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

SecurityORLY / O'Reilly Automotive, Inc.
InstitutionSei Investments Co
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Sei Investments Co closes position in ORLY / O'Reilly Automotive, Inc.

On May 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 0 shares of O'Reilly Automotive, Inc. (US:ORLY) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 476,194 shares of O'Reilly Automotive, Inc.. This represents a change in shares of -100.00% during the quarter. The current value of the position is $0 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)
2026-05-13 2026-03-31 13F OREILLY AUTOMOTIVE COM 67103H107 0 -476,194 -100.00 0 -100.00
2026-02-13 2025-12-31 13F OREILLY AUTOMOTIVE COM 67103H107 476,194 -21,360 -4.29 43,434 -19.03 0.0429
2025-11-13 2025-09-30 13F OREILLY AUTOMOTIVE COM 67103H107 497,554 -62,799 -11.21 53,641 6.22 0.0577
2025-08-14 2025-06-30 13F OREILLY AUTOMOTIVE COM 67103H107 560,353 467,437 503.07 50,502 -62.06 0.0585
2025-05-14 2025-03-31 13F/A-1 OREILLY AUTOMOTIVE COM 67103H107 92,916 -23,367 -20.09 133,111 -3.47 0.1713
2025-05-13 2025-03-31 13F OREILLY AUTOMOTIVE COM 67103H107 115,982 -301 141,338 0.1537
2025-02-11 2024-12-31 13F OREILLY AUTOMOTIVE COM 67103H107 116,283 25,272 27.77 137,891 31.57 0.1771
2024-11-12 2024-09-30 13F OREILLY AUTOMOTIVE COM 67103H107 91,011 -25,575 -21.94 104,805 -14.88 0.1361
2024-08-13 2024-06-30 13F OREILLY AUTOMOTIVE COM 67103H107 116,586 1,917 1.67 123,125 -4.89 0.1744
2024-05-07 2024-03-31 13F OREILLY AUTOMOTIVE COM 67103H107 114,669 19,540 20.54 129,449 43.23 0.1897
2024-02-14 2023-12-31 13F OREILLY AUTOMOTIVE COM 67103H107 95,129 13,867 17.06 90,380 22.37 0.1451
2023-11-14 2023-09-30 13F OREILLY AUTOMOTIVE COM 67103H107 81,262 7,336 9.92 73,858 4.57 0.1327
2023-08-11 2023-06-30 13F OREILLY AUTOMOTIVE COM 67103H107 73,926 5,651 8.28 70,627 21.84 0.1232
2023-05-12 2023-03-31 13F OREILLY AUTOMOTIVE COM 67103H107 68,275 46,300 210.69 57,966 212.57 0.1077
2023-02-10 2022-12-31 13F OREILLY AUTOMOTIVE COM 67103H107 21,975 4,105 22.97 18,546 47.55 0.0412
2022-11-14 2022-09-30 13F OREILLY AUTOMOTIVE COM 67103H107 17,870 5,649 46.22 12,569 60.28 0.0280
2022-08-15 2022-06-30 13F OREILLY AUTOMOTIVE COM 67103H107 12,221 -3,629 -22.90 7,842 -28.02 0.0169
2022-05-13 2022-03-31 13F OREILLY AUTOMOTIVE COM 67103H107 15,850 5,376 51.33 10,894 47.70 0.0219
2022-02-14 2021-12-31 13F OREILLY AUTOMOTIVE COM 67103H107 10,474 -5,285 -33.54 7,376 -24.31 0.0138
2021-11-12 2021-09-30 13F OREILLY AUTOMOTIVE COM 67103H107 15,759 -6,042 -27.71 9,745 -22.36 0.0204
2021-08-06 2021-06-30 13F OREILLY AUTOMOTIVE COM 67103H107 21,801 2,881 15.23 12,551 39.58 0.0278
2021-05-12 2021-03-31 13F OREILLY AUTOMOTIVE COM 67103H107 18,920 1,715 9.97 8,992 18.16 0.0227
2021-02-08 2020-12-31 13F OREILLY AUTOMOTIVE COM 67103H107 17,205 341 2.02 7,610 0.73 0.0197
2020-12-04 2020-09-30 13F/A-1 OREILLY AUTOMOTIVE COM 67103H107 16,864 6,762 66.94 7,555 80.61 0.0219
2020-11-06 2020-09-30 13F OREILLY AUTOMOTIVE COM 67103H107 18,730 8,628 8,415 20,261.4490
2020-08-17 2020-06-30 13F/A-1 OREILLY AUTOMOTIVE COM 67103H107 10,102 -1,117 -9.96 4,183 21.00 0.0130
2020-08-11 2020-06-30 13F OREILLY AUTOMOTIVE COM 67103H107 26,619 15,400 11,438 31,026.1838
2020-05-14 2020-03-31 13F O REILLY AUTOMOTIVE INC COM 67103H107 11,219 -14,706 -56.73 3,457 -69.51 0.0127
2020-02-06 2019-12-31 13F O REILLY AUTOMOTIVE INC COM 67103H107 25,925 -4,488 -14.76 11,339 -7.11 0.0338
2019-11-12 2019-09-30 13F O REILLY AUTOMOTIVE INC COM 67103H107 30,413 -5,012 -14.15 12,207 -5.98 0.0312
2019-08-14 2019-06-30 13F O REILLY AUTOMOTIVE INC COM 67103H107 35,425 -56,403 -61.42 12,983 -63.64 0.0424
2019-05-15 2019-03-31 13F O REILLY AUTOMOTIVE INC COM 67103H107 91,828 -4,732 -4.90 35,704 7.31 0.1199
2019-02-13 2018-12-31 13F O REILLY AUTOMOTIVE INC COM 67103H107 96,560 9,178 10.50 33,273 9.77 0.1185
2018-11-08 2018-09-30 13F O REILLY AUTOMOTIVE INC COM 67103H107 87,382 -5,324 -5.74 30,312 19.53 0.1099
2018-08-03 2018-06-30 13F O REILLY AUTOMOTIVE INC COM 67103H107 92,706 -4,288 -4.42 25,360 5.69 0.0862
2018-05-11 2018-03-31 13F O REILLY AUTOMOTIVE INC COM 67103H107 96,994 16,721 20.83 23,994 24.28 0.0920
2018-02-08 2017-12-31 13F O REILLY AUTOMOTIVE INC COM 67103H107 80,273 11,543 16.79 19,307 30.43 0.0670
2017-11-06 2017-09-30 13F O REILLY AUTOMOTIVE INC COM 67103H107 68,730 5,354 8.45 14,803 6.78 0.0526
2017-07-31 2017-06-30 13F O REILLY AUTOMOTIVE INC COM 67103H107 63,376 -76,956 -54.84 13,863 -63.39 0.0553
2017-05-05 2017-03-31 13F O REILLY AUTOMOTIVE INC COM 67103H107 140,332 24,335 20.98 37,868 17.26 0.1659
2017-02-02 2016-12-31 13F O REILLY AUTOMOTIVE INC COM 67103H107 115,997 2,037 1.79 32,295 1.17 0.1564
2016-11-04 2016-09-30 13F O REILLY AUTOMOTIVE INC COM 67103H107 113,960 -15,463 -11.95 31,921 -9.02 0.1622
2016-08-11 2016-06-30 13F O REILLY AUTOMOTIVE INC COM 67103H107 129,423 -6,961 -5.10 35,087 -5.99 0.2104
2016-05-10 2016-03-31 13F/A-1 O REILLY AUTOMOTIVE INC COM 67103H107 136,384 19,554 16.74 37,322 26.05 0.2323
2016-02-03 2015-12-31 13F O REILLY AUTOMOTIVE INC COM 67103H107 116,830 60,835 108.64 29,608 111.50 0.1805
2015-11-02 2015-09-30 13F/A-1 O REILLY AUTOMOTIVE COM 67103H107 55,995 4,333 8.39 13,999 19.91 0.1285
2015-10-30 2015-09-30 13F DIREXION SHS ETF TR COM 67103H107 55,995 13,999
2015-08-07 2015-06-30 13F/A-1 O REILLY AUTOMOTIVE INC COM 67103H107 51,662 2,873 5.89 11,675 10.64 0.1055
2015-08-04 2015-06-30 13F O REILLY AUTOMOTIVE INC COM 67103H107 51,662 2,873 11,675 0.1055
2015-05-14 2015-03-31 13F/A-1 O REILLY AUTOMOTIVE INC COM 67103H107 48,789 30,375 164.96 10,552 197.49 0.0916
2015-05-01 2015-03-31 13F O REILLY AUTOMOTIVE INC COM 67103H107 48,789 10,552
2015-02-10 2014-12-31 13F O REILLY AUTOMOTIVE INC COM 67103H107 18,414 18,414 3,547 0.0314
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.