Ohio Public Employees Retirement System (OPERS)’s Cytek Biosciences CTKB Stock Holding History

Ohio Public Employees Retirement System (OPERS)’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
2025 Q4	–	Sell	-81,106	Closed	-$281K	–	2324
2025 Q3	$281K	Buy	81,106 +12,200	+18%	+$45.8K	﹤0.01%	1612
2025 Q2	$234K	Buy	68,906 +56,333	+448%	+$188K	﹤0.01%	1625
2025 Q1	$50.4K	Buy	+12,573	New	+$65.2K	﹤0.01%	1901
2024 Q4	–	Sell	-48,520	Closed	-$269K	–	2371
2024 Q3	$269K	Buy	+48,520	New	+$275K	﹤0.01%	1501

Other funds holding CTKB

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

TCM

Topline Capital Management Santa Monica, California $386M AUM 2.37% 1-Year Est. Return

HHLR Advisors Grand Cayman, Cayman Islands $832M AUM 32.38% 1-Year Est. Return

Boston Partners Boston, Massachusetts $113B AUM 38.87% 1-Year Est. Return

Millennium Management New York $276B AUM 44.8% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

BCM

Brown Capital Management Baltimore, Maryland $500M AUM 25.3% 1-Year Est. Return

Ohio Public Employees Retirement System (OPERS)'s CTKB Position: Q4 2025 in Review

Ohio Public Employees Retirement System (OPERS) sold out of Cytek Biosciences (CTKB) in Q4 2025, closing a stake of 81,106 shares — an estimated $281K sold.

Ohio Public Employees Retirement System (OPERS) first reported a position in CTKB in Q3 2024 and held it in 4 quarters. The position peaked at $281K in Q3 2025. 155 funds tracked by Wall St. Rank hold CTKB as of Q4 2025.

Ohio Public Employees Retirement System (OPERS) reported no remaining Cytek Biosciences position as of Q4 2025 after selling out during the quarter.
Ohio Public Employees Retirement System (OPERS) sold 81,106 Cytek Biosciences shares in Q4 2025, an estimated $281K.
Ohio Public Employees Retirement System (OPERS) first reported a position in Cytek Biosciences in Q3 2024 and held it in 4 quarters.
Ohio Public Employees Retirement System (OPERS)'s Cytek Biosciences position peaked at $281K in Q3 2025.
155 funds tracked by Wall St. Rank held Cytek Biosciences as of Q4 2025.

Based on Ohio Public Employees Retirement System (OPERS)'s 13F filing for Q4 2025, filed 17 Feb 2026.