QUANTUM CORP

Ticker: QMCO CUSIP: 747906600 Class: Stock

Holders for Q4 2025 Position Changes for Q4 2025

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

New Positions (16)

Portolan Capital Management, LLC
Value ($000) $3,078 Shares 477,214
XTX Topco Ltd
Value ($000) $77 Shares 11,948
Engineers Gate Manager LP
Value ($000) $106 Shares 16,407
MARSHALL WACE, LLP
Value ($000) $140 Shares 21,740
LPL Financial LLC
Value ($000) $118 Shares 18,364
NBC SECURITIES, INC.
Value ($000) $26 Shares 4,000
CITIGROUP INC
Value ($000) $83 Shares 12,828
MILLENNIUM MANAGEMENT LLC
Value ($000) $73 Shares 11,244
FEDERATED HERMES, INC.
Value ($000) $3 Shares 501
NATIONAL BANK OF CANADA /FI/
Value ($000) $1 Shares 100
Global Retirement Partners, LLC
Value ($000) $0 Shares 65
Federation des caisses Desjardins du Quebec
Value ($000) $0 Shares 25
PRICE T ROWE ASSOCIATES INC /MD/
Value ($000) $0 Shares 15,901
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO
Value ($000) $0 Shares 15
Activest Wealth Management
Value ($000) $0 Shares 1
Avion Wealth
Value ($000) $0 Shares 68

Increased Positions (13)

VANGUARD GROUP INC
Value ($000) $4,035 (+34.0%) Shares 625,538 (+106.0%)
GEODE CAPITAL MANAGEMENT, LLC
Value ($000) $1,012 (+28.4%) Shares 156,871 (+97.5%)
STATE STREET CORP
Value ($000) $585 (+115.7%) Shares 90,714 (+231.7%)
BlackRock, Inc.
Value ($000) $1,424 (-11.6%) Shares 220,746 (+36.0%)
BANK OF AMERICA CORP /DE/
Value ($000) $132 (+361.0%) Shares 20,535 (+609.1%)
NORTHERN TRUST CORP
Value ($000) $186 (+60.0%) Shares 28,762 (+146.1%)
FLAGSHIP HARBOR ADVISORS, LLC
Value ($000) $171 (-23.9%) Shares 26,585 (+17.1%)
BARCLAYS PLC
Value ($000) $92 (+5648.3%) Shares 14,197 (+3020.2%)
WELLS FARGO & COMPANY/MN
Value ($000) $23 (+854.9%) Shares 3,525 (+1368.8%)
UBS Group AG
Value ($000) $1,070 (-33.7%) Shares 165,838 (+2.0%)
MORGAN STANLEY
Value ($000) $28 (-16.4%) Shares 4,313 (+28.5%)
JONES FINANCIAL COMPANIES LLLP
Value ($000) $12 (+39.9%) Shares 1,841 (+105.7%)
Tower Research Capital LLC (TRC)
Value ($000) $4 (-11.4%) Shares 582 (+36.3%)

Decreased Positions (6)

AlphaQuest LLC
Value ($000) $190 (-46.2%) Shares 29,386 (-17.3%)
ROYAL BANK OF CANADA
Value ($000) $5 (-97.8%) Shares 833 (-96.3%)
SBI Securities Co., Ltd.
Value ($000) $16 (-73.6%) Shares 2,425 (-59.4%)
BNP PARIBAS ARBITRAGE, SA
Value ($000) $7 (-80.9%) Shares 1,019 (-70.6%)
Farther Finance Advisors, LLC
Value ($000) $0 (-99.1%) Shares 4 (-98.7%)
OSAIC HOLDINGS, INC.
Value ($000) $5 (-50.6%) Shares 748 (-24.4%)

Exited Positions (7)

Riverview Capital Advisers, LLC
Value ($000) $99 Shares 10,000
HOLLENCREST CAPITAL MANAGEMENT
Value ($000) $65 Shares 6,560
NewEdge Advisors, LLC
Value ($000) $7 Shares 700
WHITTIER TRUST CO
Value ($000) $2 Shares 187
Physician Wealth Advisors, Inc.
Value ($000) $1 Shares 102
Rialto Wealth Management, LLC
Value ($000) $0 Shares 42
FNY Investment Advisers, LLC
Value ($000) $0 Shares 273