AECOM
MX ˙ BMV ˙ US00766T1007
SecurityMX:ACM / AECOM
InstitutionTower Research Capital LLC (TRC)
Latest Disclosed Ownership5,172 shares
Latest Disclosed Value $ 438,689
Tower Research Capital LLC (TRC) reports 9.79% decrease in ownership of ACM / AECOM

On May 15, 2026 - Tower Research Capital LLC (TRC) filed a 13F-HR form disclosing ownership of 5,172 shares of AECOM (MX:ACM) valued at $438,689 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 5,733 shares of AECOM. This represents a change in shares of -9.79% 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 5,172 -561 -9.79 439 -19.78 0.0075
2026-02-17 2025-12-31 13F AECOM COM 00766T100 5,733 1,902 49.65 547 9.42 0.0132
2025-11-14 2025-09-30 13F AECOM COM 00766T100 3,831 216 5.98 500 22.60 0.0138
2025-08-15 2025-06-30 13F AECOM COM 00766T100 3,615 -1,964 -35.20 408 -20.97 0.0110
2025-05-15 2025-03-31 13F AECOM COM 00766T100 5,579 -3,335 -37.41 515 -45.90 0.0153
2025-02-13 2024-12-31 13F AECOM COM 00766T100 8,914 6,411 256.13 952 268.99 0.0189
2024-11-14 2024-09-30 13F AECOM COM 00766T100 2,503 -6,209 -71.27 258 -66.36 0.0068
2024-08-13 2024-06-30 13F AECOM COM 00766T100 8,712 2,074 31.24 768 17.82 0.0130
2024-05-15 2024-03-31 13F AECOM COM 00766T100 6,638 -12,556 -65.42 651 -63.30 0.0157
2024-02-13 2023-12-31 13F AECOM COM 00766T100 19,194 17,427 986.25 1,774 1,115.07 0.0219
2023-11-14 2023-09-30 13F AECOM COM 00766T100 1,767 -17,485 -90.82 147 -91.04 0.0046
2023-08-14 2023-06-30 13F AECOM COM 00766T100 19,252 12,425 182.00 1,630 0.0543
2023-05-09 2023-03-31 13F AECOM COM 00766T100 6,827 2,789 69.07 1 0.0183
2023-02-10 2022-12-31 13F AECOM COM 00766T100 4,038 -2,823 -41.15 0 -100.00 0.0142
2022-11-10 2022-09-30 13F AECOM COM 00766T100 6,861 -9,955 -59.20 469 -57.25 0.0076
2022-08-15 2022-06-30 13F AECOM COM 00766T100 16,816 1,026 6.50 1,097 -9.56 0.0246
2022-05-12 2022-03-31 13F AECOM COM 00766T100 15,790 -1,638 -9.40 1,213 -10.01 0.0116
2022-02-14 2021-12-31 13F AECOM COM 00766T100 17,428 13,626 358.39 1,348 461.67 0.0233
2021-11-15 2021-09-30 13F AECOM COM 00766T100 3,802 -9,348 -71.09 240 -71.19 0.0061
2021-08-16 2021-06-30 13F AECOM COM 00766T100 13,150 -3,711 -22.01 833 -22.94 0.0217
2021-05-17 2021-03-31 13F AECOM COM 00766T100 16,861 7,879 87.72 1,081 141.83 0.0182
2021-02-16 2020-12-31 13F AECOM COM 00766T100 8,982 -639 -6.64 447 11.19 0.0137
2020-11-16 2020-09-30 13F AECOM COM 00766T100 9,621 -23,716 -71.14 402 -67.92 0.0045
2020-08-13 2020-06-30 13F AECOM COM 00766T100 33,337 14,086 73.17 1,253 117.91 0.0514
2020-05-15 2020-03-31 13F AECOM COM 00766T100 19,251 9,972 107.47 575 43.75 0.0350
2020-02-07 2019-12-31 13F AECOM COM 00766T100 9,279 6,094 191.33 400 233.33 0.0332
2019-11-05 2019-09-30 13F AECOM COM 00766T100 3,185 -3,624 -53.22 120 -53.49 0.0082
2019-08-13 2019-06-30 13F AECOM COM 00766T100 6,809 -934 -12.06 258 12.17 0.0174
2019-05-14 2019-03-31 13F AECOM COM 00766T100 7,743 -2,300 -22.90 230 -13.53 0.0140
2019-02-14 2018-12-31 13F AECOM COM 00766T100 10,043 -10,494 -51.10 266 -60.30 0.0192
2018-11-13 2018-09-30 13F AECOM COM 00766T100 20,537 18,781 1,069.53 670 1,055.17 0.0491
2018-08-14 2018-06-30 13F AECOM COM 00766T100 1,756 -15,784 -89.99 58 -90.72 0.0032
2018-05-15 2018-03-31 13F AECOM COM 00766T100 17,540 16,477 1,550.05 625 1,502.56 0.0535
2018-02-09 2017-12-31 13F AECOM COM 00766T100 1,063 1,063 39 0.0050
2017-11-14 2017-09-30 13F AECOM COM 00766T100 0 -381 -100.00 0 -100.00
2017-08-14 2017-06-30 13F AECOM COM 00766T100 381 -355 -48.23 12 -53.85 0.0014
2017-05-19 2017-03-31 13F AECOM COM 00766T100 736 -1,598 -68.47 26 -69.41 0.0026
2017-02-03 2016-12-31 13F AECOM COM 00766T100 2,334 -9,558 -80.37 85 -75.99 0.0092
2016-11-08 2016-09-30 13F AECOM COM 00766T100 11,892 5,505 86.19 354 74.38 0.0352
2016-08-10 2016-06-30 13F AECOM COM 00766T100 6,387 4,362 215.41 203 222.22 0.0194
2016-05-16 2016-03-31 13F AECOM COM 00766T100 2,025 1,537 314.96 63 320.00 0.0094
2016-02-10 2015-12-31 13F AECOM COM 00766T100 488 188 62.67 15 87.50 0.0024
2015-11-13 2015-09-30 13F AECOM COM 00766T100 300 300 0.00 8 0.0008
2015-07-30 2015-06-30 13F AECOM COM 00766T100 0 -6,419 -100.00 0 -100.00
2015-05-12 2015-03-31 13F AECOM COM 00766T100 6,419 2,111 49.00 198 51.15 0.0245
2015-02-05 2014-12-31 13F AECOM TECHNOLOGY CORP DELAWA COM 00766T100 4,308 3,817 777.39 131 670.59 0.0392
2014-10-31 2014-09-30 13F AECOM TECHNOLOGY CORP DELAWA COM 00766T100 491 -16,784 -97.16 17 -96.94 0.0019
2014-08-14 2014-06-30 13F AECOM TECHNOLOGY CORP DELAWA COM 00766T100 17,275 17,241 50,708.82 556 55,500.00 0.0715
2014-05-02 2014-03-31 13F AECOM TECHNOLOGY CORP DELAWA COM 00766T100 34 -3,252 -98.97 1 -98.97 0.0001
2014-01-31 2013-12-31 13F AECOM TECHNOLOGY CORP DELAWA COM 00766T100 3,286 -652 -16.56 97 -21.14 0.0162
2013-11-06 2013-09-30 13F AECOM TECHNOLOGY CORP DELAWA COM 00766T100 3,938 3,938 123 0.0133
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.