Constellium SE (CSTM) director Jean-Philippe Puig reports 23,600 shares

Rhea-AI Filing Summary

Constellium SE director Jean-Philippe Puig reported his beneficial ownership of the company’s shares as required for insiders. As of the event date of 01/01/2026, he beneficially owned 23,600 ordinary shares of Constellium SE, held in direct form. The filing is a Form 3, which is used to disclose an insider’s initial ownership position. The document was signed by Kristine Carpenter as attorney-in-fact for Jean-Philippe Puig.

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Puig Jean-Philippe

(Last) (First) (Middle)

300 EAST LOMBARD STREET

SUITE 1710

(Street)

BALTIMORE MD 21202

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
01/01/2026

3. Issuer Name and Ticker or Trading Symbol
CONSTELLIUM SE [ CSTM ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Ordinary shares	23,600	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

	/s/ Kristine Carpenter, Attorney-in-Fact for Jean-Philippe Puig	01/02/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What does the latest Form 3 filing reveal about CONSTELLIUM SE (CSTM)?

The Form 3 shows that director Jean-Philippe Puig beneficially owns 23,600 ordinary shares of Constellium SE, held directly.

Who is the reporting person in CONSTELLIUM SE (CSTM)'s recent insider ownership filing?

The reporting person is Jean-Philippe Puig, who is identified in the filing as a director of Constellium SE.

How many CONSTELLIUM SE (CSTM) shares does the director report owning?

The director reports beneficial ownership of 23,600 ordinary shares of Constellium SE in Table I of the filing.

Is the ownership reported by the CONSTELLIUM SE (CSTM) director direct or indirect?

The Form 3 indicates that the 23,600 ordinary shares are held with an ownership form of Direct (D).

Does CONSTELLIUM SE (CSTM)'s director report any derivative securities?

Table II for derivative securities is present but shows no listed derivative positions for the reporting director.

Who signed the CONSTELLIUM SE (CSTM) Form 3 insider ownership statement?

The Form 3 was signed by Kristine Carpenter as Attorney-in-Fact for Jean-Philippe Puig on 01/02/2026.