ARQQ ARQIT QUANTUM INC

Stock (common), issuer CIK 1859690

44 managers (44 13F filers) reported a position in ARQQ shares at 2025-06-30, 1,205,197 shares in all. 19 filers opened a position and 7 filers sold out during the quarter.

Managers: 44
13F filers: 44
New: 19
Added: 8
Reduced: 8
Sold out: 7
Shares held by filers: 1,205,197

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

The latest Form 4 transactions, non-derivative.
Owner	Date	Shares	Price	Filing
Wilder Ben Simonofficer (Chief Operating Officer)	2026-10-06	-218 S	$24.1915	Form 4
Nilan Nicholas Williamofficer (General Manager-US)	2026-10-06	-493 S	$24.1915	Form 4
Ritchie Garthdirector	2026-10-06	-118 S	$24.1915	Form 4
Willcocks Patrickofficer (General Counsel)	2026-10-06	-555 S	$24.1915	Form 4
Feenan Paulofficer (Chief Revenue Officer)	2026-10-06	-504 S	$24.1915	Form 4
Leaver Andrewofficer (Chief Executive Officer)	2026-10-06	-2,398 S	$24.1915	Form 4
Leaver Andrewofficer (Chief Executive Officer)	2026-10-05	-2,818 J	$24.4743	Form 4
Leaver Andrewofficer (Chief Executive Officer)	2026-10-05	+5,208 M	$0	Form 4
Leaver Andrewofficer (Chief Executive Officer)	2026-10-05	-5,209 J	$0	Form 4
Leaver Andrewofficer (Chief Executive Officer)	2026-10-05	-2,535 S	$23.7847	Form 4
Calabria Carlodirector	2026-10-05	+83 M	$0	Form 4
Calabria Carlodirector	2026-10-05	+83 M	$0	Form 4
Calabria Carlodirector	2026-10-05	+66 M	$0	Form 4
Calabria Carlodirector	2026-10-05	+16 M	$0	Form 4
Feenan Paulofficer (Chief Revenue Officer)	2026-10-05	-533 S	$23.7847	Form 4

13F holders, Q2 2025

Filers in the available 13F reports with a share position at 2025-06-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

Holder	Shares	Value	% of portfolio	Change	Source
Penserra Capital Management LLCin group Penserra Capital Management L…	712,306	$26.4M	0.37%	new	13F-HR Timeline Group
UBS Group AGin group UBS Group AG	107,750	$3.99M	<0.01%	-130,644	13F-HR Timeline Group
Legal & General Group Plcin group Legal & General Group Plc	72,566	$2.69M	<0.01%	new	13F-HR Timeline Group
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC	45,397	$1.68M	<0.01%	+24,822	13F-HR Timeline Group
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…	39,263	$1.45M	<0.01%	new	13F-HR Timeline Group
SBI Securities Co., Ltd.	36,590	$1.35M	0.04%	+5,445	13F-HR Timeline
IMC-Chicago, LLC	23,007	$852K	0.02%	new	13F-HR Timeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA	21,620	$801K	<0.01%	+1,070	13F-HR/A Timeline Group
MORGAN STANLEYin group MORGAN STANLEY	20,393	$755K	<0.01%	-4,263	13F-HR Timeline Group
Advisory Services Network, LLC	21,603	$718K	0.01%	new	13F-HR Timeline
WOLVERINE TRADING, LLC	12,520	$487K	0.01%	new	13F-HR Timeline
Veracity Capital LLC	11,729	$434K	0.15%	-622	13F-HR Timeline
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC	11,703	$433K	<0.01%	-648	13F-HR Timeline Group
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO	10,437	$386K	<0.01%	new	13F-HR Timeline Group
LPL Financial LLC	10,194	$377K	<0.01%	new	13F-HR Timeline
Zurcher Kantonalbank (Zurich Cantonalba…	7,936	$294K	<0.01%	+5,060	13F-HR Timeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC	7,246	$268K	<0.01%	new	13F-HR Timeline Group
Biltmore Family Office, LLC	6,824	$253K	0.04%	new	13F-HR Timeline
Global Retirement Partners, LLC	6,000	$222K	0.01%		13F-HR Timeline
VAN ECK ASSOCIATES CORPin group VAN ECK ASSOCIATES CORP	4,751	$176K	<0.01%	new	13F-HR Timeline Group
Quantbot Technologies LP	3,298	$122K	<0.01%	new	13F-HR Timeline
BlackRock, Inc.in group BlackRock, Inc.	3,266	$121K	<0.01%	-1,889	13F-HR Timeline Group
Leonteq Securities AG	2,550	$94.4K	0.01%	new	13F-HR Timeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.	1,258	$46.6K	<0.01%	-1,013	13F-HR/A Timeline Group
ALBION FINANCIAL GROUP /UT	1,000	$37K	<0.01%	0	13F-HR Timeline
Allworth Financial LP	1,000	$37K	<0.01%	+350	13F-HR Timeline
SIGNATUREFD, LLC	750	$27.8K	<0.01%	0	13F-HR Timeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP	509	$19.8K	<0.01%	+479	13F-HR Timeline Group
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN	475	$17.6K	<0.01%	+400	13F-HR Timeline Group
SIMPLEX TRADING, LLC	301	$11K	<0.01%	-1,181	13F-HR Timeline
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…	225	$8.33K	<0.01%	0	13F-HR Timeline Group
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/	200	$7.41K	<0.01%	new	13F-HR Timeline Group
US BANCORP \DE\in group US BANCORP \DE\	100	$3.7K	<0.01%	0	13F-HR Timeline Group
West Financial Advisors, LLC	100	$3.7K	<0.01%	new	13F-HR Timeline
Federation des caisses Desjardins du Qu…	97	$3.59K	<0.01%	new	13F-HR Timeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…	91	$3.37K	<0.01%	+28	13F-HR Timeline Group
Parallel Advisors, LLC	66	$2.46K	<0.01%	new	13F-HR Timeline
Heritage Wealth Advisors	54	$2K	<0.01%	new	13F-HR Timeline
MCF Advisors LLC	10	$371	<0.01%	0	13F-HR Timeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS	10	$370	<0.01%	-1,051	13F-HR Timeline Group
NATIXISin group Natixis Investment Managers	1	$37	<0.01%	0	13F-HR Timeline Group
HEALTHCARE OF ONTARIO PENSION PLAN TRUS…	1	$37	<0.01%	0	13F-HR Timeline
OGOREK ANTHONY JOSEPH /NY/ /ADV	0	$0	0%	new	13F-HR TimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.
CONCOURSE FINANCIAL GROUP SECURITIES, I…	0	$0		0	13F-HR TimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.

Events

Wilder Ben Simon sold 218 ARQQ shares on 2026-10-06, Form 4 filed 2026-10-08. 0001859690-26-000191
Accepted 2026-10-08 22:19:13 UTC, ingested 2026-10-08 22:19:53 UTC
Nilan Nicholas William sold 493 ARQQ shares on 2026-10-06, Form 4 filed 2026-10-08. 0001859690-26-000190
Accepted 2026-10-08 22:18:34 UTC, ingested 2026-10-08 22:19:52 UTC
Ritchie Garth sold 118 ARQQ shares on 2026-10-06, Form 4 filed 2026-10-08. 0001859690-26-000189
Accepted 2026-10-08 22:17:46 UTC, ingested 2026-10-08 22:18:53 UTC
Willcocks Patrick sold 555 ARQQ shares on 2026-10-06, Form 4 filed 2026-10-08. 0001859690-26-000188
Accepted 2026-10-08 22:16:44 UTC, ingested 2026-10-08 22:17:52 UTC
Feenan Paul sold 504 ARQQ shares on 2026-10-06, Form 4 filed 2026-10-08. 0001859690-26-000187
Accepted 2026-10-08 22:15:58 UTC, ingested 2026-10-08 22:16:52 UTC
Leaver Andrew sold 2,398 ARQQ shares on 2026-10-06, Form 4 filed 2026-10-08. 0001859690-26-000186
Accepted 2026-10-08 22:15:14 UTC, ingested 2026-10-08 22:15:53 UTC
Leaver Andrew disposed of 5,354 ARQQ shares on 2026-10-05, Form 4 filed 2026-10-07. 0001859690-26-000185
Accepted 2026-10-07 23:52:58 UTC, ingested 2026-10-07 23:53:40 UTC
Calabria Carlo acquired 248 ARQQ shares on 2026-10-05, Form 4 filed 2026-10-07. 0001859690-26-000184
Accepted 2026-10-07 23:51:15 UTC, ingested 2026-10-07 23:52:49 UTC
Feenan Paul acquired 501 ARQQ shares on 2026-10-05, Form 4 filed 2026-10-07. 0001859690-26-000183
Accepted 2026-10-07 23:49:30 UTC, ingested 2026-10-07 23:50:40 UTC
Lefebvre d'Ovidio Manfredi acquired 1,359 ARQQ shares on 2026-10-05, Form 4 filed 2026-10-07. 0001859690-26-000182
Accepted 2026-10-07 23:47:57 UTC, ingested 2026-10-07 23:48:40 UTC
Nilan Nicholas William acquired 437 ARQQ shares on 2026-10-05, Form 4 filed 2026-10-07. 0001859690-26-000181
Accepted 2026-10-07 23:45:56 UTC, ingested 2026-10-07 23:46:40 UTC
Ritchie Garth acquired 121 ARQQ shares on 2026-10-05, Form 4 filed 2026-10-07. 0001859690-26-000180
Accepted 2026-10-07 23:44:01 UTC, ingested 2026-10-07 23:44:40 UTC
Wilder Ben Simon acquired 210 ARQQ shares on 2026-10-05, Form 4 filed 2026-10-07. 0001859690-26-000179
Accepted 2026-10-07 23:42:04 UTC, ingested 2026-10-07 23:42:40 UTC
Willcocks Patrick acquired 560 ARQQ shares on 2026-10-05, Form 4 filed 2026-10-07. 0001859690-26-000178
Accepted 2026-10-07 23:40:31 UTC, ingested 2026-10-07 23:41:40 UTC
Willcocks Patrick acquired 591 ARQQ shares on 2026-10-02, Form 4 filed 2026-10-06. 0001859690-26-000177
Accepted 2026-10-06 23:46:30 UTC, ingested 2026-10-06 23:47:48 UTC
Wilder Ben Simon acquired 224 ARQQ shares on 2026-10-02, Form 4 filed 2026-10-06. 0001859690-26-000176
Accepted 2026-10-06 23:45:26 UTC, ingested 2026-10-06 23:45:49 UTC
Ritchie Garth acquired 129 ARQQ shares on 2026-10-02, Form 4 filed 2026-10-06. 0001859690-26-000175
Accepted 2026-10-06 23:44:34 UTC, ingested 2026-10-06 23:45:49 UTC
Nilan Nicholas William acquired 466 ARQQ shares on 2026-10-02, Form 4 filed 2026-10-06. 0001859690-26-000174
Accepted 2026-10-06 23:43:30 UTC, ingested 2026-10-06 23:44:48 UTC
Leaver Andrew acquired 2,390 ARQQ shares on 2026-10-02, Form 4 filed 2026-10-06. 0001859690-26-000173
Accepted 2026-10-06 23:42:16 UTC, ingested 2026-10-06 23:42:49 UTC
Feenan Paul acquired 528 ARQQ shares on 2026-10-02, Form 4 filed 2026-10-06. 0001859690-26-000172
Accepted 2026-10-06 23:41:16 UTC, ingested 2026-10-06 23:41:48 UTC