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IPG Photonics stock timeline
A year of the price with every insider trade, planned sale, earnings report and material 8-K marked
252 sessions−27.2% to $65.31
IPG Photonics (IPGP) stock fell 27% over the last 252 sessions, to $65.31. On the way it reported 4 quarters, its insiders filed 4 open-market trades and 8 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 3, 2026 | Earnings | Earnings: beat the EPS estimate by 24.1% | +2.0% (+1.7% vs SPY) | — | — |
| Oct 2, 2026 | Form 144 | Form 144: Eugene A Scherbakov plans to sell $650K | +0.5% (−0.3% vs SPY) | −7.3% (−8.6% vs SPY) | −14.2% (−13.1% vs SPY) |
| Oct 2, 2026 | Form 144 | Form 144: IP Fibre Devices Ltd plans to sell $11.6M | +0.5% (−0.3% vs SPY) | −7.3% (−8.6% vs SPY) | −14.2% (−13.1% vs SPY) |
| Sep 22, 2026 | Form 144 | Form 144: Valentin Gapontsev Trust II plans to sell $909K | +0.6% (+0.6% vs SPY) | −0.7% (+0.4% vs SPY) | −7.0% (−6.4% vs SPY) |
| Sep 8, 2026 | 8-K | Material definitive agreement | +0.9% (+1.4% vs SPY) | −5.7% (−4.6% vs SPY) | +1.7% (0.0% vs SPY) |
| Aug 26, 2026 | Insider buy | Peeler John R bought $199K | +3.4% (+3.4% vs SPY) | +4.7% (+5.3% vs SPY) | +7.6% (+7.2% vs SPY) |
| Aug 4, 2026 | Earnings | Earnings: beat the EPS estimate by 49.3% | +7.6% (+5.8% vs SPY) | −2.7% (−4.7% vs SPY) | −14.8% (−15.4% vs SPY) |
| Jul 17, 2026 | 8-K | Material definitive agreement | +0.9% (+1.9% vs SPY) | −6.9% (−5.2% vs SPY) | −18.7% (−22.0% vs SPY) |
| Jun 29, 2026 | Form 144 | Form 144: Eugene A Scherbakov plans to sell $464K | +3.4% (+1.8% vs SPY) | −2.3% (−5.4% vs SPY) | −24.4% (−26.0% vs SPY) |
| Jun 29, 2026 | Form 144 | Form 144: IP Fibre Devices Ltd plans to sell $20.4M | +3.4% (+1.8% vs SPY) | −2.3% (−5.4% vs SPY) | −24.4% (−26.0% vs SPY) |
| Jun 29, 2026 | Form 144 | Form 144: Angelo P Lopresti plans to sell $331K | +3.4% (+1.8% vs SPY) | −2.3% (−5.4% vs SPY) | −24.4% (−26.0% vs SPY) |
| Jun 22, 2026 | Form 144 | Form 144: Tang Agnes plans to sell $178K | 0.0% (+0.3% vs SPY) | −9.6% (−7.2% vs SPY) | −13.8% (−14.0% vs SPY) |
| Jun 22, 2026 | Form 144 | Form 144: Valentin Gapontsev Trust II plans to sell $1.5M | 0.0% (+0.3% vs SPY) | −9.6% (−7.2% vs SPY) | −13.8% (−14.0% vs SPY) |
| May 22, 2026 | Insider sale | Mammen Timothy PV sold $1.2M | −1.3% (−1.7% vs SPY) | −5.1% (−6.9% vs SPY) | −11.3% (−10.3% vs SPY) |
| May 14, 2026 | Insider sale | Desmond Jeanmarie F. sold $178K | −1.4% (−2.2% vs SPY) | +12.6% (+12.7% vs SPY) | +7.3% (+7.3% vs SPY) |
| May 5, 2026 | Earnings | Earnings: missed the EPS estimate by -6.9% | −29.8% (−30.6% vs SPY) | −16.7% (−19.7% vs SPY) | −0.6% (−5.5% vs SPY) |
| Mar 17, 2026 | Insider sale | Buttarazzi Mary E. sold $58K | +0.7% (+0.4% vs SPY) | +3.8% (+5.6% vs SPY) | +5.6% (+0.8% vs SPY) |
| Feb 12, 2026 | Earnings | Earnings: beat the EPS estimate by 85.2% | +30.4% (+31.9% vs SPY) | +15.9% (+17.0% vs SPY) | +0.1% (+4.5% vs SPY) |
Insiders’ record here
In the year on the chart, IPG Photonics' insiders reported 1 open-market buy ($199K) and 3 sales ($1.4M). Of the 3 old enough to score, 3 were followed by the stock doing what the trade implied over the next 63 sessions (beating SPY after a buy, lagging it after a sale); the median excess return after a buy was — and after a sale −22.1%.
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 |
|---|---|---|---|---|---|
| 1.01 Material definitive agreement | 23,525 | 0.0% | 51% | +1.0% | ±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 → IPG Photonics: 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.