Richard Roy Grisenthwaite

Chief Architect, Arm Holdings.

Companies

Arm HoldingsChief Architect Mar 18, 2026 to now¹

Holdings

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

Shares held

Arm Holdings ARM0 shares²May 18, 2026

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

Recent filings

May 18, 2026Sold 24,339 shares at $209.15 of Arm Holdings²
May 15, 2026Shares withheld for tax 21,301 shares at $209.16 of Arm Holdings²
May 15, 2026Exercised options 4,352 shares of Arm Holdings²
May 15, 2026Granted 13,315 shares of Arm Holdings²
May 15, 2026Exercised options 1,631 shares of Arm Holdings²
May 15, 2026Granted 4,158 shares of Arm Holdings²
May 15, 2026Exercised options 14,595 shares of Arm Holdings²
May 15, 2026Exercised options 2,046 shares of Arm Holdings²
May 15, 2026Granted 5,217 shares of Arm Holdings²

Sources

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

1
SEC EDGARArm Holdings, Chief Architect
2
SEC EDGARArm Holdings shares after the filing of May 18, 2026