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GPCGenuine Parts Company · Insider ownership research

Genuine Parts Company insiders sold $668K in the past 12 months. How much of their stake is that?

About 0.4% overall. As a group they ended with more shares than they started with. The biggest seller whose stake can be measured, Christopher Galla, sold shares equal to 11% of starting holdings, but more vested, so the stake grew.

Updated Oct 9, 2026 from SEC filings · covers Oct 10, 2025 to Oct 9, 2026
How this comparesMore of their stake sold than at 71 of the 416 other companies we can measure (#346 of 417)See ranking
0
buyers among officers and directors, past 12 months
100%
of sales were under disclosed trading plans, past 12 months
2 of 21
officers and directors sold shares, past 12 months
Recent activity · past 30 days, Sep 10, 2026 to Oct 9, 2026

No officer or director trades were reported for the past 30 days. The most recent before that:

Aug 19, 2026Jennifer Hulett had 302 shares ($41K) withheld by the company for taxes (not a market sale). That is 1.4% of the total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Jennifer Hulett
EVP and Chief People Officer
302$134.541.4%21KAug 19, 2026Aug 20, 2026

"% of total stake" is the shares in this event against all the vested shares the person held that day, across every share class and holding entity, after that day's vesting. "n/a" means the person's holdings don't reconcile, or the row is a purchase. "Holdings record incomplete" means more shares were sold than the filings show the person held that day, so a percentage would be wrong.

Is this normal? In line with the past 5 years. 2 insiders sold; the average is 1 a year. Year by year
Latest filing: Filed Sep 10 for a stock award on Sep 8. Court Carruthers received an award of 42K shares. Filing
45 SEC ownership filings in the period · See the evidence

What stands out

Tax withholding outweighed market sales: the company withheld $2.9M of officers' and directors' shares for taxes, against $668K sold on the open market. The largest was Paul Donahue ($1.0M withheld).Largest withholding, Feb 23, 2026
Christopher Galla sold 2.3K shares (11% of starting holdings), but 4.8K more vested, so the stake grew (from 21K to 22K).Largest sale, Jun 26, 2026

Percentages cover 13 of 21 officers and directors. 8 are left out

i
Left out: James Howe and Jean-Jacques Lafont (holdings couldn't be fully reconciled); Juliette Pryor, Darren Rebelez, Charles Stevens III, Laurie Schupmann, Matt Carey and Court Carruthers (held no vested shares at the start).
Disclosed company stock is not an insider's whole wealth.

Who sold, and how much of their stake

Officers and directors, past 12 months. Each bar is 100% of that person's own stake; not comparable between people. The stake is the vested shares held at the start of the period (Oct 9, 2025); the gold part is what they sold.

SoldRest of starting stake
James Howe
President, Motion
Sold $400K (plan status beside the amount). Share of stake not shown: holdings couldn't be fully reconciled. Why
$400KDisclosed plan
Christopher Galla
SVP, GC, and Corp. Secretary
11% · $268KDisclosed plan
Amounts, filings and trading plans for each seller

Selling by month

Officers and directors, Oct 2025 to Oct 2026. Each sale is counted once: under a disclosed plan, else to cover taxes, else no plan disclosed.

Disclosed planOne dollar scale for every month; the tallest bar is labeled
OctNovDec 2025: $212K under a disclosed planDecJanFebMarAprMay 2026: $188K under a disclosed planMayJun 2026: $268K under a disclosed plan$268KJunJulAugSepOct

Common questions

Is the Genuine Parts Company CEO selling stock?

No. William Stengel II reported no open-market sales in the past 12 months.

Why are Genuine Parts Company insiders selling?

Filings rarely give a reason, and we don't guess at one. What they show is how the sales were made: 100% of sales by value ran under 10b5-1 trading plans disclosed in the filings. A trading plan schedules sales in advance.

Are any Genuine Parts Company insiders buying?

No. Officers and directors reported no purchases in the past 12 months.

How much of their stake did Genuine Parts Company insiders sell?

About 0.4% overall. As a group they ended with more shares than they started with. The biggest seller whose stake can be measured, Christopher Galla, sold shares equal to 11% of starting holdings, but more vested, so the stake grew. That covers the 12 months to Oct 9, 2026 and counts vested shares reported on SEC Forms 3, 4 and 5, which is not an insider's whole wealth.

The evidence

Who sold2 officers and directors: amount, % of holdings, trading plan
Who soldAmount% of holdingsTrading plan
James Howe
President, Motion
$400K
3.5K shares
i
No percentage: holdings couldn't be fully reconciled.
Disclosed plan
Christopher Galla
SVP, GC, and Corp. Secretary
$268K
2.3K shares
11%Disclosed plan
The full ownership picture19 of 21 insiders fully reconciled · 17 officers and directors

Vested shares across all share classes, held directly and through trusts, LLCs and family members, as reported on SEC Forms 3, 4 and 5. Unvested awards and options are never counted as owned shares.

InsiderHeld Oct 9, 2025SoldHeld Oct 9, 2026Still held
Paul Donahue
i
Includes unvested RSUs, amount not disclosed.
Director
230K0231Kno sales
Vesting, gifts, unvested awards and holding lines for Paul Donahue
+9.7Kshares vested or exercised
0gifted (net of own trusts)
−8.7Kwithheld by the company for taxes
1.6K → 1.6Kunvested awards, start → end
  • Includes unvested RSUs, amount not disclosed.
Held throughShare classOct 9, 2025Oct 9, 2026
Direct
includes unvested RSUs, amount not disclosed
Common Stock147,017148,007
Family TrustCommon Stock82,95182,951
401(k)Common Stock517517
William Stengel II
i
Minor difference of 766 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer). Includes unvested RSUs, amount not disclosed.
Chairman, President & CEO, Director
89K0111Kno sales
Vesting, gifts, unvested awards and holding lines for William Stengel II
0shares vested or exercised
0gifted (net of own trusts)
−8.5Kwithheld by the company for taxes
none reportedunvested awards, start → end
  • Includes unvested RSUs, amount not disclosed.
Held throughShare classOct 9, 2025Oct 9, 2026
Direct
includes unvested RSUs, amount not disclosed
Common Stock88,969110,977

Reconciliation: minor difference of 766 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Herbert Nappier
i
Minor difference of 353 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer). Includes unvested RSUs, amount not disclosed.
EVP Finance and CFO
48K056Kno sales
Vesting, gifts, unvested awards and holding lines for Herbert Nappier
0shares vested or exercised
0gifted (net of own trusts)
−3.9Kwithheld by the company for taxes
none reportedunvested awards, start → end
  • Includes unvested RSUs, amount not disclosed.
Held throughShare classOct 9, 2025Oct 9, 2026
Direct
includes unvested RSUs, amount not disclosed
Common Stock48,47456,368

Reconciliation: minor difference of 353 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Randall Breaux
i
Includes unvested RSUs, amount not disclosed.
Group President, GPC N.A.
37K037Kno sales
Vesting, gifts, unvested awards and holding lines for Randall Breaux
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
  • Includes unvested RSUs, amount not disclosed.
Held throughShare classOct 9, 2025Oct 9, 2026
Direct
includes unvested RSUs, amount not disclosed
Common Stock37,33037,330
Robert Loudermilk Jr.
Director
37K037Kno sales
Vesting, gifts, unvested awards and holding lines for Robert Loudermilk Jr.
0shares vested or exercised
0gifted (net of own trusts)
105K → 105Kunvested awards, start → end
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock36,73036,730
James Howe
!
Holdings couldn't be fully reconciled. Balance changed without a matching transaction, and the footnote does not state the amount: -6,957 shares on May 3, 2026 (Direct). See the filing Sales and other transactions for James Howe are complete.
President, Motion
n/a−3.5Kn/an/a
Vesting, gifts, unvested awards and holding lines for James Howe
0shares vested or exercised
0gifted (net of own trusts)
−753withheld by the company for taxes
none reportedunvested awards, start → end
  • Includes unvested RSUs, amount not disclosed.

Holdings couldn't be fully reconciled. Balance changed without a matching transaction, and the footnote does not state the amount: -6,957 shares on May 3, 2026 (Direct). The balances below are as reported, not verified totals.

Held throughShare classOct 9, 2025Oct 9, 2026
Direct
includes unvested RSUs, amount not disclosed
Common Stock29,04425,589
John Holder
i
Additional holdings last reported more than 3 years ago are shown separately and excluded from totals.
Director
27K027Kno sales
Vesting, gifts, unvested awards and holding lines for John Holder
0shares vested or exercised
0gifted (net of own trusts)
82K → 82Kunvested awards, start → end
  • Additional holdings last reported more than 3 years ago are shown separately and excluded from totals.
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock27,02527,025

Additional holdings last reported Apr 2, 2018, not confirmed since: 4,660 shares. Not included in any total or percentage on this page.

Naveen Krishna
i
Includes unvested RSUs, amount not disclosed.
EVP, Cido
26K026Kno sales
Vesting, gifts, unvested awards and holding lines for Naveen Krishna
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
  • Includes unvested RSUs, amount not disclosed.
Held throughShare classOct 9, 2025Oct 9, 2026
Direct
includes unvested RSUs, amount not disclosed
Common Stock26,11226,112
Christopher Galla
i
Minor difference of 133 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer). Includes unvested RSUs, amount not disclosed.
SVP, GC, and Corp. Secretary
21K−2.3K22K+6.9%
Vesting, gifts, unvested awards and holding lines for Christopher Galla
0shares vested or exercised
0gifted (net of own trusts)
−983withheld by the company for taxes
none reportedunvested awards, start → end
  • Includes unvested RSUs, amount not disclosed.
Held throughShare classOct 9, 2025Oct 9, 2026
Direct
includes unvested RSUs, amount not disclosed
Common Stock20,53521,969
401(k)Common Stock139139

Reconciliation: minor difference of 133 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Alain Masse
i
Minor difference of 143 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer). Includes unvested RSUs, amount not disclosed.
President, N.A. Automotive
20K025Kno sales
Vesting, gifts, unvested awards and holding lines for Alain Masse
0shares vested or exercised
0gifted (net of own trusts)
−1.8Kwithheld by the company for taxes
none reportedunvested awards, start → end
  • Includes unvested RSUs, amount not disclosed.
Held throughShare classOct 9, 2025Oct 9, 2026
Direct
includes unvested RSUs, amount not disclosed
Common Stock19,71424,850

Reconciliation: minor difference of 143 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Jennifer Hulett
i
Minor difference of 113 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer). Includes unvested RSUs, amount not disclosed.
EVP and Chief People Officer
17K021Kno sales
Vesting, gifts, unvested awards and holding lines for Jennifer Hulett
0shares vested or exercised
0gifted (net of own trusts)
−720withheld by the company for taxes
none reportedunvested awards, start → end
  • Includes unvested RSUs, amount not disclosed.
Held throughShare classOct 9, 2025Oct 9, 2026
Direct
includes unvested RSUs, amount not disclosed
Common Stock17,34621,311

Reconciliation: minor difference of 113 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Donna Hyland
Director
8.6K09.8Kno sales
Vesting, gifts, unvested awards and holding lines for Donna Hyland
+1.7Kshares vested or exercised
0gifted (net of own trusts)
−455withheld by the company for taxes
72K → 93Kunvested awards, start → end
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock8,5939,811
Paul Hardin
Director
5.2K06.5Kno sales
Vesting, gifts, unvested awards and holding lines for Paul Hardin
+1.7Kshares vested or exercised
0gifted (net of own trusts)
−455withheld by the company for taxes
58K → 61Kunvested awards, start → end
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock5,2396,457
Jean-Jacques Lafont
!
Holdings couldn't be fully reconciled. Filings report each grant's shares as the balance instead of a running total. See the filing Sales and other transactions for Jean-Jacques Lafont are complete.
Director
n/a0n/an/a
Vesting, gifts, unvested awards and holding lines for Jean-Jacques Lafont
+1.7Kshares vested or exercised
0gifted (net of own trusts)
2.8K → 6.3Kunvested awards, start → end

Holdings couldn't be fully reconciled. Filings report each grant's shares as the balance instead of a running total. The balances below are as reported, not verified totals.

Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock2,8141,673
Richard Cox Jr.
Director
2.1K03.3Kno sales
Vesting, gifts, unvested awards and holding lines for Richard Cox Jr.
+1.7Kshares vested or exercised
0gifted (net of own trusts)
−455withheld by the company for taxes
35K → 60Kunvested awards, start → end
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock2,0723,290
Juliette Pryor
Director
001.2Kno sales
Vesting, gifts, unvested awards and holding lines for Juliette Pryor
+1.7Kshares vested or exercised
0gifted (net of own trusts)
−455withheld by the company for taxes
26K → 47Kunvested awards, start → end
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock01,218
Court Carruthers
i
Includes unvested RSUs, amount not disclosed.
Director
0042Kno sales
Vesting, gifts, unvested awards and holding lines for Court Carruthers
0shares vested or exercised
0gifted (net of own trusts)
893 → 2.7Kunvested awards, start → end
  • Includes unvested RSUs, amount not disclosed.
Held throughShare classOct 9, 2025Oct 9, 2026
Direct
includes unvested RSUs, amount not disclosed
Common Stock041,773

19 of 21 insiders fully reconciled: starting holdings plus reported transactions match ending holdings (14 exactly, 5 with a minor or footnoted difference). For 2 we show sales but not holdings; the ! icon on their rows explains why. Percentages cover 13 of 21 officers and directors. Left out: James Howe and Jean-Jacques Lafont (holdings couldn't be fully reconciled); Juliette Pryor, Darren Rebelez, Charles Stevens III, Laurie Schupmann, Matt Carey and Court Carruthers (held no vested shares at the start). "Still held" compares ending with starting vested shares; a plus sign means the holding grew.

What explains the selling$668K of sales by plan status, purpose, seller and month

Officer and director open-market sales: $668K across 5,788 shares. Plan status and stated purpose are separate questions, and a sale can have both.

By plan status

Taxes

27,208 shares ($2.9M) were withheld by the company for taxes, which isn't a market sale.

SellerShares soldProceedsUnder a disclosed planShare of totalSales dates
James Howe
President, Motion
3.5K$400K100%60%Dec 17, 2025 to May 5, 2026
Christopher Galla
SVP, GC, and Corp. Secretary
2.3K$268K100%40%Jun 26, 2026 to Jun 26, 2026

Sales by month

MonthSale proceedsDisclosed planTo cover taxesNo plan disclosed
Oct 2025$0$0$0$0
Nov 2025$0$0$0$0
Dec 2025$212K$212K$0$0
Jan 2026$0$0$0$0
Feb 2026$0$0$0$0
Mar 2026$0$0$0$0
Apr 2026$0$0$0$0
May 2026$188K$188K$0$0
Jun 2026$268K$268K$0$0
Jul 2026$0$0$0$0
Aug 2026$0$0$0$0
Sep 2026$0$0$0$0
Oct 2026$0$0$0$0
Is this normal? Selling year by year5 earlier years to compare with

In line with the past 5 years. 2 insiders sold; the average is 1 a year.

12 months endingShares soldInsiders who soldProceeds
Oct 9, 2026
Latest 12 months
5.8K2$668K
Oct 9, 2025
1 year earlier
11K2$1.4M
Oct 9, 2024
2 years earlier
6.3K1$957K
Oct 10, 2023
3 years earlier
00$0
Oct 10, 2022
4 years earlier
00$0
Oct 10, 2021
5 years earlier
2.5K1$331K

Open-market sales (Form 4 code S) by people who were officers or directors, in split-adjusted shares. Earlier years include people who have since left. A sale that an outside holder also reports (a family trust, a fund) is counted with outside holders in every year. Shares, not dollars, are compared, so a change in the stock price doesn't look like a change in selling. Years the filings don't fully cover are shown but left out of the average.

Known gaps and uncertainty2 insiders whose holdings couldn't be fully reconciled

James Howe: holdings couldn't be fully reconciled (difference of -5,366 shares). Balance changed without a matching transaction, and the footnote does not state the amount: -6,957 shares on May 3, 2026 (Direct). Filing, May 3, 2026

Footnote: "The Reporting Person's ending balance has been increased by 37 shares to account for shares from dividend accrual."

Jean-Jacques Lafont: holdings couldn't be fully reconciled (difference of -2,814 shares). Filings report each grant's shares as the balance instead of a running total. Filing, May 3, 2026

William Stengel II: minor difference of 766 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Herbert Nappier: minor difference of 353 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Christopher Galla: minor difference of 133 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Alain Masse: minor difference of 143 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Jennifer Hulett: minor difference of 113 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

External context: we only cite outside events when a documented connection exists. None is shown for this period.

Sources and methodology2,086 filings from SEC EDGAR, and how we read them

All 2,086 Forms 3, 4 and 5 filed for Genuine Parts Company (SEC CIK 40987) from Jun 3, 2003 to Oct 5, 2026, retrieved from SEC EDGAR on Oct 9, 2026. Prices are the ones reported in each filing, often weighted averages.

Holdings. Each holding line (a share class plus an owner, such as a trust or LLC) carries its last reported balance forward. Entities first reported during the period start at zero, so transfers between an insider's own trusts don't count as selling. Lines not reported for three years or more are listed separately and left out of totals.

Sales. A sale counts as under a 10b5-1 plan if its footnote cites one or the filing's Rule 10b5-1 box is checked, and as tax-related if its footnote cites tax obligations or sell-to-cover. Shares withheld by the company for taxes are listed separately. Sales with neither attribute are labeled "no plan disclosed".

Full methodology

Former or inactive filers (34)No filing in 18 months; last reported balances, not in any total
NameLast filedLast reported balance
John JohnsApr 3, 202542,550 shares, last reported balance as of May 1, 2024
Gary FayardApr 3, 202510,507 shares, last reported balance as of May 1, 2024
Wendy NeedhamMar 5, 20257,333 shares, last reported balance as of Mar 5, 2025
Elizabeth CampMay 7, 20247,021 shares, last reported balance as of May 1, 2024
James NeillDec 22, 202324,421 shares, last reported balance as of Dec 22, 2023
Jenner Wood IIIMay 4, 20239,883 shares, last reported balance as of May 1, 2023
Kevin HerronMay 4, 202326,831 shares, last reported balance as of May 3, 2023
Carol YanceyMay 3, 202261,621 shares, last reported balance as of May 1, 2022
Napoleon Rutledge Jr.Dec 3, 20215,619 shares, last reported balance as of Dec 1, 2021
Scott SonnemakerMay 4, 20205,000 shares, last reported balance as of Dec 31, 2019
Thomas GallagherMar 24, 2020627,213 shares, last reported balance as of Mar 23, 2020
Jerry NixMay 10, 2018155,914 shares, last reported balance as of May 8, 2018
Timothy BreenMay 2, 20184,307 shares, last reported balance as of Jan 12, 2018
Lee MaherMay 2, 201853,066 shares, last reported balance as of Jan 12, 2018
Mary BullockMay 18, 201713,613 shares, last reported balance as of May 17, 2017
Gary RollinsMay 18, 201715,515 shares, last reported balance as of May 17, 2017
Gary RollinsMay 18, 201734,030 shares, last reported balance as of Dec 31, 2016
Jean DouvilleFeb 8, 20162,250 shares, last reported balance as of Dec 31, 2015
Michael JohnsMay 13, 201515,794 shares, last reported balance as of May 11, 2015
George GuynnMay 13, 201511,097 shares, last reported balance as of May 11, 2015
William StevensFeb 24, 2015115,344 shares, last reported balance as of Feb 23, 2015
Robert ClaytonFeb 6, 201528,890 shares, last reported balance as of Dec 31, 2014
John LanierApr 3, 201348,257 shares, last reported balance as of Apr 1, 2013
Larry PrinceMay 9, 2011412,140 shares, last reported balance as of May 5, 2011
Robert SusorFeb 4, 201164,342 shares, last reported balance as of Dec 31, 2010
Richard Courts IIApr 23, 20091,575 shares, last reported balance as of Dec 31, 2008
Richard Courts IIApr 23, 2009190,000 shares, last reported balance as of Dec 31, 2008
Larry SamuelsonApr 20, 200929,082 shares, last reported balance as of Apr 17, 2009
Lawrence SteinerFeb 9, 200912,870 shares, last reported balance as of Dec 31, 2008
Keith CowanMar 29, 20072,000 shares, last reported balance as of Feb 27, 2007
James WilliamsApr 20, 200629,999 shares, last reported balance as of Dec 31, 2005
Edward Van StedumFeb 14, 20055,421 shares, last reported balance as of Dec 31, 2004
George KalafutMar 31, 200451,619 shares, last reported balance as of Mar 31, 2004
Robert ForrestalFeb 10, 20043,500 shares, last reported balance as of Dec 31, 2003

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