AECOM (ACM) stock: insider trades, news & valuation
Strong buyingShare price and insider trades
AECOM insider trading at a glance (Oct 9, 2026): in the past 12 months, 3 insiders bought $699K and 2 sold $3.2M of ACM stock on the open market.
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ACM insider buying and selling by quarter
Open-market purchases (green, above the line) and sales (red, below), by trade date.
| Quarter | Bought | Purchases | Sold | Sales |
|---|---|---|---|---|
| Q4 2026 | — | 0 | — | 0 |
| Q3 2026 | — | 0 | — | 0 |
| Q2 2026 | $699K | 3 | — | 0 |
| Q1 2026 | — | 0 | — | 0 |
| Q4 2025 | — | 0 | $3.2M | 4 |
Valuation, profit and volume
Summary
Over the past 12 months, 3 AECOM insiders reported open-market purchases totaling $699K, while 2 insiders reported sales totaling $3.2M. 4 of 4 recorded sales were made under pre-scheduled Rule 10b5-1 trading plans, which are usually less informative than discretionary sales.
ACM earnings: how the stock reacted
Each quarterly results release (SEC 8-K Item 2.02), the trend before it, insider trades in the 30 days before, and the 2-day market reaction. “E” marks releases on the chart above.
| Release | 15 days before | Insiders, 30 days before | Reaction (2 days) | Next 30 days |
|---|---|---|---|---|
| Aug 10, 2026 | +12.1% | None | -11.6%S&P -0.3% | -6.2% |
| May 11, 2026 | +0.2% | None | -13.2%S&P +0.1% | -0.5% |
| Feb 9, 2026 | +2.9% | None | +2.8%S&P +0.2% | -13.5% |
| Nov 18, 2025 | -1.8% | None | -14.3%S&P -0.5% | -14.4% |
| Aug 4, 2025 | -2.6% | None | +7.1%S&P +1.0% | +5.8% |
| May 5, 2025 | +8.5% | None | +0.6%S&P -1.4% | +7.5% |
| Feb 3, 2025 | -2.2% | None | -1.2%S&P -0.0% | -7.2% |
| Nov 18, 2024 | +0.1% | None | +1.8%S&P +0.8% | -1.6% |
Most companies bar insiders from trading in the weeks before results, so pre-earnings purchases are rare and often made by directors or under pre-set plans. Past reactions don't predict future ones.
Members of Congress who traded ACM
From STOCK Act disclosures. Reported up to 45 days after the trade, in dollar ranges.
| Member | Trade | Traded | Reported | Since trade |
|---|---|---|---|---|
| Alan ArmstrongSenate | Sold $15,001 - $50,000 | Mar 27, 2026 | Jul 21, 2026 | -30.1% |
Insider transactions
Open-market purchases and sales.
| Filed | Insider | Type | Shares | Price | Value | Since | Score |
|---|---|---|---|---|---|---|---|
| Jun 16SEC | Lara PoloniPresident | Buy | 4,224153,446 held (+3%) | $70.63 | $298K | -16.1% | — |
| May 14SEC | Troy RuddCEO | Buy | 4,225142,207 held (+3%) | $71.02 | $300K | -16.5% | — |
| May 14SEC | Gaurav KapoorCFO | Buy | 1,42088,053 held (+2%) | $71.12 | $101K | -16.6% | — |
| Dec 17SEC | Lara PoloniPresident | Sell Plan | 17,340149,415 held (−10%) | $97.01 | $1.7M | -38.9% | — |
| Dec 17SEC | David Y. GanGeneral Counsel | Sell Plan | 9,50241,549 held (−19%) | $97.01 | $922K | -38.9% | — |
| Dec 17SEC | David Y. GanGeneral Counsel | Sell Plan | 6,00051,051 held (−11%) | $98.85 | $593K | -40.0% | — |
| Dec 17SEC | Lara PoloniPresident | Sell Plan | 193149,222 held (−0%) | $98.35 | $19K | -39.7% | — |
Insiders at AECOM
| Insider | Bought | Sold | Last filing | Score |
|---|---|---|---|---|
| Lara PoloniPresident | $298K | $1.7M | Jun 16, 2026 | — |
| David Y. GanGeneral Counsel | — | $1.5M | Dec 17, 2025 | — |
| Troy RuddCEO | $300K | — | May 14, 2026 | — |
| Gaurav KapoorCFO | $101K | — | May 14, 2026 | — |
ACM stock: common questions
Are AECOM insiders buying ACM stock?
In the past 12 months, 3 insiders reported open-market purchases of ACM worth $699K. The latest was President Lara Poloni bought $298K of ACM at $70.63 — first open-market purchase in our records.
Are AECOM insiders selling ACM stock?
2 insiders reported sales worth $3.2M over the same period.
Where does this data come from?
Every transaction comes from Form 4 filings that insiders must submit to the SEC within two business days of a trade. We pull them from SEC EDGAR every night.
What is ACM's 52-week range?
Over the past year ACM has traded between $58.28 and $132.85. It last closed at $59.28 on Oct 9, 2026.