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AECOMACM

Institutional holdings from quarterly 13F reports, the largest holders, and directors’ and officers’ holdings from proxy statements.

Institutional ownership (13F)
92.9%
Q2 2026
13F filers
569
Q2 2026
Top 10 13F holders
47.0%
Q2 2026
Directors & officers
0.46%
proxy January 20, 2026
Institutional ownership, % of shares outstanding
Institutional ownership (13F)
AECOM Institutional ownership, % of shares outstanding0%20%40%60%80%100%Q3 2024Q4 2024Q1 2025Q2 2025Q3 2025Q4 2025Q1 2026Q2 2026Institutional ownership (13F) · Q3 2024: 87%Institutional ownership (13F) · Q4 2024: 88%Institutional ownership (13F) · Q1 2025: 87%Institutional ownership (13F) · Q2 2025: 90%Institutional ownership (13F) · Q3 2025: 90%Institutional ownership (13F) · Q4 2025: 90%Institutional ownership (13F) · Q1 2026: 88%Institutional ownership (13F) · Q2 2026: 93%93%

Source: SEC Form 13F data sets, 13F-HR share positions (options excluded). Shares outstanding: 10-Q/10-K cover pages. Latest quarter Q2 2026 (filings through August 31, 2026).

Five largest 13F holders, % of shares outstanding
BlackRock, Inc.Vanguard (all 13F filers)Primecap Management Co/ca/Barrow Hanley Mewhinney & Strauss LLCState Street Corp.
AECOM Five largest 13F holders, % of shares outstanding0%5.0%10%15%Q3 2024Q4 2024Q1 2025Q2 2025Q3 2025Q4 2025Q1 2026Q2 2026BlackRock, Inc. · Q3 2024: 12%BlackRock, Inc. · Q4 2024: 12%BlackRock, Inc. · Q1 2025: 11%BlackRock, Inc. · Q2 2025: 12%BlackRock, Inc. · Q3 2025: 11%BlackRock, Inc. · Q4 2025: 12%BlackRock, Inc. · Q1 2026: 12%BlackRock, Inc. · Q2 2026: 11%11%Vanguard (all 13F filers) · Q3 2024: 9.7%Vanguard (all 13F filers) · Q4 2024: 9.7%Vanguard (all 13F filers) · Q1 2025: 9.6%Vanguard (all 13F filers) · Q2 2025: 9.5%Vanguard (all 13F filers) · Q3 2025: 9.5%Vanguard (all 13F filers) · Q4 2025: 9.5%Vanguard (all 13F filers) · Q1 2026: 9.6%Vanguard (all 13F filers) · Q2 2026: 9.6%9.6%Primecap Management Co/ca/ · Q3 2024: 9.4%Primecap Management Co/ca/ · Q4 2024: 8.6%Primecap Management Co/ca/ · Q1 2025: 7.7%Primecap Management Co/ca/ · Q2 2025: 7.2%Primecap Management Co/ca/ · Q3 2025: 6.7%Primecap Management Co/ca/ · Q4 2025: 6.7%Primecap Management Co/ca/ · Q1 2026: 6.7%Primecap Management Co/ca/ · Q2 2026: 6.8%6.8%Barrow Hanley Mewhinney & Strauss LLC · Q3 2024: 1.7%Barrow Hanley Mewhinney & Strauss LLC · Q4 2024: 1.7%Barrow Hanley Mewhinney & Strauss LLC · Q1 2025: 1.5%Barrow Hanley Mewhinney & Strauss LLC · Q2 2025: 1.7%Barrow Hanley Mewhinney & Strauss LLC · Q3 2025: 1.7%Barrow Hanley Mewhinney & Strauss LLC · Q4 2025: 1.5%Barrow Hanley Mewhinney & Strauss LLC · Q1 2026: 2.2%Barrow Hanley Mewhinney & Strauss LLC · Q2 2026: 4.3%4.3%State Street Corp. · Q3 2024: 3.8%State Street Corp. · Q4 2024: 3.9%State Street Corp. · Q1 2025: 3.9%State Street Corp. · Q2 2025: 3.8%State Street Corp. · Q3 2025: 3.9%State Street Corp. · Q4 2025: 3.9%State Street Corp. · Q1 2026: 3.9%State Street Corp. · Q2 2026: 3.2%3.2%

Source: SEC Form 13F data sets, 13F-HR share positions (options excluded). Shares outstanding: 10-Q/10-K cover pages. Latest quarter Q2 2026 (filings through August 31, 2026). By 13F filing manager; Vanguard’s filers are combined.

Directors and executive officers as a group, % of class
Directors & officers
AECOM Directors and executive officers as a group, % of class0%0.10%0.20%0.30%0.40%0.50%January 29, 2024January 17, 2025January 20, 2026Directors & officers · January 29, 2024: 0.42%Directors & officers · January 17, 2025: 0.41%Directors & officers · January 20, 2026: 0.46%

Source: proxy statements (DEF 14A), beneficial ownership table. Where the proxy reports “less than 1%”, the percentage is computed from the reported share count and shares outstanding.

Largest 13F holders · Q2 2026

Manager (13F filer)Shares% of classChange vs prior quarter
BlackRock, Inc.14,379,63811.17%−1,380,726
Vanguard (all 13F filers)12,305,8119.56%+21,698
Primecap Management Co/ca/8,787,0436.83%+139,970
Barrow Hanley Mewhinney & Strauss LLC5,497,1534.27%+2,644,431
State Street Corp.4,106,0983.19%−935,362
FMR LLC3,758,1922.92%+1,650,112
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC3,565,3232.77%+83,360
Invesco Ltd.3,191,8732.48%−383,478
First Trust Advisors LP2,446,0921.90%−580,354
Geode Capital Management, LLC2,445,7381.90%−23,711

Source: SEC Form 13F data sets, 13F-HR share positions (options excluded). Shares outstanding: 10-Q/10-K cover pages. Latest quarter Q2 2026 (filings through August 31, 2026).

Directors and executive officers (proxy statements)

FiledGroupSharesAs reportedDocument
January 29, 2024All directors and executive officers (12)572,173<1%DEF 14A
January 17, 2025All directors and executive officers (12)539,405<1%DEF 14A
January 20, 2026All directors and executive officers (11)591,308<1%DEF 14A

Notes

Data files: ownership.json