Question 1

Does ARK Investment Management own CERS stock?

Accepted Answer

Yes. As of its Q2 2026 13F, ARK Investment Management holds 17,932,099 shares of CERS (Cerus), worth $52.4M.

Question 2

How many shares of CERS does ARK Investment Management own?

Accepted Answer

As of its Q2 2026 13F, ARK Investment Management holds 17,932,099 shares of CERS (Cerus).

Question 3

What is ARK Investment Management's CERS position worth?

Accepted Answer

As of its Q2 2026 13F, ARK Investment Management's CERS position is worth $52.4M.

Question 4

Is ARK Investment Management buying or selling CERS?

Accepted Answer

In Q2 2026, ARK Investment Management reduced its CERS position by 1,229,049 shares (-6.4%).

Question 5

When did ARK Investment Management first buy CERS?

Accepted Answer

ARK Investment Management already held CERS in its Q4 2018 13F, the earliest on record, and has listed it in 31 quarterly 13F filings.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Decreased	17.9M	-6.4%	$52.4M	0.3%	$2.92	0
2026-Q1	Increased	19.2M	+5.3%	$34.9M	0.3%	$1.82	36
2025-Q4	Decreased	18.2M	-3.5%	$37.5M	0.2%	$2.06	0
2025-Q3	Decreased	18.9M	-1.9%	$30M	0.2%	$1.59	0
2025-Q2	Decreased	19.2M	-7.0%	$27.1M	0.2%	$1.41	0
2025-Q1	Decreased	20.7M	-0.8%	$28.7M	0.3%	$1.39	0
2024-Q4	Increased	20.8M	+14.2%	$32.1M	0.3%	$1.54	39
2024-Q3	Decreased	18.2M	-8.4%	$31.7M	0.3%	$1.74	0
2024-Q2	Decreased	19.9M	-7.6%	$35M	0.3%	$1.76	0
2024-Q1	Increased	21.5M	+3.0%	$40.7M	0.3%	$1.89	36
2023-Q4	Increased	20.9M	+4.3%	$45.2M	0.3%	$2.16	36
2023-Q3	Decreased	20.1M	-2.9%	$32.5M	0.2%	$1.62	0
2023-Q2	Decreased	20.7M	-6.5%	$50.8M	0.3%	$2.46	0
2023-Q1	Increased	22.1M	+39.3%	$65.6M	0.5%	$2.97	47
2022-Q4	Decreased	15.9M	-5.9%	$57.9M	0.5%	$3.65	0
2022-Q3	Decreased	16.9M	-1.5%	$60.7M	0.4%	$3.60	0
2022-Q2	Increased	17.1M	+5.5%	$84.7M	0.5%	$5.29	44
2022-Q1	Increased	16.2M	+2.9%	$89M	0.4%	$5.49	37
2021-Q4	Decreased	15.8M	-7.8%	$107.3M	0.3%	$6.81	0
2021-Q3	Decreased	17.1M	-18.4%	$104.1M	0.2%	$6.09	0
2021-Q2	Decreased	20.9M	-18.0%	$123.8M	0.2%	$5.91	0
2021-Q1	Decreased	25.5M	-13.6%	$153.5M	0.3%	$6.01	0
2020-Q4	Decreased	29.6M	-1.4%	$204.6M	0.5%	$6.92	0
2020-Q3	Increased	30M	+37.9%	$187.8M	1.1%	$6.26	63
2020-Q2	Increased	21.8M	+55.4%	$143.6M	1.5%	$6.60	67
2020-Q1	Increased	14M	+48.7%	$65.1M	1.6%	$4.65	64
2019-Q4	Increased	9.4M	+8.4%	$39.7M	1.0%	$4.22	50
2019-Q3	Increased	8.7M	+2.2%	$44.8M	1.0%	$5.16	42
2019-Q2	Increased	8.5M	+11.2%	$47.7M	1.2%	$5.62	51
2019-Q1	Increased	7.6M	+13.3%	$47.6M	1.4%	$6.23	52
2018-Q4	First report	6.7M	-	$34.2M	1.4%	$5.07	0

CERS31 quarters

CERS
31 quarters