Vault-13

MESA AIR GROUP INC

COM NEW · CUSIP 590479135

0 institutional holders -33 vs Q3 2025
—reported value*
0 new 0 added 0 reduced 33 sold out net sold ≈ $10.4m (-8.0m shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable.

Trends to Q4 2025

Institutional holders

Managers reporting a position, each quarter

0255075Q3 22: 64Q4 22: 58Q1 23: 54Q2 23: 54Q3 23: 42Q4 23: 49Q1 24: 43Q2 24: 44Q3 24: 42Q4 24: 40Q1 25: 36Q2 25: 35Q3 25: 33Q4 25: 00Q3 22Q2 23Q1 24Q4 24Q4 25
Numbers
QuarterHolders
Q3 202264
Q4 202258
Q1 202354
Q2 202354
Q3 202342
Q4 202349
Q1 202443
Q2 202444
Q3 202442
Q4 202440
Q1 202536
Q2 202535
Q3 202533
Q4 20250

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
40040Q1 24: 13 bought or addedQ1 24: 25 cut or sold outQ2 24: 18 bought or addedQ2 24: 17 cut or sold outQ2 24Q3 24: 14 bought or addedQ3 24: 20 cut or sold outQ4 24: 14 bought or addedQ4 24: 21 cut or sold outQ4 24Q1 25: 15 bought or addedQ1 25: 20 cut or sold outQ2 25: 17 bought or addedQ2 25: 18 cut or sold outQ2 25Q3 25: 14 bought or addedQ3 25: 14 cut or sold outQ4 25: 0 bought or addedQ4 25: 33 cut or sold outQ4 25
Numbers
QuarterBought or addedCut or sold out
Q1 20241325
Q2 20241817
Q3 20241420
Q4 20241421
Q1 20251520
Q2 20251718
Q3 20251414
Q4 2025033

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$50k$100k$150k$200kQ1 25 calls: $106.2kQ1 25 puts: $6.7kQ1 25P/C 0.06Q2 25 calls: $127.2kQ2 25 puts: $56.5kQ2 25P/C 0.44Q3 25 calls: $168.5kQ3 25 puts: $88.1kQ3 25P/C 0.52Q4 25 calls: $0Q4 25 puts: $0Q4 25P/C —
Numbers
QuarterCallsPutsP/C
Q1 2025$106.2k$6.7k0.06
Q2 2025$127.2k$56.5k0.44
Q3 2025$168.5k$88.1k0.52
Q4 2025$0$0—

Biggest buyers

None

Biggest sellers

PAR CAPITAL MANAGEMENT INC Sold out -2,585,876-2.6m
VANGUARD GROUP INC Sold out -1,691,207-1.7m
Pinnacle Holdings, LLC Sold out -1,628,136-1.6m
Orvieto Partners, L.P. Sold out -550,726-550.7k
BlackRock, Inc. Sold out -528,056-528.1k
GEODE CAPITAL MANAGEMENT, LLC Sold out -361,068-361.1k
RENAISSANCE TECHNOLOGIES LLC Sold out -167,784-167.8k
STATE STREET CORP Sold out -125,493-125.5k
NORTHERN TRUST CORP Sold out -73,333-73.3k
SUSQUEHANNA INTERNATIONAL GROUP, LLP Sold out -52,904-52.9k

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
United Airlines Holdings, Inc. 13D · may seek influence filed 2025-04-08
Stated purposeItem 4 of the Schedule 13D is hereby amended and supplemented as follows: On April 4, 2025, the Issuer entered into an Agreement, Plan of Conversion and Plan of Merger (the "Merger Agreement") with Republic Airways Holdings Inc., a Delaware corporation ("Republic Airways"). Subject to the terms and conditions of the Merger Agreement, Republic Airways will merge with and into the Issuer (the "Merger"), with the Issuer continuing as the surviving corporation following the Merger. At the effective time of the Merger (the "Effective Time"), each share of common stock, par value $0.001 per share, of Republic Airways issued and outstanding immediately prior to the Effective Time (other than any Cancelled Shares (as defined in the Merger Agreement) and dissenting shares held by stockholders wh… Full filing
 9.8% 4.0m 2025-04-08
PAR INVESTMENT PARTNERS LP 13G · passive investor +1.0 pts · filed 2025-11-14 6.2% +1.0 pts 2.6m 2025-11-14

Holders, Q4 2025

#ManagerLocationShares Value% of their portfolioChangeShares change