Quantum's top three insider shareholders as of September 29, 2026 are John Fichthorn (Director, 14.10Mn shares), Technology Spv Llc Dialectic (TenPercentOwner, 14.10Mn shares), Hugues Meyrath (President Ceo, 118.47K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Technology Spv Llc Dialectic | TenPercentOwner | 14,104,620 | 0 | 14,104,620 | 49.1% | 08 Jun, 2026 |
| 2 | John Fichthorn | Director, TenPercentOwner | 0 | 14,104,620 | 14,104,620 | 49.1% | 08 Jun, 2026 |
| 3 | Hugues Meyrath | President Ceo | 118,468 | 0 | 118,468 | 0.4% | 07 Jul, 2026 |
| 4 | James J Lerner | President Ceo | 110,848 | 0 | 110,848 | 0.4% | 23 Apr, 2025 |
| 5 | Yue Zhou White | Director | 41,139 | 0 | 41,139 | 0.1% | 05 Jan, 2026 |
| 6 | Don Jaworksi | Director | 39,675 | 0 | 39,675 | 0.1% | 05 Jan, 2026 |
| 7 | Kenneth P. Gianella | Chief Financial Officer | 32,402 | 0 | 32,402 | 0.1% | 05 Feb, 2025 |
| 8 | Brian E Cabrera | Svp Chief Admin Ofcr Secy | 28,736 | 0 | 28,736 | 0.1% | 23 Apr, 2025 |
| 9 | John R. Tracy | Director | 27,000 | 0 | 27,000 | 0.1% | 05 Jan, 2026 |
| 10 | William Hillis White | Chief Financial Officer | 25,000 | 0 | 25,000 | 0.1% | 04 Mar, 2026 |
| 11 | Lewis W. Moorehead | Chief Accounting Officer | 24,971 | 0 | 24,971 | 0.1% | 23 Apr, 2025 |
| 12 | Henk Jan Spanjaard | Chief Revenue Officer | 14,903 | 0 | 14,903 | 0.1% | 17 Jan, 2025 |
| 13 | Anthony Craythorne | Chief Revenue Officer | 13,522 | 0 | 13,522 | 0.0% | 05 Aug, 2026 |
| 14 | Tony J Blevins | Director | 13,000 | 0 | 13,000 | 0.0% | 05 Jan, 2026 |
| 15 | James C Clancy | Director | 13,000 | 0 | 13,000 | 0.0% | 05 Jan, 2026 |
| 16 | Laura A. Nash | Chief Accounting Officer | 10,770 | 0 | 10,770 | 0.0% | 07 Jul, 2026 |
| 17 | J Michael Dodson | Senior Vice President, Cfo | 5,440 | 0 | 5,440 | 0.0% | 06 Oct, 2022 |
| 18 | John Hurley | Chief Revenue Officer | 2,134 | 0 | 2,134 | 0.0% | 06 Sep, 2023 |
| 19 | Marc E Rothman | Director | 1,860 | 0 | 1,860 | 0.0% | 06 Sep, 2022 |
| 20 | Raghavendra Rau | Executive Chairman | 1,612 | 0 | 1,612 | 0.0% | 26 Apr, 2022 |
| 21 | Rebecca Jacoby | Director | 991 | 0 | 991 | 0.0% | 06 Sep, 2022 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 03 Aug, 2026 | Anthony Craythorne | Chief Revenue Officer | Disposed S | 1,478 | $10.73 | $15.86K | 13,522 | Direct |
| 02 Jul, 2026 | Hugues Meyrath | President Ceo | Disposed S | 6,232 | $10.51 | $65.50K | 118,468 | Direct |
| 02 Jul, 2026 | Laura A. Nash | Chief Accounting Officer | Disposed S | 260 | $10.51 | $2.73K | 10,770 | Direct |
| 04 Jun, 2026 | Technology Spv Llc Dialectic | TenPercentOwner | Acquired C | 11,020,645 | $5.19 | $57.24Mn | 11,020,645 | Direct |
| 04 Jun, 2026 | John Fichthorn | Director, TenPercentOwner | Acquired C | 11,020,645 | $5.19 | $57.24Mn | 11,020,645 | Indirect |
| 04 Jun, 2026 | Technology Spv Llc Dialectic | TenPercentOwner | Acquired A | 3,083,975 | $5.19 | $16.02Mn | 14,104,620 | Direct |
| 04 Jun, 2026 | John Fichthorn | Director, TenPercentOwner | Acquired A | 3,083,975 | $5.19 | $16.02Mn | 14,104,620 | Indirect |
| 01 Jun, 2026 | Technology Spv Llc Dialectic | TenPercentOwner | Acquired J | 105,911 | — | — | 105,911 | Direct |
| 01 Jun, 2026 | John Fichthorn | Director, TenPercentOwner | Acquired J | 105,911 | — | — | 105,911 | Indirect |
| 04 Jun, 2026 | John Fichthorn | Director, TenPercentOwner | Disposed C | 57,241,228 | — | — | 0 | Indirect |
| 01 Apr, 2026 | Hugues Meyrath | President Ceo | Acquired A | 850,000 | $0.00 | $0 | 850,000 | Direct |
| 01 Apr, 2026 | Anthony Craythorne | Chief Revenue Officer | Acquired A | 148,500 | $0.00 | $0 | 148,500 | Direct |
| 02 Apr, 2026 | Laura A. Nash | Chief Accounting Officer | Disposed S | 109 | $5.44 | $593 | 11,030 | Direct |
| 01 Apr, 2026 | Laura A. Nash | Chief Accounting Officer | Acquired A | 49,500 | $0.00 | $0 | 49,500 | Direct |
| 04 Mar, 2026 | William Hillis White | Chief Financial Officer | Acquired A | 25,000 | $0.00 | $0 | 25,000 | Direct |
| 01 Jan, 2026 | Hugues Meyrath | President Ceo | Acquired A | 62,500 | $0.00 | $0 | 124,700 | Direct |
| 01 Jan, 2026 | John Fichthorn | Director, TenPercentOwner | Acquired A | 12,000 | $0.00 | $0 | 27,271 | Direct |
| 01 Jan, 2026 | John R. Tracy | Director | Acquired A | 12,000 | $0.00 | $0 | 27,000 | Direct |
| 01 Jan, 2026 | Yue Zhou White | Director | Acquired A | 12,000 | $0.00 | $0 | 41,139 | Direct |
| 01 Jan, 2026 | Don Jaworksi | Director | Acquired A | 12,000 | $0.00 | $0 | 39,675 | Direct |