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Cytokinetics Inc

CYTK
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001061983

In the last 90 days, Cytokinetics Inc insiders filed 0 open-market purchases and 19 sales; 481 institutions reported holding it in 13F filings for Q2 2026, worth $13.7B in total; no superinvestor holds it.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by Cytokinetics Inc insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
19 filings
6 insiders, $15.9M in total
Insiders trading
6
Net value
−$15.9M
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for Cytokinetics Inc, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for Cytokinetics Inc
NameTitleLast reported holdingLast filingFilings, past year
Blum Robert IPresident & CEO278,544Sep 28, 202623
Malik Fady IbrahamEVP Research & Development153,902Sep 22, 202622
Landry Robert EDirector8,184Sep 15, 20263
Parshall B LynneDirector10,784Sep 1, 20265
Callos AndrewEVP, Chief Commercial Officer58,555Aug 31, 202625
Wysenski NancyDirector33,992Jul 16, 20265
Wierenga WendellDirector35,563Jul 16, 20268
Kaye Edward M. MDDirector10,434Jul 16, 202610
Henderson John TDirector78,360Jul 16, 20267
Harrington Robert ArthurDirector21,932Jul 16, 20266
Daly James MDirector3,390Jul 16, 20264
Lee SungEVP, Chief Financial Officer63,221Jul 2, 20268
Bhanji MunaDirector26,361May 27, 20261
Hessekiel JeffreyChief Legal & Admin Officer107,943Mar 17, 20262
Wierenga WendallDirector32,345Jul 16, 20250
Wong RobertVP, Chief Accounting Officer18,655Dec 5, 20240
Pletcher Brett AEVP, Chief Legal Officer33,140Sep 3, 20240
Costa Santo JDirector20,600May 16, 20240
Smith Sandford DDirector18,801Jan 3, 20240
Jaw ChingSVP Finance & CFO87,346Mar 7, 20230
Schlossberg Mark ASVP - Legal & General Counsel103,408Mar 15, 20220
Cragg DavidChief HR & Admin Officer153,233Mar 8, 20220
Califf RobertDirector6,003Jan 4, 20220
Gage L PatrickDirector28,932Nov 8, 20210

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Mar 16, 2026 (view filing)Mar 16Same dayCallos AndrewEVP, Chief Commercial OfficerSSale−1.71K$61.03−$104.3K−3.6%46.1K after10b5-1
Mar 10, 2026 (view filing)Mar 91 dayCallos AndrewEVP, Chief Commercial OfficerSSale−2.58K$60.72−$156.8K−5.1%47.9K after
Mar 10, 2026 (view filing)Mar 91 dayMalik Fady IbrahamEVP Research & DevelopmentSSale−2.91K$60.72−$176.5K−2.1%138.6K after
Mar 10, 2026 (view filing)Mar 91 dayBlum Robert IPresident & CEOSSale−7.93K$60.72−$481.6K−2.0%391.7K after
Mar 5, 2026 (view filing)Mar 5Same dayCallos AndrewEVP, Chief Commercial OfficerSSale−26.0K$61.87−$1.61M−34.0%50.4K after2 lots10b5-1
Mar 2, 2026 (view filing)Mar 2Same dayParshall B LynneDirectorSSale−5.00K$61.21−$306.1K−21.8%17.9K after10b5-1
Mar 2, 2026 (view filing)Mar 2Same dayCallos AndrewEVP, Chief Commercial OfficerSSale−886$61.62−$54.6K−1.7%50.4K after10b5-1
Feb 5, 2026 (view filing)Feb 5Same dayCallos AndrewEVP, Chief Commercial OfficerSSale−15.0K$61.93−$929.0K−22.9%50.4K after10b5-1
Feb 2, 2026 (view filing)Feb 2Same dayCallos AndrewEVP, Chief Commercial OfficerSSale−886$62.10−$55.0K−1.7%50.4K after10b5-1
Jan 5, 2026 (view filing)Jan 5Same dayCallos AndrewEVP, Chief Commercial OfficerSSale−15.0K$60.28−$904.2K−22.9%50.4K after10b5-1
Jan 2, 2026 (view filing)Jan 2Same dayCallos AndrewEVP, Chief Commercial OfficerSSale−1.80K$62.62−$112.6K−3.4%50.4K after2 lots10b5-1
Dec 30, 2025 (view filing)Dec 291 dayCallos AndrewEVP, Chief Commercial OfficerSSale−1.81K$62.44−$113.0K−3.4%51.4K after10b5-1
Dec 23, 2025 (view filing)Dec 221 dayWierenga WendellDirectorSSale−20.0K$66.14−$1.32M−38.1%32.4K after10b5-1
Dec 16, 2025 (view filing)Dec 16Same dayMalik Fady IbrahamEVP Research & DevelopmentSSale−2.20K$61.24−$134.7K−1.6%138.6K after10b5-1
Dec 8, 2025 (view filing)Dec 8Same dayCallos AndrewEVP, Chief Commercial OfficerSSale−1.04K$65.96−$68.7K−2.0%50.7K after10b5-1
Dec 5, 2025 (view filing)Dec 5Same dayCallos AndrewEVP, Chief Commercial OfficerSSale−52.5K$65.95−$3.46M−50.9%50.7K after10b5-1
Dec 2, 2025 (view filing)Dec 2Same dayHenderson John TDirectorSSale−8.75K$63.90−$559.1K−10.5%74.6K after10b5-1
Dec 2, 2025 (view filing)Dec 2Same dayMalik Fady IbrahamEVP Research & DevelopmentSSale−2.20K$63.89−$140.6K−1.5%140.6K after10b5-1
Dec 2, 2025 (view filing)Dec 11 dayKaye Edward M. MDDirectorSSale−28.1K$66.72−$1.87M−73.8%9.98K after10b5-1
Dec 2, 2025 (view filing)Dec 11 dayHarrington Robert ArthurDirectorSSale−2.15K$66.80−$143.6K−10.4%18.5K after10b5-1
Nov 19, 2025 (view filing)Nov 19Same dayParshall B LynneDirectorSSale−5.00K$64.73−$323.6K−17.9%22.9K after10b5-1
Nov 18, 2025 (view filing)Nov 18Same dayMalik Fady IbrahamEVP Research & DevelopmentSSale−2.20K$66.45−$146.2K−1.5%140.6K after10b5-1
Nov 12, 2025 (view filing)Nov 111 dayKaye Edward M. MDDirectorSSale−5.17K$65.08−$336.8K−34.2%9.98K after10b5-1
Nov 4, 2025 (view filing)Nov 4Same dayMalik Fady IbrahamEVP Research & DevelopmentSSale−2.29K$59.55−$136.7K−1.6%140.6K after10b5-1
Oct 30, 2025 (view filing)Oct 30Same dayBlum Robert IPresident & CEOSSale−5.00K$62.86−$314.3K−1.4%358.1K after10b5-1
Oct 27, 2025 (view filing)Oct 27Same dayWierenga WendellDirectorSSale−4.38K$58.68−$256.7K−11.9%32.4K after10b5-1
Oct 21, 2025 (view filing)Oct 21Same dayMalik Fady IbrahamEVP Research & DevelopmentSSale−2.10K$58.22−$122.6K−1.5%140.6K after10b5-1
Oct 16, 2025 (view filing)Oct 16Same dayBlum Robert IPresident & CEOSSale−5.00K$60.03−$300.1K−1.4%363.1K after10b5-1
Oct 7, 2025 (view filing)Oct 7Same dayMalik Fady IbrahamEVP Research & DevelopmentSSale−2.00K$60.56−$121.1K−1.4%140.6K after10b5-1
Oct 6, 2025 (view filing)Oct 6Same dayKaye Edward M. MDDirectorSSale−6.76K$60.00−$405.4K−40.9%9.78K after10b5-1
Oct 1, 2025 (view filing)Oct 1Same dayBlum Robert IPresident & CEOSSale−5.00K$55.05−$275.3K−1.3%368.1K after10b5-1
Sep 30, 2025 (view filing)Sep 30Same dayKaye Edward M. MDDirectorSSale−6.70K$55.08−$368.8K−28.8%16.5K after10b5-1
Sep 23, 2025 (view filing)Sep 23Same dayMalik Fady IbrahamEVP Research & DevelopmentSSale−2.00K$49.28−$98.6K−1.4%140.6K after10b5-1
Sep 15, 2025 (view filing)Sep 15Same dayBlum Robert IPresident & CEOSSale−5.00K$49.77−$248.8K−1.3%373.1K after10b5-1
Sep 10, 2025 (view filing)Sep 91 dayMalik Fady IbrahamEVP Research & DevelopmentSSale−2.00K$51.29−$102.6K−1.4%140.6K after10b5-1
Sep 2, 2025 (view filing)Sep 2Same dayKaye Edward M. MDDirectorSSale−6.76K$50.00−$337.8K−22.5%23.2K after10b5-1
Sep 2, 2025 (view filing)Sep 2Same dayHarrington Robert ArthurDirectorSSale−2.15K$48.67−$104.6K−9.5%20.5K after10b5-1
Sep 2, 2025 (view filing)Sep 2Same dayBlum Robert IPresident & CEOSSale−5.00K$48.76−$243.8K−1.3%378.1K after10b5-1
Aug 19, 2025 (view filing)Aug 19Same dayMalik Fady IbrahamEVP Research & DevelopmentSSale−2.00K$38.31−$76.6K−1.4%140.6K after10b5-1
Aug 15, 2025 (view filing)Aug 15Same dayBlum Robert IPresident & CEOSSale−5.00K$38.42−$192.1K−1.3%383.1K after10b5-1
Aug 5, 2025 (view filing)Aug 5Same dayMalik Fady IbrahamEVP Research & DevelopmentSSale−2.00K$36.34−$72.7K−1.4%140.6K after10b5-1
Jul 31, 2025 (view filing)Jul 292 daysBlum Robert IPresident & CEOSSale−5.00K$36.45−$182.3K−1.3%388.1K after10b5-1
Jul 23, 2025 (view filing)Jul 221 dayMalik Fady IbrahamEVP Research & DevelopmentSSale−2.00K$37.47−$74.9K−1.4%140.6K after10b5-1
Jul 15, 2025 (view filing)Jul 141 dayBlum Robert IPresident & CEOSSale−5.00K$38.15−$190.8K−1.3%393.1K after10b5-1
Jul 8, 2025 (view filing)Jul 8Same dayMalik Fady IbrahamEVP Research & DevelopmentSSale−2.00K$33.76−$67.5K−1.4%140.6K after10b5-1
Jul 2, 2025 (view filing)Jul 11 dayBlum Robert IPresident & CEOSSale−5.00K$33.55−$167.8K−1.2%398.1K after10b5-1
Jun 17, 2025 (view filing)Jun 17Same dayMalik Fady IbrahamEVP Research & DevelopmentSSale−2.00K$32.91−$65.8K−1.4%140.6K after10b5-1
Jun 16, 2025 (view filing)Jun 16Same dayBlum Robert IPresident & CEOSSale−5.00K$33.80−$169.0K−1.2%403.1K after10b5-1
Jun 5, 2025 (view filing)Jun 5Same dayKaye Edward M. MDDirectorSSale−3.64K$32.10−$116.7K−10.9%29.7K after10b5-1
Jun 5, 2025 (view filing)Jun 5Same dayCallos AndrewEVP, Chief Commercial OfficerSSale−8.66K$32.04−$277.4K−14.3%52.0K after10b5-1