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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 20 sales; 489 institutions reported holding it in 13F filings for Q2 2026, worth $13.8B 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
20 filings
6 insiders, $18.8M in total
Insiders trading
6
Net value
−$18.8M
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
Malik Fady IbrahamEVP Research & Development153,902Sep 22, 202622
Landry Robert EDirector8,184Sep 15, 20263
Blum Robert IPresident & CEO0IndirectSep 15, 202622
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
Sep 22, 2026 (view filing)6:14 PM ETSep 22Same dayMalik Fady IbrahamEVP Research & DevelopmentSSale−3.50K$68.29−$239.0K−2.2%153.9K after10b5-1
Sep 15, 2026 (view filing)5:23 PM ETSep 15Same dayLandry Robert EDirectorSSale−1.00K$72.13−$72.1K−10.9%8.18K after10b5-1
Sep 15, 2026 (view filing)5:20 PM ETSep 141 dayBlum Robert IPresident & CEOSSale−7.50K$73.44−$550.8K−1.9%377.8K after10b5-1
Sep 15, 2026 (view filing)5:20 PM ETSep 15Same dayBlum Robert IPresident & CEOSSale−97.9K$69.33−$6.79M−100.0%0 after10b5-1
Sep 11, 2026 (view filing)7:12 PM ETSep 11Same dayLandry Robert EDirectorSSale−1.00K$74.66−$74.7K−9.8%9.18K after10b5-1
Sep 8, 2026 (view filing)4:38 PM ETSep 8Same dayMalik Fady IbrahamEVP Research & DevelopmentSSale−3.50K$75.46−$264.1K−2.2%153.9K after10b5-1
Sep 1, 2026 (view filing)4:51 PM ETSep 1Same dayParshall B LynneDirectorSSale−5.00K$71.48−$357.4K−31.7%10.8K after10b5-1
Aug 31, 2026 (view filing)4:57 PM ETAug 31Same dayCallos AndrewEVP, Chief Commercial OfficerSSale−10.0K$70.24−$702.4K−14.6%58.6K after10b5-1
Aug 31, 2026 (view filing)4:55 PM ETAug 31Same dayBlum Robert IPresident & CEOSSale−7.50K$70.24−$526.8K−1.9%377.8K after10b5-1
Aug 18, 2026 (view filing)4:38 PM ETAug 18Same dayMalik Fady IbrahamEVP Research & DevelopmentSSale−3.50K$75.82−$265.4K−2.2%153.9K after10b5-1
Aug 10, 2026 (view filing)5:11 PM ETAug 10Same dayBlum Robert IPresident & CEOSSale−7.50K$76.76−$575.7K−1.9%377.8K after10b5-1
Jul 30, 2026 (view filing)4:26 PM ETJul 30Same dayCallos AndrewEVP, Chief Commercial OfficerSSale−14.0K$79.88−$1.12M−19.3%58.6K after10b5-1
Jul 27, 2026 (view filing)4:33 PM ETJul 27Same dayBlum Robert IPresident & CEOSSale−7.50K$80.87−$606.5K−1.9%377.8K after10b5-1
Jul 23, 2026 (view filing)4:09 PM ETJul 212 daysMalik Fady IbrahamEVP Research & DevelopmentSSale−3.50K$80.59−$282.1K−2.2%153.9K after10b5-1
Jul 14, 2026 (view filing)3:34 PM ETJul 131 dayBlum Robert IPresident & CEOSSale−7.50K$82.02−$615.1K−1.9%377.8K after2 lots10b5-1
Jul 7, 2026 (view filing)5:06 PM ETJul 7Same dayMalik Fady IbrahamEVP Research & DevelopmentSSale−3.50K$86.62−$303.2K−2.2%153.9K after10b5-1
Jul 2, 2026 (view filing)5:20 PM ETJul 11 dayBlum Robert IPresident & CEOSSale−7.50K$84.92−$636.9K−1.9%377.8K after10b5-1
Jul 2, 2026 (view filing)5:19 PM ETJul 11 dayCallos AndrewEVP, Chief Commercial OfficerSSale−15.0K$85.80−$1.29M−20.4%58.6K after10b5-1
Jul 2, 2026 (view filing)5:17 PM ETJul 11 dayLee SungEVP, Chief Financial OfficerSSale−1.11K$87.79−$97.6K−1.7%63.2K after10b5-1
Jun 29, 2026 (view filing)Jun 245 daysLateLee SungEVP, Chief Financial OfficerSSale−38.7K$82.30−$3.19M−38.0%63.2K after10b5-1
Jun 29, 2026 (view filing)Jun 29Same dayLee SungEVP, Chief Financial OfficerSSale−3.13K$85.00−$266.4K−4.7%63.2K after10b5-1
Jun 23, 2026 (view filing)Jun 23Same dayMalik Fady IbrahamEVP Research & DevelopmentSSale−3.50K$79.51−$278.3K−2.2%153.9K after10b5-1
Jun 15, 2026 (view filing)Jun 15Same dayBlum Robert IPresident & CEOSSale−7.50K$70.46−$528.5K−1.9%385.3K after10b5-1
Jun 9, 2026 (view filing)Jun 9Same dayMalik Fady IbrahamEVP Research & DevelopmentSSale−3.50K$67.98−$237.9K−2.2%153.9K after10b5-1
Jun 1, 2026 (view filing)Jun 1Same dayKaye Edward M. MDDirectorSSale−2.93K$76.09−$223.2K−22.2%10.3K after10b5-1
Jun 1, 2026 (view filing)Jun 1Same dayCallos AndrewEVP, Chief Commercial OfficerSSale−15.0K$74.08−$1.11M−20.4%58.6K after10b5-1
Jun 1, 2026 (view filing)Jun 1Same dayParshall B LynneDirectorSSale−5.00K$74.08−$370.4K−24.1%15.8K after10b5-1
May 28, 2026 (view filing)May 271 dayBlum Robert IPresident & CEOSSale−7.50K$77.21−$579.1K−1.9%392.8K after10b5-1
May 20, 2026 (view filing)May 191 dayMalik Fady IbrahamEVP Research & DevelopmentSSale−3.50K$75.69−$264.9K−2.2%153.9K after10b5-1
May 14, 2026 (view filing)May 14Same dayBlum Robert IPresident & CEOSSale−7.50K$77.92−$584.4K−1.8%400.3K after10b5-1
May 5, 2026 (view filing)May 5Same dayMalik Fady IbrahamEVP Research & DevelopmentSSale−3.50K$77.37−$270.8K−2.2%153.9K after10b5-1
May 5, 2026 (view filing)May 5Same dayWierenga WendellDirectorSSale−4.03K$75.00−$302.4K−11.0%32.6K after10b5-1
May 5, 2026 (view filing)May 5Same dayLee SungEVP, Chief Financial OfficerSSale−23.9K$76.87−$1.84M−27.4%63.2K after10b5-1
May 5, 2026 (view filing)May 5Same dayHenderson John TDirectorSSale−20.0K$75.97−$1.52M−21.0%75.2K after10b5-1
May 5, 2026 (view filing)May 5Same dayCallos AndrewEVP, Chief Commercial OfficerSSale−11.3K$77.25−$875.5K−16.2%58.6K after10b5-1
May 4, 2026 (view filing)May 13 daysCallos AndrewEVP, Chief Commercial OfficerSSale−15.9K$65.00−$1.03M−21.3%58.6K after10b5-1
Apr 30, 2026 (view filing)Apr 30Same dayCallos AndrewEVP, Chief Commercial OfficerSSale−15.0K$63.26−$948.9K−20.4%58.6K after10b5-1
Apr 29, 2026 (view filing)Apr 29Same dayBlum Robert IPresident & CEOSSale−7.50K$59.62−$447.1K−1.8%407.8K after10b5-1
Apr 21, 2026 (view filing)Apr 21Same dayMalik Fady IbrahamEVP Research & DevelopmentSSale−3.50K$65.69−$229.9K−2.2%153.9K after10b5-1
Apr 15, 2026 (view filing)Apr 15Same dayCallos AndrewEVP, Chief Commercial OfficerSSale−7.45K$66.02−$491.8K−11.3%58.6K after10b5-1
Apr 15, 2026 (view filing)Apr 15Same dayBlum Robert IPresident & CEOSSale−7.50K$65.38−$490.4K−1.8%415.3K after10b5-1
Apr 8, 2026 (view filing)Apr 71 dayMalik Fady IbrahamEVP Research & DevelopmentSSale−4.50K$65.11−$293.0K−2.8%153.9K after2 lots10b5-1
Apr 1, 2026 (view filing)Apr 1Same dayBlum Robert IPresident & CEOSSale−7.50K$66.63−$499.7K−1.7%422.8K after10b5-1
Mar 31, 2026 (view filing)Mar 31Same dayCallos AndrewEVP, Chief Commercial OfficerSSale−3.64K$65.00−$236.5K−5.2%66.0K after10b5-1
Mar 18, 2026 (view filing)Mar 171 dayLee SungEVP, Chief Financial OfficerSSale−4.93K$62.15−$306.7K−5.4%87.1K after
Mar 18, 2026 (view filing)Mar 171 dayCallos AndrewEVP, Chief Commercial OfficerSSale−8.54K$62.15−$530.9K−10.7%71.6K after2 lots
Mar 18, 2026 (view filing)Mar 171 dayMalik Fady IbrahamEVP Research & DevelopmentSSale−12.0K$62.15−$747.9K−7.3%153.9K after2 lots
Mar 18, 2026 (view filing)Mar 171 dayBlum Robert IPresident & CEOSSale−36.6K$62.15−$2.27M−7.8%430.3K after2 lots
Mar 18, 2026 (view filing)Mar 18Same dayCallos AndrewEVP, Chief Commercial OfficerSSale−1.93K$62.07−$119.8K−2.4%78.2K after10b5-1
Mar 16, 2026 (view filing)Mar 16Same dayCallos AndrewEVP, Chief Commercial OfficerSSale−1.71K$61.03−$104.3K−3.6%46.1K after10b5-1