O'Reilly Automotive, Inc.
MX ˙ BMV ˙ US67103H1077
SecurityMX:ORLY / O'Reilly Automotive, Inc.
InstitutionMercer Global Advisors Inc /adv
Latest Disclosed Ownership396,590 shares
Latest Disclosed Value $ 36,609,266
Mercer Global Advisors Inc /adv reports 5.58% decrease in ownership of ORLY / O'Reilly Automotive, Inc.

On May 15, 2026 - Mercer Global Advisors Inc /adv filed a 13F-HR form disclosing ownership of 396,590 shares of O'Reilly Automotive, Inc. (MX:ORLY) valued at $36,609,266 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 420,019 shares of O'Reilly Automotive, Inc.. This represents a change in shares of -5.58% 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 OREILLY AUTOMOTIVE COM 67103H107 396,590 -23,429 -5.58 36,609 -4.47 0.0542
2026-02-17 2025-12-31 13F OREILLY AUTOMOTIVE COM 67103H107 420,019 5,408 1.30 38,320 -14.27 0.0584
2025-11-14 2025-09-30 13F OREILLY AUTOMOTIVE COM 67103H107 414,611 13,104 3.26 44,699 23.52 0.0746
2025-08-14 2025-06-30 13F OREILLY AUTOMOTIVE COM 67103H107 401,507 377,678 1,584.95 36,188 6.01 0.0737
2025-05-15 2025-03-31 13F OREILLY AUTOMOTIVE COM 67103H107 23,829 513 2.20 34,137 23.47 0.0783
2025-02-14 2024-12-31 13F OREILLY AUTOMOTIVE COM 67103H107 23,316 -32,972 -58.58 27,648 -57.73 0.0675
2024-11-14 2024-09-30 13F OREILLY AUTOMOTIVE COM 67103H107 56,288 -402 -0.71 65,406 8.90 0.1531
2024-08-12 2024-06-30 13F OREILLY AUTOMOTIVE COM 67103H107 56,690 -808 -1.41 60,060 93,743.75 0.1637
2024-05-15 2024-03-31 13F OREILLY AUTOMOTIVE COM 67103H107 57,498 -4,736 -7.61 65 8.47 0.1845
2024-02-15 2023-12-31 13F OREILLY AUTOMOTIVE COM 67103H107 62,234 34,517 124.53 59 136.00 0.1779
2023-11-15 2023-09-30 13F/A-1 OREILLY AUTOMOTIVE COM 67103H107 27,717 589 2.17 25 0.00 0.0957
2023-11-14 2023-09-30 13F OREILLY AUTOMOTIVE COM 67103H107 27,717 589 25 0.0956
2023-08-14 2023-06-30 13F OREILLY AUTOMOTIVE COM 67103H107 27,128 17,681 187.16 26 212.50 0.1029
2023-05-16 2023-03-31 13F OREILLY AUTOMOTIVE COM 67103H107 9,447 -19,452 -67.31 8 -66.67 0.0364
2023-02-09 2022-12-31 13F OREILLY AUTOMOTIVE COM 67103H107 28,899 -6,572 -18.53 24 -99.90 0.1222
2022-11-15 2022-09-30 13F OREILLY AUTOMOTIVE COM 67103H107 35,471 27,310 334.64 24,949 383.98 0.1481
2022-08-10 2022-06-30 13F OREILLY AUTOMOTIVE COM 67103H107 8,161 846 11.57 5,155 2.87 0.0316
2022-05-10 2022-03-31 13F OREILLY AUTOMOTIVE COM 67103H107 7,315 5,286 260.52 5,011 249.69 0.0295
2022-02-04 2021-12-31 13F OREILLY AUTOMOTIVE COM 67103H107 2,029 97 5.02 1,433 21.34 0.0088
2021-11-10 2021-09-30 13F OREILLY AUTOMOTIVE COM 67103H107 1,932 152 8.54 1,181 17.16 0.0082
2021-08-10 2021-06-30 13F OREILLY AUTOMOTIVE COM 67103H107 1,780 232 14.99 1,008 28.24 0.0078
2021-08-10 2021-03-31 13F/A-1 OREILLY AUTOMOTIVE COM 67103H107 1,548 668 75.91 786 97.49 0.0071
2021-05-11 2021-03-31 13F OREILLY AUTOMOTIVE COM 67103H107 1,478 598 750 0.0072
2021-02-12 2020-12-31 13F OREILLY AUTOMOTIVE COM 67103H107 880 -105 -10.66 398 -12.33 0.0050
2020-12-10 2020-09-30 13F OREILLY AUTOMOTIVE COM 67103H107 985 163 19.83 454 30.84 0.0068
2020-08-10 2020-06-30 13F O REILLY AUTOMOTIVE INC COM 67103H107 822 65 8.59 347 52.19 0.0063
2020-05-18 2020-03-31 13F O REILLY AUTOMOTIVE INC COM 67103H107 757 -1,933 -71.86 228 -80.66 0.0050
2020-02-13 2019-12-31 13F O REILLY AUTOMOTIVE INC NEW COM COM 67103H107 2,690 -81 -2.92 1,179 6.79 0.0235
2019-11-12 2019-09-30 13F O REILLY AUTOMOTIVE INC NEW COM COM 67103H107 2,771 -9 -0.32 1,104 7.50 0.0260
2019-08-14 2019-06-30 13F O REILLY AUTOMOTIVE INC NEW COM COM 67103H107 2,780 -184 -6.21 1,027 -10.77 0.0272
2019-04-23 2019-03-31 13F/A-1 O REILLY AUTOMOTIVE INC NEW COM COM 67103H107 2,964 2,964 1,151 0.0414
2019-04-12 2019-03-31 13F O REILLY AUTOMOTIVE COM 67103H107 2,527 870 0.0464
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.