Constellium (CSTM) CEO clarifies 311,572-share ownership in Form 3/A

Rhea-AI Filing Summary

CONSTELLIUM SE CEO Ingrid Joerg has amended her initial insider holdings report. The amended Form 3 shows she holds 311,572 ordinary shares as of January 1, 2026. This total consists of 186,691 ordinary shares and 124,881 restricted stock units that remain subject to vesting and were inadvertently omitted from the original Form 3 filing.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Joerg Ingrid

Role CEO

Type	Security	Shares	Price	Value
holding	Ordinary shares	--	--	--

Holdings After Transaction: Ordinary shares — 311,572 shares (Direct)

Footnotes (1)

1. [object Object]

Understanding Insider Trading Forms →

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

OMB APPROVAL

OMB Number:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Joerg Ingrid

(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
X	Officer (give title below)		Other (specify below)
	CEO

5. If Amendment, Date of Original Filed (Month/Day/Year)
01/02/2026

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	311,572(1)	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:

1. Amount consists of (i) 186,691 ordinary shares held by the Reporting Person as of January 1, 2026 and (ii) an aggregate of 124,881 restricted stock units which remain subject to vesting restrictions and which were inadvertently omitted from the Reporting Person's original Form 3 filing.

Remarks:

	/s/ Kristine Carpenter, Attorney-in-Fact for Ingrid Joerg	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 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 Constellium (CSTM) CEO Ingrid Joerg report in this amended Form 3?

The amended Form 3 reports that CEO Ingrid Joerg holds a total of 311,572 ordinary shares. This includes both directly held shares and restricted stock units that were previously omitted from her initial ownership report.

How many Constellium (CSTM) ordinary shares does the CEO hold directly?

Ingrid Joerg holds 186,691 ordinary shares directly as of January 1, 2026. These are standard equity holdings separate from restricted stock units that are still subject to vesting conditions over time.

How many restricted stock units does the Constellium (CSTM) CEO report in this amendment?

The amendment discloses 124,881 restricted stock units for Ingrid Joerg. These units remain subject to vesting restrictions and were inadvertently left out of her original Form 3 insider ownership filing.

Why did Constellium (CSTM) file an amended Form 3 for its CEO?

The amended Form 3 corrects an omission in the CEO’s original insider ownership report. It adds 124,881 restricted stock units that were inadvertently left out, providing a more complete picture of her total equity position.

Does this Constellium (CSTM) Form 3/A show any insider buying or selling?

The Form 3/A does not report any new buying or selling transactions. It updates and clarifies the CEO’s total holdings by adding previously omitted restricted stock units to the disclosed ownership figure.