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	01-06-2026
(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:	775,146	2.17	0	0.00
(3) Stock-settled derivatives (including options) and agreements to purchase/sell:	300	0.00	2,600	0.00
TOTAL:	775,446	2.17	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	172	40.68
EUR 0.02 ordinary	equity swap	decreasing a long position	50	40.72
EUR 0.02 ordinary	equity swap	decreasing a long position	163	40.82
EUR 0.02 ordinary	equity swap	decreasing a long position	20	40.86
EUR 0.02 ordinary	equity swap	decreasing a long position	2319	41.08
EUR 0.02 ordinary	equity swap	decreasing a long position	46	41.12
EUR 0.02 ordinary	equity swap	decreasing a long position	20	41.14
EUR 0.02 ordinary	equity swap	decreasing a long position	14	41.23
EUR 0.02 ordinary	equity swap	decreasing a long position	40	41.26
EUR 0.02 ordinary	equity swap	decreasing a long position	92	41.36
EUR 0.02 ordinary	equity swap	decreasing a long position	345	41.48
EUR 0.02 ordinary	equity swap	decreasing a long position	77	41.50
EUR 0.02 ordinary	equity swap	decreasing a long position	20	41.60
EUR 0.02 ordinary	equity swap	decreasing a long position	189	41.78
EUR 0.02 ordinary	equity swap	decreasing a long position	136	41.83
EUR 0.02 ordinary	equity swap	decreasing a long position	246	41.88
EUR 0.02 ordinary	equity swap	decreasing a long position	122	41.90
EUR 0.02 ordinary	equity swap	decreasing a long position	560	41.92
EUR 0.02 ordinary	equity swap	decreasing a long position	119	41.94
EUR 0.02 ordinary	equity swap	decreasing a long position	1065	41.96
EUR 0.02 ordinary	equity swap	decreasing a long position	476	42.00
EUR 0.02 ordinary	equity swap	decreasing a long position	113	42.16
EUR 0.02 ordinary	equity swap	decreasing a short position	1	40.98
EUR 0.02 ordinary	equity swap	decreasing a short position	1	41.02
EUR 0.02 ordinary	equity swap	decreasing a short position	1	41.07
EUR 0.02 ordinary	equity swap	decreasing a short position	12	41.08
EUR 0.02 ordinary	equity swap	decreasing a short position	2	41.09
EUR 0.02 ordinary	equity swap	decreasing a short position	3	41.10
EUR 0.02 ordinary	equity swap	decreasing a short position	1	41.12
EUR 0.02 ordinary	equity swap	decreasing a short position	1	41.13
EUR 0.02 ordinary	equity swap	decreasing a short position	3	41.14
EUR 0.02 ordinary	equity swap	decreasing a short position	5	41.14
EUR 0.02 ordinary	equity swap	decreasing a short position	2	41.15
EUR 0.02 ordinary	equity swap	decreasing a short position	1	41.15
EUR 0.02 ordinary	equity swap	decreasing a short position	1	41.16
EUR 0.02 ordinary	equity swap	decreasing a short position	1	41.16
EUR 0.02 ordinary	equity swap	decreasing a short position	1	41.17
EUR 0.02 ordinary	equity swap	decreasing a short position	1	41.18
EUR 0.02 ordinary	equity swap	decreasing a short position	10	41.22
EUR 0.02 ordinary	equity swap	decreasing a short position	2	41.24
EUR 0.02 ordinary	equity swap	decreasing a short position	3	41.28
EUR 0.02 ordinary	equity swap	decreasing a short position	1	41.32
EUR 0.02 ordinary	equity swap	decreasing a short position	2	41.34
EUR 0.02 ordinary	equity swap	decreasing a short position	356	41.36
EUR 0.02 ordinary	equity swap	decreasing a short position	3	41.37
EUR 0.02 ordinary	equity swap	decreasing a short position	1	41.47
EUR 0.02 ordinary	equity swap	decreasing a short position	9	41.48
EUR 0.02 ordinary	equity swap	decreasing a short position	9	41.74
EUR 0.02 ordinary	equity swap	decreasing a short position	8	41.88
EUR 0.02 ordinary	equity swap	decreasing a short position	11	41.89
EUR 0.02 ordinary	equity swap	decreasing a short position	12	41.92
EUR 0.02 ordinary	equity swap	decreasing a short position	2	41.92
EUR 0.02 ordinary	equity swap	increasing a long position	290	40.71
EUR 0.02 ordinary	equity swap	increasing a long position	287	40.72
EUR 0.02 ordinary	equity swap	increasing a long position	296	40.80
EUR 0.02 ordinary	equity swap	increasing a long position	218	40.94
EUR 0.02 ordinary	equity swap	increasing a long position	173	41.02
EUR 0.02 ordinary	equity swap	increasing a long position	242	41.04
EUR 0.02 ordinary	equity swap	increasing a long position	29	41.06
EUR 0.02 ordinary	equity swap	increasing a long position	96	41.08
EUR 0.02 ordinary	equity swap	increasing a long position	20	41.09
EUR 0.02 ordinary	equity swap	increasing a long position	25	41.10
EUR 0.02 ordinary	equity swap	increasing a long position	257	41.11
EUR 0.02 ordinary	equity swap	increasing a long position	116	41.12
EUR 0.02 ordinary	equity swap	increasing a long position	101	41.13
EUR 0.02 ordinary	equity swap	increasing a long position	37	41.14
EUR 0.02 ordinary	equity swap	increasing a long position	249	41.15
EUR 0.02 ordinary	equity swap	increasing a long position	300	41.16
EUR 0.02 ordinary	equity swap	increasing a long position	57	41.17
EUR 0.02 ordinary	equity swap	increasing a long position	584	41.20
EUR 0.02 ordinary	equity swap	increasing a long position	128	41.22
EUR 0.02 ordinary	equity swap	increasing a long position	372	41.24
EUR 0.02 ordinary	equity swap	increasing a long position	93	41.26
EUR 0.02 ordinary	equity swap	increasing a long position	219	41.27
EUR 0.02 ordinary	equity swap	increasing a long position	259	41.28
EUR 0.02 ordinary	equity swap	increasing a long position	198	41.30
EUR 0.02 ordinary	equity swap	increasing a long position	147	41.32
EUR 0.02 ordinary	equity swap	increasing a long position	169	41.34
EUR 0.02 ordinary	equity swap	increasing a long position	864	41.36
EUR 0.02 ordinary	equity swap	increasing a long position	28	41.38
EUR 0.02 ordinary	equity swap	increasing a long position	20	41.39
EUR 0.02 ordinary	equity swap	increasing a long position	20	41.40
EUR 0.02 ordinary	equity swap	increasing a long position	34	41.48
EUR 0.02 ordinary	equity swap	increasing a long position	67	41.59
EUR 0.02 ordinary	equity swap	increasing a long position	85	41.62
EUR 0.02 ordinary	equity swap	increasing a long position	28	41.64
EUR 0.02 ordinary	equity swap	increasing a long position	246	41.75
EUR 0.02 ordinary	equity swap	increasing a long position	95	41.76
EUR 0.02 ordinary	equity swap	increasing a long position	32	41.78
EUR 0.02 ordinary	equity swap	increasing a long position	19	41.79
EUR 0.02 ordinary	equity swap	increasing a long position	125	41.80
EUR 0.02 ordinary	equity swap	increasing a long position	301	41.84
EUR 0.02 ordinary	equity swap	increasing a long position	101	41.86
EUR 0.02 ordinary	equity swap	increasing a long position	26	41.89
EUR 0.02 ordinary	equity swap	increasing a long position	42	41.90
EUR 0.02 ordinary	equity swap	increasing a long position	38	41.96
EUR 0.02 ordinary	equity swap	increasing a long position	40	42.00
EUR 0.02 ordinary	equity swap	increasing a long position	97	42.02

(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:	02-06-2026
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.