AECOM
MX ˙ BMV ˙ US00766T1007
SecurityMX:ACM / AECOM
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership1,387,535 shares
Latest Disclosed Value $ 117,680,369
Dimensional Fund Advisors Lp reports 6.35% increase in ownership of ACM / AECOM

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 1,387,535 shares of AECOM (MX:ACM) valued at $117,680,369 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 1,304,632 shares of AECOM. This represents a change in shares of 6.35% 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)
2026-05-07 2026-03-31 13F AECOM COM 00766T100 1,387,535 82,903 6.35 117,680 -5.39 0.0053
2026-02-12 2025-12-31 13F AECOM COM 00766T100 1,304,632 -6,397 -0.49 124,382 -27.28 0.0261
2025-11-12 2025-09-30 13F AECOM COM 00766T100 1,311,029 68,704 5.53 171,043 21.99 0.0367
2025-08-12 2025-06-30 13F AECOM COM 00766T100 1,242,325 -19,061 -1.51 140,211 19.88 0.0325
2025-05-13 2025-03-31 13F AECOM COM 00766T100 1,261,386 55,466 4.60 116,961 -9.21 0.0291
2025-02-13 2024-12-31 13F AECOM COM 00766T100 1,205,920 94,880 8.54 128,820 12.27 0.0309
2024-11-07 2024-09-30 13F AECOM COM 00766T100 1,111,040 -23,282 -2.05 114,737 14.76 0.0278
2024-08-09 2024-06-30 13F AECOM COM 00766T100 1,134,322 -104,045 -8.40 99,984 -17.68 0.0261
2024-05-10 2024-03-31 13F AECOM COM 00766T100 1,238,367 2,225 0.18 121,459 6.30 0.0329
2024-02-07 2023-12-31 13F AECOM COM 00766T100 1,236,142 -264,489 -17.63 114,259 -8.31 0.0334
2023-11-09 2023-09-30 13F AECOM COM 00766T100 1,500,631 -109,703 -6.81 124,619 -8.63 0.0409
2023-08-09 2023-06-30 13F AECOM COM 00766T100 1,610,334 -4,842 -0.30 136,381 0.14 0.0435
2023-05-12 2023-03-31 13F AECOM COM 00766T100 1,615,176 -181,179 -10.09 136,188 89,496.71 0.0459
2023-02-09 2022-12-31 13F AECOM COM 00766T100 1,796,355 -65,024 -3.49 153 -99.88 0.0451
2022-11-10 2022-09-30 13F AECOM COM 00766T100 1,861,379 -101,593 -5.18 127,263 -0.59 0.0489
2022-08-12 2022-06-30 13F AECOM COM 00766T100 1,962,972 -93,658 -4.55 128,015 -18.97 0.0459
2022-05-13 2022-03-31 13F AECOM COM 00766T100 2,056,630 -8,833 -0.43 157,978 -1.11 0.0487
2022-02-09 2021-12-31 13F AECOM COM 00766T100 2,065,463 -121,242 -5.54 159,759 15.69 0.0483
2021-11-12 2021-09-30 13F AECOM COM 00766T100 2,186,705 -22,565 -1.02 138,097 -1.28 0.0445
2021-08-12 2021-06-30 13F AECOM COM 00766T100 2,209,270 14,798 0.67 139,892 -0.57 0.0443
2021-05-14 2021-03-31 13F AECOM COM 00766T100 2,194,472 16,276 0.75 140,695 29.76 0.0465
2021-03-08 2020-12-31 13F/A-2 AECOM COM 00766T100 2,178,196 -23,990 -1.09 108,429 17.69 0.0392
2021-02-11 2020-12-31 13F AECOM COM 00766T100 2,178,196 -23,990 108,429 39,158.7915
2020-11-12 2020-09-30 13F AECOM COM 00766T100 2,202,186 -36,246 -1.62 92,132 9.52 0.0391
2020-08-13 2020-06-30 13F AECOM COM 00766T100 2,238,432 -1,886,119 -45.73 84,120 -31.66 0.0370
2020-05-14 2020-03-31 13F AECOM COM 00766T100 4,124,551 -420,979 -9.26 123,095 -37.21 0.0641
2020-02-14 2019-12-31 13F AECOM COM 00766T100 4,545,530 -192,843 -4.07 196,053 10.16 0.0714
2019-11-12 2019-09-30 13F AECOM COM 00766T100 4,738,373 15,213 0.32 177,970 -0.45 0.0692
2019-08-13 2019-06-30 13F AECOM COM 00766T100 4,723,160 -61,948 -1.29 178,767 25.92 0.0694
2019-08-12 2019-03-31 13F/A-2 AECOM COM 00766T100 4,785,108 -13,441 -0.28 141,973 11.65 0.0565
2019-05-10 2019-03-31 13F AECOM COM 00766T100 4,785,108 -13,441 141,973
2019-02-26 2018-12-31 13F/A-1 AECOM COM 00766T100 4,798,549 60,019 1.27 127,160 -17.83 0.0576
2019-02-13 2018-12-31 13F AECOM COM 00766T100 4,798,549 60,019 127,160
2018-11-13 2018-09-30 13F AECOM COM 00766T100 4,738,530 -80,700 -1.67 154,759 -2.78 0.0589
2018-08-10 2018-06-30 13F AECOM COM 00766T100 4,819,230 42,033 0.88 159,177 -6.48 0.0635
2018-05-11 2018-03-31 13F AECOM COM 00766T100 4,777,197 12,452 0.26 170,212 -3.84 0.0709
2018-02-12 2017-12-31 13F AECOM COM 00766T100 4,764,745 21,921 0.46 177,018 1.39 0.0734
2017-11-13 2017-09-30 13F AECOM COM 00766T100 4,742,824 24,471 0.52 174,587 14.45 0.0763
2017-08-11 2017-06-30 13F AECOM COM 00766T100 4,718,353 148,231 3.24 152,542 -6.21 0.0704
2017-05-12 2017-03-31 13F AECOM COM 00766T100 4,570,122 430,748 10.41 162,648 8.06 0.0777
2017-02-09 2016-12-31 13F AECOM COM 00766T100 4,139,374 18,895 0.46 150,510 22.87 0.0752
2016-11-10 2016-09-30 13F AECOM COM 00766T100 4,120,479 159,204 4.02 122,498 -2.65 0.0662
2016-08-09 2016-06-30 13F AECOM COM 00766T100 3,961,275 254,357 6.86 125,834 10.25 0.0724
2016-05-13 2016-03-31 13F AECOM COM 00766T100 3,706,918 602,368 19.40 114,138 22.42 0.0683
2016-02-10 2015-12-31 13F AECOM COM 00766T100 3,104,550 228,502 7.94 93,233 17.84 0.0581
2015-11-13 2015-09-30 13F AECOM COM 00766T100 2,876,048 175,262 6.49 79,116 -11.45 0.0519
2015-08-14 2015-06-30 13F AECOM COM 00766T100 2,700,786 203,559 8.15 89,343 16.08 0.0547
2015-05-14 2015-03-31 13F AECOM COM 00766T100 2,497,227 109,890 4.60 76,964 6.14 0.0486
2015-02-06 2014-12-31 13F AECOM TECHNOLOGY CORP DELAWA COM 00766T100 2,387,337 967,470 68.14 72,509 51.29 0.0476
2014-11-13 2014-09-30 13F AECOM TECHNOLOGY CORP DELAWA COM 00766T100 1,419,867 1,965 0.14 47,927 4.99 0.0340
2014-08-08 2014-06-30 13F AECOM TECHNOLOGY CORP DELAWA COM 00766T100 1,417,902 -17,067 -1.19 45,650 -1.10 0.0317
2014-05-14 2014-03-31 13F AECOM TECHNOLOGY CORP DELAWA COM 00766T100 1,434,969 -15,968 -1.10 46,157 8.10 0.0345
2014-02-12 2013-12-31 13F AECOM TECHNOLOGY CORP DELAWA COM 00766T100 1,450,937 20,261 1.42 42,700 -4.55 0.0333
2013-11-13 2013-09-30 13F AECOM TECHNOLOGY CORP DELAWA COM 00766T100 1,430,676 9,611 0.68 44,734 -0.97 0.0387
2013-08-15 2013-06-30 13F AECOM TECHNOLOGY CORP DELAWA COM 00766T100 1,421,065 1,421,065 45,174 0.0425
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.