Company · CIK 0000709283 · SIC 3572 — Computer Storage Devices · Nasdaq
QUANTUM CORP /DE/ · QMCO
Insider activity reported against this company. All insider holders · On EDGAR ↗
Reported at this company — common stock
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Aug 3, 2026 SForm 4 → | Aug 5, 4:10 pm EDT | Anthony CraythorneChief Revenue Officer | 1,478 | $10.73 | $15,856 | 13,522 | −9.85% | |
| Jul 2, 2026 SForm 4 → | Jul 7, 4:09 pm EDT | Laura A. NashChief Accounting Officer | 260 | $10.51 | $2,733 | 10,770 | −2.36% | |
| Jul 2, 2026 SForm 4 → | Jul 7, 4:07 pm EDT | Hugues MeyrathPresident & CEO, Director | 6,232 | $10.51 | $65,498 | 118,468 | −5.00% | |
| Jun 4, 2026 ACForm 4 → | Jun 8, 9:54 pm EDT | John FichthornDirector, 10% Owner | 14,104,620 | $5.19 | $73,259,396 | 14,104,620 | — | |
| Jun 4, 2026 ACForm 4 → | Jun 8, 9:21 pm EDT | Dialectic Technology SPV LLC10% Owner | 14,104,620 | $5.19 | $73,259,396 | 14,104,620 | — | |
| Mar 8, 2019 FForm 4 → | Mar 12, 5:35 pm EDT | Adalio T SanchezDirector | 31,221 | $2.44 | $76,179 | 84,072 | — | plan? |
| Mar 8, 2019 FForm 4 → | Mar 12, 5:34 pm EDT | Donald E. Martella Jr.SVP, ENGINEERING | 6,172 | $2.44 | $15,060 | 114,455 | — | plan? |
| Mar 8, 2019 FForm 4 → | Mar 12, 5:34 pm EDT | Shawn D HallSenior VP, GC & Secretary | 14,748 | $2.44 | $35,985 | 119,999 | — | plan? |
| Jan 18, 2019 PForm 4 → | Jan 23, 6:20 pm EST | B. Riley Financial, Inc. +610% Owner | 130,393 | $1.80 | $234,778 | 3,627,662 | +3.73% | plan? |
| Jan 15, 2019 PForm 4 → | Jan 17, 6:02 pm EST | B. Riley Financial, Inc. +610% Owner | 1,333,953 | $1.57 | $2,088,933 | 3,529,077 | +60.8% | plan? |
| Jan 9, 2019 PForm 4 → | Jan 11, 5:47 pm EST | B. Riley Financial, Inc. +610% Owner | 500,000 | $1.59 | $792,500 | 2,195,124 | +29.5% | plan? |
| Dec 31, 2018 PForm 4 → | Jan 3, 2019, 8:03 pm EST | B. Riley Financial, Inc. +610% Owner | 32,428 | $1.87 | $60,633 | 1,695,124 | +1.95% | plan? |
| Dec 27, 2018 PForm 4 → | Dec 28, 7:05 pm EST | B. Riley Financial, Inc. +610% Owner | 516,893 | $1.42 | $731,477 | 1,662,696 | +45.1% | plan? |
| Apr 1, 2018 FForm 4 → | Apr 3, 12:30 pm EDT | Fuad AhmadSVP, Chief Financial Officer | 1,446 | $3.64 | $5,263 | 170,998 | — | plan? |
| Mar 19, 2018 SForm 4 → | Mar 20, 11:46 am EDT | Fuad AhmadSVP, Chief Financial Officer | 961 | $4.16 | $3,998 | 172,470 | −0.55% | plan? |
| Mar 1, 2018 FForm 4 → | Mar 2, 2:38 pm EST | Shawn D HallSenior VP, GC & Secretary | 399 | $3.81 | $1,520 | 134,747 | — | plan? |
| Mar 1, 2018 FForm 4 → | Mar 2, 2:22 pm EST | Fuad AhmadSVP, Chief Financial Officer | 797 | $3.81 | $3,037 | 173,431 | — | plan? |
| Feb 5, 2018 JForm 4 → | Feb 7, 3:04 pm EST | Geoff G. StedmanSVP, Mktg. & Storage Solutions | 625 | $4.68 | $2,922 | 100,461 | — | plan? |
| Feb 5, 2018 JForm 4 → | Feb 7, 2:57 pm EST | William C BrittsSVP, Worldwide Sales & Mktg. | 625 | $4.68 | $2,922 | 206,646 | — | plan? |
| Feb 5, 2018 JForm 4 → | Feb 7, 2:41 pm EST | Fuad AhmadSVP, Chief Financial Officer | 625 | $4.68 | $2,922 | 174,228 | — | plan? |
| Feb 1, 2018 AForm 4 → | Feb 2, 3:03 pm EST | Patrick DennisPresident and CEO | 125,000 | — | — | 125,000 | — | plan? |
| Feb 1, 2018 AForm 4 → | Feb 2, 2:57 pm EST | Adalio T SanchezDirector | 20,645 | — | — | 115,293 | — | plan? |
| Jan 1, 2018 AForm 4 → | Jan 2, 9:24 pm EST | Adalio T SanchezInterim CEO, Director | 40,000 | — | — | 94,648 | — | plan? |
| Dec 1, 2017 AForm 4 → | Dec 4, 4:36 pm EST | Adalio T SanchezInterim CEO, Director | 32,000 | — | — | 54,648 | — | plan? |
| Dec 1, 2017 AForm 4 → | Dec 4, 4:21 pm EST | Fuad AhmadSVP, Chief Financial Officer | 20,000 | — | — | 173,603 | — | plan? |
| Dec 1, 2017 AForm 4 → | Dec 4, 4:18 pm EST | Eric Singer +6Director, 10% Owner | 16,681 | — | — | 16,681 | — | plan? |
| Oct 2, 2017 SForm 4 → | Oct 2, 7:27 pm EDT | Jon W GacekPresident and CEO | 5,793 | $6.19 | $35,882 | 407,207 | −1.40% | plan? |
| Sep 1, 2017 AForm 4 → | Sep 5, 4:56 pm EDT | Adalio T SanchezDirector | 7,404 | — | — | 22,648 | — | plan? |
| Sep 1, 2017 AForm 4 → | Sep 5, 4:54 pm EDT | Marc E RothmanDirector | 7,404 | — | — | 22,648 | — | plan? |
| Sep 1, 2017 AForm 4 → | Sep 5, 4:52 pm EDT | Clifford PressDirector | 22,482 | — | — | 48,107 | — | plan? |
| Sep 1, 2017 AForm 4 → | Sep 5, 4:49 pm EDT | Alex PinchevDirector | 5,621 | — | — | 20,344 | — | plan? |
| Sep 1, 2017 AForm 4 → | Sep 5, 4:46 pm EDT | Paul R. Auvil IIIDirector | 22,482 | — | — | 101,735 | — | plan? |
| Sep 1, 2017 AForm 4 → | Sep 5, 4:43 pm EDT | Raghavendra RauExecutive Chairman, Director | 80,935 | — | — | 87,185 | — | plan? |
| Sep 1, 2017 SForm 4 → | Sep 5, 4:40 pm EDT | Jon W GacekPresident and CEO | 12,254 | $5.50 | $67,393 | 401,414 | −2.96% | plan? |
| Aug 4, 2017 JForm 4 → | Aug 7, 4:18 pm EDT | Geoff G. StedmanSVP, Mktg. & Storage Solutions | 625 | $6.14 | $3,838 | 99,836 | — | plan? |
| Aug 4, 2017 JForm 4 → | Aug 7, 4:14 pm EDT | William C BrittsSVP, Worldwide Sales & Mktg. | 625 | $6.14 | $3,838 | 206,021 | — | plan? |
| Aug 4, 2017 JForm 4 → | Aug 7, 4:07 pm EDT | Donald E. Martella Jr.SVP, Engineering | 625 | $6.14 | $3,838 | 120,627 | — | plan? |
| Jul 17, 2017 SForm 4 → | Jul 18, 4:03 pm EDT | Fuad AhmadSVP, Chief Financial Officer | 17,000 | $8.46 | $143,820 | 153,603 | −9.96% | plan? |
| Jul 10, 2017 SForm 4 → | Jul 11, 4:56 pm EDT | Robert S. ClarkSVP, Product Operations | 61,912 | $8.16 | $505,202 | 74,703 | −45.3% | plan? |
| Jul 3, 2017 SForm 4 → | Jul 5, 2:23 pm EDT | Shawn D HallSenior VP, GC & Secretary | 10,000 | $7.82 | $78,200 | 135,146 | −6.89% | plan? |
| Jul 1, 2017 AFForm 4 → | Jul 5, 2:30 pm EDT | Geoff G. StedmanSVP, Mktg. & Storage Solutions | 18,809 | $7.81 | $64,893 | 99,211 | — | plan? |
| Jul 1, 2017 AFForm 4 → | Jul 5, 2:27 pm EDT | Donald E. Martella Jr.SVP, Engineering | 27,886 | $7.81 | $61,590 | 120,002 | — | plan? |
| Jul 1, 2017 AFForm 4 → | Jul 5, 2:23 pm EDT | Shawn D HallSenior VP, GC & Secretary | 33,198 | $7.81 | $103,076 | 145,146 | — | plan? |
| Jul 1, 2017 AFForm 4 → | Jul 5, 2:17 pm EDT | Jon W GacekPresident and CEO | 88,960 | $7.81 | $288,853 | 413,668 | — | plan? |
| Jul 1, 2017 AFForm 4 → | Jul 5, 2:12 pm EDT | Robert S. ClarkSVP, Product Operations | 32,966 | $7.81 | $101,264 | 136,615 | — | plan? |
| Jul 1, 2017 AFForm 4 → | Jul 5, 2:04 pm EDT | William C BrittsSVP, Worldwide Sales & Mktg. | 36,859 | $7.81 | $92,619 | 205,396 | — | plan? |
| Jul 1, 2017 AFForm 4 → | Jul 5, 1:56 pm EDT | Fuad AhmadSVP, Chief Financial Officer | 29,336 | $7.81 | $33,864 | 170,603 | — | plan? |
| May 31, 2017 AForm 4 → | Jun 1, 1:16 pm EDT | Geoff G. StedmanSVP, Mktg. & Storage Solutions | 22,435 | — | — | 97,020 | — | plan? |
| May 31, 2017 AForm 4 → | Jun 1, 1:13 pm EDT | Donald E. Martella Jr.SVP, Engineering | 17,628 | — | — | 107,888 | — | plan? |
| May 31, 2017 AForm 4 → | Jun 1, 1:10 pm EDT | Shawn D HallSenior VP, GC & Secretary | 17,628 | — | — | 138,344 | — | plan? |
| May 31, 2017 AForm 4 → | Jun 1, 1:07 pm EDT | Jon W GacekPresident and CEO | 44,069 | — | — | 398,678 | — | plan? |
| May 31, 2017 AForm 4 → | Jun 1, 1:03 pm EDT | Robert S. ClarkSVP, Product Operations | 17,628 | — | — | 129,581 | — | plan? |
| May 31, 2017 AForm 4 → | Jun 1, 1:00 pm EDT | William C BrittsSVP, Worldwide Sales & Mktg. | 17,628 | — | — | 192,255 | — | plan? |
| May 31, 2017 AForm 4 → | Jun 1, 12:57 pm EDT | Fuad AhmadSVP, Chief Financial Officer | 32,050 | — | — | 149,939 | — | plan? |
| May 31, 2017 AForm 4 → | Jun 1, 12:54 pm EDT | Marc E RothmanDirector | 11,179 | — | — | 15,244 | — | plan? |
| May 31, 2017 AForm 4 → | Jun 1, 12:52 pm EDT | Adalio T SanchezDirector | 11,179 | — | — | 15,244 | — | plan? |
| May 31, 2017 AForm 4 → | Jun 1, 12:41 pm EDT | Alex PinchevDirector | 14,723 | — | — | 14,723 | — | plan? |
| May 4, 2017 AForm 4 → | May 5, 1:20 pm EDT | Adalio T SanchezDirector | 4,065 | — | — | 4,065 | — | plan? |
| May 4, 2017 AForm 4 → | May 5, 1:17 pm EDT | Marc E RothmanDirector | 4,065 | — | — | 4,065 | — | plan? |
| Apr 1, 2017 FForm 4 → | Apr 4, 1:11 pm EDT | Fuad AhmadSVP, Chief Financial Officer | 106,885 | $0.87 | $92,990 | 943,115 | — | plan? |
| Apr 1, 2017 AForm 4 → | Apr 3, 5:23 pm EDT | Gregg J PowersDirector | 50,000 | — | — | 345,392 | — | plan? |
| Apr 1, 2017 AForm 4 → | Apr 3, 4:16 pm EDT | Raghavendra RauDirector | 50,000 | — | — | 50,000 | — | plan? |
| Apr 1, 2017 AForm 4 → | Apr 3, 4:13 pm EDT | John MutchDirector | 50,000 | — | — | 50,000 | — | plan? |
| Apr 1, 2017 AForm 4 → | Apr 3, 4:10 pm EDT | Clifford PressDirector | 50,000 | — | — | 205,000 | — | plan? |
| Apr 1, 2017 AForm 4 → | Apr 3, 4:06 pm EDT | David Earle RobersonDirector | 50,000 | — | — | 431,784 | — | plan? |
| Apr 1, 2017 AForm 4 → | Apr 3, 4:02 pm EDT | Paul R. Auvil IIIDirector | 50,000 | — | — | 634,030 | — | plan? |
| Mar 2, 2017 AForm 4 → | Mar 6, 1:08 pm EST | Gregg J PowersDirector | 30,000 | — | — | 295,392 | — | plan? |
| Mar 2, 2017 AForm 4 → | Mar 6, 12:56 pm EST | David KrallDirector | 30,000 | — | — | 394,875 | — | plan? |
| Mar 2, 2017 AForm 4 → | Mar 3, 7:12 pm EST | Shawn D HallSenior VP, GC & Secretary | 125,000 | — | — | 965,733 | — | plan? |
| Mar 2, 2017 AForm 4 → | Mar 3, 7:09 pm EST | Fuad AhmadSVP, Chief Financial Officer | 250,000 | — | — | 1,050,000 | — | plan? |
| Mar 2, 2017 AForm 4 → | Mar 3, 7:06 pm EST | David Earle RobersonDirector | 30,000 | — | — | 381,784 | — | plan? |
| Mar 2, 2017 AForm 4 → | Mar 3, 7:03 pm EST | Clifford PressDirector | 30,000 | — | — | 155,000 | — | plan? |
| Mar 2, 2017 AForm 4 → | Mar 3, 6:53 pm EST | Dale L FullerDirector | 30,000 | — | — | 263,890 | — | plan? |
| Mar 2, 2017 AForm 4 → | Mar 3, 6:50 pm EST | Paul R. Auvil IIIDirector | 30,000 | — | — | 584,030 | — | plan? |
| Feb 3, 2017 JForm 4 → | Feb 6, 6:04 pm EST | Donald E. Martella Jr.SVP, Engineering | 2,245 | $0.5187 | $1,164 | 722,086 | — | plan? |
| Feb 3, 2017 JForm 4 → | Feb 6, 6:00 pm EST | William C BrittsSVP, Worldwide Sales & Mktg. | 2,245 | $0.5187 | $1,164 | 1,397,020 | — | plan? |
| Feb 3, 2017 JForm 4 → | Feb 6, 5:57 pm EST | Geoff G. StedmanSVP, Mktg. & Storage Solutions | 2,245 | $0.5187 | $1,164 | 596,680 | — | plan? |
| Dec 6, 2016 SForm 4 → | Dec 7, 6:17 pm EST | Jeffrey C Smith +210% Owner | 7,850,000 | $0.9112 | $7,153,130 | 1,500,174 | −84.0% | plan? |
| Dec 6, 2016 SForm 4 → | Dec 7, 6:10 pm EST | Starboard Value LP +810% Owner | 7,850,000 | $0.9112 | $7,153,130 | 1,500,174 | −84.0% | plan? |
| Dec 1, 2016 SForm 4 → | Dec 5, 7:04 pm EST | Jeffrey C Smith +210% Owner | 3,600,000 | $0.9201 | $3,312,260 | 3,066,390 | −54.0% | plan? |
| Dec 1, 2016 SForm 4 → | Dec 5, 7:00 pm EST | Starboard Value LP +810% Owner | 3,600,000 | $0.9201 | $3,312,260 | 3,066,390 | −54.0% | plan? |
| Aug 5, 2016 JForm 4 → | Aug 8, 4:28 pm EDT | Geoff G. StedmanSVP, Mktg. & Storage Solutions | 5,000 | $0.3995 | $1,998 | 594,435 | — | plan? |
| Aug 5, 2016 JForm 4 → | Aug 8, 4:26 pm EDT | Donald E. Martella Jr.SVP, Engineering | 5,000 | $0.3995 | $1,998 | 719,841 | — | plan? |
| Aug 5, 2016 JForm 4 → | Aug 8, 4:24 pm EDT | William C BrittsSVP, Worldwide Sales & Mktg. | 5,000 | $0.3995 | $1,998 | 1,394,775 | — | plan? |
| Jul 1, 2016 AForm 4 → | Jul 6, 1:02 pm EDT | Geoff G. StedmanSVP, StorNext Solutions | 180,000 | — | — | 589,435 | — | plan? |
| Jul 1, 2016 AFForm 4 → | Jul 6, 12:53 pm EDT | Donald E. Martella Jr.SVP, Engineering | 230,058 | $0.4194 | $20,994 | 714,841 | — | plan? |
| Jul 1, 2016 AFForm 4 → | Jul 5, 7:45 pm EDT | Jon W GacekPresident and CEO | 724,529 | $0.4194 | $115,137 | 2,836,878 | — | plan? |
| Jul 1, 2016 AFForm 4 → | Jul 5, 7:41 pm EDT | Robert S. ClarkSVP, Product Operations | 270,335 | $0.4194 | $37,886 | 895,629 | — | plan? |
| Jul 1, 2016 AForm 4 → | Jul 5, 7:38 pm EDT | William C BrittsSVP, Worldwide Sales & Mktg. | 180,000 | — | — | 1,389,775 | — | plan? |
| Jul 1, 2016 AFForm 4 → | Jul 5, 7:34 pm EDT | Shawn D HallSenior VP, GC & Secretary | 274,537 | $0.4194 | $39,649 | 840,733 | — | plan? |
| May 1, 2016 AForm 4 → | May 2, 4:21 pm EDT | Fuad AhmadSVP, Chief Financial Officer | 800,000 | — | — | 800,000 | — | plan? |
| Apr 1, 2016 AForm 4 → | Apr 5, 4:13 pm EDT | Clifford PressDirector | 125,000 | — | — | 125,000 | — | plan? |
| Mar 24, 2016 AGForm 4 → | Mar 6, 2017, 8:51 pm EST | Louis DinardoDirector | 90,000 | — | — | 285,392 | — | plan? late |
| Mar 16, 2016 SForm 4 → | Mar 18, 8:28 pm EDT | Jeffrey C Smith +210% Owner | 1,726,004 | $0.6168 | $1,064,643 | 3,784,654 | −31.3% | plan? |
| Mar 16, 2016 SForm 4 → | Mar 18, 8:26 pm EDT | Starboard Value LP +810% Owner | 1,726,004 | $0.6168 | $1,064,643 | 3,784,654 | −31.3% | plan? |
| Mar 1, 2016 FForm 4 → | May 2, 4:48 pm EDT | Geoff G. StedmanSVP, StorNext Solutions | 36,155 | $0.5001 | $18,081 | 375,435 | — | plan? late |
| Feb 5, 2016 JForm 4 → | Feb 8, 5:30 pm EST | Geoff G. StedmanSVP, StorNext Solutions | 5,000 | $0.3995 | $1,998 | 411,590 | — | plan? |
| Feb 5, 2016 JForm 4 → | Feb 8, 5:28 pm EST | Donald E. Martella Jr.SVP, Engineering | 5,000 | $0.3995 | $1,998 | 569,599 | — | plan? |
| Feb 5, 2016 JForm 4 → | Feb 8, 5:26 pm EST | William C BrittsSVP, Worldwide Sales & Mktg. | 5,000 | $0.3995 | $1,998 | 1,209,775 | — | plan? |
| Feb 5, 2016 JForm 4 → | Feb 8, 5:24 pm EST | Christopher Shawn WillisInterim CFO | 5,000 | $0.3995 | $1,998 | 299,777 | — | plan? |
Reported at this company — derivatives (options, RSUs, warrants)
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Jun 1, 2026 CJForm 4 → | Jun 8, 9:54 pm EDT | John FichthornDirector, 10% Owner | 57,347,139 | — | — | 0 | — | late |
| Jun 1, 2026 CJForm 4 → | Jun 8, 9:21 pm EDT | Dialectic Technology SPV LLC10% Owner | 105,911 | — | — | 0 | — | late |
| Feb 1, 2018 AForm 4 → | Feb 2, 3:03 pm EST | Patrick DennisPresident and CEO | 250,000 | $6.20 | $1,550,000 | 250,000 | — | |
| Oct 9, 2015 PForm 4 → | Oct 13, 9:48 pm EDT | Jeffrey C Smith +210% Owner | — | — | — | — | — | |
| Oct 9, 2015 PForm 4 → | Oct 13, 9:47 pm EDT | Starboard Value LP +810% Owner | — | — | — | — | — | |
| Jan 28, 2015 SForm 4 → | Jan 30, 5:30 pm EST | SOROS FUND MANAGEMENT LLC +210% Owner | — | — | — | — | — |