Michael Marberry

Sits on 2 boards. Last updated September 28, 2026

Time on boards

Boards served
2
Current seats
2
Board service
7 years
Director since
2023

7 years of board service in total across 2 boards, counting each seat separately. Longest: AdvanSix Inc., 3 years.

AdvanSix Inc. Director
3 years · Since 2023
3 years · Since 2023

Shareholder support

Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.

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
May 13, 2026 American Water Works Company Inc. Grant or award +1,374 — —
May 14, 2025 American Water Works Company Inc. Grant or award +1,308 — —
May 15, 2024 American Water Works Company Inc. Grant or award +1,234 — —
Nov 6, 2023 American Water Works Company Inc. Open-market purchase +3,786 $130.20 $492,937
May 18, 2023 American Water Works Company Inc. Open-market purchase +1,400 $142.35 $199,290
May 10, 2023 American Water Works Company Inc. Grant or award +1,035 — —
May 2, 2023 American Water Works Company Inc. Open-market purchase +675 $145.89 $98,476
May 1, 2023 American Water Works Company Inc. Open-market purchase +150 $147.10 $22,065
Mar 31, 2023 AdvanSix Inc. Grant or award +620 $38.27 $23,727

Questions about Michael Marberry

What boards is Michael Marberry on?

Michael Marberry sits on the boards of AdvanSix Inc. and American Water Works Company Inc.

How long has Michael Marberry served on boards?

Our records show at least 7 years of board service across 2 boards, the earliest from 2023.

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