O'Reilly Automotive, Inc.
US ˙ NasdaqGS ˙ US67103H1077

SecurityORLY / O'Reilly Automotive, Inc.
InstitutionEnterprise Financial Services Corp
Latest Disclosed Ownership4,109 shares
Latest Disclosed Value $ 379,301
Enterprise Financial Services Corp reports 0.22% decrease in ownership of ORLY / O'Reilly Automotive, Inc.

On May 5, 2026 - Enterprise Financial Services Corp filed a 13F-HR form disclosing ownership of 4,109 shares of O'Reilly Automotive, Inc. (US:ORLY) valued at $379,302 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 14, 2026 disclosing 4,118 shares of O'Reilly Automotive, Inc.. This represents a change in shares of -0.22% during the quarter. The current value of the position is $359,044 USD.

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)
2026-05-05 2026-03-31 13F OREILLY AUTOMOTIVE COM 67103H107 4,109 -9 -0.22 379 1.07 0.1067
2026-01-14 2025-12-31 13F OREILLY AUTOMOTIVE COM 67103H107 4,118 11 0.27 376 -15.16 0.1907
2025-10-15 2025-09-30 13F OREILLY AUTOMOTIVE COM 67103H107 4,107 -198 -4.60 443 13.92 0.2282
2025-08-12 2025-06-30 13F OREILLY AUTOMOTIVE COM 67103H107 4,305 4,015 1,384.48 388 -6.51 0.2071
2025-05-14 2025-03-31 13F OREILLY AUTOMOTIVE COM 67103H107 290 -3 -1.02 415 19.60 0.2456
2025-02-07 2024-12-31 13F OREILLY AUTOMOTIVE COM 67103H107 293 -2 -0.68 347 2.36 0.1933
2024-11-12 2024-09-30 13F OREILLY AUTOMOTIVE COM 67103H107 295 -2 -0.67 340 8.31 0.1980
2024-08-13 2024-06-30 13F OREILLY AUTOMOTIVE COM 67103H107 297 -25 -7.76 314 -13.77 0.1931
2024-05-14 2024-03-31 13F OREILLY AUTOMOTIVE COM 67103H107 322 322 363 0.2188
2021-11-15 2021-09-30 13F O'REILLY AUTOMOTIVE COMMON STOCK 67103H107 0 -120 -100.00 0 -100.00
2021-08-16 2021-06-30 13F O'REILLY AUTOMOTIVE COMMON STOCK 67103H107 120 0 0.00 68 11.48 0.0109
2021-05-13 2021-03-31 13F O'REILLY AUTOMOTIVE COMMON STOCK 67103H107 120 7 6.19 61 19.61 0.0109
2021-02-12 2020-12-31 13F O'REILLY AUTOMOTIVE COMMON STOCK 67103H107 113 2 1.80 51 0.00 0.0097
2020-11-13 2020-09-30 13F O'REILLY AUTOMOTIVE COMMON STOCK 67103H107 111 0 0.00 51 8.51 0.0105
2020-08-04 2020-06-30 13F O'REILLY AUTOMOTIVE COMMON STOCK 67103H107 111 -11 -9.02 47 27.03 0.0101
2020-05-15 2020-03-31 13F O'REILLY AUTOMOTIVE COMMON STOCK 67103H107 122 2 1.67 37 -30.19 0.0093
2020-01-28 2019-12-31 13F O'REILLY AUTOMOTIVE COMMON STOCK 67103H107 120 0 0.00 53 10.42 0.0115
2019-10-31 2019-09-30 13F O'REILLY AUTOMOTIVE COMMON STOCK 67103H107 120 0 0.00 48 9.09 0.0109
2019-07-30 2019-06-30 13F O'REILLY AUTOMOTIVE COMMON STOCK 67103H107 120 0 0.00 44 -6.38 0.0096
2019-04-26 2019-03-31 13F O'REILLY AUTOMOTIVE COMMON STOCK 67103H107 120 11 10.09 47 23.68 0.0103
2019-01-25 2018-12-31 13F O'REILLY AUTOMOTIVE COMMON STOCK 67103H107 109 -51 -31.88 38 -32.14 0.0240
2018-10-26 2018-09-30 13F O'REILLY AUTOMOTIVE COMMON STOCK 67103H107 160 0 0.00 56 27.27 0.0294
2018-07-27 2018-06-30 13F O'REILLY AUTOMOTIVE COMMON STOCK 67103H107 160 19 13.48 44 25.71 0.0223
2018-04-27 2018-03-31 13F O'REILLY AUTOMOTIVE COMMON STOCK 67103H107 141 0 0.00 35 2.94 0.0180
2018-01-26 2017-12-31 13F O'REILLY AUTOMOTIVE COMMON STOCK 67103H107 141 0 0.00 34 13.33 0.0165
2017-10-27 2017-09-30 13F O'REILLY AUTOMOTIVE COMMON STOCK 67103H107 141 0 0.00 30 -3.23 0.0148
2017-07-28 2017-06-30 13F O'REILLY AUTOMOTIVE COMMON STOCK 67103H107 141 116 464.00 31 342.86 0.0155
2017-04-27 2017-03-31 13F O'REILLY AUTOMOTIVE COMMON STOCK 67103H107 25 0 0.00 7 0.00 0.0035
2017-01-26 2016-12-31 13F O'REILLY AUTOMOTIVE COMMON STOCK 67103H107 25 0 0.00 7 0.00 0.0035
2016-10-28 2016-09-30 13F O'REILLY AUTOMOTIVE COMMON STOCK 67103H107 25 0 0.00 7 0.00 0.0040
2016-07-29 2016-06-30 13F O'REILLY AUTOMOTIVE COMMON STOCK 67103H107 25 0 0.00 7 0.00 0.0041
2016-04-29 2016-03-31 13F O'REILLY AUTOMOTIVE COMMON STOCK 67103H107 25 -1 -3.85 7 0.00 0.0042
2016-01-29 2015-12-31 13F O'REILLY AUTOMOTIVE COMMON STOCK 67103H107 26 12 85.71 7 75.00 0.0042
2015-10-29 2015-09-30 13F O'REILLY AUTOMOTIVE COMMON STOCK 67103H107 14 4 40.00 4 100.00 0.0026
2015-07-27 2015-06-30 13F O'REILLY AUTOMOTIVE COMMON STOCK 67103H107 10 0 0.00 2 0.00 0.0012
2015-04-29 2015-03-31 13F O'REILLY AUTOMOTIVE COMMON STOCK 67103H107 10 0 0.00 2 0.00 0.0012
2015-01-23 2014-12-31 13F O'REILLY AUTOMOTIVE COMMON STOCK 67103H107 10 0 0.00 2 0.00 0.0012
2014-10-24 2014-09-30 13F O'REILLY AUTOMOTIVE COMMON STOCK 67103H107 10 -9 -47.37 2 -33.33 0.0013
2014-07-24 2014-06-30 13F O'REILLY AUTOMOTIVE COMMON STOCK 67103H107 19 0 0.00 3 0.00 0.0018
2014-04-24 2014-03-31 13F O'REILLY AUTOMOTIVE COMMON STOCK 67103H107 19 0 0.00 3 50.00 0.0018
2014-01-30 2013-12-31 13F O'REILLY AUTOMOTIVE COMMON STOCK 67103H107 19 0 0.00 2 0.00 0.0012
2013-10-25 2013-09-30 13F O'REILLY AUTOMOTIVE COMMON STOCK 67103H107 19 0 0.00 2 0.00 0.0013
2013-07-25 2013-06-30 13F O'REILLY AUTOMOTIVE COMMON STOCK 67103H107 19 19 2 0.0014
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.