RNS Number : 8816G

Citadel Group

03 June 2026

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:	Citadel Group
(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.	N/A
(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:	N/A
(e) Date position held/dealing undertaken:      For an opening position disclosure, state the latest practicable date prior to the disclosure	2 June 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"	NO

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:	ISIN NL0000888691 EUR 0.02 ordinary
	Interests		Short positions
	Number	%	Number	%
(1) Relevant securities owned and/or controlled:	11,245	0.03	10,381	0.02
(2) Cash-settled derivatives:	643,251	1.79	14	0.00
(3) Stock-settled derivatives (including options) and agreements to purchase/sell:	0	0.00	0	0.00
TOTAL:	654,496	1.83	10,395	0.02

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:	N/A
Details, including nature of the rights concerned and relevant percentages:	N/A

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
Common	Buy Transaction	235	40.9200 EUR
Common	Buy Transaction	166	40.9400 EUR
Common	Buy Transaction	208	40.9600 EUR
Common	Buy Transaction	566	40.9800 EUR
Common	Buy Transaction	801	41.0000 EUR
Common	Buy Transaction	263	41.0200 EUR
Common	Buy Transaction	486	41.0400 EUR
Common	Buy Transaction	582	41.0600 EUR
Common	Buy Transaction	1,948	41.0800 EUR
Common	Buy Transaction	599	41.1000 EUR
Common	Buy Transaction	1,658	41.1175 EUR
Common	Buy Transaction	511	41.1200 EUR
Common	Buy Transaction	839	41.1400 EUR
Common	Buy Transaction	456	41.1600 EUR
Common	Buy Transaction	269	41.1800 EUR
Common	Buy Transaction	209	41.2000 EUR
Common	Buy Transaction	74	41.2200 EUR
Common	Buy Transaction	199	41.2400 EUR
Common	Buy Transaction	69	41.2600 EUR
Common	Buy Transaction	1,330	41.2800 EUR
Common	Buy Transaction	75	41.3200 EUR
Common	Buy Transaction	13	41.3600 EUR
Common	Buy Transaction	1	41.3800 EUR
Common	Buy Transaction	684	41.4400 EUR
Common	Buy Transaction	69	41.4600 EUR
Common	Buy Transaction	22	41.5000 EUR
Common	Buy Transaction	20	41.5400 EUR
Common	Buy Transaction	75	41.5600 EUR
Common	Buy Transaction	16	41.6400 EUR
Common	Buy Transaction	141	41.9400 EUR
Common	Buy Transaction	75	41.9600 EUR
Common	Buy Transaction	33	42.1200 EUR
Common	Sell Transaction	75	40.9200 EUR
Common	Sell Transaction	172	40.9400 EUR
Common	Sell Transaction	68	40.9600 EUR
Common	Sell Transaction	61	40.9800 EUR
Common	Sell Transaction	27	41.0000 EUR
Common	Sell Transaction	78	41.0200 EUR
Common	Sell Transaction	185	41.0400 EUR
Common	Sell Transaction	358	41.0600 EUR
Common	Sell Transaction	23	41.0800 EUR
Common	Sell Transaction	219	41.1000 EUR
Common	Sell Transaction	76	41.1200 EUR
Common	Sell Transaction	983	41.1400 EUR
Common	Sell Transaction	387	41.1600 EUR
Common	Sell Transaction	656	41.1800 EUR
Common	Sell Transaction	103	41.2000 EUR
Common	Sell Transaction	502	41.2400 EUR
Common	Sell Transaction	62	41.2600 EUR
Common	Sell Transaction	635	41.2800 EUR
Common	Sell Transaction	130	41.3000 EUR
Common	Sell Transaction	9	41.3800 EUR
Common	Sell Transaction	330	41.4200 EUR
Common	Sell Transaction	360	41.4400 EUR
Common	Sell Transaction	350	41.4600 EUR
Common	Sell Transaction	78	41.4800 EUR
Common	Sell Transaction	300	41.5400 EUR
Common	Sell Transaction	2	41.6000 EUR
Common	Sell Transaction	348	41.6200 EUR
Common	Sell Transaction	16	41.6400 EUR
Common	Sell Transaction	67	41.9000 EUR
Common	Sell Transaction	75	42.0200 EUR

(b)        Cash-settled derivative transactions

Class of relevant security	Product description e.g. CFD	Nature of dealing e.g. opening/closing a long/short position, increasing/reducing a long/short position	Number of reference securities	Price per unit
Common	CFD	Increasing long position	62	41.0400 EUR
Common	CFD	Increasing long position	7,235	41.1875 EUR
Common	CFD	Reducing long position	5,513	41.2152 EUR
Common	CFD	Reducing long position	2,469	41.2419 EUR
Common	CFD	Increasing long position	3,026	41.2711 EUR
Common	CFD	Reducing long position	607	41.2800 EUR

(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 Type e.g. American, European etc. Expiry date Option money paid/ received per unit

(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? NO

Date of disclosure:	3 June 2026
Contact name:	Paula Santos
Telephone number*:	020 7645 9700

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 +44 (0)20 7638 0129.

*If the discloser is a natural person, a telephone number does not need to be included, provided contact information has been provided to the Panel's Market Surveillance Unit.

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

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