ACM

AECOM

Services-Engineering ServicesNYSELarge accelerated filer

Total Trades

18

Buys

0

Sells

11

Largest Trade

N/A

Insiders

8

Institutional Funds

552

Inst. Value

$1M+

Activist Filings

13

Insider Trades

InsiderTitleTypeValueSharesPriceDate
Gan David Y.CHIEF LEGAL OFFICEREXERCISEN/A6KDec 17, 2025
Gan David Y.CHIEF LEGAL OFFICERSELL$1M+16K$97.72Dec 17, 2025
Gan David Y.CHIEF LEGAL OFFICERGRANTN/A21KDec 17, 2025
Poloni LaraPRESIDENTSELL$1M+18K$97.02Dec 17, 2025
Poloni LaraPRESIDENTGRANTN/A40KDec 17, 2025
Poloni LaraPRESIDENTEXERCISEN/A10KDec 17, 2025
Kapoor GauravCHIEF FINANCIAL OF…SELL$1M+42K$115.34Nov 7, 2024
Rudd TroyCHIEF EXECUTIVE OF…SELL$1M+100K$102.45Oct 3, 2024
van 't Noordende Alexander MDirectorSELL$100K–$500K2K$85.54Feb 8, 2024
Stotlar DouglasDirectorSELL$500K+10K$86.76Nov 20, 2023
Rudd TroyCHIEF EXECUTIVE OF…SELL$1M+78K$88.33Aug 17, 2023
Rudd TroyCHIEF EXECUTIVE OF…EXERCISE$1M+102K$20.12Aug 17, 2023
Tishman Daniel R.DirectorSELL$1M+21K$82.92Mar 15, 2023
Poloni LaraPRESIDENTSELL$500K+6K$83.10Jan 11, 2023
Battley ToddCHIEF STRATEGY OFF…SELL$100K–$500K3K$83.96Jan 9, 2023
Rudd TroyCHIEF EXECUTIVE OF…GRANTN/A70KDec 20, 2022
Rudd TroyCHIEF EXECUTIVE OF…SELL$1M+139K$82.51Dec 20, 2022
Rudd TroyCHIEF EXECUTIVE OF…EXERCISE$1M+129K$31.77Dec 20, 2022
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Activist & 5%+ Owners

SC 13D/13G filings — investors holding 5%+ of outstanding shares

BlackRock, Inc.

SC 13G/A · Feb 6, 2026

10.1%

13.1M shares

PRIMECAP MANAGEMENT CO/CA/

SC 13G/A · Aug 14, 2025

7.2%

9.6M shares

BlackRock, Inc.

SC 13G/A · Apr 17, 2025

9.8%

13.0M shares

PRIMECAP MANAGEMENT CO/CA/

SC 13G/A · Feb 14, 2025

8.6%

11.4M shares

The Vanguard Group - 23-1945930

SC 13G/A · Feb 13, 2024

9.7%

13.2M shares

95-3868081

SC 13G/A · Feb 12, 2024

10.3%

14.0M shares

BlackRock, Inc.

SC 13G/A · Jan 23, 2024

12.6%

17.2M shares

AllianceBernstein L.P. 13-4064930

SC 13G/A · Feb 14, 2023

4.1%

5.6M shares

95-3868081

SC 13G/A · Feb 9, 2023

12.7%

17.6M shares

STARBOARD VALUE LP

SC 13D/A · Jan 27, 2023

4.9%

6.8M shares

AllianceBernstein L.P. 13-4064930

SC 13G/A · Feb 14, 2022

5.3%

7.5M shares

95-3868081

SC 13G/A · Feb 10, 2022

14.4%

20.5M shares

BlackRock, Inc.

SC 13G/A · Feb 1, 2022

8.3%

11.8M shares

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