QMCO QUANTUM CORP
FollowCOM (common), issuer CIK 709283
40 managers (40 13F filers) reported a position in QMCO shares at 2025-12-31, 2,055,109 shares in all. 15 filers opened a position and 7 filers sold out during the quarter.
- Managers
- 40
- 13F filers
- 40
- New
- 15
- Added
- 14
- Reduced
- 6
- Sold out
- 7
- Shares held by filers
- 2,055,109
Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.
13D and 13G filers
No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.
Insider trades
No Form 4 transaction on this security in the data.
13F holders, Q4 2025
Filers in the available 13F reports with a share position at 2025-12-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.
| Holder | Shares | Value | % of portfolio | Change | Source |
|---|---|---|---|---|---|
| VANGUARD GROUP INCin group VANGUARD GROUP INC | 625,538 | $4.03M | <0.01% | +321,941 | 13F-HRTimelineGroup |
| Portolan Capital Management, LLCin group Portolan Capital Management, … | 477,214 | $3.08M | 0.16% | new | 13F-HRTimelineGroup |
| BlackRock, Inc.in group BlackRock, Inc. | 220,746 | $1.42M | <0.01% | +58,408 | 13F-HRTimelineGroup |
| UBS Group AGin group UBS Group AG | 165,838 | $1.07M | <0.01% | +3,233 | 13F-HRTimelineGroup |
| GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC | 156,871 | $1.01M | <0.01% | +77,444 | 13F-HRTimelineGroup |
| STATE STREET CORPin group STATE STREET CORP | 90,714 | $585K | <0.01% | +63,367 | 13F-HRTimelineGroup |
| Cygnus Capital Advisors, LLC | 69,423 | $448K | 0.33% | 13F-HRTimeline | |
| AlphaQuest LLC | 29,386 | $190K | 0.01% | -6,150 | 13F-HRTimeline |
| NORTHERN TRUST CORPin group NORTHERN TRUST CORP | 28,762 | $186K | <0.01% | +17,075 | 13F-HRTimelineGroup |
| FLAGSHIP HARBOR ADVISORS, LLC | 26,585 | $171K | 0.01% | +3,875 | 13F-HRTimeline |
| MARSHALL WACE, LLPin group MARSHALL WACE, LLP | 21,740 | $140K | <0.01% | new | 13F-HRTimelineGroup |
| BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/ | 20,535 | $132K | <0.01% | +17,639 | 13F-HRTimelineGroup |
| LPL Financial LLC | 18,364 | $118K | <0.01% | new | 13F-HRTimeline |
| Engineers Gate Manager LP | 16,407 | $106K | <0.01% | new | 13F-HRTimeline |
| PRICE T ROWE ASSOCIATES INC /MD/ | 15,901 | $103K | <0.01% | new | 13F-HRTimeline |
| BARCLAYS PLCin group BARCLAYS PLC | 14,197 | $91.6K | <0.01% | +13,742 | 13F-HRTimelineGroup |
| CITIGROUP INCin group CITIGROUP INC | 12,828 | $82.7K | <0.01% | new | 13F-HRTimelineGroup |
| XTX Topco Ltdin group XTX Topco Ltd | 11,948 | $77.1K | <0.01% | new | 13F-HRTimelineGroup |
| MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC | 11,244 | $72.5K | <0.01% | new | 13F-HRTimelineGroup |
| MORGAN STANLEYin group MORGAN STANLEY | 4,313 | $27.8K | <0.01% | +957 | 13F-HR/ATimelineGroup |
| LANARK FINANCIAL, INC. | 4,000 | $25.8K | <0.01% | new | 13F-HRTimeline |
| WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN | 3,525 | $22.7K | <0.01% | +3,285 | 13F-HRTimelineGroup |
| SBI Securities Co., Ltd. | 2,425 | $15.6K | <0.01% | -3,545 | 13F-HRTimeline |
| JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP | 1,841 | $11.9K | <0.01% | +946 | 13F-HRTimelineGroup |
| BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS | 1,019 | $6.57K | <0.01% | -2,442 | 13F-HRTimelineGroup |
| ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA | 833 | $5K | <0.01% | -21,882 | 13F-HRTimelineGroup |
| OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC. | 748 | $4.82K | <0.01% | -242 | 13F-HRTimelineGroup |
| Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T… | 582 | $3.75K | <0.01% | +155 | 13F-HRTimelineGroup |
| FEDERATED HERMES, INC.in group FEDERATED HERMES, INC. | 501 | $3.23K | <0.01% | new | 13F-HRTimelineGroup |
| Quattro Advisors LLC | 400 | $2.58K | <0.01% | 13F-HRTimeline | |
| FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS… | 295 | $1.9K | <0.01% | 0 | 13F-HRTimelineGroup |
| EFG International AGin group EFG International AG | 100 | $645 | <0.01% | 13F-HRTimelineGroup | |
| NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/ | 100 | $644 | <0.01% | new | 13F-HRTimelineGroup |
| Global Retirement Partners, LLC | 65 | $419 | <0.01% | new | 13F-HRTimeline |
| Federation des caisses Desjardins du Qu… | 25 | $161 | <0.01% | new | 13F-HRTimeline |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN… | 15 | $97 | <0.01% | new | 13F-HR/ATimelineGroup |
| JPMORGAN CHASE & COin group JPMORGAN CHASE & CO | 8 | $52 | <0.01% | 0 | 13F-HRTimelineGroup |
| Farther Finance Advisors, LLC | 4 | $26 | <0.01% | -300 | 13F-HRTimeline |
| Activest Wealth Management | 1 | $5 | <0.01% | +1 | 13F-HRTimeline |
| Avion Wealth | 68 | $0 | 0% | new | 13F-HRTimelineValue filed as zero, left out of ratios. |