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AECOM stock timeline
A year of the price with every insider trade, planned sale, earnings report and material 8-K marked
252 sessions−47.8% to $66.74
AECOM (ACM) stock fell 48% over the last 252 sessions, to $66.74. On the way it reported 4 quarters, its insiders filed 3 open-market trades, and the company filed 3 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 |
|---|---|---|---|---|---|
| Sep 16, 2026 | 8-K | Directors and officers: departures, appointments, pay | +1.0% (−0.2% vs SPY) | −2.2% (−4.2% vs SPY) | −5.6% (−8.1% vs SPY) |
| Aug 10, 2026 | Earnings | Earnings: missed the EPS estimate by -134.2% | −3.4% (−3.4% vs SPY) | −18.4% (−18.8% vs SPY) | −13.8% (−12.9% vs SPY) |
| Jun 16, 2026 | Insider buy | Poloni Lara bought $298K | +2.1% (+2.7% vs SPY) | −0.8% (+1.9% vs SPY) | +1.0% (+1.3% vs SPY) |
| Jun 11, 2026 | 8-K | Material definitive agreement | +0.8% (+0.2% vs SPY) | −1.1% (−2.6% vs SPY) | −1.1% (−3.2% vs SPY) |
| May 14, 2026 | Insider buy | Rudd Troy bought $300K | +0.7% (−0.1% vs SPY) | +1.3% (+1.5% vs SPY) | −0.6% (−0.5% vs SPY) |
| May 14, 2026 | Insider buy | Kapoor Gaurav bought $101K | +0.7% (−0.1% vs SPY) | +1.3% (+1.5% vs SPY) | −0.6% (−0.5% vs SPY) |
| May 11, 2026 | Earnings | Earnings: beat the EPS estimate by 3.5% | −1.4% (−1.6% vs SPY) | −12.2% (−12.4% vs SPY) | −12.2% (−12.2% vs SPY) |
| Mar 10, 2026 | 8-K | Material definitive agreement | +0.2% (+0.4% vs SPY) | −1.7% (−0.7% vs SPY) | −6.2% (−6.9% vs SPY) |
| Feb 9, 2026 | Earnings | Earnings: beat the EPS estimate by 10.9% | +1.6% (+1.2% vs SPY) | −13.5% (−12.2% vs SPY) | −10.1% (−8.1% vs SPY) |
| Nov 18, 2025 | Earnings | Earnings: beat the EPS estimate by 1.7% | −3.7% (−2.8% vs SPY) | −23.9% (−24.4% vs SPY) | −31.1% (−31.9% vs SPY) |
Insiders’ record here
In the year on the chart, AECOM's insiders reported 3 open-market buys ($699K) and 0 sales ($0). Of the 3 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 −14.9% and after a sale —.
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% |
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 → AECOM: 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.