Bank of America
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Bank of America’s Cytek Biosciences CTKB Stock Holding History

Bank of America’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 		$5.83M Buy
1,315,332
+306,278
+30% +$1.31M ﹤0.01% 3452
2026
Q1 		$4.41M Buy
1,009,054
+152,893
+18% +$722K ﹤0.01% 3572
2025
Q4 		$4.32M Buy
856,161
+686,001
+403% +$3.19M ﹤0.01% 3501
2025
Q3 		$590K Buy
170,160
+78,548
+86% +$295K ﹤0.01% 5684
2025
Q2 		$311K Sell
91,612
-240,509
-72% -$801K ﹤0.01% 5968
2025
Q1 		$1.33M Sell
332,121
-12,839
-4% -$66.5K ﹤0.01% 5017
2024
Q4 		$2.24M Buy
344,960
+138,492
+67% +$825K ﹤0.01% 4352
2024
Q3 		$1.14M Buy
206,468
+4,713
+2% +$26.7K ﹤0.01% 4970
2024
Q2 		$1.13M Buy
201,755
+112,388
+126% +$675K ﹤0.01% 4834
2024
Q1 		$600K Buy
89,367
+54,362
+155% +$430K ﹤0.01% 5241
2023
Q4 		$319K Sell
35,005
-51,627
-60% -$325K ﹤0.01% 5793
2023
Q3 		$478K Buy
86,632
+18,457
+27% +$148K ﹤0.01% 5343
2023
Q2 		$582K Sell
68,175
-114,684
-63% -$1.03M ﹤0.01% 5176
2023
Q1 		$1.68M Sell
182,859
-369,693
-67% -$3.98M ﹤0.01% 4502
2022
Q4 		$5.64M Sell
552,552
-275,913
-33% -$3.71M ﹤0.01% 3279
2022
Q3 		$12.2M Buy
828,465
+802,466
+3,087% +$10.4M ﹤0.01% 2415
2022
Q2 		$279K Sell
25,999
-217,939
-89% -$2.17M ﹤0.01% 5860
2022
Q1 		$2.63M Buy
243,938
+238,217
+4,164% +$3.22M ﹤0.01% 4310
2021
Q4 		$93K Buy
5,721
+5,498
+2,465% +$115K ﹤0.01% 6917
2021
Q3 		$5K Buy
+223
New +$5.25K ﹤0.01% 7728

Other funds holding CTKB

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 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

Bank of America's CTKB Position: Q2 2026 in Review

Bank of America increased its Cytek Biosciences (CTKB) stake by 30% in Q2 2026, buying an estimated $1.31M and bringing the position to 1,315,332 shares worth $5.83M. The position accounts for ﹤0.01% of the portfolio, ranked #3452.

Bank of America first reported a position in CTKB in Q3 2021 and has held it in 20 quarters since. The position peaked at $12.2M in Q3 2022. 155 funds tracked by Wall St. Rank hold CTKB as of Q2 2026.

  • Bank of America held 1,315,332 shares of Cytek Biosciences worth $5.83M as of Q2 2026.
  • Bank of America bought 306,278 Cytek Biosciences shares in Q2 2026, an estimated $1.31M.
  • Cytek Biosciences made up ﹤0.01% of Bank of America's portfolio in Q2 2026, its #3452 holding.
  • Bank of America first reported a position in Cytek Biosciences in Q3 2021 and has held it in 20 quarters since.
  • Bank of America's Cytek Biosciences position peaked at $12.2M in Q3 2022.
  • 155 funds tracked by Wall St. Rank held Cytek Biosciences as of Q2 2026.

Based on Bank of America's 13F filing for Q2 2026, filed 14 Aug 2026.