Constellium SE (NYSE: CSTM) insider sells 29,900 shares on 03/10/2026

Rhea-AI Filing Summary

Constellium SE reported a Form 144 notice showing the sale of 29,900 shares of Common Stock by Ryan Jurkovic on 03/10/2026, with proceeds listed as $773,606.65. The filing also lists multiple equity compensation awards (RSUs and PSUs) granted on 07/31/2020, 04/01/2022, 04/07/2023, and 03/10/2025 with individual award counts enumerated.

Key Figures

Shares sold: 29,900 shares Proceeds: $773,606.65 RSU grant example: 6,437 shares +2 more

5 metrics

Shares sold 29,900 shares sale by Ryan Jurkovic on 03/10/2026

Proceeds $773,606.65 proceeds reported for 03/10/2026 sale

RSU grant example 6,437 shares RSU granted 07/31/2020

PSU grant example 4,000 shares PSU granted 07/31/2020

PSU grant (2025) 9,534 shares PSU granted 03/10/2025

Key Terms

Form 144, RSU, PSU, proceeds

4 terms

Form 144 regulatory

"Securities Sold During The Past 3 Months"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

RSU financial

"Common | 07/31/2020 | RSU | Constellium SE (issuer)"

Restricted stock units (RSUs) are a form of company shares given to employees as part of their compensation, usually with certain restrictions or conditions, such as remaining with the company for a set period. When these restrictions lift, employees receive actual shares that they can sell or hold. For investors, RSUs can impact a company's stock supply and reflect the company's commitment to attracting and retaining talent.

PSU financial

"Common | 07/31/2020 | PSU | Constellium SE (issuer)"

A PSU is a company where the government owns a controlling stake and often plays a direct role in its management and strategy. Think of it like a business that operates with public oversight, similar to a town-run utility versus a private neighborhood service. Investors watch PSUs differently because government involvement can affect profits, dividend policies, regulatory treatment and stability, so these stocks may behave more like policy instruments than pure market-driven enterprises.

proceeds financial

"03/10/2026 | 29900 | 773606.65"

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common Stock	J.P. Morgan Securities LLC 270 Park Ave 10th Floor New York NY 10017	48784	1561358.75	135069771	05/01/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	07/31/2020	RSU	Constellium SE (issuer)			6437	07/31/2020	equity compensation
Common	07/31/2020	PSU	Constellium SE (issuer)			4000	07/31/2020	equity compensation
Common	04/01/2022	PSU	Constellium SE (issuer)			5000	04/01/2022	equity compensation
Common	04/01/2022	RSU	Constellium SE (issuer)			7827	04/01/2022	equity compensation
Common	04/07/2023	RSU	Constellium SE (issuer)			12961	04/07/2023	equity compensation
Common	03/10/2025	RSU	Constellium SE (issuer)			3025	03/10/2025	equity compensation
Common	03/10/2025	PSU	Constellium SE (issuer)			9534	03/10/2025	equity compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Ryan Jurkovic 4439 South Meadow Court Ellicott City MD 21042	common	03/10/2026	29900	773606.65

144: Remarks and Signature

Remarks

Date of Notice

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What did Constellium (CSTM) disclose in the Form 144?

The Form 144 discloses that Ryan Jurkovic sold 29,900 shares of Common Stock on 03/10/2026, with proceeds of $773,606.65. The filing also lists prior RSU/PSU awards with grant dates and share counts.

Who reported the sale and how many shares were sold?

The sale was reported by Ryan Jurkovic, who sold 29,900 shares of Constellium Common Stock on 03/10/2026. The filing ties this transaction to the Form 144 selling disclosure.

What proceeds were recorded for the 03/10/2026 sale?

Proceeds from the sale on 03/10/2026 are listed as $773,606.65. The Form 144 entry associates this dollar amount with the 29,900-share disposition.

Does the filing show equity awards that might relate to the sale?

The filing lists multiple equity compensation awards: RSUs and PSUs granted on 07/31/2020, 04/01/2022, 04/07/2023, and 03/10/2025, with award counts such as 6,437, 4,000, and 9,534 shown.

Are the listed RSU/PSU counts and dates shown in the Form 144?

Yes. The filing itemizes awards and dates, for example RSU 6,437 (07/31/2020), PSU 4,000 (07/31/2020), and PSU 9,534 (03/10/2025), among others, as part of the securities information.