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CenterBook Partners’s Cytek Biosciences CTKB Stock Holding History

CenterBook Partners’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 		$3.19M Buy
+729,874
New +$3.45M 0.17% 160
2025
Q2 		– Sell
-845,405
Closed -$3.39M – 528
2025
Q1 		$3.39M Buy
+845,405
New +$4.38M 0.22% 130

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

CenterBook Partners's CTKB Position: Q1 2026 in Review

CenterBook Partners opened a new position in Cytek Biosciences (CTKB) in Q1 2026: 729,874 shares worth $3.19M. The stake represents 0.17% of the portfolio and ranks #160 among its holdings. This is a return to the name: CenterBook Partners previously reported a position in CTKB as recently as Q1 2025.

CenterBook Partners first reported a position in CTKB in Q1 2025 and has held it in 2 quarters since. The position peaked at $3.39M in Q1 2025. 165 funds tracked by Wall St. Rank hold CTKB as of Q1 2026.

  • CenterBook Partners held 729,874 shares of Cytek Biosciences worth $3.19M as of Q1 2026.
  • Cytek Biosciences was a new CenterBook Partners position in Q1 2026.
  • Cytek Biosciences made up 0.17% of CenterBook Partners's portfolio in Q1 2026, its #160 holding.
  • CenterBook Partners first reported a position in Cytek Biosciences in Q1 2025 and has held it in 2 quarters since.
  • CenterBook Partners's Cytek Biosciences position peaked at $3.39M in Q1 2025.
  • 165 funds tracked by Wall St. Rank held Cytek Biosciences as of Q1 2026.

Based on CenterBook Partners's 13F filing for Q1 2026, filed 5 May 2026.