Michael Jay Sacks

Chief Executive Officer, GCM Grosvenor Inc.

Companies

FTAI Infrastructure Inc.Board member Feb 28, 2025 to now¹
SHENANDOAH TELECOMMUNICATIONS CO/VA/Board member May 10, 2024 to now²
GCM Grosvenor Inc.Board member Nov 17, 2020 to now³
GCM Grosvenor Inc.Chief executive officer Nov 17, 2020 to now³

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

SHENANDOAH TELECOMMUNICATIONS CO/VA/ SHEN4,116,050 shares⁴$41.7M at $10.14Jun 10, 2026
GCM Grosvenor Inc. GCMG6,988 shares⁵$86.6K at $12.39Nov 14, 2025

As of each latest filing. The line shows shares held over time.

Recent filings

Feb 18, 2026Exercised options 10,924 shares of SHENANDOAH TELECOMMUNICATIONS CO/VA/⁶
Nov 14, 2025Other 893,012 shares at $11.59 of GCM Grosvenor Inc.⁵
Nov 14, 2025Exercised 900,000 shares at $11.50 of GCM Grosvenor Inc.⁵

Sources

The numbers on this page point here. Each one links to the record it came from.

1
SEC EDGARFTAI Infrastructure Inc., Board member
2
SEC EDGARSHENANDOAH TELECOMMUNICATIONS CO/VA/, Board member
3
SEC EDGARGCM Grosvenor Inc., Board member
4
SEC EDGARSHENANDOAH TELECOMMUNICATIONS CO/VA/ shares after the filing of Jun 10, 2026
5
SEC EDGARGCM Grosvenor Inc. shares after the filing of Nov 14, 2025
6
SEC EDGARForm 4 filed Feb 19, 2026