As of November 6, 2026, 5 holders' latest Schedule 13D or 13G filings report owning 5% or more of Madison Air Solutions Corp. The largest reported stake is Larry Gies', at 67.1%. 7 filings are on record since April 23, 2026 (Schedule 13G, August 10, 2026).
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Key facts
- · Reporting person: Hrtg Pv, L.P. · Sole voting: 0 · Shared voting: 20,423,025 · Sole dispositive: 0 · Shared dispositive: 20,423,025 · SCHEDULE 13G, 2026-11-05
- · Reporting person: Fmr LLC · Sole voting: 17,629,550 · Shared voting: 0 · Sole dispositive: 17,663,018 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-11-05
- · Reporting person: Ernesto Bertarelli · Sole voting: 0 · Shared voting: 53,611,595 · Sole dispositive: 0 · Shared dispositive: 53,611,595 · SCHEDULE 13G/A, 2026-11-04
- · Reporting person: Larry Gies · Sole voting: 0 · Shared voting: 336,679,321 · Sole dispositive: 0 · Shared dispositive: 336,679,321 · SCHEDULE 13G, 2026-08-10
- · Holder: Fmr LLC · Percent: 8% · SCHEDULE 13G
Madison Air Solutions Corp has 7 Schedule 13D or 13G filings on record since 2026-04-23. 5 holders' latest filing reports 5% or more of class a common stock, par value $0.0000001 per share. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| 67.1% | 336,679,321 | SCHEDULE 13G, 2026-08-10 | 2026-06-30 | |
| 20% | 53,611,595 | SCHEDULE 13G/A, 2026-11-04 | 2026-09-30 | |
| Hrtg Gpe, LLC | 9.5% | 25,429,032 | SCHEDULE 13G, 2026-11-05 | 2026-09-01 |
| Fmr LLC | 6.6% | 17,663,018 | SCHEDULE 13G/A, 2026-11-05 | 2026-09-30 |
| Durable Capital Partners LP | 5.2% | 9,259,259 | SCHEDULE 13G, 2026-04-23 | 2026-04-16 |
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More on Madison Air Solutions Corp and the records around it.
Madison Air Solutions Corp elsewhere on the record
- Leadership changes Jun 2026
- IPO filing Apr 2026
- Who owns it
Companies that share a holder
- Durable Capital Partners LP also filed stake reports on 13 other companies: Shift4 Payments, Inc. (Aug 2026), Goosehead Insurance, Inc. (Aug 2026), Colliers International Group Inc. (May 2026)
- FMR LLC also filed stake reports on 761 other companies: ASPEN NEUROSCIENCE INC (Nov 2026), AVALO THERAPEUTICS INC (Nov 2026), BRAZE INC (Nov 2026)
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| Larry Gies | 0 | 336,679,321 | 0 | 336,679,321 | SCHEDULE 13G, 2026-08-10 |
| Madison Industries Holdings LLC | 0 | 324,379,859 | 0 | 324,379,859 | SCHEDULE 13G, 2026-08-10 |
| Madison Air Co-Investors LLC | 0 | 12,299,462 | 0 | 12,299,462 | SCHEDULE 13G, 2026-08-10 |
| Ernesto Bertarelli | 0 | 53,611,595 | 0 | 53,611,595 | SCHEDULE 13G/A, 2026-11-04 |
| KC Armada LP | 0 | 46,387,522 | 0 | 46,387,522 | SCHEDULE 13G/A, 2026-11-04 |
| Hrtg Pv, L.P. | 0 | 20,423,025 | 0 | 20,423,025 | SCHEDULE 13G, 2026-11-05 |
| Hrtg Cif 2026, L.P. | 0 | 5,006,007 | 0 | 5,006,007 | SCHEDULE 13G, 2026-11-05 |
| Hrtg Gpe, LLC | 0 | 25,429,032 | 0 | 25,429,032 | SCHEDULE 13G, 2026-11-05 |
| Kelly Kevin Anthony | 0 | 25,429,032 | 0 | 25,429,032 | SCHEDULE 13G, 2026-11-05 |
| Johnson Keith Bryon | 0 | 25,429,032 | 0 | 25,429,032 | SCHEDULE 13G, 2026-11-05 |
| Fmr LLC | 17,629,550 | 0 | 17,663,018 | 0 | SCHEDULE 13G/A, 2026-11-05 |
| Abigail P. Johnson | 0 | 0 | 17,663,018 | 0 | SCHEDULE 13G/A, 2026-11-05 |
| Durable Capital Partners LP | 9,259,259 | 0 | 9,259,259 | 0 | SCHEDULE 13G, 2026-04-23 |
The latest filing identifies Madison Air Solutions Corp by CUSIP 55658T105 and gives its principal executive office as 444 WEST LAKE STREET, SUITE 4460, CHICAGO, IL 60606 (SCHEDULE 13G, 2026-11-05).
What the percentages are based on
The information set forth in Row 11 of the cover page for each of the Reporting Persons is incorporated herein by reference.Ernesto Bertarelli, SCHEDULE 13G/A, 2026-11-04
9.5%.Hrtg Gpe, LLC, SCHEDULE 13G, 2026-11-05
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2026-04-23 | Durable Capital Partners LP | 5.2% | SCHEDULE 13G |
| 2026-05-15 | Ernesto Bertarelli | 25.3% | SCHEDULE 13G |
| 2026-08-06 | Fmr LLC | 8% | SCHEDULE 13G |
| 2026-08-10 | Larry Gies | 67.1% | SCHEDULE 13G |
| 2026-11-04 | Ernesto Bertarelli | 20% | SCHEDULE 13G/A |
| 2026-11-05 | Fmr LLC | 6.6% | SCHEDULE 13G/A |
| 2026-11-05 | Hrtg Gpe, LLC | 9.5% | SCHEDULE 13G |
Questions about who owns Madison Air Solutions Corp
Who owns Madison Air Solutions Corp?
On this page, 5 holders' latest ownership filings report 5% or more of Madison Air Solutions Corp: Larry Gies (67.1%, Schedule 13G, filed 2026-08-10), Ernesto Bertarelli (20%, Schedule 13G/A, filed 2026-11-04), Hrtg Gpe, LLC (9.5%, Schedule 13G, filed 2026-11-05), Fmr LLC (6.6%, Schedule 13G/A, filed 2026-11-05) and Durable Capital Partners LP (5.2%, Schedule 13G, filed 2026-04-23).
Who are the largest shareholders of Madison Air Solutions Corp?
By the share each holder's latest filing reports, the largest holders of Madison Air Solutions Corp on this page are Larry Gies (67.1%), Ernesto Bertarelli (20%) and Hrtg Gpe, LLC (9.5%).
When did Larry Gies buy into Madison Air Solutions Corp?
The filings give report dates, not purchase dates. The earliest filing from Larry Gies on this page is the Schedule 13G, filed 2026-08-10, reporting 67.1%.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 7 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
Also on the record for Madison Air Solutions Corp
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| June 16, 2026 | Leadership change: David M. Wisniewski appointed, Chief Accounting Officer | — | Leadership changes | Source |
| April 17, 2026 | IPO filing, Form 424B4 | $27 a share | IPO filings | Source |
| April 17, 2026 | Leadership change filing (Form 8-K, Item 5.02) | — | Leadership changes | Source |
| April 6, 2026 | IPO filing, Form S-1/A | — | IPO filings | Source |
| March 16, 2026 | IPO filing, Form S-1/A | — | IPO filings | Source |
| March 9, 2026 | IPO filing, Form S-1 | — | IPO filings | Source |
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.