Perrigo Company plc Ordinary Shares (PRGO)
PRGO moved a median of +0.04% 30 minutes after news, and +0.11% by the close. How PRGO actually reacts to news — the realized, point-in-time move the market made, measured across 916 labeled events over the last three years with zero look-ahead.
PRGO’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | -0.02% | 46% | 911 |
| 30-min | +0.04% | 50% | 912 |
| 60-min | -0.00% | 48% | 912 |
| to close | +0.11% | 53% | 905 |
| Middle 50% of PRGO reactions | -0.47% to +0.65% |
|---|---|
| Median reaction (30-min) | +0.04% |
| Measured reactions | 916 |
Half of all Perrigo Company plc Ordinary Shares news events land between -0.47% and +0.65% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How PRGO reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 20 | -0.27% | 30% | -0.65% |
| Analyst downgrades | 31 | -0.48% | 39% | -0.15% |
| Rating reiterations | 18 | -0.32% | 39% | -0.22% |
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. 3 further classes were observed with fewer than 10 measured events and are not published. See how PRGO ranks against every other measured name →
That’s how PRGO usually reacts — get an email when it moves on news →Email me when PRGO moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to PRGO's baseline. Nothing else.
Recent PRGO events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Perrigo to Attend the Barclays Global Consumer Conference | Press release | PR Newswire | -0.68% | -1.78% | |
| Form 10-Q PERRIGO Co plc For: Jun 27 | SEC filing · Form 10-Q | SEC EDGAR | -0.08% | +0.23% | |
| Form 8-K PERRIGO Co plc For: Aug 05 | SEC filing · Form 8-K | SEC EDGAR | +4.43% | +4.08% | |
| Perrigo Reports Second Quarter 2026 Financial Results From Continuing Operations | Press release | PR Newswire | +4.43% | +4.08% | |
| Perrigo Announces Quarterly Dividend | Press release | PR Newswire | -0.39% | -0.58% | |
| Perrigo to Present at the Canaccord 46th Annual Growth Conference | Press release | PR Newswire | +0.39% | +2.35% | |
| Perrigo to Release Second Quarter 2026 Financial Results on August 5, 2026 | Press release | PR Newswire | +0.42% | -1.13% | |
| Form 8-K PERRIGO Co plc For: Jun 29 | SEC filing · Form 8-K | SEC EDGAR | +0.88% | -1.41% | |
| Form 8-K/A PERRIGO Co plc For: Jun 07 | SEC filing · Form 8-K | SEC EDGAR | +0.88% | -1.41% | |
| Form 8-K PERRIGO Co plc For: Jun 30 | SEC filing · Form 8-K | SEC EDGAR | +0.76% | -1.81% | |
| Perrigo Announces Appointment of Two New Independent Directors to Board | Press release | PR Newswire | +0.76% | -1.81% | |
| Form 11-K PERRIGO Co plc For: Dec 31 | SEC filing · Form 11-K | SEC EDGAR | -0.05% | +0.67% | |
| Form SD PERRIGO Co plc | SEC filing · Form SD | SEC EDGAR | -0.09% | -0.54% | |
| Form 8-K PERRIGO Co plc For: Jun 07 | SEC filing · Form 8-K | SEC EDGAR | +0.04% | +1.64% | |
| Perrigo Announces Leadership Transition | Press release | PR Newswire | +0.04% | +1.64% | |
| Perrigo to Present at the Oppenheimer 26th Annual Consumer Growth & E-Commerce Conference | Press release | PR Newswire | -0.40% | -4.76% | |
| Form 10-Q PERRIGO Co plc For: Mar 28 | SEC filing · Form 10-Q | SEC EDGAR | -0.41% | -4.01% | |
| Form 8-K PERRIGO Co plc For: May 06 | SEC filing · Form 8-K | SEC EDGAR | -2.10% | -1.13% | |
| Perrigo Reports First Quarter 2026 Financial Results From Continuing Operations | Press release | PR Newswire | -2.10% | -1.13% | |
| Form 8-K PERRIGO Co plc For: Apr 30 | SEC filing · Form 8-K | SEC EDGAR | -2.10% | -1.13% | |
| Form S-8 PERRIGO Co plc | SEC filing · Form S-8 | SEC EDGAR | -2.10% | -1.13% | |
| Form S-8 POS PERRIGO Co plc | SEC filing · Form S-8 | SEC EDGAR | -2.10% | -1.13% | |
| Form 8-K PERRIGO Co plc For: Apr 30 | SEC filing · Form 8-K | SEC EDGAR | -0.17% | -0.33% | |
| Perrigo Completes Divestiture of Dermacosmetics Business | Press release | PR Newswire | -0.17% | -0.33% | |
| Perrigo Announces Quarterly Dividend | Press release | PR Newswire | +1.23% | -0.88% | |
| Form 8-K PERRIGO Co plc For: Apr 22 | SEC filing · Form 8-K | SEC EDGAR | -0.13% | -1.27% | |
| Perrigo to Release First Quarter 2026 Financial Results on May 6, 2026 | Press release | PR Newswire | +0.64% | +0.00% | |
| Form DEFA14A PERRIGO Co plc | SEC filing · Form DEFA14A | SEC EDGAR | -1.31% | -1.21% | |
| Form 8-K PERRIGO Co plc For: Mar 20 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +3.10% | |
| Form ARS PERRIGO Co plc For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | -0.37% | -2.43% | |
| Form DEF 14A PERRIGO Co plc For: Apr 30 | SEC filing · Form DEF | SEC EDGAR | -0.16% | -2.53% | |
| Form DEFA14A PERRIGO Co plc | SEC filing · Form DEFA14A | SEC EDGAR | -0.53% | -2.58% | |
| Perrigo to Present at the UBS Global Consumer and Retail Conference | Press release | PR Newswire | +0.97% | +2.63% | |
| Form 10-K PERRIGO Co plc For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | -0.68% | +1.03% | |
| Form 8-K PERRIGO Co plc For: Feb 26 | SEC filing · Form 8-K | SEC EDGAR | +0.53% | +7.09% | |
| Perrigo Reports Fourth Quarter and Fiscal Year 2025 Financial Results From Continuing Operations | Press release | PR Newswire | +0.53% | +7.09% | |
| Perrigo Announces Quarterly Dividend | Press release | PR Newswire | +1.64% | +1.85% | |
| Perrigo to Release Fourth Quarter and Fiscal Year 2025 Financial Results on February 26, 2026 | Press release | PR Newswire | +0.86% | +0.00% | |
| Perrigo Company plc Sued for Securities Law Violations - Contact the DJS Law Group to Discuss Your Rights - PRGO | Press release | PR Newswire | -0.57% | +1.82% | |
| Perrigo Company plc Sued for Securities Law Violations - Contact the DJS Law Group to Discuss Your Rights - PRGO | Press release | PR Newswire | +0.07% | -1.39% | |
| Immunology Drug Development Veteran Brian Wipke Joins Fannin Partners and Allterum Therapeutics | Press release | PR Web | -0.53% | -1.13% | |
| Perrigo Company plc Sued for Securities Law Violations - Contact the DJS Law Group to Discuss Your Rights - PRGO | Press release | PR Newswire | -0.36% | +0.72% | |
| Perrigo Company plc Sued for Securities Law Violations - Contact the DJS Law Group to Discuss Your Rights - PRGO | Press release | PR Newswire | +0.44% | -0.52% | |
| Perrigo Company plc Sued for Securities Law Violations - Contact the DJS Law Group to Discuss Your Rights - PRGO | Press release | PR Newswire | +0.07% | -1.51% | |
| Perrigo Company plc Sued for Securities Law Violations - Contact the DJS Law Group to Discuss Your Rights - PRGO | Press release | PR Newswire | -0.07% | -3.64% | |
| Perrigo Company plc Sued for Securities Law Violations - Contact the DJS Law Group to Discuss Your Rights – PRGO | Press release | GlobeNewswire | -0.07% | -3.64% | |
| Perrigo Company plc Sued for Securities Law Violations - Contact the DJS Law Group to Discuss Your Rights - PRGO | Press release | PR Newswire | +2.22% | +4.06% | |
| Perrigo Company plc Sued for Securities Law Violations - Contact the DJS Law Group to Discuss Your Rights – PRGO | Press release | GlobeNewswire | +2.22% | +4.06% | |
| Perrigo Company plc Sued for Securities Law Violations - Contact the DJS Law Group to Discuss Your Rights – PRGO | Press release | GlobeNewswire | -0.15% | +0.38% | |
| Perrigo Company plc Sued for Securities Law Violations - Contact the DJS Law Group to Discuss Your Rights – PRGO | Press release | Business Wire | +0.54% | +3.47% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the PRGO section they belong to.
Where else PRGO is measured.
PRGO earnings → · Analyst actions → · SEC filings →
Other Healthcare names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| HEALTH INSURANCE INNOVATIONS (HIIQ) | 919 | 0.00% | 46% |
| Nabriva Therapeutics plc - Ordinary Shares (NBRV) | 919 | -0.05% | 40% |
| PORTOLA PHARMACEUTICALS (PTLA) | 915 | -0.04% | 48% |
| Illumina, Inc. (ILMN) | 914 | +0.02% | 51% |
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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Every name we’ve measured, in one place.
How the numbers are made.
How is Perrigo Company plc Ordinary Shares's median reaction calculated?
Every labeled PRGO 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 916 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. 50% of PRGO'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 PRGO'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.