Jim Simons’s Cytokinetics CYTK Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
Sell
-172,067
Closed -$10.9M 3332
2025
Q4
$10.9M Sell
172,067
-117,900
-41% -$7.33M 0.02% 871
2025
Q3
$15.9M Buy
289,967
+279,800
+2,752% +$11.5M 0.02% 845
2025
Q2
$336K Sell
10,167
-110,500
-92% -$3.84M ﹤0.01% 3001
2025
Q1
$4.85M Sell
120,667
-71,500
-37% -$3.29M 0.01% 1453
2024
Q4
$9.04M Sell
192,167
-52,200
-21% -$2.71M 0.01% 1080
2024
Q3
$12.9M Sell
244,367
-226,600
-48% -$12.6M 0.02% 916
2024
Q2
$25.5M Buy
470,967
+105,000
+29% +$6.34M 0.04% 497
2024
Q1
$25.7M Buy
365,967
+330,000
+918% +$25.5M 0.04% 526
2023
Q4
$3M Buy
+35,967
New +$1.3M ﹤0.01% 1691
2023
Q1
Sell
-73,667
Closed -$3.38M 4037
2022
Q4
$3.38M Buy
+73,667
New +$3.17M ﹤0.01% 1742
2021
Q4
Sell
-338,367
Closed -$12.1M 3952
2021
Q3
$12.1M Buy
338,367
+267,600
+378% +$7.88M 0.02% 919
2021
Q2
$1.4M Buy
+70,767
New +$1.66M ﹤0.01% 2488
2020
Q3
Sell
-71,067
Closed -$1.68M 3426
2020
Q2
$1.68M Buy
+71,067
New +$1.33M ﹤0.01% 2269
2020
Q1
Sell
-153,767
Closed -$1.63M 3493
2019
Q4
$1.63M Buy
153,767
+83,467
+119% +$857K ﹤0.01% 2416
2019
Q3
$800K Sell
70,300
-298,000
-81% -$3.74M ﹤0.01% 2681
2019
Q2
$4.14M Buy
368,300
+93,000
+34% +$897K ﹤0.01% 1914
2019
Q1
$2.23M Buy
275,300
+256,100
+1,334% +$1.88M ﹤0.01% 2252
2018
Q4
$121K Buy
+19,200
New +$141K ﹤0.01% 3206
2016
Q2
Sell
-184,479
Closed -$1.3M 3359
2016
Q1
$1.3M Sell
184,479
-334,799
-64% -$2.45M ﹤0.01% 2459
2015
Q4
$5.43M Buy
519,278
+299,578
+136% +$2.94M 0.01% 1417
2015
Q3
$1.47M Buy
219,700
+147,300
+203% +$1.01M ﹤0.01% 2175
2015
Q2
$487K Buy
72,400
+2,933
+4% +$19.2K ﹤0.01% 2728
2015
Q1
$471K Buy
+69,467
New +$519K ﹤0.01% 2617
2014
Q4
Sell
-498,161
Closed -$1.75M 2991
2014
Q3
$1.75M Buy
498,161
+240,624
+93% +$1.01M ﹤0.01% 1745
2014
Q2
$1.23M Buy
257,537
+69,470
+37% +$424K ﹤0.01% 1968
2014
Q1
$1.79M Sell
188,067
-147,200
-44% -$1.33M ﹤0.01% 1827
2013
Q4
$2.18M Buy
+335,267
New +$2.2M 0.01% 1709

Other funds holding CYTK

Jim Simons's CYTK Position: Q1 2026 in Review

Jim Simons sold out of Cytokinetics (CYTK) in Q1 2026, closing a stake of 172,067 shares — an estimated $10.9M sold.

Jim Simons first reported a position in CYTK in Q4 2013 and held it in 27 quarters. The position peaked at $25.7M in Q1 2024. 439 funds tracked by Wall St. Rank hold CYTK as of Q1 2026.

  • Jim Simons reported no remaining Cytokinetics position as of Q1 2026 after selling out during the quarter.
  • Jim Simons sold 172,067 Cytokinetics shares in Q1 2026, an estimated $10.9M.
  • Jim Simons first reported a position in Cytokinetics in Q4 2013 and held it in 27 quarters.
  • Jim Simons's Cytokinetics position peaked at $25.7M in Q1 2024.
  • 439 funds tracked by Wall St. Rank held Cytokinetics as of Q1 2026.

Based on Renaissance Technologies's 13F filing for Q1 2026, filed 14 May 2026.