QUANTUM CORP

Ticker: QMCO CUSIP: 747906600 Class: Stock

Holders for Q4 2025 Position Changes for Q4 2025

Note: Option positions (PUT/CALL) are excluded.

InstitutionSharesValue ($000)
VANGUARD GROUP INC625,538$4,035
Portolan Capital Management, LLC477,214$3,078
BlackRock, Inc.220,746$1,424
UBS Group AG165,838$1,070
GEODE CAPITAL MANAGEMENT, LLC156,871$1,012
STATE STREET CORP90,714$585
AlphaQuest LLC29,386$190
NORTHERN TRUST CORP28,762$186
FLAGSHIP HARBOR ADVISORS, LLC26,585$171
MARSHALL WACE, LLP21,740$140
BANK OF AMERICA CORP /DE/20,535$132
LPL Financial LLC18,364$118
Engineers Gate Manager LP16,407$106
PRICE T ROWE ASSOCIATES INC /MD/15,901$0
BARCLAYS PLC14,197$92
CITIGROUP INC12,828$83
XTX Topco Ltd11,948$77
MILLENNIUM MANAGEMENT LLC11,244$73
MORGAN STANLEY4,313$28
NBC SECURITIES, INC.4,000$26
WELLS FARGO & COMPANY/MN3,525$23
SBI Securities Co., Ltd.2,425$16
JONES FINANCIAL COMPANIES LLLP1,841$12
BNP PARIBAS ARBITRAGE, SA1,019$7
ROYAL BANK OF CANADA833$5
OSAIC HOLDINGS, INC.748$5
Tower Research Capital LLC (TRC)582$4
FEDERATED HERMES, INC.501$3
Quattro Advisors LLC400$3
FIFTH THIRD BANCORP295$2
NATIONAL BANK OF CANADA /FI/100$1
EFG International AG100$1
Avion Wealth68$0
Global Retirement Partners, LLC65$0
Federation des caisses Desjardins du Quebec25$0
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO15$0
JPMORGAN CHASE & CO8$0
Farther Finance Advisors, LLC4$0
Activest Wealth Management1$0
Total (39 institutions)1,985,686$12,705