Mayville Engineering Company, Inc. (MEC)
MEC moved a median of -0.23% 30 minutes after news, and +0.77% by the close. How MEC actually reacts to news — the realized, point-in-time move the market made, measured across 195 labeled events over the last three years with zero look-ahead.
MEC’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 45% | 193 |
| 30-min | -0.23% | 46% | 195 |
| 60-min | +0.02% | 50% | 195 |
| to close | +0.77% | 62% | 192 |
| Middle 50% of MEC reactions | -0.93% to +0.58% |
|---|---|
| Median reaction (30-min) | -0.23% |
| Measured reactions | 195 |
Half of all Mayville Engineering Company, Inc. news events land between -0.93% and +0.58% 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 MEC moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to MEC's baseline. Nothing else.
Recent MEC events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Mayville Engineering Company Announces Strategic Footprint Expansion in the Southeastern U.S. | Press release | Business Wire | +0.83% | +3.63% | |
| Form 10-Q Mayville Engineering For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +1.29% | -1.04% | |
| Form 8-K Mayville Engineering For: Aug 04 | SEC filing · Form 8-K | SEC EDGAR | +0.31% | -1.92% | |
| Mayville Engineering Company Announces Second Quarter 2026 Results | Press release | Business Wire | +0.31% | -1.92% | |
| Mayville Engineering Company Announces Second Quarter 2026 Results Conference Call and Webcast Date | Press release | Business Wire | -1.44% | +1.60% | |
| Form 11-K Mayville Engineering For: Dec 31 | SEC filing · Form 11-K | SEC EDGAR | +0.06% | -2.53% | |
| Mayville Engineering Company Named Number One Fabricator for Sixteenth Consecutive Year | Press release | Business Wire | +0.03% | +5.24% | |
| Form 8-K Mayville Engineering For: May 19 | SEC filing · Form 8-K | SEC EDGAR | -5.05% | -3.54% | |
| Mayville Engineering Company Announces Closing of Public Offering, Including Full Exercise of the Underwriters’ Option to Purchase Additional Shares of Common Stock | Press release | Business Wire | -0.60% | +8.71% | |
| Mayville Engineering Company Announces Pricing of $86.9 Million Underwritten Public Offering of Common Stock | Press release | Business Wire | -0.11% | +8.86% | |
| Mayville Engineering Company Announces Proposed Public Offering of Common Stock | Press release | Business Wire | -0.11% | +8.86% | |
| Form 10-Q Mayville Engineering For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | -0.63% | +8.29% | |
| Form 8-K Mayville Engineering For: May 05 | SEC filing · Form 8-K | SEC EDGAR | -5.04% | -0.77% | |
| Mayville Engineering Company Announces First Quarter 2026 Results | Press release | Business Wire | -5.04% | -0.77% | |
| Form 8-K Mayville Engineering For: Apr 21 | SEC filing · Form 8-K | SEC EDGAR | -0.33% | +3.19% | |
| Mayville Engineering Company Announces First Quarter 2026 Results Conference Call and Webcast Date | Press release | Business Wire | -1.30% | -0.88% | |
| Form ARS Mayville Engineering For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +1.64% | -5.44% | |
| Form DEF 14A Mayville Engineering For: Apr 21 | SEC filing · Form DEF | SEC EDGAR | +1.64% | -5.44% | |
| Form 10-K Mayville Engineering For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | -1.94% | -9.51% | |
| Form 8-K Mayville Engineering For: Mar 03 | SEC filing · Form 8-K | SEC EDGAR | +0.27% | +5.16% | |
| Mayville Engineering Company Announces Fourth Quarter and Full-Year 2025 Results | Press release | Business Wire | +0.27% | +5.16% | |
| Form 8-K Mayville Engineering For: Feb 25 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -0.71% | |
| Mayville Engineering Company Announces Fourth Quarter and Full Year 2025 Results Conference Call and Webcast Date | Press release | Business Wire | +0.00% | +2.27% | |
| Form 10-Q Mayville Engineering For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | -0.98% | +5.70% | |
| Form 8-K Mayville Engineering For: Nov 04 | SEC filing · Form 8-K | SEC EDGAR | -8.63% | -15.11% | |
| Mayville Engineering Company Announces Third Quarter 2025 Results | Press release | Business Wire | -8.63% | -15.11% | |
| Mayville Engineering Company Announces Third Quarter 2025 Results Conference Call and Webcast Date | Press release | Business Wire | +0.00% | +0.30% | |
| Form 8-K/A Mayville Engineering For: Jul 01 | SEC filing · Form 8-K | SEC EDGAR | +0.37% | -0.50% | |
| Form 10-Q Mayville Engineering For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | -1.33% | +2.95% | |
| Form 8-K Mayville Engineering For: Aug 05 | SEC filing · Form 8-K | SEC EDGAR | -8.25% | +6.08% | |
| Mayville Engineering Company Announces Second Quarter 2025 Results | Press release | Business Wire | -8.25% | +6.08% | |
| Form 8-K Mayville Engineering For: Jul 24 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +0.63% | |
| Mayville Engineering Company Elects Tania Wingfield to Board of Directors | Press release | Business Wire | +0.00% | +0.63% | |
| Mayville Engineering Company Announces Second Quarter 2025 Results Conference Call and Webcast Date | Press release | Business Wire | -0.19% | +0.06% | |
| Form 8-K Mayville Engineering For: Jul 01 | SEC filing · Form 8-K | SEC EDGAR | +2.02% | +2.76% | |
| Mayville Engineering Company Completes Acquisition of Accu-Fab, LLC | Press release | Business Wire | +2.02% | +2.76% | |
| Form 8-K Mayville Engineering For: Jun 26 | SEC filing · Form 8-K | SEC EDGAR | +0.43% | -1.42% | |
| Form 11-K Mayville Engineering For: Dec 31 | SEC filing · Form 11-K | SEC EDGAR | +0.22% | -0.37% | |
| Mayville Engineering Company Named Number One Fabricator for Fifteenth Consecutive Year | Press release | Business Wire | +0.00% | -1.39% | |
| Form 8-K Mayville Engineering For: May 23 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -0.76% | |
| Mayville Engineering Company Announces Definitive Agreement to Acquire Accu-Fab, LLC | Press release | Business Wire | +0.44% | +2.18% | |
| Mayville Engineering Company Statement on Tornado Damage at Manufacturing Facility | Press release | Business Wire | +0.84% | -0.58% | |
| Form 10-Q Mayville Engineering For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +0.00% | +9.87% | |
| Form 8-K Mayville Engineering For: May 06 | SEC filing · Form 8-K | SEC EDGAR | +1.07% | -8.15% | |
| Mayville Engineering Company Announces First Quarter 2025 Results | Press release | Business Wire | +1.07% | -8.15% | |
| Form 8-K Mayville Engineering For: Apr 22 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +0.16% | |
| Mayville Engineering Company Announces First Quarter 2025 Results Conference Call and Webcast Date | Press release | Business Wire | +0.29% | +2.59% | |
| Form 8-K Mayville Engineering For: Mar 10 | SEC filing · Form 8-K | SEC EDGAR | +1.24% | -1.00% | |
| Form ARS Mayville Engineering For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | — | -0.14% | |
| Form DEF 14A Mayville Engineering For: Apr 22 | SEC filing · Form DEF | SEC EDGAR | -0.20% | -1.79% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the MEC section they belong to.
Where else MEC is measured.
MEC earnings → · Analyst actions → · SEC filings →
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How the numbers are made.
How is Mayville Engineering Company, Inc.'s median reaction calculated?
Every labeled MEC 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 195 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 MEC'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 MEC'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.