Madison Air Solutions Corporation
A global maker of indoor air quality, HVAC, and airflow equipment, Madison Air Solutions owns brands such as AprilAire humidifiers, Reznor heaters, and Big Ass Fans. Founded in 2017 by Larry Gies of Madison Industries in Chicago, it was assembled by buying established ventilation brands and gathering them under one roof. One of those brands, Big Ass Fans, started in 1999 selling large slow-turning fans to dairy farmers and earned its name when customers kept calling the maker "the guys with those big ass fans."
Bought 8.77M
Granted 24.83M
Granted 18.3K
Granted 5.7K · Bought 20.0K
Granted 5.1K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Bertarelli Ernesto +1 co-filer10% owner · 1 transaction | — | 53.61M | — | 8.77M | — |
| Gies Larry +1 co-filerDirector, 10% owner · 2 transactions | — | 24.83M | 24.83M | — | — |
| Wyant Jill SChief Executive Officer, Director · 2 transactions | — | 3.47M | — | — | — |
| Foley John Joseph VChief Financial Officer · 1 transaction | — | 1.64M | — | — | — |
| Philippi DalePresident & CEO of AprilAire · 1 transaction | — | 233.6K | 18.3K | — | — |
| Larson LeahGroup President Air Mvmt/Heat · 1 transaction | — | 181.3K | — | — | — |
| La Force Andrew Hudson IIIDirector · 2 transactions | — | 36.7K | 5.7K | 20.0K | — |
| Nolen GeorgeDirector · 1 transaction | — | 5.1K | 5.1K | — | — |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over all recorded history: +8.79M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.