Cytek Biosciences Ownership | Who Owns Cytek Biosciences?

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Cytek Biosciences Ownership Summary

Cytek Biosciences is owned by 62.47% institutional investors, 9.24% insiders, and 28.29% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 13.42% of CTKB shares. iShares Core S&P Small-Cap ETF is the top mutual fund, with 4.83% of its assets in Cytek Biosciences shares.

CTKB Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Cytek Biosciences	62.47%	9.24%	28.29%
Sector	Healthcare Stocks	487.91%	11.08%	-398.99%
Industry	Medical Device Stocks	52.25%	10.55%	37.19%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Blackrock funding, inc. /de	17.04M	13.42%	$57.92M
Blackrock	17.07M	13.04%	$95.25M
Vanguard group	11.72M	8.94%	$76.04M
Brown capital management	7.11M	5.60%	$24.17M
Hhlr advisors	6.66M	5.24%	$22.63M
Topline capital management	5.23M	4.12%	$17.79M
State street	4.51M	3.44%	$29.27M
Geode capital management	2.64M	2.01%	$17.13M
New york state common retirement fund	2.09M	1.59%	$13.55M
Dimensional fund advisors lp	1.83M	1.40%	$11.88M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Topline capital management	5.23M	3.05%	$17.79M
Hhlr advisors	6.66M	0.73%	$22.63M
Brown capital management	7.11M	0.70%	$24.17M
Numerai gp	422.32K	0.21%	$1.44M
Globeflex capital l p	290.51K	0.08%	$987.74K
Entrypoint capital	47.75K	0.08%	$162.34K
Royce & associates lp	1.39M	0.05%	$4.73M
State of wyoming	39.77K	0.03%	$258.12K
Algert global	372.24K	0.03%	$1.27M
Dynamic technology lab private	45.71K	0.02%	$155.00K

Top Buyers

Holder	Shares	% Assets	Change
Topline capital management	5.23M	3.05%	3.76M
Royce & associates lp	1.39M	0.05%	823.99K
Ubs group	665.73K	0.00%	646.79K
Millennium management	803.92K	0.00%	613.31K
Numerai gp	422.32K	0.21%	422.32K

Top Sellers

Holder	Shares	% Assets	Change
Ra capital management	-	-	-6.81M
Wellington management group llp	-	-	-1.52M
Blackrock funding, inc. /de	17.04M	0.00%	-1.03M
Centerbook partners lp	-	-	-845.40K
Fil	-	-	-573.60K

New Positions

Holder	Shares	% Assets	Change	Value
Numerai gp	422.32K	0.21%	422.32K	$1.44M
Marshall wace, llp	261.35K	0.00%	261.35K	$888.60K
Bnp paribas arbitrage, snc	208.66K	0.00%	208.66K	$1.35M
Panagora asset management	127.00K	0.00%	127.00K	$824.22K
Cubist systematic strategies	116.62K	0.00%	116.62K	$756.89K

Sold Out

Holder	Change
Capital performance advisors llp	-12.00
Mendota financial group	-13.00
Advisor group	-20.00
Nelson, van denburg & campbell wealth management group	-24.00
Huntington national bank	-36.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Jun 30, 2025	152	-4.40%	79,296,479	2.36%	62	1.71%	87	11.54%	45	-29.69%
Mar 31, 2025	159	5.30%	77,459,597	0.29%	60	1.74%	80	-11.11%	63	53.66%
Dec 31, 2024	150	11.11%	77,235,970	3.02%	58	1.80%	89	3.49%	40	29.03%
Sep 30, 2024	135	5.47%	74,969,791	-1.57%	57	1.70%	86	13.16%	31	-22.50%
Jun 30, 2024	126	3.28%	76,150,225	-5.51%	58	1.64%	75	17.19%	40	14.29%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
iShares Core S&P Small-Cap ETF	6.14M	4.83%	-
Vanguard Total Stock Mkt Idx Inv	3.42M	2.69%	-75.87K
iShares Russell 2000 ETF	2.83M	2.22%	-
Brown Capital Mgmt Small Co Inv	2.08M	1.63%	-352.00K
Vanguard Small Cap Index	1.37M	1.08%	5.04K
Fidelity Small Cap Index	1.18M	0.93%	-22.17K
Vanguard Institutional Extnd Mkt Idx Tr	1.13M	0.89%	-492.30K
iShares Russell 2000 Value ETF	1.05M	0.82%	-
iShares S&P Small-Cap 600 Value ETF	957.64K	0.75%	-
SPDR® Portfolio S&P 600™ Sm Cap ETF	907.08K	0.71%	10.89K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Jun 02, 2025	McCombe William D.	Chief Financial Officer	Buy	$97.30K

Insider Transactions Trends

Date	Buy	Sell
2025 Q3	-	-
2025 Q2	1	-
2025 Q1	-	-
2024 Q4	-	-
2024 Q3	-	-

CTKB Ownership FAQ

Who Owns Cytek Biosciences?

Cytek Biosciences shareholders are primarily institutional investors at 62.47%, followed by 9.24% insiders and 28.29% retail investors. The average institutional ownership in Cytek Biosciences's industry, Medical Device Stocks, is 52.25%, which Cytek Biosciences exceeds.

Who owns the most shares of Cytek Biosciences?

Cytek Biosciences’s largest shareholders are Blackrock funding, inc. /de (17.04M shares, 13.42%), Blackrock (17.07M shares, 13.04%), and Vanguard group (11.72M shares, 8.94%). Together, they hold 35.40% of Cytek Biosciences’s total shares outstanding.

Does Blackrock own Cytek Biosciences?

Yes, BlackRock owns 13.04% of Cytek Biosciences, totaling 17.07M shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 95.25M$. In the last quarter, BlackRock decreased its holdings by -356K shares, a -2.04% change.

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

Topline capital management is Cytek Biosciences’s biggest shareholder by percentage of total assets invested, with 3.05% of its assets in 5.23M Cytek Biosciences shares, valued at 17.79M$.

Who is the top mutual fund holder of Cytek Biosciences shares?

iShares Core S&P Small-Cap ETF is the top mutual fund holder of Cytek Biosciences shares, with 4.83% of its total shares outstanding invested in 6.14M Cytek Biosciences shares.

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