Artius II Acquisition AACB Institutional Ownership

AACB

$10.59 +0.00 (+0.00%)

At close: Aug 27, 2026 · 4:00 PM EDT

Institutions by Trading Activity

51 Institutions

Increased 9 17.6%

Unchanged 35 68.6%

Reduced 7 13.7%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

96.21%

▼-0.45 pp QoQ

Shares Held by Institutions

21.17Mn

of 22.00Mn outstanding

▲+0.84% QoQ

Shares Outstanding

22.00Mn

834.26K held outside 13F filers

Institutional Investors

filed 13F for Jun 2026

▼-1 vs prior quarter

Net Shares Added (QoQ)

+176.39K

accumulated since last quarter

Value of Holdings

$224.15Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

These investors held 96.2% of outstanding shares in June 2026, down from 96.7% in March 2026.

They increased total shares held in AACB by 0.84% quarter over quarter, and investors in Artius II Acquisition increased 30.77% from a year ago.
Among the 51 funds, 9 bought more Artius II Acquisition shares, 7 sold down, and 35 held their ground.
Combined, these investors held 21.17Mn shares in AACB for June 2026, up by 176.38K shares quarter on quarter, and up 1.26Mn shares year over year.
As of June 30, 2026, HGC Investment Management Inc. held the largest stake in Artius II Acquisition with 1.5Mn shares, accounting for 6.82% of total shares outstanding.
Top purchasers of AACB stock for the quarter ending June 2026 included Governors Lane LP (250.0K), HIGHBRIDGE CAPITAL MANAGEMENT LLC (177.9K), Toronto Dominion Bank (150.19K), PERISCOPE CAPITAL INC. (50.0K), Quarry LP (41.74K).
The largest sales of AACB for the quarter ending June 2026 came from Shaolin Capital Management LLC (198.17K), Jain Global LLC (164.76K), Verition Fund Management LLC (97.33K), RLH Capital LLC (68.76K), WOLVERINE ASSET MANAGEMENT LLC (3.87K).
According to Business Quant data, leading holders of AACB for June 2026 are HGC Investment Management Inc. (1.5Mn), AQR Arbitrage LLC (1.44Mn), GLAZER CAPITAL, LLC (1.3Mn), LINDEN ADVISORS LP (1.0Mn), Westchester Capital Management, LLC (995.94K), Alberta Investment Management Corp (980.0K), HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND (850.0K), Polar Asset Management Partners Inc. (800.0K), PICTON MAHONEY ASSET MANAGEMENT (750.0K), TWO SIGMA INVESTMENTS, LP (725.0K).

Form 13F Holdings

51 Institutional Holders

Report period 30 Jun, 2026

Total shares held 21.17Mn

Of outstanding 96.21%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	HGC Investment Management Inc.	0001711200	1,500,000	6.82%	0	0.00%	$15.74Mn
2	AQR Arbitrage LLC	0001167456	1,440,225	6.55%	▲8,042	+0.56%	$15.09Mn
3	GLAZER CAPITAL, LLC	0001076809	1,295,130	5.89%	▲101	+0.01%	$13.59K
4	LINDEN ADVISORS LP	0001279396	1,000,000	4.55%	0	0.00%	$10.48Mn
5	Westchester Capital Management, LLC	0001512805	995,939	4.53%	0	0.00%	$10.44Mn
6	Alberta Investment Management Corp	0001463559	980,000	4.45%	0	0.00%	$10.27Mn
7	HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND	0001535845	850,000	3.86%	0	0.00%	$8.91Mn
8	Polar Asset Management Partners Inc.	0001326389	800,000	3.64%	0	0.00%	$8.39Mn
9	PICTON MAHONEY ASSET MANAGEMENT	0001539041	750,000	3.41%	0	0.00%	$7.87Mn
10	TWO SIGMA INVESTMENTS, LP	0001179392	725,000	3.30%	0	0.00%	$7.61Mn
11	Radcliffe Capital Management, L.P.	0001218275	678,671	3.08%	0	0.00%	$7.12Mn
12	D. E. Shaw & Co., Inc.	0001009207	600,000	2.73%	0	0.00%	$6.29Mn
12	Magnetar Financial LLC	0001352851	600,000	2.73%	0	0.00%	$6.29Mn
13	Hudson Bay Capital Management LP	0001393825	550,000	2.50%	0	0.00%	$5.76Mn
14	MOORE CAPITAL MANAGEMENT, LP	0001448574	500,000	2.27%	0	0.00%	$5.25Mn
14	Sculptor Capital LP	0001054587	500,000	2.27%	0	0.00%	$5.25Mn
14	Governors Lane LP	0001644187	500,000	2.27%	▲250,000	+100.00%	$5.25Mn
15	HBK INVESTMENTS L P	0001011443	499,998	2.27%	0	0.00%	$5.24Mn
16	Goldman Sachs Group Inc	0000886982	462,806	2.10%	0	0.00%	$4.85Mn
17	PERISCOPE CAPITAL INC.	0001695320	425,000	1.93%	▲50,000	+13.33%	$4.46Mn

Showing 1 to 20 of 51 holders