Cytek Biosciences, Inc. (CTKB) is held by institutional investors who disclose positions via SEC 13F filings. View the full list of institutional holders on HoldingsIntel.

Are institutions buying or selling CTKB?

HoldingsIntel tracks quarter-over-quarter changes in institutional positions for Cytek Biosciences, Inc., showing new buyers, position increases, decreases, and exits with conviction-weighted sentiment.

What is the Smart Money Verdict on CTKB?

The Smart Money Verdict combines four independent signals (institutional 13F activity, insider trades, activist filings, and congressional trades) into a single assessment for Cytek Biosciences, Inc..

Is institutional money flowing into CTKB?

97 institutional investors hold Cytek Biosciences, Inc. (CTKB). View detailed buyer/seller breakdown on HoldingsIntel.

What do hedge funds think about CTKB?

Track institutional sentiment and conviction scores for Cytek Biosciences, Inc. (CTKB) including Smart Money Verdict and position changes on HoldingsIntel.

Cytek Biosciences, Inc.

CTKB·23285D109·US·equity·Healthcare - Medical Devices-13D/G

CTKB (Cytek Biosciences, Inc.) is held by 97 institutional investors as of Q4 2025. Largest holders: BlackRock, Inc. ($86.7M), VANGUARD GROUP INC ($37.8M), HHLR ADVISORS, LTD. ($33.6M). Net institutional sentiment: Mixed.

Holders

Avg rating(11 Elite)

$357.8M

Total Value

42% (109)

Fund Consensus

42 buying - 59 selling

Smart Money VerdictView all

53Mixed MomentumSplit Signals

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See how CTKB's score breaks down across 4 SEC sources

Held by 97 funds

11 elite

Who's Trading

ActivistMillennium Management LLC5.2%Apr 9, 2026

13F: Dec 31, 2025Insider & Congress: Updated regularly

Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
BlackRock, Inc.	Increased	17.2M(+3.8%)	$86.7M	0.0%	-31.64%	31
VANGUARD GROUP INC	Increased	7.5M(+7.8%)	$37.8M	0.0%	-17.24%	31
HHLR ADVISORS, LTD.	Unchanged	6.7M	$33.6M	1.1%	-78.82%	0
Boston Partners	Increased	5M(+134x)	$25.3M	0.0%	-11.69%	46
MILLENNIUM MANAGEMENT LLC	Increased	4.8M(+39.0%)	$24M	0.0%	+6.51%	38
STATE STREET CORP	Increased	4.1M(+1.5%)	$20.9M	0.0%	-48.66%	29
GEODE CAPITAL MANAGEMENT, LLC	Increased	2.8M(+0.3%)	$14.1M	0.0%	-60.23%	28
DIMENSIONAL FUND ADVISORS LP	Decreased	2.6M(-17.7%)	$13.4M	0.0%	-17.29%	0
GOLDMAN SACHS GROUP INC	Increased	1.8M(+3.0%)	$9M	0.0%	-15.09%	28
MORGAN STANLEY	Increased	1.7M(+16.3%)	$8.6M	0.0%	-3.74%	32
ROYCE & ASSOCIATES LP	Decreased	1.7M(-4.0%)	$8.5M	0.1%	+4.71%	0
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	Decreased	1.1M(-0.9%)	$5.5M	0.0%	-53.81%	0
Russell Investments Group, Ltd.	Increased	1M(+527.6%)	$5.1M	0.0%	-7.68%	43
NORTHERN TRUST CORP	Decreased	957,594(-5.5%)	$4.8M	0.0%	-60.62%	0
BANK OF AMERICA CORP /DE/	Increased	856,161(+403.1%)	$4.3M	0.0%	-12.07%	43
M&T BANK CORP	New	42,616	$4.3M	0.0%	-11.90%	37
WELLINGTON MANAGEMENT GROUP LLP	Decreased	764,279(-69.9%)	$3.9M	0.0%	+31.36%	0
AQR CAPITAL MANAGEMENT LLC	Decreased	743,455(-27.1%)	$3.8M	0.0%	+10.16%	0
RENAISSANCE TECHNOLOGIES LLC	Decreased	675,000(-15.2%)	$3.4M	0.0%	-6.68%	0
PRINCIPAL FINANCIAL GROUP INC	Increased	666,927(+7.0%)	$3.4M	0.0%	-36.03%	28
Bank of New York Mellon Corp	Decreased	637,929(-5.3%)	$3.2M	0.0%	-54.78%	0
UBS Group AG	Decreased	460,047(-1.8%)	$2.3M	0.0%	-31.24%	0
Invesco Ltd.	Increased	398,797(+2.5%)	$2M	0.0%	-40.61%	27
PUBLIC SECTOR PENSION INVESTMENT BOARD	Decreased	379,274(-11.1%)	$1.9M	0.0%	-29.99%	0
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	Increased	361,677(+0.1%)	$1.8M	0.0%	+26.51%	26
JPMORGAN CHASE & CO	Decreased	328,853(-8.3%)	$1.7M	0.0%	-32.21%	0
Connor, Clark & Lunn Investment Management Ltd.	Decreased	295,636(-0.8%)	$1.5M	0.0%	-40.08%	0
AMERICAN CENTURY COMPANIES INC	Increased	284,644(+2.8%)	$1.4M	0.0%	-26.43%	26
JACOBS LEVY EQUITY MANAGEMENT, INC	Decreased	264,177(-68.0%)	$1.3M	0.0%	+13.59%	0
D. E. Shaw & Co., Inc.	Increased	263,126(+117.4%)	$1.3M	0.0%	+3.82%	41
Nuveen, LLC	Unchanged	253,808	$1.3M	0.0%	+11.00%	0
RHUMBLINE ADVISERS	Decreased	249,940(-10.8%)	$1.3M	0.0%	-52.65%	0
FMR LLC	Increased	234,072(+29.5%)	$1.2M	0.0%	-27.37%	32
AMERIPRISE FINANCIAL INC	Decreased	202,316(-38.4%)	$1M	0.0%	-31.89%	0
Legal & General Group Plc	Decreased	188,468(-2.0%)	$951,764	0.0%	-43.13%	0
BARCLAYS PLC	Increased	183,239(+10.7%)	$925,357	0.0%	-4.97%	28
STATE OF WISCONSIN INVESTMENT BOARD	Decreased	168,563(-50.2%)	$851,243	0.0%	-42.50%	0
CITADEL ADVISORS LLC	Increased	166,754(+102.6%)	$842,108	0.0%	-6.56%	40
ALLIANCEBERNSTEIN L.P.	Decreased	141,048(-5.8%)	$712,292	0.0%	-50.34%	0
WELLS FARGO & COMPANY/MN	Increased	132,675(+46.8%)	$670,008	0.0%	-18.14%	33
IEQ CAPITAL, LLC	Decreased	123,991(-18.9%)	$626,155	0.0%	+19.86%	0
Creative Planning	Increased	121,209(+11.6%)	$612,105	0.0%	+21.06%	27
Point72 Asset Management, L.P.	Decreased	114,256(-39.1%)	$576,993	0.0%	+31.36%	0
PRUDENTIAL FINANCIAL INC	Decreased	106,857(-5.2%)	$539,628	0.0%	-37.15%	0
BNP PARIBAS FINANCIAL MARKETS	Increased	106,282(+346.3%)	$536,724	0.0%	-11.65%	39
VOYA INVESTMENT MANAGEMENT LLC	Decreased	97,830(-15.7%)	$494,042	0.0%	-7.13%	0
DEUTSCHE BANK AG\	Increased	93,139(+4.6%)	$470,352	0.0%	-41.65%	25
JANE STREET GROUP, LLC	Decreased	78,758(-77.9%)	$397,728	0.0%	+5.17%	0
MetLife Investment Management, LLC	Decreased	57,758(-17.4%)	$291,678	0.0%	-57.43%	0
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	Decreased	54,611(-1.2%)	$275,786	0.0%	-20.22%	0
INTECH INVESTMENT MANAGEMENT LLC	Increased	51,740(+6.7%)	$261,287	0.0%	-17.50%	25
PANAGORA ASSET MANAGEMENT INC	Decreased	51,593(-17.6%)	$260,545	0.0%	-7.34%	0
Cerity Partners LLC	Decreased	49,528(-4.7%)	$250,116	0.0%	+25.14%	0
SUSQUEHANNA INTERNATIONAL GROUP, LLP	Decreased	48,103(-75.1%)	$242,920	0.0%	-4.89%	0
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC	Decreased	35,725(-1.8%)	$201,631	0.0%	+19.37%	0
MANUFACTURERS LIFE INSURANCE COMPANY, THE	Decreased	35,632(-12.5%)	$179,942	0.0%	-57.26%	0
NEW YORK STATE COMMON RETIREMENT FUND	Decreased	34,922(-89.5%)	$176,356	0.0%	-52.03%	0
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM	Unchanged	34,670	$175,084	0.0%	-43.07%	0
XTX Topco Ltd	Decreased	34,565(-52.4%)	$174,553	0.0%	+6.46%	0
Focus Partners Wealth	Decreased	33,497(-52.5%)	$169,160	0.0%	+31.36%	0
TWO SIGMA INVESTMENTS, LP	Decreased	30,032(-82.9%)	$151,662	0.0%	+31.36%	0
Quantinno Capital Management LP	New	29,648	$149,722	0.0%	-11.90%	31
Police & Firemen's Retirement System of New Jersey	Unchanged	29,469	$148,818	0.0%	-32.21%	0
YOUSIF CAPITAL MANAGEMENT, LLC	Decreased	26,610(-3.5%)	$141,299	0.0%	-43.60%	0
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS	Decreased	27,223(-2.3%)	$137,476	0.0%	-37.45%	0
STRS OHIO	Unchanged	26,200	$132,310	0.0%	-17.63%	0
COMERICA BANK	Decreased	23,997(-10.4%)	$121,185	0.0%	-19.32%	0
ProShare Advisors LLC	Increased	22,733(+3.3%)	$114,802	0.0%	-43.37%	23
State of Tennessee, Department of Treasury	Decreased	22,900(-61.1%)	$114,500	0.0%	-5.99%	0
CITIGROUP INC	Decreased	22,163(-55.6%)	$111,923	0.0%	-32.21%	0
MERCER GLOBAL ADVISORS INC /ADV	Decreased	21,726(-0.0%)	$109,717	0.0%	+31.36%	0
LOS ANGELES CAPITAL MANAGEMENT LLC	New	27,420	$104,744	0.0%	-11.90%	30
Mariner, LLC	Decreased	18,565(-31.0%)	$93,679	0.0%	+27.26%	0
VICTORY CAPITAL MANAGEMENT INC	Decreased	17,628(-13.7%)	$89,021	0.0%	-48.66%	0
PNC FINANCIAL SERVICES GROUP, INC.	Decreased	16,337(-5.7%)	$82,502	0.0%	+4.30%	0
CAPTRUST FINANCIAL ADVISORS	Decreased	14,047(-8.1%)	$70,937	0.0%	+26.09%	0
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC	Increased	12,568(+2.5%)	$63,468	0.0%	-43.20%	21
Neuberger Berman Group LLC	New	12,404	$62,640	0.0%	-11.90%	32
Vanguard Personalized Indexing Management, LLC	Increased	12,245(+5.9%)	$61,837	0.0%	+22.19%	22
FRANKLIN RESOURCES INC	Decreased	10,357(-88.1%)	$52,303	0.0%	-13.73%	0
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	Decreased	7,237(-17.8%)	$36,547	0.0%	-59.83%	0
ROYAL BANK OF CANADA	Increased	5,525(+34.0%)	$28,000	0.0%	-24.34%	17
FEDERATED HERMES, INC.	Increased	4,579(+5.3%)	$23,124	0.0%	-12.59%	14
NISA INVESTMENT ADVISORS, LLC	Decreased	3,653(-25.1%)	$18,448	0.0%	+1.13%	0
SIMPLEX TRADING, LLC	Increased	2,003(+192.4%)	$10,115	0.0%	-1.77%	19
GROUP ONE TRADING LLC	New	1,500	$7,575	0.0%	-11.90%	25
Allworth Financial LP	Increased	1,049(+5.2%)	$5,298	0.0%	+26.36%	11
Rockefeller Capital Management L.P.	Increased	1,026(+486.3%)	$5,181	0.0%	-6.66%	17
FIFTH THIRD BANCORP	Increased	912(+6.0%)	$4,606	0.0%	-12.46%	11
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	New	832	$4,202	0.0%	-11.90%	22
US BANCORP \DE\	Unchanged	454	$2,293	0.0%	+15.98%	0
HRT FINANCIAL LP	New	437,653	$2,210	0.0%	-11.90%	16
JONES FINANCIAL COMPANIES LLLP	Unchanged	254	$1,283	0.0%	+25.07%	0
OSAIC HOLDINGS, INC.	Increased	117(+485.0%)	$591	0.0%	-13.49%	12
Farther Finance Advisors, LLC	Unchanged	95	$480	0.0%	-5.25%	0
PRICE T ROWE ASSOCIATES INC /MD/	Increased	69,793(+12.3%)	$353	0.0%	-35.95%	9
CIBC Private Wealth Group LLC	New	26	$131	0.0%	-11.90%	17
CIBC Asset Management Inc	Exited	0(-100.0%)	$38,517	0.0%	-42.96%	0
ExodusPoint Capital Management, LP	Exited	0(-100.0%)	$218,506	0.0%	+41.97%	0
Squarepoint Ops LLC	Exited	0(-100.0%)	$550,484	0.0%	+22.53%	0
CIBC WORLD MARKETS CORP	Exited	0(-100.0%)	$49,256	0.0%	-1.10%	0
TWO SIGMA ADVISERS, LP	Exited	0(-100.0%)	$213,752	0.0%	+49.11%	0
Brevan Howard Capital Management LP	Exited	0(-100.0%)	$164,756	0.0%	+26.00%	0
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO	Exited	0(-100.0%)	$281,438	0.0%	+40.23%	0
Savant Capital, LLC	Exited	0(-100.0%)	$103,070	0.0%	+43.26%	0
MARSHALL WACE, LLP	Exited	0(-100.0%)	$465,975	0.0%	+41.97%	0
TUDOR INVESTMENT CORP ET AL	Exited	0(-100.0%)	$866,848	0.0%	+49.11%	0
HUNTINGTON NATIONAL BANK	Exited	0(-100.0%)	$281	0.0%	+41.97%	0
Optiver Holding B.V.	Exited	0(-100.0%)	$3,595	0.0%	+49.11%	0

Cytek Biosciences, Inc.

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