Group One Trading
CYTK icon

Group One Trading’s Cytokinetics CYTK Stock Holding History

Group One Trading’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 		$24M Sell
363,997
-43,256
-11% -$2.75M 0.05% 405
2025
Q4 		$25.9M Buy
407,253
+219,284
+117% +$13.6M 0.05% 408
2025
Q3 		$10.3M Sell
187,969
-145,313
-44% -$5.99M 0.02% 881
2025
Q2 		$11M Buy
333,282
+128,770
+63% +$4.48M 0.02% 756
2025
Q1 		$8.22M Buy
+204,512
New +$9.4M 0.02% 746
2023
Q4 		– Sell
-14,059
Closed -$509K – 7528
2023
Q3 		$414K Sell
14,059
-2,619
-16% -$87.2K ﹤0.01% 3099
2023
Q2 		$544K Buy
+16,678
New +$617K ﹤0.01% 2928
2023
Q1 		– Sell
-4,977
Closed -$203K – 7329
2022
Q4 		$228K Buy
4,977
+2,823
+131% +$121K ﹤0.01% 3746
2022
Q3 		$104K Buy
+2,154
New +$104K ﹤0.01% 4741
2022
Q2 		– Sell
-10,580
Closed -$426K – 7940
2022
Q1 		$389K Sell
10,580
-73,640
-87% -$2.62M ﹤0.01% 4077
2021
Q4 		$3.84M Buy
+84,220
New +$3.25M ﹤0.01% 1945
2021
Q3 		– Sell
-50,455
Closed -$1.49M – 8263
2021
Q2 		$999K Buy
50,455
+18,378
+57% +$432K ﹤0.01% 3418
2021
Q1 		$746K Buy
32,077
+1,129
+4% +$24.1K ﹤0.01% 3567
2020
Q4 		$643K Buy
30,948
+10,779
+53% +$197K ﹤0.01% 3053
2020
Q3 		$437K Buy
+20,169
New +$472K ﹤0.01% 2961
2019
Q4 		– Sell
-688
Closed -$7.07K – 5183
2019
Q3 		$8K Sell
688
-2,627
-79% -$33K ﹤0.01% 4648
2019
Q2 		$37K Buy
3,315
+1,807
+120% +$17.4K ﹤0.01% 3923
2019
Q1 		$12K Buy
+1,508
New +$11.1K ﹤0.01% 4206
2018
Q4 		– Sell
-37,272
Closed -$273K – 4957
2018
Q3 		$367K Sell
37,272
-19,442
-34% -$156K ﹤0.01% 2541
2018
Q2 		$471K Buy
56,714
+21,664
+62% +$180K ﹤0.01% 2342
2018
Q1 		$252K Buy
35,050
+5,686
+19% +$48.8K ﹤0.01% 2601
2017
Q4 		$239K Sell
29,364
-36,693
-56% -$417K ﹤0.01% 2811
2017
Q3 		$958K Buy
66,057
+38,797
+142% +$530K 0.01% 1597
2017
Q2 		$330K Buy
27,260
+5,447
+25% +$75.7K ﹤0.01% 2274
2017
Q1 		$280K Buy
21,813
+1,003
+5% +$11.7K ﹤0.01% 2276
2016
Q4 		$253K Sell
20,810
-5,861
-22% -$62.2K ﹤0.01% 2262
2016
Q3 		$245K Buy
26,671
+13,637
+105% +$142K ﹤0.01% 2319
2016
Q2 		$124K Buy
+13,034
New +$107K ﹤0.01% 2711
2016
Q1 		– Sell
-24,927
Closed -$182K – 4621
2015
Q4 		$261K Sell
24,927
-816
-3% -$8K ﹤0.01% 2294
2015
Q3 		$172K Sell
25,743
-648
-2% -$4.42K ﹤0.01% 2618
2015
Q2 		$177K Buy
+26,391
New +$173K ﹤0.01% 2617
2015
Q1 		– Sell
-5,710
Closed -$42.6K – 4841
2014
Q4 		$46K Sell
5,710
-138,500
-96% -$594K ﹤0.01% 3421
2014
Q3 		$508K Sell
144,210
-133,321
-48% -$560K 0.01% 1615
2014
Q2 		$1.33M Buy
277,531
+86,263
+45% +$526K 0.02% 953
2014
Q1 		$1.82M Buy
191,268
+169,276
+770% +$1.53M 0.03% 668
2013
Q4 		$143K Buy
+21,992
New +$144K ﹤0.01% 2722

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

Group One Trading's CYTK Position: Q1 2026 in Review

Group One Trading reduced its Cytokinetics (CYTK) stake by 11% in Q1 2026, selling an estimated $2.75M and leaving 363,997 shares worth $24M. The position accounts for 0.05% of the portfolio, ranked #405.

Group One Trading first reported a position in CYTK in Q4 2013 and has held it in 36 quarters since. The position peaked at $25.9M in Q4 2025. 439 funds tracked by Wall St. Rank hold CYTK as of Q1 2026.

  • Group One Trading held 363,997 shares of Cytokinetics worth $24M as of Q1 2026.
  • Group One Trading sold 43,256 Cytokinetics shares in Q1 2026, an estimated $2.75M.
  • Cytokinetics made up 0.05% of Group One Trading's portfolio in Q1 2026, its #405 holding.
  • Group One Trading first reported a position in Cytokinetics in Q4 2013 and has held it in 36 quarters since.
  • Group One Trading's Cytokinetics position peaked at $25.9M in Q4 2025.
  • 439 funds tracked by Wall St. Rank held Cytokinetics as of Q1 2026.

Based on Group One Trading's 13F filing for Q1 2026, filed 13 May 2026.