AECOM
MX ˙ BMV ˙ US00766T1007
SecurityMX:ACM / AECOM
InstitutionLord, Abbett & Co. Llc
Latest Disclosed Ownership1,005,061 shares
Latest Disclosed Value $ 85,249
Lord, Abbett & Co. Llc reports 10.69% increase in ownership of ACM / AECOM

On May 14, 2026 - Lord, Abbett & Co. Llc filed a 13F-HR form disclosing ownership of 1,005,061 shares of AECOM (MX:ACM) valued at $85,249 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 907,995 shares of AECOM. This represents a change in shares of 10.69% 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 1,005,061 97,066 10.69 85 -1.16 0.2783
2026-02-13 2025-12-31 13F AECOM COM 00766T100 907,995 37,682 4.33 87 -23.89 0.2655
2025-11-13 2025-09-30 13F AECOM COM 00766T100 870,313 157,550 22.10 114 41.25 0.3381
2025-08-14 2025-06-30 13F AECOM COM 00766T100 712,763 712,763 80 0.2588
2024-05-09 2024-03-31 13F AECOM COM 00766T100 0 -161,860 -100.00 0 -100.00
2024-10-07 2023-12-31 13F/A-1 AECOM COM 00766T100 161,860 -84,230 -34.23 15 -30.00 0.0525
2024-02-12 2023-12-31 13F AECOM COM 00766T100 161,860 -84,230 15 0.0537
2024-10-07 2023-09-30 13F/A-1 AECOM COM 00766T100 246,090 0 0.00 20 0.00 0.0760
2023-11-13 2023-09-30 13F AECOM COM 00766T100 246,090 0 20 0.0766
2024-10-07 2023-06-30 13F/A-1 AECOM COM 00766T100 246,090 -14,500 -5.56 21 -4.76 0.0717
2023-08-14 2023-06-30 13F AECOM COM 00766T100 246,090 -14,500 21 0.0718
2024-10-07 2023-03-31 13F/A-1 AECOM COM 00766T100 260,590 -70,365 -21.26 22 -25.00 0.0792
2023-05-12 2023-03-31 13F AECOM COM 00766T100 260,590 -70,365 22 0.0777
2024-10-07 2022-12-31 13F/A-1 AECOM COM 00766T100 330,955 -8,009 -2.36 28 -99.88 0.1004
2023-02-10 2022-12-31 13F AECOM COM 00766T100 330,955 -8,009 28 0.1007
2022-11-14 2022-09-30 13F AECOM COM COM 00766T100 338,964 36,764 12.17 23,175 17.59 0.0846
2022-08-12 2022-06-30 13F AECOM COM COM 00766T100 302,200 9,530 3.26 19,709 -12.33 0.0697
2022-05-13 2022-03-31 13F AECOM COM COM 00766T100 292,670 292,670 22,480 0.0599
2018-11-14 2018-09-30 13F AECOM COM COM 00766T100 0 -1,382,500 -100.00 0 -100.00
2018-08-14 2018-06-30 13F AECOM COM COM 00766T100 1,382,500 -526,629 -27.58 45,664 -32.87 0.1335
2018-05-15 2018-03-31 13F AECOM COM COM 00766T100 1,909,129 10,709 0.56 68,022 -3.55 0.2020
2018-02-14 2017-12-31 13F AECOM COM COM 00766T100 1,898,420 56,215 3.05 70,526 4.00 0.2007
2017-11-14 2017-09-30 13F AECOM COM COM 00766T100 1,842,205 -239,040 -11.49 67,812 0.78 0.1980
2017-08-24 2017-06-30 13F/A-1 AECOM COM COM 00766T100 2,081,245 -325,475 -13.52 67,287 -21.44 0.1999
2017-08-14 2017-06-30 13F AECOM COM COM 00766T100 2,081,245 -325,475 67,287
2017-05-15 2017-03-31 13F AECOM COM COM 00766T100 2,406,720 -735,185 -23.40 85,655 -25.02 0.2563
2017-02-14 2016-12-31 13F AECOM COM COM 00766T100 3,141,905 -387,787 -10.99 114,240 8.86 0.3468
2016-11-10 2016-09-30 13F AECOM COM COM 00766T100 3,529,692 -11,933 -0.34 104,938 -6.74 0.3200
2016-08-12 2016-06-30 13F AECOM COM COM 00766T100 3,541,625 -136,582 -3.71 112,517 -0.65 0.3524
2016-05-16 2016-03-31 13F AECOM COM COM 00766T100 3,678,207 11,401 0.31 113,252 2.85 0.3562
2016-02-16 2015-12-31 13F AECOM COM COM 00766T100 3,666,806 653,516 21.69 110,114 32.83 0.3312
2015-11-16 2015-09-30 13F AECOM COM COM 00766T100 3,013,290 1,133,686 60.32 82,896 33.32 0.2501
2015-08-14 2015-06-30 13F AECOM COM COM 00766T100 1,879,604 614,781 48.61 62,177 59.50 0.1639
2015-05-15 2015-03-31 13F AECOM COM COM 00766T100 1,264,823 1,264,823 38,982 0.0987
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.