Aecom ACM Insider Ownership

NYSE ACM

$60.48 -0.37 (-0.61%)

At close: Oct 23, 2026 · 4:00 PM EDT

Insider Holdings by Owner

686.65K Shares

Insider Ownership Statistics

as of 30 Sep, 2026

Insider Ownership

0.653%

▼0.0000% pp QoQ

Shares Held by Insiders

839.91K

filed for Sep 2026

■0.00% QoQ

Shares Outstanding

128.70Mn

128,696,425 shares

Direct Holdings

579.79K

Indirect: 260.11K

Net Shares Traded (QoQ)

no net change in Sep 2026

Insiders Holding Shares

with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold

Latest quarter —

Net over range —

Buying quarters —

Insider Ownership Summary

Updated Oct 11, 2026

Over the past year, ACM insiders bought $699,391 of stock (9.87K shares) and sold $3.22 million (33.03K shares) on the open market.

Counted by insider, open-market buying of ACM stock in the past 12 months came from 3 insiders and selling from 2 insiders.
Among ACM's insiders, Troy Rudd (Chief Executive Officer) was the top open-market buyer in the past 12 months, with $300,060 of stock purchased (4.22K shares) and the latest purchase on May 14, 2026.
Meanwhile, the largest open-market sales of ACM in the past 12 months were by Lara Poloni (President), totaling $1.7 million (17.53K shares), most recently on December 17, 2025.
The latest open-market trade in ACM stock by an insider was a purchase of 4.22K shares for $298,341 by Lara Poloni (President) on June 16, 2026.
Beyond open-market trades, insiders at Aecom received 237.96K shares in stock awards, acquired 62.39K shares through option exercises and conversions, gave up 89.45K shares to cover taxes or exercise prices and gave away 600 shares as gifts in the last 12 months.
Per Business Quant, ACM insiders together hold 839.91K shares based on their latest Form 4 filings, unchanged from 839.91K shares at the end of Q2 2026 and up 28.10% from 655.65K shares at the end of Q3 2025.
Aecom insiders hold 579.79K shares directly (69.03% of their total) and 260.11K shares (30.97%) indirectly, through entities such as trusts and partnerships.
Per Business Quant, 11 insiders of ACM hold shares, counting officers, directors and 10% owners who have filed a Form 4 in the past two years.
Aecom's three largest insider shareholders, based on their latest Form 4 filings, are Troy Rudd (Chief Executive Officer, 401.96K shares), Lara Poloni (President, 153.45K shares) and Gaurav Kapoor (Chief Financial Officer (PAO), 88.05K shares).
Troy Rudd alone accounts for 47.86% of the shares held by Aecom insiders.
Institutional investors held 92.56% of Aecom stock at the end of Q2 2026, while the latest Form 4 filings of its insiders account for about 0.65%; other investors, including the public, hold roughly 6.79%.
In the past year, 11 insiders of Aecom submitted 15 Form 4 filings reporting trades, awards or other transactions.
The insider holdings and trades above for Aecom reflect Form 4 filings through June 16, 2026.

Form 4 Holdings

Insiders Holding ACM

Insiders 18

Shares held 686.65K

Of outstanding 0.534%

#	Insider	Position	Direct	Total	Share of Insiders	Last Filed
1	Lara Poloni	President	153,446	153,446	22.3%	16 Jun, 2026
2	Troy Rudd	Chief Executive Officer	142,207	142,207	20.7%	14 May, 2026
3	Gaurav Kapoor	Chief Financial Officer (Pao)	88,053	88,053	12.8%	14 May, 2026
4	David Y. Gan	Chief Legal Officer	41,549	41,549	6.1%	17 Dec, 2025
5	Clarence T Schmitz	Director	40,219	40,219	5.9%	28 Feb, 2022
6	Janet Carol Wolfenbarger	Director	38,822	38,822	5.7%	05 Mar, 2026
7	Douglas Stotlar	Director	38,804	38,804	5.7%	05 Mar, 2026
8	Brad W Buss	Director	28,513	28,513	4.2%	05 Mar, 2026
9	Daniel R. Tishman	Vice Chairman	23,677	23,677	3.4%	05 Mar, 2026
10	Todd Battley	Chief Strategy Officer	16,295	16,295	2.4%	09 Jan, 2023
11	Shirley A Adams	Chief Human Resources Officer	14,750	14,750	2.1%	19 Dec, 2022
12	'T Noordende Alexander M Van	Director	12,423	12,423	1.8%	05 Mar, 2026
13	Robert G Card	Director	11,242	11,242	1.6%	03 Mar, 2023
14	Lydia H Kennard	Director	10,456	10,456	1.5%	21 Mar, 2024
15	Jacqueline C. Hinman	Director	8,927	8,927	1.3%	28 Feb, 2022
16	Kristy Pipes	Director	8,623	8,623	1.3%	05 Mar, 2026
17	Diane C Creel	Director	4,970	4,970	0.7%	03 Mar, 2023
18	Derek J Kerr	Director	3,677	3,677	0.5%	05 Mar, 2026

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

5,226 Insider Transactions

Source SEC Form 4

Latest quarter Sep 2026

Date	Insider	Position	Transaction	Shares	Price	Value	Shares Held After	Ownership
16 Jun, 2026	Lara Poloni	President	Acquired P	4,224	$70.63	$298.34K	153,446	Direct
14 May, 2026	Gaurav Kapoor	Chief Financial Officer (Pao)	Acquired P	1,420	$71.12	$100.99K	88,053	Direct
14 May, 2026	Troy Rudd	Chief Executive Officer	Acquired P	4,225	$71.02	$300.06K	142,207	Direct
03 Mar, 2026	Douglas Stotlar	Director	Acquired A	2,236	$0.00	$0	38,804	Direct
03 Mar, 2026	Kristy Pipes	Director	Acquired A	2,002	$0.00	$0	8,623	Direct
03 Mar, 2026	Daniel R. Tishman	Director	Acquired A	2,002	$0.00	$0	23,677	Direct
03 Mar, 2026	Janet Carol Wolfenbarger	Director	Acquired A	2,002	$0.00	$0	38,822	Direct
03 Mar, 2026	Brad W Buss	Director	Acquired A	2,002	$0.00	$0	28,513	Direct
03 Mar, 2026	Derek J Kerr	Director	Acquired A	2,002	$0.00	$0	3,677	Direct
03 Mar, 2026	'T Noordende Alexander M Van	Director	Acquired A	2,002	$0.00	$0	12,423	Direct
23 Dec, 2025	Troy Rudd	Chief Executive Officer	Disposed G	600	$0.00	$0	259,756	Indirect
15 Dec, 2025	Gaurav Kapoor	Chief Financial Officer (Pao)	Acquired M	9,562	$0.00	$0	65,974	Direct
15 Dec, 2025	David Y. Gan	Chief Legal Officer	Acquired M	5,976	$0.00	$0	46,991	Direct
15 Dec, 2025	Lara Poloni	President	Acquired M	10,040	$0.00	$0	140,231	Direct
15 Dec, 2025	Troy Rudd	Chief Executive Officer	Acquired M	36,812	$0.00	$0	36,812	Direct
15 Dec, 2025	Lara Poloni	President	Acquired A	16,334	$0.00	$0	156,565	Direct
15 Dec, 2025	Troy Rudd	Chief Executive Officer	Acquired A	49,000	$0.00	$0	85,812	Direct
15 Dec, 2025	Gaurav Kapoor	Chief Financial Officer (Pao)	Acquired A	15,109	$0.00	$0	81,083	Direct
15 Dec, 2025	David Y. Gan	Chief Legal Officer	Acquired A	6,534	$0.00	$0	53,525	Direct
15 Dec, 2025	Gaurav Kapoor	Chief Financial Officer (Pao)	Acquired A	22,490	$0.00	$0	103,573	Direct

Showing 1 to 20 of 5,226 transactions