CITADEL ADVISORS LLC

Holdings History for Boundless Bio, Inc. - Common Stock, par value $0.0001 per share (BOLD)

Symbol: BOLD on Nasdaq
Investment type: Equity / Common Stock, par value $0.0001 per share
Latest Disclosed Shares Owned: 1,433,388 shares
Security Ownership %: 6.4%

Shares, Excluding Options vs Price

Value, Excluding Options

Kenneth Griffin ownership in Boundless Bio, Inc. Common Stock, par value $0.0001 per share (BOLD)

04 Dec 2025 - Kenneth Griffin has filed an SCHEDULE 13G form with the Securities and Exchange Commission (SEC) disclosing ownership of 1,433,388 shares of Boundless Bio, Inc. Common Stock, par value $0.0001 per share (BOLD). This represents 6.4% ownership of the company. This is the first filing by CITADEL ADVISORS LLC disclosing ownership of Boundless Bio, Inc. Common Stock, par value $0.0001 per share (BOLD).

Reporting Name	Ownership %	Change	Value $	Shares owned	Change	Activity %	Price	Form	Report date	Filing time
Kenneth Griffin	6.4%		$1,763,067	1,433,388			$1.23	13G	26 Nov 2025	04 Dec 2025, 18:35

Holdings date	Weight	Change	Value $	Shares	Change	Activity %	Price	All Holders
31 Dec 2025	0%	+0%	$1,624,685	1,353,904	+477,492	+54%	$1.20	Q4 2025
30 Sep 2025	0%	+0%	$1,077,986	876,412	+45,476	+5.5%	$1.23	Q3 2025
30 Jun 2025	0%	0%	$839,245	830,936	0		$1.01	Q2 2025
31 Mar 2025	0%	+0%	$1,254,713	830,936	+40,297		$1.51	Q1 2025
31 Dec 2024	0%	+0%	$2,292,853	790,639	+72,112	+10%	$2.90	Q4 2024
30 Sep 2024	0%	0%	$2,493,289	718,527	0		$3.47	Q3 2024
30 Jun 2024	0%	-0%	$2,726,321	718,527	-136,277	-16%	$3.79	Q2 2024
31 Mar 2024	0.01%	+0.01%	$11,980,725	854,804	+854,804	NEW	$14.02	Q1 2024

* 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.