A completed week, fixed in place. The live page covers the rolling last seven days.
to
Over the past seven days, corporate insiders reported 202 open-market purchases across 96 companies, by 118 distinct insiders, for a combined $186.56M of stock bought with personal capital. That is down 7% on the $201.65M bought the week before.
The largest single purchase: BAKER BROS. ADVISORS LP (Insider) bought $55.00M of Kodiak Sciences Inc. (KOD).
5 of this week's names saw cluster buying (two or more insiders in the same window): AKTX (7 insiders), XSPIX (2 insiders), BCIC (5 insiders), COO (2 insiders), TPVG (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 2025-12-15 and 2025-12-21, and will not change. Grants, option exercises and shares withheld for tax are excluded: they are compensation mechanics rather than a decision to buy.