Latest Period
Q2 2026
Security Snapshot
AECOM - Common Stock (ACM) Institutional Ownership
CUSIP: 00766T100
13F Institutional Holders and Ownership History from Q1 2014 to Q2 2026
Institutions Reporting
566
Shares (Excl. Options)
119,367,682
Price
$69.80
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- Security type / class
- Equity / Common Stock
- Symbol
- ACM on NYSE
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 119,367,682
- Total 13F value
- $8,354,281,229
- Portfolio coverage rank
- 0%
- Share change
- +5,827,836
- Value change
- +$355,819,235
- Number of holders
- 566
- Shares outstanding
- 129,313,736
- SEC-reported price per share
- $69.95
- Insider filing price
- $69.95
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- ACM - AECOM - Common Stock is tracked under CUSIP 00766T100.
- 566 institutions reported positions in Q2 2026.
- 3 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 622 to 566 between Q1 2026 and Q2 2026.
- SEC-reported value moved from $9,628,446,239 to $8,354,281,229.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 566 institutions filings for Q2 2026.
Security key
00766T100
Latest holder period
Q2 2026
13F holders
566
13D/G owners
3
CIK / CUSIP context first
Open Q2 2026 holders
ACM full holder history
AECOM SEC filings
AECOM company facts
AECOM insider transactions
AECOM 13D/G history
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 00766T100:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
3
Security
ACM
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 10% | +3% | $1,247,757,306 | +$7,458,524 | 13,088,821 | +0.6% | BlackRock, Inc. | 31 Jan 2026 |
| PRIMECAP MANAGEMENT CO/CA/ | 7.2% | -15% | $1,096,432,703 | -$206,075,541 | 9,580,852 | -16% | PRIMECAP MANAGEMENT CO/CA/ | 30 Jun 2025 |
| VANGUARD CAPITAL MANAGEMENT LLC | 5.2% | $572,550,013 | 6,750,177 | Vanguard Capital Management | 31 Mar 2026 |
As of 30 Jun 2026, 566 institutional investors reported holding 119,367,682 shares of AECOM - Common Stock (ACM). This represents 92% of the company’s total 129,313,736 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
64%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 11% | 14,379,638 | -8.8% | 0.01% | $1,003,698,738 |
| PRIMECAP MANAGEMENT CO/CA/ | 6.8% | 8,787,043 | +1.6% | 0.36% | $613,335,602 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4.5% | 5,808,042 | +0.13% | 0.01% | $405,401,332 |
| BARROW HANLEY MEWHINNEY & STRAUSS LLC | 4.3% | 5,497,153 | +93% | 1.2% | $383,701,279 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 4.2% | 5,486,637 | -0.36% | 0.02% | $382,967,263 |
| STATE STREET CORP | 3.2% | 4,106,098 | -19% | 0.01% | $286,605,640 |
| FMR LLC | 2.9% | 3,758,192 | +78% | 0.01% | $262,321,822 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 2.8% | 3,565,323 | +2.4% | 0.05% | $248,859,545 |
| Invesco Ltd. | 2.5% | 3,191,873 | -11% | 0.02% | $222,792,760 |
| FIRST TRUST ADVISORS LP | 1.9% | 2,446,092 | -19% | 0.1% | $170,737,149 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.9% | 2,445,738 | -0.96% | 0.01% | $170,754,730 |
| Impax Asset Management Group plc | 1.6% | 2,128,339 | +54% | 0.97% | $148,558,062 |
| Qube Research & Technologies Ltd | 1.6% | 2,119,499 | +380% | 0.16% | $147,941,030 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1.6% | 2,096,935 | +779% | 0.06% | $146,366,063 |
| NORGES BANK | 1.4% | 1,853,035 | 0.01% | $129,341,843 | |
| AQR CAPITAL MANAGEMENT LLC | 1.4% | 1,795,383 | +69% | 0.04% | $124,007,075 |
| D. E. Shaw & Co., Inc. | 1.3% | 1,711,157 | +61% | 0.07% | $119,438,758 |
| UBS Group AG | 1.3% | 1,695,404 | +19% | 0.02% | $118,339,199 |
| DIMENSIONAL FUND ADVISORS LP | 1.3% | 1,640,760 | +18% | 0.02% | $114,526,869 |
| MORGAN STANLEY | 1.3% | 1,638,429 | -2.4% | 0.01% | $114,362,469 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | 1% | 1,352,854 | +11% | 0.07% | $94,429,209 |
| MILLENNIUM MANAGEMENT LLC | 1% | 1,321,296 | +69% | 0.06% | $92,226,461 |
| Amundi | 1% | 1,312,233 | +7% | 0.02% | $91,674,676 |
| Bank of New York Mellon Corp | 0.88% | 1,139,237 | -12% | 0.01% | $79,518,792 |
| NORTHERN TRUST CORP | 0.87% | 1,125,934 | -43% | 0.01% | $78,590,193 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
50
Latest
Q2 2026
Rows shown
1-25 of 50
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q2 | 119,367,682 | $8,354,281,229 | +$355,819,235 | $69.80 | 566 |
| 2026 Q1 | 113,483,669 | $9,628,446,239 | -$193,616,017 | $84.82 | 622 |
| 2025 Q4 | 115,082,269 | $10,998,158,413 | -$179,037,552 | $95.33 | 638 |
| 2025 Q3 | 115,804,853 | $15,103,792,568 | -$238,659,373 | $130.47 | 634 |
| 2025 Q2 | 117,960,668 | $13,280,160,440 | +$301,241,643 | $112.86 | 629 |
| 2025 Q1 | 115,382,949 | $10,699,138,495 | -$65,242,244 | $92.73 | 564 |
| 2024 Q4 | 115,554,518 | $12,342,854,015 | -$88,781,481 | $106.82 | 564 |
| 2024 Q3 | 115,958,967 | $11,974,148,953 | +$151,558,774 | $103.27 | 520 |
| 2024 Q2 | 116,348,036 | $10,254,796,984 | -$57,220,882 | $88.14 | 509 |
| 2024 Q1 | 116,207,492 | $11,378,960,327 | -$33,195,362 | $98.08 | 515 |
| 2023 Q4 | 116,203,395 | $10,735,271,060 | -$86,034,467 | $92.43 | 504 |
| 2023 Q3 | 117,395,975 | $9,746,676,044 | -$203,605,257 | $83.04 | 453 |
| 2023 Q2 | 119,839,528 | $10,150,044,760 | -$5,237,261 | $84.69 | 450 |
| 2023 Q1 | 119,660,786 | $10,088,067,819 | +$35,148,216 | $84.32 | 445 |
| 2022 Q4 | 119,647,726 | $10,161,494,250 | +$31,020,381 | $84.93 | 405 |
| 2022 Q3 | 119,928,250 | $8,201,655,872 | -$83,143,084 | $68.37 | 363 |
| 2022 Q2 | 120,814,136 | $7,877,927,052 | -$75,759,115 | $65.22 | 360 |
| 2022 Q1 | 122,328,276 | $9,393,109,914 | +$136,323,885 | $76.81 | 377 |
| 2021 Q4 | 120,428,195 | $9,308,398,791 | -$237,329,754 | $77.35 | 365 |
| 2021 Q3 | 123,515,575 | $7,800,988,771 | -$137,474,541 | $63.15 | 348 |
| 2021 Q2 | 125,200,610 | $7,927,861,225 | -$238,205,983 | $63.32 | 345 |
| 2021 Q1 | 128,720,347 | $8,253,655,510 | +$83,883,374 | $64.11 | 352 |
| 2020 Q4 | 128,051,313 | $6,376,366,316 | -$561,199,369 | $49.78 | 335 |
| 2020 Q3 | 140,025,168 | $5,859,597,831 | -$93,030,892 | $41.84 | 313 |
| 2020 Q2 | 142,133,563 | $5,340,500,377 | +$83,616,710 | $37.58 | 310 |