CYTK
Cytokinetics (CYTK)
NASDAQ
$61.23$0.00 (0.00%)
Price as of Oct 23, 2026 7:39 PM EDT
  • $8.5B
    Market Cap
  • 5.88%
    1-Year Change
  • Biotechnology
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
BLACKROCK, INC.
14.45%
20.1M
+3.5M (+17.65%)
Jun 30, 2026
T. ROWE PRICE INVESTMENT MANAGEMENT, INC.
13.46%
18.7M
+1.2M (+6.38%)
Jun 30, 2026
BLACKROCK FUNDING, INC. /DE
11.13%
15.5M
+216,539 (+1.40%)
Dec 31, 2024
BLACKROCK INC.
10.55%
14.7M
+2.3M (+15.39%)
Jun 30, 2024
VANGUARD GROUP INC
8.67%
12.0M
+191,336 (+1.59%)
Dec 31, 2025
WELLINGTON MANAGEMENT GROUP LLP
4.99%
6.9M
-1.1M (-15.55%)
Jun 30, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
4.83%
6.7M
+868,017 (+12.93%)
Jun 30, 2026

Current Ownership Distribution

  • Institutions2.4B (63.66%)
  • Mutual Funds1.3B (35.85%)
  • Insiders18.0M (0.48%)
  • Other0 (0.00%)

Insider Transactions

  • 0.48% (18.0M)
    Current InsiderOwnership (%, shares)
  • 0
    Number of InsiderBuying (last 12 months)
  • $0.00
    Amount of InsiderBuying (last 12 months)
  • 8
    Number of InsiderSelling (last 12 months)
  • $335.9M
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Malik Fady Ibraham
EVP Research & Development
Exempt
Oct 20, 2026
$0.00
3,500
$0.00
16,386
Malik Fady Ibraham
EVP Research & Development
Exempt
Oct 20, 2026
$27,300.00
3,500
$7.80
157,402
Malik Fady Ibraham
EVP Research & Development
Sell
Oct 20, 2026
$224,035.00
3,500
$64.01
153,902
Kaye Edward M. MD
Award
Oct 16, 2026
$12,464.40
195
$63.92
10,629
WIERENGA WENDELL
Award
Oct 16, 2026
$6,200.24
97
$63.92
35,660
Harrington Robert Arthur
Award
Oct 16, 2026
$12,464.40
195
$63.92
22,127
Daly James M
Award
Oct 16, 2026
$12,464.40
195
$63.92
3,585
Wysenski Nancy
Award
Oct 16, 2026
$6,200.24
97
$63.92
34,089
Malik Fady Ibraham
EVP Research & Development
Exempt
Oct 06, 2026
$0.00
3,500
$0.00
19,886
Malik Fady Ibraham
EVP Research & Development
Exempt
Oct 06, 2026
$27,300.00
3,500
$7.80
157,402
Malik Fady Ibraham
EVP Research & Development
Sell
Oct 06, 2026
$214,830.00
3,500
$61.38
153,902
Blum Robert I
President & CEO
Exempt
Sep 28, 2026
$0.00
7,500
$0.00
149,245
Blum Robert I
President & CEO
Exempt
Sep 28, 2026
$79,500.00
7,500
$10.60
286,044
Blum Robert I
President & CEO
Sell
Sep 28, 2026
$490,950.00
7,500
$65.46
278,544
Blum Robert I
President & CEO
Sell
Sep 15, 2026
$6.8M
97,926
$69.33
0
Blum Robert I
President & CEO
Exempt
Sep 14, 2026
$0.00
7,500
$0.00
156,745
Blum Robert I
President & CEO
Exempt
Sep 14, 2026
$79,500.00
7,500
$10.60
385,320
Blum Robert I
President & CEO
Sell
Sep 14, 2026
$550,800.00
7,500
$73.44
377,820
Blum Robert I
President & CEO
Gift
Sep 14, 2026
$0.00
1,350
$0.00
376,470
Blum Robert I
President & CEO
Gift
Sep 14, 2026
$0.00
97,926
$0.00
278,544
Blum Robert I
President & CEO
Gift
Sep 14, 2026
$0.00
97,926
$0.00
97,926
Landry Robert E
Sell
Sep 11, 2026
$74,660.00
1,000
$74.66
9,184
Malik Fady Ibraham
EVP Research & Development
Exempt
Sep 08, 2026
$0.00
3,500
$0.00
26,886
Malik Fady Ibraham
EVP Research & Development
Exempt
Sep 08, 2026
$27,300.00
3,500
$7.80
157,402
Malik Fady Ibraham
EVP Research & Development
Sell
Sep 08, 2026
$264,110.00
3,500
$75.46
153,902
PARSHALL B LYNNE
Sell
Sep 01, 2026
$357,400.00
5,000
$71.48
10,784
Blum Robert I
President & CEO
Exempt
Aug 31, 2026
$0.00
7,500
$0.00
164,245
Callos Andrew
EVP, Chief Commercial Officer
Exempt
Aug 31, 2026
$0.00
10,000
$0.00
0
Blum Robert I
President & CEO
Exempt
Aug 31, 2026
$79,500.00
7,500
$10.60
385,320
Callos Andrew
EVP, Chief Commercial Officer
Exempt
Aug 31, 2026
$232,600.00
10,000
$23.26
68,555