Cerus Ownership | Who Owns Cerus?

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Cerus Ownership Summary

Cerus is owned by 29.27% institutional investors, 3.24% insiders, and 67.48% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 11.32% of CERS shares. ARK Disruptive Innovation Full Composite is the top mutual fund, with 5.18% of its assets in Cerus shares.

CERS Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Cerus	29.27%	3.24%	67.48%
Sector	Healthcare Stocks	35.58%	11.87%	52.55%
Industry	Medical Device Stocks	35.88%	10.92%	53.20%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Blackrock funding, inc. /de	21.58M	11.32%	$39.27M
Ark investment management	19.16M	10.05%	$34.87M
Blackrock	13.89M	7.63%	$24.45M
Vanguard group	11.16M	5.82%	$23.00M
Soleus capital management	10.75M	5.64%	$19.57M
Baker bros. advisors lp	10.01M	5.25%	$18.22M
Wasatch advisors lp	5.28M	2.77%	$9.61M
Geode capital management	4.64M	2.43%	$8.44M
Nikko asset management americas	4.52M	2.37%	$8.22M
Sumitomo mitsui trust	4.52M	2.37%	$8.22M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Soleus capital management	10.75M	0.79%	$19.57M
Silverarc capital management	3.18M	0.59%	$5.78M
Ark investment management	19.16M	0.27%	$34.87M
Senvest management	4.11M	0.25%	$7.49M
Globeflex capital l p	522.10K	0.14%	$950.22K
Nikko asset management americas	4.52M	0.12%	$8.22M
Iq eq fund management (ireland)	780.95K	0.11%	$1.42M
Baker bros. advisors lp	10.01M	0.10%	$18.22M
Round rock advisors	264.97K	0.07%	$482.24K
Wasatch advisors lp	5.28M	0.06%	$9.61M

Top Buyers

Holder	Shares	% Assets	Change
Soleus capital management	10.75M	0.79%	6.75M
Vanguard fiduciary trust	1.30M	0.00%	1.30M
Driehaus capital management	961.61K	0.01%	961.61K
Ark investment management	19.16M	0.27%	960.94K
Ubs group	2.10M	0.00%	956.85K

Top Sellers

Holder	Shares	% Assets	Change
Hood river capital management	-	-	-1.47M
Morgan stanley	825.98K	0.00%	-1.11M
Citadel advisors	-	-	-945.02K
Barclays	270.98K	0.00%	-619.76K
Qube research	149.36K	0.00%	-600.20K

New Positions

Holder	Shares	% Assets	Change	Value
Vanguard fiduciary trust	1.30M	0.00%	1.30M	$2.37M
Driehaus capital management	961.61K	0.01%	961.61K	$1.75M
Atom investors lp	351.21K	0.05%	351.21K	$639.21K
Levin capital strategies	253.08K	0.03%	253.08K	$460.61K
Gsa capital partners llp	117.55K	0.01%	117.55K	$214.00K

Sold Out

Holder	Change
Northwestern mutual wealth management	-2.00
Nelson, van denburg & campbell wealth management group	-31.00
Clearstead advisors	-82.00
Prairieview partners	-100.00
Innealta capital	-105.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Mar 31, 2026	71	-56.17%	55,794,701	-61.91%	29	0.50%	28	-66.67%	25	-50.00%
Dec 31, 2025	104	-33.33%	111,002,366	-21.82%	57	1.05%	53	-36.14%	35	-18.60%
Sep 30, 2025	133	-8.90%	112,405,394	-16.57%	58	1.18%	69	-1.43%	38	-15.56%
Jun 30, 2025	155	-1.90%	146,100,990	-2.79%	76	1.18%	73	4.29%	48	-9.43%
Mar 31, 2025	158	2.60%	150,300,096	1.79%	80	1.27%	70	-12.50%	53	60.61%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
ARK Disruptive Innovation Full Composite	9.95M	5.18%	266.56K
ARK Innovation ETF	9.64M	4.81%	-704.00K
ARK Genomic Revolution ETF	7.45M	3.72%	315.31K
ARK Genomic Revolution	7.03M	3.66%	599.67K
Vanguard US Total Market Shares ETF	5.54M	2.98%	-
Vanguard Total Stock Mkt Idx Inv	5.72M	2.86%	-
Nikko AM ARK Disruptive Innovation A USD	5.28M	2.76%	-49.80K
Wasatch Ultra Growth	5.17M	2.58%	-186.94K
iShares Russell 2000 ETF	4.36M	2.17%	36.71K
Amova ARK Disruptive Innovation A USD	3.81M	1.90%	-182.32K

Recent Insider Transactions

Date	Name	Role	Activity	Value
May 29, 2026	Jayaraman Vivek K	Chief Operating Officer	Sell	$50.00K
May 01, 2026	Jayaraman Vivek K	Chief Operating Officer	Sell	$50.00K
Mar 12, 2025	Jensen Chrystal	Chief Legal Officer	Sell	$187.28K
Mar 12, 2026	Jayaraman Vivek K	Chief Operating Officer	Sell	$273.77K
Mar 12, 2026	Greenman William Mariner	President and CEO	Sell	$742.02K

Insider Transactions Trends

Date	Buy	Sell
2026 Q2	-	2
2026 Q1	-	13
2025 Q4	-	1
2025 Q3	1	-
2025 Q2	-	-

CERS Ownership FAQ

Who Owns Cerus?

Cerus shareholders are primarily institutional investors at 29.27%, followed by 3.24% insiders and 67.49% retail investors. The average institutional ownership in Cerus's industry, Medical Device Stocks, is 35.88%, which Cerus falls below.

Who owns the most shares of Cerus?

Cerus’s largest shareholders are Blackrock funding, inc. /de (21.58M shares, 11.32%), Ark investment management (19.16M shares, 10.05%), and Blackrock (13.89M shares, 7.63%). Together, they hold 29.00% of Cerus’s total shares outstanding.

Does Blackrock own Cerus?

Yes, BlackRock owns 7.63% of Cerus, totaling 13.89M shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 24.45M$. In the last quarter, BlackRock increased its holdings by 255.12K shares, a 1.87% change.

Who is Cerus’s biggest shareholder by percentage of total assets invested?

Soleus capital management is Cerus’s biggest shareholder by percentage of total assets invested, with 0.79% of its assets in 10.75M Cerus shares, valued at 19.57M$.

Who is the top mutual fund holder of Cerus shares?

ARK Disruptive Innovation Full Composite is the top mutual fund holder of Cerus shares, with 5.18% of its total shares outstanding invested in 9.95M Cerus shares.

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