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	19-05-2026
(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	6,800	0.01
(2) Cash-settled derivatives:	754,031	2.11	0	0.00
(3) Stock-settled derivatives (including options) and agreements to purchase/sell:	300	0.00	2,600	0.00
TOTAL:	754,331	2.11	9,400	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:	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	182	35.16
EUR 0.02 ordinary	equity swap	decreasing a long position	525	35.18
EUR 0.02 ordinary	equity swap	decreasing a long position	174	35.20
EUR 0.02 ordinary	equity swap	decreasing a long position	350	35.22
EUR 0.02 ordinary	equity swap	decreasing a long position	3506	35.26
EUR 0.02 ordinary	equity swap	decreasing a long position	789	35.28
EUR 0.02 ordinary	equity swap	decreasing a long position	199	35.32
EUR 0.02 ordinary	equity swap	decreasing a long position	68	35.40
EUR 0.02 ordinary	equity swap	decreasing a long position	513	35.42
EUR 0.02 ordinary	equity swap	decreasing a long position	1757	35.50
EUR 0.02 ordinary	equity swap	decreasing a long position	54	35.52
EUR 0.02 ordinary	equity swap	decreasing a long position	350	35.54
EUR 0.02 ordinary	equity swap	decreasing a long position	380	35.60
EUR 0.02 ordinary	equity swap	decreasing a long position	127	35.68
EUR 0.02 ordinary	equity swap	decreasing a long position	504	35.70
EUR 0.02 ordinary	equity swap	decreasing a long position	227	35.72
EUR 0.02 ordinary	equity swap	decreasing a long position	985	35.74
EUR 0.02 ordinary	equity swap	decreasing a long position	106	35.76
EUR 0.02 ordinary	equity swap	decreasing a long position	39	35.78
EUR 0.02 ordinary	equity swap	decreasing a long position	280	35.86
EUR 0.02 ordinary	equity swap	decreasing a long position	1445	35.88
EUR 0.02 ordinary	equity swap	decreasing a long position	2344	35.90
EUR 0.02 ordinary	equity swap	decreasing a long position	300	35.92
EUR 0.02 ordinary	equity swap	decreasing a long position	112	35.93
EUR 0.02 ordinary	equity swap	decreasing a long position	1545	35.96
EUR 0.02 ordinary	equity swap	decreasing a long position	320	35.98
EUR 0.02 ordinary	equity swap	decreasing a long position	5730	36.00
EUR 0.02 ordinary	equity swap	decreasing a long position	746	36.06
EUR 0.02 ordinary	equity swap	decreasing a long position	611	36.10
EUR 0.02 ordinary	equity swap	decreasing a long position	475	36.12
EUR 0.02 ordinary	equity swap	decreasing a long position	312	36.14
EUR 0.02 ordinary	equity swap	decreasing a long position	981	36.16
EUR 0.02 ordinary	equity swap	decreasing a long position	163	36.18
EUR 0.02 ordinary	equity swap	decreasing a long position	1284	36.20
EUR 0.02 ordinary	equity swap	decreasing a long position	768	36.22
EUR 0.02 ordinary	equity swap	decreasing a long position	686	36.24
EUR 0.02 ordinary	equity swap	decreasing a long position	840	36.26
EUR 0.02 ordinary	equity swap	decreasing a long position	350	36.28
EUR 0.02 ordinary	equity swap	decreasing a long position	74	36.30
EUR 0.02 ordinary	equity swap	decreasing a long position	631	36.40
EUR 0.02 ordinary	equity swap	decreasing a long position	114	36.46
EUR 0.02 ordinary	equity swap	decreasing a long position	150	36.48
EUR 0.02 ordinary	equity swap	decreasing a long position	75	36.64
EUR 0.02 ordinary	equity swap	decreasing a short position	1	35.24
EUR 0.02 ordinary	equity swap	decreasing a short position	1	35.30
EUR 0.02 ordinary	equity swap	decreasing a short position	1	35.31
EUR 0.02 ordinary	equity swap	decreasing a short position	1	35.66
EUR 0.02 ordinary	equity swap	decreasing a short position	1	35.70
EUR 0.02 ordinary	equity swap	decreasing a short position	1	36.04
EUR 0.02 ordinary	equity swap	decreasing a short position	10	36.08
EUR 0.02 ordinary	equity swap	increasing a long position	122	35.22
EUR 0.02 ordinary	equity swap	increasing a long position	8260	35.42
EUR 0.02 ordinary	equity swap	increasing a long position	113	35.46
EUR 0.02 ordinary	equity swap	increasing a long position	18	35.52
EUR 0.02 ordinary	equity swap	increasing a long position	205	35.72
EUR 0.02 ordinary	equity swap	increasing a long position	111	35.92
EUR 0.02 ordinary	equity swap	increasing a long position	53	35.96
EUR 0.02 ordinary	equity swap	increasing a long position	61	35.98
EUR 0.02 ordinary	equity swap	increasing a long position	206	36.08
EUR 0.02 ordinary	equity swap	increasing a long position	21	36.10
EUR 0.02 ordinary	equity swap	increasing a long position	51	36.12
EUR 0.02 ordinary	equity swap	increasing a long position	132	36.14
EUR 0.02 ordinary	equity swap	increasing a long position	37	36.18
EUR 0.02 ordinary	equity swap	increasing a long position	26	36.20
EUR 0.02 ordinary	equity swap	increasing a long position	162	36.48
EUR 0.02 ordinary	equity swap	increasing a long position	100	36.50
EUR 0.02 ordinary	equity swap	increasing a short position	2	35.18
EUR 0.02 ordinary	equity swap	increasing a short position	15	35.19
EUR 0.02 ordinary	equity swap	increasing a short position	48	35.20
EUR 0.02 ordinary	equity swap	increasing a short position	53	35.20
EUR 0.02 ordinary	equity swap	increasing a short position	3	35.21
EUR 0.02 ordinary	equity swap	increasing a short position	1	35.21
EUR 0.02 ordinary	equity swap	increasing a short position	13	35.21
EUR 0.02 ordinary	equity swap	increasing a short position	108	35.22
EUR 0.02 ordinary	equity swap	increasing a short position	2	35.22
EUR 0.02 ordinary	equity swap	increasing a short position	457	35.23
EUR 0.02 ordinary	equity swap	increasing a short position	2	35.24
EUR 0.02 ordinary	equity swap	increasing a short position	56	35.24
EUR 0.02 ordinary	equity swap	increasing a short position	313	35.24
EUR 0.02 ordinary	equity swap	increasing a short position	22	35.24
EUR 0.02 ordinary	equity swap	increasing a short position	1	35.24
EUR 0.02 ordinary	equity swap	increasing a short position	1	35.25
EUR 0.02 ordinary	equity swap	increasing a short position	94	35.26
EUR 0.02 ordinary	equity swap	increasing a short position	1	35.28
EUR 0.02 ordinary	equity swap	increasing a short position	405	35.28
EUR 0.02 ordinary	equity swap	increasing a short position	27	35.28
EUR 0.02 ordinary	equity swap	increasing a short position	1	35.29
EUR 0.02 ordinary	equity swap	increasing a short position	2	35.29
EUR 0.02 ordinary	equity swap	increasing a short position	1	35.29
EUR 0.02 ordinary	equity swap	increasing a short position	223	35.30
EUR 0.02 ordinary	equity swap	increasing a short position	79	35.31
EUR 0.02 ordinary	equity swap	increasing a short position	1	35.31
EUR 0.02 ordinary	equity swap	increasing a short position	70	35.32
EUR 0.02 ordinary	equity swap	increasing a short position	1	35.32
EUR 0.02 ordinary	equity swap	increasing a short position	13	35.32
EUR 0.02 ordinary	equity swap	increasing a short position	271	35.32
EUR 0.02 ordinary	equity swap	increasing a short position	1	35.33
EUR 0.02 ordinary	equity swap	increasing a short position	144	35.34
EUR 0.02 ordinary	equity swap	increasing a short position	13	35.34
EUR 0.02 ordinary	equity swap	increasing a short position	46	35.34
EUR 0.02 ordinary	equity swap	increasing a short position	1	35.35
EUR 0.02 ordinary	equity swap	increasing a short position	44	35.35
EUR 0.02 ordinary	equity swap	increasing a short position	2	35.37
EUR 0.02 ordinary	equity swap	increasing a short position	45	35.37
EUR 0.02 ordinary	equity swap	increasing a short position	144	35.38
EUR 0.02 ordinary	equity swap	increasing a short position	326	35.40
EUR 0.02 ordinary	equity swap	increasing a short position	23	35.41
EUR 0.02 ordinary	equity swap	increasing a short position	60	35.41
EUR 0.02 ordinary	equity swap	increasing a short position	1	35.41
EUR 0.02 ordinary	equity swap	increasing a short position	4035	35.42
EUR 0.02 ordinary	equity swap	increasing a short position	2	35.42
EUR 0.02 ordinary	equity swap	increasing a short position	1	35.44
EUR 0.02 ordinary	equity swap	increasing a short position	406	35.44
EUR 0.02 ordinary	equity swap	increasing a short position	2	35.45
EUR 0.02 ordinary	equity swap	increasing a short position	54	35.47
EUR 0.02 ordinary	equity swap	increasing a short position	2	35.48
EUR 0.02 ordinary	equity swap	increasing a short position	8	35.48
EUR 0.02 ordinary	equity swap	increasing a short position	2	35.48
EUR 0.02 ordinary	equity swap	increasing a short position	1	35.48
EUR 0.02 ordinary	equity swap	increasing a short position	90	35.50
EUR 0.02 ordinary	equity swap	increasing a short position	104	35.52
EUR 0.02 ordinary	equity swap	increasing a short position	2	35.54
EUR 0.02 ordinary	equity swap	increasing a short position	160	35.54
EUR 0.02 ordinary	equity swap	increasing a short position	115	35.58
EUR 0.02 ordinary	equity swap	increasing a short position	90	35.62
EUR 0.02 ordinary	equity swap	increasing a short position	2	35.66
EUR 0.02 ordinary	equity swap	increasing a short position	1	35.66
EUR 0.02 ordinary	equity swap	increasing a short position	144	35.66
EUR 0.02 ordinary	equity swap	increasing a short position	84	35.68
EUR 0.02 ordinary	equity swap	increasing a short position	16	35.70
EUR 0.02 ordinary	equity swap	increasing a short position	2	35.71
EUR 0.02 ordinary	equity swap	increasing a short position	2	35.71
EUR 0.02 ordinary	equity swap	increasing a short position	72	35.74
EUR 0.02 ordinary	equity swap	increasing a short position	2	35.75
EUR 0.02 ordinary	equity swap	increasing a short position	86	35.76
EUR 0.02 ordinary	equity swap	increasing a short position	1	35.84
EUR 0.02 ordinary	equity swap	increasing a short position	76	35.85
EUR 0.02 ordinary	equity swap	increasing a short position	80	35.87
EUR 0.02 ordinary	equity swap	increasing a short position	19	35.90
EUR 0.02 ordinary	equity swap	increasing a short position	2	35.90
EUR 0.02 ordinary	equity swap	increasing a short position	2	35.94
EUR 0.02 ordinary	equity swap	increasing a short position	2	35.95
EUR 0.02 ordinary	equity swap	increasing a short position	2	35.98
EUR 0.02 ordinary	equity swap	increasing a short position	2	35.98
EUR 0.02 ordinary	equity swap	increasing a short position	10	35.99
EUR 0.02 ordinary	equity swap	increasing a short position	2	36.02
EUR 0.02 ordinary	equity swap	increasing a short position	32	36.06
EUR 0.02 ordinary	equity swap	increasing a short position	25	36.10
EUR 0.02 ordinary	equity swap	increasing a short position	1	36.12
EUR 0.02 ordinary	equity swap	increasing a short position	24	36.12
EUR 0.02 ordinary	equity swap	increasing a short position	13	36.14
EUR 0.02 ordinary	equity swap	increasing a short position	2	36.15
EUR 0.02 ordinary	equity swap	increasing a short position	1	36.18
EUR 0.02 ordinary	equity swap	increasing a short position	2	36.19
EUR 0.02 ordinary	equity swap	increasing a short position	1	36.22
EUR 0.02 ordinary	equity swap	increasing a short position	2	36.23
EUR 0.02 ordinary	equity swap	increasing a short position	2	36.24
EUR 0.02 ordinary	equity swap	increasing a short position	12	36.26
EUR 0.02 ordinary	equity swap	increasing a short position	2	36.27
EUR 0.02 ordinary	equity swap	increasing a short position	1	36.34
EUR 0.02 ordinary	equity swap	increasing a short position	1	36.37
EUR 0.02 ordinary	equity swap	increasing a short position	19	36.62

(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 (EUR)

Type e.g. American, European etc.

Expiry date

Option money paid/ received per unit (EUR)

(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:	20-05-2026
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	2500	EUR 36	American	06/19/26
Common Stock	Call Option	Purchased	300	EUR 40	American	06/19/26
Common Stock	Put Option	Written	100	EUR 35	American	06/19/26

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.