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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
MC
1
Meteora Capital
Florida
$7.85M -$174K -17,316 -2%
MF
2
Magnetar Financial
Illinois
$7.05M +$7.02M +699,994 New
MSU
3
Mizuho Securities USA
New York
$6.43M -$1.57M -157,007 -20%
WAM
4
Wolverine Asset Management
Illinois
$5.84M +$946K +94,347 +19%
WCMNY
5
Westchester Capital Management (New York)
New York
$5.74M +$4.96M +494,185 +634%
AC
6
Aristeia Capital
Connecticut
$5.62M – – –
AA
7
AQR Arbitrage
Connecticut
$5.38M -$170K -16,937 -3%
WA
8
Whitebox Advisors
Minnesota
$5.04M – – –
Hudson Bay Capital Management
9
Hudson Bay Capital Management
Connecticut
$4.03M – – –
SCM
10
Shaolin Capital Management
Florida
$4.03M – – –
BCM
11
BlueCrest Capital Management
Jersey
$4.03M +$4.01M +400,000 New
WRBC
12
W.R. Berkley Corp
Connecticut
$3.94M +$500K +49,801 +15%
RCM
13
Radcliffe Capital Management
Pennsylvania
$3.52M – – –
GCL
14
Glazer Capital LLC
New York
$3.4M – – –
Millennium Management
15
Millennium Management
New York
$3.02M +$2.01M +200,000 +200%
MP
16
Mangrove Partners
Connecticut
$2.69M – – –
CS
17
Clear Street
New York
$2.53M -$80.7K -8,050 -3%
D.E. Shaw & Co
18
D.E. Shaw & Co
New York
$2.52M – – –
FTCM
19
First Trust Capital Management
Illinois
$2.52M – – –
LA
20
Linden Advisors
New York
$2.52M – – –
PC
21
Periscope Capital
Ontario, Canada
$2.51M -$502K -50,000 -17%
Two Sigma Investments
22
Two Sigma Investments
New York
$2.42M – – –
HCM
23
Heights Capital Management
California
$2.01M +$2.01M +200,000 New
CCM
24
Context Capital Management
California
$2.01M – – –
OAC
25
OMERS Administration Corp
Ontario, Canada
$2.01M – – –
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.