Form4insider filings, from the source

Company · CIK 0001031203 · SIC 5500 — Retail-Auto Dealers & Gasoline Stations · NYSE

GROUP 1 AUTOMOTIVE INC · GPI

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $89.5M · 4sales $0 · 0net $89.5M
$10k$10k$1M$1M$100M$100MbuyssalesMar 26Apr 25May 26Jun 26Jul 27Aug 27Sep 26

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 17, 2026 PForm 4 →Sep 21, 4:32 pm EDTConifer Management, L.L.C.10% Owner65,650$256.78$16,857,7151,512,290+4.54%
Sep 15, 2026 GForm 4 →Sep 16, 10:22 am EDTPeter C DeLongchampsSr. VP, Financial Svcs/Mfr Rel854——28,551—
Sep 9, 2026 PForm 4 →Sep 11, 4:08 pm EDTConifer Management, L.L.C.10% Owner84,000$281.78$23,669,1141,446,640+6.16%
Sep 3, 2026 PForm 4 →Sep 8, 5:28 pm EDTConifer Management, L.L.C.10% Owner140,280$289.77$40,649,3701,362,640+11.5%
Sep 1, 2026 PForm 4 →Sep 3, 4:29 pm EDTConifer Management, L.L.C.10% Owner30,100$275.28$8,285,8501,222,360+2.52%
Aug 11, 2026 FForm 4 →Aug 12, 6:07 pm EDTMelkeya McDuffieSenior VP, Human Resources24$267.30$6,4151,441—

Reported at this company — derivatives (options, RSUs, warrants)

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Aug 10, 2026 AForm 4 →Aug 12, 3:11 pm EDTDavid C KimbellDirector336——336—