Security key
00766T100
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 115,082,269
- Total 13F value
- $10,998,158,413
- Share change
- -1,491,288
- Put/Call ratio
- 43%
- SEC-reported price per share
- $95.33
- Number of holders
- 638
- Value change
- -$179,037,552
- Number of buys
- 259
- Number of sells
- 351
- Shares outstanding
- 129,313,736
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q4 2025
Institutions
638
Top holders
10
ACM full security history
Ownership snapshot
Full 13F holder table
AECOM SEC filings
AECOM company facts
AECOM 13D/G history
Broader feeds
Ownership snapshot
Top reported holders of ACM - AECOM - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
PRIMECAP MANAGEMENT CO/CA/
Disclosed value leader
BlackRock, Inc.
Comparable rows
15/15
Latest evidence
15 Dec 2025
13F
13D/G
3/4/5
Lead comparable stake: 7.2%
13D/G row: PRIMECAP MANAGEMENT CO/CA/
Showing 1-6 of 15 holder rows.
Quick read
PRIMECAP MANAGEMENT CO/CA/ leads the comparable SEC ownership view at 7.2%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens PRIMECAP MANAGEMENT CO/CA/'s linked filing trail.
Comparable ownership
Top 5
PRIMECAP MANAGEMENT CO/CA/
7.2%
David Y. Gan
0.03%
BlackRock, Inc.
11%
VANGUARD GROUP INC
9.7%
STATE STREET CORP
3.9%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| PRIMECAP MANAGEMENT CO/CA/ |
13F
13D/G
Company
|
7.2%
from 13D/G
|
$1,158,360,021
8,878,363 shares
|
— | 30 Sep 2025 |
| David Y. Gan |
3/4/5
CHIEF LEGAL OFFICER
|
0.03%
|
$4,095,835
42,126 shares
|
-$1,514,889 | 15 Dec 2025 |
| BlackRock, Inc. |
13F
Company
|
11%
|
$1,915,989,835
14,685,290 shares
|
— | 30 Sep 2025 |
| VANGUARD GROUP INC |
13F
Company
|
9.7%
|
$1,633,115,170
12,517,170 shares
|
— | 30 Sep 2025 |
| STATE STREET CORP |
13F
Company
|
3.9%
|
$666,393,269
5,107,636 shares
|
— | 30 Sep 2025 |
| Invesco Ltd. |
13F
Company
|
3.9%
|
$649,735,428
4,979,960 shares
|
— | 30 Sep 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q4 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
638
Shares
115,082,269
Rows available
638
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q4 2025 vs Q3 2025 Across Filers
Q3 2025 holders
634
Q4 2025 holders
638
Holder diff
4
| Investor | Q3 2025 Shares | Q4 2025 Shares | Share Diff | Share Chg % | Q3 2025 value | Q4 2025 value | Value change | Value Chg % |
|---|