HF
CTKB icon

HRT Financial’s Cytek Biosciences CTKB Stock Holding History

HRT Financial’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 		$4.42M Buy
997,769
+583,717
+141% +$2.49M 0.01% 1222
2026
Q1 		$1.81M Sell
414,052
-23,601
-5% -$111K ﹤0.01% 1681
2025
Q4 		$2.21M Buy
+437,653
New +$2.03M 0.01% 1238
2025
Q3 		– Sell
-56,620
Closed -$192K – 2985
2025
Q2 		$192K Sell
56,620
-108,685
-66% -$362K ﹤0.01% 2088
2025
Q1 		$662K Buy
+165,305
New +$857K ﹤0.01% 1322

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 $3.38T AUM 44.17% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

HRT Financial's CTKB Position: Q2 2026 in Review

HRT Financial increased its Cytek Biosciences (CTKB) stake by 141% in Q2 2026, buying an estimated $2.49M and bringing the position to 997,769 shares worth $4.42M. The position accounts for 0.01% of the portfolio, ranked #1222.

HRT Financial first reported a position in CTKB in Q1 2025 and has held it in 5 quarters since. 154 funds tracked by Wall St. Rank hold CTKB as of Q2 2026.

  • HRT Financial held 997,769 shares of Cytek Biosciences worth $4.42M as of Q2 2026.
  • HRT Financial bought 583,717 Cytek Biosciences shares in Q2 2026, an estimated $2.49M.
  • Cytek Biosciences made up 0.01% of HRT Financial's portfolio in Q2 2026, its #1222 holding.
  • HRT Financial first reported a position in Cytek Biosciences in Q1 2025 and has held it in 5 quarters since.
  • 154 funds tracked by Wall St. Rank held Cytek Biosciences as of Q2 2026.

Based on HRT Financial's 13F filing for Q2 2026, filed 14 Aug 2026.