Mary A. Winston

Sits on 3 boards. Last updated September 28, 2026

Time on boards

Boards served
3
Current seats
3
Board service
11 years
Director since
2023

11 years of board service in total across 3 boards, counting each seat separately. Longest: Acuity Inc., 3 years.

Acuity Inc. Director
3 years ยท Since 2023
3 years ยท Since 2023
3 years ยท Since 2023

Insider trades

All notable trades →

From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.

Date Company Transaction Shares Price Value
Jun 11, 2026 Chipotle Mexican Grill Inc. Grant or award +6,880 $31.25 $215,000
May 20, 2026 Northrop Grumman Corporation Grant or award +349 $552.17 $192,707
Jun 11, 2025 Chipotle Mexican Grill Inc. Grant or award +4,152 $51.79 $215,032
May 21, 2025 Northrop Grumman Corporation Grant or award +385 $473.90 $182,452
Jul 31, 2024 Northrop Grumman Corporation Grant or award +377 $484.32 $182,589
Jun 6, 2024 Chipotle Mexican Grill Inc. Grant or award +67 โ€” โ€”
May 25, 2023 Chipotle Mexican Grill Inc. Grant or award +105 โ€” โ€”
May 17, 2023 Northrop Grumman Corporation Grant or award +392 $447.34 $175,357
Mar 15, 2023 Northrop Grumman Corporation Grant or award +69 $448.90 $30,974

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