MAIR · Insider Trading
Madison Air Solutions Corporation
Every open-market purchase and sale reported by MAIR officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-27 | Madison Industries Holdings LLC | Director | A | +49,659,590 | +$1.24B |
| 2026-08-27 | KC Armada LP | 10%+ Owner | Buy | +17,541,048 | +$438.00M |
| 2026-08-26 | Andrew Hudson La Force III | Director | Buy | +20,000 | +$556.80K |
| 2026-08-25 | Leah Larson | Group President Air Mvmt/Heat | F | −20,518 | −$538.60K |
| 2026-07-16 | David M Wisniewski | Chief Accounting Officer | A | +19,808 | — |
| 2026-06-29 | George Nolen | Director | A | +5,077 | — |
| 2026-06-29 | Andrew Hudson La Force III | Director | A | +5,711 | — |
| 2026-06-23 | Jill S Wyant | Chief Executive Officer | F | −93,618 | −$3.57M |
| 2026-06-23 | John Joseph V Foley | Chief Financial Officer | F | −21,143 | −$806.18K |
| 2026-06-17 | Jill S Wyant | Chief Executive Officer | F | −167,516 | −$6.54M |
| 2026-05-19 | Dale Philippi | President & CEO of AprilAire | A | +18,293 | — |
| 2008-04-03 | Lloyd I Miller III | 10%+ Owner | Buy | +39,500 | +$146.15K |
| 2008-04-02 | Lloyd I Miller III | 10%+ Owner | Buy | +500 | +$1.85K |
| 2008-04-01 | Lloyd I Miller III | 10%+ Owner | Buy | +40,000 | +$152.00K |
| 2007-11-29 | Riley Investment Management LLC | — | Buy | +14,016 | +$70.08K |
| 2007-11-26 | Riley Investment Partners Master Fund, L.P. | — | Buy | +5,956 | +$29.78K |
| 2007-11-20 | Riley Investment Management LLC | — | Buy | +598 | +$2.96K |
| 2007-11-13 | Riley Investment Management LLC | — | Buy | +100,000 | +$500.88K |
| 2007-10-18 | Riley Investment Management LLC | — | Buy | +137,618 | +$712.86K |
| 2007-08-01 | Pierson M Grieve | Director | M | +14,782 | +$88.25K |
| 2007-07-02 | Robert E Weil | Chief Financial Officer | MIXED | — | −$656 |
| 2007-06-28 | Robert E Weil | Chief Financial Officer | MIXED | — | −$2.75K |
| 2007-06-26 | Robert E Weil | Chief Financial Officer | MIXED | — | −$7.59K |
| 2007-06-22 | Paul F Foley | Chief Executive Officer | MIXED | — | −$1.64K |
| 2007-06-15 | Paul F Foley | Chief Executive Officer | MIXED | — | −$14.72K |
| 2007-06-13 | Paul F Foley | Chief Executive Officer | MIXED | — | −$1.60K |
| 2007-03-27 | Riley Investment Partners Master Fund, L.P. | — | Buy | +40,304 | +$263.99K |
| 2007-03-22 | Donald E Benson | Director | M | +15,000 | +$89.55K |
| 2007-03-15 | John G Spanjers | — | MIXED | — | −$7.31K |
| 2007-03-14 | NORTHWEST AIRLINES CORP | 10%+ Owner | Sell | −5,657,113 | −$35.36M |
| 2007-03-13 | Riley Investment Management LLC | — | Buy | +28,314 | +$194.80K |
| 2007-03-06 | John G Spanjers | — | MIXED | — | −$3.41K |
| 2007-02-28 | John G Spanjers | — | MIXED | — | −$2.56K |
| 2007-02-21 | Riley Investment Partners Master Fund, L.P. | — | Buy | +49,516 | +$346.61K |
| 2007-02-12 | William T Poerstel | — | MIXED | — | −$10.50K |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Madison Industries Holdings LLC | Director | 12,014,417 | $275.37M |
| KC Armada LP | 10%+ Owner | 7,224,073 | $165.58M |
| Jill S Wyant | Chief Executive Officer | 3,472,415 | $79.59M |
| John Joseph V Foley | Chief Financial Officer | 1,641,786 | $37.63M |
| Dale Philippi | President & CEO of AprilAire | 233,613 | $5.35M |
| Leah Larson | Group President Air Mvmt/Heat | 181,331 | $4.16M |
| Andrew Hudson La Force III | Director | 36,713 | $841.46K |
| David M Wisniewski | Chief Accounting Officer | 19,808 | $454.00K |
| George Nolen | Director | 5,077 | $116.36K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the MAIR quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.