Citadel Group — Major Shareholding Notification 2026

May 26, 2026

National Storage Mechanism | Additional information

RNS Number : 5472F

Citadel Group

26 May 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	22 May 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:	4,208	0.01	21,651	0.06
(2) Cash-settled derivatives:	591,085	1.65	14	0.00
(3) Stock-settled derivatives (including options) and agreements to purchase/sell:	0	0.00	0	0.00
TOTAL:	595,293	1.66	21,665	0.06

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	873	37.6600 EUR
Common	Buy Transaction	41	37.9600 EUR
Common	Buy Transaction	10	38.0600 EUR
Common	Buy Transaction	315	38.1000 EUR
Common	Buy Transaction	175	38.1200 EUR
Common	Buy Transaction	100	38.1600 EUR
Common	Buy Transaction	732	38.2000 EUR
Common	Buy Transaction	391	38.2400 EUR
Common	Buy Transaction	140	38.3000 EUR
Common	Buy Transaction	152	38.3200 EUR
Common	Buy Transaction	90	38.3400 EUR
Common	Buy Transaction	55	38.3800 EUR
Common	Buy Transaction	1,393	38.4000 EUR
Common	Buy Transaction	240	38.4200 EUR
Common	Buy Transaction	44	38.4600 EUR
Common	Buy Transaction	790	38.5000 EUR
Common	Buy Transaction	141	38.5200 EUR
Common	Buy Transaction	435	38.5400 EUR
Common	Buy Transaction	145	38.5600 EUR
Common	Buy Transaction	275	38.5800 EUR
Common	Buy Transaction	29	38.6000 EUR
Common	Buy Transaction	1,180	38.6400 EUR
Common	Buy Transaction	256	38.7400 EUR
Common	Buy Transaction	11	38.8200 EUR
Common	Buy Transaction	75	38.9000 EUR
Common	Buy Transaction	75	38.9200 EUR
Common	Buy Transaction	383	38.9400 EUR
Common	Buy Transaction	620	38.9800 EUR
Common	Buy Transaction	78	39.0000 EUR
Common	Buy Transaction	265	39.0200 EUR
Common	Buy Transaction	387	39.0400 EUR
Common	Buy Transaction	287	39.0600 EUR
Common	Sell Transaction	210	37.7200 EUR
Common	Sell Transaction	75	37.7400 EUR
Common	Sell Transaction	175	37.8400 EUR
Common	Sell Transaction	225	37.8800 EUR
Common	Sell Transaction	202	37.9000 EUR
Common	Sell Transaction	169	37.9200 EUR
Common	Sell Transaction	175	37.9400 EUR
Common	Sell Transaction	171	37.9600 EUR
Common	Sell Transaction	111	38.0000 EUR
Common	Sell Transaction	75	38.1000 EUR
Common	Sell Transaction	157	38.1600 EUR
Common	Sell Transaction	276	38.2200 EUR
Common	Sell Transaction	336	38.3000 EUR
Common	Sell Transaction	3	38.4000 EUR
Common	Sell Transaction	360	38.4200 EUR
Common	Sell Transaction	63	38.4600 EUR
Common	Sell Transaction	50	38.4800 EUR
Common	Sell Transaction	75	38.5000 EUR
Common	Sell Transaction	220	38.5200 EUR
Common	Sell Transaction	388	38.5400 EUR
Common	Sell Transaction	449	38.5600 EUR
Common	Sell Transaction	314	38.6000 EUR
Common	Sell Transaction	596	38.6200 EUR
Common	Sell Transaction	576	38.6400 EUR
Common	Sell Transaction	375	38.7000 EUR
Common	Sell Transaction	138	38.7600 EUR
Common	Sell Transaction	360	38.8000 EUR
Common	Sell Transaction	92	38.9600 EUR
Common	Sell Transaction	75	38.9800 EUR
Common	Sell Transaction	1,422	38.9866 EUR
Common	Sell Transaction	292	39.0000 EUR
Common	Sell Transaction	370	39.0200 EUR
Common	Sell Transaction	376	39.0400 EUR
Common	Sell Transaction	245	39.0600 EUR
Common	Sell Transaction	113	39.0800 EUR
Common	Sell Transaction	80	39.1000 EUR
Common	Sell Transaction	151	39.1200 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	153	37.6494 EUR
Common	CFD	Reducing long position	6,843	38.2409 EUR
Common	CFD	Reducing long position	152	38.3202 EUR
Common	CFD	Increasing long position	24,325	38.4653 EUR
Common	CFD	Increasing long position	14	38.4800 EUR
Common	CFD	Reducing long position	2,152	38.5362 EUR
Common	CFD	Increasing long position	2,562	38.8401 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:	25 May 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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