Question 1

Who are the insiders buying CYTOKINETICS INC stock?

Accepted Answer

InsiderAct tracks all open-market purchases of CYTOKINETICS INC stock by corporate insiders — including officers, directors, and shareholders owning more than 10% — sourced from public SEC Form 4 filings.

Question 2

What does insider buying at a company mean?

Accepted Answer

When a corporate officer, director, or major shareholder purchases their own company's stock on the open market using personal funds, it signals confidence in the company's outlook. This is especially meaningful when multiple insiders buy within the same 7–14 day window (cluster buying) or when the purchase size exceeds $100,000.

Question 3

How do I find cluster buying signals for a company?

Accepted Answer

InsiderAct automatically detects cluster buying — two or more insiders independently purchasing shares within a 14-day window. When a cluster buy signal is active for a company, it appears prominently on the company's InsiderAct page and on the Signals tab.

Question 4

Has CYTOKINETICS INC had any recent large insider purchases?

Accepted Answer

InsiderAct tracks all open-market purchases of $100,000 or more at CYTOKINETICS INC. Large insider purchases are flagged as high-conviction signals because they represent meaningful personal capital commitments by executives or directors who have direct visibility into the company's operations and prospects.

Question 5

Where do the insider transactions on this page come from?

Accepted Answer

All transactions shown on InsiderAct company pages are sourced directly from SEC EDGAR Form 4 filings — the mandatory public disclosures that corporate insiders must submit within 2 business days of any stock transaction. InsiderAct ingests these filings in near real time and filters for open-market purchases and sales.


2026-04-15	2026-04-15	Wysenski Nancy	Director	Award	95	$65.37	$6,210
2026-04-15	2026-04-15	Wierenga Wendell	Director	Award	95	$65.37	$6,210
2026-04-15	2026-04-15	Kaye Edward M. Md	Director	Award	191	$65.37	$12,486
2026-04-15	2026-04-15	Henderson John T	Director	Award	325	$65.37	$21,245
2026-04-15	2026-04-15	Harrington Robert Arthur	Director	Award	191	$65.37	$12,486
2026-04-15	2026-04-15	Daly James M	Director	Award	191	$65.37	$12,486
2026-04-15	2026-04-15	Callos Andrew	CCO	Sale	7,449	$66.02	$491,783
2026-04-15	2026-04-15	Blum Robert I	CEO	Sale	7,500	$65.38	$490,350
2026-04-08	2026-04-07	Malik Fady Ibraham	EVP	Exercise Conversion	3,500	$0.00	$0
2026-04-08	2026-04-07	Malik Fady Ibraham	EVP	Exercise Conversion	1,000	$0.00	$0

CYTK

Insider Activity

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