Genuine Parts Company
MX ˙ BMV ˙ US3724601055
SecurityMX:GPC / Genuine Parts Company
InstitutionRhumbline Advisers
Latest Disclosed Ownership270,453 shares
Latest Disclosed Value $ 28,600,323
Rhumbline Advisers reports 1.72% increase in ownership of GPC / Genuine Parts Company

On May 12, 2026 - Rhumbline Advisers filed a 13F-HR form disclosing ownership of 270,453 shares of Genuine Parts Company (MX:GPC) valued at $28,600,323 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 265,881 shares of Genuine Parts Company. This represents a change in shares of 1.72% 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)
2026-05-12 2026-03-31 13F GENUINE PARTS CO COM COM 372460105 270,453 4,572 1.72 28,600 -12.52 0.0245
2026-02-13 2025-12-31 13F GENUINE PARTS CO COM COM 372460105 265,881 -5,512 -2.03 32,693 -13.09 0.0264
2025-11-06 2025-09-30 13F GENUINE PARTS CO COM COM 372460105 271,393 1,228 0.45 37,615 14.77 0.0302
2025-08-12 2025-06-30 13F GENUINE PARTS CO COM COM 372460105 270,165 2,493 0.93 32,774 2.77 0.0281
2025-05-29 2025-03-31 13F/A-1 GENUINE PARTS CO COM COM 372460105 267,672 23,598 9.67 31,890 11.91 0.0298
2025-04-08 2025-03-31 13F GENUINE PARTS CO COM COM 372460105 267,672 23,598 31,890 0.0298
2025-05-29 2024-12-31 13F/A-1 GENUINE PARTS CO COM COM 372460105 244,074 -8,369 -3.32 28,498 -19.18 0.0255
2025-01-30 2024-12-31 13F GENUINE PARTS CO COM COM 372460105 244,074 -8,369 28,498 0.0255
2024-11-12 2024-09-30 13F GENUINE PARTS CO COM COM 372460105 252,443 -6,397 -2.47 35,261 -1.51 0.0318
2024-08-01 2024-06-30 13F GENUINE PARTS CO COM COM 372460105 258,840 -8,962 -3.35 35,803 -13.71 0.0336
2024-05-09 2024-03-31 13F GENUINE PARTS CO COM COM 372460105 267,802 1,794 0.67 41,490 12.62 0.0398
2024-02-08 2023-12-31 13F GENUINE PARTS CO COM COM 372460105 266,008 -4,735 -1.75 36,842 -5.75 0.0386
2023-11-09 2023-09-30 13F GENUINE PARTS CO COM COM 372460105 270,743 860 0.32 39,090 -14.41 0.0454
2023-08-08 2023-06-30 13F GENUINE PARTS CO COM COM 372460105 269,883 -3,424 -1.25 45,672 101,393.33 0.0512
2023-05-11 2023-03-31 13F GENUINE PARTS CO COM COM 372460105 273,307 2,142 0.79 46 -99.90 0.0564
2023-02-14 2022-12-31 13F GENUINE PARTS CO COM COM 372460105 271,165 8,892 3.39 47,050 20.14 0.0632
2022-11-10 2022-09-30 13F GENUINE PARTS CO COM COM 372460105 262,273 5,799 2.26 39,163 14.81 0.0583
2022-08-11 2022-06-30 13F GENUINE PARTS CO COM COM 372460105 256,474 18,235 7.65 34,111 13.62 0.0498
2022-05-12 2022-03-31 13F GENUINE PARTS CO COM COM 372460105 238,239 7,451 3.23 30,023 -7.21 0.0386
2022-02-10 2021-12-31 13F GENUINE PARTS CO COM COM 372460105 230,788 2,695 1.18 32,356 17.01 0.0397
2021-11-12 2021-09-30 13F GENUINE PARTS CO COM COM 372460105 228,093 -4,415 -1.90 27,652 -5.96 0.0374
2021-08-05 2021-06-30 13F GENUINE PARTS CO COM COM 372460105 232,508 -16,333 -6.56 29,405 2.23 0.0386
2021-05-06 2021-03-31 13F GENUINE PARTS CO COM COM 372460105 248,841 -37,581 -13.12 28,764 0.00 0.0391
2021-02-10 2020-12-31 13F GENUINE PARTS CO COM COM 372460105 286,422 1,540 0.54 28,765 6.10 0.0397
2020-11-12 2020-09-30 13F GENUINE PARTS CO COM COM 372460105 284,882 1,303 0.46 27,112 9.94 0.0425
2020-08-13 2020-06-30 13F GENUINE PARTS CO COM COM 372460105 283,579 -14,951 -5.01 24,660 22.69 0.0412
2020-05-06 2020-03-31 13F GENUINE PARTS CO COM COM 372460105 298,530 25,334 9.27 20,100 -30.74 0.0421
2020-02-05 2019-12-31 13F GENUINE PARTS CO COM COM 372460105 273,196 1,667 0.61 29,022 7.32 0.0485
2019-10-23 2019-09-30 13F GENUINE PARTS CO COM COM 372460105 271,529 10,126 3.87 27,042 -0.13 0.0494
2019-08-14 2019-06-30 13F GENUINE PARTS CO COM COM 372460105 261,403 -6,151 -2.30 27,076 -9.67 0.0508
2019-05-01 2019-03-31 13F GENUINE PARTS CO COM COM 372460105 267,554 -22,690 -7.82 29,974 7.55 0.0580
2019-01-31 2018-12-31 13F GENUINE PARTS CO COM COM 372460105 290,244 7,000 2.47 27,869 -1.01 0.0606
2018-11-07 2018-09-30 13F GENUINE PARTS CO COM COM 372460105 283,244 -3,769 -1.31 28,154 6.87 0.0544
2018-08-06 2018-06-30 13F GENUINE PARTS CO COM COM 372460105 287,013 -11,261 -3.78 26,345 -1.69 0.0531
2018-05-02 2018-03-31 13F GENUINE PARTS CO COM COM 372460105 298,274 -12,494 -4.02 26,797 -9.24 0.0560
2018-02-09 2017-12-31 13F GENUINE PARTS CO COM COM 372460105 310,768 95 0.03 29,526 -0.64 0.0600
2017-11-06 2017-09-30 13F GENUINE PARTS CO COM COM 372460105 310,673 6,602 2.17 29,716 5.35 0.0646
2017-08-02 2017-06-30 13F GENUINE PARTS CO COM COM 372460105 304,071 -16,224 -5.07 28,206 -4.70 0.0644
2017-05-02 2017-03-31 13F GENUINE PARTS CO COM COM 372460105 320,295 17,429 5.75 29,598 2.29 0.0691
2017-01-27 2016-12-31 13F GENUINE PARTS CO COM COM 372460105 302,866 19,817 7.00 28,936 1.77 0.0733
2016-11-08 2016-09-30 13F GENUINE PARTS CO COM COM 372460105 283,049 -2,677 -0.94 28,432 -1.72 0.0783
2016-08-11 2016-06-30 13F GENUINE PARTS CO COM COM 372460105 285,726 9,027 3.26 28,930 5.23 0.0857
2016-05-02 2016-03-31 13F GENUINE PARTS CO COM 372460105 276,699 1,454 0.53 27,493 16.29 0.0853
2016-02-03 2015-12-31 13F GENUINE PARTS CO COM 372460105 275,245 1,317 0.48 23,641 4.12 0.0761
2015-11-04 2015-09-30 13F GENUINE PARTS CO COM 372460105 273,928 7,317 2.74 22,706 -4.88 0.0772
2015-08-04 2015-06-30 13F GENUINE PARTS CO COM 372460105 266,611 16,095 6.42 23,870 2.24 0.0761
2015-05-12 2015-03-31 13F GENUINE PARTS CO COM 372460105 250,516 -3,222 -1.27 23,346 -13.66 0.0673
2015-02-06 2014-12-31 13F GENUINE PARTS CO COM 372460105 253,738 -1,861 -0.73 27,041 20.62 0.0786
2014-11-12 2014-09-30 13F GENUINE PARTS CO COM 372460105 255,599 -56,857 -18.20 22,419 -18.28 0.0673
2014-08-06 2014-06-30 13F GENUINE PARTS CO COM 372460105 312,456 -10,672 -3.30 27,434 -2.24 0.0805
2014-05-06 2014-03-31 13F GENUINE PARTS CO COM 372460105 323,128 2,173 0.68 28,064 5.11 0.0832
2014-02-03 2013-12-31 13F GENUINE PARTS CO COM 372460105 320,955 -17,070 -5.05 26,700 -2.35 0.0788
2013-11-05 2013-09-30 13F GENUINE PARTS CO COM 372460105 338,025 31,599 10.31 27,343 14.30 0.0847
2013-08-07 2013-06-30 13F GENUINE PARTS CO COM 372460105 306,426 306,426 23,923 0.0769
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.