Quantum Corp
QMCO
37 hedge funds and large institutions have $7.66M invested in Quantum Corp in 2026 Q1 according to their latest regulatory filings, with 10 funds opening new positions, 9 increasing their positions, 11 reducing their positions, and 11 closing their positions.
9% less first-time investments, than exits
New positions opened: 10 | Existing positions closed: 11
3.97% less ownership
Funds ownership: 14.98% → 11% (-4%)
8% less funds holding
Funds holding: 40 → 37 (-3)
18% less repeat investments, than reductions
Existing positions increased: 9 | Existing positions reduced: 11
42% less capital invested
Capital invested by funds: $13.3M → $7.66M (-$5.6M)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
SAMU
SONA Asset Management (US)
New York
|
+$423K |
| 2 |
CCA
Cygnus Capital Advisors
Atlanta,
Georgia
|
+$330K |
| 3 |
BCM
Bridgeway Capital Management
Houston,
Texas
|
+$98K |
| 4 |
Marshall Wace
London,
United Kingdom
|
+$95.2K |
| 5 |
KA
Kovack Advisors
Ft. Lauderdale,
Florida
|
+$75.3K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
PCM
Portolan Capital Management
Boston,
Massachusetts
|
-$3.08M |
| 2 |
UBS Group
Zurich,
Switzerland
|
-$403K |
| 3 |
State Street
Boston,
Massachusetts
|
-$108K |
| 4 |
EGM
Engineers Gate Manager
New York
|
-$106K |
| 5 |
Citigroup
New York
|
-$82.7K |
QMCO Hedge Fund Activity: Q1 2026 in Review
37 of the 8,191 institutional investors tracked by Wall St. Rank reported a position in Quantum Corp (QMCO) for Q1 2026, worth a combined $7.66M — down 42% from $13.3M a quarter earlier.
Sellers outnumbered buyers: 11 funds closed out of QMCO and 10 opened new positions — a net loss of 1 holder — while 11 trimmed existing stakes and 9 added.
The largest buyer was SONA Asset Management (US), opening a new position worth an estimated $423K. The largest seller was Portolan Capital Management, exiting entirely with an estimated $3.08M sold.
- 37 institutional investors held Quantum Corp (QMCO) as of Q1 2026, down from 40 in Q4 2025.
- Funds reported $7.66M of Quantum Corp stock for Q1 2026, down 42% quarter-over-quarter.
- 10 funds opened new Quantum Corp positions in Q1 2026 and 11 closed out, a net change of -1 holder.
- The largest Quantum Corp buyer in Q1 2026 was SONA Asset Management (US), an estimated $423K added.
- The largest Quantum Corp seller in Q1 2026 was Portolan Capital Management, an estimated $3.08M sold.
Based on aggregated 13F filings for Q1 2026.