Quantum Corp /De/ (QMCO) Insider Ownership

Historic Insider Ownership Trends

QMCO's three largest insider shareholders as of March 23, 2026 are Riley Financial, Inc. B. (TenPercentOwner, 2.25Mn shares), J Michael Dodson (Senior Vice President, Cfo, 870.37K shares), John Hurley (Chief Revenue Officer, 341.52K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Riley Financial, Inc. B. 0 2,248,511 28 Apr, 2021
J Michael Dodson Senior Vice President, Cfo 870,372 0 06 Oct, 2022
John Hurley Chief Revenue Officer 341,519 0 06 Sep, 2023
Marc E Rothman 297,625 0 06 Sep, 2022
Elizabeth King Chief Revenue Officer 285,114 0 08 Jul, 2021
Raghavendra Rau 257,874 0 26 Apr, 2022
Rebecca Jacoby 158,624 0 06 Sep, 2022
Hugues Meyrath President Ceo 124,700 0 05 Jan, 2026
James J Lerner President Ceo 110,848 0 23 Apr, 2025
Yue Zhou White 41,139 0 05 Jan, 2026
Don Jaworksi 39,675 0 05 Jan, 2026
Kenneth P. Gianella Chief Financial Officer 32,402 0 05 Feb, 2025
Brian E Cabrera Svp Chief Admin Ofcr Secy 28,736 0 23 Apr, 2025
John Fichthorn 27,271 0 05 Jan, 2026
John R. Tracy 27,000 0 05 Jan, 2026
William Hillis White Chief Financial Officer 25,000 0 04 Mar, 2026
Lewis W. Moorehead Chief Accounting Officer 24,971 0 23 Apr, 2025
Anthony Craythorne Chief Revenue Officer 15,000 0 05 Jan, 2026
Henk Jan Spanjaard Chief Revenue Officer 14,903 0 17 Jan, 2025
Tony J Blevins 13,000 0 05 Jan, 2026
James C Clancy 13,000 0 05 Jan, 2026
Laura A. Nash Chief Accounting Officer 11,139 0 03 Oct, 2025

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
04 Mar, 2026 William Hillis White Common Stock A 25,000 $0.00 25,000 D A
01 Jan, 2026 John R. Tracy Common Stock A 12,000 $0.00 27,000 D A
01 Jan, 2026 James C Clancy Common Stock A 12,000 $0.00 13,000 D A
01 Jan, 2026 John Fichthorn Common Stock A 12,000 $0.00 27,271 D A
01 Jan, 2026 Anthony Craythorne Common Stock A 15,000 $0.00 15,000 D A
01 Jan, 2026 Don Jaworksi Common Stock A 12,000 $0.00 39,675 D A
01 Jan, 2026 Tony J Blevins Common Stock A 12,000 $0.00 13,000 D A
01 Jan, 2026 Hugues Meyrath Common Stock A 62,500 $0.00 124,700 D A
01 Jan, 2026 Yue Zhou White Common Stock A 12,000 $0.00 41,139 D A
01 Jan, 2026 Hugues Meyrath Employee Stock Option (right to buy) A 50,000 $0.00 50,000 D A
01 Nov, 2025 James C Clancy Common Stock A 1,000 $0.00 1,000 D A
01 Nov, 2025 Tony J Blevins Common Stock A 1,000 $0.00 1,000 D A
01 Nov, 2025 Hugues Meyrath Common Stock A 37,500 $0.00 62,200 D A
01 Nov, 2025 Hugues Meyrath Employee Stock Option (right to buy) A 50,000 $0.00 50,000 D A
02 Oct, 2025 Hugues Meyrath Common Stock D 2,975 $10.86 24,700 D S
01 Oct, 2025 Laura A. Nash Common Stock A 500 $0.00 11,868 D A
01 Oct, 2025 Laura A. Nash Common Stock D 118 $9.91 11,750 D S
02 Oct, 2025 Laura A. Nash Common Stock D 611 $10.86 11,139 D S
12 Sep, 2025 Laura A. Nash Common Stock D 284 $7.40 11,368 D S
01 May, 2025 John Fichthorn Common Stock A 4,405 $0.00 15,271 D A