Keystone Acquisition Corp Unit
KEYYU
29 hedge funds and large institutions have $135M invested in Keystone Acquisition Corp Unit in 2026 Q2 according to their latest regulatory filings, with 29 funds opening new positions, increasing their positions, reducing their positions, and closing their positions.
53.85% more ownership
Funds ownership: 0% → 53.85% (+54%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
MF
Magnetar Financial
Evanston,
Illinois
|
+$20.1M |
| 2 |
AA
AQR Arbitrage
Greenwich,
Connecticut
|
+$17.3M |
| 3 |
LP
LMR Partners
London,
United Kingdom
|
+$13M |
| 4 |
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Toronto,
Ontario, Canada
|
+$12.5M |
| 5 |
AIMCA
Alberta Investment Management Corp (AIMCo)
Edmonton,
Alberta, Canada
|
+$8.02M |
Top Sellers
KEYYU Hedge Fund Activity: Q2 2026 in Review
29 of the 8,329 institutional investors tracked by Wall St. Rank reported a position in Keystone Acquisition Corp Unit (KEYYU) for Q2 2026, worth a combined $135M.
Buyers outnumbered sellers: 29 funds opened new KEYYU positions and 0 closed out — a net gain of 29 holders — while 0 added to existing stakes and 0 trimmed.
The largest buyer was Magnetar Financial, opening a new position worth an estimated $20.1M.
- 29 institutional investors held Keystone Acquisition Corp Unit (KEYYU) as of Q2 2026, up from 0 in Q1 2026.
- Funds reported $135M of Keystone Acquisition Corp Unit stock for Q2 2026.
- 29 funds opened new Keystone Acquisition Corp Unit positions in Q2 2026 and 0 closed out, a net change of +29 holders.
- The largest Keystone Acquisition Corp Unit buyer in Q2 2026 was Magnetar Financial, an estimated $20.1M added.
Based on aggregated 13F filings for Q2 2026.