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Coherent stock timeline
A year of the price with every insider trade, planned sale, earnings report and material 8-K marked
252 sessions+21.1% to $192.81
Coherent (COHR) stock rose 21% over the last 252 sessions, to $192.81. On the way it reported 4 quarters, its insiders filed 3 open-market trades and 9 Form 144 notices of planned sales, and the company filed 2 material 8-Ks. Each is marked on the price and listed with what the stock did next.
Each mark, and what followed
| Date | Kind | What | Next session | 5 sessions | 21 sessions |
|---|---|---|---|---|---|
| Nov 4, 2026 | Earnings | Earnings: beat the EPS estimate by 6.0% | −6.2% (−7.8% vs SPY) | — | — |
| Sep 11, 2026 | Form 144 | Form 144: Enrico Digirolamo plans to sell $1.6M | +4.1% (+3.2% vs SPY) | +1.0% (+0.3% vs SPY) | +6.4% (+3.5% vs SPY) |
| Sep 11, 2026 | Insider sale | Digirolomo Enrico sold $1.6M | +4.1% (+3.2% vs SPY) | +1.0% (+0.3% vs SPY) | +6.4% (+3.5% vs SPY) |
| Sep 9, 2026 | Form 144 | Form 144: Robert P Beard plans to sell $155K | +0.5% (+1.0% vs SPY) | −10.7% (−9.6% vs SPY) | +10.3% (+8.6% vs SPY) |
| Sep 9, 2026 | Insider sale | Beard Robert P sold $155K | +0.5% (+1.0% vs SPY) | −10.7% (−9.6% vs SPY) | +10.3% (+8.6% vs SPY) |
| Sep 2, 2026 | Form 144 | Form 144: Lisa Neal-Graves plans to sell $591K | −1.3% (−1.7% vs SPY) | +10.9% (+10.9% vs SPY) | +16.0% (+15.5% vs SPY) |
| Sep 2, 2026 | Insider sale | Neal-Graves Lisa sold $591K | −1.3% (−1.7% vs SPY) | +10.9% (+10.9% vs SPY) | +16.0% (+15.5% vs SPY) |
| Sep 1, 2026 | Form 144 | Form 144: Julie S Eng plans to sell $1.7M | −2.1% (−1.4% vs SPY) | +8.3% (+8.4% vs SPY) | +3.5% (+3.9% vs SPY) |
| Aug 31, 2026 | 8-K | Directors and officers: departures, appointments, pay | −0.5% (−0.2% vs SPY) | +1.0% (+0.8% vs SPY) | +4.6% (+5.0% vs SPY) |
| Aug 31, 2026 | Form 144 | Form 144: Enrico Digirolamo plans to sell $634K | −0.5% (−0.2% vs SPY) | +1.0% (+0.8% vs SPY) | +4.6% (+5.0% vs SPY) |
| Aug 31, 2026 | Form 144 | Form 144: Julie S Eng plans to sell $2.0M | −0.5% (−0.2% vs SPY) | +1.0% (+0.8% vs SPY) | +4.6% (+5.0% vs SPY) |
| Aug 31, 2026 | Form 144 | Form 144: Stephen Skaggs plans to sell $634K | −0.5% (−0.2% vs SPY) | +1.0% (+0.8% vs SPY) | +4.6% (+5.0% vs SPY) |
| Aug 18, 2026 | Form 144 | Form 144: Sherri Luther plans to sell $1.1M | −13.6% (−13.0% vs SPY) | −24.3% (−23.1% vs SPY) | −19.2% (−16.7% vs SPY) |
| Aug 12, 2026 | Earnings | Earnings: beat the EPS estimate by 7.6% | +7.9% (+7.7% vs SPY) | −7.0% (−6.6% vs SPY) | −11.4% (−9.7% vs SPY) |
| Jul 22, 2026 | Form 144 | Form 144: Sherri Luther plans to sell $317K | −1.6% (−1.5% vs SPY) | −26.5% (−25.5% vs SPY) | −9.8% (−12.6% vs SPY) |
| May 6, 2026 | Earnings | Earnings: beat the EPS estimate by 1.1% | +2.6% (+1.3% vs SPY) | +10.8% (+8.8% vs SPY) | +22.8% (+18.3% vs SPY) |
| Apr 28, 2026 | 8-K | Directors and officers: departures, appointments, pay | +0.3% (+0.3% vs SPY) | +9.9% (+8.3% vs SPY) | +21.5% (+15.7% vs SPY) |
| Feb 4, 2026 | Earnings | Earnings: beat the EPS estimate by 6.8% | −8.3% (−7.8% vs SPY) | −0.3% (−0.7% vs SPY) | +10.2% (+11.5% vs SPY) |
Insiders’ record here
In the year on the chart, Coherent's insiders reported 0 open-market buys ($0) and 3 sales ($2.4M).
Across the whole universe (19,782 scored trades), insider buys beat the market 46% of the time and sales were followed by a lagging stock 61% of the time; buys of $1M or more 39%. Every pattern →
What this kind of 8-K usually did
| Item | 8-Ks | Next session, median | Up next session | 21 sessions, median | Typical size |
|---|---|---|---|---|---|
| 5.02 Directors and officers: departures, appointments, pay | 39,174 | −0.1% | 48% | +0.7% | ±1.4% |
Across every company in the move-odds universe, measured from the close before the filing. Every 8-K item ranked →
Report card: every quarter against the estimate → Coherent: every quarter → Live insider trades →
Prices are daily closes; filings and trades are as filed with the SEC (Form 4 within two business days of the trade, 8-K within four of the event). Moves after a mark are the stock's close-to-close change and the same for SPY; they describe the record, not what the next one will do. Not investment advice.