AECOM
MX ˙ BMV ˙ US00766T1007
SecurityMX:ACM / AECOM
InstitutionOMERS ADMINISTRATION Corp
Latest Disclosed Ownership24,211 shares
Latest Disclosed Value $ 2,053,577
OMERS ADMINISTRATION Corp reports 398.37% increase in ownership of ACM / AECOM

On May 15, 2026 - OMERS ADMINISTRATION Corp filed a 13F-HR form disclosing ownership of 24,211 shares of AECOM (MX:ACM) valued at $2,053,577 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 4,858 shares of AECOM. This represents a change in shares of 398.37% 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 24,211 19,353 398.37 2,054 343.41 0.0132
2026-02-13 2025-12-31 13F AECOM COM 00766T100 4,858 -15,700 -76.37 463 -82.74 0.0033
2025-11-14 2025-09-30 13F AECOM COM 00766T100 20,558 -600 -2.84 2,682 12.36 0.0192
2025-08-13 2025-06-30 13F AECOM COM 00766T100 21,158 16,300 335.53 2,388 430.44 0.0188
2025-05-14 2025-03-31 13F AECOM COM 00766T100 4,858 -811 -14.31 450 -25.62 0.0039
2025-02-14 2024-12-31 13F AECOM COM 00766T100 5,669 953 20.21 606 24.23 0.0053
2024-11-13 2024-09-30 13F AECOM COM 00766T100 4,716 0 0.00 487 17.35 0.0045
2024-08-13 2024-06-30 13F AECOM COM 00766T100 4,716 4,716 416 0.0040
2017-02-09 2016-12-31 13F AECOM COM 00766T100 0 -8,600 -100.00 0 -100.00
2016-11-14 2016-09-30 13F AECOM COM 00766T100 8,600 8,600 256 0.0046
2016-05-12 2016-03-31 13F AECOM COM 00766T100 0 0 0 0.0000
2016-02-11 2015-12-31 13F AECOM COM 00766T100 0 -11,400 -100.00 0 -100.00
2015-11-12 2015-09-30 13F AECOM COM 00766T100 11,400 -113,800 -90.89 314 -92.42 0.0092
2015-08-11 2015-06-30 13F AECOM COM 00766T100 125,200 117,600 1,547.37 4,142 1,670.09 0.1645
2015-05-12 2015-03-31 13F AECOM COM 00766T100 7,600 7,600 0.00 234 0.0088
2014-11-10 2014-09-30 13F AECOM TECHNOLOGY CORP DELAWA COM 00766T100 0 -34,600 -100.00 0 -100.00
2014-08-11 2014-06-30 13F AECOM TECHNOLOGY CORP DELAWA COM 00766T100 34,600 0 0.00 1,114 0.09 0.0362
2014-05-08 2014-03-31 13F AECOM TECHNOLOGY CORP DELAWA COM 00766T100 34,600 7,500 27.68 1,113 39.47 0.0360
2014-02-13 2013-12-31 13F AECOM TECHNOLOGY CORP DELAWA COM 00766T100 27,100 4,300 18.86 798 11.92 0.0293
2013-11-14 2013-09-30 13F AECOM TECHNOLOGY CORP DELAWA COM 00766T100 22,800 9,800 75.38 713 72.64 0.0674
2013-08-13 2013-06-30 13F AECOM TECHNOLOGY CORP DELAWA COM 00766T100 13,000 13,000 413 0.0385
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.