AECOM
MX ˙ BMV ˙ US00766T1007
SecurityMX:ACM / AECOM
InstitutionNorthern Trust Corp
Latest Disclosed Ownership1,964,760 shares
Latest Disclosed Value $ 166,650,943
Northern Trust Corp reports 3.45% decrease in ownership of ACM / AECOM

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 1,964,760 shares of AECOM (MX:ACM) valued at $166,650,943 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 2,035,018 shares of AECOM. This represents a change in shares of -3.45% 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)
2026-05-14 2026-03-31 13F AECOM COM 00766T100 1,964,760 -70,258 -3.45 166,651 -14.10 0.0220
2026-02-17 2025-12-31 13F AECOM COM 00766T100 2,035,018 -83,131 -3.92 193,998 -29.80 0.0247
2025-11-14 2025-09-30 13F AECOM COM 00766T100 2,118,149 19,414 0.93 276,355 16.67 0.0354
2025-08-13 2025-06-30 13F AECOM COM 00766T100 2,098,735 -119,677 -5.39 236,863 15.14 0.0326
2025-05-13 2025-03-31 13F AECOM COM 00766T100 2,218,412 553,519 33.25 205,713 15.67 0.0305
2025-02-14 2024-12-31 13F AECOM COM 00766T100 1,664,893 580,078 53.47 177,844 58.75 0.0252
2024-11-13 2024-09-30 13F AECOM COM 00766T100 1,084,815 -85,037 -7.27 112,029 8.65 0.0183
2024-08-14 2024-06-30 13F AECOM COM 00766T100 1,169,852 114,632 10.86 103,111 -0.37 0.0174
2024-05-14 2024-03-31 13F AECOM COM 00766T100 1,055,220 -127,967 -10.82 103,496 -5.36 0.0179
2024-02-13 2023-12-31 13F AECOM COM 00766T100 1,183,187 11,788 1.01 109,362 12.43 0.0198
2023-11-13 2023-09-30 13F AECOM COM 00766T100 1,171,399 -26,428 -2.21 97,273 -4.11 0.0188
2023-08-11 2023-06-30 13F AECOM COM 00766T100 1,197,827 26,028 2.22 101,444 2.67 0.0195
2023-05-15 2023-03-31 13F AECOM COM 00766T100 1,171,799 37,687 3.32 98,806 2.58 0.0196
2023-02-13 2022-12-31 13F AECOM COM 00766T100 1,134,112 -30,505 -2.62 96,320 20.97 0.0202
2022-11-14 2022-09-30 13F AECOM COM 00766T100 1,164,617 -13,677 -1.16 79,625 3.61 0.0182
2022-08-12 2022-06-30 13F AECOM COM 00766T100 1,178,294 -63,431 -5.11 76,847 -19.43 0.0165
2022-05-13 2022-03-31 13F AECOM COM 00766T100 1,241,725 -2,523 -0.20 95,377 -0.90 0.0168
2022-02-08 2021-12-31 13F AECOM COM 00766T100 1,244,248 -46,057 -3.57 96,242 18.11 0.0158
2021-11-15 2021-09-30 13F AECOM COM 00766T100 1,290,305 -6,325 -0.49 81,483 -0.76 0.0144
2021-08-13 2021-06-30 13F AECOM COM 00766T100 1,296,630 -17,846 -1.36 82,103 -2.57 0.0145
2021-05-12 2021-03-31 13F AECOM COM 00766T100 1,314,476 26,860 2.09 84,271 31.47 0.0157
2021-02-11 2020-12-31 13F AECOM COM 00766T100 1,287,616 -45,638 -3.42 64,097 14.90 0.0125
2020-11-16 2020-09-30 13F AECOM COM 00766T100 1,333,254 55,931 4.38 55,783 16.21 0.0122
2020-08-14 2020-06-30 13F AECOM COM 00766T100 1,277,323 -3,411 -0.27 48,002 25.56 0.0114
2020-05-14 2020-03-31 13F AECOM COM 00766T100 1,280,734 -6,467 -0.50 38,230 -31.14 0.0110
2020-02-14 2019-12-31 13F AECOM COM 00766T100 1,287,201 105,053 8.89 55,517 25.04 0.0124
2019-11-13 2019-09-30 13F AECOM COM 00766T100 1,182,148 -23,398 -1.94 44,401 -2.69 0.0106
2019-08-13 2019-06-30 13F AECOM COM 00766T100 1,205,546 2,820 0.23 45,629 27.86 0.0108
2019-05-13 2019-03-31 13F AECOM COM 00766T100 1,202,726 31,751 2.71 35,686 15.00 0.0088
2019-02-12 2018-12-31 13F AECOM COM 00766T100 1,170,975 -26,684 -2.23 31,030 -20.67 0.0087
2018-11-14 2018-09-30 13F AECOM COM 00766T100 1,197,659 -23,009 -1.88 39,115 -2.98 0.0096
2018-09-18 2018-06-30 13F/A-1 AECOM COM 00766T100 1,220,668 8,818 0.73 40,318 -6.62 0.0102
2018-08-14 2018-06-30 13F AECOM COM 00766T100 1,230,634 18,784 40,647
2018-05-09 2018-03-31 13F AECOM COM 00766T100 1,211,850 23,558 1.98 43,177 -2.19 0.0112
2018-02-14 2017-12-31 13F AECOM COM 00766T100 1,188,292 -60,020 -4.81 44,144 -3.93 0.0112
2017-11-13 2017-09-30 13F AECOM COM 00766T100 1,248,312 -17,960 -1.42 45,951 12.24 0.0120
2017-08-11 2017-06-30 13F AECOM COM 00766T100 1,266,272 -3,729 -0.29 40,939 -9.43 0.0114
2017-05-12 2017-03-31 13F AECOM COM 00766T100 1,270,001 39,652 3.22 45,200 1.04 0.0130
2017-02-13 2016-12-31 13F AECOM COM 00766T100 1,230,349 50,287 4.26 44,735 27.52 0.0137
2016-11-09 2016-09-30 13F AECOM COM 00766T100 1,180,062 19,139 1.65 35,082 -4.88 0.0109
2016-08-12 2016-06-30 13F AECOM COM 00766T100 1,160,923 36,092 3.21 36,882 6.77 0.0120
2016-08-19 2016-03-31 13F/A-1 AECOM COM 00766T100 1,124,831 16,575 1.50 34,543 3.79 0.0115
2016-05-13 2016-03-31 13F Aecom Technology Corp D COMM 00766T100 1,124,822 34,633
2016-02-12 2015-12-31 13F Aecom Technology Corp D COMM 00766T100 1,108,256 -49,100 -4.24 33,281 4.53 0.0110
2015-11-12 2015-09-30 13F Aecom Technology Corp D COMM 00766T100 1,157,356 49,996 4.51 31,838 -13.08 0.0106
2015-08-13 2015-06-30 13F AECOM COM 00766T100 1,107,360 -112,149 -9.20 36,631 -2.54 0.0248
2015-05-14 2015-03-31 13F Aecom Technology Corp D COMM 00766T100 1,219,509 -1,566 -0.13 37,585 1.35 0.0113
2015-02-12 2014-12-31 13F Aecom Technology Corp D COM 00766T100 1,221,075 368,326 43.19 37,084 28.85 0.0112
2014-11-13 2014-09-30 13F Aecom Technology Corp D COMM 00766T100 852,749 52,160 6.52 28,781 11.65 0.0090
2014-08-14 2014-06-30 13F AECOM TECHNOLOGY CORP DELAWA com 00766T100 800,589 -73,435 -8.40 25,778 -8.32 0.0080
2014-05-14 2014-03-31 13F AECOM TECHNOLOGY CORP DELAWA COMM 00766T100 874,024 116,509 15.38 28,117 26.12 0.0088
2014-02-21 2013-12-31 13F/A-1 AECOM TECHNOLOGY CORP DELAWA COM 00766T100 757,515 -25,766 -3.29 22,293 -8.98 0.0071
2014-02-12 2013-12-31 13F AECOM TECHNOLOGY CORP DELAWA COM 00766T100 757,515 22,293
2013-11-13 2013-09-30 13F AECOM TECHNOLOGY CORP DELAWA COM 00766T100 783,281 -20,663 -2.57 24,493 -4.16 0.0086
2013-08-09 2013-06-30 13F AECOM TECHNOLOGY CORP DELAWA COM 00766T100 803,944 803,944 25,557 0.0093
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.