List of insiders holdings for QUANTUM CORP:
- Shares directly owned by the insider.
- Shares indirectly owned by the insider.
- Total shares owned by the insider (sum of shares directly and indirectly owned).
- Total market value if available.
- 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
What is insider trading>>
- Peter Lynch
What is insider trading>>
| Insider Holder Name | Report Date Time | Shares Owned Directly Indirectly | Total Shares Owned | Filing |
| PACIFIC INVESTMENT MANAGEMENT CO LLC 10% Owner | 2024-08-15 19:45:57 | 13,558,060 0 | 13,558,060 | Form 13D |
| SOROS FUND MANAGEMENT LLC SOROS GEORGE SOROS ROBERT 10% Owner | 2017-02-14 16:18:45 | 10,666,666 0 | 10,666,666 | Form 13G |
| 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 17:15:07 | 5,025,471 0 | 5,025,471 | Form 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 17:15:07 | 5,025,471 0 | 5,025,471 | Form 13D |
| B. Riley Financial Inc. B. Riley Securities Inc. RILEY BRYANT R 10% Owner | 2022-08-08 17:15:07 | 5,025,471 0 | 5,025,471 | Form 13D |
| Matthews Howard L President & COO | 2006-08-24 15:49:03 | 3,360,000 0 | 3,360,000 | Form 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 17:25:21 | 1,957,275 0 | 1,957,275 | Form 13D |
| Smith Jeffrey C MITCHELL MARK R Feld Peter A See Footnote 2 10% Owner | 2016-12-07 18:17:47 | 0 1,500,174 | 1,500,174 | Form 4 |
| Hayes Edward J Jr CFO & Executive VP | 2006-08-24 17:05:09 | 1,132,292 0 | 1,132,292 | Form 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 17:23:42 | 957,067 0 | 957,067 | Form 13D |
| Powers Gregg J Director | 2017-04-03 17:23:06 | 586,500 345,392 | 931,892 | Form 4 |
| Breard Linda M. Chief Financial Officer | 2015-07-02 18:48:29 | 916,761 0 | 916,761 | Form 4 |
| DODSON J MICHAEL Senior Vice President, CFO | 2022-10-07 14:55:38 | 870,372 0 | 870,372 | Form 4 |
| CARROZZA ANTHONY Senior VP, Worldwide Sales | 2006-08-24 18:08:31 | 844,413 0 | 844,413 | Form 4 |
| Wold Jim SVP, RSA | 2007-04-09 16:12:05 | 725,436 0 | 725,436 | Form 3 |
| Stinson Theodore A. SVP, Worldwide Sales | 2013-07-02 16:49:42 | 714,743 0 | 714,743 | Form 4 |
| PARKER JESSE SVP, Operations | 2007-04-09 16:11:40 | 662,124 0 | 662,124 | Form 3 |
| RITTI PHILIP VP, General Manager, Media | 2006-08-24 19:16:57 | 595,244 0 | 595,244 | Form 4 |
| Lee Janae S. SVP, Strategy | 2015-07-02 18:51:41 | 525,520 0 | 525,520 | Form 4 |
| BELLUZZO RICHARD Director | 2012-08-16 19:45:54 | 484,072 0 | 484,072 | Form 4 |
| WHEELWRIGHT STEVEN Director | 2006-08-30 14:19:52 | 438,567 0 | 438,567 | Form 4 |
| ROBERSON DAVID EARLE Director | 2017-04-03 16:06:53 | 431,784 0 | 431,784 | Form 4 |
| GACEK JON W President and CEO | 2017-10-02 19:27:35 | 407,207 0 | 407,207 | Form 4 |
| KRALL DAVID Director | 2017-03-06 12:56:14 | 394,875 0 | 394,875 | Form 4 |
| Dennis Patrick President and CEO | 2018-02-02 15:03:47 | 375,000 0 | 375,000 | Form 4 |
| Hurley John Chief Revenue Officer | 2023-09-06 16:24:32 | 341,519 0 | 341,519 | Form 4 |
| BROWN MICHAEL A Director | 2013-09-04 16:35:34 | 326,312 0 | 326,312 | Form 4 |
| Willis Christopher Shawn Interim CFO | 2016-02-08 17:24:13 | 304,777 0 | 304,777 | Form 4 |
| Rothman Marc E Director | 2022-09-06 16:44:04 | 297,625 0 | 297,625 | Form 4 |
| DINARDO LOUIS Director | 2017-03-06 20:51:41 | 285,392 0 | 285,392 | Form 4 |
| King Elizabeth Chief Revenue Officer | 2021-07-08 15:23:44 | 285,114 0 | 285,114 | Form 4 |
| Black Philip Director | 2015-09-02 16:38:02 | 265,392 0 | 265,392 | Form 4 |
| FULLER DALE L Director | 2017-03-03 18:53:37 | 263,890 0 | 263,890 | Form 4 |
| RAU RAGHAVENDRA Director | 2022-04-26 19:58:11 | 257,874 0 | 257,874 | Form 4 |
| ORECKLIN LAWRENCE President - SSG | 2004-04-15 14:29:55 | 250,000 0 | 250,000 | Form 5 |
| BRITTS WILLIAM C SVP, Worldwide Sales & Mktg. | 2018-02-07 14:57:10 | 207,271 0 | 207,271 | Form 4 |
| Moorehead Lewis W. Chief Accounting Officer | 2022-10-12 19:13:22 | 201,553 0 | 201,553 | Form 4 |
| Buchsbaum Thomas S Director | 2012-09-05 15:25:57 | 201,393 0 | 201,393 | Form 4 |
| BARRETT BARBARA Senior VP, Human Resources | 2010-07-01 19:55:21 | 199,422 0 | 199,422 | Form 4 |
| MARENGI JOSEPH A Director | 2012-09-05 15:27:02 | 191,354 0 | 191,354 | Form 4 |
| FETTER ELIZABETH A Director | 2012-09-05 15:25:41 | 188,392 0 | 188,392 | Form 4 |
| PARTRIDGE JOHN Director | 2006-08-30 14:11:57 | 184,937 0 | 184,937 | Form 4 |
| LAMBERT MICHAEL Chief Financial Officer | 2004-02-23 16:54:28 | 175,000 0 | 175,000 | Form 4 |
| Ahmad Fuad SVP, Chief Financial Officer | 2018-04-03 12:30:37 | 170,998 0 | 170,998 | Form 4 |
| Jacoby Rebecca Director | 2022-09-06 16:50:18 | 158,624 0 | 158,624 | Form 4 |
| FICHTHORN JOHN Director | 2021-08-17 12:14:24 | 154,740 0 | 154,740 | Form 4/A |
| WOLF DENNIS P Director | 2011-09-02 17:22:52 | 138,776 0 | 138,776 | Form 4 |
| LOPATIN GERALD Executive VP, Engineering | 2010-07-01 19:57:15 | 129,567 0 | 129,567 | Form 4 |
| HALL SHAWN D Senior VP, GC & Secretary | 2019-03-12 17:34:44 | 119,999 0 | 119,999 | Form 4 |
| Press Clifford Director | 2019-09-09 18:22:14 | 118,940 0 | 118,940 | Form 4 |
| Lerner James J President & CEO | 2024-11-19 19:46:49 | 113,996 0 | 113,996 | Form 4/A |
| MacPherson Regan J Chief Legal&Compliance Officer | 2021-03-15 17:11:56 | 107,964 0 | 107,964 | Form 4 |
| Auvil Paul R. III Director | 2017-09-05 16:46:10 | 101,735 0 | 101,735 | Form 4 |
| Stedman Geoff G. SVP, Mktg. & Storage Solutions | 2018-02-07 15:04:23 | 101,086 0 | 101,086 | Form 4 |
| FRAUENFELDER LEWIS GM Storage Devices | 2005-02-04 21:40:06 | 92,373 0 | 92,373 | Form 4 |
| ESBER EDWARD M Director | 2011-04-07 17:06:05 | 92,135 0 | 92,135 | Form 4 |
| Andersen Robert J Director | 2015-09-02 16:36:08 | 87,290 0 | 87,290 | Form 4 |
| SANCHEZ ADALIO T Director | 2019-03-12 17:35:25 | 84,072 0 | 84,072 | Form 4 |
| Martella Donald E. Jr. SVP, Engineering | 2020-08-26 16:23:40 | 81,407 0 | 81,407 | Form 4 |
| Clark Robert S. SVP, Product Operations | 2017-07-11 16:56:42 | 74,703 0 | 74,703 | Form 4 |
| Panayides Andy VP Corp Development & Strategy | 2007-02-08 14:48:33 | 67,971 0 | 67,971 | Form 4 |
| Pasternack Bruce A Director | 2009-09-02 18:03:57 | 66,000 0 | 66,000 | Form 4 |
| Wilderotter Mary Agnes Director | 2005-09-28 19:39:27 | 63,750 0 | 63,750 | Form 4 |
| GANNON JOHN B President & COO | 2005-03-24 19:26:33 | 60,243 0 | 60,243 | Form 4 |
| MUTCH JOHN Director | 2017-04-03 16:13:30 | 50,000 0 | 50,000 | Form 4 |
| KREIGLER GEORGE III GM, Storage Systems | 2005-05-02 17:30:05 | 39,761 0 | 39,761 | Form 4 |
| Gianella Kenneth P. Chief Financial Officer | 2024-11-19 19:47:10 | 36,500 0 | 36,500 | Form 4/A |
| Cabrera Brian E SVP Chief Admin Ofcr & Secy | 2024-11-19 19:46:59 | 32,345 0 | 32,345 | Form 4/A |
| White Yue Zhou Director | 2024-11-19 19:47:31 | 29,139 0 | 29,139 | Form 4/A |
| Meyrath Hugues Director | 2024-11-19 19:47:21 | 27,675 0 | 27,675 | Form 4/A |
| Jaworksi Don Director | 2024-11-19 19:46:30 | 27,675 0 | 27,675 | Form 4/A |
| EARHART ALAN L Director | 2007-08-30 16:24:22 | 26,809 0 | 26,809 | Form 4 |
| MAURER JERALD L Exec VP-Human Resources | 2004-04-15 14:15:04 | 26,374 0 | 26,374 | Form 5 |
| Dalton Stephen P SVP, TSS, Engineering | 2007-11-01 18:45:32 | 23,739 0 | 23,739 | Form 4 |
| Pinchev Alex Director | 2017-09-05 16:49:07 | 20,344 0 | 20,344 | Form 4 |
| SANDERSON EDWARD J Director | 2004-09-29 17:23:35 | 18,750 0 | 18,750 | Form 4 |
| Spanjaard Henk Jan Chief Revenue Officer | 2024-11-19 19:46:39 | 16,056 0 | 16,056 | Form 4/A |
| Tracy John R. Director | 2024-11-05 17:44:35 | 15,000 0 | 15,000 | Form 4 |
| Nash Laura A. Chief Accounting Officer | 2024-11-19 19:46:20 | 12,116 0 | 12,116 | Form 4/A |
| BROWN DAVID A Director | 2004-03-18 13:46:46 | 3,063 0 | 3,063 | Form 4 |
| SLAYTON GREGORY W Director | 2004-03-18 15:12:48 | 2,599 0 | 2,599 | Form 4 |
| KENNEDY KEVIN J Director | 2004-11-02 15:18:04 | 1,763 0 | 1,763 | Form 4 |
| NELSON BARBARA H Exec VP-Mktg & Strategy | 2004-04-15 14:21:55 | 1,374 0 | 1,374 | Form 5 |
| Arden Todd Director | 2024-06-17 17:11:16 | 0 0 | 0 | Form 3 |
| BR Dialectic Capital Management LLC Dialectic Antithesis Partners LP 10% Owner | 2019-12-05 17:14:57 | 0 0 | 0 | Form 4 |
| TERINO EDWARD See Explanation of Responses 10% Owner | 2014-05-19 21:33:43 | 0 0 | 0 | Form 3 |
| CROWELL CHRISTOPHER See Explanation of Responses 10% Owner | 2014-05-19 21:36:17 | 0 0 | 0 | Form 3 |
| Neumeyer Christopher D. Director | 2022-08-29 21:12:30 | 0 0 | 0 | Form 3 |