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YCY

AA Mission Acquisition Corp II
YCY

41 hedge funds and large institutions have $109M invested in AA Mission Acquisition Corp II in 2026 Q1 according to their latest regulatory filings, with 9 funds opening new positions, 6 increasing their positions, 9 reducing their positions, and 1 closing their positions.

New
Increased
Maintained
Reduced
Closed

800% more first-time investments, than exits

New positions opened: 9 | Existing positions closed: 1

26% more capital invested

Capital invested by funds: $86.4M → $109M (+$22.6M)

21% more funds holding

Funds holding: 34 → 41 (+7)

18.21% more ownership

Funds ownership: 73.18% → 91.39% (+18%)

33% less repeat investments, than reductions

Existing positions increased: 6 | Existing positions reduced: 9

Holders
41
Holders Change
+7
Holders Change %
+20.59%
% of All Funds
0.5%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
9
Increased
6
Reduced
9
Closed
1
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
MF
Magnetar Financial
Illinois
+$7.02M
2
WCMNY
Westchester Capital Management (New York)
New York
+$4.96M
3
BCM
BlueCrest Capital Management
Jersey
+$4.01M
4
HCM
Heights Capital Management
California
+$2.01M
5
Millennium Management
Millennium Management
New York
+$2.01M

Top Sellers

Rank Fund Capital Flow
1
MSU
Mizuho Securities USA
New York
-$1.57M
2
PC
Periscope Capital
Ontario, Canada
-$502K
3
MC
Meteora Capital
Florida
-$174K
4
AA
AQR Arbitrage
Connecticut
-$170K
5
CS
Clear Street
New York
-$80.7K
Name Holding Trade Value Shares
Change 		Change in
Stake
BNP Paribas Financial Markets
26
BNP Paribas Financial Markets
France
$1.68M +$206K +20,570 +14%
OCAI
27
O'Connor Alternative Investments
New York
$1.51M +$1.5M +150,000 New
MTCM
28
Mint Tower Capital Management
Netherlands
$1.26M – – –
SAMU
29
SONA Asset Management (US)
New York
$1.01M +$1M +100,147 New
LGM
30
L1 Global Manager
$1.01M – – –
RCM
31
Rivernorth Capital Management
Florida
$1.01M +$1M +100,000 New
KIM
32
Karpus Investment Management
New York
$664K -$6.77K -675 -1%
CL
33
CSS LLC
Illinois
$504K – – –
CA
34
Crossingbridge Advisors
New York
$504K +$502K +50,000 New
AA
35
ABC Arbitrage
France
$403K – – –
WAM
36
Warberg Asset Management
Illinois
$352K -$130 -13 -0%
BFM
37
Boothbay Fund Management
New York
$268K -$5.43K -541 -2%
VF
38
Virtu Financial
New York
$132K +$22.3K +2,228 +20%
Toronto Dominion Bank
39
Toronto Dominion Bank
Ontario, Canada
$5K +$4.99K +497 New
HCM
40
Highbridge Capital Management
New York
$3.21K +$3.2K +319 New
UBS Group
41
UBS Group
Switzerland
$2.38K -$12.6K -1,254 -84%
QL
42
Quarry LP
New York
– -$4.95K -497 Closed
1
2

YCY Hedge Fund Activity: Q1 2026 in Review

41 of the 8,172 institutional investors tracked by Wall St. Rank reported a position in AA Mission Acquisition Corp II (YCY) for Q1 2026, worth a combined $109M — up 26% from $86.4M a quarter earlier.

Buyers outnumbered sellers: 9 funds opened new YCY positions and 1 closed out — a net gain of 8 holders — while 6 added to existing stakes and 9 trimmed.

The largest buyer was Magnetar Financial, opening a new position worth an estimated $7.02M. The largest seller was Mizuho Securities USA, cutting an estimated $1.57M.

  • 41 institutional investors held AA Mission Acquisition Corp II (YCY) as of Q1 2026, up from 34 in Q4 2025.
  • Funds reported $109M of AA Mission Acquisition Corp II stock for Q1 2026, up 26% quarter-over-quarter.
  • 9 funds opened new AA Mission Acquisition Corp II positions in Q1 2026 and 1 closed out, a net change of +8 holders.
  • The largest AA Mission Acquisition Corp II buyer in Q1 2026 was Magnetar Financial, an estimated $7.02M added.
  • The largest AA Mission Acquisition Corp II seller in Q1 2026 was Mizuho Securities USA, an estimated $1.57M sold.

Based on aggregated 13F filings for Q1 2026.