ACM · Insider trading · 13F holders · Congress trades
AECOM Common Stock (ACM)
Who is buying and selling ACM: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 15
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 1
ACM at a glance
- No open-market insider purchases or sales of ACM were filed in the last 90 days.
- 15 13F filers hold ACM among their 50 largest positions, worth $639.9M combined. The biggest bets by portfolio weight are Sandhill Capital Partners LLC (2.4%), Value Holdings Management Co. LLC (1.8%) and Running Oak Capital LLC (1.6%). In their latest 13Fs, 0 managers opened a new position and 3 added to one.
- Members of Congress have disclosed 4 ACM trades since 2019, 0 purchases and 1 sale in the past year; the latest was Alan Armstrong (R-OK), selling $15K–50K on Mar 27, 2026.
- ACM last closed at $63.46 on Oct 30, 2026.
ACM insider trading
No open-market insider purchases or sales of ACM were filed in the last 90 days.
Who owns ACM? Hedge funds and superinvestors
15 13F filers hold ACM among their 50 largest positions, worth $639.9M combined. The biggest bets by portfolio weight are Sandhill Capital Partners LLC (2.4%), Value Holdings Management Co. LLC (1.8%) and Running Oak Capital LLC (1.6%). In their latest 13Fs, 0 managers opened a new position and 3 added to one.
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Barrow Hanley Mewhinney & Strauss LLCInstitutional asset manager | 1.2% | $383.7M | 5,497,153 | +92.7% shares | Q2 2026 |
| Impax Asset Management Group plcMutual fund manager | 1.0% | $148.6M | 2,128,339 | +53.9% shares | Q2 2026 |
| Sandhill Capital Partners LLCWealth manager | 2.4% | $28.9M | 414,675 | -29.2% shares | Q2 2026 |
| Hennessy Advisors IncMutual fund manager | 0.6% | $16.3M | 276,900 | -3.1% shares | Q3 2026 |
| PDT Partners, LLCHedge fund | 0.6% | $12.1M | 172,729 | — | Q2 2026 |
| Value Holdings Management Co. LLCHedge fund | 1.8% | $10.8M | 154,553 | +88.5% shares | Q2 2026 |
| Delaney Capital Management Ltd.Hedge fund | 1.6% | $9.9M | 141,526 | +1.8% shares | Q2 2026 |
| Running Oak Capital LLCWealth manager | 1.6% | $9.3M | 133,732 | — | Q2 2026 |
| Stanley Capital Management, LLCHedge fund | 1.1% | $8.1M | 116,400 | +0.0% shares | Q2 2026 |
| Twinbeech Capital LPHedge fund | 0.9% | $4.7M | 67,447 | — | Q2 2026 |
| S&T Bank/PABank & trust | 0.9% | $2.9M | 41,375 | -14.1% shares | Q2 2026 |
| Shayne & Jacobs, LLCWealth manager | 0.5% | $1.8M | 30,260 | — | Q3 2026 |
| Steinberg Asset Management LLCWealth manager | 1.1% | $1.7M | 28,105 | -0.3% shares | Q3 2026 |
| TT International Asset Management LTDHedge fund | 0.1% | $877K | 12,563 | -5.3% shares | Q2 2026 |
| Your Advocates Ltd., LLPWealth manager | 0.1% | $262K | 3,752 | +0.0% shares | Q2 2026 |
Each manager counts with its latest 13F (Q3 2026: 3, Q2 2026: 12). Screen ACM in the grand portfolio →
ACM stock trades by members of Congress
Members of Congress have disclosed 4 ACM trades since 2019, 0 purchases and 1 sale in the past year; the latest was Alan Armstrong (R-OK), selling $15K–50K on Mar 27, 2026.
| Filed | Member | Trade | Amount | Traded | Since |
|---|---|---|---|---|---|
| Jul 21, 2026 | Alan ArmstrongR-OK · Senate | Sale | $15K–50K | Mar 27, 2026 | -25.7% |
| Dec 8, 2020 | Susie LeeD-NV · House | Sale | $1K–15K | Nov 4, 2020 | +41.6% |
| Jan 16, 2020 | Susie LeeD-NV · House | Buy | $1K–15K | Nov 12, 2019 | +47.1% |
| Jan 16, 2020 | Susie LeeD-NV · House | Buy | $1K–15K | Nov 8, 2019 | +49.4% |
2 members have traded ACM: Alan Armstrong, Susie Lee.
ACM questions and answers
Are insiders buying ACM stock?
No open-market insider purchases or sales of ACM were filed in the last 90 days.
Which hedge funds own ACM?
15 13F filers hold ACM among their 50 largest positions, worth $639.9M combined. The biggest bets by portfolio weight are Sandhill Capital Partners LLC (2.4%), Value Holdings Management Co. LLC (1.8%) and Running Oak Capital LLC (1.6%). In their latest 13Fs, 0 managers opened a new position and 3 added to one.
Has Congress traded ACM?
Members of Congress have disclosed 4 ACM trades since 2019, 0 purchases and 1 sale in the past year; the latest was Alan Armstrong (R-OK), selling $15K–50K on Mar 27, 2026.
Who is the largest holder of ACM?
Among 13F filers, Barrow Hanley Mewhinney & Strauss LLC reports the largest ACM position, $383.7M (5,497,153 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Sandhill Capital Partners LLC's: 2.4% of its portfolio.
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