Diana Sue Ferguson

Sits on 3 boards. Last updated September 27, 2026

Time on boards

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

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

Gartner Inc. Director
3 years ยท Since 2023
Mattel Inc. Director
3 years ยท 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
Jul 1, 2026 Gartner Inc. Other +201 โ€” โ€”
May 15, 2026 Mattel Inc. Option exercise +8,594 โ€” โ€”
Apr 1, 2026 Gartner Inc. Other +174 โ€” โ€”
Jan 2, 2026 Gartner Inc. Other +108 โ€” โ€”
Oct 1, 2025 Gartner Inc. Other +97 โ€” โ€”
Aug 7, 2025 Sally Beauty Holdings Inc. (Name to be changed from Sally Holdings Inc.) Open-market purchase +2,500 $12.02 $30,050
Jul 1, 2025 Gartner Inc. Other +60 โ€” โ€”
Apr 1, 2025 Gartner Inc. Other +60 โ€” โ€”
Jan 2, 2025 Gartner Inc. Other +54 โ€” โ€”
Oct 1, 2024 Gartner Inc. Other +52 โ€” โ€”
Jul 1, 2024 Gartner Inc. Other +59 โ€” โ€”
Jun 1, 2024 Gartner Inc. Option exercise +705 โ€” โ€”
May 24, 2024 Mattel Inc. Option exercise +7,539 โ€” โ€”
Apr 1, 2024 Gartner Inc. Other +55 โ€” โ€”
Jan 2, 2024 Gartner Inc. Other +60 โ€” โ€”

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