Buy MAIR by Dec 16, 2026.

Form 4 filings this week: two insiders at Madison Air Solutions (MAIR) disclosed open-market purchases totaling $219.6M. Same week, smaller filings came in from insiders at ACDC ($5.7M), DKS ($3.8M) and INBX ($3.5M). The instinct is to treat the $219.6M as the strongest signal on the list because it's the biggest number. It isn't necessarily. Dollar size scales with how wealthy the filer already is, so a $200K purchase from a director whose whole stake is $700K can be a …