Two Sigma Investments
CTKB icon

Two Sigma Investments’s Cytek Biosciences CTKB Stock Holding History

Two Sigma Investments’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 		$112K Sell
25,600
-4,432
-15% -$20.9K ﹤0.01% 4374
2025
Q4 		$152K Sell
30,032
-145,727
-83% -$677K ﹤0.01% 3804
2025
Q3 		$610K Buy
+175,759
New +$660K ﹤0.01% 2888
2024
Q2 		– Sell
-13,211
Closed -$88.6K – 3081
2024
Q1 		$88.6K Buy
+13,211
New +$104K ﹤0.01% 2843
2022
Q2 		– Sell
-524,421
Closed -$5.65M – 2584
2022
Q1 		$5.65M Buy
+524,421
New +$7.08M 0.02% 867

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

Two Sigma Investments's CTKB Position: Q1 2026 in Review

Two Sigma Investments reduced its Cytek Biosciences (CTKB) stake by 15% in Q1 2026, selling an estimated $20.9K and leaving 25,600 shares worth $112K. The position accounts for ﹤0.01% of the portfolio, ranked #4374.

Two Sigma Investments first reported a position in CTKB in Q1 2022 and has held it in 5 quarters since. The position peaked at $5.65M in Q1 2022. 165 funds tracked by Wall St. Rank hold CTKB as of Q1 2026.

  • Two Sigma Investments held 25,600 shares of Cytek Biosciences worth $112K as of Q1 2026.
  • Two Sigma Investments sold 4,432 Cytek Biosciences shares in Q1 2026, an estimated $20.9K.
  • Cytek Biosciences made up ﹤0.01% of Two Sigma Investments's portfolio in Q1 2026, its #4374 holding.
  • Two Sigma Investments first reported a position in Cytek Biosciences in Q1 2022 and has held it in 5 quarters since.
  • Two Sigma Investments's Cytek Biosciences position peaked at $5.65M in Q1 2022.
  • 165 funds tracked by Wall St. Rank held Cytek Biosciences as of Q1 2026.

Based on Two Sigma Investments's 13F filing for Q1 2026, filed 15 May 2026.