WILLCOCKS PATRICK (General Counsel) sold 17.5% of their position (2.01K shares) of ARQIT QUANTUM INC. on the open market

Open‑market sale worth $50.6K — a significant reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale

WILLCOCKS PATRICK

Filed: 7/6/2026ACC: 0001859690-26-000137

InsiderWILLCOCKS PATRICKCIK 1967211

→

IssuerARQIT QUANTUM INC.CIK 1859690

Officer· General Counsel

Since Mar 2026

-2.01K

Net shares

Net seller

$50.6K

Total sold

Open market trades

0B · 1S

Total transactions

3.56K acquired · 5.56K disposed

Non-Derivative Transactions5

Ordinary Shares

Direct

M · Option Exercise

+2.08K

Price / share

—

Trade value

—

% of position

26.3%

7/1/2026

7.92K→10K

Ordinary Shares

Direct

M · Option Exercise

+110.00

Price / share

—

Trade value

—

% of position

1.1%

7/1/2026

10K→10.11K

Ordinary Shares

Direct

M · Option Exercise

+448.00

Price / share

—

Trade value

—

% of position

4.4%

7/1/2026

10.11K→10.56K

Ordinary Shares

Direct

M · Option Exercise

+915.00

Price / share

—

Trade value

—

% of position

8.7%

7/1/2026

10.56K→11.47K

Ordinary Shares

Direct

S · Sale

−2.01K

Price / share

$25.20

Trade value

$50.63K

% of position

17.5%

7/2/2026

11.47K→9.46K

Total

Net shares

+1.55K

Net value

-$50.63K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Ordinary Shares Direct	7/1/2026	M · Option Exercise	+2.08K	—	—	26.3%	7.92K	10K
Ordinary Shares Direct	7/1/2026	M · Option Exercise	+110.00	—	—	1.1%	10K	10.11K
Ordinary Shares Direct	7/1/2026	M · Option Exercise	+448.00	—	—	4.4%	10.11K	10.56K
Ordinary Shares Direct	7/1/2026	M · Option Exercise	+915.00	—	—	8.7%	10.56K	11.47K
Ordinary Shares Direct	7/2/2026	S · Sale	−2.01K	$25.20	$50.63K	17.5%	11.47K	9.46K
Total			+1.55K		-$50.63K

Derivative Transactions4

Restricted Share Units

Direct

M · Option Exercise

Converts to

Ordinary Shares

2.08K shares

−2.08K

Strike price

Held after

10.41K

Exercisable

—

7/1/2026

Restricted Share Units

Direct

M · Option Exercise

Converts to

Ordinary Shares

110.00 shares

−110.00

Strike price

Held after

0.00

Exercisable

—

7/1/2026

Restricted Share Units

Direct

M · Option Exercise

Converts to

Ordinary Shares

448.00 shares

−448.00

Strike price

Held after

1.78K

Exercisable

—

7/1/2026

Restricted Share Units

Direct

M · Option Exercise

Converts to

Ordinary Shares

915.00 shares

−915.00

Strike price

Held after

8.24K

Exercisable

—

7/1/2026

Security	Converts To	Date	Type	Shares	Exercisable	Held After
Restricted Share Units Direct	Ordinary Shares2.08K shares	7/1/2026	M · Option Exercise	−2.08K	—	10.41K
Restricted Share Units Direct	Ordinary Shares110.00 shares	7/1/2026	M · Option Exercise	−110.00	—	0.00
Restricted Share Units Direct	Ordinary Shares448.00 shares	7/1/2026	M · Option Exercise	−448.00	—	1.78K
Restricted Share Units Direct	Ordinary Shares915.00 shares	7/1/2026	M · Option Exercise	−915.00	—	8.24K