Garth Ritchie

Companies

• Arqit Quantum Inc.Board member 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

• AQArqit Quantum Inc. ARQQ105,450 shares²$1.5M at $13.88Jul 17, 2026

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

Recent filings

• Jul 17, 2026Exercised options 841 shares of Arqit Quantum Inc.²
• Jul 2, 2026Sold 439 shares at $25.20 of Arqit Quantum Inc.³
• Jul 1, 2026Exercised options 249 shares of Arqit Quantum Inc.³
• Jul 1, 2026Exercised options 250 shares of Arqit Quantum Inc.³
• Jul 1, 2026Exercised options 250 shares of Arqit Quantum Inc.³
• Jul 1, 2026Exercised options 50 shares of Arqit Quantum Inc.³
• Jun 5, 2026Exercised options 73,562 shares at $2.50 of Arqit Quantum Inc.⁴
• May 7, 2026Exercised options 1,887 shares of Arqit Quantum Inc.⁵
• Apr 2, 2026Sold 512 shares at $13.25 of Arqit Quantum Inc.⁶
• Apr 1, 2026Exercised options 501 shares of Arqit Quantum Inc.⁶
• Apr 1, 2026Exercised options 250 shares of Arqit Quantum Inc.⁶
• Apr 1, 2026Exercised options 50 shares of Arqit Quantum Inc.⁶
• Apr 1, 2026Exercised options 250 shares of Arqit Quantum Inc.⁶