Security Snapshot

Madison Air Solutions Corp - Class A Common Stock, par value $0.0000001 per share (MAIR) Institutional Ownership

CUSIP: 55658T105

13F Institutional Holders and Ownership History from Q2 2026 to Q3 2026

13F reference period

Q3 2026

Institutions Reporting

66

Shares (Excl. Options)

72.58MFull value: 72,582,954 · shares · 30 Sep 2026

Price

$24.60

The headline uses the Q3 2026 reference period after its reporting deadline. Available reports may still be incomplete or amended.

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Latest holder snapshot 5 signals
Portfolio coverage rank
0.01%
Share change
+28,435,036
Value change
+$686,167,235
Number of holders
66
Issuer context Names, identifiers, and filing context for this profile. 2 identity fields
Shares outstanding
591,667,948
SEC-reported price per share
$23.29
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Filing notes and source

Key facts

  • MAIR - Madison Air Solutions Corp - Class A Common Stock, par value $0.0000001 per share is tracked under CUSIP 55658T105.
  • 66 institutions reported positions in Q3 2026.
  • 4 significant owners is listed from Schedule 13D/13G reporting.

Change

  • Holder count moved from 157 to 66 between Q2 2026 and Q3 2026.
  • SEC-reported value moved from
    $4.79BFull value: $4,787,946,226 · USD · 30 Jun 2026
    to
    $1.79BFull value: $1,785,393,270 · USD · 30 Sep 2026
    .

Research use

  • You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
  • 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.

Evidence

Source: SEC Form 13F

Latest holder context comes from 66 institutions filings for Q3 2026.

Open SEC evidence

Security key

55658T105

13F reference period

Q3 2026

13F holders

66

13D/G owners

4

CIK / CUSIP context first

13D/G owners

Significant owners

Large-stake holder rows connected to Schedule 13D/G evidence.

Rows
4
Security
MAIR
Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
Gies Larry 61% -9% $8,419,547,312 +$578,285,926 361,509,116 +7.4% Larry Gies 30 Sep 2026
BERTARELLI ERNESTO 20% -21% $1,248,614,048 +$204,265,504 53,611,595 +20% Ernesto Bertarelli 30 Sep 2026
HRTG PV, L.P. 9.5% $592,242,155 25,429,032 HRTG GPE, LLC 01 Sep 2026
FMR LLC 6.6% -18% $411,371,699 +$83,332,086 17,663,018 +25% FMR LLC 30 Sep 2026
As of 30 Sep 2026, 66 institutional investors reported holding
72.58MFull value: 72,582,954 · shares · 30 Sep 2026
shares of Madison Air Solutions Corp - Class A Common Stock, par value $0.0000001 per share (MAIR). This represents 12% of the company’s total
591.67MFull value: 591,667,948 · shares · Stored outstanding share count
outstanding shares.

13F concentration

Top 25 institutional shareholders

Largest 13F positions for this security by reported shares and value.

Top holder share
12%
Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
HRTG GPE, LLC 4.3% 25,429,032 +243% 27% $625,554,187
Invesco Ltd. 1.8% 10,360,046 +33% 0.02% $254,857,132
MORGAN STANLEY 1.1% 6,542,875 +13% 0.01% $160,954,739
Pictet Asset Management Holding SA 1.1% 6,337,704 +43% 0.15% $155,907,541
Forest Avenue Capital Management LP 0.91% 5,405,475 +33% 8.3% $132,974,685
VANGUARD CAPITAL MANAGEMENT LLC 0.63% 3,710,769 -0.05% 0% $91,284,917
VANGUARD PORTFOLIO MANAGEMENT LLC 0.52% 3,072,290 +0.22% 0% $75,578,334
HARTFORD INVESTMENT MANAGEMENT CO 0.38% 2,249,452 1.6% $55,336,519
Robeco Schweiz AG 0.26% 1,537,926 +152% 0.68% $37,832,980
Daiwa Securities Group Inc. 0.17% 1,000,452 +150% 0.05% $24,611,119
GEODE CAPITAL MANAGEMENT, LLC 0.16% 920,123 -3.5% 0% $22,648,869
SOROS FUND MANAGEMENT LLC 0.11% 625,004 0% 0.24% $15,375,098
Saraza Management, LP 0.1% 574,500 4.8% $14,132,700
VANGUARD FIDUCIARY TRUST CO 0.09% 545,422 +0.08% 0% $13,417,381
Jump Financial, LLC 0.08% 456,417 +5925% 0.09% $11,227,858
STATE STREET CORP 0.07% 423,214 -0.32% 0% $10,411,064
Capital World Investors 0.07% 399,830 +1.5% 0% $9,835,818
Champlain Investment Partners, LLC 0.06% 352,940 0.3% $8,682,324
CAPTRUST FINANCIAL ADVISORS 0.06% 333,249 0.01% $8,197,913
BlueCrest Capital Management Ltd 0.05% 300,000 -51% 0.58% $7,380,000
BNP PARIBAS FINANCIAL MARKETS 0.05% 282,979 0% $6,961,283
BW Gestao de Investimentos Ltda. 0.05% 280,000 +40% 0.22% $6,888,000
RENAISSANCE TECHNOLOGIES LLC 0.04% 238,300 0.01% $5,862,180
Amundi 0.03% 173,013 +5.3% 0% $4,256,120
FRANKLIN TEMPLETON INC 0.03% 162,708 -65% 0% $3,841,535

Quarter history

Institutional holders across reporting periods

Holder count, reported shares/value, and median price by quarter.

Periods
2
Headline period
Q3 2026
Rows shown
1-2 of 2
Period 13F Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q3 72,582,954 $1,785,393,270 +$686,167,235 $24.60 66
2026 Q2 122,768,497 $4,787,946,226 +$4,787,946,226 $39.00 157
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