13F reference period
Q3 2026
Security Snapshot
AECOM - Common Stock (ACM) Institutional Ownership
CUSIP: 00766T100
13F Institutional Holders and Ownership History from Q1 2014 to Q3 2026
Institutions Reporting
326
Shares (Excl. Options)
65.66M
Full value: 65,655,579 · shares · 30 Sep 2026Price
$58.95
The headline uses the Q3 2026 reference period after its reporting deadline. Available reports may still be incomplete or amended.
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- Security type / class
- Equity / Common Stock
- Symbol
- ACM on NYSE
- All holders as of 30 Sep 2026
- Q3 2026
- Total 13F shares
- 65,655,579
- Total 13F value
- $3,870,290,827
- Portfolio coverage rank
- 0%
- Share change
- -533,865
- Value change
- -$44,280,502
- Number of holders
- 326
- Shares outstanding
- 127,988,820
- SEC-reported price per share
- $59.39
- Insider filing price
- $59.39
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
Filing notes and source
Key facts
- ACM - AECOM - Common Stock is tracked under CUSIP 00766T100.
- 326 institutions reported positions in Q3 2026.
- 4 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 574 to 326 between Q2 2026 and Q3 2026.
- SEC-reported value moved from to
$8.34B
Full value: $8,340,924,546 · USD · 30 Jun 2026.$3.87B
Full value: $3,870,290,827 · USD · 30 Sep 2026
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 326 institutions filings for Q3 2026.
Security key
00766T100
13F reference period
Q3 2026
13F holders
326
13D/G owners
4
CIK / CUSIP context first
Open Q3 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
4
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 |
| BARROW HANLEY MEWHINNEY & STRAUSS LLC | 6.1% | $463,676,616 | 7,807,318 | BARROW HANLEY MEWHINNEY & STRAUSS LLC | 30 Sep 2026 | |||
| VANGUARD CAPITAL MANAGEMENT LLC | 5.2% | $572,550,013 | 6,750,177 | Vanguard Capital Management | 31 Mar 2026 |
As of 30 Sep 2026,
326
institutional investors reported holding
shares of
AECOM - Common Stock (ACM).
This represents
51%
of the company’s total
outstanding shares.
65.66M
Full value: 65,655,579 · shares · 30 Sep 2026127.99M
Full value: 127,988,820 · shares · Stored outstanding share count13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
44%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| PRIMECAP MANAGEMENT CO/CA/ | 6.9% | 8,865,743 | +0.9% | 0.32% | $522,635,551 |
| BARROW HANLEY MEWHINNEY & STRAUSS LLC | 6.1% | 7,808,921 | +42% | 1.5% | $460,335,893 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4.5% | 5,797,530 | -0.18% | 0.01% | $341,764,394 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 4.2% | 5,436,977 | -0.91% | 0.01% | $320,509,794 |
| STATE STREET CORP | 3.3% | 4,198,726 | +2.3% | 0.01% | $247,514,898 |
| Invesco Ltd. | 2.8% | 3,552,511 | +11% | 0.02% | $209,420,544 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.8% | 2,348,767 | -4% | 0.01% | $138,496,080 |
| FIRST TRUST ADVISORS LP | 1.7% | 2,116,120 | -13% | 0.07% | $124,745,266 |
| Impax Asset Management Group plc | 1.6% | 2,076,441 | -2.4% | 0.94% | $122,406,197 |
| DIMENSIONAL FUND ADVISORS LP | 1.5% | 1,941,377 | +18% | 0.02% | $114,441,895 |
| Meritage Group LP | 1.4% | 1,764,199 | 3.7% | $103,999,531 | |
| MORGAN STANLEY | 1.3% | 1,696,467 | +3.5% | 0.01% | $100,006,832 |
| Amundi | 1.2% | 1,514,792 | +15% | 0.02% | $89,332,002 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 0.91% | 1,169,471 | -44% | 0.03% | $68,940,315 |
| VANGUARD FIDUCIARY TRUST CO | 0.64% | 817,188 | +0.56% | 0.01% | $48,173,233 |
| Ninety One UK Ltd | 0.57% | 730,168 | -2.9% | 0.09% | $43,043,409 |
| River Road Asset Management, LLC | 0.53% | 683,618 | 0.48% | $40,299,281 | |
| RENAISSANCE TECHNOLOGIES LLC | 0.46% | 590,677 | -21% | 0.05% | $34,820,409 |
| Perpetual Ltd | 0.43% | 544,353 | +12% | 0.5% | $32,089,609 |
| FIL Ltd | 0.36% | 461,129 | +53% | 0.02% | $27,183,555 |
| Robeco Schweiz AG | 0.35% | 445,600 | +29% | 0.47% | $26,268,120 |
| Connor, Clark & Lunn Investment Management Ltd. | 0.34% | 435,043 | +524% | 0.04% | $25,645,785 |
| LETKO, BROSSEAU & ASSOCIATES INC | 0.31% | 396,040 | +1.5% | 0.34% | $23,346,558 |
| BANK OF NOVA SCOTIA | 0.31% | 394,931 | +21% | 0.04% | $23,281,182 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | 0.29% | 376,957 | -72% | 0.02% | $22,221,615 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
51
Headline period
Q3 2026
Rows shown
1-25 of 51
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q3 | 65,655,579 | $3,870,290,827 | -$44,280,502 | $58.95 | 326 |
| 2026 Q2 | 119,248,645 | $8,340,924,546 | +$331,360,880 | $69.80 | 574 |
| 2026 Q1 | 113,508,552 | $9,630,556,329 | -$192,768,187 | $84.82 | 624 |
| 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 |