MarketPeel
Insider Trading Intelligence
SM

Steven Mizell

GPI
DIRECTOR · GROUP 1 AUTOMOTIVE INC · CIK 0001189403
FILING MIX · LIFETIME56%/44%
BUYS
45
SELLS
36
TOTAL VALUE
$35.84M
COMPANIES
4
ACTIVE SINCE
May 2020
HOLDINGS NOW
123,169
AVG SELL PX
$114.23
TRADE KIND
SHOWING 81 / 81
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
18 backtested trades · 8 horizons · 9 pending
Forward-return performance of every backtestable P/S trade by Steven Mizell, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d18+72.22%-0.61%-0.15%-0.46%-0.85%
14d18+50.00%-0.20%+0.35%-0.55%-1.72%
30d18+55.56%+0.42%+0.61%-0.19%+1.35%
60d18+50.00%+2.41%+2.76%-0.35%-0.14%
90d18+50.00%-1.48%+5.59%-7.07%-2.18%
180d18(2 pending)+43.75%+2.01%+7.49%-5.48%-9.67%
1y18(3 pending)+13.33%+9.88%+19.98%-10.10%-10.60%
2y18(4 pending)+71.43%-11.83%+48.60%-60.44%-64.52%
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
GPI · 583 shares · as of Jan 2, 2026
09851,9702,9553,94020222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 45 buys / 36 sellsCOVERAGE · 25 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
GRAL
GRAIL, INC.
PURCHASEGRANT
Stock grant
5,491$63.74$350.0K42,562Jun 18, 2026Jun 22, 2026View →
ALLE
ALLEGION PLC
SALE
292$130.27$38.0K5,711Jun 5, 2026Jun 9, 2026View →
ALLE
ALLEGION PLC
PURCHASEGRANT
Stock grant
1,0746,003Jun 4, 2026Jun 8, 2026View →
GRAL
GRAIL, INC.
PURCHASEGRANT
Stock grant
396$49.79$19.7K37,071Apr 15, 2026Apr 16, 2026View →
ALLE
ALLEGION PLC
SALE
1,000$161.51$161.5K4,915Feb 19, 2026Feb 20, 2026View →
ALLE
ALLEGION PLC
SALE
400$163.79$65.5K5,915Feb 18, 2026Feb 20, 2026View →
GRAL
GRAIL, INC.
PURCHASEGRANT
Stock grant
206$97.44$20.1K36,675Jan 15, 2026Jan 16, 2026View →
GPI
GROUP 1 AUTOMOTIVE INC
PURCHASEGRANT
Stock grant
575583Jan 2, 2026Jan 6, 2026View →
GRAL
GRAIL, INC.
PURCHASEGRANT
Stock grant
267$75.52$20.2K36,469Oct 15, 2025Oct 16, 2025View →
GPI
GROUP 1 AUTOMOTIVE INC
SALE
525$417.98$219.4K8Jul 29, 2025Jul 30, 2025View →
GRAL
GRAIL, INC.
PURCHASEGRANT
Stock grant
517$38.53$19.9K36,202Jul 15, 2025Jul 17, 2025View →
ALLE
ALLEGION PLC
SALE
319$139.34$44.4K6,275Jun 6, 2025Jun 10, 2025View →
ALLE
ALLEGION PLC
PURCHASEGRANT
Stock grant
1,0136,594Jun 5, 2025Jun 9, 2025View →
GRAL
GRAIL, INC.
PURCHASEGRANT
Stock grant
6,082$41.10$250.0K35,685May 29, 2025May 30, 2025View →
GRAL
GRAIL, INC.
PURCHASEGRANT
Stock grant
760$25.94$19.7K29,603Apr 15, 2025Apr 16, 2025View →
GRAL
GRAIL, INC.
PURCHASEGRANT
Stock grant
1,147$17.58$20.2K28,843Jan 15, 2025Jan 16, 2025View →
GPI
GROUP 1 AUTOMOTIVE INC
PURCHASEGRANT
Stock grant
533533Jan 2, 2025Jan 6, 2025View →
GRAL
GRAIL, INC.
PURCHASEGRANT
Stock grant
248$13.62$3.4K27,696Oct 30, 2024Nov 1, 2024View →
GRAL
GRAIL, INC.
PURCHASEGRANT
Stock grant
978$14.01$13.7K27,448Oct 15, 2024Oct 17, 2024View →
ALLE
ALLEGION PLC
PURCHASE
1,000$136.53$136.5K5,545Jul 26, 2024Jul 30, 2024View →
GRAL
GRAIL, INC.
PURCHASEGRANT
Stock grant
26,47026,470Jun 25, 2024Jun 27, 2024View →
ALLE
ALLEGION PLC
SALE
294$116.52$34.3K4,532Jun 8, 2024Jun 11, 2024View →
ALLE
ALLEGION PLC
PURCHASEGRANT
Stock grant
1,1054,826Jun 6, 2024Jun 10, 2024View →
MRK
MERCK & CO., INC.
SALE
EVP, Chief HR Officer
50,694$126.65$6.42M23,619.145Feb 2, 2024Feb 2, 2024View →
MRK
MERCK & CO., INC.
SALE
EVP, Chief HR Officer
8240Feb 2, 2024Feb 2, 2024View →
MRK
MERCK & CO., INC.
PURCHASE
EVP, Chief HR Officer
824$70.71$58.3K42,143.145Feb 2, 2024Feb 2, 2024View →
MRK
MERCK & CO., INC.
SALE
EVP, Chief HR Officer
32,17022,088Feb 2, 2024Feb 2, 2024View →
MRK
MERCK & CO., INC.
PURCHASE
EVP, Chief HR Officer
32,170$73.73$2.37M74,313.145Feb 2, 2024Feb 2, 2024View →
MRK
MERCK & CO., INC.
PURCHASEGRANT
Stock grant
18,384$119.43$2.20M41,319.145Jan 22, 2024Jan 24, 2024View →
GPI
GROUP 1 AUTOMOTIVE INC
PURCHASEGRANT
Stock grant
7393,940Jan 2, 2024Jan 4, 2024View →
ALLE
ALLEGION PLC
PURCHASEGRANT
Stock grant
2983,789Dec 8, 2023Dec 12, 2023View →
ALLE
ALLEGION PLC
SALE
86$109.51$9.4K3,703Dec 8, 2023Dec 12, 2023View →
MRK
MERCK & CO., INC.
SALE
EVP, Chief HR Officer
4,250$109.01$463.3K22,935.145Aug 14, 2023Aug 15, 2023View →
MRK
MERCK & CO., INC.
SALE
EVP, Chief HR Officer
4,500$105.49$474.7K27,185.145Aug 3, 2023Aug 4, 2023View →
ALLE
ALLEGION PLC
PURCHASEGRANT
Stock grant
1,0193,472Jun 8, 2023Jun 12, 2023View →
ALLE
ALLEGION PLC
SALE
293$107.41$31.5K2,453Jun 2, 2023Jun 6, 2023View →
MRK
MERCK & CO., INC.
SALE10b5-1
10b5-1 plan
12,000$119.01$1.43M33,085.145May 3, 2023May 5, 2023View →
MRK
MERCK & CO., INC.
SALE10b5-1
10b5-1 plan
13,400$119.01$1.59M31,685.145May 3, 2023May 5, 2023View →
MRK
MERCK & CO., INC.
PURCHASE
EVP, Chief HR Officer
12,000$75.36$904.3K45,085.145May 3, 2023May 5, 2023View →
MRK
MERCK & CO., INC.
SALE10b5-1
10b5-1 plan
15,000$119.01$1.79M45,085.145May 3, 2023May 5, 2023View →
MRK
MERCK & CO., INC.
SALE
EVP, Chief HR Officer
15,00044,151May 3, 2023May 5, 2023View →
MRK
MERCK & CO., INC.
SALE
EVP, Chief HR Officer
12,00032,151May 3, 2023May 5, 2023View →
MRK
MERCK & CO., INC.
SALE
EVP, Chief HR Officer
12,00054,258May 3, 2023May 5, 2023View →
MRK
MERCK & CO., INC.
PURCHASE
EVP, Chief HR Officer
13,000$77.62$1.01M46,085.145May 3, 2023May 5, 2023View →
MRK
MERCK & CO., INC.
SALE
EVP, Chief HR Officer
13,00039,366May 3, 2023May 5, 2023View →
MRK
MERCK & CO., INC.
SALE10b5-1
10b5-1 plan
13,000$119.01$1.55M60,085.145May 3, 2023May 5, 2023View →
MRK
MERCK & CO., INC.
PURCHASE
EVP, Chief HR Officer
15,000$75.36$1.13M61,085.145May 3, 2023May 5, 2023View →
MRK
MERCK & CO., INC.
PURCHASE
EVP, Chief HR Officer
12,000$73.73$884.8K73,085.145May 3, 2023May 5, 2023View →
MRK
MERCK & CO., INC.
PURCHASEGRANT
Stock grant
29,04629,046May 2, 2023May 4, 2023View →
MRK
MERCK & CO., INC.
SALE
EVP, Chief HR Officer
1,815$109.10$198.0K33,085.145Feb 13, 2023Feb 14, 2023View →
MRK
MERCK & CO., INC.
SALE
EVP, Chief HR Officer
5,000$107.00$535.0K34,900.145Feb 9, 2023Feb 10, 2023View →
MRK
MERCK & CO., INC.
SALE
EVP, Chief HR Officer
4,436$104.25$462.5K39,900.145Feb 6, 2023Feb 8, 2023View →
MRK
MERCK & CO., INC.
PURCHASEGRANT
Stock grant
12,192$109.88$1.34M44,336.145Jan 23, 2023Jan 25, 2023View →
GPI
GROUP 1 AUTOMOTIVE INC
PURCHASEGRANT
Stock grant
1,1023,201Jan 3, 2023Jan 5, 2023View →
MRK
MERCK & CO., INC.
SALE
EVP, Chief HR Officer
15,000824Nov 10, 2022Nov 10, 2022View →
MRK
MERCK & CO., INC.
SALE
EVP, Chief HR Officer
15,000$101.42$1.52M32,144.145Nov 10, 2022Nov 10, 2022View →
MRK
MERCK & CO., INC.
PURCHASE
EVP, Chief HR Officer
15,00047,144.145Nov 10, 2022Nov 10, 2022View →
MRK
MERCK & CO., INC.
SALE
EVP, Chief HR Officer
20,000$101.00$2.02M32,144.145Nov 8, 2022Nov 10, 2022View →
MRK
MERCK & CO., INC.
PURCHASE
EVP, Chief HR Officer
20,00052,144.145Nov 8, 2022Nov 10, 2022View →
MRK
MERCK & CO., INC.
SALE
EVP, Chief HR Officer
20,00015,824Nov 8, 2022Nov 10, 2022View →
MRK
MERCK & CO., INC.
SALE
EVP, Chief HR Officer
17,000$100.00$1.70M40,144.145Oct 28, 2022Nov 1, 2022View →
MRK
MERCK & CO., INC.
SALE
EVP, Chief HR Officer
8,000$98.84$790.7K32,144.145Oct 28, 2022Nov 1, 2022View →
MRK
MERCK & CO., INC.
SALE
EVP, Chief HR Officer
17,00035,824Oct 28, 2022Nov 1, 2022View →
MRK
MERCK & CO., INC.
PURCHASE
EVP, Chief HR Officer
17,00057,144.145Oct 28, 2022Nov 1, 2022View →
ALLE
ALLEGION PLC
SALE
241$112.36$27.1K2,719Jun 3, 2022Jun 7, 2022View →
ALLE
ALLEGION PLC
PURCHASEGRANT
Stock grant
1,0162,960Jun 2, 2022Jun 6, 2022View →
MRK
MERCK & CO., INC.
PURCHASEGRANT
Stock grant
40,77740,777May 3, 2022May 5, 2022View →
MRK
MERCK & CO., INC.
PURCHASEGRANT
Stock grant
14,571$73.51$1.07M40,144.145Feb 24, 2022Feb 28, 2022View →
GPI
GROUP 1 AUTOMOTIVE INC
PURCHASEGRANT
Stock grant
1,0302,099Jan 3, 2022Jan 4, 2022View →
MRK
MERCK & CO., INC.
SALE
EVP, Chief HR Officer
2,323$88.05$204.5K25,573.145Oct 30, 2021Nov 2, 2021View →
MRK
MERCK & CO., INC.
PURCHASE
EVP, Chief HR Officer
4,715$88.05$415.2K27,896.145Oct 30, 2021Nov 2, 2021View →
MRK
MERCK & CO., INC.
SALE
EVP, Chief HR Officer
4,7150Oct 30, 2021Nov 2, 2021View →
ALLE
ALLEGION PLC
PURCHASEGRANT
Stock grant
8351,934Jun 3, 2021Jun 7, 2021View →
MRK
MERCK & CO., INC.
PURCHASEGRANT
Stock grant
64,28664,286May 4, 2021May 6, 2021View →
GPI
GROUP 1 AUTOMOTIVE INC
PURCHASEGRANT
Stock grant
1,0691,069Mar 1, 2021Mar 2, 2021View →
MRK
MERCK & CO., INC.
PURCHASEGRANT
Stock grant
17,830$72.62$1.29M23,181.145Feb 26, 2021Mar 2, 2021View →
MRK
MERCK & CO., INC.
SALE
EVP, Chief HR Officer
4,5744,575Oct 30, 2020Nov 3, 2020View →
MRK
MERCK & CO., INC.
PURCHASE
EVP, Chief HR Officer
4,574$75.89$347.1K7,624.145Oct 30, 2020Nov 3, 2020View →
MRK
MERCK & CO., INC.
SALE
EVP, Chief HR Officer
2,273$75.89$172.5K5,351.145Oct 30, 2020Nov 3, 2020View →
ALLE
ALLEGION PLC
PURCHASEGRANT
Stock grant
1,0991,099Jun 4, 2020Jun 8, 2020View →
MRK
MERCK & CO., INC.
PURCHASEGRANT
Stock grant
57,39157,391May 1, 2020May 5, 2020View →
Other insiders · GPI
Loading peer insiders…
About this filer
CIK 0001189403
ROLE
Director
PRIMARY
GPI
COMPANIES
4
ACTIVE SINCE
May 2020
MARKETPEEL · /INSIDER/0001189403DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
FREE · DAILY · 6 AM ET

One short email. Insider buys, congressional trades, and plain-English analysis.

Feedback