AECOM
MX ˙ BMV ˙ US00766T1007
SecurityMX:ACM / AECOM
InstitutionAsset Management One Co., Ltd.
Latest Disclosed Ownership98,378 shares
Latest Disclosed Value $ 8,344,422
Asset Management One Co., Ltd. reports 34.84% decrease in ownership of ACM / AECOM

On May 8, 2026 - Asset Management One Co., Ltd. filed a 13F-HR form disclosing ownership of 98,378 shares of AECOM (MX:ACM) valued at $8,344,422 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 150,971 shares of AECOM. This represents a change in shares of -34.84% 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)
2026-05-08 2026-03-31 13F AECOM COM 00766T100 98,378 -52,593 -34.84 8,344 -43.16 0.0246
2026-01-27 2025-12-31 13F AECOM COM 00766T100 150,971 -16,752 -9.99 14,680 -32.91 0.0408
2025-10-22 2025-09-30 13F AECOM COM 00766T100 167,723 50,086 42.58 21,880 64.81 0.0634
2025-07-31 2025-06-30 13F AECOM COM 00766T100 117,637 6,431 5.78 13,277 28.74 0.0416
2025-04-23 2025-03-31 13F AECOM COM 00766T100 111,206 3,362 3.12 10,312 -11.20 0.0357
2025-01-30 2024-12-31 13F AECOM COM 00766T100 107,844 4,012 3.86 11,613 8.30 0.0399
2024-10-30 2024-09-30 13F AECOM COM 00766T100 103,832 -770 -0.74 10,723 16.30 0.0382
2024-07-18 2024-06-30 13F AECOM COM 00766T100 104,602 -498 -0.47 9,220 -10.56 0.0353
2024-05-02 2024-03-31 13F AECOM COM 00766T100 105,100 -4,120 -3.77 10,308 1.59 0.0397
2024-01-24 2023-12-31 13F AECOM COM 00766T100 109,220 1,324 1.23 10,148 13.26 0.0408
2023-10-19 2023-09-30 13F AECOM COM 00766T100 107,896 -1,385 -1.27 8,960 -3.20 0.0399
2023-07-31 2023-06-30 13F AECOM COM 00766T100 109,281 5,682 5.48 9,255 5.95 0.0392
2023-04-25 2023-03-31 13F AECOM COM 00766T100 103,599 50,483 95.04 8,735 93.51 0.0396
2023-02-06 2022-12-31 13F AECOM COM 00766T100 53,116 -6,004 -10.16 4,515 11.68 0.0220
2022-11-04 2022-09-30 13F AECOM COM 00766T100 59,120 -8,759 -12.90 4,042 -8.70 0.0206
2022-07-29 2022-06-30 13F AECOM COM 00766T100 67,879 -8,316 -10.91 4,427 -24.35 0.0208
2022-05-13 2022-03-31 13F AECOM COM 00766T100 76,195 5,643 8.00 5,852 7.69 0.0228
2022-02-09 2021-12-31 13F AECOM COM 00766T100 70,552 0 0.00 5,434 21.98 0.0189
2021-11-02 2021-09-30 13F AECOM COM 00766T100 70,552 4,375 6.61 4,455 6.32 0.0171
2021-08-03 2021-06-30 13F AECOM COM 00766T100 66,177 20,176 43.86 4,190 42.08 0.0156
2021-05-14 2021-03-31 13F AECOM COM 00766T100 46,001 0 0.00 2,949 32.24 0.0117
2021-02-12 2020-12-31 13F AECOM COM 00766T100 46,001 0 0.00 2,230 15.84 0.0092
2020-11-13 2020-09-30 13F AECOM COM 00766T100 46,001 0 0.00 1,925 11.34 0.0088
2020-08-14 2020-06-30 13F AECOM COM 00766T100 46,001 -16,178 -26.02 1,729 -6.84 0.0085
2020-05-14 2020-03-31 13F AECOM COM 00766T100 62,179 -45,073 -42.03 1,856 -59.88 0.0108
2020-02-14 2019-12-31 13F AECOM COM 00766T100 107,252 -45,122 -29.61 4,626 -19.17 0.0209
2019-11-14 2019-09-30 13F AECOM COM 00766T100 152,374 -6,759 -4.25 5,723 -4.98 0.0276
2019-08-14 2019-06-30 13F AECOM COM 00766T100 159,133 -25,016 -13.58 6,023 10.23 0.0296
2019-05-15 2019-03-31 13F AECOM COM 00766T100 184,149 0 0.00 5,464 12.73 0.0295
2019-02-13 2018-12-31 13F AECOM COM 00766T100 184,149 0 0.00 4,847 -19.31 0.0116
2018-11-14 2018-09-30 13F AECOM COM 00766T100 184,149 -22,818 -11.02 6,007 -11.52 0.0123
2018-08-14 2018-06-30 13F AECOM COM 00766T100 206,967 -36,785 -15.09 6,789 -21.83 0.0148
2018-05-14 2018-03-31 13F AECOM COM 00766T100 243,752 0 0.00 8,685 -4.68 0.0196
2018-02-14 2017-12-31 13F AECOM COM 00766T100 243,752 -75,232 -23.58 9,111 -22.83 0.0201
2017-11-14 2017-09-30 13F AECOM COM 00766T100 318,984 61,361 23.82 11,806 43.07 0.0277
2017-08-14 2017-06-30 13F AECOM COM 00766T100 257,623 0 0.00 8,252 -10.08 0.0211
2017-05-11 2017-03-31 13F AECOM COM 00766T100 257,623 257,623 9,177 0.0241
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.