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AACBU

Artius II Acquisition Inc Units
AACBU

6 hedge funds and large institutions have $25.4M invested in Artius II Acquisition Inc Units in 2025 Q2 according to their latest regulatory filings, with 1 funds opening new positions, increasing their positions, 2 reducing their positions, and 25 closing their positions.

New
Increased
Maintained
Reduced
Closed

0% more funds holding in top 10

Funds holding in top 10: 1 → 1 (0)

72.35% less ownership

Funds ownership: 84.57% → 12.22% (-72%)

80% less funds holding

Funds holding: 30 → 6 (-24)

86% less capital invested

Capital invested by funds: $188M → $25.4M (-$162M)

96% less first-time investments, than exits

New positions opened: 1 | Existing positions closed: 25

100% less repeat investments, than reductions

Existing positions increased: 0 | Existing positions reduced: 2

Holders
6
Holders Change
-24
Holders Change %
-80%
% of All Funds
0.08%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.01%
New
1
Increased
–
Reduced
2
Closed
25
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
UBS Group
UBS Group
Switzerland
+$2.05K

Top Sellers

Rank Fund Capital Flow
1
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
-$20.2M
2
AA
AQR Arbitrage
Connecticut
-$20M
3
SC
Sculptor Capital
New York
-$20M
4
PAMP
Polar Asset Management Partners
Ontario, Canada
-$15.1M
5
GCL
Glazer Capital LLC
New York
-$12.3M
Name Holding Trade Value Shares
Change 		Change in
Stake
HIM
1
HGC Investment Management
Ontario, Canada
$15.5M – – –
LP
2
LMR Partners
United Kingdom
$4.2M – – –
RCM
3
Rivernorth Capital Management
Florida
$3.15M – – –
Millennium Management
4
Millennium Management
New York
$2.1M -$5.12M -500,000 -71%
CS
5
Clear Street
New York
$466K -$2.02M -197,763 -82%
UBS Group
6
UBS Group
Switzerland
$2.1K +$2.05K +200 New
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
7
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
– -$20.2M -2,000,000 Closed
AA
8
AQR Arbitrage
Connecticut
– -$20M -1,980,000 Closed
SC
9
Sculptor Capital
New York
– -$20M -1,980,000 Closed
PAMP
10
Polar Asset Management Partners
Ontario, Canada
– -$15.1M -1,500,000 Closed
GCL
11
Glazer Capital LLC
New York
– -$12.3M -1,218,664 Closed
LA
12
Linden Advisors
New York
– -$10.1M -1,000,000 Closed
Two Sigma Investments
13
Two Sigma Investments
New York
– -$7.31M -725,000 Closed
SCM
14
Shaolin Capital Management
Florida
– -$7.05M -700,000 Closed
MF
15
Magnetar Financial
Illinois
– -$6.07M -600,000 Closed
HI
16
HBK Investments
Texas
– -$5.04M -500,000 Closed
MCM
17
Moore Capital Management
New York
– -$5.05M -500,000 Closed
PMAM
18
Picton Mahoney Asset Management
Ontario, Canada
– -$5.05M -500,000 Closed
WRBC
19
W.R. Berkley Corp
Connecticut
– -$4M -396,960 Closed
SSA
20
Schonfeld Strategic Advisors
New York
– -$2.9M -287,641 Closed
AGM
21
Alpine Global Management
New York
– -$2.53M -250,002 Closed
MC
22
Meteora Capital
Florida
– -$2.39M -237,501 Closed
GAM
23
Gritstone Asset Management
Maryland
– -$2.01M -200,000 Closed
CCM
24
Context Capital Management
California
– -$1.64M -162,191 Closed
MSU
25
Mizuho Securities USA
New York
– -$1.58M -158,447 Closed
1
2

AACBU Hedge Fund Activity: Q2 2025 in Review

6 of the 7,595 institutional investors tracked by Wall St. Rank reported a position in Artius II Acquisition Inc Units (AACBU) for Q2 2025, worth a combined $25.4M — down 86% from $188M a quarter earlier.

Sellers outnumbered buyers: 25 funds closed out of AACBU and 1 opened new positions — a net loss of 24 holders — while 2 trimmed existing stakes and 0 added.

The largest buyer was UBS Group, opening a new position worth an estimated $2.05K. The largest seller was Healthcare of Ontario Pension Plan (HOOPP) Trust Fund, exiting entirely with an estimated $20.2M sold.

  • 6 institutional investors held Artius II Acquisition Inc Units (AACBU) as of Q2 2025, down from 30 in Q1 2025.
  • Funds reported $25.4M of Artius II Acquisition Inc Units stock for Q2 2025, down 86% quarter-over-quarter.
  • 1 fund opened new Artius II Acquisition Inc Units positions in Q2 2025 and 25 closed out, a net change of -24 holders.
  • The largest Artius II Acquisition Inc Units buyer in Q2 2025 was UBS Group, an estimated $2.05K added.
  • The largest Artius II Acquisition Inc Units seller in Q2 2025 was Healthcare of Ontario Pension Plan (HOOPP) Trust Fund, an estimated $20.2M sold.

Based on aggregated 13F filings for Q2 2025.