A completed week, fixed in place. The live page covers the rolling last seven days.
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Over the past seven days, corporate insiders reported 664 open-market purchases across 239 companies, by 385 distinct insiders, for a combined $807.52M of stock bought with personal capital. That is down 90% on the $7.77B bought the week before.
The largest single purchase: RA CAPITAL MANAGEMENT, L.P. (Insider) bought $75.00M of Artiva Biotherapeutics, Inc. (ARTV).
5 of this week's names saw cluster buying (two or more insiders in the same window): FLUT (8 insiders), ODTX (7 insiders), ALKT (2 insiders), WGS (2 insiders), PLSE (2 insiders). See all current clusters on the cluster page.
The figures on this page describe SEC Form 4 open-market purchases (transaction code P) reported between 2026-05-11 and 2026-05-17, and will not change. Grants, option exercises and shares withheld for tax are excluded: they are compensation mechanics rather than a decision to buy.