Ranked by reported Q3 2025 13F market value
Share of total reported institutional value in MESA held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | PAR CAPITAL MANAGEMENT INC | 2.6M | $3.4M | +15.0% | 6.175% | 0.13% |
| 2 | VANGUARD GROUP INC | 1.7M | $2.2M | 0.0% | 4.038% | 0.00% |
| 3 | Pinnacle Holdings, LLC | 1.6M | $2.1M | +31.8% | 3.888% | 0.74% |
| 4 | Orvieto Partners, L.P. | 551K | $716K | +15.4% | 1.315% | 0.60% |
| 5 | BlackRock, Inc. | 528K | $686K | +1.9% | 1.261% | 0.00% |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | 361K | $470K | -0.1% | 0.862% | 0.00% |
| 7 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 250K | $325K | -7.1% | 0.598% | 0.00% |
| 8 | RENAISSANCE TECHNOLOGIES LLC | 168K | $218K | +67.5% | 0.401% | 0.00% |
| 9 | STATE STREET CORP | 125K | $163K | 0.0% | 0.300% | 0.00% |
| 10 | NORTHERN TRUST CORP | 73K | $95K | 0.0% | 0.175% | 0.00% |
| 11 | XTX Topco Ltd | 38K | $49K | +215.8% | 0.090% | 0.00% |
| 12 | RAYMOND JAMES FINANCIAL INC | 33K | $43K | 0.0% | 0.079% | 0.00% |
| 13 | CITADEL ADVISORS LLC | 29K | $37K | -70.2% | 0.069% | 0.00% |
| 14 | TWO SIGMA INVESTMENTS, LP | 26K | $34K | -1.7% | 0.063% | 0.00% |
| 15 | TWO SIGMA ADVISERS, LP | 14K | $19K | -15.9% | 0.034% | 0.00% |
| 16 | WELLS FARGO & COMPANY/MN | 14K | $18K | +0.7% | 0.033% | 0.00% |
| 17 | TWO SIGMA SECURITIES, LLC | 10K | $13K | — | 0.024% | 0.00% |
| 18 | MORGAN STANLEY | 8K | $10K | -11.8% | 0.018% | 0.00% |
| 19 | UBS Group AG | 4K | $5K | — | 0.010% | 0.00% |
| 20 | SBI Securities Co., Ltd. | 2K | $3K | 0.0% | 0.005% | 0.00% |
| 21 | Tower Research Capital LLC (TRC) | 1K | $2K | +85.5% | 0.003% | 0.00% |
| 22 | GROUP ONE TRADING, L.P. | 1K | $2K | -74.4% | 0.003% | 0.00% |
| 23 | Ameritas Advisory Services, LLC | 500 | $650 | 0.0% | 0.001% | 0.00% |
| 24 | ADVISOR GROUP HOLDINGS, INC. | 400 | $528 | — | 0.001% | 0.00% |
| 25 | BNP PARIBAS ARBITRAGE, SA | 336 | $437 | 0.0% | 0.001% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in MESA — a direct measure of their conviction.
Filings activity in MESA during Q3 2025, grouped by how each filer changed its position.
Institutions that opened a new MESA position in Q3 2025
Institutions that fully closed their MESA position in Q3 2025
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q3 2025 | 33 | 2.9% | 1.20% | +0.42 pp | $11M | +54% |
| Q2 2025 | 34 | 2.9% | 0.78% | +0.39 pp | $7M | +101% |
| Q1 2025 | 35 | 13% | 0.39% | 0.15 pp | $3M | 28% |
| Q4 2024 | 40 | +0.0% | 0.54% | 0.09 pp | $5M | 14% |
| Q3 2024 | 40 | 9.1% | 0.63% | 0.27 pp | $6M | 30% |
| Q2 2024 | 44 | +10% | 0.90% | +0.49 pp | $8M | +121% |
| Q1 2024 | 40 | 64% | 0.41% | 166.63 pp | $4M | 100% |
| Q2 2021 | 111 | — | 167.04% | — | $1.47B | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying MESA stock.
Based on Q3 2025 13F filings, institutional ownership of Mesa Air Group, Inc. stands at 1.2%, held across 33 reporting institutions.
PAR CAPITAL MANAGEMENT INC is the largest reported institutional holder of MESA, with approximately 2,585,876 shares worth $0.00B as of Q3 2025.
Yes — 6 widely-followed marquee investors appear among the top 25 institutional holders of MESA, including SUSQUEHANNA INTERNATIONAL GROUP, LLP, RENAISSANCE TECHNOLOGIES LLC, CITADEL ADVISORS LLC, TWO SIGMA INVESTMENTS, LP, TWO SIGMA ADVISERS, LP.
Our composite Smart Money Score for MESA is 68 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
5 institutions opened new positions in MESA during Q3 2025, while 6 fully exited. 24 added to existing positions and 3 trimmed.
MESA institutional ownership rose by 0.42 percentage points quarter-over-quarter, with a net change of -1 holders.
The top 10 institutions account for 97.8% of all reported 13F value in MESA, and the top 25 account for 100.0%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Mesa Air Group, Inc. (MESA) Institutional Ownership