David Y. Gan

CIK: 0001805823

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)6 (42.9%)

Position reduction

Option Exercises (M)2 (14.3%)

Derivative conversions

Awards (A)4 (28.6%)

Compensation grants

Other (G, F, J, C, D, …)2 (14.3%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

ACM

AECOM

Officer

Discretionary Trading P&L

Holdings

Transaction History (14 total)

ACM
AECOM
Dec 17, 2025
Sale(S)
Direct
9.5K shares at avg. $97.01$922K
ACM
AECOM
Dec 15, 2025
Exercise(M)
Direct
6K shares-
ACM
AECOM
Dec 15, 2025
Award(A)
Direct
6.5K shares-
ACM
AECOM
Dec 15, 2025
Award(A)
Direct
14.1K shares-
ACM
AECOM
Dec 15, 2025
Tax Payment(F)
Direct
10.5K shares at avg. $97.96$1.0M
ACM
AECOM
Dec 15, 2025
Sale(S)
Direct
6K shares at avg. $98.85$593K
ACM
AECOM
Dec 18, 2024
Sale(S)
Direct
3K shares at avg. $111.00$337K
ACM
AECOM
Dec 17, 2024
Sale(S)
Direct
6.4K shares at avg. $110.19$701K
ACM
AECOM
Dec 16, 2024
Sale(S)
Direct
4K shares at avg. $111.05$439K
ACM
AECOM
Dec 16, 2024
Sale(S)
Direct
7.5K shares at avg. $111.67$843K
ACM
AECOM
Dec 15, 2024
Award(A)
Direct
5.4K shares-
ACM
AECOM
Dec 15, 2024
Exercise(M)
Direct
6.4K shares-
ACM
AECOM
Dec 15, 2024
Award(A)
Direct
13.5K shares-
ACM
AECOM
Dec 15, 2024
Tax Payment(F)
Direct
10.5K shares at avg. $111.51$1.2M

		Type	Shares	Price		Ownership
Dec 17, 2025	ACM AECOM	Sale(S)	9,502	$97.01	$921,789	Direct
Dec 15, 2025	ACM AECOM	Exercise(M)	5,976	-	-	Direct
Dec 15, 2025	ACM AECOM	Award(A)	6,534	-	-	Direct
Dec 15, 2025	ACM AECOM	Award(A)	14,056	-	-	Direct
Dec 15, 2025	ACM AECOM	Tax Payment(F)	10,530	$97.96	$1,031,519	Direct
Dec 15, 2025	ACM AECOM	Sale(S)	6,000	$98.85	$593,100	Direct
Dec 18, 2024	ACM AECOM	Sale(S)	3,036	$111.00	$336,996	Direct
Dec 17, 2024	ACM AECOM	Sale(S)	6,362	$110.19	$701,029	Direct
Dec 16, 2024	ACM AECOM	Sale(S)	3,951	$111.05	$438,759	Direct
Dec 16, 2024	ACM AECOM	Sale(S)	7,549	$111.67	$842,997	Direct
Dec 15, 2024	ACM AECOM	Award(A)	5,381	-	$0	Direct
Dec 15, 2024	ACM AECOM	Exercise(M)	6,426	-	$0	Direct
Dec 15, 2024	ACM AECOM	Award(A)	13,466	-	$0	Direct
Dec 15, 2024	ACM AECOM	Tax Payment(F)	10,494	$111.51	$1,170,186	Direct

1-14 of 14 transactions

About Gan David Y.

Gan David Y. (SEC CIK 0001805823) files insider reports with the SEC as CHIEF LEGAL OFFICER of AECOM (ACM).

Signal8 holds 2 ownership filings by Gan David Y., all Form 4s, filed between Dec 18, 2024 and Dec 17, 2025. Those filings report 14 transactions, from Dec 15, 2024 to Dec 17, 2025. Signal8's Form 4 history starts in Sep 2024.

The business address on Gan David Y.'s filings is in DALLAS, TX.

Recent filings by Gan David Y.

Dec 17, 2025: Open-market sale of ACM shares (Form 4, code S).
Dec 15, 2025: Option exercise of ACM shares (Form 4, code M).
Dec 15, 2025: Grants or awards of ACM shares (2 lines, Form 4, code A).
Dec 15, 2025: Tax withholding of ACM shares (Form 4, code F).
Dec 15, 2025: Open-market sale of ACM shares (Form 4, code S).

Other insiders filing for AECOM (ACM)

Kumar Manav, Chief Legal Officer
Poloni Lara, PRESIDENT
Kapoor Gaurav, CHIEF FINANCIAL OFFICER (PAO)
Rudd Troy, CHIEF EXECUTIVE OFFICER
Wolfenbarger Janet Carol, Director
van 't Noordende Alexander M, Director

How to read Form 4 transaction codes