Repligen Corporation (RGEN)
RGEN moved a median of +0.15% 30 minutes after news, and +0.12% by the close. How RGEN actually reacts to news — the realized, point-in-time move the market made, measured across 301 labeled events over the last three years with zero look-ahead.
RGEN’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | -0.01% | 46% | 300 |
| 30-min | +0.15% | 55% | 301 |
| 60-min | +0.24% | 55% | 301 |
| to close | +0.12% | 54% | 298 |
| Middle 50% of RGEN reactions | -0.53% to +1.02% |
|---|---|
| Median reaction (30-min) | +0.15% |
| Measured reactions | 301 |
Half of all Repligen Corporation news events land between -0.53% and +1.02% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How RGEN reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 30 | +0.06% | 60% | +0.20% |
| Analyst downgrades | 12 | +0.61% | 83% | +0.21% |
| Coverage initiations | 32 | -0.22% | 34% | -0.53% |
| Rating reiterations | 72 | -0.19% | 36% | -0.48% |
| Price-target raises | 12 | -0.21% | 33% | -0.63% |
| Price-target cuts | 19 | -0.24% | 37% | +0.40% |
Last 3 years, pulled 2026-09-21. Reaction = percent move vs. the price at the news timestamp. Counts and medians only. The same measurement runs across every name in the dataset. See how RGEN ranks against every other measured name →
That’s how RGEN usually reacts — get an email when it moves on news →Email me when RGEN moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to RGEN's baseline. Nothing else.
Recent RGEN events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Repligen to Report Third Quarter 2026 Financial Results | Press release | GlobeNewswire | -0.30% | +1.69% | |
| Form 8-K REPLIGEN CORP For: Oct 06 | SEC filing · Form 8-K | SEC EDGAR | +1.09% | -8.88% | |
| Repligen Completes Acquisition of BioLife Solutions | Press release | GlobeNewswire | +1.09% | -8.88% | |
| Form 8-K REPLIGEN CORP For: Sep 10 | SEC filing · Form 8-K | SEC EDGAR | +1.14% | -1.14% | |
| Form 8-K REPLIGEN CORP For: Sep 03 | SEC filing · Form 8-K | SEC EDGAR | -0.54% | -2.06% | |
| Form EFFECT REPLIGEN CORP | SEC filing · Form EFFECT | SEC EDGAR | +0.16% | +0.29% | |
| Form S-4/A REPLIGEN CORP | SEC filing · Form S-4 | SEC EDGAR | -0.02% | +1.02% | |
| Repligen Corporation to Present at Wells Fargo 21st Annual Healthcare Conference | Press release | GlobeNewswire | -0.13% | +0.10% | |
| Form S-4 REPLIGEN CORP | SEC filing · Form S-4 | SEC EDGAR | -0.64% | +0.04% | |
| Form 10-Q REPLIGEN CORP For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | -0.99% | -0.05% | |
| Form 8-K REPLIGEN CORP For: Jul 28 | SEC filing · Form 8-K | SEC EDGAR | +2.69% | +4.04% | |
| Repligen Reports Second Quarter 2026 Financial Results and Updates Full Year 2026 Financial Guidance | Press release | GlobeNewswire | +2.69% | +4.04% | |
| Form 8-K REPLIGEN CORP For: Jul 21 | SEC filing · Form 8-K | SEC EDGAR | +7.84% | +6.32% | |
| Repligen to Acquire BioLife Solutions, Expanding Its Cell Therapy Capabilities with Market Leading Biopreservation Media | Press release | GlobeNewswire | +7.84% | +6.32% | |
| Repligen to Report Second Quarter 2026 Financial Results | Press release | GlobeNewswire | -0.12% | +0.25% | |
| Repligen Corporation to Present at William Blair 46th Annual Growth Stock Conference | Press release | GlobeNewswire | +0.71% | +1.37% | |
| Repligen Announces Publication of the Company’s 2025 Corporate Sustainability Report | Press release | GlobeNewswire | -3.67% | +2.51% | |
| Form 8-K REPLIGEN CORP For: May 14 | SEC filing · Form 8-K | SEC EDGAR | -0.58% | -1.52% | |
| Repligen Corporation to Present at Bank of America Securities 2026 Global Healthcare Conference | Press release | GlobeNewswire | -0.76% | -0.49% | |
| Form 10-Q REPLIGEN CORP For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | -0.76% | -0.49% | |
| Form 8-K REPLIGEN CORP For: May 05 | SEC filing · Form 8-K | SEC EDGAR | +4.07% | +4.14% | |
| Repligen Reports First Quarter 2026 Financial Results and Updates Full Year 2026 Financial Guidance | Press release | GlobeNewswire | +4.07% | +4.14% | |
| Form DEFA14A REPLIGEN CORP | SEC filing · Form DEFA14A | SEC EDGAR | +0.21% | -0.72% | |
| Repligen to Report First Quarter 2026 Financial Results | Press release | GlobeNewswire | +0.22% | -7.22% | |
| Repligen Opens European Training & Innovation Center in Breda, Expanding Global Customer Support Network | Press release | GlobeNewswire | -0.37% | -0.08% | |
| Form ARS REPLIGEN CORP For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | -0.08% | -0.24% | |
| Form DEF 14A REPLIGEN CORP For: May 14 | SEC filing · Form DEF | SEC EDGAR | -0.08% | -0.24% | |
| Form DEFA14A REPLIGEN CORP | SEC filing · Form DEFA14A | SEC EDGAR | -0.08% | -0.24% | |
| Repligen Corporation to Present at Upcoming March Conferences | Press release | GlobeNewswire | +0.90% | +0.83% | |
| Form 10-K REPLIGEN CORP For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | -0.04% | -3.00% | |
| Form 8-K REPLIGEN CORP For: Feb 24 | SEC filing · Form 8-K | SEC EDGAR | +5.05% | +10.13% | |
| Repligen Reports Fourth Quarter and Full Year 2025 Financial Results and Provides 2026 Financial Guidance | Press release | GlobeNewswire | +5.05% | +10.13% | |
| Repligen to Report Fourth Quarter and Full Year 2025 Financial Results | Press release | GlobeNewswire | -0.25% | -0.93% | |
| Form 8-K REPLIGEN CORP For: Jan 06 | SEC filing · Form 8-K | SEC EDGAR | +1.72% | +1.66% | |
| Repligen Executive Chair Tony Hunt to Retire; Dr. Martin D. Madaus Elected Chair | Press release | GlobeNewswire | +1.72% | +1.66% | |
| Repligen Corporation to Present at J.P. Morgan 2026 Healthcare Conference | Press release | GlobeNewswire | +0.31% | -1.50% | |
| Repligen Introduces Next-Generation Chromatography Resins to Advance New Modality Workflows | Press release | GlobeNewswire | -0.21% | -1.19% | |
| Repligen Corporation to Present at Evercore Healthcare Conference | Press release | GlobeNewswire | -0.20% | -0.37% | |
| Form 10-Q REPLIGEN CORP For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | -0.18% | -0.39% | |
| Repligen Corporation to Present at Upcoming November Conferences | Press release | GlobeNewswire | +0.41% | -1.43% | |
| Form 8-K REPLIGEN CORP For: Oct 28 | SEC filing · Form 8-K | SEC EDGAR | -2.01% | -8.14% | |
| Repligen Reports Third Quarter 2025 Financial Results and Updates Full Year 2025 Financial Guidance | Press release | GlobeNewswire | -2.01% | -8.14% | |
| Repligen to Report Third Quarter 2025 Financial Results | Press release | GlobeNewswire | +0.19% | +0.49% | |
| Form 8-K REPLIGEN CORP For: Sep 01 | SEC filing · Form 8-K | SEC EDGAR | +0.18% | -0.61% | |
| Repligen Corporation to Present at Upcoming September Conferences | Press release | GlobeNewswire | +0.06% | +3.23% | |
| Form 10-Q REPLIGEN CORP For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | -1.25% | -2.11% | |
| Repligen Announces Strategic Partnership with Novasign to Further Advance Bioprocessing Digitalization | Press release | GlobeNewswire | -0.48% | -3.73% | |
| Form 8-K REPLIGEN CORP For: Jul 29 | SEC filing · Form 8-K | SEC EDGAR | +1.29% | — | |
| Repligen Reports Second Quarter 2025 Financial Results and Updates Full Year 2025 Financial Guidance | Press release | GlobeNewswire | +1.29% | — | |
| Repligen to Report Second Quarter 2025 Financial Results | Press release | GlobeNewswire | +2.38% | +1.67% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the RGEN section they belong to.
Where else RGEN is measured.
RGEN earnings → · Analyst actions → · SEC filings →
Other Healthcare names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| The Cooper Companies, Inc. (COO) | 303 | -0.21% | 41% |
| PETVIVO HOLDINGS INC (PETV) | 302 | 0.00% | 40% |
| EIDOS THERAPEUTICS (EIDX) | 300 | +0.01% | 51% |
| Grifols, S.A. - American Depositary Shares (GRFS) | 300 | -0.13% | 39% |
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 Healthcare names, measured the same way →
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How the numbers are made.
How is Repligen Corporation's median reaction calculated?
Every labeled RGEN 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 301 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. 55% of RGEN'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 RGEN'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.