AECOM
MX ˙ BMV ˙ US00766T1007
SecurityMX:ACM / AECOM
InstitutionOstrum Asset Management
Latest Disclosed Ownership4,072 shares
Latest Disclosed Value $ 345,387
Ostrum Asset Management reports 100.99% increase in ownership of ACM / AECOM

On May 14, 2026 - Ostrum Asset Management filed a 13F-HR form disclosing ownership of 4,072 shares of AECOM (MX:ACM) valued at $345,387 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 2,026 shares of AECOM. This represents a change in shares of 100.99% 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 Common Stock 00766T100 4,072 2,046 100.99 345 78.76 0.0194
2026-02-13 2025-12-31 13F AECOM Common Stock 00766T100 2,026 -673 -24.94 193 -45.17 0.0093
2025-11-14 2025-09-30 13F AECOM Common Stock 00766T100 2,699 -84 -3.02 352 12.10 0.0158
2025-08-13 2025-06-30 13F AECOM Common Stock 00766T100 2,783 -3,325 -54.44 314 -44.52 0.0147
2025-05-14 2025-03-31 13F AECOM Common Stock 00766T100 6,108 -904 -12.89 566 -24.43 0.0298
2025-02-13 2024-12-31 13F AECOM Common Stock 00766T100 7,012 409 6.19 749 9.99 0.0649
2024-11-13 2024-09-30 13F AECOM Common Stock 00766T100 6,603 -738 -10.05 682 5.26 0.0564
2024-08-13 2024-06-30 13F AECOM Common Stock 00766T100 7,341 -15 -0.20 647 -10.26 0.0564
2024-05-13 2024-03-31 13F AECOM Common Stock 00766T100 7,356 485 7.06 721 13.54 0.0570
2024-02-13 2023-12-31 13F AECOM Common Stock 00766T100 6,871 -785 -10.25 635 0.00 0.0552
2023-11-14 2023-09-30 13F AECOM Common Stock 00766T100 7,656 330 4.50 636 2.42 0.0588
2023-08-11 2023-06-30 13F AECOM Common Stock 00766T100 7,326 5 0.07 620 0.49 0.0520
2023-05-12 2023-03-31 13F AECOM Common Stock 00766T100 7,321 7,321 617 0.0538
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.