROUP INC	13K	$50K–$100K	SH
VANGUARD GROUP INC	6K	$15K–$50K	SH
NBC SECURITIES, INC.	4K	$15K–$50K	SH
MORGAN STANLEY	3K	$15K–$50K	SH
MARSHALL WACE, LLP	3K	$15K–$50K	SH
SBI Securities Co., Ltd.	2K	$15K–$50K	SH
BNP PARIBAS FINANCIAL MARKETS	1K	$1K–$15K	SH
FEDERATED HERMES, INC.	501	$1K–$15K	SH
Quattro Advisors LLC	400	$1K–$15K	SH
FIFTH THIRD BANCORP	295	$1K–$15K	SH
WELLS FARGO & COMPANY/MN	125	<$1K	SH
EFG International AG	100	<$1K	SH