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 |
| 1 | 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 |
| 2 | 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 |
| 3 | 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 |
| 4 | 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 |
| 5 | Matthews Howard L President & COO |
2006-08-24 15:49:03 | 3,360,000 0 |
3,360,000 | Form 4 |
| 6 | 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 |
| 7 | 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 |
| 8 | Hayes Edward J Jr CFO & Executive VP |
2006-08-24 17:05:09 | 1,132,292 0 |
1,132,292 | Form 4 |
| 9 | 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 |
| 10 | Powers Gregg J Director |
2017-04-03 17:23:06 | 586,500 345,392 |
931,892 | Form 4 |
| 11 | Breard Linda M. Chief Financial Officer |
2015-07-02 18:48:29 | 916,761 0 |
916,761 | Form 4 |
| 12 | DODSON J MICHAEL Senior Vice President, CFO |
2022-10-07 14:55:38 | 870,372 0 |
870,372 | Form 4 |
| 13 | CARROZZA ANTHONY Senior VP, Worldwide Sales |
2006-08-24 18:08:31 | 844,413 0 |
844,413 | Form 4 |
| 14 | Wold Jim SVP, RSA |
2007-04-09 16:12:05 | 725,436 0 |
725,436 | Form 3 |
| 15 | Stinson Theodore A. SVP, Worldwide Sales |
2013-07-02 16:49:42 | 714,743 0 |
714,743 | Form 4 |
| 16 | PARKER JESSE SVP, Operations |
2007-04-09 16:11:40 | 662,124 0 |
662,124 | Form 3 |
| 17 | RITTI PHILIP VP, General Manager, Media |
2006-08-24 19:16:57 | 595,244 0 |
595,244 | Form 4 |
| 18 | Lee Janae S. SVP, Strategy |
2015-07-02 18:51:41 | 525,520 0 |
525,520 | Form 4 |
| 19 | BELLUZZO RICHARD Director |
2012-08-16 19:45:54 | 484,072 0 |
484,072 | Form 4 |
| 20 | WHEELWRIGHT STEVEN Director |
2006-08-30 14:19:52 | 438,567 0 |
438,567 | Form 4 |
| 21 | ROBERSON DAVID EARLE Director |
2017-04-03 16:06:53 | 431,784 0 |
431,784 | Form 4 |
| 22 | GACEK JON W President and CEO |
2017-10-02 19:27:35 | 407,207 0 |
407,207 | Form 4 |
| 23 | KRALL DAVID Director |
2017-03-06 12:56:14 | 394,875 0 |
394,875 | Form 4 |
| 24 | Dennis Patrick President and CEO |
2018-02-02 15:03:47 | 375,000 0 |
375,000 | Form 4 |
| 25 | Hurley John Chief Revenue Officer |
2023-09-06 16:24:32 | 341,519 0 |
341,519 | Form 4 |
| 26 | BROWN MICHAEL A Director |
2013-09-04 16:35:34 | 326,312 0 |
326,312 | Form 4 |
| 27 | Willis Christopher Shawn Interim CFO |
2016-02-08 17:24:13 | 304,777 0 |
304,777 | Form 4 |
| 28 | Rothman Marc E Director |
2022-09-06 16:44:04 | 297,625 0 |
297,625 | Form 4 |
| 29 | DINARDO LOUIS Director |
2017-03-06 20:51:41 | 285,392 0 |
285,392 | Form 4 |
| 30 | King Elizabeth Chief Revenue Officer |
2021-07-08 15:23:44 | 285,114 0 |
285,114 | Form 4 |
| 31 | Black Philip Director |
2015-09-02 16:38:02 | 265,392 0 |
265,392 | Form 4 |
| 32 | FULLER DALE L Director |
2017-03-03 18:53:37 | 263,890 0 |
263,890 | Form 4 |
| 33 | RAU RAGHAVENDRA Director |
2022-04-26 19:58:11 | 257,874 0 |
257,874 | Form 4 |
| 34 | ORECKLIN LAWRENCE President - SSG |
2004-04-15 14:29:55 | 250,000 0 |
250,000 | Form 5 |
| 35 | BRITTS WILLIAM C SVP, Worldwide Sales & Mktg. |
2018-02-07 14:57:10 | 207,271 0 |
207,271 | Form 4 |
| 36 | Buchsbaum Thomas S Director |
2012-09-05 15:25:57 | 201,393 0 |
201,393 | Form 4 |
| 37 | BARRETT BARBARA Senior VP, Human Resources |
2010-07-01 19:55:21 | 199,422 0 |
199,422 | Form 4 |
| 38 | MARENGI JOSEPH A Director |
2012-09-05 15:27:02 | 191,354 0 |
191,354 | Form 4 |
| 39 | FETTER ELIZABETH A Director |
2012-09-05 15:25:41 | 188,392 0 |
188,392 | Form 4 |
| 40 | PARTRIDGE JOHN Director |
2006-08-30 14:11:57 | 184,937 0 |
184,937 | Form 4 |
| 41 | LAMBERT MICHAEL Chief Financial Officer |
2004-02-23 16:54:28 | 175,000 0 |
175,000 | Form 4 |
| 42 | Ahmad Fuad SVP, Chief Financial Officer |
2018-04-03 12:30:37 | 170,998 0 |
170,998 | Form 4 |
| 43 | Jacoby Rebecca Director |
2022-09-06 16:50:18 | 158,624 0 |
158,624 | Form 4 |
| 44 | FICHTHORN JOHN Director |
2021-08-17 12:14:24 | 154,740 0 |
154,740 | Form 4/A |
| 45 | WOLF DENNIS P Director |
2011-09-02 17:22:52 | 138,776 0 |
138,776 | Form 4 |
| 46 | LOPATIN GERALD Executive VP, Engineering |
2010-07-01 19:57:15 | 129,567 0 |
129,567 | Form 4 |
| 47 | HALL SHAWN D Senior VP, GC & Secretary |
2019-03-12 17:34:44 | 119,999 0 |
119,999 | Form 4 |
| 48 | Press Clifford Director |
2019-09-09 18:22:14 | 118,940 0 |
118,940 | Form 4 |
| 49 | MacPherson Regan J Chief Legal&Compliance Officer |
2021-03-15 17:11:56 | 107,964 0 |
107,964 | Form 4 |
| 50 | Lerner James J President & CEO |
2025-01-17 21:37:20 | 107,804 0 |
107,804 | Form 4 |
| 51 | Auvil Paul R. III Director |
2017-09-05 16:46:10 | 101,735 0 |
101,735 | Form 4 |
| 52 | Stedman Geoff G. SVP, Mktg. & Storage Solutions |
2018-02-07 15:04:23 | 101,086 0 |
101,086 | Form 4 |
| 53 | FRAUENFELDER LEWIS GM Storage Devices |
2005-02-04 21:40:06 | 92,373 0 |
92,373 | Form 4 |
| 54 | ESBER EDWARD M Director |
2011-04-07 17:06:05 | 92,135 0 |
92,135 | Form 4 |
| 55 | Andersen Robert J Director |
2015-09-02 16:36:08 | 87,290 0 |
87,290 | Form 4 |
| 56 | SANCHEZ ADALIO T Director |
2019-03-12 17:35:25 | 84,072 0 |
84,072 | Form 4 |
| 57 | Martella Donald E. Jr. SVP, Engineering |
2020-08-26 16:23:40 | 81,407 0 |
81,407 | Form 4 |
| 58 | Clark Robert S. SVP, Product Operations |
2017-07-11 16:56:42 | 74,703 0 |
74,703 | Form 4 |
| 59 | Panayides Andy VP Corp Development & Strategy |
2007-02-08 14:48:33 | 67,971 0 |
67,971 | Form 4 |
| 60 | Pasternack Bruce A Director |
2009-09-02 18:03:57 | 66,000 0 |
66,000 | Form 4 |
| 61 | Wilderotter Mary Agnes Director |
2005-09-28 19:39:27 | 63,750 0 |
63,750 | Form 4 |
| 62 | GANNON JOHN B President & COO |
2005-03-24 19:26:33 | 60,243 0 |
60,243 | Form 4 |
| 63 | MUTCH JOHN Director |
2017-04-03 16:13:30 | 50,000 0 |
50,000 | Form 4 |
| 64 | KREIGLER GEORGE III GM, Storage Systems |
2005-05-02 17:30:05 | 39,761 0 |
39,761 | Form 4 |
| 65 | Gianella Kenneth P. Chief Financial Officer |
2025-02-05 16:48:16 | 32,402 0 |
32,402 | Form 4 |
| 66 | White Yue Zhou Director |
2024-11-19 19:47:31 | 29,139 0 |
29,139 | Form 4/A |
| 67 | Cabrera Brian E SVP Chief Admin Ofcr & Secy |
2025-01-17 21:29:54 | 27,940 0 |
27,940 | Form 4 |
| 68 | Jaworksi Don Director |
2024-11-19 19:46:30 | 27,675 0 |
27,675 | Form 4/A |
| 69 | Meyrath Hugues Director |
2024-11-19 19:47:21 | 27,675 0 |
27,675 | Form 4/A |
| 70 | EARHART ALAN L Director |
2007-08-30 16:24:22 | 26,809 0 |
26,809 | Form 4 |
| 71 | MAURER JERALD L Exec VP-Human Resources |
2004-04-15 14:15:04 | 26,374 0 |
26,374 | Form 5 |
| 72 | Moorehead Lewis W. Chief Accounting Officer |
2025-04-14 16:32:19 | 24,817 0 |
24,817 | Form 3 |
| 73 | Dalton Stephen P SVP, TSS, Engineering |
2007-11-01 18:45:32 | 23,739 0 |
23,739 | Form 4 |
| 74 | Pinchev Alex Director |
2017-09-05 16:49:07 | 20,344 0 |
20,344 | Form 4 |
| 75 | SANDERSON EDWARD J Director |
2004-09-29 17:23:35 | 18,750 0 |
18,750 | Form 4 |
| 76 | Tracy John R. Director |
2024-11-05 17:44:35 | 15,000 0 |
15,000 | Form 4 |
| 77 | Spanjaard Henk Jan Chief Revenue Officer |
2025-01-17 21:35:35 | 14,903 0 |
14,903 | Form 4 |
| 78 | Nash Laura A. Chief Accounting Officer |
2025-04-04 16:37:51 | 11,652 0 |
11,652 | Form 4 |
| 79 | BROWN DAVID A Director |
2004-03-18 13:46:46 | 3,063 0 |
3,063 | Form 4 |
| 80 | SLAYTON GREGORY W Director |
2004-03-18 15:12:48 | 2,599 0 |
2,599 | Form 4 |
| 81 | KENNEDY KEVIN J Director |
2004-11-02 15:18:04 | 1,763 0 |
1,763 | Form 4 |
| 82 | NELSON BARBARA H Exec VP-Mktg & Strategy |
2004-04-15 14:21:55 | 1,374 0 |
1,374 | Form 5 |
| 83 | Arden Todd Director |
2024-06-17 17:11:16 | 0 0 |
0 | Form 3 |
| 84 | Neumeyer Christopher D. Director |
2022-08-29 21:12:30 | 0 0 |
0 | Form 3 |
| 85 | BR Dialectic Capital Management LLC Dialectic Antithesis Partners LP 10% Owner |
2019-12-05 17:14:57 | 0 0 |
0 | Form 4 |
| 86 | CROWELL CHRISTOPHER See Explanation of Responses 10% Owner |
2014-05-19 21:36:17 | 0 0 |
0 | Form 3 |
| 87 | TERINO EDWARD See Explanation of Responses 10% Owner |
2014-05-19 21:33:43 | 0 0 |
0 | Form 3 |
| 88 | PACIFIC INVESTMENT MANAGEMENT CO LLC 10% Owner |
2025-04-17 16:05:03 | 0 0 |
0 | Form 4 |