Artius II Acquisition Inc. - Class A Common Stock (AACB)
CUSIP: G0509J115
Q2 2025 13F Holders as of 30 Jun 2025
- Type / Class
- Equity / Class A Common Stock
- Shares outstanding
- 22,189,349
- Total 13F shares
- 18,992,045
- Share change
- +18,842,027
- Total reported value
- $192,176,114
- Price per share
- $10.12
- Number of holders
- 41
- Value change
- +$190,675,934
- Number of buys
- 40
Quarterly Holders Quick Answers
What is CUSIP G0509J115?
CUSIP G0509J115 identifies AACB - Artius II Acquisition Inc. - Class A Common Stock in SEC institutional holdings data.
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- Newer quarter: Q3 2025
Recent filing periods for CUSIP G0509J115:
Top shareholders of AACB - Artius II Acquisition Inc. - Class A Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| Artius II Acquisition Partners LLC |
13D/G
3/4/5
|
10%+ Owner |
20%
|
5,675,000
|
$56,069,000 | $0 | 14 Feb 2025 | |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND |
13F
|
Company |
9%
|
2,000,000
|
$20,220,000 | — | 31 Mar 2025 | |
| AQR Arbitrage LLC |
13F
|
Company |
8.9%
|
1,980,000
|
$20,017,800 | — | 31 Mar 2025 | |
| Sculptor Capital LP |
13F
|
Company |
8.9%
|
1,980,000
|
$19,988,100 | — | 31 Mar 2025 | |
| AQR CAPITAL MANAGEMENT LLC |
13D/G
|
— |
6.4%
|
1,502,205
|
$15,202,315 | -$4,835,285 | 30 Jun 2025 | |
| HGC Investment Management Inc. |
13F
|
Company |
6.8%
|
1,500,000
|
$15,120,000 | — | 31 Mar 2025 | |
| Polar Asset Management Partners Inc. |
13D/G
13F
|
Company |
6.3%
|
1,500,000
|
$15,120,000 | $0 | 31 Mar 2025 | |
| GLAZER CAPITAL, LLC |
13D/G
13F
|
Company |
5.5%
|
1,218,664
|
$12,284,133 | $0 | 31 Mar 2025 | |
| LINDEN ADVISORS LP |
13F
|
Company |
4.5%
|
1,000,000
|
$10,110,000 | — | 31 Mar 2025 | |
| TWO SIGMA INVESTMENTS, LP |
13F
|
Company |
3.3%
|
725,000
|
$7,308,000 | — | 31 Mar 2025 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
3.2%
|
700,000
|
$7,049,000 | — | 31 Mar 2025 | |
| Shaolin Capital Management LLC |
13F
|
Company |
3.2%
|
700,000
|
$7,049,000 | — | 31 Mar 2025 | |
| Magnetar Financial LLC |
13F
|
Company |
2.7%
|
600,000
|
$6,066,000 | — | 31 Mar 2025 | |
| MOORE CAPITAL MANAGEMENT, LP |
13F
|
Company |
2.3%
|
500,000
|
$5,055,000 | — | 31 Mar 2025 | |
| PICTON MAHONEY ASSET MANAGEMENT |
13F
|
Company |
2.3%
|
500,000
|
$5,048,000 | — | 31 Mar 2025 | |
| HBK INVESTMENTS L P |
13F
|
Company |
2.3%
|
500,000
|
$5,035,000 | — | 31 Mar 2025 | |
| LMR Partners LLP |
13F
|
Company |
1.8%
|
400,000
|
$4,028,000 | — | 31 Mar 2025 | |
| BERKLEY W R CORP |
13F
|
Company |
1.8%
|
396,960
|
$4,001,357 | — | 31 Mar 2025 | |
| RIVERNORTH CAPITAL MANAGEMENT, LLC |
13F
|
Company |
1.4%
|
300,000
|
$3,024,000 | — | 31 Mar 2025 | |
| Schonfeld Strategic Advisors LLC |
13F
|
Company |
1.3%
|
287,641
|
$2,903,735 | — | 31 Mar 2025 | |
| Alpine Global Management, LLC |
13F
|
Company |
1.1%
|
250,002
|
$2,527,520 | — | 31 Mar 2025 | |
| CLEAR STREET LLC |
13F
|
Company |
1.1%
|
242,121
|
$2,438,158 | — | 31 Mar 2025 | |
| METEORA CAPITAL, LLC |
13F
|
Company |
1.1%
|
237,501
|
$2,394,010 | — | 31 Mar 2025 | |
| GRITSTONE ASSET MANAGEMENT LLC |
13F
|
Company |
0.9%
|
200,000
|
$2,014,000 | — | 31 Mar 2025 | |
| Context Capital Management, LLC |
13F
|
Company |
0.73%
|
162,191
|
$1,637,318 | — | 31 Mar 2025 | |
| MIZUHO SECURITIES USA LLC |
13F
|
Company |
0.71%
|
158,447
|
$1,584,470 | — | 31 Mar 2025 | |
| BOOTHBAY FUND MANAGEMENT, LLC |
13F
|
Company |
0.57%
|
125,316
|
$1,265,065 | — | 31 Mar 2025 | |
| ATW SPAC MANAGEMENT LLC |
13F
|
Company |
0.57%
|
125,316
|
$1,261,932 | — | 31 Mar 2025 | |
| K2 PRINCIPAL FUND, L.P. |
13F
|
Company |
0.51%
|
112,006
|
$1,129,020 | — | 31 Mar 2025 | |
| Centiva Capital, LP |
13F
|
Company |
0.45%
|
100,000
|
$1,011,000 | — | 31 Mar 2025 | |
| PERISCOPE CAPITAL INC. |
13F
|
Company |
0.45%
|
100,000
|
$1,009,500 | — | 31 Mar 2025 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
0.02%
|
5,000
|
$50,550 | — | 31 Mar 2025 | |
| Boon Sim |
3/4/5
|
CEO, CFO, Director, 10%+ Owner |
—
class O/S missing
|
175,000
|
— | — | 12 Feb 2025 |
Institutional Holders of Artius II Acquisition Inc. - Class A Common Stock (AACB) as of Q2 2025
As of 30 Jun 2025,
Artius II Acquisition Inc. - Class A Common Stock (AACB) was held by
41 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
18,992,045 shares.
The largest 10 holders included
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND, AQR Arbitrage LLC, Sculptor Capital LP, GLAZER CAPITAL, LLC, Linden Advisors LP, Polar Asset Management Partners Inc., Westchester Capital Management, LLC, Alberta Investment Management Corp, PICTON MAHONEY ASSET MANAGEMENT, and TWO SIGMA INVESTMENTS, LP.
This page lists
41
institutional shareholders reporting positions in this security
for the Q2 2025 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q2 2025 vs Q4 2025 Across Filers
Q4 2025 holders
47
Q2 2025 holders
41
Holder diff
-6
| Investor | Q4 2025 Shares | Q2 2025 Shares | Share Diff | Share Chg % | Q4 2025 Value $ | Q2 2025 Value $ | Value Diff $ | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.
An asterisk sign (*) next to the price indicates that the price is likely invalid.