BAKER BROS. ADVISORS LP

Holdings History for CERUS CORP - Common Stock, par value $0.001 per share (CERS)

Symbol: CERS on Nasdaq
Investment type: Equity / Common Stock, par value $0.001 per share
Latest Disclosed Shares Owned: 10,028,209 shares
Security Ownership %: 5.2%

Shares, Excluding Options vs Price

Value, Excluding Options

Julian C. Baker ownership in CERUS CORP Common Stock, par value $0.001 per share (CERS)

14 Nov 2025 - Julian C. Baker has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 10,028,209 shares of CERUS CORP Common Stock, par value $0.001 per share (CERS). This represents 5.2% ownership of the company. In their previous filing dated 14 Aug 2025, BAKER BROS. ADVISORS LP had reported owning 12,903,708 shares, indicating a decrease of +22%. .

Reporting Name	Ownership %	Change	Value $	Shares owned	Change	Activity %	Price	Form	Report date	Filing time
Julian C. Baker	5.2%	-23%	$15,944,852	10,028,209	-2,875,499	-22%	$1.59	13G/A	30 Sep 2025	14 Nov 2025, 16:24
Julian C. Baker	6.8%		$18,710,377	12,903,708			$1.45	13G/A	30 Jun 2025	14 Aug 2025, 16:26

Holdings date	Weight	Change	Value $	Shares	Change	Activity %	Price	All Holders
31 Dec 2025	0.12%	0%	$20,617,191	10,008,345	0		$2.06	Q4 2025
30 Sep 2025	0.11%	-0.03%	$15,913,269	10,008,345	-2,875,499	-22%	$1.59	Q3 2025
30 Jun 2025	0.18%	-0.09%	$18,166,220	12,883,844	-6,467,243	-33%	$1.41	Q2 2025
31 Mar 2025	0.3%	-0%	$26,898,011	19,351,087	-126,252		$1.39	Q1 2025
31 Dec 2024	0.32%	0%	$29,995,102	19,477,339	0		$1.54	Q4 2024
30 Sep 2024	0.35%	0%	$33,890,570	19,477,339	0		$1.74	Q3 2024
30 Jun 2024	0.44%	0%	$34,280,117	19,477,339	0		$1.76	Q2 2024
31 Mar 2024	0.46%	0%	$36,812,171	19,477,339	0		$1.89	Q1 2024
31 Dec 2023	0.48%	+0.06%	$42,071,052	19,477,339	+2,237,838	+13%	$2.16	Q4 2023
30 Sep 2023	0.16%	+0.01%	$27,927,992	17,239,501	+1,171,943	+7.3%	$1.62	Q3 2023
30 Jun 2023	0.23%	0%	$39,526,193	16,067,558	0		$2.46	Q2 2023
31 Mar 2023	0.26%	0%	$47,720,647	16,067,558	0		$2.97	Q1 2023
31 Dec 2022	0.35%	0%	$58,646,587	16,067,558	0		$3.65	Q4 2022
30 Sep 2022	0.38%	0%	$57,843,000	16,067,558	0		$3.60	Q3 2022
30 Jun 2022	0.48%	+0.07%	$84,997,000	16,067,558	+2,354,363	+17%	$5.29	Q2 2022
31 Mar 2022	0.43%	0%	$75,285,000	13,713,195	0		$5.49	Q1 2022
31 Dec 2021	0.45%	0%	$93,387,000	13,713,195	0		$6.81	Q4 2021
30 Sep 2021	0.37%	0%	$83,513,000	13,713,195	0		$6.09	Q3 2021
30 Jun 2021	0.36%	0%	$81,045,000	13,713,195	0		$5.91	Q2 2021
31 Mar 2021	0.36%	0%	$82,416,000	13,713,195	0		$6.01	Q1 2021
31 Dec 2020	0.36%	0%	$94,895,000	13,713,195	0		$6.92	Q4 2020
30 Sep 2020	0.34%	0%	$85,845,000	13,713,195	0		$6.26	Q3 2020
30 Jun 2020	0.4%	0%	$90,507,000	13,713,195	0		$6.60	Q2 2020
31 Mar 2020	0.39%	+0.08%	$63,766,000	13,713,195	+2,963,258	+28%	$4.65	Q1 2020
31 Dec 2019	0.24%	0%	$45,365,000	10,749,937	0		$4.22	Q4 2019
30 Sep 2019	0.38%	0%	$55,416,000	10,749,937	0		$5.16	Q3 2019
30 Jun 2019	0.41%	0%	$60,415,000	10,749,937	0		$5.62	Q2 2019
31 Mar 2019	0.43%	0%	$66,972,000	10,749,937	0		$6.23	Q1 2019
31 Dec 2018	0.45%	0%	$54,502,000	10,749,937	0		$5.07	Q4 2018
30 Sep 2018	0.51%	0%	$77,507,000	10,749,937	0		$7.21	Q3 2018
30 Jun 2018	0.54%	0%	$71,702,000	10,749,937	0		$6.67	Q2 2018
31 Mar 2018	0.5%	+0.05%	$58,910,000	10,749,937	+1,004,728	+10%	$5.48	Q1 2018
31 Dec 2017	0.29%	0%	$32,939,000	9,745,209	0		$3.38	Q4 2017
30 Sep 2017	0.22%	-0.01%	$26,604,000	9,745,209	-496,734	-4.8%	$2.73	Q3 2017
30 Jun 2017	0.23%	-0.06%	$25,707,000	10,241,943	-2,811,332	-22%	$2.51	Q2 2017
31 Mar 2017	0.48%	0%	$58,087,000	13,053,275	0		$4.45	Q1 2017
31 Dec 2016	0.56%	0%	$56,782,000	13,053,275	0		$4.35	Q4 2016
30 Sep 2016	0.74%	-0.03%	$81,061,000	13,053,275	-500,000	-3.7%	$6.21	Q3 2016
30 Jun 2016	0.89%	0%	$84,572,000	13,553,275	0		$6.24	Q2 2016
31 Mar 2016	0.85%	0%	$80,371,000	13,553,275	0		$5.93	Q1 2016
31 Dec 2015	0.71%	0%	$85,657,000	13,553,275	0		$6.32	Q4 2015
30 Sep 2015	0.57%	0%	$61,532,000	13,553,275	0		$4.54	Q3 2015
30 Jun 2015	0.62%	0%	$70,341,000	13,553,275	0		$5.19	Q2 2015
31 Mar 2015	0.47%	+0.06%	$56,517,000	13,553,275	+1,850,548	+16%	$4.17	Q1 2015
31 Dec 2014	0.75%	-0.02%	$73,025,000	11,702,727	-237,451	-2%	$6.24	Q4 2014
30 Sep 2014	0.61%	+0.09%	$47,880,000	11,940,178	+1,693,587	+17%	$4.01	Q3 2014
30 Jun 2014	0.52%	+0.09%	$42,523,000	10,246,591	+1,791,285	+21%	$4.15	Q2 2014
31 Mar 2014	0.52%	0%	$40,585,000	8,455,306	0		$4.80	Q1 2014
31 Dec 2013	0.77%	0%	$54,537,000	8,455,306	0		$6.45	Q4 2013

* 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.