QMCO

SEC source: 0000709283-24-000027 · wk-form4_1729545382.xml · nonDerivative · entry 1

Meyrath Hugues · CIK 0001419111 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 85,498

F1 · shares: Grant of fully vested Restricted Stock Units (RSUs), each of which represents a right to receive one share of common stock of QMCO.

SEC source: 0000709283-24-000026 · wk-form4_1729545372.xml · nonDerivative · entry 1

Tracy John R. · CIK 0002027146 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,000

F1 · shares: Grant of Restricted Stock Units (RSUs), each of which represents a contingent right to receive one share of common stock of QMCO. The RSUs vest in full on the earlier of October 1, 2025 or the date of the Company's next annual stockholder meeting, subject to continued service on the Company's Board of Directors. Delayed filing arose from an error related to effecting the reverse stock split within QMCOs stock plan administration platform and the resulting delay of the distribution of the equity award agreement to reporting person. Reporting person has elected to continue to use the grant date for the reported transaction date notwithstanding the delayed distribution of the equity award agreement.

SEC source: 0000709283-24-000025 · wk-form4_1729545362.xml · nonDerivative · entry 1

Nash Laura A. · CIK 0001979364 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 99,804

F1 · shares: Grant of Restricted Stock Units (RSUs), each of which represents a contingent right to receive one share of common stock of QMCO. Vesting is subject to continued employment with QMCO through the service vesting date, which occurs in three equal annual installments on October 1, 2025, October 1, 2026 and October 1, 2027. Delayed filing arose from an error related to effecting the reverse stock split within QMCOs stock plan administration platform and the resulting delay of the distribution of the equity award agreement to reporting person. Reporting person has elected to continue to use the grant date for the reported transaction date notwithstanding the delayed distribution of the equity award agreement.

SEC source: 0000950170-24-097747 · ownership.xml · derivative · entry 1

PACIFIC INVESTMENT MANAGEMENT CO LLC · CIK 0001163368 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 4,481,169

Underlying: Common Stock · 4,481,169 shares

Expires 2034-08-13

F1 · price: The reported securities were issued in connection with the Term Loan Amendment described in the Form 8-K filed by Quantum Corporation (CIK: 0000709283) on August 14, 2024. For more information on the warrants, please refer to the previously referenced Form 8-K. The securities are held by certain funds and accounts for which the Reporting Person serves as investment manager, advisor or sub-advisor, including (i) OC II FIE V LP, which holds 2,980,860 shares of common stock par value $0.01 per share (the "Common Stock") and warrants to purchase 6,682,488 shares of Common Stock and (ii) OC III LVS XL LP, which holds 7,267,462 shares of Common Stock and warrants to purchase 6,875,572 shares of common stock.

F2 · price: (Continued from footnote 1) Each of the aforementioned warrants include provisions that restrict the exercise of such warrants to the extent that such exercise would (a) cause the Reporting Person and its affiliates to beneficially own more than 19.99% of the issuer's total issued and outstanding common stock or (b) would otherwise result in a change of control of the issuer within the meaning of Nasdaq Listing Rule 5635(b). The Reporting Person disclaims beneficial ownership in the reported securities, except to the extent of its pecuniary interest therein.

F1 · ownership.nature: The reported securities were issued in connection with the Term Loan Amendment described in the Form 8-K filed by Quantum Corporation (CIK: 0000709283) on August 14, 2024. For more information on the warrants, please refer to the previously referenced Form 8-K. The securities are held by certain funds and accounts for which the Reporting Person serves as investment manager, advisor or sub-advisor, including (i) OC II FIE V LP, which holds 2,980,860 shares of common stock par value $0.01 per share (the "Common Stock") and warrants to purchase 6,682,488 shares of Common Stock and (ii) OC III LVS XL LP, which holds 7,267,462 shares of Common Stock and warrants to purchase 6,875,572 shares of common stock.

F2 · ownership.nature: (Continued from footnote 1) Each of the aforementioned warrants include provisions that restrict the exercise of such warrants to the extent that such exercise would (a) cause the Reporting Person and its affiliates to beneficially own more than 19.99% of the issuer's total issued and outstanding common stock or (b) would otherwise result in a change of control of the issuer within the meaning of Nasdaq Listing Rule 5635(b). The Reporting Person disclaims beneficial ownership in the reported securities, except to the extent of its pecuniary interest therein.

SEC source: 0000950170-24-083742 · ownership.xml · derivative · entry 1

PACIFIC INVESTMENT MANAGEMENT CO LLC · CIK 0001163368 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 375,000

Underlying: Common Stock · 375,000 shares

Expires 2034-07-11

F1 · price: The reported securities were issued in connection with the Term Loan Amendment described in the Form 8-K filed by Quantum Corporation (CIK: 0000709283) on July 12, 2024. For more information on the warrants, please refer to the previously referenced Form 8-K. The securities are held by certain funds and accounts for which the Reporting Person serves as investment manager, advisor or sub-advisor, including (i) OC II FIE V LP, which holds 2,980,860 shares of common stock par value $0.01 per share (the "Common Stock") and warrants to purchase 6,682,488 shares of Common Stock and (ii) OC III LVS XL LP, which holds 7,267,462 shares of Common Stock and warrants to purchase 2,394,403 shares of common stock. The Reporting Person disclaims beneficial ownership in the reported securities, except to the extent of its pecuniary interest therein.

F1 · ownership.nature: The reported securities were issued in connection with the Term Loan Amendment described in the Form 8-K filed by Quantum Corporation (CIK: 0000709283) on July 12, 2024. For more information on the warrants, please refer to the previously referenced Form 8-K. The securities are held by certain funds and accounts for which the Reporting Person serves as investment manager, advisor or sub-advisor, including (i) OC II FIE V LP, which holds 2,980,860 shares of common stock par value $0.01 per share (the "Common Stock") and warrants to purchase 6,682,488 shares of Common Stock and (ii) OC III LVS XL LP, which holds 7,267,462 shares of Common Stock and warrants to purchase 2,394,403 shares of common stock. The Reporting Person disclaims beneficial ownership in the reported securities, except to the extent of its pecuniary interest therein.

SEC source: 0000950170-24-066221 · ownership.xml · derivative · entry 1

PACIFIC INVESTMENT MANAGEMENT CO LLC · CIK 0001163368 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 750,000

Underlying: Common Stock · 750,000 shares

Expires 2034-05-24

F1 · price: The reported securities were issued in connection with the Term Loan Amendment and Waiver described in the Form 8-K filed by Quantum Corporation (CIK: 0000709283) on May 29, 2024. For more information on the warrants, please refer to the previously referenced Form 8-K. The securities are held by certain funds and accounts for which the Reporting Person serves as investment manager, advisor or sub-advisor, including (i) OC II FIE V LP, which holds 2,980,860 shares of common stock par value $0.01 per share (the "Common Stock") and warrants to purchase 6,554,190 shares of Common Stock and (ii) OC III LVS XL LP, which holds 7,267,462 shares of Common Stock and warrants to purchase 2,000,000 shares of common stock. The Reporting Person disclaims beneficial ownership in the reported securities, except to the extent of its pecuniary interest therein.

F1 · ownership.nature: The reported securities were issued in connection with the Term Loan Amendment and Waiver described in the Form 8-K filed by Quantum Corporation (CIK: 0000709283) on May 29, 2024. For more information on the warrants, please refer to the previously referenced Form 8-K. The securities are held by certain funds and accounts for which the Reporting Person serves as investment manager, advisor or sub-advisor, including (i) OC II FIE V LP, which holds 2,980,860 shares of common stock par value $0.01 per share (the "Common Stock") and warrants to purchase 6,554,190 shares of Common Stock and (ii) OC III LVS XL LP, which holds 7,267,462 shares of Common Stock and warrants to purchase 2,000,000 shares of common stock. The Reporting Person disclaims beneficial ownership in the reported securities, except to the extent of its pecuniary interest therein.

SEC source: 0000709283-24-000002 · wk-form4_1712179641.xml · nonDerivative · entry 1

Nash Laura A. · CIK 0001979364 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 92,304

F1 · shares: Grant of Restricted Stock Units (RSUs), each of which represents a contingent right to receive one share of common stock of QMCO. Vesting is subject to continued employment with QMCO through the service vesting date, which occurs in three equal annual installments on April 1, 2025, April 1, 2026 and April 1, 2027.

SEC source: 0000709283-24-000011 · wk-form4_1713907711.xml · nonDerivative · entry 1

Gianella Kenneth P. · CIK 0001677143 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 375,000

F1 · security: Granted as annual refresh grant shares. Grant of Restricted Stock Units (RSUs), each of which represents a contingent right to receive one share of common stock of QMCO. Vesting is subject to continued employment with QMCO through the service vesting date, which occurs in three equal annual installments on January 1, 2025, January 1, 2026 and January 1, 2027. Delayed filing arose from an administrative error related to implementing and configuring QMCO's new stock plan administration platform.

SEC source: 0000709283-24-000010 · wk-form4_1713907648.xml · nonDerivative · entry 1

Lerner James J · CIK 0001602567 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,904,908

F1 · security: Granted as annual refresh grant shares. Grant of Restricted Stock Units (RSUs), each of which represents a contingent right to receive one share of common stock of QMCO. Vesting is subject to continued employment with QMCO through the service vesting date, which occurs in three equal annual installments on January 1, 2025, January 1, 2026 and January 1, 2027. Delayed filing arose from an administrative error related to implementing and configuring QMCO's new stock plan administration platform.

SEC source: 0000709283-24-000009 · wk-form4_1713907593.xml · nonDerivative · entry 1

Spanjaard Henk Jan · CIK 0002000334 · Chief Revenue Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 121,112

F1 · security: Granted as annual refresh grant shares. Grant of Restricted Stock Units (RSUs), each of which represents a contingent right to receive one share of common stock of QMCO. Vesting is subject to continued employment with QMCO through the service vesting date, which occurs in three equal annual installments on January 1, 2025, January 1, 2026 and January 1, 2027. Delayed filing arose from an administrative error related to implementing and configuring QMCO's new stock plan administration platform.

SEC source: 0000709283-24-000008 · wk-form4_1713907556.xml · nonDerivative · entry 1

Cabrera Brian E · CIK 0001314901 · SVP Chief Admin Ofcr & Secy

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 371,887

F1 · security: Granted as annual refresh grant shares. Grant of Restricted Stock Units (RSUs), each of which represents a contingent right to receive one share of common stock of QMCO. Vesting is subject to continued employment with QMCO through the service vesting date, which occurs in three equal annual installments on January 1, 2025, January 1, 2026 and January 1, 2027. Delayed filing arose from an administrative error related to implementing and configuring QMCO's new stock plan administration platform.

SEC source: 0000709283-23-000055 · wk-form4_1699043889.xml · nonDerivative · entry 1

Cabrera Brian E · CIK 0001314901 · SVP Chief Admin Ofcr & Secy

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 221,887

F1 · shares: Represents the number of shares automatically sold, on a non-discretionary basis, to cover tax withholding obligations in connection with the vesting of restricted stock units granted on November 1, 2021 and November 1, 2022.

SEC source: 0000709283-23-000053 · wk-form4_1697147001.xml · nonDerivative · entry 1

Lerner James J · CIK 0001602567 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,704,908

F1 · shares: Represents the number of shares automatically sold, on a non-discretionary basis, to cover tax withholding obligations in connection with the vesting of restricted stock units granted on October 1, 2021.

SEC source: 0000709283-23-000050 · wk-form4_1696613773.xml · nonDerivative · entry 1

Cabrera Brian E · CIK 0001314901 · SVP Chief Admin Ofcr & Secy

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 227,430

F1 · shares: Represents the number of shares automatically sold, on a non-discretionary basis, to cover tax withholding obligations in connection with the vesting of restricted stock units granted on October 1, 2021.

SEC source: 0000709283-23-000049 · wk-form4_1696613760.xml · nonDerivative · entry 1

Nash Laura A. · CIK 0001979364 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 67,304

F1 · shares: Represents the number of shares automatically sold, on a non-discretionary basis, to cover tax withholding obligations in connection with the vesting of restricted stock units granted on October 1, 2021.

SEC source: 0000709283-23-000034 · wk-form4_1694031856.xml · nonDerivative · entry 1

Hurley John · CIK 0001879356 · Chief Revenue Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 341,519

F1 · shares: Represents the number of shares automatically sold, on a non-discretionary basis, to cover tax withholding obligations in connection with the vesting of restricted stock units granted on September 1, 2021.

F2 · price: Represents a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $0.62 to $0.6201, inclusive. The reporting person undertakes to provide upon request by the Securities and Exchange Commission, the issuer, or a securityholder of the issuer detailed information regarding the price and number of shares sold within the range indicated.

SEC source: 0000709283-23-000031 · wk-form4_1693944191.xml · derivative · entry 2

Gianella Kenneth P. · CIK 0001677143 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 25,000 shares

Expires 2028-09-01

F2 · derivative.exercise_price: Grant of Performance-Based Restricted Stock Units ("PSUs"), each of which represents a contingent right to receive one share of common stock of QMCO, with vesting subject to the achievement of specified level of the average closing price of a share of QMCO common stock during any one hundred (100) calendar day period occurring between September 1, 2023 and September 1, 2028. Vesting is subject to continued employment with QMCO through the later of the achievement date or service vesting date, which will occur 36 months from the grant date on September 1, 2026.

F2 · derivative.exercise_date: Grant of Performance-Based Restricted Stock Units ("PSUs"), each of which represents a contingent right to receive one share of common stock of QMCO, with vesting subject to the achievement of specified level of the average closing price of a share of QMCO common stock during any one hundred (100) calendar day period occurring between September 1, 2023 and September 1, 2028. Vesting is subject to continued employment with QMCO through the later of the achievement date or service vesting date, which will occur 36 months from the grant date on September 1, 2026.

SEC source: 0000709283-23-000031 · wk-form4_1693944191.xml · nonDerivative · entry 1

Gianella Kenneth P. · CIK 0001677143 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 225,000

F1 · security: Grant of Restricted Stock Units ("RSUs"), each of which represents a contingent right to receive one share of common stock of QMCO. Vesting is subject to continued employment with QMCO through the service vesting date, which occurs in three equal annual installments on September 1, 2024, September 1, 2025 and September 1, 2026.

SEC source: 0000709283-23-000025 · wk-form4_1689193953.xml · nonDerivative · entry 1

Cabrera Brian E · CIK 0001314901 · SVP Chief Admin Ofcr & Secy

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 228,372

F1 · shares: Represents the number of shares automatically sold, on a non-discretionary basis, to cover tax withholding obligations in connection with the vesting of restricted stock units granted on July 1, 2022.

SEC source: 0000709283-23-000023 · wk-form4_1689193712.xml · nonDerivative · entry 1

Lerner James J · CIK 0001602567 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,740,953

F1 · shares: Represents the number of shares automatically sold, on a non-discretionary basis, to cover tax withholding obligations in connection with the vesting of restricted stock units and performance-based stock units granted on July 1, 2020, and restricted stock units on July 1, 2022.

F2 · balance_after: Includes 5,035 shares acquired under Quantum Corporation's Employee Stock Purchase Plan on February 3, 2023.

SEC source: 0000709283-23-000022 · wk-form4_1689193660.xml · nonDerivative · entry 1

Hurley John · CIK 0001879356 · Chief Revenue Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 384,181

F1 · shares: Represents the number of shares automatically sold, on a non-discretionary basis, to cover tax withholding obligations in connection with the vesting of restricted stock units granted on July 1, 2022.

F2 · balance_after: Includes 5,881 shares acquired under Quantum Corporation's Employee Stock Purchase Plan on February 3, 2023.

SEC source: 0000709283-23-000021 · wk-form4_1689193568.xml · nonDerivative · entry 1

Nash Laura A. · CIK 0001979364 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 68,192

F1 · shares: Represents the number of shares automatically sold, on a non-discretionary basis, to cover tax withholding obligations in connection with the vesting of restricted stock units granted on July 1, 2020, and July 1, 2022.

SEC source: 0000709283-23-000016 · wk-form4_1688593561.xml · derivative · entry 2

Nash Laura A. · CIK 0001979364 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,000

Underlying: Common Stock · 50,000 shares

Expires 2028-07-01

F2 · derivative.exercise_price: Grant of Performance-Based Restricted Stock Units ("PSUs"), each of which represents a contingent right to receive one share of common stock of QMCO, with vesting subject to the achievement of specified level of the average closing price of a share of QMCO common stock during any one hundred (100) calendar day period occurring between July 1, 2023 and July 1, 2028. Vesting is subject to continued employment with QMCO through the later of the achievement date or service vesting date, which will occur 36 months from the grant date on July 1, 2026.

F2 · derivative.exercise_date: Grant of Performance-Based Restricted Stock Units ("PSUs"), each of which represents a contingent right to receive one share of common stock of QMCO, with vesting subject to the achievement of specified level of the average closing price of a share of QMCO common stock during any one hundred (100) calendar day period occurring between July 1, 2023 and July 1, 2028. Vesting is subject to continued employment with QMCO through the later of the achievement date or service vesting date, which will occur 36 months from the grant date on July 1, 2026.

SEC source: 0000709283-23-000016 · wk-form4_1688593561.xml · nonDerivative · entry 1

Nash Laura A. · CIK 0001979364 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 71,792

F1 · security: Grant of Restricted Stock Units ("RSUs"), each of which represents a contingent right to receive one share of common stock of QMCO. Vesting is subject to continued employment with QMCO through the service vesting date, which occurs in three equal annual installments on July 1, 2024, July 1, 2025 and July 1, 2026.

SEC source: 0000899243-23-015339 · doc4.xml · derivative · entry 1

PACIFIC INVESTMENT MANAGEMENT CO LLC · CIK 0001163368 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 1,250,000

Underlying: Common Stock · 1,250,000 shares

Expires 2033-06-01

F1 · ownership.nature: The reported securities were issued in connection with the Term Loan Amendment described in the Form 8-K filed by Quantum Corporation (CIK: 0000709283) on June 6, 2023. For more information on the warrants, please refer to the previously referenced Form 8-K. The securities are held by certain funds and accounts for which the Reporting Person serves as investment manager, advisor or sub-advisor, including (i) OC II FIE V LP, which holds 2,980,860 shares of common stock par value $0.01 per share (the Common Stock") and warrants to purchase 6,525,289 shares of Common Stock and (ii) OC III LVS XL LP, which holds 7,267,462 shares of Common Stock and warrants to purchase 1,250,000 shares of common stock. The Reporting Person disclaims beneficial ownership in the reported securities, except to the extent of its pecuniary interest therein.

SEC source: 0000709283-23-000009 · wf-form4_168323723498738.xml · nonDerivative · entry 1

Cabrera Brian E · CIK 0001314901 · SVP Chief Admin Ofcr & Secy

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 244,046

F1 · shares: Represents the number of shares automatically sold, on a non-discretionary basis, to cover tax withholding obligations in connection with the vesting of restricted stock units granted on May 1, 2021.

SEC source: 0000709283-23-000007 · wf-form4_167545898819096.xml · derivative · entry 2

Gianella Kenneth P. · CIK 0001677143 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 24,975 shares

Expires 2028-02-01

F2 · derivative.exercise_price: Grant of Performance-Based Restricted Stock Units ("PSUs"), each of which represents a contingent right to receive one share of common stock of QMCO, with vesting subject to the achievement of specified level of the average closing price of a share of QMCO common stock during any one hundred (100) calendar day period occurring between February 1, 2023 and February 1, 2028. Vesting is subject to continued employment with QMCO through the later of the achievement date or service vesting date, which will occur 36 months from the grant date on February 1, 2026.

F2 · derivative.exercise_date: Grant of Performance-Based Restricted Stock Units ("PSUs"), each of which represents a contingent right to receive one share of common stock of QMCO, with vesting subject to the achievement of specified level of the average closing price of a share of QMCO common stock during any one hundred (100) calendar day period occurring between February 1, 2023 and February 1, 2028. Vesting is subject to continued employment with QMCO through the later of the achievement date or service vesting date, which will occur 36 months from the grant date on February 1, 2026.

SEC source: 0000709283-23-000007 · wf-form4_167545898819096.xml · nonDerivative · entry 1

Gianella Kenneth P. · CIK 0001677143 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 175,000

F1 · security: Grant of Restricted Stock Units ("RSUs"), each of which represents a contingent right to receive one share of common stock of QMCO. Vesting is subject to continued employment with QMCO through the service vesting date, which occurs in three equal annual installments on February 1, 2024, February 1, 2025 and February 1, 2026.

SEC source: 0000709283-22-000052 · wf-form4_166872016967378.xml · nonDerivative · entry 1

Jaworksi Don · CIK 0001947510 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 73,498

F1 · shares: Grant of Restricted Stock Units ("RSUs"), each of which represents a contingent right to receive one share of common stock of QMCO (the "Company"). The RSUs vest in full on the date of the Company's next annual stockholder meeting, subject to continued service on the Company's Board of Directors.

SEC source: 0000709283-22-000054 · wf-form4_166967696257249.xml · nonDerivative · entry 1

Meyrath Hugues · CIK 0001419111 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 73,498

F1 · shares: Grant of Restricted Stock Units ("RSUs"), each of which represents a contingent right to receive one share of common stock of QMCO (the "Company"). The RSUs vest in full on the date of the Company's next annual stockholder meeting, subject to continued service on the Company's Board of Directors.

SEC source: 0000709283-22-000050 · wf-form4_166750603055839.xml · nonDerivative · entry 1

Cabrera Brian E · CIK 0001314901 · SVP Chief Admin Ofcr & Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 274,961

F1 · shares: Represents the number of shares automatically sold, on a non-discretionary basis, to cover tax withholding obligations in connection with the vesting of restricted stock units granted on November 1, 2021.

SEC source: 0000709283-22-000049 · wf-form4_166742189022476.xml · derivative · entry 2

Cabrera Brian E · CIK 0001314901 · SVP Chief Admin Ofcr & Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: Not disclosed

Underlying: Common Stock · 8,325 shares

Expires 2027-11-01

F2 · derivative.exercise_price: Grant of Performance-Based Restricted Stock Units ("PSUs"), each of which represents a contingent right to receive one share of common stock of QMCO, with vesting subject to the achievement of specified level of the average closing price of a share of QMCO common stock during any one hundred (100) calendar day period occurring between November 1, 2022 and November 1, 2027. Vesting is subject to continued employment with QMCO through the later of the achievement date or service vesting date, which will occur 36 months from the grant date on November 1, 2025.

F2 · derivative.exercise_date: Grant of Performance-Based Restricted Stock Units ("PSUs"), each of which represents a contingent right to receive one share of common stock of QMCO, with vesting subject to the achievement of specified level of the average closing price of a share of QMCO common stock during any one hundred (100) calendar day period occurring between November 1, 2022 and November 1, 2027. Vesting is subject to continued employment with QMCO through the later of the achievement date or service vesting date, which will occur 36 months from the grant date on November 1, 2025.

SEC source: 0000709283-22-000049 · wf-form4_166742189022476.xml · nonDerivative · entry 1

Cabrera Brian E · CIK 0001314901 · SVP Chief Admin Ofcr & Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 275,824

F1 · security: Grant of Restricted Stock Units ("RSUs"), each of which represents a contingent right to receive one share of common stock of QMCO. Vesting is subject to continued employment with QMCO through the service vesting date, which occurs in three equal annual installments on November 1, 2023, November 1, 2024 and November 1, 2025.

SEC source: 0000709283-22-000046 · wf-form4_166561640573594.xml · nonDerivative · entry 1

Lerner James J · CIK 0001602567 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,894,811

F1 · shares: Represents the number of shares automatically sold, on a non-discretionary basis, to cover tax withholding obligations in connection with the vesting of restricted stock units granted on October 1, 2021.

SEC source: 0000709283-22-000045 · wf-form4_166561638411207.xml · nonDerivative · entry 1

Moorehead Lewis W. · CIK 0001597383 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 201,553

F1 · shares: Represents the number of shares automatically sold, on a non-discretionary basis, to cover tax withholding obligations in connection with the vesting of restricted stock units granted on October 1, 2021.

SEC source: 0000709283-22-000044 · wf-form4_166516894103625.xml · nonDerivative · entry 1

Cabrera Brian E · CIK 0001314901 · SVP Chief Admin Ofcr & Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 250,824

F1 · shares: Represents the number of shares automatically sold, on a non-discretionary basis, to cover tax withholding obligations in connection with the vesting of restricted stock units granted on October 1, 2021.

SEC source: 0000709283-22-000043 · wf-form4_166516892316085.xml · nonDerivative · entry 1

DODSON J MICHAEL · CIK 0001231559 · Senior Vice President, CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 870,372

F1 · shares: Represents the number of shares automatically sold, on a non-discretionary basis, to cover tax withholding obligations in connection with the vesting of restricted stock units granted on October 1, 2021.

SEC source: 0000709283-22-000041 · wf-form4_166302934524380.xml · nonDerivative · entry 1

Moorehead Lewis W. · CIK 0001597383 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 203,923

F1 · shares: Represents the number of shares automatically sold, on a non-discretionary basis, to cover tax withholding obligations in connection with the vesting of restricted stock units and performance-based stock units granted on September 6, 2019.

F2 · balance_after: Includes 1,577 shares acquired under Quantum Corporation's Employee Stock Purchase Plan on August 5, 2022.

SEC source: 0000709283-22-000040 · wf-form4_166302932671880.xml · nonDerivative · entry 1

DODSON J MICHAEL · CIK 0001231559 · Senior Vice President, CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 881,718

F1 · shares: Represents the number of shares automatically sold, on a non-discretionary basis, to cover tax withholding obligations in connection with the vesting of performance-based stock units granted on September 6, 2019.

SEC source: 0000709283-22-000039 · wf-form4_166302930895998.xml · nonDerivative · entry 1

Lerner James J · CIK 0001602567 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,927,699

F1 · shares: Represents the number of shares automatically sold, on a non-discretionary basis, to cover tax withholding obligations in connection with the vesting of performance-based stock units granted on September 6, 2019.

F2 · balance_after: Includes 957 shares acquired under Quantum Corporation's Employee Stock Purchase Plan on August 5, 2022.

SEC source: 0000709283-22-000038 · wf-form4_166258577524558.xml · nonDerivative · entry 1

Hurley John · CIK 0001879356 · Chief Revenue Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 400,981

F1 · shares: Represents the number of shares automatically sold, on a non-discretionary basis, to cover tax withholding obligations in connection with the vesting of restricted stock units granted on September 1, 2021.

F2 · balance_after: Includes 4,333 shares acquired under Quantum Corporation's Employee Stock Purchase Plan on August 5, 2022.

SEC source: 0000709283-22-000037 · wf-form4_166249739865075.xml · nonDerivative · entry 1

Jacoby Rebecca · CIK 0001623506 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 158,624

F1 · shares: (1) Grant of Restricted Stock Units ("RSUs"), each of which represents a contingent right to receive one share of common stock of QMCO (the "Company"). The RSUs vest in full on the earlier of September 1, 2023 or the date of the Company's next annual stockholder meeting, subject to continued service on the Company's Board of Directors.

SEC source: 0000709283-22-000036 · wf-form4_166249704797153.xml · nonDerivative · entry 1

White Yue Zhou · CIK 0001875944 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 102,766

F1 · shares: (1) Grant of Restricted Stock Units ("RSUs"), each of which represents a contingent right to receive one share of common stock of QMCO (the "Company"). The RSUs vest in full on the earlier of September 1, 2023 or the date of the Company's next annual stockholder meeting, subject to continued service on the Company's Board of Directors.

SEC source: 0000709283-22-000035 · wf-form4_166249703075908.xml · nonDerivative · entry 1

Rothman Marc E · CIK 0001402025 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 297,625

F1 · shares: (1) Grant of Restricted Stock Units ("RSUs"), each of which represents a contingent right to receive one share of common stock of QMCO (the "Company"). The RSUs vest in full on the earlier of September 1, 2023 or the date of the Company's next annual stockholder meeting, subject to continued service on the Company's Board of Directors.

SEC source: 0000709283-22-000032 · wf-form4_165878304364478.xml · nonDerivative · entry 1

Moorehead Lewis W. · CIK 0001597383 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 210,762

F1 · shares: Represents the number of shares automatically sold, on a non-discretionary basis, to cover tax withholding obligations in connection with the vesting of restricted stock units and performance-based stock units granted on July 1, 2020.

SEC source: 0000709283-22-000031 · wf-form4_165826055887802.xml · nonDerivative · entry 1

Lerner James J · CIK 0001602567 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,962,993

F1 · shares: Represents the number of shares automatically sold, on a non-discretionary basis, to cover tax withholding obligations in connection with the vesting of restricted stock units and performance-based stock units granted on July 1, 2020.

SEC source: 0000709283-22-000030 · wf-form4_165763894286998.xml · nonDerivative · entry 1

DODSON J MICHAEL · CIK 0001231559 · Senior Vice President, CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 916,539

F1 · shares: Represents the number of shares automatically sold, on a non-discretionary basis, to cover tax withholding obligations in connection with the vesting of restricted stock units and performance-based stock units granted on July 1, 2020.

SEC source: 0000709283-22-000027 · wf-form4_165714492133644.xml · derivative · entry 2

Lerner James J · CIK 0001602567 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 116,550 shares

Expires 2027-07-01

F2 · derivative.exercise_price: Grant of Performance-Based Restricted Stock Units ("PSUs"), each of which represents a contingent right to receive one share of common stock of QMCO, with vesting subject to the achievement of specified level of the average closing price of a share of QMCO common stock during any one hundred (100) calendar day period occurring between July 1, 2022 and July 1, 2027. Vesting is subject to continued employment with QMCO through the later of the achievement date or service vesting date, which will occur 36 months from the grant date on July 1, 2025.

F2 · derivative.exercise_date: Grant of Performance-Based Restricted Stock Units ("PSUs"), each of which represents a contingent right to receive one share of common stock of QMCO, with vesting subject to the achievement of specified level of the average closing price of a share of QMCO common stock during any one hundred (100) calendar day period occurring between July 1, 2022 and July 1, 2027. Vesting is subject to continued employment with QMCO through the later of the achievement date or service vesting date, which will occur 36 months from the grant date on July 1, 2025.

SEC source: 0000709283-22-000027 · wf-form4_165714492133644.xml · nonDerivative · entry 1

Lerner James J · CIK 0001602567 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,025,145

F1 · security: Grant of Restricted Stock Units ("RSUs"), each of which represents a contingent right to receive one share of common stock of QMCO. Vesting is subject to continued employment with QMCO through the service vesting date, which occurs in three equal annual installments on July 1, 2023, July 1, 2024 and July 1, 2025.

SEC source: 0000709283-22-000028 · wf-form4_165714494228259.xml · derivative · entry 2

DODSON J MICHAEL · CIK 0001231559 · Senior Vice President, CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 41,625 shares

Expires 2027-07-01

F2 · derivative.exercise_price: Grant of Performance-Based Restricted Stock Units ("PSUs"), each of which represents a contingent right to receive one share of common stock of QMCO, with vesting subject to the achievement of specified level of the average closing price of a share of QMCO common stock during any one hundred (100) calendar day period occurring between July 1, 2022 and July 1, 2027. Vesting is subject to continued employment with QMCO through the later of the achievement date or service vesting date, which will occur 36 months from the grant date on July 1, 2025.

F2 · derivative.exercise_date: Grant of Performance-Based Restricted Stock Units ("PSUs"), each of which represents a contingent right to receive one share of common stock of QMCO, with vesting subject to the achievement of specified level of the average closing price of a share of QMCO common stock during any one hundred (100) calendar day period occurring between July 1, 2022 and July 1, 2027. Vesting is subject to continued employment with QMCO through the later of the achievement date or service vesting date, which will occur 36 months from the grant date on July 1, 2025.