13F reference period
Q2 2026
Security Snapshot
Artius II Acquisition Inc. - Class A Ordinary Shares, par value $0.0001 per share (AACBU) Institutional Ownership
CUSIP: G0509J107
13F Institutional Holders and Ownership History from Q1 2025 to Q2 2026
Institutions Reporting
3
Shares (Excl. Options)
452.85K
Full value: 452,854 · shares · 30 Jun 2026Price
$10.68
The headline uses the Q2 2026 reference period after its reporting deadline. Available reports may still be incomplete or amended.
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- Security type / class
- Equity / Class A Ordinary Shares, par value $0.0001 per share
- Symbol
- AACBU
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 452,854
- Total 13F value
- $4,836,481
- Portfolio coverage rank
- 0%
- Share change
- +23
- Value change
- +$245
- Number of holders
- 3
- Shares outstanding
- 22,172,949
- SEC-reported price per share
- $10.68
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
2 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Filing notes and source
Key facts
- AACBU - Artius II Acquisition Inc. - Class A Ordinary Shares, par value $0.0001 per share is tracked under CUSIP G0509J107.
- 3 institutions reported positions in Q2 2026.
- 3 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 3 to 3 between Q1 2026 and Q2 2026.
- SEC-reported value moved from to
$4.85M
Full value: $4,845,271 · USD · 31 Mar 2026.$4.84M
Full value: $4,836,481 · USD · 30 Jun 2026
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 3 institutions filings for Q2 2026.
Security key
G0509J107
13F reference period
Q2 2026
13F holders
3
13D/G owners
3
CIK / CUSIP context first
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP G0509J107:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
3
Security
AACBU
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Polar Asset Management Partners Inc. | 6.3% | $15,120,000 | 1,500,000 | Polar Asset Management Partners Inc. | 31 Mar 2025 | |||
| GLAZER CAPITAL, LLC | 5.5% | $12,284,133 | 1,218,664 | Glazer Capital, LLC | 31 Mar 2025 | |||
| Sculptor Capital LP | 4.5% | -24% | $10,590,000 | -$4,236,000 | 1,000,000 | -29% | Sculptor Capital LP | 30 Sep 2025 |
As of 30 Jun 2026,
3
institutional investors reported holding
shares of
Artius II Acquisition Inc. - Class A Ordinary Shares, par value $0.0001 per share (AACBU).
This represents
2%
of the company’s total
outstanding shares.
452.85K
Full value: 452,854 · shares · 30 Jun 202622.17M
Full value: 22,172,949 · shares · Stored outstanding share countQuarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
6
Headline period
Q2 2026
Rows shown
1-6 of 6
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q2 | 452,854 | $4,836,481 | +$245 | $10.68 | 3 |
| 2026 Q1 | 452,831 | $4,845,271 | +$33,385 | $10.70 | 3 |
| 2025 Q4 | 449,711 | $4,766,922 | +$45,825 | $10.60 | 3 |
| 2025 Q3 | 445,391 | $4,609,797 | -$20,744,607 | $10.35 | 3 |
| 2025 Q2 | 2,444,558 | $25,412,859 | -$141,842,219 | $10.50 | 6 |
| 2025 Q1 | 16,626,165 | $167,761,435 | +$167,761,435 | $10.08 | 29 |