Citadel Group — Major Shareholding Notification 2026

Jun 8, 2026

National Storage Mechanism | Additional information

RNS Number : 4384H

Citadel Group

08 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	5 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:	0	0.00	16,264	0.04
(2) Cash-settled derivatives:	608,092	1.70	14	0.00
(3) Stock-settled derivatives (including options) and agreements to purchase/sell:	0	0.00	0	0.00
TOTAL:	608,092	1.70	16,278	0.04

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	75	36.2000 EUR
Common	Buy Transaction	128	36.2200 EUR
Common	Buy Transaction	137	36.2400 EUR
Common	Buy Transaction	324	36.2600 EUR
Common	Buy Transaction	159	36.2800 EUR
Common	Buy Transaction	261	36.3000 EUR
Common	Buy Transaction	694	36.3400 EUR
Common	Buy Transaction	240	36.3600 EUR
Common	Buy Transaction	145	36.3800 EUR
Common	Buy Transaction	1,581	36.4000 EUR
Common	Buy Transaction	299	36.4200 EUR
Common	Buy Transaction	250	36.4400 EUR
Common	Buy Transaction	187	36.4600 EUR
Common	Buy Transaction	295	36.4800 EUR
Common	Buy Transaction	5,583	36.5000 EUR
Common	Buy Transaction	279	36.5400 EUR
Common	Buy Transaction	94	36.5800 EUR
Common	Buy Transaction	20	36.6000 EUR
Common	Buy Transaction	657	36.6200 EUR
Common	Buy Transaction	137	36.6400 EUR
Common	Buy Transaction	497	36.6600 EUR
Common	Buy Transaction	384	36.6800 EUR
Common	Buy Transaction	356	36.7000 EUR
Common	Buy Transaction	418	36.7200 EUR
Common	Buy Transaction	1,587	36.7400 EUR
Common	Buy Transaction	455	36.7600 EUR
Common	Buy Transaction	625	36.7800 EUR
Common	Buy Transaction	355	36.8000 EUR
Common	Buy Transaction	333	36.8200 EUR
Common	Buy Transaction	585	36.8400 EUR
Common	Buy Transaction	603	36.8600 EUR
Common	Buy Transaction	651	36.8800 EUR
Common	Buy Transaction	30	36.8900 EUR
Common	Buy Transaction	1,171	36.9000 EUR
Common	Buy Transaction	320	36.9200 EUR
Common	Buy Transaction	75	36.9400 EUR
Common	Buy Transaction	164	36.9600 EUR
Common	Buy Transaction	300	37.0000 EUR
Common	Buy Transaction	72	37.1200 EUR
Common	Buy Transaction	16	37.1400 EUR
Common	Buy Transaction	245	37.1800 EUR
Common	Buy Transaction	118	37.2600 EUR
Common	Buy Transaction	52	37.4400 EUR
Common	Buy Transaction	2	37.5000 EUR
Common	Buy Transaction	2	37.6000 EUR
Common	Sell Transaction	56	36.1800 EUR
Common	Sell Transaction	463	36.2200 EUR
Common	Sell Transaction	461	36.2400 EUR
Common	Sell Transaction	444	36.2600 EUR
Common	Sell Transaction	76	36.2800 EUR
Common	Sell Transaction	306	36.3000 EUR
Common	Sell Transaction	75	36.3200 EUR
Common	Sell Transaction	150	36.3400 EUR
Common	Sell Transaction	373	36.3600 EUR
Common	Sell Transaction	719	36.3800 EUR
Common	Sell Transaction	1,058	36.4000 EUR
Common	Sell Transaction	284	36.4200 EUR
Common	Sell Transaction	662	36.4400 EUR
Common	Sell Transaction	335	36.4600 EUR
Common	Sell Transaction	647	36.4800 EUR
Common	Sell Transaction	265	36.5000 EUR
Common	Sell Transaction	235	36.5200 EUR
Common	Sell Transaction	1,036	36.5400 EUR
Common	Sell Transaction	75	36.5600 EUR
Common	Sell Transaction	137	36.5800 EUR
Common	Sell Transaction	2,595	36.6000 EUR
Common	Sell Transaction	872	36.6200 EUR
Common	Sell Transaction	541	36.6400 EUR
Common	Sell Transaction	468	36.6600 EUR
Common	Sell Transaction	516	36.6800 EUR
Common	Sell Transaction	3,990	36.7000 EUR
Common	Sell Transaction	436	36.7200 EUR
Common	Sell Transaction	261	36.7400 EUR
Common	Sell Transaction	282	36.7600 EUR
Common	Sell Transaction	849	36.7800 EUR
Common	Sell Transaction	1,234	36.8000 EUR
Common	Sell Transaction	421	36.8200 EUR
Common	Sell Transaction	513	36.8400 EUR
Common	Sell Transaction	676	36.8600 EUR
Common	Sell Transaction	428	36.8800 EUR
Common	Sell Transaction	1,296	36.9000 EUR
Common	Sell Transaction	241	36.9200 EUR
Common	Sell Transaction	164	36.9600 EUR
Common	Sell Transaction	5,734	37.0000 EUR
Common	Sell Transaction	104	37.0800 EUR
Common	Sell Transaction	17	37.1000 EUR
Common	Sell Transaction	231	37.2000 EUR
Common	Sell Transaction	104	37.2400 EUR
Common	Sell Transaction	965	37.2600 EUR
Common	Sell Transaction	147	37.3000 EUR
Common	Sell Transaction	62	37.3800 EUR
Common	Sell Transaction	175	37.5200 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	Reducing long position	895	36.3691 EUR
Common	CFD	Increasing long position	3,334	36.3773 EUR
Common	CFD	Increasing long position	182	36.4000 EUR
Common	CFD	Reducing long position	868	36.5000 EUR
Common	CFD	Reducing long position	451	36.5516 EUR
Common	CFD	Reducing long position	23,401	36.5847 EUR
Common	CFD	Reducing long position	5,605	36.6030 EUR
Common	CFD	Reducing long position	405	36.6182 EUR
Common	CFD	Increasing long position	14	36.8000 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:	8 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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