Rapid Micro Biosystems, Inc. - Class A (RPID)
RPID moved a median of -0.51% 30 minutes after news, and 0.00% by the close. How RPID actually reacts to news — the realized, point-in-time move the market made, measured across 218 labeled events over the last three years with zero look-ahead.
RPID’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 32% | 196 |
| 30-min | -0.51% | 36% | 209 |
| 60-min | -1.16% | 31% | 211 |
| to close | 0.00% | 44% | 214 |
| Middle 50% of RPID reactions | -2.46% to +0.92% |
|---|---|
| Median reaction (30-min) | -0.51% |
| Measured reactions | 218 |
Half of all Rapid Micro Biosystems, Inc. - Class A news events land between -2.46% and +0.92% 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 RPID moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to RPID's baseline. Nothing else.
Recent RPID events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Rapid Micro Biosystems to Participate at the PDA Pharmaceutical Microbiology Conference 2026 | Press release | GlobeNewswire | — | — | |
| Getting the Story Right Shouldn't Take Three Months. Meet Slugline. | Press release | PR Web | — | -3.59% | |
| Rapid Micro Biosystems to Participate in Upcoming Investor Conferences | Press release | GlobeNewswire | -5.64% | -8.27% | |
| Form 10-Q RAPID MICRO BIOSYSTEMS, For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | -5.00% | -13.50% | |
| Form 8-K RAPID MICRO BIOSYSTEMS, For: Aug 07 | SEC filing · Form 8-K | SEC EDGAR | -5.00% | -13.50% | |
| Rapid Micro Biosystems Reports Second Quarter 2026 Financial Results | Press release | GlobeNewswire | -5.00% | -13.50% | |
| Rapid Micro Biosystems Announces Inducement Grants Under Nasdaq Listing Rule 5635(c)(4) | Press release | GlobeNewswire | +0.00% | +0.00% | |
| Rapid Micro Biosystems to Announce Second Quarter 2026 Financial Results on August 7, 2026 | Press release | GlobeNewswire | +0.00% | -0.50% | |
| Rapid Micro Biosystems Announces Inducement Grant Under Nasdaq Listing Rule 5635(c)(4) | Press release | GlobeNewswire | +5.91% | +1.07% | |
| Form SD RAPID MICRO BIOSYSTEMS, | SEC filing · Form SD | SEC EDGAR | -0.99% | -1.99% | |
| Form 8-K RAPID MICRO BIOSYSTEMS, For: May 21 | SEC filing · Form 8-K | SEC EDGAR | +0.24% | -1.47% | |
| Form 8-K RAPID MICRO BIOSYSTEMS, For: May 18 | SEC filing · Form 8-K | SEC EDGAR | +2.75% | +0.50% | |
| Rapid Micro Biosystems Announces Pricing of Up to Approximately $32 Million Underwritten Offering | Press release | GlobeNewswire | -3.27% | -0.50% | |
| Form 10-Q RAPID MICRO BIOSYSTEMS, For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +3.49% | -9.61% | |
| Form 8-K RAPID MICRO BIOSYSTEMS, For: May 13 | SEC filing · Form 8-K | SEC EDGAR | -3.89% | -4.92% | |
| Rapid Micro Biosystems Reports First Quarter 2026 Financial Results | Press release | GlobeNewswire | -3.89% | -4.92% | |
| Rapid Micro Biosystems to Announce First Quarter 2026 Financial Results on May 13, 2026 | Press release | GlobeNewswire | +0.00% | +1.99% | |
| Form ARS RAPID MICRO BIOSYSTEMS, For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +3.67% | -6.20% | |
| Form DEF 14A RAPID MICRO BIOSYSTEMS, For: May 21 | SEC filing · Form DEF | SEC EDGAR | +3.67% | -6.20% | |
| Form DEFA14A RAPID MICRO BIOSYSTEMS, | SEC filing · Form DEFA14A | SEC EDGAR | +3.67% | -6.20% | |
| Form 8-K RAPID MICRO BIOSYSTEMS, For: Mar 23 | SEC filing · Form 8-K | SEC EDGAR | -1.28% | +0.45% | |
| Form 10-K RAPID MICRO BIOSYSTEMS, For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | -7.91% | -20.06% | |
| Form 8-K RAPID MICRO BIOSYSTEMS, For: Mar 12 | SEC filing · Form 8-K | SEC EDGAR | -1.21% | -3.52% | |
| Form S-8 RAPID MICRO BIOSYSTEMS, | SEC filing · Form S-8 | SEC EDGAR | -7.91% | -20.06% | |
| Rapid Micro Biosystems Announces Follow-on Multi-System Order from Samsung Biologics to Expand Deployment of Growth Direct® Platform | Press release | GlobeNewswire | -1.21% | -3.52% | |
| Rapid Micro Biosystems Reports Record Fourth Quarter and Full Year 2025 Financial Results and Provides 2026 Guidance | Press release | GlobeNewswire | -1.21% | -3.52% | |
| Rapid Micro Biosystems to Participate in KeyBanc Capital Markets Healthcare Forum | Press release | GlobeNewswire | -1.45% | +5.54% | |
| Rapid Micro Biosystems to Present at TD Cowen 46th Annual Health Care Conference | Press release | GlobeNewswire | -1.57% | -2.92% | |
| Rapid Micro Biosystems to Announce Fourth Quarter and Full Year 2025 Financial Results on March 12, 2026 | Press release | GlobeNewswire | +0.00% | +6.29% | |
| Rapid Micro Biosystems Announces Inducement Grants Under Nasdaq Listing Rule 5635(c)(4) | Press release | GlobeNewswire | -2.36% | +2.63% | |
| Form 8-K RAPID MICRO BIOSYSTEMS, For: Jan 13 | SEC filing · Form 8-K | SEC EDGAR | -0.66% | +21.45% | |
| Rapid Micro Biosystems Announces Record Preliminary Unaudited Fourth Quarter and Full Year 2025 Revenue | Press release | GlobeNewswire | -0.66% | +21.45% | |
| Rapid Micro Biosystems to Present at 44th Annual J.P. Morgan Healthcare Conference | Press release | GlobeNewswire | +0.88% | -1.76% | |
| Form 10-Q RAPID MICRO BIOSYSTEMS, For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | +3.19% | +3.51% | |
| Form 8-K RAPID MICRO BIOSYSTEMS, For: Nov 07 | SEC filing · Form 8-K | SEC EDGAR | +0.33% | +1.31% | |
| Rapid Micro Biosystems Reports Third Quarter 2025 Financial Results; Announces Record Multi-System Customer Order and Raises Full-Year Revenue and System Placement Guidance | Press release | GlobeNewswire | +0.33% | +1.31% | |
| Rapid Micro Biosystems to Participate in the Stifel 2025 Healthcare Conference | Press release | GlobeNewswire | -2.70% | +3.10% | |
| Rapid Micro Biosystems to Announce Third Quarter 2025 Financial Results on November 7, 2025 | Press release | GlobeNewswire | -0.34% | -1.38% | |
| Rapid Micro Biosystems to Present at the H.C. Wainwright 27th Annual Global Investment Conference | Press release | GlobeNewswire | +0.00% | +1.71% | |
| Form 10-Q RAPID MICRO BIOSYSTEMS, For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +6.54% | +11.92% | |
| Form 8-K RAPID MICRO BIOSYSTEMS, For: Aug 08 | SEC filing · Form 8-K | SEC EDGAR | +1.43% | — | |
| Rapid Micro Biosystems Enters into Five-Year, $45 Million Term Loan Facility with Trinity Capital Inc. | Press release | GlobeNewswire | +1.43% | — | |
| Rapid Micro Biosystems Reports Second Quarter 2025 Financial Results | Press release | GlobeNewswire | +1.43% | — | |
| Rapid Micro Biosystems to Announce Second Quarter 2025 Financial Results on August 12, 2025 | Press release | GlobeNewswire | +1.59% | +5.08% | |
| Form 8-K RAPID MICRO BIOSYSTEMS, For: Jun 17 | SEC filing · Form 8-K | SEC EDGAR | +0.29% | -9.80% | |
| Rapid Micro Biosystems Announces Inducement Grants Under Nasdaq Listing Rule 5635(c)(4) | Press release | GlobeNewswire | +0.00% | -2.23% | |
| Form SD RAPID MICRO BIOSYSTEMS, | SEC filing · Form SD | SEC EDGAR | +0.00% | +3.06% | |
| Rapid Micro Biosystems Announces Appointment of Dr. Dafni Bika to Board of Directors | Press release | GlobeNewswire | +0.00% | +7.58% | |
| Form 8-K RAPID MICRO BIOSYSTEMS, For: May 22 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +7.58% | |
| Form 10-Q RAPID MICRO BIOSYSTEMS, For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +3.67% | -2.67% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the RPID section they belong to.
Where else RPID is measured.
RPID earnings → · Analyst actions → · SEC filings →
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How the numbers are made.
How is Rapid Micro Biosystems, Inc. - Class A's median reaction calculated?
Every labeled RPID 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 218 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. 36% of RPID'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 RPID'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.