QuantumQMCO
13F holders, Q2 2025 (June 30)34holders +5
13new positions
7sold out
$9.97avg. 13F price*
At the end of Q2 2025, 34 institutions reported holding Quantum Corp. (QMCO) in their 13F filings, up 5 from Q1 2025. 13 opened new positions and 7 sold out. The largest holders were Vanguard Group Inc. ($2.6M), Marshall Wace, LLP ($1.8M) and BlackRock, Inc. ($1.4M).
- Company
- Quantum Corp.
- CUSIP
- 747906600
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 13 | $2.5M |
| Exits | 7 | $15.4M |
All 13F filers, Q1 2025 → Q2 2025: 361,514 shares bought and 1,166,607 shares sold, net −805,093 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 34 holders
| Vanguard Group Inc. | 0.00% | Add +0.9% | 256,678 | $2.6M |
| Marshall Wace, LLP | 0.00% | New | 178,021 | $1.8M |
| BlackRock, Inc. | 0.00% | Add +9.3% | 141,311 | $1.4M |
| Geode Capital Management, LLC | 0.00% | Add +9.1% | 69,384 | $692K |
| UBS Group AG | 0.00% | Add +173.9% | 60,221 | $600K |
| Morgan Stanley | 0.00% | Add +1965.6% | 45,733 | $456K |
| State Street Corp. | 0.00% | No change | 27,347 | $273K |
| Sassicaia Capital Advisers LLC | 0.15% | New | 23,267 | $232K |
| Royal Bank of Canada | 0.00% | New | 19,353 | $193K |
| Northern Trust Corp. | 0.00% | No change | 11,687 | $117K |
| Apollon Wealth Management, LLC | 0.00% | New | 10,714 | $107K |
| CIBC Private Wealth Group LLC | 0.00% | New | 10,404 | $104K |
| SBI Securities Co., Ltd. | 0.00% | Add +99.4% | 5,636 | $56K |
| Wells Fargo & Company | 0.00% | Add +824.4% | 5,315 | $53K |
| AlphaQuest LLC | 0.00% | Reduce -51.2% | 4,707 | $47K |
| Raymond James Financial Inc. | 0.00% | New | 4,615 | $46K |
| Hollencrest Capital Management | 0.00% | New | 2,000 | $20K |
| Citigroup Inc. | 0.00% | New | 1,236 | $12K |
| Covestor Ltd | 0.01% | New | 942 | $9K |
| BNP Paribas Financial Markets | 0.00% | Reduce -74.8% | 820 | $8K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -68.5% | 722 | $7K |
| NewEdge Advisors, LLC | 0.00% | New | 700 | $7K |
| Bank of America Corp. | 0.00% | Reduce -99.1% | 662 | $7K |
| Caitong International Asset Management Co., Ltd | 0.00% | Reduce -62.7% | 632 | $6K |
| FNY Investment Advisers, LLC | 0.00% | New | 667 | $6K |
| Barclays PLC | 0.00% | Reduce -38.2% | 455 | $5K |
| Jones Financial Companies LLLP | 0.00% | Add +18.5% | 494 | $4K |
| Fifth Third Bancorp | 0.00% | No change | 295 | $3K |
| Whittier Trust Co. | 0.00% | No change | 187 | $2K |
| Fortitude Family Office, LLC | 0.00% | New | 46 | $459 |
| Rialto Wealth Management, LLC | 0.00% | New | 42 | $419 |
| Osaic Holdings, Inc. | 0.00% | Add +40.0% | 35 | $348 |
| JPMorgan Chase & Co. | 0.00% | Reduce -99.8% | 8 | $80 |
| Farther Finance Advisors, LLC | 0.00% | No change | 4 | $40 |
"% of holder's portfolio" is QMCO's weight in each manager's 13F, not the share of Quantum Corp. the manager owns.