Jane Street
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Jane Street’s Cytokinetics CYTK Stock Holding History

Jane Street’s Portfolio CYTK Stock Details CYTK Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$18.3M Sell
277,000
-563,500
-67% -$35.8M ﹤0.01% 1863
2025
Q4 		$53.4M Buy
840,500
+239,200
+40% +$14.9M 0.01% 897
2025
Q3 		$33M Buy
601,300
+84,800
+16% +$3.49M 0.01% 1214
2025
Q2 		$17.1M Buy
516,500
+351,500
+213% +$12.2M ﹤0.01% 1597
2025
Q1 		$6.63M Buy
165,000
+68,300
+71% +$3.14M ﹤0.01% 2502
2024
Q4 		$4.55M Sell
96,700
-59,700
-38% -$3.1M ﹤0.01% 2797
2024
Q3 		$8.26M Sell
156,400
-11,800
-7% -$658K ﹤0.01% 2140
2024
Q2 		$9.11M Sell
168,200
-270,200
-62% -$16.3M ﹤0.01% 2149
2024
Q1 		$30.7M Sell
438,400
-558,600
-56% -$43.2M 0.01% 895
2023
Q4 		$83.2M Buy
997,000
+838,200
+528% +$30.4M 0.02% 459
2023
Q3 		$4.68M Buy
158,800
+146,500
+1,191% +$4.88M ﹤0.01% 2701
2023
Q2 		$401K Sell
12,300
-131,400
-91% -$4.86M ﹤0.01% 6658
2023
Q1 		$5.06M Sell
143,700
-34,000
-19% -$1.39M ﹤0.01% 2437
2022
Q4 		$8.14M Buy
177,700
+77,400
+77% +$3.33M ﹤0.01% 1849
2022
Q3 		$4.86M Sell
100,300
-326,100
-76% -$15.7M ﹤0.01% 2666
2022
Q2 		$16.8M Buy
426,400
+340,400
+396% +$13.7M 0.01% 1255
2022
Q1 		$3.17M Buy
86,000
+49,800
+138% +$1.77M ﹤0.01% 3835
2021
Q4 		$1.65M Sell
36,200
-95,800
-73% -$3.7M ﹤0.01% 4864
2021
Q3 		$4.72M Buy
132,000
+86,900
+193% +$2.56M ﹤0.01% 2834
2021
Q2 		$893K Sell
45,100
-21,400
-32% -$502K ﹤0.01% 6068
2021
Q1 		$1.55M Buy
66,500
+5,500
+9% +$117K ﹤0.01% 4522
2020
Q4 		$1.27M Buy
61,000
+47,800
+362% +$874K ﹤0.01% 4277
2020
Q3 		$286K Buy
13,200
+4,500
+52% +$105K ﹤0.01% 5937
2020
Q2 		$205K Sell
8,700
-2,200
-20% -$41.3K ﹤0.01% 6348
2020
Q1 		$129K Buy
+10,900
New +$139K ﹤0.01% 4833

Other funds holding CYTK

T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
ACA
Avoro Capital Advisors New York $10.2B AUM 149.19% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return

Jane Street's CYTK Position: Q1 2026 in Review

Jane Street reduced its Cytokinetics (CYTK) stake by 98% in Q1 2026, selling an estimated $17.7M and leaving 6,097 shares worth $402K. The position accounts for ﹤0.01% of the portfolio, ranked #8547.

Jane Street first reported a position in CYTK in Q1 2014 and has held it in 24 quarters since. The position peaked at $30.4M in Q1 2025. 439 funds tracked by Wall St. Rank hold CYTK as of Q1 2026.

  • Jane Street held 6,097 shares of Cytokinetics worth $402K as of Q1 2026.
  • Jane Street sold 278,028 Cytokinetics shares in Q1 2026, an estimated $17.7M.
  • Cytokinetics made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #8547 holding.
  • Jane Street first reported a position in Cytokinetics in Q1 2014 and has held it in 24 quarters since.
  • Jane Street's Cytokinetics position peaked at $30.4M in Q1 2025.
  • 439 funds tracked by Wall St. Rank held Cytokinetics as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.