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MAIR Madison Air Solutions Corporation

Industrials, filed as MADISON AIR SOLUTIONS CORP (COM SHS CL A), Equity As of 2026 Q2 among managers we track Quote on Google Finance, opens in a new tab

Bought by 5 managers in 2026 Q2

  • 5 Owners
  • Max 3.9%
  • $524M
  • 5 new

In 2026 Q2, 5 managers opened positions.

Who owns this now

Largest portfolio weights among holders, up to 3.9% (Henry Ellenbogen, Durable Capital Partners). Not free-float ownership.

  1. Henry Ellenbogen New 3.9%
  2. George Soros New 0.30%
  3. Dan Sundheim New 0.14%
  4. Davidson Kempner Capital Mana... New 0.09%
  5. Ron Baron New 0.07%

Who owns MAIR

Sorted by value, long equity only, as of 2026 Q2.

History
Henry Ellenbogen, Durable Capital Partners 3.9% New 3.9% 10,196,486 $398M History
Dan Sundheim, D1 Capital Partners 0.14% New 0.14% 1,250,000 $49M History
Ron Baron, Bamco Inc. (Baron Capital) 0.07% New 0.07% 1,169,540 $46M History
George Soros, Soros Fund Management 0.30% New 0.30% 625,004 $24M History
Davidson Kempner Capital Management 0.09% New 0.09% 200,000 $7.8M History

5 current, options excluded

Weight bar: held both quarters added sold at this quarter’s reported price

Insider trades

Open-market buys and sales by MAIR's executives, directors and 10% owners in the last 12 months, from their Form 4s

All MAIR insider trades
  • $220M bought by 2 insiders
  • None no sales outside a trading plan
  • None no planned (10b5-1) sales
  1. Ernesto Bertarelli 10% owner, +1 joint filer
    Buy
    $219M 8,770,524 shares at $24.97 +23% to stake
    Traded Aug 25 Filed Aug 27
    ↗
  2. Andrew Hudson La Force III Director
    Buy
    $557K 20,000 shares at $27.84 +120% to stake
    Traded Aug 25 Filed Aug 26
    ↗

Also filed in the last 12 months, not counted as buying or selling: 6 stock grants and 4 share withholdings for taxes.

SEC filings

Recent issuer filings from EDGAR, 17 shown.

Filed Form Detail Links
8-K 1.01,3.02,7.01,9.01 Filing Doc
8-K 1.01,7.01,9.01 Filing Doc
SCHEDULE 13G — Filing Doc
SCHEDULE 13G — Filing Doc
8-K 2.02,9.01 Filing Doc
10-Q Filing Doc
8-K 5.02,9.01 Filing Doc
8-K 1.01,2.03,9.01 Filing Doc
SCHEDULE 13G — Filing Doc
8-K 2.02,9.01 Filing Doc
10-Q Filing Doc
SCHEDULE 13G — Filing Doc
424B4 Filing Doc
8-K 1.01,3.02,3.03,5.02,5.03,8.01,9.01 Filing Doc
S-1/A Filing Doc
S-1/A Filing Doc
S-1 Filing Doc

Source: SEC EDGAR submissions, updated about 2 months ago. All on EDGAR

Financials

US-GAAP annual figures, as tagged in Form 10-K

Newly public, no 10-K financials yet. See the S-1/A.

Ownership over time

13Fs that reported it each quarter. Click a bar for that quarter’s holders.

Q2 2026

Period archive