PerkinElmer, Inc. (PKI)
PKI moved a median of +0.11% 30 minutes after news, and +0.09% by the close. How PKI actually reacts to news — the realized, point-in-time move the market made, measured across 1,409 labeled events over its full measured history with zero look-ahead.
PKI’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | +0.05% | 56% | 1,249 |
| 30-min | +0.11% | 56% | 1,249 |
| 60-min | +0.08% | 53% | 1,249 |
| to close | +0.09% | 54% | 1,251 |
| Middle 50% of PKI reactions | -0.33% to +0.59% |
|---|---|
| Median reaction (30-min) | +0.11% |
| Measured reactions | 1,409 |
Half of all PerkinElmer, Inc. news events land between -0.33% and +0.59% 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 PKI moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to PKI's baseline. Nothing else.
Recent PKI events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form 10-Q REVVITY, INC. For: Jun 29 | SEC filing · Form 10-Q | SEC EDGAR | — | — | |
| Form 8-K REVVITY, INC. For: Jul 28 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form 11-K REVVITY, INC. For: Dec 31 | SEC filing · Form 11-K | SEC EDGAR | — | — | |
| Form SD REVVITY, INC. | SEC filing · Form SD | SEC EDGAR | — | — | |
| Form 10-Q REVVITY, INC. For: Mar 30 | SEC filing · Form 10-Q | SEC EDGAR | — | — | |
| Form 8-K REVVITY, INC. For: Apr 28 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form 8-K REVVITY, INC. For: Apr 22 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form ARS REVVITY, INC. For: Dec 29 | SEC filing · Form ARS | SEC EDGAR | — | — | |
| Form DEF 14A REVVITY, INC. For: Apr 22 | SEC filing · Form DEF | SEC EDGAR | — | — | |
| Form DEFA14A REVVITY, INC. | SEC filing · Form DEFA14A | SEC EDGAR | — | — | |
| Form S-3ASR REVVITY, INC. | SEC filing · Form S-3ASR | SEC EDGAR | — | — | |
| Form PRE 14A REVVITY, INC. For: Apr 22 | SEC filing · Form PRE | SEC EDGAR | — | — | |
| Form 10-K REVVITY, INC. For: Dec 29 | SEC filing · Form 10-K | SEC EDGAR | — | — | |
| Form 8-K REVVITY, INC. For: Jan 31 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form 8-K REVVITY, INC. For: Jan 12 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form 8-K REVVITY, INC. For: Jan 07 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form S-8 REVVITY, INC. | SEC filing · Form S-8 | SEC EDGAR | — | — | |
| Form 10-Q REVVITY, INC. For: Sep 29 | SEC filing · Form 10-Q | SEC EDGAR | — | — | |
| Form 8-K REVVITY, INC. For: Nov 04 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form 10-Q REVVITY, INC. For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | — | — | |
| Form 8-K REVVITY, INC. For: Jul 29 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form 11-K REVVITY, INC. For: Dec 31 | SEC filing · Form 11-K | SEC EDGAR | — | — | |
| Form SD REVVITY, INC. | SEC filing · Form SD | SEC EDGAR | — | — | |
| Form 10-Q REVVITY, INC. For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | — | — | |
| Form 8-K REVVITY, INC. For: Apr 29 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form 8-K REVVITY, INC. For: Apr 23 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form ARS REVVITY, INC. For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | — | — | |
| Form DEF 14A REVVITY, INC. For: Apr 23 | SEC filing · Form DEF | SEC EDGAR | — | — | |
| Form DEFA14A REVVITY, INC. | SEC filing · Form DEFA14A | SEC EDGAR | — | — | |
| Form 10-K REVVITY, INC. For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | — | — | |
| Form 8-K REVVITY, INC. For: Feb 01 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form 8-K REVVITY, INC. For: Jan 25 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form 8-K REVVITY, INC. For: Jan 09 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Star Mountain Capital adds former Carlyle Vice Chairman of Global Buyout & Operating Committee Member, Gregory Summe, as Senior Advisor | Press release | Business Wire | — | — | |
| Form 10-Q REVVITY, INC. For: Oct 01 | SEC filing · Form 10-Q | SEC EDGAR | — | — | |
| Form 8-K REVVITY, INC. For: Oct 30 | SEC filing · Form 8-K | SEC EDGAR | — | — |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the PKI section they belong to.
Where else PKI is measured.
PKI earnings → · Analyst actions → · SEC filings →
Other Healthcare names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Replimune Group, Inc. (REPL) | 1,432 | +0.09% | 51% |
| Altimmune, Inc. (ALT) | 1,424 | 0.00% | 48% |
| Zoetis Inc. Class A (ZTS) | 1,401 | +0.02% | 51% |
| Edwards Lifesciences Corporation (EW) | 1,398 | -0.01% | 49% |
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 PerkinElmer, Inc.'s median reaction calculated?
Every labeled PKI 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 1,409 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. 56% of PKI'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 PKI'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.