Artius II Acquisition Inc Units
AACBU
3 hedge funds and large institutions have $4.61M invested in Artius II Acquisition Inc Units in 2025 Q3 according to their latest regulatory filings, with 0 funds opening new positions, 2 increasing their positions, 0 reducing their positions, and 3 closing their positions.
10% less ownership
Funds ownership: 12.22% → 2.23% (-10%)
50% less funds holding
Funds holding: 6 → 3 (-3)
82% less capital invested
Capital invested by funds: $25.4M → $4.61M (-$20.8M)
100% less funds holding in top 10
Funds holding in top 10: 1 → 0 (-1)
100% less first-time investments, than exits
New positions opened: 0 | Existing positions closed: 3
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
CS
Clear Street
New York
|
+$8.26K |
| 2 |
UBS Group
Zurich,
Switzerland
|
+$395 |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
HIM
HGC Investment Management
Toronto,
Ontario, Canada
|
-$15.5M |
| 2 |
RCM
Rivernorth Capital Management
West Palm Beach,
Florida
|
-$3.15M |
| 3 |
Millennium Management
New York
|
-$2.1M |
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
|
LP
1
LMR Partners
London,
United Kingdom
| $4.14M | – | – | – |
|
|
CS
2
Clear Street
New York
| $467K | +$8.26K | +795 | +2% |
|
|
3
UBS Group
Zurich,
Switzerland
| $2.46K | +$395 | +38 | +19% |
|
|
HIM
4
HGC Investment Management
Toronto,
Ontario, Canada
| – | -$15.5M | -1,500,000 | Closed |
|
|
RCM
5
Rivernorth Capital Management
West Palm Beach,
Florida
| – | -$3.15M | -300,000 | Closed |
|
|
6
Millennium Management
New York
| – | -$2.1M | -200,000 | Closed |
|
AACBU Hedge Fund Activity: Q3 2025 in Review
3 of the 7,620 institutional investors tracked by Wall St. Rank reported a position in Artius II Acquisition Inc Units (AACBU) for Q3 2025, worth a combined $4.61M — down 82% from $25.4M a quarter earlier.
Sellers outnumbered buyers: 3 funds closed out of AACBU and 0 opened new positions — a net loss of 3 holders — while 0 trimmed existing stakes and 2 added.
The largest buyer was Clear Street, adding an estimated $8.26K. The largest seller was HGC Investment Management, exiting entirely with an estimated $15.5M sold.
- 3 institutional investors held Artius II Acquisition Inc Units (AACBU) as of Q3 2025, down from 6 in Q2 2025.
- Funds reported $4.61M of Artius II Acquisition Inc Units stock for Q3 2025, down 82% quarter-over-quarter.
- 0 funds opened new Artius II Acquisition Inc Units positions in Q3 2025 and 3 closed out, a net change of -3 holders.
- The largest Artius II Acquisition Inc Units buyer in Q3 2025 was Clear Street, an estimated $8.26K added.
- The largest Artius II Acquisition Inc Units seller in Q3 2025 was HGC Investment Management, an estimated $15.5M sold.
Based on aggregated 13F filings for Q3 2025.