AECOM
MX ˙ BMV ˙ US00766T1007
SecurityMX:ACM / AECOM
InstitutionAqr Capital Management Llc
ManagerCliff Asness
Latest Disclosed Ownership1,061,227 shares
Latest Disclosed Value $ 89,599,418
Aqr Capital Management Llc reports 521.39% increase in ownership of ACM / AECOM

On May 15, 2026 - Aqr Capital Management Llc filed a 13F-HR form disclosing ownership of 1,061,227 shares of AECOM (MX:ACM) valued at $89,599,418 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 170,783 shares of AECOM. This represents a change in shares of 521.39% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F AECOM COM 00766T100 1,061,227 890,444 521.39 89,599 450.36 0.0076
2026-02-17 2025-12-31 13F AECOM COM 00766T100 170,783 -1,460 -0.85 16,281 -27.44 0.0085
2025-11-14 2025-09-30 13F AECOM COM 00766T100 172,243 -199,140 -53.62 22,436 -46.20 0.0144
2025-08-14 2025-06-30 13F AECOM COM 00766T100 371,383 -11,713 -3.06 41,703 19.06 0.0345
2025-05-15 2025-03-31 13F AECOM COM 00766T100 383,096 -207,864 -35.17 35,026 -44.51 0.0361
2025-02-14 2024-12-31 13F AECOM COM 00766T100 590,960 -33,861 -5.42 63,126 -1.63 0.0813
2024-11-14 2024-09-30 13F AECOM COM 00766T100 624,821 262,004 72.21 64,169 100.67 0.0886
2024-08-14 2024-06-30 13F AECOM COM 00766T100 362,817 162,416 81.05 31,979 62.70 0.0490
2024-05-15 2024-03-31 13F AECOM COM 00766T100 200,401 160,531 402.64 19,655 433.38 0.0335
2024-02-14 2023-12-31 13F AECOM COM 00766T100 39,870 15,677 64.80 3,685 83.52 0.0069
2023-11-14 2023-09-30 13F AECOM COM 00766T100 24,193 -21,352 -46.88 2,009 -47.94 0.0041
2023-08-14 2023-06-30 13F AECOM COM 00766T100 45,545 -3,385 -6.92 3,857 -6.00 0.0082
2023-05-15 2023-03-31 13F AECOM COM 00766T100 48,930 -16,921 -25.70 4,104 -26.10 0.0090
2023-02-14 2022-12-31 13F AECOM COM 00766T100 65,851 -41,774 -38.81 5,553 -24.54 0.0127
2022-11-14 2022-09-30 13F AECOM COM 00766T100 107,625 -49,951 -31.70 7,358 -26.24 0.0179
2022-08-15 2022-06-30 13F AECOM COM 00766T100 157,576 18,344 13.18 9,976 -6.71 0.0225
2022-05-16 2022-03-31 13F AECOM COM 00766T100 139,232 -18,469 -11.71 10,694 -11.97 0.0203
2022-02-14 2021-12-31 13F AECOM COM 00766T100 157,701 -63,079 -28.57 12,148 -12.87 0.0220
2021-11-15 2021-09-30 13F AECOM COM 00766T100 220,780 8,221 3.87 13,942 3.59 0.0258
2021-08-16 2021-06-30 13F AECOM COM 00766T100 212,559 97,954 85.47 13,459 83.19 0.0233
2021-05-17 2021-03-31 13F AECOM COM 00766T100 114,605 52,487 84.50 7,347 138.85 0.0120
2021-02-16 2020-12-31 13F AECOM COM 00766T100 62,118 -26,366 -29.80 3,076 -16.91 0.0055
2020-11-16 2020-09-30 13F AECOM COM 00766T100 88,484 17,044 23.86 3,702 39.02 0.0063
2020-08-17 2020-06-30 13F AECOM COM 00766T100 71,440 -86,634 -54.81 2,663 -43.57 0.0043
2020-05-15 2020-03-31 13F AECOM COM 00766T100 158,074 -70,457 -30.83 4,719 -52.13 0.0079
2020-02-14 2019-12-31 13F AECOM COM 00766T100 228,531 193,028 543.69 9,857 639.46 0.0112
2019-11-14 2019-09-30 13F AECOM COM 00766T100 35,503 19,307 119.21 1,333 117.46 0.0016
2019-08-14 2019-06-30 13F AECOM COM 00766T100 16,196 16,196 613 0.0007
2019-02-14 2018-12-31 13F AECOM COM 00766T100 0 -20,137 -100.00 0 -100.00
2018-11-15 2018-09-30 13F/A-1 AECOM COM 00766T100 20,137 -519 -2.51 658 -3.52 0.0006
2018-11-14 2018-09-30 13F AECOM COM 00766T100 20,656 0 682
2018-08-14 2018-06-30 13F AECOM COM 00766T100 20,656 20,656 682 0.0007
2018-05-15 2018-03-31 13F AECOM COM 00766T100 0 -18,679 -100.00 0 -100.00
2018-02-14 2017-12-31 13F AECOM COM 00766T100 18,679 4,999 36.54 694 37.70 0.0007
2017-11-14 2017-09-30 13F AECOM COM 00766T100 13,680 5,667 70.72 504 94.59 0.0006
2017-08-14 2017-06-30 13F AECOM COM 00766T100 8,013 -171,084 -95.53 259 -95.94 0.0003
2017-05-15 2017-03-31 13F AECOM COM 00766T100 179,097 126,400 239.86 6,374 232.67 0.0085
2017-02-14 2016-12-31 13F AECOM COM 00766T100 52,697 23,774 82.20 1,916 122.79 0.0026
2016-11-14 2016-09-30 13F AECOM COM 00766T100 28,923 -7,929 -21.52 860 -26.56 0.0013
2016-08-15 2016-06-30 13F AECOM COM 00766T100 36,852 5,287 16.75 1,171 20.47 0.0021
2016-07-29 2016-03-31 13F/A-1 AECOM COM 00766T100 31,565 -3,378 -9.67 972 -7.34 0.0017
2016-05-16 2016-03-31 13F AECOM COM 00766T100 31,565 972
2016-02-16 2015-12-31 13F AECOM COM 00766T100 34,943 -64,049 -64.70 1,049 -61.48 0.0018
2015-11-16 2015-09-30 13F AECOM COM 00766T100 98,992 -74,438 -42.92 2,723 -52.54 0.0054
2015-08-14 2015-06-30 13F AECOM COM 00766T100 173,430 -89,994 -34.16 5,737 -29.34 0.0114
2015-05-15 2015-03-31 13F AECOM COM 00766T100 263,424 -246,900 -48.38 8,119 -47.62 0.0186
2015-04-22 2014-12-31 13F/A-1 AECOM TECHNOLOGY CORP DELAWA COM 00766T100 510,324 -292,031 -36.40 15,499 -42.76 0.0325
2015-02-17 2014-12-31 13F AECOM TECHNOLOGY CORP DELAWA COM 00766T100 510,324 56,098
2014-11-14 2014-09-30 13F AECOM TECHNOLOGY CORP DELAWA COM 00766T100 802,355 -401,836 -33.37 27,079 -30.16 0.0744
2014-08-14 2014-06-30 13F AECOM TECHNOLOGY CORP DELAWA COM 00766T100 1,204,191 -63,500 -5.01 38,775 -4.92 0.1045
2014-05-15 2014-03-31 13F AECOM TECHNOLOGY CORP DELAWA COM 00766T100 1,267,691 -205,000 -13.92 40,782 -5.90 0.1231
2014-02-14 2013-12-31 13F AECOM TECHNOLOGY CORP DELAWA COM 00766T100 1,472,691 195,879 15.34 43,341 8.55 0.1294
2013-11-14 2013-09-30 13F AECOM TECHNOLOGY CORP DELAWA COM 00766T100 1,276,812 70,134 5.81 39,926 4.08 0.1407
2013-08-14 2013-06-30 13F AECOM TECHNOLOGY CORP DELAWA COM 00766T100 1,206,678 220,331 22.34 38,360 63.41 0.1361
2013-05-29 2012-12-31 13F/A-1 AECOM TECHNOLOGY CORP DELAWA COM 00766T100 986,347 986,347 23,475 0.1005
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.