Aecom (ACM) Superinvestor holders
24 of the superinvestors we track hold Aecom (ACM) in their latest 13F filings, $1.3B in total.
Summary
The largest holder is PRIMECAP Management (PRIMECAP Management Co), with $613M, 0.4% of the portfolio.
In their latest quarter: 1 opened a new position, 13 added, 10 trimmed.
Who holds it
Each investor's latest 13F filing, largest stake first. What a 13F shows.
| Investor | Last change | Shares | Value | % of portfolio | Filed for |
|---|---|---|---|---|---|
| PRIMECAP Management PRIMECAP Management Co |
Added | 8,787,043 | $613M | 0.4% | Q2 2026 |
| Arrowstreet Capital | Added | 2,096,935 | $146M | 0.1% | Q2 2026 |
| Cliff Asness AQR Capital Management |
Added | 1,795,383 | $124M | 0.0% | Q2 2026 |
| David Shaw D. E. Shaw & Co. |
Added | 1,711,157 | $119M | 0.1% | Q2 2026 |
| Two Sigma Two Sigma Investments |
Added | 875,607 | $61M | 0.0% | Q2 2026 |
| Jim Simons Renaissance Technologies |
Added | 746,877 | $52M | 0.1% | Q2 2026 |
| Paul Tudor Jones Tudor Investment Corp |
Added | 669,882 | $47M | 0.2% | Q2 2026 |
| Joel Greenblatt Gotham Asset Management |
Added | 454,550 | $32M | 0.1% | Q2 2026 |
| David Vogel Voloridge Investment Management |
Trimmed | 306,336 | $21M | 0.1% | Q2 2026 |
| Neil Hennessy Hennessy Advisors |
Trimmed | 276,900 | $16M | 0.6% | Q3 2026 |
| Peter Muller PDT Partners |
New position | 172,729 | $12M | 0.6% | Q2 2026 |
| Ray Dalio Bridgewater Associates |
Trimmed | 163,405 | $11M | 0.0% | Q2 2026 |
| Mark Donovan Boston Partners |
Added | 138,428 | $10M | 0.0% | Q2 2026 |
| Brandon Haley Holocene Advisors |
Added | 107,951 | $8M | 0.0% | Q2 2026 |
| Jeremy Grantham GMO |
Added | 62,570 | $4M | 0.0% | Q2 2026 |
| Man Group Man Group plc |
Trimmed | 32,408 | $2M | 0.0% | Q2 2026 |
| Paul Marshall Marshall Wace |
Trimmed | 22,261 | $2M | 0.0% | Q2 2026 |
| Alec Litowitz Magnetar Capital |
Added | 16,496 | $1M | 0.0% | Q2 2026 |
| WCM Investment Management | Added | 12,365 | $862,706 | 0.0% | Q2 2026 |
| Acadian Acadian Asset Management |
Trimmed | 12,209 | $718,000 | 0.0% | Q3 2026 |
| Ken Tropin Graham Capital Management |
Trimmed | 7,868 | $549,186 | 0.0% | Q2 2026 |
| Ensign Peak Ensign Peak Advisors |
Trimmed | 7,528 | $525,454 | 0.0% | Q2 2026 |
| Alan Howard Brevan Howard |
Trimmed | 6,512 | $454,538 | 0.0% | Q2 2026 |
| Aziz Hamzaogullari Loomis Sayles & Co |
Trimmed | 610 | $42,575 | 0.0% | Q2 2026 |
Holders by quarter
| Quarter | Superinvestors holding it |
|---|---|
| Q2 2026 | 24 |
| Q1 2026 | 24 |
| Q4 2025 | 22 |
| Q3 2025 | 20 |
| Q2 2025 | 19 |
| Q1 2025 | 16 |
| Q4 2024 | 13 |
| Q3 2024 | 14 |
Questions about Aecom
Which superinvestors own Aecom?
24 of the superinvestors we track hold Aecom (ACM) in their latest 13F filings, $1.3B in total. PRIMECAP Management, Arrowstreet Capital, Cliff Asness, David Shaw, Two Sigma, Jim Simons.
Who is the largest superinvestor holder of ACM?
The largest holder is PRIMECAP Management (PRIMECAP Management Co), with $613M, 0.4% of the portfolio.
From Aecom's annual reports filed with the SEC (XBRL data), standardised by Investingly. Information only, not investment advice.