Mesa Air Group, Inc. (MESA)
MESA moved a median of -0.01% 30 minutes after news, and +0.86% by the close. How MESA actually reacts to news — the realized, point-in-time move the market made, measured across 230 labeled events over the last three years with zero look-ahead.
MESA’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 41% | 143 |
| 30-min | -0.01% | 46% | 147 |
| 60-min | 0.00% | 48% | 147 |
| to close | +0.86% | 56% | 146 |
| Middle 50% of MESA reactions | -1.30% to +1.83% |
|---|---|
| Median reaction (30-min) | -0.01% |
| Measured reactions | 230 |
Half of all Mesa Air Group, Inc. news events land between -1.30% and +1.83% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
Email me when MESA moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to MESA's baseline. Nothing else.
Recent MESA events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form 10-Q REPUBLIC AIRWAYS HOLDING For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | — | — | |
| Form 8-K REPUBLIC AIRWAYS HOLDING For: Jul 30 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form 8-K REPUBLIC AIRWAYS HOLDING For: Jun 11 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form 8-K/A REPUBLIC AIRWAYS HOLDING For: Apr 22 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form 8-K REPUBLIC AIRWAYS HOLDING For: May 21 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form 10-Q REPUBLIC AIRWAYS HOLDING For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | — | — | |
| Form 8-K REPUBLIC AIRWAYS HOLDING For: Apr 29 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form 8-K REPUBLIC AIRWAYS HOLDING For: Apr 22 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form ARS REPUBLIC AIRWAYS HOLDING For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | — | — | |
| Form DEF 14A REPUBLIC AIRWAYS HOLDING For: May 21 | SEC filing · Form DEF | SEC EDGAR | — | — | |
| Form DEFA14A REPUBLIC AIRWAYS HOLDING | SEC filing · Form DEFA14A | SEC EDGAR | — | — | |
| Form 10-K REPUBLIC AIRWAYS HOLDING For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | — | — | |
| Form S-8 REPUBLIC AIRWAYS HOLDING | SEC filing · Form S-8 | SEC EDGAR | — | — | |
| Form 8-K REPUBLIC AIRWAYS HOLDING For: Mar 04 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form 8-K REPUBLIC AIRWAYS HOLDING For: Feb 05 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form 8-K/A REPUBLIC AIRWAYS HOLDING For: Nov 24 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form 8-K REPUBLIC AIRWAYS HOLDING For: Dec 15 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form D REPUBLIC AIRWAYS HOLDING | SEC filing · Form D | SEC EDGAR | — | — | |
| Form 8-K REPUBLIC AIRWAYS HOLDING For: Nov 24 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form 8-K MESA AIR GROUP INC For: Nov 21 | SEC filing · Form 8-K | SEC EDGAR | +2.93% | +2.93% | |
| Form 10-KT MESA AIR GROUP INC For: Dec 31 | SEC filing · Form 10-KT | SEC EDGAR | -2.67% | -7.33% | |
| Form 10-Q MESA AIR GROUP INC For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | -2.67% | -7.33% | |
| Form 8-K MESA AIR GROUP INC For: Nov 21 | SEC filing · Form 8-K | SEC EDGAR | -2.67% | -7.33% | |
| Mesa Air Group Reports Results for the Three and Nine Months Ended September 30, 2025 | Press release | GlobeNewswire | -2.67% | -7.33% | |
| Form 8-K MESA AIR GROUP INC For: Nov 17 | SEC filing · Form 8-K | SEC EDGAR | -1.51% | -3.68% | |
| Mesa Air Group Shareholders Approve Merger with Republic Airways | Press release | GlobeNewswire | +0.00% | -3.03% | |
| Form NT 10-Q MESA AIR GROUP INC For: Sep 30 | SEC filing · Form NT | SEC EDGAR | +3.73% | +3.73% | |
| Form 8-K MESA AIR GROUP INC For: Oct 31 | SEC filing · Form 8-K | SEC EDGAR | +0.22% | -4.32% | |
| Mesa Air Group enters into an Amendment to its Loan Agreement with the United States Treasury and Provides Update to its Pending Merger with Republic Airways | Press release | GlobeNewswire | -2.86% | -0.71% | |
| Form 8-K MESA AIR GROUP INC For: Oct 28 | SEC filing · Form 8-K | SEC EDGAR | -2.86% | -0.71% | |
| Form 8-K MESA AIR GROUP INC For: Oct 01 | SEC filing · Form 8-K | SEC EDGAR | +0.01% | +2.34% | |
| Form EFFECT MESA AIR GROUP INC | SEC filing · Form EFFECT | SEC EDGAR | +0.79% | +1.57% | |
| Form 8-K MESA AIR GROUP INC For: Sep 24 | SEC filing · Form 8-K | SEC EDGAR | -0.09% | +0.00% | |
| Form S-4/A MESA AIR GROUP INC | SEC filing · Form S-4 | SEC EDGAR | -2.26% | -2.26% | |
| Form S-4/A MESA AIR GROUP INC | SEC filing · Form S-4 | SEC EDGAR | +3.64% | +0.73% | |
| Form S-4/A MESA AIR GROUP INC | SEC filing · Form S-4 | SEC EDGAR | +0.00% | +0.00% | |
| Form 10-Q MESA AIR GROUP INC For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.00% | +2.75% | |
| Form 8-K MESA AIR GROUP INC For: Aug 13 | SEC filing · Form 8-K | SEC EDGAR | -0.11% | +1.85% | |
| Mesa Air Group Reports Third Quarter Fiscal 2025 Results and Provides Update on Proposed Merger with Republic Airways Holdings Inc. | Press release | GlobeNewswire | -0.11% | +1.85% | |
| Form 8-K/A MESA AIR GROUP INC For: Jul 24 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +0.86% | |
| Form 8-K MESA AIR GROUP INC For: Jul 23 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +0.86% | |
| Mesa Air Group Files Registration Statement on Form S-4 and S-1 in Connection with Proposed Merger with Republic Airways Holdings Inc. | Press release | GlobeNewswire | -2.56% | +0.85% | |
| Form 10-K/A MESA AIR GROUP INC For: Sep 30 | SEC filing · Form 10-K | SEC EDGAR | -0.49% | +2.00% | |
| Form S-4 MESA AIR GROUP INC | SEC filing · Form S-4 | SEC EDGAR | -0.49% | +2.00% | |
| Form 10-Q MESA AIR GROUP INC For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +2.91% | +0.00% | |
| Form 8-K MESA AIR GROUP INC For: May 19 | SEC filing · Form 8-K | SEC EDGAR | +2.91% | +0.00% | |
| Form 8-K MESA AIR GROUP INC For: May 20 | SEC filing · Form 8-K | SEC EDGAR | +2.91% | +0.00% | |
| Mesa Air Group Reports Second Quarter Fiscal 2025 Results | Press release | GlobeNewswire | +2.91% | +0.00% | |
| Form 10-Q MESA AIR GROUP INC For: Dec 31 | SEC filing · Form 10-Q | SEC EDGAR | +1.00% | +0.98% | |
| Mesa Air Group Reports First Quarter Fiscal 2025 Results | Press release | GlobeNewswire | +1.00% | +0.98% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the MESA section they belong to.
Where else MESA is measured.
MESA earnings → · Analyst actions → · SEC filings →
Other Industrials names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Graham Corporation (GHM) | 231 | -0.29% | 37% |
| Luxfer Holdings PLC Ordinary Shares (LXFR) | 230 | +0.09% | 57% |
| TELEPERFORMANCE UNSP/ADR (TLPFY) | 229 | -0.01% | 47% |
| Eastern Company (The) (EML) | 228 | -0.09% | 27% |
Same sector, same measurement: percent move vs. the price at the news timestamp, read at 30 minutes. Sample sizes differ, so the medians are comparable but the confidence behind them is not.
All Industrials names, measured the same way →
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How the numbers are made.
How is Mesa Air Group, Inc.'s median reaction calculated?
Every labeled MESA news event is measured from its own timestamp: the last trade before the news is the base price, and the move is read at fixed horizons — 30 minutes of trading, then the close. The median across 230 events is what this page reports. Point-in-time, zero look-ahead: no event borrows information from a later one.
What counts as a positive reaction?
Any event whose price move is above zero at the horizon, relative to the last trade before the news timestamp. 46% of MESA's measured events are up at 30 minutes; the rest close the window flat or negative.
How often is this page updated?
The news table refreshes automatically as new events are labeled and priced. The reaction medians are re-pulled in batches from the dataset — the figures here are as of 2026-09-21.
Does MESA's past reaction predict its next one?
No. These are realized facts about past events, not forecasts. They describe a distribution — they say nothing certain about any future move.