| SC 13G/A | 2024-02-14 | Long Focus Capital Management, LLC | QUANTUM CORP /DE/ | 9,160,819 | 9.6% | EDGAR |
| SC 13G | 2024-02-13 | VANGUARD GROUP INC | QUANTUM CORP /DE/ | 5,018,880 | 5.3% | EDGAR |
| SC 13G/A | 2024-02-12 | Neuberger Berman Group LLC | QUANTUM CORP /DE/ | 14,819,147 | 15.6% | EDGAR |
| SC 13G/A | 2024-01-17 | ADK Soho Fund LP | QUANTUM CORP /DE/ | 7,654,343 | 8.1% | EDGAR |
| SC 13G | 2023-12-04 | ADK Soho Fund LP | QUANTUM CORP /DE/ | 7,295,664 | 7.7% | EDGAR |
| SC 13D/A | 2023-07-14 | PACIFIC INVESTMENT MANAGEMENT CO LLC | QUANTUM CORP /DE/ | 10,248,322 | 17.8% | EDGAR |
| SC 13D/A | 2023-06-14 | PACIFIC INVESTMENT MANAGEMENT CO LLC | QUANTUM CORP /DE/ | 10,248,322 | 17.8% | EDGAR |
| SC 13G | 2023-05-11 | Long Focus Capital Management, LLC | QUANTUM CORP /DE/ | 3,386,722 | 3.2% | EDGAR |
| SC 13G/A | 2023-02-10 | Senvest Management, LLC | QUANTUM CORP /DE/ | 2,550,931 | 2.5% | EDGAR |
| SC 13G/A | 2023-02-10 | Neuberger Berman Group LLC | QUANTUM CORP /DE/ | 15,287,580 | 14.7% | EDGAR |
| SC 13D/A | 2022-08-24 | PACIFIC INVESTMENT MANAGEMENT CO LLC | QUANTUM CORP /DE/ | - | - | EDGAR |
| SC 13D/A | 2022-08-12 | PACIFIC INVESTMENT MANAGEMENT CO LLC | QUANTUM CORP /DE/ | 10,248,322 | 15.4% | EDGAR |
| SC 13D/A | 2022-08-08 | B. Riley Financial, Inc. | QUANTUM CORP /DE/ | 4,099,956 | 4.0% | EDGAR |
| SC 13G/A | 2022-07-08 | BlackRock Inc. | QUANTUM CORP /DE/ | 1,147,297 | 1.1% | EDGAR |
| SC 13D/A | 2022-06-10 | B. Riley Financial, Inc. | QUANTUM CORP /DE/ | 5,921,459 | 5.8% | EDGAR |
| SC 13G/A | 2022-05-20 | Neuberger Berman Group LLC | QUANTUM CORP /DE/ | 16,687,039 | 18.5% | EDGAR |
| SC 13D/A | 2022-04-28 | B. Riley Financial, Inc. | QUANTUM CORP /DE/ | 6,398,132 | 7.1% | EDGAR |
| SC 13D/A | 2022-04-26 | PACIFIC INVESTMENT MANAGEMENT CO LLC | QUANTUM CORP /DE/ | 10,248,322 | 17.3% | EDGAR |
| SC 13D | 2022-03-28 | PACIFIC INVESTMENT MANAGEMENT CO LLC | QUANTUM CORP /DE/ | 6,370,070 | 9.5% | EDGAR |
| SC 13G | 2022-03-11 | BlackRock Inc. | QUANTUM CORP /DE/ | 3,932,343 | 6.6% | EDGAR |