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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
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 $5.72T 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 $240B 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 $871B AUM 31.28% 1-Year Est. Return

HRT Financial's CTKB Position: Q1 2026 in Review

HRT Financial reduced its Cytek Biosciences (CTKB) stake by 5.4% in Q1 2026, selling an estimated $111K and leaving 414,052 shares worth $1.81M. The position accounts for ﹤0.01% of the portfolio, ranked #1681.

HRT Financial first reported a position in CTKB in Q1 2025 and has held it in 4 quarters since. The position peaked at $2.21M in Q4 2025. 165 funds tracked by Wall St. Rank hold CTKB as of Q1 2026.

  • HRT Financial held 414,052 shares of Cytek Biosciences worth $1.81M as of Q1 2026.
  • HRT Financial sold 23,601 Cytek Biosciences shares in Q1 2026, an estimated $111K.
  • Cytek Biosciences made up ﹤0.01% of HRT Financial's portfolio in Q1 2026, its #1681 holding.
  • HRT Financial first reported a position in Cytek Biosciences in Q1 2025 and has held it in 4 quarters since.
  • HRT Financial's Cytek Biosciences position peaked at $2.21M in Q4 2025.
  • 165 funds tracked by Wall St. Rank held Cytek Biosciences as of Q1 2026.

Based on HRT Financial's 13F filing for Q1 2026, filed 14 May 2026.