Quantumsphere Acquisition Corp
QUMS
27 hedge funds and large institutions have $80.3M invested in Quantumsphere Acquisition Corp in 2026 Q2 according to their latest regulatory filings, with 1 funds opening new positions, 6 increasing their positions, 10 reducing their positions, and 3 closing their positions.
45% more capital inflows, than outflows
Capital inflows: $10M | Capital outflows: $6.91M
2.65% more ownership
Funds ownership: 66.24% → 68.89% (+2.7%)
7% less funds holding
Funds holding: 29 → 27 (-2)
40% less repeat investments, than reductions
Existing positions increased: 6 | Existing positions reduced: 10
67% less first-time investments, than exits
New positions opened: 1 | Existing positions closed: 3
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
W.R. Berkley Corp
Greenwich,
Connecticut
|
+$3.79M |
| 2 |
Highbridge Capital Management
New York
|
+$2.61M |
| 3 |
RLH Capital
Great Neck,
New York
|
+$1.53M |
| 4 |
Westchester Capital Management (New York)
Valhalla,
New York
|
+$1.02M |
| 5 |
Quarry LP
New York
|
+$763K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
HGC Investment Management
Toronto,
Ontario, Canada
|
-$3.04M |
| 2 |
Toronto Dominion Bank
Toronto, Ontario,
Ontario, Canada
|
-$1.68M |
| 3 |
Shaolin Capital Management
Miami,
Florida
|
-$755K |
| 4 |
Two Sigma Investments
New York
|
-$357K |
| 5 |
Periscope Capital
Toronto,
Ontario, Canada
|
-$254K |
QUMS Hedge Fund Activity: Q2 2026 in Review
27 of the 8,371 institutional investors tracked by Wall St. Rank reported a position in Quantumsphere Acquisition Corp (QUMS) for Q2 2026, worth a combined $80.3M — up 5.1% from $76.4M a quarter earlier.
Sellers outnumbered buyers: 3 funds closed out of QUMS and 1 opened new positions — a net loss of 2 holders — while 10 trimmed existing stakes and 6 added.
The largest buyer was W.R. Berkley Corp, adding an estimated $3.79M. The largest seller was HGC Investment Management, exiting entirely with an estimated $3.04M sold.
- 27 institutional investors held Quantumsphere Acquisition Corp (QUMS) as of Q2 2026, down from 29 in Q1 2026.
- Funds reported $80.3M of Quantumsphere Acquisition Corp stock for Q2 2026, up 5.1% quarter-over-quarter.
- 1 fund opened new Quantumsphere Acquisition Corp positions in Q2 2026 and 3 closed out, a net change of -2 holders.
- The largest Quantumsphere Acquisition Corp buyer in Q2 2026 was W.R. Berkley Corp, an estimated $3.79M added.
- The largest Quantumsphere Acquisition Corp seller in Q2 2026 was HGC Investment Management, an estimated $3.04M sold.
Based on aggregated 13F filings for Q2 2026.