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 Q2	$745K	Buy	168,218 +142,618	+557%	+$609K	﹤0.01%	3849
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 New York $6.73T AUM 46.02% 1-Year Est. Return

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

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

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 Malvern, Pennsylvania $4.68T AUM

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

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

Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

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

Two Sigma Investments increased its Cytek Biosciences (CTKB) stake by 557% in Q2 2026, buying an estimated $609K and bringing the position to 168,218 shares worth $745K. The position accounts for ﹤0.01% of the portfolio, ranked #3849.

Two Sigma Investments first reported a position in CTKB in Q1 2022 and has held it in 6 quarters since. The position peaked at $5.65M in Q1 2022. 155 funds tracked by Wall St. Rank hold CTKB as of Q2 2026.

Two Sigma Investments held 168,218 shares of Cytek Biosciences worth $745K as of Q2 2026.
Two Sigma Investments bought 142,618 Cytek Biosciences shares in Q2 2026, an estimated $609K.
Cytek Biosciences made up ﹤0.01% of Two Sigma Investments's portfolio in Q2 2026, its #3849 holding.
Two Sigma Investments first reported a position in Cytek Biosciences in Q1 2022 and has held it in 6 quarters since.
Two Sigma Investments's Cytek Biosciences position peaked at $5.65M in Q1 2022.
155 funds tracked by Wall St. Rank held Cytek Biosciences as of Q2 2026.

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