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OSI Systems stock timeline
A year of the price with every insider trade, planned sale, earnings report and material 8-K marked
252 sessions−30.4% to $196.36
OSI Systems (OSIS) stock fell 30% over the last 252 sessions, to $196.36. On the way it reported 4 quarters, its insiders filed 2 open-market trades, and the company filed 1 material 8-K. 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 |
|---|---|---|---|---|---|
| Oct 29, 2026 | Earnings | Earnings: beat the EPS estimate by 0.8% | +3.7% (+4.1% vs SPY) | +1.1% (+1.8% vs SPY) | — |
| Aug 20, 2026 | Earnings | Earnings: beat the EPS estimate by 0.1% | −1.3% (−0.5% vs SPY) | −4.6% (−4.2% vs SPY) | −11.1% (−10.4% vs SPY) |
| May 4, 2026 | Earnings | Earnings: beat the EPS estimate by 2.3% | +0.1% (+0.5% vs SPY) | −20.2% (−22.5% vs SPY) | −28.7% (−33.9% vs SPY) |
| Jan 29, 2026 | Earnings | Earnings: beat the EPS estimate by 2.3% | −0.6% (−0.4% vs SPY) | −7.0% (−5.6% vs SPY) | +5.0% (+6.4% vs SPY) |
| Nov 20, 2025 | 8-K | Material definitive agreement | +7.1% (+6.1% vs SPY) | +14.6% (+10.0% vs SPY) | +16.2% (+11.1% vs SPY) |
| Nov 7, 2025 | Insider sale | Morben Paul Keith sold $116K | +0.9% (+0.8% vs SPY) | −3.4% (−3.7% vs SPY) | −7.2% (−9.2% vs SPY) |
| Nov 7, 2025 | Insider sale | Hawkins James B sold $425K | +0.9% (+0.8% vs SPY) | −3.4% (−3.7% vs SPY) | −7.2% (−9.2% vs SPY) |
Insiders’ record here
In the year on the chart, OSI Systems' insiders reported 0 open-market buys ($0) and 2 sales ($541K). Of the 2 old enough to score, 2 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 −6.9%.
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% |
| 2.03 New debt or off-balance-sheet obligation | 13,268 | 0.0% | 50% | +1.2% | ±1.3% |
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 → OSI Systems: 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.