Constellium (CSTM) SVP granted 5,106 shares as performance award

Rhea-AI Filing Summary

Schild Niklaus reported acquisition or exercise transactions in this Form 4 filing.

Constellium SE senior vice president and CIO/CDO Niklaus Schild reported receiving 5,106 ordinary shares as a grant or award. These shares reflect earned performance stock units that were originally granted on March 9, 2023 and vested on March 9, 2026. After this award, Schild directly holds 35,348 ordinary shares, highlighting a routine, compensation-related increase in his equity stake.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Schild Niklaus

Role SVP CIO & CDO

Type	Security	Shares	Price	Value
Grant/Award	Ordinary shares	5,106	$0.00	--

Holdings After Transaction: Ordinary shares — 35,348 shares (Direct)

Footnotes (1)

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Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Schild Niklaus

(Last) (First) (Middle)

300 EAST LOMBARD STREET

SUITE 1710

(Street)

BALTIMORE MD 21202

(City) (State) (Zip)

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

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP CIO & CDO

3. Date of Earliest Transaction (Month/Day/Year)
03/09/2026

4. 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 Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Ordinary shares	03/09/2026		A		5,106(1)	A	$0	35,348	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents earned non-derivative performance stock units of Constellium SE (the "Issuer") granted on March 9, 2023 that contained performance-vesting requirements, which vested on March 9, 2026.

Remarks:

	/s/ Kristine Carpenter, Attorney-in-Fact for Niklaus Schild	03/11/2026
	** 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 4 (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 did Constellium (CSTM) executive Niklaus Schild report in this Form 4?

Niklaus Schild reported acquiring 5,106 ordinary shares of Constellium SE. The shares came from earned performance stock units that vested and increased his direct holdings to 35,348 shares following the transaction.

How many Constellium (CSTM) shares does Niklaus Schild hold after this transaction?

After the reported grant, Niklaus Schild directly holds 35,348 ordinary shares of Constellium SE. This figure reflects his position following the vesting of 5,106 performance-based stock units on March 9, 2026.

What is the nature of the 5,106 Constellium (CSTM) shares acquired by Niklaus Schild?

The 5,106 shares are ordinary shares received through a grant or award. They represent earned non-derivative performance stock units granted in March 2023 that vested on March 9, 2026 based on performance-vesting requirements.

Did Niklaus Schild pay a price per share for the 5,106 Constellium (CSTM) shares?

No cash price was paid per share for these 5,106 Constellium shares. The Form 4 shows a price per share of 0.0000, indicating they were received as a compensation-related grant rather than purchased on the open market.

When were the performance stock units that led to this Constellium (CSTM) share grant originally granted?

The performance stock units were originally granted on March 9, 2023. They included performance-vesting requirements and ultimately vested on March 9, 2026, resulting in the issuance of 5,106 ordinary shares to Niklaus Schild.

What role does Niklaus Schild hold at Constellium (CSTM) related to this Form 4 filing?

Niklaus Schild serves as senior vice president, chief information officer, and chief digital officer of Constellium SE. The reported Form 4 reflects a routine compensation-related equity award associated with his executive role at the company.