Michael Jay Sacks

Sits on 3 boards. Last updated September 28, 2026

Time on boards

Boards served
3
Current seats
3
Board service
6 years
Director since
2024

6 years of board service in total across 3 boards, counting each seat separately. Longest: Shenandoah Telecommunications Co, 2 years.

2 years ยท Since 2024
1 year ยท Since 2025
GCM Grosvenor Inc. Director ยท Chief Executive Officer
1 year ยท Since 2025

Chief executive roles

GCM Grosvenor Inc. ยท Chief Executive Officer
Dates unknown

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
Feb 18, 2026 Shenandoah Telecommunications Co Option exercise +10,924 โ€” โ€”
Nov 14, 2025 GCM Grosvenor Inc. In-the-money exercise +900,000 $11.50 $10,350,000
Nov 14, 2025 GCM Grosvenor Inc. Other โˆ’893,012 $11.59 $10,350,009
May 12, 2025 GCM Grosvenor Inc. Derivative conversion +2,569,415 โ€” โ€”
May 12, 2025 GCM Grosvenor Inc. Other โˆ’2,569,415 โ€” โ€”
May 12, 2025 GCM Grosvenor Inc. Other โˆ’2,569,415 โ€” โ€”

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