Form 8.3

LONDON--(BUSINESS WIRE)-- 

FORM 8.3

PUBLIC OPENING POSITION DISCLOSURE/DEALING DISCLOSURE BY

A PERSON WITH INTERESTS IN RELEVANT SECURITIES REPRESENTING 1% OR MORE

Rule 8.3 of the Takeover Code (the “Code”)

1. KEY INFORMATION

(a) Full name of discloser:	Qube Research & Technologies Limited
(b) Owner or controller of interests and short positions disclosed, if different from 1(a): The naming of nominee or vehicle companies is insufficient. For a trust, the trustee(s), settlor and beneficiaries must be named.
(c) Name of offeror/offeree in relation to whose relevant securities this form relates: Use a separate form for each offeror/offeree	AMG Critical Materials N.V.
(d) If an exempt fund manager connected with an offeror/offeree, state this and specify identity of offeror/offeree:
(e) Date position held/dealing undertaken: For an opening position disclosure, state the latest practicable date prior to the disclosure	04-06-2026
(f) In addition to the company in 1(c) above, is the discloser making disclosures in respect of any other party to the offer? If it is a cash offer or possible cash offer, state “N/A”	N/A

2. POSITIONS OF THE PERSON MAKING THE DISCLOSURE

If there are positions or rights to subscribe to disclose in more than one class of relevant securities of the offeror or offeree named in 1(c), copy table 2(a) or (b) (as appropriate) for each additional class of relevant security.

(a) Interests and short positions in the relevant securities of the offeror or offeree to which the disclosure relates following the dealing (if any)

Class of relevant security:	EUR 0.02 ordinary
	Interests		Short positions
	Number	%	Number	%
(1) Relevant securities owned and/or controlled:	0	0.00	0	0.00
(2) Cash-settled derivatives:	776,054	2.18	0	0.00
(3) Stock-settled derivatives (including options) and agreements to purchase/sell:	300	0.00	2,600	0.00
TOTAL:	776,354	2.18	2,600	0.00

All interests and all short positions should be disclosed.

Details of any open stock-settled derivative positions (including traded options), or agreements to purchase or sell relevant securities, should be given on a Supplemental Form 8 (Open Positions).

(b) Rights to subscribe for new securities (including directors’ and other employee options)

Class of relevant security in relation to which subscription right exists:	0
Details, including nature of the rights concerned and relevant percentages:	0

3. DEALINGS (IF ANY) BY THE PERSON MAKING THE DISCLOSURE

Where there have been dealings in more than one class of relevant securities of the offeror or offeree named in 1(c), copy table 3(a), (b), (c) or (d) (as appropriate) for each additional class of relevant security dealt in.

The currency of all prices and other monetary amounts should be stated.

(a) Purchases and sales

Class of relevant security

Purchase/sale

Number of securities

Price per unit (GBp)

(b) Cash-settled derivative transactions

Class of relevant security	Product description e.g. call option	Nature of dealing e.g. opening/closing a long/short position, increasing/reducing a long/short position	Number of securities	Exercise price per unit (EUR)
EUR 0.02 ordinary	equity swap	decreasing a long position	25	37.62
EUR 0.02 ordinary	equity swap	decreasing a long position	447	37.64
EUR 0.02 ordinary	equity swap	decreasing a long position	82	37.66
EUR 0.02 ordinary	equity swap	decreasing a long position	792	37.70
EUR 0.02 ordinary	equity swap	decreasing a long position	100	37.74
EUR 0.02 ordinary	equity swap	decreasing a long position	4530	37.84
EUR 0.02 ordinary	equity swap	decreasing a long position	171	37.86
EUR 0.02 ordinary	equity swap	decreasing a long position	637	37.88
EUR 0.02 ordinary	equity swap	decreasing a long position	779	37.90
EUR 0.02 ordinary	equity swap	decreasing a long position	1057	37.92
EUR 0.02 ordinary	equity swap	decreasing a long position	15	37.93
EUR 0.02 ordinary	equity swap	decreasing a long position	1369	37.94
EUR 0.02 ordinary	equity swap	decreasing a long position	310	37.96
EUR 0.02 ordinary	equity swap	decreasing a long position	1233	37.98
EUR 0.02 ordinary	equity swap	decreasing a long position	103	38.00
EUR 0.02 ordinary	equity swap	decreasing a long position	600	38.02
EUR 0.02 ordinary	equity swap	decreasing a long position	17	38.06
EUR 0.02 ordinary	equity swap	decreasing a long position	181	38.10
EUR 0.02 ordinary	equity swap	decreasing a long position	50	38.12
EUR 0.02 ordinary	equity swap	decreasing a long position	53	38.14
EUR 0.02 ordinary	equity swap	decreasing a long position	460	38.16
EUR 0.02 ordinary	equity swap	decreasing a long position	61	38.18
EUR 0.02 ordinary	equity swap	decreasing a long position	3	38.20
EUR 0.02 ordinary	equity swap	decreasing a long position	35	38.28
EUR 0.02 ordinary	equity swap	decreasing a long position	1294	38.30
EUR 0.02 ordinary	equity swap	decreasing a long position	293	38.36
EUR 0.02 ordinary	equity swap	decreasing a long position	361	38.38
EUR 0.02 ordinary	equity swap	decreasing a long position	1196	38.40
EUR 0.02 ordinary	equity swap	decreasing a long position	34	38.42
EUR 0.02 ordinary	equity swap	decreasing a long position	579	38.46
EUR 0.02 ordinary	equity swap	decreasing a long position	17	38.47
EUR 0.02 ordinary	equity swap	decreasing a long position	1480	38.50
EUR 0.02 ordinary	equity swap	decreasing a long position	140	38.52
EUR 0.02 ordinary	equity swap	decreasing a long position	312	38.56
EUR 0.02 ordinary	equity swap	decreasing a long position	499	38.58
EUR 0.02 ordinary	equity swap	decreasing a long position	37	38.60
EUR 0.02 ordinary	equity swap	decreasing a long position	162	38.62
EUR 0.02 ordinary	equity swap	decreasing a long position	21	38.64
EUR 0.02 ordinary	equity swap	decreasing a long position	190	38.66
EUR 0.02 ordinary	equity swap	decreasing a long position	161	38.72
EUR 0.02 ordinary	equity swap	decreasing a long position	383	38.74
EUR 0.02 ordinary	equity swap	decreasing a long position	778	38.86
EUR 0.02 ordinary	equity swap	decreasing a long position	320	38.90
EUR 0.02 ordinary	equity swap	decreasing a long position	609	38.96
EUR 0.02 ordinary	equity swap	decreasing a long position	17	39.14
EUR 0.02 ordinary	equity swap	decreasing a short position	9	37.64
EUR 0.02 ordinary	equity swap	decreasing a short position	9	37.67
EUR 0.02 ordinary	equity swap	decreasing a short position	8	37.74
EUR 0.02 ordinary	equity swap	decreasing a short position	9	37.75
EUR 0.02 ordinary	equity swap	decreasing a short position	8	37.81
EUR 0.02 ordinary	equity swap	decreasing a short position	8	37.81
EUR 0.02 ordinary	equity swap	decreasing a short position	10	37.83
EUR 0.02 ordinary	equity swap	decreasing a short position	9	37.85
EUR 0.02 ordinary	equity swap	decreasing a short position	10	37.86
EUR 0.02 ordinary	equity swap	decreasing a short position	12	37.88
EUR 0.02 ordinary	equity swap	decreasing a short position	8	37.89
EUR 0.02 ordinary	equity swap	decreasing a short position	8	37.90
EUR 0.02 ordinary	equity swap	decreasing a short position	8	37.91
EUR 0.02 ordinary	equity swap	decreasing a short position	20	37.92
EUR 0.02 ordinary	equity swap	decreasing a short position	10	37.93
EUR 0.02 ordinary	equity swap	decreasing a short position	8	37.93
EUR 0.02 ordinary	equity swap	decreasing a short position	8	37.94
EUR 0.02 ordinary	equity swap	decreasing a short position	11	37.94
EUR 0.02 ordinary	equity swap	decreasing a short position	13	37.95
EUR 0.02 ordinary	equity swap	decreasing a short position	8	37.95
EUR 0.02 ordinary	equity swap	decreasing a short position	6	37.96
EUR 0.02 ordinary	equity swap	decreasing a short position	16	37.96
EUR 0.02 ordinary	equity swap	decreasing a short position	11	37.97
EUR 0.02 ordinary	equity swap	decreasing a short position	11	37.97
EUR 0.02 ordinary	equity swap	decreasing a short position	10	37.98
EUR 0.02 ordinary	equity swap	decreasing a short position	13	37.98
EUR 0.02 ordinary	equity swap	decreasing a short position	1	37.99
EUR 0.02 ordinary	equity swap	decreasing a short position	1	37.99
EUR 0.02 ordinary	equity swap	decreasing a short position	12	38.00
EUR 0.02 ordinary	equity swap	decreasing a short position	145	38.00
EUR 0.02 ordinary	equity swap	increasing a long position	240	37.62
EUR 0.02 ordinary	equity swap	increasing a long position	65	37.64
EUR 0.02 ordinary	equity swap	increasing a long position	255	37.68
EUR 0.02 ordinary	equity swap	increasing a long position	195	37.72
EUR 0.02 ordinary	equity swap	increasing a long position	807	37.74
EUR 0.02 ordinary	equity swap	increasing a long position	11	37.76
EUR 0.02 ordinary	equity swap	increasing a long position	264	37.80
EUR 0.02 ordinary	equity swap	increasing a long position	121	37.82
EUR 0.02 ordinary	equity swap	increasing a long position	235	37.86
EUR 0.02 ordinary	equity swap	increasing a long position	200	37.88
EUR 0.02 ordinary	equity swap	increasing a long position	264	37.89
EUR 0.02 ordinary	equity swap	increasing a long position	87	37.90
EUR 0.02 ordinary	equity swap	increasing a long position	646	37.92
EUR 0.02 ordinary	equity swap	increasing a long position	22	37.93
EUR 0.02 ordinary	equity swap	increasing a long position	478	37.94
EUR 0.02 ordinary	equity swap	increasing a long position	17	37.95
EUR 0.02 ordinary	equity swap	increasing a long position	206	37.96
EUR 0.02 ordinary	equity swap	increasing a long position	183	37.98
EUR 0.02 ordinary	equity swap	increasing a long position	5373	38.00
EUR 0.02 ordinary	equity swap	increasing a long position	522	38.02
EUR 0.02 ordinary	equity swap	increasing a long position	70	38.04
EUR 0.02 ordinary	equity swap	increasing a long position	82	38.06
EUR 0.02 ordinary	equity swap	increasing a long position	475	38.10
EUR 0.02 ordinary	equity swap	increasing a long position	94	38.12
EUR 0.02 ordinary	equity swap	increasing a long position	145	38.16
EUR 0.02 ordinary	equity swap	increasing a long position	162	38.18
EUR 0.02 ordinary	equity swap	increasing a long position	140	38.20
EUR 0.02 ordinary	equity swap	increasing a long position	17	38.23
EUR 0.02 ordinary	equity swap	increasing a long position	177	38.24
EUR 0.02 ordinary	equity swap	increasing a long position	58	38.26
EUR 0.02 ordinary	equity swap	increasing a long position	118	38.28
EUR 0.02 ordinary	equity swap	increasing a long position	142	38.30
EUR 0.02 ordinary	equity swap	increasing a long position	42	38.31
EUR 0.02 ordinary	equity swap	increasing a long position	85	38.39
EUR 0.02 ordinary	equity swap	increasing a long position	46	38.40
EUR 0.02 ordinary	equity swap	increasing a long position	21	38.50
EUR 0.02 ordinary	equity swap	increasing a long position	78	38.54
EUR 0.02 ordinary	equity swap	increasing a long position	17	38.73
EUR 0.02 ordinary	equity swap	increasing a long position	38	38.76
EUR 0.02 ordinary	equity swap	increasing a long position	21	38.92
EUR 0.02 ordinary	equity swap	increasing a long position	163	38.95
EUR 0.02 ordinary	equity swap	increasing a long position	4836	39.04
EUR 0.02 ordinary	equity swap	increasing a long position	25	39.30
EUR 0.02 ordinary	equity swap	increasing a short position	1	37.66
EUR 0.02 ordinary	equity swap	increasing a short position	1	37.68
EUR 0.02 ordinary	equity swap	increasing a short position	1	37.77
EUR 0.02 ordinary	equity swap	increasing a short position	1	37.84
EUR 0.02 ordinary	equity swap	increasing a short position	1	37.85
EUR 0.02 ordinary	equity swap	increasing a short position	1	37.85
EUR 0.02 ordinary	equity swap	increasing a short position	2	37.86
EUR 0.02 ordinary	equity swap	increasing a short position	1	37.89
EUR 0.02 ordinary	equity swap	increasing a short position	2	37.90
EUR 0.02 ordinary	equity swap	increasing a short position	2	37.90
EUR 0.02 ordinary	equity swap	increasing a short position	14	37.92
EUR 0.02 ordinary	equity swap	increasing a short position	2	37.92
EUR 0.02 ordinary	equity swap	increasing a short position	2	37.93
EUR 0.02 ordinary	equity swap	increasing a short position	1	37.93
EUR 0.02 ordinary	equity swap	increasing a short position	1	37.93
EUR 0.02 ordinary	equity swap	increasing a short position	3	37.93
EUR 0.02 ordinary	equity swap	increasing a short position	1	37.93
EUR 0.02 ordinary	equity swap	increasing a short position	1	37.93
EUR 0.02 ordinary	equity swap	increasing a short position	2	37.94
EUR 0.02 ordinary	equity swap	increasing a short position	1	37.95
EUR 0.02 ordinary	equity swap	increasing a short position	4	37.96
EUR 0.02 ordinary	equity swap	increasing a short position	1	37.96
EUR 0.02 ordinary	equity swap	increasing a short position	1	37.96
EUR 0.02 ordinary	equity swap	increasing a short position	2	37.97
EUR 0.02 ordinary	equity swap	increasing a short position	2	37.97
EUR 0.02 ordinary	equity swap	increasing a short position	1	37.97
EUR 0.02 ordinary	equity swap	increasing a short position	1	37.97
EUR 0.02 ordinary	equity swap	increasing a short position	1	37.97
EUR 0.02 ordinary	equity swap	increasing a short position	1	37.97
EUR 0.02 ordinary	equity swap	increasing a short position	2	37.98
EUR 0.02 ordinary	equity swap	increasing a short position	1	37.98
EUR 0.02 ordinary	equity swap	increasing a short position	1	37.99
EUR 0.02 ordinary	equity swap	increasing a short position	1	37.99
EUR 0.02 ordinary	equity swap	increasing a short position	1	38.00
EUR 0.02 ordinary	equity swap	increasing a short position	1088	38.00
EUR 0.02 ordinary	equity swap	increasing a short position	1	38.07
EUR 0.02 ordinary	equity swap	increasing a short position	1	38.10
EUR 0.02 ordinary	equity swap	increasing a short position	3	38.32
EUR 0.02 ordinary	equity swap	increasing a short position	1	38.37
EUR 0.02 ordinary	equity swap	increasing a short position	1	38.46
EUR 0.02 ordinary	equity swap	increasing a short position	1	38.51
EUR 0.02 ordinary	equity swap	increasing a short position	1	38.56
EUR 0.02 ordinary	equity swap	increasing a short position	1	38.62
EUR 0.02 ordinary	equity swap	increasing a short position	11	38.68
EUR 0.02 ordinary	equity swap	increasing a short position	1	38.73
EUR 0.02 ordinary	equity swap	increasing a short position	1	38.87
EUR 0.02 ordinary	equity swap	increasing a short position	6	38.92
EUR 0.02 ordinary	equity swap	increasing a short position	1	38.95
EUR 0.02 ordinary	equity swap	increasing a short position	1	39.00
EUR 0.02 ordinary	equity swap	increasing a short position	1	39.09

(c) Stock-settled derivative transactions (including options)

(i) Writing, selling, purchasing or varying

Class of relevant security

Product description e.g. call option

Writing, purchasing, selling, varying etc.

Number of securities to which option relates

Exercise price per unit (GBp)

Type e.g. American, European etc.

Expiry date

Option money paid/ received per unit (GBp)

(ii) Exercise

Class of relevant security

Product description e.g. call option

Exercising/ exercised against

Number of securities

Exercise price per unit

(d) Other dealings (including subscribing for new securities)

Class of relevant security

Nature of dealing e.g. subscription, conversion

Details

Price per unit (if applicable)

4. OTHER INFORMATION

(a) Indemnity and other dealing arrangements

Details of any indemnity or option arrangement, or any agreement or understanding, formal or informal, relating to relevant securities which may be an inducement to deal or refrain from dealing entered into by the person making the disclosure and any party to the offer or any person acting in concert with a party to the offer: Irrevocable commitments and letters of intent should not be included. If there are no such agreements, arrangements or understandings, state “none”

None

(b) Agreements, arrangements or understandings relating to options or derivatives

Details of any agreement, arrangement or understanding, formal or informal, between the person making the disclosure and any other person relating to: (i) the voting rights of any relevant securities under any option; or (ii) the voting rights or future acquisition or disposal of any relevant securities to which any derivative is referenced: If there are no such agreements, arrangements or understandings, state “none”

None

(c) Attachments

Is a Supplemental Form 8 (Open Positions) attached?

YES

Date of disclosure:	05-06-2026
Contact name:	Janice Falcao
Telephone number:	00442033140679

Public disclosures under Rule 8 of the Code must be made to a Regulatory Information Service.

The Panel’s Market Surveillance Unit is available for consultation in relation to the Code’s disclosure requirements on [phone]. The Code can be viewed on the Panel’s website at www.thetakeoverpanel.org.uk.

SUPPLEMENTAL FORM 8 (OPEN POSITIONS)

DETAILS OF OPEN STOCK-SETTLED DERIVATIVE (INCLUDING OPTION) POSITIONS, AGREEMENTS TO PURCHASE OR SELL ETC.

Note 5(i) on Rule 8 of the Takeover Code (the “Code”)

1. KEY INFORMATION

Full name of person making disclosure:	Qube Research & Technologies Limited
Name of offeror/offeree in relation to whose relevant securities the disclosure relates:	AMG Critical Materials N.V.

2. STOCK-SETTLED DERIVATIVES (INCLUDING OPTIONS)

Class of relevant security	Product description e.g. call option	Written or purchased	Number of securities to which option or derivative relates	Exercise price per unit	Type e.g. American, European etc.	Expiry date
Common Stock	Put Option	Written	2,500	EUR 36	American	19/06/2026
Common Stock	Call Option	Purchased	300	EUR 40	American	19/06/2026
Common Stock	Put Option	Written	100	EUR 35	American	19/06/2026

3. AGREEMENTS TO PURCHASE OR SELL ETC.

Full details should be given so that the nature of the interest or position can be fully understood:

It is not necessary to provide details on a Supplemental Form (Open Positions) with regard to cash-settled derivatives.

The currency of all prices and other monetary amounts should be stated.

The Panel’s Market Surveillance Unit is available for consultation in relation to the Code’s disclosure requirements on [phone].

The Code can be viewed on the Panel’s website at www.thetakeoverpanel.org.uk.