O'Reilly Automotive, Inc.
MX ˙ BMV ˙ US67103H1077
SecurityMX:ORLY / O'Reilly Automotive, Inc.
InstitutionAtlas Brown,Inc.
Latest Disclosed Ownership13,509 shares
Latest Disclosed Value $ 1,247,015
Atlas Brown,Inc. reports 28.10% increase in ownership of ORLY / O'Reilly Automotive, Inc.

On April 17, 2026 - Atlas Brown,Inc. filed a 13F-HR form disclosing ownership of 13,509 shares of O'Reilly Automotive, Inc. (MX:ORLY) valued at $1,247,015 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 9, 2026 disclosing 10,546 shares of O'Reilly Automotive, Inc.. This represents a change in shares of 28.10% 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)
2026-04-17 2026-03-31 13F OREILLY AUTOMOTIVE INC COM Stock 67103H107 13,509 2,963 28.10 1,247 29.76 0.3726
2026-01-09 2025-12-31 13F OREILLY AUTOMOTIVE INC COM Stock 67103H107 10,546 -374 -3.42 962 -18.35 0.2860
2025-10-17 2025-09-30 13F OREILLY AUTOMOTIVE INC COM Stock 67103H107 10,920 255 2.39 1,177 22.48 0.3480
2025-07-08 2025-06-30 13F OREILLY AUTOMOTIVE INC COM Stock 67103H107 10,665 9,958 1,408.49 961 -5.04 0.3086
2025-04-08 2025-03-31 13F OREILLY AUTOMOTIVE INC COM Stock 67103H107 707 -3 -0.42 1,013 20.33 0.3554
2025-01-10 2024-12-31 13F OREILLY AUTOMOTIVE INC COM Stock 67103H107 710 1 0.14 842 3.06 0.2880
2024-10-18 2024-09-30 13F OREILLY AUTOMOTIVE INC COM Stock 67103H107 709 -5 -0.70 816 8.22 0.2828
2024-07-23 2024-06-30 13F OREILLY AUTOMOTIVE INC COM Stock 67103H107 714 101 16.48 754 8.96 0.2704
2024-04-08 2024-03-31 13F OREILLY AUTOMOTIVE INC COM Stock 67103H107 613 213 53.25 692 82.11 0.2519
2024-01-18 2023-12-31 13F OREILLY AUTOMOTIVE INC COM Stock 67103H107 400 11 2.83 380 7.65 0.1575
2023-10-17 2023-09-30 13F OREILLY AUTOMOTIVE INC COM Stock 67103H107 389 0 0.00 354 -4.85 0.1613
2023-07-18 2023-06-30 13F OREILLY AUTOMOTIVE INC COM Stock 67103H107 389 0 0.00 372 12.42 0.1635
2023-04-21 2023-03-31 13F OREILLY AUTOMOTIVE INC COM Stock 67103H107 389 -15 -3.71 330 -2.94 0.1522
2023-01-05 2022-12-31 13F OREILLY AUTOMOTIVE INC COM Stock 67103H107 404 -5 -1.22 341 18.06 0.1676
2022-10-06 2022-09-30 13F OREILLY AUTOMOTIVE INC COM Stock 67103H107 409 0 0.00 288 11.63 0.1467
2022-07-15 2022-06-30 13F OREILLY AUTOMOTIVE INC COM Stock 67103H107 409 0 0.00 258 -7.86 0.1219
2022-04-14 2022-03-31 13F OREILLY AUTOMOTIVE INC COM Stock 67103H107 409 13 3.28 280 0.00 0.1142
2022-01-18 2021-12-31 13F OREILLY AUTOMOTIVE INC COM Stock 67103H107 396 0 0.00 280 15.70 0.1085
2021-10-14 2021-09-30 13F OREILLY AUTOMOTIVE INC COM Stock 67103H107 396 5 1.28 242 9.50 0.1052
2021-07-19 2021-06-30 13F OREILLY AUTOMOTIVE INC COM Stock 67103H107 391 391 221 0.0955
2019-04-12 2019-03-31 13F O REILLY AUTOMOTIVE INC NEW COM Stock 67103H107 0 -775 -100.00 0 -100.00
2019-01-28 2018-12-31 13F O REILLY AUTOMOTIVE INC NEW COM Stock 67103H107 775 50 6.90 267 5.95 0.2059
2018-10-26 2018-09-30 13F O REILLY AUTOMOTIVE INC NEW COM Stock 67103H107 725 0 0.00 252 20.57 0.1548
2018-07-11 2018-06-30 13F O REILLY AUTOMOTIVE INC NEW COM Stock 67103H107 725 725 209 0.0487
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.