Updated Jul 16, 2026 · Last SEC filing 2026-07-06
GENUINE PARTS CO (GPC) has filed 30 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-06. 2 Form 8-K material event filings were reported by GPC in the last 90 days. 5 Form 144 notices of proposed sale were filed for GPC stock. InsiderAlpha tracks every GPC SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SIC classification | Wholesale-Motor Vehicle Supplies & New Parts (SIC 5013) |
|---|---|
| SEC CIK | 0000040987 |
| Form 4 filings (90d) | 30 |
|---|---|
| Form 8-K filings (90d) | 2 |
| Form 144 notices (90d) | 5 |
| Latest Form 4 filing | 2026-07-06 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Galla Christopher T | SVP, GC, and Corp. Secretary | S — Open-market sale | 2.3K | $115.00 | $268K | SEC | |
| Galla Christopher T | SVP, GC, and Corp. Secretary | F — Tax withholding / forfeiture | 268 | $103.52 | $28K | SEC | |
| Hyland Donna Westbrook | Director | M — Option exercise | 1.7K | $0.00 | — | SEC | |
| STENGEL WILLIAM P II | Chairman, President & CEO | F — Tax withholding / forfeiture | 2.2K | $103.52 | $229K | SEC | |
| Cox Richard JR | Director | M — Option exercise | 1.7K | $0.00 | — | SEC | |
| Hardin Paul Russell | Director | F — Tax withholding / forfeiture | 455 | $104.66 | $48K | SEC | |
| Howe James F. | President, Motion | F — Tax withholding / forfeiture | 173 | $103.52 | $18K | SEC | |
| Hyland Donna Westbrook | Director | F — Tax withholding / forfeiture | 455 | $104.66 | $48K | SEC | |
| Masse Alain | President, N.A. Automotive | F — Tax withholding / forfeiture | 273 | $103.52 | $28K | SEC | |
| Nappier Herbert | EVP Finance and CFO | F — Tax withholding / forfeiture | 887 | $103.52 | $92K | SEC | |
| PRYOR JULIETTE WILLIAMS | Director | F — Tax withholding / forfeiture | 455 | $104.66 | $48K | SEC | |
| Lafont Jean-Jacques | Director | M — Option exercise | 1.7K | $0.00 | — | SEC | |
| Cox Richard JR | Director | F — Tax withholding / forfeiture | 455 | $104.66 | $48K | SEC | |
| Hardin Paul Russell | Director | M — Option exercise | 1.7K | $0.00 | — | SEC | |
| PRYOR JULIETTE WILLIAMS | Director | M — Option exercise | 1.7K | $0.00 | — | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for GENUINE PARTS CO (GPC). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Galla Christopher T | 7 | $371K |
| Howe James F. | 6 | $79K |
| STENGEL WILLIAM P II | 6 | $890K |
| Nappier Herbert | 6 | $333K |
| Masse Alain | 6 | $143K |
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in GPC insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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