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MasterBrand stock timeline
A year of the price with every insider trade, planned sale, earnings report and material 8-K marked
252 sessions−39.3% to $6.72
MasterBrand (MBC) stock fell 39% over the last 252 sessions, to $6.72. On the way it reported 4 quarters, its insiders filed 8 open-market trades and 2 Form 144 notices of planned sales, and the company filed 5 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 5, 2026 | Earnings | Earnings: beat the EPS estimate by 233.3% | −5.9% (−1.4% vs SPY) | — | — |
| Oct 26, 2026 | 8-K | Directors and officers: departures, appointments, pay | −8.9% (−9.6% vs SPY) | −0.6% (0.0% vs SPY) | — |
| Sep 24, 2026 | 8-K | Directors and officers: departures, appointments, pay | −1.4% (−1.3% vs SPY) | −3.0% (−2.3% vs SPY) | +1.9% (+2.4% vs SPY) |
| Aug 25, 2026 | Form 144 | Form 144: Mark A Young plans to sell $55K | −2.9% (−3.3% vs SPY) | −12.2% (−12.7% vs SPY) | −25.7% (−26.5% vs SPY) |
| Aug 25, 2026 | Insider sale | Young Mark A. sold $55K | −2.9% (−3.3% vs SPY) | −12.2% (−12.7% vs SPY) | −25.7% (−26.5% vs SPY) |
| Aug 11, 2026 | Form 144 | Form 144: Kurt Wanninger plans to sell $461K | +1.8% (+2.1% vs SPY) | −0.8% (−0.7% vs SPY) | −15.0% (−13.6% vs SPY) |
| Aug 11, 2026 | Insider sale | Wanninger Kurt sold $461K | +1.8% (+2.1% vs SPY) | −0.8% (−0.7% vs SPY) | −15.0% (−13.6% vs SPY) |
| Aug 4, 2026 | Earnings | Earnings: missed the EPS estimate by -28.6% | +6.1% (+4.3% vs SPY) | +1.6% (−0.4% vs SPY) | −11.4% (−11.9% vs SPY) |
| Jun 11, 2026 | Insider buy | Fracassa Philip D. bought $46K | +4.3% (+2.6% vs SPY) | −2.1% (−4.2% vs SPY) | +0.1% (−3.4% vs SPY) |
| Jun 10, 2026 | Insider sale | Kendrick Bruce Alan sold $237K | +0.6% (+2.2% vs SPY) | +1.2% (−0.5% vs SPY) | +3.7% (+1.1% vs SPY) |
| Jun 8, 2026 | Insider buy | Petratis David D bought $102K | +1.4% (+1.2% vs SPY) | +4.9% (+4.3% vs SPY) | +2.2% (+0.9% vs SPY) |
| Jun 4, 2026 | Insider buy | Simon Andrea Helen bought $43K | −2.1% (−2.5% vs SPY) | +3.5% (+7.3% vs SPY) | +10.5% (+10.6% vs SPY) |
| Jun 1, 2026 | Insider sale | Young Mark A. sold $101K | −0.4% (−0.6% vs SPY) | −2.6% (0.0% vs SPY) | +17.0% (+18.0% vs SPY) |
| Jun 1, 2026 | Insider buy | Banyard R David bought $506K | −0.4% (−0.6% vs SPY) | −2.6% (0.0% vs SPY) | +17.0% (+18.0% vs SPY) |
| May 28, 2026 | 8-K | Completed acquisition or disposition | −2.5% (−3.1% vs SPY) | −9.1% (−9.6% vs SPY) | +5.9% (+8.6% vs SPY) |
| May 5, 2026 | Earnings | Earnings: beat the EPS estimate by 271.4% | +3.1% (+2.3% vs SPY) | −11.8% (−14.7% vs SPY) | +3.9% (−1.0% vs SPY) |
| Apr 22, 2026 | 8-K | Directors and officers: departures, appointments, pay | +2.2% (+2.5% vs SPY) | −0.1% (−0.1% vs SPY) | −18.6% (−22.9% vs SPY) |
| Mar 26, 2026 | 8-K | Material definitive agreement | −2.5% (−0.8% vs SPY) | −5.8% (−7.5% vs SPY) | +9.5% (−0.8% vs SPY) |
| Feb 10, 2026 | Earnings | Earnings: missed the EPS estimate by -114.3% | +2.7% (+3.0% vs SPY) | −14.9% (−13.3% vs SPY) | −46.6% (−44.0% vs SPY) |
Insiders’ record here
In the year on the chart, MasterBrand's insiders reported 4 open-market buys ($696K) and 4 sales ($854K). Of the 6 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 −5.8% and after a sale −5.8%.
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% |
| 5.02 Directors and officers: departures, appointments, pay | 39,174 | −0.1% | 48% | +0.7% | ±1.4% |
| 2.01 Completed acquisition or disposition | 2,671 | +0.1% | 52% | +1.2% | ±1.6% |
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 → MasterBrand: 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.