Comera Life Sciences Holdings, Inc. (CMRA)
CMRA moved a median of 0.00% 30 minutes after news, and +1.35% by the close. How CMRA actually reacts to news — the realized, point-in-time move the market made, measured across 82 labeled events over the last three years with zero look-ahead.
CMRA’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 8% | 74 |
| 30-min | 0.00% | 18% | 82 |
| 60-min | 0.00% | 18% | 82 |
| to close | +1.35% | 51% | 82 |
| Middle 50% of CMRA reactions | -1.61% to 0.00% |
|---|---|
| Median reaction (30-min) | 0.00% |
| Measured reactions | 82 |
Half of all Comera Life Sciences Holdings, Inc. news events land between -1.61% and +0.00% 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 CMRA moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to CMRA's baseline. Nothing else.
Recent CMRA events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form EFFECT Comera Life Sciences | SEC filing · Form EFFECT | SEC EDGAR | +0.00% | +12.71% | |
| Form 8-K Comera Life Sciences For: Feb 21 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +20.00% | |
| Form POS AM Comera Life Sciences | SEC filing · Form POS | SEC EDGAR | +0.00% | +20.00% | |
| Form S-8 POS Comera Life Sciences | SEC filing · Form S-8 | SEC EDGAR | +0.00% | +20.00% | |
| Form 8-K Comera Life Sciences For: Jan 26 | SEC filing · Form 8-K | SEC EDGAR | -21.85% | -30.32% | |
| Form D Comera Life Sciences | SEC filing · Form D | SEC EDGAR | +0.00% | -19.46% | |
| Comera Life Sciences Announces Bridge Financing and Exercise of Take Private Option | Press release | GlobeNewswire | +0.00% | +3.09% | |
| Form 8-K Comera Life Sciences For: Jan 02 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +6.99% | |
| Form 8-K Comera Life Sciences For: Jan 02 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +3.09% | |
| Form 8-K Comera Life Sciences For: Dec 29 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +1.82% | |
| Comera Life Sciences Announces Process Exploring Strategic Alternatives | Press release | GlobeNewswire | +5.53% | +17.65% | |
| Form 8-K Comera Life Sciences For: Dec 06 | SEC filing · Form 8-K | SEC EDGAR | +5.53% | +17.65% | |
| Form 8-K Comera Life Sciences For: Nov 15 | SEC filing · Form 8-K | SEC EDGAR | — | +41.67% | |
| Comera Life Sciences Appoints Dorothy Clarke to Board of Directors | Press release | GlobeNewswire | +0.00% | -7.44% | |
| Comera Life Sciences Reports Financial Results for Third Quarter 2023 and Recent Business Highlights | Press release | GlobeNewswire | — | -9.75% | |
| Form 10-Q Comera Life Sciences For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | -0.16% | -19.32% | |
| Form 8-K Comera Life Sciences For: Nov 09 | SEC filing · Form 8-K | SEC EDGAR | -0.16% | -19.32% | |
| Form 8-K Comera Life Sciences For: Oct 31 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -3.33% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the CMRA section they belong to.
Where else CMRA is measured.
CMRA earnings → · Analyst actions → · SEC filings →
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How the numbers are made.
How is Comera Life Sciences Holdings, Inc.'s median reaction calculated?
Every labeled CMRA 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 82 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. 18% of CMRA'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 CMRA'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.