As Of	Filer	Filing¹	For·On·As	Docs:Size	Issuer		Filing Agent

  5/3/24  Quantum Corp./DE                  8-K:7,9      5/3/24   11:158K                                   Donnelley … Solutions/FA 
 4/23/24  Gianella Kenneth P.               4          Officer²    1:5K   Quantum Corp./DE                  Quantum Corp./DE         
 4/23/24  Lerner James J                    4          Dir.,Off.²  1:5K   Quantum Corp./DE                  Quantum Corp./DE         
 4/23/24  Spanjaard Henk Jan                4          Officer²    1:5K   Quantum Corp./DE                  Quantum Corp./DE         
 4/23/24  Cabrera Brian E                   4          Officer²    1:5K   Quantum Corp./DE                  Quantum Corp./DE         
 4/12/24  Spanjaard Henk Jan                3          Officer²    2:260K Quantum Corp./DE                  Quantum Corp./DE         
 4/12/24  Quantum Corp./DE                  8-K:2,5,9    4/8/24   11:170K                                   Donnelley … Solutions/FA 
  4/3/24  Nash Laura A.                     4          Officer²    1:4K   Quantum Corp./DE                  Quantum Corp./DE         
 3/25/24  Quantum Corp./DE                  8-K:1,3,9   3/19/24   12:269K                                   Donnelley … Solutions/FA 
 2/20/24  Quantum Corp./DE                  8-K:1,9     2/14/24   12:317K                                   Donnelley … Solutions/FA 
 2/14/24  Long Focus Capital Mgmt, LLC      SC 13G/A               2:139K Quantum Corp./DE                  Borer Fin’l Comms, Inc.  
          A. Glenn Helmers³
          Condagua, LLC³
          John B. Helmers³
          Long Focus Capital Management, LLC³
          Long Focus Capital Master, Ltd.³
 2/14/24  Quantum Corp./DE                  8-K:3       2/13/24   10:140K                                   Donnelley … Solutions/FA 
 2/14/24  Quantum Corp./DE                  NT 10-Q    12/31/23    1:25K                                    Donnelley … Solutions/FA 
 2/13/24  Vanguard Group Inc.               SC 13G                 1:12K  Quantum Corp./DE                  Toppan Merrill/FA        
 2/12/24  Neuberger Berman Group LLC        SC 13G/A               1:78K  Quantum Corp./DE                  SEC Connect              
          Neuberger Berman Equity Funds³
          Neuberger Berman Intrinsic Value Fund³
          Neuberger Berman Investment Advisers LLC³
 1/17/24  ADK Soho Fund LP                  SC 13G/A               1:53K  Quantum Corp./DE                  Akin Gump Str… Office/FA 
          Adk Capital LLC³
          Nat Klipper³
 12/4/23‡ ADK Soho Fund LP                  SC 13G      12/1/23    1:67K  Quantum Corp./DE                  Akin Gump Str… Office/FA 
          Adk Capital LLC³
          Nat Klipper³
11/17/23  Quantum Corp./DE                  8-K:3,8,9  11/14/23   11:162K                                   Donnelley … Solutions/FA 
11/16/23  Quantum Corp./DE                  8-K:5,7,9   11/9/23   11:160K                                   Donnelley … Solutions/FA 
11/13/23  Quantum Corp./DE                  8-K:1,2,9  11/10/23   13:294K                                   Donnelley … Solutions/FA 

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‡	A non-Insider-Ownership Filing that was accepted after the SEC “closed” at 5:30:00pm ET.  The legal “Filed As Of” date may be the next, or another, day.
¹	Filing/Form Types:  -K
	3	Initial Statement of Beneficial Ownership of Securities by an Insider — Form 3 { The Filer is an Insider² of the Issuer }.
	4	Statement of Changes in Beneficial Ownership of Securities by an Insider — Form 4 { The Filer is an Insider² of the Issuer }.
	8-K	Current Report — Form 8-K { Item 1: Business & Operations;  2: Financial Info;  3: Securities & Trading;  4: Accountants & Accounting;  5: Governance & Management;  6: Asset-Backed Securities;  7: Disclosures;  8: Events;  9: Financials }.
	NT 10-Q	Notice of a Late Filing of a Form 10-Q Quarterly Report — Form 12b-25.
	SC 13G	Statement of Acquisition of Beneficial Ownership by a “Passive” Investor — Schedule 13G.
	/A	Amendment to, or Amended version of, a previous Filing of this Type.
²	Insider:  The Filer is a Director, Officer, 10% Owner and/or Other “insider” of the Issuer.
³	Group Member:  A Registrant or non-Registrant party to this Filing made by a Group.