SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person*
B. Riley Financial, Inc.

(Last) (First) (Middle)
11100 SANTA MONICA BLVD,
SUITE 800

(Street)
LOS ANGELES CA 90025

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
QUANTUM CORP /DE/ [ QMCO ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director X 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
04/26/2021
4. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
Form filed by One Reporting Person
X Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 04/26/2021 S 630,000 D $8.25 5,359,100 I By B. Riley Securities, Inc.(1)(2)
Common Stock 04/26/2021 S 310,000 D $8.25 2,248,511 I By BRC Partners Opportunity Fund, L.P.(1)(2)
Common Stock 10,199 I By Bryant R. Riley, as UTMA custodian for Charlie Riley(1)(2)
Common Stock 10,200 I By Bryant R. Riley, as UTMA custodian for Susan Riley(1)(2)
Common Stock 10,199 I By Bryant R. Riley, as UTMA custodian for Abigail Riley(1)(2)
Common Stock 10,198 I By Bryant R. Riley, as UTMA custodian for Eloise Riley(1)(2)
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
1. Name and Address of Reporting Person*
B. Riley Financial, Inc.

(Last) (First) (Middle)
11100 SANTA MONICA BLVD,
SUITE 800

(Street)
LOS ANGELES CA 90025

(City) (State) (Zip)
1. Name and Address of Reporting Person*
B. RILEY CAPITAL MANAGEMENT, LLC

(Last) (First) (Middle)
11100 SANTA MONICA BLVD.
SUITE 800

(Street)
LOS ANGELES CA 90025

(City) (State) (Zip)
1. Name and Address of Reporting Person*
BRC Partners Management GP, LLC

(Last) (First) (Middle)
11100 SANTA MONICA BLVD,
SUITE 800

(Street)
LOS ANGELES CA 90025

(City) (State) (Zip)
1. Name and Address of Reporting Person*
BRC Partners Opportunity Fund, LP

(Last) (First) (Middle)
11100 SANTA MONICA BLVD.
SUITE 800

(Street)
LOS ANGELES CA 90025

(City) (State) (Zip)
1. Name and Address of Reporting Person*
B. Riley Securities, Inc.

(Last) (First) (Middle)
11100 SANTA MONICA BLVD
SUITE 800

(Street)
LOS ANGELES CA 90025

(City) (State) (Zip)
1. Name and Address of Reporting Person*
RILEY BRYANT R

(Last) (First) (Middle)
11100 SANTA MONICA BLVD,
SUITE 800

(Street)
LOS ANGELES CA 90025

(City) (State) (Zip)
Explanation of Responses:
1. This Form 4 is being filed jointly by B. Riley Financial, Inc., a Delaware corporation ("BRF"), B. Riley Securities, Inc., a Delaware corporation ("BRS"), BRC Partners Opportunity Fund, LP, a Delaware limited partnership ("BRPLP"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), B. Riley Capital Management, LLC, a New York limited liability company, a registered investment advisor ("BRCM"), and Bryant R. Riley. BRPGP is a subsidiary of BRCM, a registered investment advisor, and is the general partner of BRPLP. BRF is the parent company of BRCM. As a result, BRPGP, BRCM and BRF may be deemed to indirectly beneficially own the shares held by BRPLP. BRF is the parent company of BRS. As a result, BRF may be deemed to indirectly beneficially own the shares held by BRS.
2. Bryant R. Riley is the Co-Chief Executive Officer and Chairman of the Board of Directors of BRF. As a result, Bryant R. Riley may be deemed to indirectly beneficially own the shares of Common Stock directly held by BRF, BRS, and BRPLP. Each of BRF, BRS, BRPGP, BRCM, and BRPLP (collectively, the "B. Riley Entities") and Bryant R. Riley disclaims beneficial ownership of the outstanding shares of Common Stock reported herein, except to the extent of its/his respective pecuniary interest therein.
B. Riley Financial, Inc., by: /s/ Bryant R. Riley, Co-Chief Executive Officer 04/28/2021
B. Riley Capital Management, LLC, by: /s/ Bryant R. Riley, Chief Executive Officer 04/28/2021
BRC Partners Management GP, LLC, by: B. Riley Capital Management, LLC, its sole member, by: /s/ Bryant R. Riley, Chief Executive Officer 04/28/2021
BRC Partners Opportunity Fund, LP, by: /s/ Bryant R. Riley, Chief Investment Officer 04/28/2021
B. Riley Securities, Inc., by: /s/ Andrew Moore, Chief Executive Officer 04/28/2021
Bryant R. Riley, by: /s/ Bryant R. Riley 04/28/2021
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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