Quantinuum QNT Insider Ownership

Updated Oct 10, 2026

In the last 12 months, insiders at Quantinuum made open-market purchases of $24.66 million (411.03K shares) and sold no shares on the open market.

• Counted by insider, open-market buying of QNT stock in the past 12 months came from 11 insiders, with no insider selling.
• Among QNT's insiders, Hal Barron (Director) was the top open-market buyer in the past 12 months, with $15 million of stock purchased (250K shares) and the latest purchase on June 5, 2026.
• In transactions other than open-market trades, Quantinuum insiders received 1.78Mn shares in stock awards and gave up 336.39K shares to cover taxes or exercise prices over the past 12 months.
• Per Business Quant data, Quantinuum insiders hold 1.81Mn shares in total based on their latest Form 4 filings, up 7.43% from 1.68Mn shares at the end of Q2 2026.
• None of the 1.81Mn shares held by Quantinuum insiders is held through trusts, partnerships or family members; all are direct holdings.
• Business Quant counts 13 insiders with holdings in Quantinuum stock, among the officers, directors and 10% owners who have filed a Form 4 in the past two years.
• Quantinuum's three biggest insider holders are Rajeeb Hazra (President & CEO, 784.5K shares), Nitesh Sharan (Chief Financial Officer, 340.85K shares) and Hal Barron (Director, 255.83K shares), based on their latest Form 4 filings.
• The holding of Rajeeb Hazra makes up 43.41% of all shares held by Quantinuum insiders.
• Institutions accounted for 12.93% of QNT's outstanding shares in Q2 2026, insiders about 0.69% per their latest Form 4 filings, and other investors, including the public, about 86.38%.
• Over the trailing 12 months, 13 insiders reported transactions in QNT stock across 14 Form 4 filings.
• The insider data for QNT reflects Form 4 filings through July 22, 2026.