GPI insider buying and SEC filings, explained
Group 1 Automotive Inc. · CIK 1031203
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Insider activity in the last 12 months
Bought
$211.5M
Insiders who bought
1
Sold (not marked 10b5-1)
$660K
Planned sales (10b5-1)
$0
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Oct 30, 2026 | Sale | Steven Mizell (Director) sold 550 shares at about $260.52 ($143K). Holdings down 94% to 33 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Oct 30, 2026, 3:37 PM ET |
| Oct 29, 2026 | Sale | Gillian A. Hobson (SVP, Chief Legal Officer & Sec) sold 2,000 shares at about $258.24 ($516K). Holdings down 21% to 7,543 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Oct 29, 2026, 2:41 PM ET |
| Oct 22–26, 2026 | Purchase (code P) | Conifer Management, L.L.C. (10% owner) bought 100,000 shares indirectly between Oct 22 and Oct 26 at about $242.32 ($24.2M), reported as a purchase (code P). Indirect holdings up 5% to 2,012,290 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Oct 26, 2026, 9:00 PM ET |
| Sep 28–30, 2026 | Purchase (code P) | Conifer Management, L.L.C. (10% owner) bought 273,712 shares indirectly between Sep 28 and Sep 30 at about $242.15 ($66.3M), reported as a purchase (code P). Indirect holdings up 17% to 1,912,290 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 30, 2026 |
| Sep 24–25, 2026 | Purchase (code P) | Conifer Management, L.L.C. (10% owner) bought 126,288 shares indirectly between Sep 24 and Sep 25 at about $249.62 ($31.5M), reported as a purchase (code P). Indirect holdings up 8% to 1,638,578 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 28, 2026 |
| Sep 17–18, 2026 | Purchase (code P) | Conifer Management, L.L.C. (10% owner) bought 65,650 shares indirectly between Sep 17 and Sep 18 at about $256.78 ($16.9M), reported as a purchase (code P). Indirect holdings up 5% to 1,512,290 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 21, 2026 |
| Sep 9–10, 2026 | Purchase (code P) | Conifer Management, L.L.C. (10% owner) bought 84,000 shares indirectly between Sep 9 and Sep 10 at about $281.77 ($23.7M), reported as a purchase (code P). Indirect holdings up 6% to 1,446,640 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 11, 2026 |
| Sep 3–4, 2026 | Purchase (code P) | Conifer Management, L.L.C. (10% owner) bought 140,280 shares indirectly between Sep 3 and Sep 4 at about $289.77 ($40.6M), reported as a purchase (code P). Indirect holdings up 11% to 1,362,640 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 8, 2026 |
| Sep 1–2, 2026 | Purchase (code P) | Conifer Management, L.L.C. (10% owner) bought 30,100 shares indirectly between Sep 1 and Sep 2 at about $275.28 ($8.3M), reported as a purchase (code P). Indirect holdings up 3% to 1,222,360 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 3, 2026 |
32 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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