BlackRock
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BlackRock’s Cytek Biosciences CTKB Stock Holding History

BlackRock’s Portfolio CTKB Stock Details CTKB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$74.3M Sell
17,007,269
-165,759
-1% -$783K ﹤0.01% 2285
2025
Q4 		$86.7M Buy
17,173,028
+625,335
+4% +$2.9M ﹤0.01% 2192
2025
Q3 		$57.4M Sell
16,547,693
-487,842
-3% -$1.83M ﹤0.01% 2419
2025
Q2 		$57.9M Sell
17,035,535
-1,033,747
-6% -$3.44M ﹤0.01% 2361
2025
Q1 		$72.5M Sell
18,069,282
-413,513
-2% -$2.14M ﹤0.01% 2183
2024
Q4 		$120M Sell
18,482,795
-9,496
-0.1% -$56.6K ﹤0.01% 1969
2024
Q3 		$102M Buy
18,492,291
+1,421,869
+8% +$8.06M ﹤0.01% 2073
2024
Q2 		$95.3M Sell
17,070,422
-355,549
-2% -$2.14M ﹤0.01% 2055
2024
Q1 		$117M Sell
17,425,971
-353,782
-2% -$2.8M ﹤0.01% 1966
2023
Q4 		$162M Buy
17,779,753
+1,009,080
+6% +$6.35M ﹤0.01% 1787
2023
Q3 		$92.6M Buy
16,770,673
+1,643,168
+11% +$13.2M ﹤0.01% 2036
2023
Q2 		$129M Buy
15,127,505
+6,840,258
+83% +$61.4M ﹤0.01% 1875
2023
Q1 		$76.2M Sell
8,287,247
-80,360
-1% -$864K ﹤0.01% 2188
2022
Q4 		$85.4M Buy
8,367,607
+449,965
+6% +$6.05M ﹤0.01% 2103
2022
Q3 		$117M Buy
7,917,642
+780,250
+11% +$10.1M ﹤0.01% 1863
2022
Q2 		$76.6M Buy
7,137,392
+1,044,052
+17% +$10.4M ﹤0.01% 2202
2022
Q1 		$65.7M Buy
6,093,340
+3,722,881
+157% +$50.3M ﹤0.01% 2413
2021
Q4 		$38.7M Buy
2,370,459
+515,716
+28% +$10.8M ﹤0.01% 2831
2021
Q3 		$39.7M Buy
+1,854,743
New +$43.6M ﹤0.01% 2812

Other funds holding CTKB

TCM
Topline Capital Management Santa Monica, California $605M AUM 26.24% 1-Year Est. Return
HA
HHLR Advisors Grand Cayman, Cayman Islands $1.67B AUM 7.53% 1-Year Est. Return
Millennium Management
Millennium Management New York $134B AUM 35.51% 1-Year Est. Return
Boston Partners
Boston Partners Boston, Massachusetts $95.5B AUM 28.4% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $761B AUM 31.28% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM