Arqit Quantum Inc. - Ordinary Shares, par value $0.0025 per share (ARQQ) Institutional Ownership

13F Institutional Holders and Ownership History from Q3 2024 to Q4 2025

Type / Class
Equity / Ordinary Shares, par value $0.0025 per share
Symbol
ARQQ on Nasdaq
Shares outstanding
22,182,156
Price per share
$21.88
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares
1,849,445
Total reported value
$71,630,349
% of total 13F portfolios
0%
Share change
+646,108
Value change
+$25,105,529
Number of holders
56
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of Arqit Quantum Inc. - Ordinary Shares, par value $0.0025 per share (ARQQ) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
Heritage Assets SCSp. 42% -3.3% $359,295,464 -$12,462,891 9,272,141 -3.4% Heritage Assets SCSp 10 Nov 2025
D2BW Ltd 5.8% $11,990,930 726,723 Williams David John 11 Dec 2024
Evolution Technology Fund II, SCSP. 3.1% $6,554,774 397,259 The Evolution Technology Fund II SCSP 30 Sep 2024

As of 30 Sep 2025, 56 institutional investors reported holding 1,849,445 shares of Arqit Quantum Inc. - Ordinary Shares, par value $0.0025 per share (ARQQ). This represents 8.3% of the company’s total 22,182,156 outstanding shares.

Institutional Holders of Arqit Quantum Inc. - Ordinary Shares, par value $0.0025 per share (ARQQ) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 53,563 $1,171,957 +$331,415 $21.88 8
2025 Q3 1,849,445 $71,630,349 +$25,105,529 $38.75 56
2025 Q2 1,202,647 $44,476,147 +$28,918,523 $37.03 41
2025 Q1 496,588 $6,880,844 -$346,034 $13.86 31
2024 Q4 310,891 $12,068,293 +$9,502,613 $38.84 29
2024 Q3 45,079 $256,951 +$256,951 $5.70 12