Baker Bros. Advisors Lp

13F 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 Ownership: 10M 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)

2025-11-14 - Julian C. Baker has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 10M shares of CERUS CORP Common Stock, par value $0.001 per share (CERS). This represents 5.2% percent ownership of the company. In their previous filing dated 2025-08-14, BAKER BROS. ADVISORS LP had reported owning 12.9M shares, indicating a decrease of -22.3% percent.

Reporting Name	Ownership %	Change	Value $	Shares owned	Change	Activity %	Price	Form	Report date	Filed at
Julian C. Baker	5.2%	-22.9%	$15.9M	10M	-2,875,499	-22.3%	$1.59	13G/A	9/30/2025	14 Nov 2025 16:24:23
Julian C. Baker	6.8%		$16.9M	12.9M			$1.31	13G/A	6/30/2025	14 Aug 2025 16:26:01

Holdings date	Weight	Change	Value $	Shares	Change	Activity %	Price	All Holders
9/30/2025	0.11%	-0.03%	$15.9M	10M	-2,875,499	-22.3%	$1.59	Q3 2025
6/30/2025	0.18%	-0.09%	$18.2M	12.9M	-6,467,243	-33.4%	$1.41	Q2 2025
3/31/2025	0.3%	0%	$26.9M	19.4M	-126,252		$1.39	Q1 2025
12/31/2024	0.32%		$30M	19.5M			$1.54	Q4 2024
9/30/2024	0.35%		$33.9M	19.5M			$1.74	Q3 2024
6/30/2024	0.44%		$34.3M	19.5M			$1.76	Q2 2024
3/31/2024	0.46%		$36.8M	19.5M			$1.89	Q1 2024
12/31/2023	0.48%	+0.03%	$42.1M	19.5M	+2,237,838	+13%	$2.16	Q4 2023
9/30/2023	0.16%	+0.01%	$27.9M	17.2M	+1,171,943	+7.29%	$1.62	Q3 2023
6/30/2023	0.23%		$39.5M	16.1M			$2.46	Q2 2023
3/31/2023	0.26%		$47.7M	16.1M			$2.97	Q1 2023
12/31/2022	0.35%		$58.6M	16.1M			$3.65	Q4 2022
9/30/2022	0.38%		$57.8M	16.1M			$3.60	Q3 2022
6/30/2022	0.48%	+0.07%	$85M	16.1M	+2,354,363	+17.2%	$5.29	Q2 2022
3/31/2022	0.43%		$75.3M	13.7M			$5.49	Q1 2022
12/31/2021	0.45%		$93.4M	13.7M			$6.81	Q4 2021
9/30/2021	0.37%		$83.5M	13.7M			$6.09	Q3 2021
6/30/2021	0.36%		$81M	13.7M			$5.91	Q2 2021
3/31/2021	0.36%		$82.4M	13.7M			$6.01	Q1 2021
12/31/2020	0.36%		$94.9M	13.7M			$6.92	Q4 2020
9/30/2020	0.34%		$85.8M	13.7M			$6.26	Q3 2020
6/30/2020	0.4%		$90.5M	13.7M			$6.60	Q2 2020
3/31/2020	0.39%	+0.08%	$63.8M	13.7M	+2,963,258	+27.6%	$4.65	Q1 2020
12/31/2019	0.24%		$45.4M	10.7M			$4.22	Q4 2019
9/30/2019	0.38%		$55.4M	10.7M			$5.16	Q3 2019
6/30/2019	0.41%		$60.4M	10.7M			$5.62	Q2 2019
3/31/2019	0.43%		$67M	10.7M			$6.23	Q1 2019
12/31/2018	0.45%		$54.5M	10.7M			$5.07	Q4 2018
9/30/2018	0.51%		$77.5M	10.7M			$7.21	Q3 2018
6/30/2018	0.54%		$71.7M	10.7M			$6.67	Q2 2018
3/31/2018	0.5%	+0.05%	$58.9M	10.7M	+1,004,728	+10.3%	$5.48	Q1 2018
12/31/2017	0.29%		$32.9M	9.75M			$3.38	Q4 2017
9/30/2017	0.22%	-0.01%	$26.6M	9.75M	-496,734	-4.85%	$2.73	Q3 2017
6/30/2017	0.22%	-0.06%	$25.7M	10.2M	-2,811,332	-21.5%	$2.51	Q2 2017
3/31/2017	0.48%		$58.1M	13.1M			$4.45	Q1 2017
12/31/2016	0.56%		$56.8M	13.1M			$4.35	Q4 2016
9/30/2016	0.74%	-0.03%	$81.1M	13.1M	-500,000	-3.69%	$6.21	Q3 2016
6/30/2016	0.89%		$84.6M	13.6M			$6.24	Q2 2016
3/31/2016	0.85%		$80.4M	13.6M			$5.93	Q1 2016
12/31/2015	0.71%		$85.7M	13.6M			$6.32	Q4 2015
9/30/2015	0.57%		$61.5M	13.6M			$4.54	Q3 2015
6/30/2015	0.62%		$70.3M	13.6M			$5.19	Q2 2015
3/31/2015	0.47%	+0.06%	$56.5M	13.6M	+1,850,548	+15.8%	$4.17	Q1 2015
12/31/2014	0.75%	-0.02%	$73M	11.7M	-237,451	-1.99%	$6.24	Q4 2014
9/30/2014	0.6%	+0.09%	$47.9M	11.9M	+1,693,587	+16.5%	$4.01	Q3 2014
6/30/2014	0.52%	+0.09%	$42.5M	10.2M	+1,791,285	+21.2%	$4.15	Q2 2014
3/31/2014	0.52%		$40.6M	8.46M			$4.80	Q1 2014
12/31/2013	0.77%		$54.5M	8.46M			$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.