Arqit Quantum Inc. (ARQQ) Institutional Ownership

Ownership Summary

Recent 13F filings as of September 2025 show that 57 institutional investors hold a position in Arqit Quantum Inc. (NASDAQ:ARQQ).

• The percentage of Arqit Quantum owned by institutions changed from 11.1% in June 2025 to 14.8% in September 2025, marking a slight up trend.
• In percentage terms, this reflects as a holdings change of 53.15% quarter on quarter, and an increase of 307.14% year over year.
• The latest 13F cycle for Arqit Quantum reveals that of 57 total investors, 36 funds grew their exposure, whereas 11 reduced theirs and 10 made no changes.
• This class of investors increased its holdings in Arqit Quantum to 1.99Mn shares for the 13F-cycle ending September 2025, up by 691.96K shares quarter on quarter, and up 1.95Mn shares year over year.
• As of September 30, 2025, Penserra Capital Management LLC held Arqit Quantum's largest shareholding position with over 1.02Mn shares, representing 7.58% of total outstanding shares.
• Among the most significant buyers of Arqit Quantum during September 2025 were Penserra Capital Management LLC (308.94K), SUSQUEHANNA INTERNATIONAL GROUP, LLP (153.56K), JANE STREET GROUP, LLC (79.80K), RAYMOND JAMES FINANCIAL INC (39.32K), BANQUE PICTET & CIE SA (36.00K).
• Leading sellers of Arqit Quantum stock in September 2025 included UBS Group AG (31.16K), Virtu Financial LLC (25.90K), ROYAL BANK OF CANADA (16.96K), MORGAN STANLEY (12.33K), WOLVERINE TRADING, LLC (6.21K).
• The top 10 institutional holders of Arqit Quantum for the quarter ending September 2025 included Penserra Capital Management LLC (1.02Mn), SUSQUEHANNA INTERNATIONAL GROUP, LLP (192.82K), JANE STREET GROUP, LLC (157.10K), RAYMOND JAMES FINANCIAL INC (84.71K), UBS Group AG (76.59K), Legal & General Group Plc (75.77K), SBI Securities Co., Ltd. (40.25K), BANQUE PICTET & CIE SA (36.00K), JPMORGAN CHASE & CO (34.03K), VAN ECK ASSOCIATES CORP (26.61K).