AECOM
MX ˙ BMV ˙ US00766T1007
SecurityMX:ACM / AECOM
InstitutionSteinberg Asset Management Llc
Latest Disclosed Ownership28,190 shares
Latest Disclosed Value $ 2,391,076
Steinberg Asset Management Llc reports 0.02% decrease in ownership of ACM / AECOM

On May 11, 2026 - Steinberg Asset Management Llc filed a 13F-HR form disclosing ownership of 28,190 shares of AECOM (MX:ACM) valued at $2,391,076 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 28,196 shares of AECOM. This represents a change in shares of -0.02% 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)
2026-05-11 2026-03-31 13F AECOM COM COM 00766T100 28,190 -6 -0.02 2,391 -11.02 1.5482
2026-02-17 2025-12-31 13F AECOM COM 00766T100 28,196 -900 -3.09 2,688 -29.21 1.9993
2025-11-14 2025-09-30 13F AECOM COM 00766T100 29,096 -418 -1.42 3,796 13.99 2.7268
2025-08-14 2025-06-30 13F AECOM COM 00766T100 29,514 -1,004 -3.29 3,331 17.71 2.4822
2025-05-15 2025-03-31 13F AECOM COM 00766T100 30,518 320 1.06 2,830 -12.28 2.3030
2025-02-14 2024-12-31 13F AECOM COM 00766T100 30,198 -320 -1.05 3,226 2.35 2.3805
2024-11-14 2024-09-30 13F AECOM COM 00766T100 30,518 -340 -1.10 3,152 15.89 2.4081
2024-08-14 2024-06-30 13F AECOM COM 00766T100 30,858 -346 -1.11 2,720 -11.14 2.1294
2024-05-15 2024-03-31 13F AECOM COM 00766T100 31,204 0 0.00 3,060 6.10 2.5954
2024-02-14 2023-12-31 13F AECOM COM 00766T100 31,204 0 0.00 2,884 11.31 2.5454
2023-11-14 2023-09-30 13F AECOM COM 00766T100 31,204 0 0.00 2,591 -1.93 2.3067
2023-08-14 2023-06-30 13F AECOM COM 00766T100 31,204 0 0.00 2,643 0.42 2.5350
2023-05-15 2023-03-31 13F AECOM COM 00766T100 31,204 0 0.00 2,631 -0.72 2.6675
2023-02-14 2022-12-31 13F AECOM COM 00766T100 31,204 0 0.00 2,650 24.24 2.8714
2022-11-14 2022-09-30 13F AECOM COM 00766T100 31,204 0 0.00 2,133 4.82 2.2719
2022-08-15 2022-06-30 13F AECOM COM 00766T100 31,204 0 0.00 2,035 -15.10 2.1478
2022-05-16 2022-03-31 13F AECOM COM 00766T100 31,204 0 0.00 2,397 -0.70 2.2039
2022-02-14 2021-12-31 13F AECOM COM 00766T100 31,204 419 1.36 2,414 24.18 2.9353
2021-11-15 2021-09-30 13F AECOM COM 00766T100 30,785 -145 -0.47 1,944 -0.72 2.1893
2021-08-16 2021-06-30 13F AECOM COM 00766T100 30,930 0 0.00 1,958 -1.26 2.0210
2021-05-17 2021-03-31 13F AECOM COM 00766T100 30,930 -510 -1.62 1,983 26.71 2.3236
2021-02-16 2020-12-31 13F AECOM COM 00766T100 31,440 -2,765 -8.08 1,565 9.36 1.9190
2020-11-16 2020-09-30 13F AECOM COM 00766T100 34,205 0 0.00 1,431 11.36 2.2238
2020-08-14 2020-06-30 13F AECOM COM 00766T100 34,205 0 0.00 1,285 25.86 2.2684
2020-05-15 2020-03-31 13F AECOM COM 00766T100 34,205 0 0.00 1,021 -30.78 1.7566
2020-02-14 2019-12-31 13F AECOM COM 00766T100 34,205 0 0.00 1,475 14.79 1.4062
2019-11-14 2019-09-30 13F AECOM COM 00766T100 34,205 0 0.00 1,285 -0.77 1.3143
2019-08-14 2019-06-30 13F AECOM COM 00766T100 34,205 -30 -0.09 1,295 27.46 1.2181
2019-05-15 2019-03-31 13F AECOM COM 00766T100 34,235 -26,225 -43.38 1,016 -36.58 0.9177
2019-02-14 2018-12-31 13F AECOM COM 00766T100 60,460 -34,960 -36.64 1,602 -48.59 1.2088
2018-11-14 2018-09-30 13F AECOM COM 00766T100 95,420 -20,260 -17.51 3,116 -18.45 1.8107
2018-08-14 2018-06-30 13F AECOM COM 00766T100 115,680 -63,125 -35.30 3,821 -40.03 1.9656
2018-05-15 2018-03-31 13F AECOM COM 00766T100 178,805 -25,010 -12.27 6,371 -15.86 2.8425
2018-02-14 2017-12-31 13F AECOM COM 00766T100 203,815 -74,270 -26.71 7,572 -26.03 3.1912
2017-11-14 2017-09-30 13F AECOM COM 00766T100 278,085 -5,405 -1.91 10,236 11.69 3.6049
2017-08-14 2017-06-30 13F AECOM COM 00766T100 283,490 -28,850 -9.24 9,165 -17.55 3.3573
2017-05-15 2017-03-31 13F AECOM COM 00766T100 312,340 24,450 8.49 11,116 6.19 3.7390
2017-02-14 2016-12-31 13F AECOM COM 00766T100 287,890 -86,175 -23.04 10,468 -5.87 3.9866
2016-11-14 2016-09-30 13F AECOM COM 00766T100 374,065 -62,315 -14.28 11,121 -19.79 3.0017
2016-08-15 2016-06-30 13F AECOM COM 00766T100 436,380 -173,780 -28.48 13,864 -26.20 3.6267
2016-05-16 2016-03-31 13F AECOM COM 00766T100 610,160 87,555 16.75 18,787 19.71 3.6638
2016-02-16 2015-12-31 13F AECOM COM 00766T100 522,605 -302,295 -36.65 15,694 -30.84 2.6926
2015-11-16 2015-09-30 13F AECOM COM 00766T100 824,900 -80,312 -8.87 22,693 -24.22 3.5250
2015-08-14 2015-06-30 13F AECOM COM 00766T100 905,212 -7,786 -0.85 29,944 6.41 3.6122
2015-05-15 2015-03-31 13F AECOM COM 00766T100 912,998 179,428 24.46 28,139 26.30 3.1316
2015-02-17 2014-12-31 13F AECOM TECHNOLOGY CORP DELAWA COM 00766T100 733,570 -1,942,925 -72.59 22,279 -75.34 1.7918
2014-11-14 2014-09-30 13F AECOM TECHNOLOGY CORP DELAWA COM 00766T100 2,676,495 2,676,495 90,332 5.4123
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.