Insider Holders & Insider Ownership - QUANTUM CORP (QMCO)

List of insiders holdings for QUANTUM CORP:
  1. Shares directly owned by the insider.
  2. Shares indirectly owned by the insider.
  3. Total shares owned by the insider (sum of shares directly and indirectly owned).
  4. Total market value if available.
  5. Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
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Insider Holder NameReport
Date Time		Shares Owned
Directly
Indirectly		Total
Shares Owned		Filing
SOROS FUND MANAGEMENT LLC
SOROS GEORGE
SOROS ROBERT
10% Owner		2017-02-14 16:18:4510,666,666
0		10,666,666Form 13G
PACIFIC INVESTMENT MANAGEMENT CO LLC
10% Owner		2023-07-14 17:00:5610,248,322
0		10,248,322Form 13D
B. Riley Financial Inc.
B. Riley Securities Inc.
RILEY BRYANT R
10% Owner		2022-08-08 17:15:075,025,471
0		5,025,471Form 13D
B. Riley Financial Inc.
B. RILEY CAPITAL MANAGEMENT LLC
BRC Partners Management GP LLC
BRC Partners Opportunity Fund LP
B. Riley Securities Inc.
RILEY BRYANT R
10% Owner		2022-08-08 17:15:075,025,471
0		5,025,471Form 13D
B. Riley Financial Inc.
BRC Partners Opportunity Fund LP
BRC Partners Management GP LLC
B. RILEY CAPITAL MANAGEMENT LLC
B. RILEY FBR INC.
10% Owner		2022-08-08 17:15:075,025,471
0		5,025,471Form 13D
Matthews Howard L
President & COO		2006-08-24 15:49:033,360,000
0		3,360,000Form 4
Singer Eric
VIEX Opportunities Fund LP Series One
VIEX Opportunities Fund LP - Series Two
VIEX Special Opportunities Fund III LP
VIEX GP LLC
VIEX Special Opportunities GP III LLC
VIEX Capital Advisors LLC
See Explanation of Responses
10% Owner		2020-03-11 17:25:211,957,275
0		1,957,275Form 13D
Lerner James J
President & CEO		2024-04-23 17:27:411,904,908
0		1,904,908Form 4
Smith Jeffrey C
MITCHELL MARK R
Feld Peter A
See Footnote 2
10% Owner		2016-12-07 18:17:470
1,500,174		1,500,174Form 4
Hayes Edward J Jr
CFO & Executive VP		2006-08-24 17:05:091,132,292
0		1,132,292Form 4
Starboard Value LP
Starboard Value GP LLC
STARBOARD VALUE & OPPORTUNITY S LLC
Starboard Principal Co LP
Starboard Principal Co GP LLC
STARBOARD VALUE & OPPORTUNITY MASTER FUND LTD
Starboard Value & Opportunity C LP
Starboard Value R LP
Starboard Value R GP LLC
See Footnote 2
10% Owner		2017-11-15 17:23:42957,067
0		957,067Form 13D
Powers Gregg J
Director		2017-04-03 17:23:06586,500
345,392		931,892Form 4
Breard Linda M.
Chief Financial Officer		2015-07-02 18:48:29916,761
0		916,761Form 4
DODSON J MICHAEL
Senior Vice President, CFO		2022-10-07 14:55:38870,372
0		870,372Form 4
CARROZZA ANTHONY
Senior VP, Worldwide Sales		2006-08-24 18:08:31844,413
0		844,413Form 4
Wold Jim
SVP, RSA		2007-04-09 16:12:05725,436
0		725,436Form 3
Stinson Theodore A.
SVP, Worldwide Sales		2013-07-02 16:49:42714,743
0		714,743Form 4
PARKER JESSE
SVP, Operations		2007-04-09 16:11:40662,124
0		662,124Form 3
RITTI PHILIP
VP, General Manager, Media		2006-08-24 19:16:57595,244
0		595,244Form 4
Lee Janae S.
SVP, Strategy		2015-07-02 18:51:41525,520
0		525,520Form 4
BELLUZZO RICHARD
Director		2012-08-16 19:45:54484,072
0		484,072Form 4
WHEELWRIGHT STEVEN
Director		2006-08-30 14:19:52438,567
0		438,567Form 4
ROBERSON DAVID EARLE
Director		2017-04-03 16:06:53431,784
0		431,784Form 4
GACEK JON W
President and CEO		2017-10-02 19:27:35407,207
0		407,207Form 4
KRALL DAVID
Director		2017-03-06 12:56:14394,875
0		394,875Form 4
Dennis Patrick
President and CEO		2018-02-02 15:03:47375,000
0		375,000Form 4
Gianella Kenneth P.
Chief Financial Officer		2024-04-23 17:28:41375,000
0		375,000Form 4
Cabrera Brian E
SVP Chief Admin Ofcr & Secy		2024-04-23 17:26:05371,887
0		371,887Form 4
Hurley John
Chief Revenue Officer		2023-09-06 16:24:32341,519
0		341,519Form 4
BROWN MICHAEL A
Director		2013-09-04 16:35:34326,312
0		326,312Form 4
Willis Christopher Shawn
Interim CFO		2016-02-08 17:24:13304,777
0		304,777Form 4
Rothman Marc E
Director		2022-09-06 16:44:04297,625
0		297,625Form 4
DINARDO LOUIS
Director		2017-03-06 20:51:41285,392
0		285,392Form 4
King Elizabeth
Chief Revenue Officer		2021-07-08 15:23:44285,114
0		285,114Form 4
Black Philip
Director		2015-09-02 16:38:02265,392
0		265,392Form 4
FULLER DALE L
Director		2017-03-03 18:53:37263,890
0		263,890Form 4
RAU RAGHAVENDRA
Director		2022-04-26 19:58:11257,874
0		257,874Form 4
ORECKLIN LAWRENCE
President - SSG		2004-04-15 14:29:55250,000
0		250,000Form 5
BRITTS WILLIAM C
SVP, Worldwide Sales & Mktg.		2018-02-07 14:57:10207,271
0		207,271Form 4
Moorehead Lewis W.
Chief Accounting Officer		2022-10-12 19:13:22201,553
0		201,553Form 4
Buchsbaum Thomas S
Director		2012-09-05 15:25:57201,393
0		201,393Form 4
BARRETT BARBARA
Senior VP, Human Resources		2010-07-01 19:55:21199,422
0		199,422Form 4
MARENGI JOSEPH A
Director		2012-09-05 15:27:02191,354
0		191,354Form 4
FETTER ELIZABETH A
Director		2012-09-05 15:25:41188,392
0		188,392Form 4
PARTRIDGE JOHN
Director		2006-08-30 14:11:57184,937
0		184,937Form 4
LAMBERT MICHAEL
Chief Financial Officer		2004-02-23 16:54:28175,000
0		175,000Form 4
Ahmad Fuad
SVP, Chief Financial Officer		2018-04-03 12:30:37170,998
0		170,998Form 4
Jacoby Rebecca
Director		2022-09-06 16:50:18158,624
0		158,624Form 4
FICHTHORN JOHN
Director		2021-08-17 12:14:24154,740
0		154,740Form 4/A
WOLF DENNIS P
Director		2011-09-02 17:22:52138,776
0		138,776Form 4
LOPATIN GERALD
Executive VP, Engineering		2010-07-01 19:57:15129,567
0		129,567Form 4
Spanjaard Henk Jan
Chief Revenue Officer		2024-04-23 17:26:49121,112
0		121,112Form 4
HALL SHAWN D
Senior VP, GC & Secretary		2019-03-12 17:34:44119,999
0		119,999Form 4
Press Clifford
Director		2019-09-09 18:22:14118,940
0		118,940Form 4
MacPherson Regan J
Chief Legal&Compliance Officer		2021-03-15 17:11:56107,964
0		107,964Form 4
White Yue Zhou
Director		2022-09-06 16:44:23102,766
0		102,766Form 4
Auvil Paul R. III
Director		2017-09-05 16:46:10101,735
0		101,735Form 4
Stedman Geoff G.
SVP, Mktg. & Storage Solutions		2018-02-07 15:04:23101,086
0		101,086Form 4
FRAUENFELDER LEWIS
GM Storage Devices		2005-02-04 21:40:0692,373
0		92,373Form 4
Nash Laura A.
Chief Accounting Officer		2024-04-03 17:27:3392,304
0		92,304Form 4
ESBER EDWARD M
Director		2011-04-07 17:06:0592,135
0		92,135Form 4
Andersen Robert J
Director		2015-09-02 16:36:0887,290
0		87,290Form 4
SANCHEZ ADALIO T
Director		2019-03-12 17:35:2584,072
0		84,072Form 4
Martella Donald E. Jr.
SVP, Engineering		2020-08-26 16:23:4081,407
0		81,407Form 4
Clark Robert S.
SVP, Product Operations		2017-07-11 16:56:4274,703
0		74,703Form 4
Meyrath Hugues
Director		2022-11-28 18:09:4073,498
0		73,498Form 4
Jaworksi Don
Director		2022-11-17 16:23:1673,498
0		73,498Form 4
Panayides Andy
VP Corp Development & Strategy		2007-02-08 14:48:3367,971
0		67,971Form 4
Pasternack Bruce A
Director		2009-09-02 18:03:5766,000
0		66,000Form 4
Wilderotter Mary Agnes
Director		2005-09-28 19:39:2763,750
0		63,750Form 4
GANNON JOHN B
President & COO		2005-03-24 19:26:3360,243
0		60,243Form 4
MUTCH JOHN
Director		2017-04-03 16:13:3050,000
0		50,000Form 4
KREIGLER GEORGE III
GM, Storage Systems		2005-05-02 17:30:0539,761
0		39,761Form 4
EARHART ALAN L
Director		2007-08-30 16:24:2226,809
0		26,809Form 4
MAURER JERALD L
Exec VP-Human Resources		2004-04-15 14:15:0426,374
0		26,374Form 5
Dalton Stephen P
SVP, TSS, Engineering		2007-11-01 18:45:3223,739
0		23,739Form 4
Pinchev Alex
Director		2017-09-05 16:49:0720,344
0		20,344Form 4
SANDERSON EDWARD J
Director		2004-09-29 17:23:3518,750
0		18,750Form 4
BROWN DAVID A
Director		2004-03-18 13:46:463063
0		3063Form 4
SLAYTON GREGORY W
Director		2004-03-18 15:12:482599
0		2599Form 4
KENNEDY KEVIN J
Director		2004-11-02 15:18:041763
0		1763Form 4
NELSON BARBARA H
Exec VP-Mktg & Strategy		2004-04-15 14:21:551374
0		1374Form 5
Neumeyer Christopher D.
Director		2022-08-29 21:12:300
0		0Form 3
BR Dialectic Capital Management LLC
Dialectic Antithesis Partners LP
10% Owner		2019-12-05 17:14:570
0		0Form 4
CROWELL CHRISTOPHER
See Explanation of Responses
10% Owner		2014-05-19 21:36:170
0		0Form 3
TERINO EDWARD
See Explanation of Responses
10% Owner		2014-05-19 21:33:430
0		0Form 3