Position in MAIR
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$21,569,925
New position
Shares Held
553,075
first reported quarter
Ownership
0.110%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
#38
of 157 holders
Holding Since
Jun 2026
1 quarter on record
Voting authority
Sole 100%
Shared 0%
None 0%
Derivatives in MAIR
reported options exposure · as of Jun 30, 2026CallValue
$405,600
CallShares
10,400
PutValue
$0
PutShares
0
Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.
Position in Building Products & Equipment
Industrials · as of Jun 30, 2026JANE STREET GROUP, LLC holds $1,024,280,540 across 24 Building Products & Equipment names. MAIR ranks #6 (2.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | JCI |
Johnson Controls International plc
|
2,494,059 | $364,406,960 | |
| 2 | TT |
Trane Technologies plc
|
478,348 | $234,945,403 | |
| 3 | SPXC |
SPX Technologies, Inc.
|
766,555 | $187,936,289 | |
| 4 | AAON |
Aaon, Inc.
|
973,933 | $123,553,139 | |
| 5 | CARR |
CARRIER GLOBAL Corp
|
952,345 | $69,854,504 | |
| 6 | MAIR |
Madison Air Solutions Corp
This page
|
553,075 | $21,569,925 | |
| 7 | LMB |
Limbach Holdings, Inc.
|
125,135 | $9,635,395 | |
| 8 | FBIN |
Fortune Brands Innovations, Inc.
|
56,002 | $3,074,509 |
All Filings in MAIR
Export CSV
2 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $21,569,925 | 553,075 | Shares | Defined | 2026-08-14 | |
| 2026-06-30 | $405,600 | 10,400 | Call | Defined | 2026-08-14 | |
| No filing history on record for this holder in this stock. | ||||||