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AACBU

Artius II Acquisition Inc Units
AACBU

30 hedge funds and large institutions have $188M invested in Artius II Acquisition Inc Units in 2025 Q1 according to their latest regulatory filings, with 30 funds opening new positions, increasing their positions, reducing their positions, and closing their positions.

New
Increased
Maintained
Reduced
Closed

84.57% more ownership

Funds ownership: 0% → 84.57% (+85%)

Holders
30
Holders Change
+30
Holders Change %
–
% of All Funds
0.4%
Holding in Top 10
1
Holding in Top 10 Change
+1
Holding in Top 10 Change %
% of All Funds
0.01%
New
30
Increased
–
Reduced
–
Closed
–
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
+$20.1M
2
AA
AQR Arbitrage
Connecticut
+$19.9M
3
SC
Sculptor Capital
New York
+$19.9M
4
HIM
HGC Investment Management
Ontario, Canada
+$15.1M
5
PAMP
Polar Asset Management Partners
Ontario, Canada
+$15.1M

Top Sellers

No sellers this quarter
Name Holding Trade Value Shares
Change 		Change in
Stake
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
1
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
$20.2M +$20.1M +2,000,000 New
AA
2
AQR Arbitrage
Connecticut
$20M +$19.9M +1,980,000 New
SC
3
Sculptor Capital
New York
$20M +$19.9M +1,980,000 New
HIM
4
HGC Investment Management
Ontario, Canada
$15.1M +$15.1M +1,500,000 New
PAMP
5
Polar Asset Management Partners
Ontario, Canada
$15.1M +$15.1M +1,500,000 New
GCL
6
Glazer Capital LLC
New York
$12.3M +$12.2M +1,218,664 New
LA
7
Linden Advisors
New York
$10.1M +$10M +1,000,000 New
Two Sigma Investments
8
Two Sigma Investments
New York
$7.31M +$7.28M +725,000 New
Millennium Management
9
Millennium Management
New York
$7.05M +$7.03M +700,000 New
SCM
10
Shaolin Capital Management
Florida
$7.05M +$7.03M +700,000 New
MF
11
Magnetar Financial
Illinois
$6.07M +$6.02M +600,000 New
MCM
12
Moore Capital Management
New York
$5.05M +$5.02M +500,000 New
PMAM
13
Picton Mahoney Asset Management
Ontario, Canada
$5.05M +$5.02M +500,000 New
HI
14
HBK Investments
Texas
$5.04M +$5.02M +500,000 New
LP
15
LMR Partners
United Kingdom
$4.03M +$4.01M +400,000 New
WRBC
16
W.R. Berkley Corp
Connecticut
$4M +$3.98M +396,960 New
RCM
17
Rivernorth Capital Management
Florida
$3.02M +$3.01M +300,000 New
SSA
18
Schonfeld Strategic Advisors
New York
$2.9M +$2.89M +287,641 New
AGM
19
Alpine Global Management
New York
$2.53M +$2.51M +250,002 New
CS
20
Clear Street
New York
$2.44M +$2.43M +242,121 New
MC
21
Meteora Capital
Florida
$2.39M +$2.38M +237,501 New
GAM
22
Gritstone Asset Management
Maryland
$2.01M +$2.01M +200,000 New
CCM
23
Context Capital Management
California
$1.64M +$1.63M +162,191 New
MSU
24
Mizuho Securities USA
New York
$1.58M +$1.59M +158,447 New
BFM
25
Boothbay Fund Management
New York
$1.27M +$1.26M +125,316 New
1
2

AACBU Hedge Fund Activity: Q1 2025 in Review

30 of the 7,458 institutional investors tracked by Wall St. Rank reported a position in Artius II Acquisition Inc Units (AACBU) for Q1 2025, worth a combined $188M.

Buyers outnumbered sellers: 30 funds opened new AACBU positions and 0 closed out — a net gain of 30 holders — while 0 added to existing stakes and 0 trimmed.

The largest buyer was Healthcare of Ontario Pension Plan (HOOPP) Trust Fund, opening a new position worth an estimated $20.1M.

  • 30 institutional investors held Artius II Acquisition Inc Units (AACBU) as of Q1 2025, up from 0 in Q4 2024.
  • Funds reported $188M of Artius II Acquisition Inc Units stock for Q1 2025.
  • 30 funds opened new Artius II Acquisition Inc Units positions in Q1 2025 and 0 closed out, a net change of +30 holders.
  • The largest Artius II Acquisition Inc Units buyer in Q1 2025 was Healthcare of Ontario Pension Plan (HOOPP) Trust Fund, an estimated $20.1M added.

Based on aggregated 13F filings for Q1 2025.