Cytokinetics Inc (CYTK) Insider Ownership

Historic Insider Ownership Trends

Cytokinetics's three largest insider shareholders as of March 23, 2026 are Robert I Blum (President Ceo, 391.67K shares), David Cragg (Chief Hr Admin Officer, 153.23K shares), Fady Ibraham Malik (Evp Research Development, 138.63K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Robert I Blum President Ceo 430,330 0 18 Mar, 2026
Fady Ibraham Malik Evp Research Development 153,902 0 18 Mar, 2026
David Cragg Chief Hr Admin Officer 153,233 0 08 Mar, 2022
Jeffrey Hessekiel Chief Legal Admin Officer 107,943 0 17 Mar, 2026
Mark A Schlossberg Svp Legal General Counsel 103,408 0 15 Mar, 2022
Ching Jaw Svp Finance Cfo 87,346 0 07 Mar, 2023
Sung Lee Evp, Chief Financial Officer 87,127 0 18 Mar, 2026
Andrew Callos Evp, Chief Commercial Officer 78,185 0 18 Mar, 2026
John T Henderson 74,912 0 16 Jan, 2026
Brett A Pletcher Evp, Chief Legal Officer 33,140 0 03 Sep, 2024
Wendell Wierenga 32,542 0 16 Jan, 2026
Wendall Wierenga 32,345 0 16 Jul, 2025
Nancy Wysenski 30,971 0 16 Jan, 2026
L Patrick Gage 28,932 0 08 Nov, 2021
Sandford D Smith 18,801 0 03 Jan, 2024
Robert Arthur Harrington 18,739 0 16 Jan, 2026
Robert Wong Vp, Chief Accounting Officer 18,655 0 05 Dec, 2024
B Lynne Parshall 17,933 0 02 Mar, 2026
Edward M. Md Kaye 10,174 0 16 Jan, 2026
Robert E Landry 7,333 0 14 May, 2025
Robert Califf 6,003 0 04 Jan, 2022
James M Daly 197 0 20 Jan, 2026

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
17 Mar, 2026 Andrew Callos Common Stock D 5,626 $62.15 74,489 D S
18 Mar, 2026 Andrew Callos Common Stock D 1,930 $62.07 78,185 D S
17 Mar, 2026 Robert I Blum Common Stock D 12,673 $62.15 454,258 D S
17 Mar, 2026 Sung Lee Common Stock D 4,935 $62.15 87,127 D S
17 Mar, 2026 Fady Ibraham Malik Common Stock D 7,636 $62.15 158,299 D S
17 Mar, 2026 Andrew Callos Common Stock D 2,916 $62.15 71,573 D S
17 Mar, 2026 Robert I Blum Common Stock D 23,928 $62.15 430,330 D S
17 Mar, 2026 Fady Ibraham Malik Common Stock D 4,397 $62.15 153,902 D S
15 Mar, 2026 Sung Lee Common Stock A 20,646 $0.00 92,062 D A
15 Mar, 2026 Andrew Callos Common Stock A 20,646 $0.00 68,504 D A
15 Mar, 2026 Fady Ibraham Malik Common Stock A 27,306 $0.00 165,935 D A
15 Mar, 2026 Jeffrey Hessekiel Common Stock A 20,646 $0.00 107,943 D A
15 Mar, 2026 Robert I Blum Common Stock A 75,258 $0.00 466,931 D A
15 Mar, 2026 Sung Lee Incentive Stock Option (Right to Buy) A 1,665 $0.00 1,665 D A
15 Mar, 2026 Jeffrey Hessekiel Incentive Stock Option (Right to Buy) A 8,325 $0.00 8,325 D A
15 Mar, 2026 Andrew Callos Common Stock A 13,320 $0.00 81,824 D A
15 Mar, 2026 Fady Ibraham Malik Incentive Stock Option (Right to Buy) A 1,665 $0.00 1,665 D A
15 Mar, 2026 Fady Ibraham Malik Non-Qualified Stock Option (Right to Buy) A 39,527 $0.00 39,527 D A
15 Mar, 2026 Sung Lee Non-Qualified Stock Option (Right to Buy) A 29,480 $0.00 29,480 D A
15 Mar, 2026 Andrew Callos Incentive Stock Option (Right to Buy) A 1,665 $0.00 1,665 D A