Artius II Acquisition Inc
AACB
47 hedge funds and large institutions have $215M invested in Artius II Acquisition Inc in 2025 Q4 according to their latest regulatory filings, with 6 funds opening new positions, 9 increasing their positions, 10 reducing their positions, and 1 closing their positions.
500% more first-time investments, than exits
New positions opened: 6 | Existing positions closed: 1
9% more funds holding
Funds holding: 43 → 47 (+4)
4.93% more ownership
Funds ownership: 89.23% → 94.16% (+4.9%)
0% more capital invested
Capital invested by funds: $214M → $215M (+$952K)
0% more funds holding in top 10
Funds holding in top 10: 1 → 1 (0)
10% less repeat investments, than reductions
Existing positions increased: 9 | Existing positions reduced: 10
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Hudson Bay Capital Management
Stamford,
Connecticut
|
+$5.64M |
| 2 |
Verition Fund Management
Greenwich,
Connecticut
|
+$3.09M |
| 3 |
Toronto Dominion Bank
Toronto, Ontario,
Ontario, Canada
|
+$2.22M |
| 4 |
FBCM
Fort Baker Capital Management
Larkspur,
California
|
+$2.13M |
| 5 |
SCM
Shaolin Capital Management
Miami,
Florida
|
+$1.21M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Toronto,
Ontario, Canada
|
-$11.8M |
| 2 |
SC
Sculptor Capital
New York
|
-$5.13M |
| 3 |
PAMP
Polar Asset Management Partners
Toronto,
Ontario, Canada
|
-$1.92M |
| 4 |
GCL
Glazer Capital LLC
New York
|
-$407K |
| 5 |
BFM
Boothbay Fund Management
New York
|
-$308K |
AACB Hedge Fund Activity: Q4 2025 in Review
47 of the 8,228 institutional investors tracked by Wall St. Rank reported a position in Artius II Acquisition Inc (AACB) for Q4 2025, worth a combined $215M — up 0.44% from $214M a quarter earlier.
Buyers outnumbered sellers: 6 funds opened new AACB positions and 1 closed out — a net gain of 5 holders — while 9 added to existing stakes and 10 trimmed.
The largest buyer was Hudson Bay Capital Management, opening a new position worth an estimated $5.64M. The largest seller was Healthcare of Ontario Pension Plan (HOOPP) Trust Fund, cutting an estimated $11.8M.
- 47 institutional investors held Artius II Acquisition Inc (AACB) as of Q4 2025, up from 43 in Q3 2025.
- Funds reported $215M of Artius II Acquisition Inc stock for Q4 2025, up 0.44% quarter-over-quarter.
- 6 funds opened new Artius II Acquisition Inc positions in Q4 2025 and 1 closed out, a net change of +5 holders.
- The largest Artius II Acquisition Inc buyer in Q4 2025 was Hudson Bay Capital Management, an estimated $5.64M added.
- The largest Artius II Acquisition Inc seller in Q4 2025 was Healthcare of Ontario Pension Plan (HOOPP) Trust Fund, an estimated $11.8M sold.
Based on aggregated 13F filings for Q4 2025.