As of November 6, 2026, Aecom is a publicly traded company (NYSE: ACM); its largest reported holder is BlackRock, with 10.1% on Schedule 13G/A of February 6, 2026, then Primecap Management Co. (7.24%). The largest insider holding is Troy Rudd, the chief executive and a director, with 403,439.31 shares (0.31% of shares outstanding), per Form 4 of May 14, 2026 (Schedule 13G/A, February 6, 2026).
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Is Aecom a real, registered company?
- Aecom files with the SEC under CIK 868857 (its SEC filings).
- Its shares are listed under the ticker ACM on NYSE (SEC company record).
- Incorporated in Delaware; business address in Dallas, Texas, as its SEC filings state.
- Court and bankruptcy records: see Before you sign or pay below.
Before you sign or pay
- Court and bankruptcy: No federal court case or bankruptcy filing found under AECOM in our court records and SEC 8-K records (as of 2026-11-06).
- Leadership changes: the latest reported is David Gan, Chief Legal Officer (Form 8-K filed 2026-09-16). Check you are dealing with the people now in charge.
- Ownership: 5%+ holders are reported on Schedule 13D or 13G; the latest names Vanguard (filed 2026-04-29).
Who are Aecom's owners and officers?
Aecom: incorporated in Delaware; business address in Dallas, Texas; industry Services-Engineering Services (Form D, 2026-09-16).
| Report | Holder | Share |
|---|---|---|
| Schedule 13G, 2026-04-29 | Vanguard Capital Management | 5.22% |
| Schedule 13G/A, 2026-03-26 | The Vanguard Group | 0% |
| Schedule 13G/A, 2026-02-06 | Blackrock, Inc. | 10.1% |
| Schedule 13G/A, 2025-08-14 | Primecap Management Co/Ca/ | 7.24% |
Questions about who owns Aecom
Who owns Aecom?
On this page, 3 holders' latest ownership filings report 5% or more of Aecom: Blackrock, Inc. (10.1%, Schedule 13G/A, filed 2026-02-06), Primecap Management Co/Ca/ (7.24%, Schedule 13G/A, filed 2025-08-14) and Vanguard Capital Management (5.22%, Schedule 13G, filed 2026-04-29).
Who are the largest shareholders of Aecom?
By the share each holder's latest filing reports, the largest holders of Aecom on this page are Blackrock, Inc. (10.1%), Primecap Management Co/Ca/ (7.24%) and Vanguard Capital Management (5.22%).
When did Blackrock, Inc. buy into Aecom?
The filings give report dates, not purchase dates. The earliest filing from Blackrock, Inc. on this page is the Schedule 13G/A, filed 2026-02-06, reporting 10.1%. That earliest filing is itself an amendment, which updates an earlier report.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 4 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
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What the Full Report on Aecom covers
The Short Answer
Which Company This Is
What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
Warning Bells
Sources
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| Filed | Person | Role | Change | Effective |
|---|---|---|---|---|
| Form 8-K, 2026-09-16 | David Gan | Chief Legal Officer | departed |
Which insiders own Aecom shares?
Directors, officers and holders of 10% or more report their shares on Forms 3, 4 and 5. Each line is the latest such report, largest holding first.
- , the chief executive and a director: 403,439.31 shares (0.31% of shares outstanding), 142,207 held directly and 261,232.31 indirectly (Form 4, 2026-05-14).
- , the president: 153,616.81 shares (0.12% of shares outstanding), 153,446 held directly and 170.81 indirectly (Form 4, 2026-06-16).
- , the chief financial officer: 88,223.77 shares (0.07% of shares outstanding), 88,053 held directly and 170.77 indirectly (Form 4, 2026-05-14).
- , the chief legal officer: 42,125.55 shares (0.03% of shares outstanding), 41,549 held directly and 576.55 indirectly (Form 4, 2025-12-17).
- , a director: 38,822 shares (0.03% of shares outstanding) (Form 4, 2026-03-05).
Shares outstanding: 128,696,425 as of 2026-08-07, from the company's latest SEC cover page.
How much has Aecom raised?
No fundraising or offering filing from Aecom is on file with us.
Keep reading
More on Aecom and the records around it.
Aecom elsewhere on the record
- Leadership changes Sep 2026
Companies that share a holder
- PRIMECAP MANAGEMENT CO/CA/ also filed stake reports on 24 other companies: Xencor Inc (Nov 2026), GRAIL, Inc. (Nov 2026), MARKETAXESS HOLDINGS INC (Nov 2026)
- Vanguard Capital Management also filed stake reports on 1495 other companies: A10 Networks Inc (Oct 2026), Altisource Portfolio Solutions SA (Oct 2026), Alto Neuroscience Inc (Oct 2026)
- BlackRock, Inc. also filed stake reports on 1596 other companies: AvePoint, Inc. (Nov 2026), BIOMARIN PHARMACEUTICAL INC (Nov 2026), MSG RANGERS CORP (Nov 2026)
Related pages
Filings, cases and notices link to their records. A not-found line names the records searched; it is not proof of absence.
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https://mentionfox.com/who-owns/aecom