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Two Sigma Securities’s Cytek Biosciences CTKB Stock Holding History

Two Sigma Securities’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 		$49.5K Buy
+11,180
New +$47.7K ﹤0.01% 1388
2025
Q4 		– Sell
-23,379
Closed -$81.1K – 1568
2025
Q3 		$81.1K Buy
+23,379
New +$87.8K 0.01% 932

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

Two Sigma Securities's CTKB Position: Q2 2026 in Review

Two Sigma Securities opened a new position in Cytek Biosciences (CTKB) in Q2 2026: 11,180 shares worth $49.5K. The stake represents ﹤0.01% of the portfolio and ranks #1388 among its holdings. This is a return to the name: Two Sigma Securities previously reported a position in CTKB as recently as Q3 2025.

Two Sigma Securities first reported a position in CTKB in Q3 2025 and has held it in 2 quarters since. The position peaked at $81.1K in Q3 2025. 154 funds tracked by Wall St. Rank hold CTKB as of Q2 2026.

  • Two Sigma Securities held 11,180 shares of Cytek Biosciences worth $49.5K as of Q2 2026.
  • Cytek Biosciences was a new Two Sigma Securities position in Q2 2026.
  • Cytek Biosciences made up ﹤0.01% of Two Sigma Securities's portfolio in Q2 2026, its #1388 holding.
  • Two Sigma Securities first reported a position in Cytek Biosciences in Q3 2025 and has held it in 2 quarters since.
  • Two Sigma Securities's Cytek Biosciences position peaked at $81.1K in Q3 2025.
  • 154 funds tracked by Wall St. Rank held Cytek Biosciences as of Q2 2026.

Based on Two Sigma Securities's 13F filing for Q2 2026, filed 14 Aug 2026.