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Quanex Building Products stock timeline
A year of the price with every insider trade, planned sale, earnings report and material 8-K marked
252 sessions+61.9% to $20.70
Quanex Building Products (NX) stock rose 62% over the last 252 sessions, to $20.70. On the way it reported 0 quarters, its insiders filed 2 open-market trades and 1 Form 144 notice of planned sales, 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 |
|---|---|---|---|---|---|
| Nov 2, 2026 | Form 144 | Form 144: Paul Cornett plans to sell $114K | +5.1% (+5.6% vs SPY) | +0.1% (+2.9% vs SPY) | — |
| Jan 16, 2026 | 8-K | Change in auditor | −2.4% (−0.4% vs SPY) | −0.8% (−1.0% vs SPY) | +16.5% (+17.3% vs SPY) |
| Dec 17, 2025 | Insider sale | Teleios Global Opportunities Master Fund, Ltd. sold $1.9M | −2.2% (−1.1% vs SPY) | −7.0% (−8.6% vs SPY) | +14.2% (+12.1% vs SPY) |
| Dec 16, 2025 | Insider sale | Teleios Global Opportunities Master Fund, Ltd. sold $1.3M | +1.0% (+1.3% vs SPY) | −5.4% (−6.2% vs SPY) | +14.5% (+12.5% vs SPY) |
Insiders’ record here
In the year on the chart, Quanex Building Products' insiders reported 0 open-market buys ($0) and 2 sales ($3.2M). Of the 2 old enough to score, 0 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 +6.2%.
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 |
|---|---|---|---|---|---|
| 4.01 Change in auditor | 538 | 0.0% | 49% | −0.1% | ±1.7% |
Across every company in the move-odds universe, measured from the close before the filing. Every 8-K item ranked →
Quanex Building Products: 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.