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Israel Englander’s Cytek Biosciences CTKB Stock Holding History

Israel Englander’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
Q2 		$41.4M Buy
9,338,010
+3,046,212
+48% +$13M 0.02% 1021
2026
Q1 		$27.5M Buy
6,291,798
+1,539,351
+32% +$7.27M 0.01% 1287
2025
Q4 		$24M Buy
4,752,447
+1,334,065
+39% +$6.19M 0.01% 1403
2025
Q3 		$11.9M Buy
3,418,382
+2,493,610
+270% +$9.36M 0.01% 2204
2025
Q2 		$3.14M Buy
924,772
+429,335
+87% +$1.43M ﹤0.01% 3455
2025
Q1 		$1.99M Sell
495,437
-308,486
-38% -$1.6M ﹤0.01% 3792
2024
Q4 		$5.22M Buy
803,923
+613,314
+322% +$3.65M ﹤0.01% 2783
2024
Q3 		$1.06M Sell
190,609
-755,881
-80% -$4.29M ﹤0.01% 4236
2024
Q2 		$5.28M Buy
946,490
+919,845
+3,452% +$5.52M ﹤0.01% 2674
2024
Q1 		$179K Buy
+26,645
New +$211K ﹤0.01% 5411
2023
Q4 		– Sell
-427,954
Closed -$2.36M – 6156
2023
Q3 		$2.36M Sell
427,954
-152,049
-26% -$1.22M ﹤0.01% 3403
2023
Q2 		$4.95M Sell
580,003
-372,172
-39% -$3.34M ﹤0.01% 2680
2023
Q1 		$8.75M Buy
952,175
+817,445
+607% +$8.79M 0.01% 2097
2022
Q4 		$1.38M Sell
134,730
-273,729
-67% -$3.68M ﹤0.01% 3866
2022
Q3 		$6.01M Sell
408,459
-494,023
-55% -$6.42M ﹤0.01% 2712
2022
Q2 		$9.68M Buy
902,482
+784,708
+666% +$7.81M 0.01% 2075
2022
Q1 		$1.27M Buy
+117,774
New +$1.59M ﹤0.01% 4311
2021
Q4 		– Sell
-178,978
Closed -$3.83M – 6884
2021
Q3 		$3.83M Buy
+178,978
New +$4.21M ﹤0.01% 3186

Other funds holding CTKB

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Boston Partners
Boston Partners Boston, Massachusetts $113B AUM 38.87% 1-Year Est. Return
HA
HHLR Advisors Grand Cayman, Cayman Islands $832M AUM 32.38% 1-Year Est. Return
TCM
Topline Capital Management Santa Monica, California $386M AUM 2.37% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
RA
Royce & Associates New York $12.4B AUM 64.17% 1-Year Est. Return

Israel Englander's CTKB Position: Q2 2026 in Review

Israel Englander increased its Cytek Biosciences (CTKB) stake by 48% in Q2 2026, buying an estimated $13M and bringing the position to 9,338,010 shares worth $41.4M. The position accounts for 0.02% of the portfolio, ranked #1021.

Israel Englander first reported a position in CTKB in Q3 2021 and has held it in 18 quarters since. 155 funds tracked by Wall St. Rank hold CTKB as of Q2 2026.

  • Israel Englander held 9,338,010 shares of Cytek Biosciences worth $41.4M as of Q2 2026.
  • Israel Englander bought 3,046,212 Cytek Biosciences shares in Q2 2026, an estimated $13M.
  • Cytek Biosciences made up 0.02% of Israel Englander's portfolio in Q2 2026, its #1021 holding.
  • Israel Englander first reported a position in Cytek Biosciences in Q3 2021 and has held it in 18 quarters since.
  • 155 funds tracked by Wall St. Rank held Cytek Biosciences as of Q2 2026.

Based on Millennium Management's 13F filing for Q2 2026, filed 14 Aug 2026.