Polar Asset Management Partners Inc.

Holdings History for Artius II Acquisition Inc. - Class A Common Stock (AACB)

Symbol: AACB on Nasdaq
Investment type: Equity / Class A Common Stock
Latest Disclosed Shares Owned: 812,332 shares
Security Ownership %: 3.6%

Shares, Excluding Options vs Price

Value, Excluding Options

Polar Asset Management Partners Inc. ownership in Artius II Acquisition Inc. Class A Common Stock (AACB)

17 Feb 2026 - Polar Asset Management Partners Inc. has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 812,332 shares of Artius II Acquisition Inc. Class A Common Stock (AACB). This represents 3.6% ownership of the company. This is the first filing by Polar Asset Management Partners Inc. disclosing ownership of Artius II Acquisition Inc. Class A Common Stock (AACB).

Reporting Name	Ownership %	Change	Value $	Shares owned	Change	Activity %	Price	Form	Report date	Filing time
Polar Asset Management Partners Inc.	3.6%		$8,358,896	812,332			$10.29	13G/A	31 Dec 2025	17 Feb 2026, 09:18

Holdings date	Weight	Change	Value $	Shares	Change	Activity %	Price	All Holders
31 Dec 2025	0.17%	-0.04%	$8,367,020	812,332	-187,668	-19%	$10.30	Q4 2025
30 Sep 2025	0.21%	0%	$10,170,000	1,000,000	0		$10.17	Q3 2025
30 Jun 2025	0.25%	+0.25%	$10,120,000	1,000,000	+1,000,000	NEW	$10.12	Q2 2025

* 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.