State of Wisconsin Investment Board
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State of Wisconsin Investment Board’s Cytek Biosciences CTKB Stock Holding History

State of Wisconsin Investment Board’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 		$455K Sell
104,046
-64,517
-38% -$305K ﹤0.01% 2054
2025
Q4 		$851K Sell
168,563
-169,655
-50% -$788K ﹤0.01% 1739
2025
Q3 		$1.17M Buy
338,218
+21,542
+7% +$80.9K ﹤0.01% 1554
2025
Q2 		$1.08M Buy
316,676
+5,351
+2% +$17.8K ﹤0.01% 1542
2025
Q1 		$1.25M Buy
311,325
+51,087
+20% +$265K ﹤0.01% 1412
2024
Q4 		$1.69M Sell
260,238
-12,295
-5% -$73.2K ﹤0.01% 1349
2024
Q3 		$1.51M Sell
272,533
-2,801
-1% -$15.9K ﹤0.01% 1420
2024
Q2 		$1.54M Sell
275,334
-15,474
-5% -$92.9K ﹤0.01% 1408
2024
Q1 		$1.95M Buy
290,808
+10,316
+4% +$81.6K 0.01% 1258
2023
Q4 		$2.56M Buy
280,492
+269,438
+2,437% +$1.7M 0.01% 1180
2023
Q3 		$61K Buy
+11,054
New +$88.7K ﹤0.01% 2410
2022
Q4 		– Sell
-12,568
Closed -$185K – 2533
2022
Q3 		$185K Sell
12,568
-3,623
-22% -$47.1K ﹤0.01% 2420
2022
Q2 		$174K Buy
+16,191
New +$161K ﹤0.01% 2536

Other funds holding CTKB

BlackRock
BlackRock New York $5.7T AUM 30.48% 1-Year Est. Return
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