ProShare Advisors
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ProShare Advisors’s Cytek Biosciences CTKB Stock Holding History

ProShare Advisors’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 		$79.6K Sell
18,216
-4,517
-20% -$21.3K ﹤0.01% 1737
2025
Q4 		$115K Buy
22,733
+729
+3% +$3.38K ﹤0.01% 1847
2025
Q3 		$76.4K Sell
22,004
-3,966
-15% -$14.9K ﹤0.01% 1878
2025
Q2 		$88.3K Sell
25,970
-1,797
-6% -$5.99K ﹤0.01% 1898
2025
Q1 		$111K Sell
27,767
-8,474
-23% -$43.9K ﹤0.01% 1814
2024
Q4 		$235K Buy
36,241
+11,213
+45% +$66.8K ﹤0.01% 1803
2024
Q3 		$139K Buy
25,028
+6,881
+38% +$39K ﹤0.01% 1822
2024
Q2 		$101K Sell
18,147
-5,794
-24% -$34.8K ﹤0.01% 1663
2024
Q1 		$161K Buy
23,941
+1,687
+8% +$13.3K ﹤0.01% 1726
2023
Q4 		$203K Buy
22,254
+4,292
+24% +$27K ﹤0.01% 1633
2023
Q3 		$99.2K Buy
17,962
+109
+0.6% +$874 ﹤0.01% 1633
2023
Q2 		$152K Buy
17,853
+4,414
+33% +$39.6K ﹤0.01% 1605
2023
Q1 		$124K Sell
13,439
-1,254
-9% -$13.5K ﹤0.01% 1555
2022
Q4 		$150K Buy
14,693
+2,106
+17% +$28.3K ﹤0.01% 1561
2022
Q3 		$185K Sell
12,587
-240
-2% -$3.12K ﹤0.01% 1426
2022
Q2 		$138K Sell
12,827
-5,479
-30% -$54.5K ﹤0.01% 1551
2022
Q1 		$197K Buy
+18,306
New +$247K ﹤0.01% 1894

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

ProShare Advisors's CTKB Position: Q1 2026 in Review

ProShare Advisors reduced its Cytek Biosciences (CTKB) stake by 20% in Q1 2026, selling an estimated $21.3K and leaving 18,216 shares worth $79.6K. The position accounts for ﹤0.01% of the portfolio, ranked #1737.

ProShare Advisors first reported a position in CTKB in Q1 2022 and has held it in 17 quarters since. The position peaked at $235K in Q4 2024. 165 funds tracked by Wall St. Rank hold CTKB as of Q1 2026.

  • ProShare Advisors held 18,216 shares of Cytek Biosciences worth $79.6K as of Q1 2026.
  • ProShare Advisors sold 4,517 Cytek Biosciences shares in Q1 2026, an estimated $21.3K.
  • Cytek Biosciences made up ﹤0.01% of ProShare Advisors's portfolio in Q1 2026, its #1737 holding.
  • ProShare Advisors first reported a position in Cytek Biosciences in Q1 2022 and has held it in 17 quarters since.
  • ProShare Advisors's Cytek Biosciences position peaked at $235K in Q4 2024.
  • 165 funds tracked by Wall St. Rank held Cytek Biosciences as of Q1 2026.

Based on ProShare Advisors's 13F filing for Q1 2026, filed 27 Apr 2026.