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NYSE · USD

CSTM

CONSTELLIUM SE

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Tapewire entity
4106
SEC CIK
0001563411
Parsed reports
79

Last 12 months

Inside the activity.

7 purchase rows · 26 sale rows

Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.
Monthly counts
MonthPurchasesSales
Nov 202500
Dec 202500
Jan 202600
Feb 202605
Mar 2026410
Apr 202600
May 2026210
Jun 202601
Jul 202600
Aug 202610
Sep 202600
Oct 202600

Latest available

Insider transactions

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateOwner / reported roleActivity / securityShares / unitsReported priceReported valueDetails
August 03, 2026 Filed Aug 3, 2026 23:25 UTC PurchaseOrdinary shares 1,490 $27.24 $40,587.60
Disclosure

SEC source: 0001563411-26-000194 · wk-form4_1785799536.xml · nonDerivative · entry 1

Deslarzes Jean-Christophe · CIK 0002092745 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,515

Read SEC document
July 10, 2026 Filed Jul 13, 2026 17:33 UTC
Joerg IngridDirector · CEO
Tax withholdingOrdinary shares 2,984 $29.28 $87,371.52
Disclosure

SEC source: 0001563411-26-000184 · wk-form4_1783964012.xml · nonDerivative · entry 1

Joerg Ingrid · CIK 0002092741 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 406,464

F1 · shares: Disposition represents shares withheld by the Issuer to satisfy tax withholding obligations and does not represent a discretionary transaction by the reporting person.

Read SEC document
June 04, 2026 Filed Jun 8, 2026 13:34 UTC
Ormerod JohnDirector
SaleOrdinary shares 8,000 $35.01 $280,080.00
Disclosure

SEC source: 0001563411-26-000180 · wk-form4_1780925664.xml · nonDerivative · entry 1

Ormerod John · CIK 0002092962 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,873

Read SEC document
May 28, 2026 Filed Jun 1, 2026 17:34 UTC SaleOrdinary shares 10,391 $34.93 $362,957.63
Disclosure

SEC source: 0001563411-26-000178 · wk-form4_1780335272.xml · nonDerivative · entry 1

Becker Marcus · CIK 0002092960 · SVP CPO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,784

F1 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $34.87 to $35.03, inclusive. The reporting person undertakes to provide to Constellium SE, any security holder of Constellium SE, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.

Read SEC document
May 14, 2026 Filed May 18, 2026 15:13 UTC PurchaseOrdinary shares 2,500 $33.84 $84,600.00
Disclosure

SEC source: 0001723486-26-000002 · wk-form4_1779117197.xml · nonDerivative · entry 1

Soultz Bradley Lee · CIK 0001723486 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Bradley L. Soultz Irrevocable Trust

Disclosed balance after: 2,500

F1 · price: The price reported is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $33.81 to $33.84, inclusive. The reporting person undertakes to provide to Constellium SE, any security holder of Constellium SE, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth herein.

Read SEC document
May 14, 2026 Filed May 18, 2026 15:07 UTC
Jarrett MartinSVP Chief Innovation Officer
SaleOrdinary shares 4,716 $33.46 $157,797.36
Disclosure

SEC source: 0002127389-26-000002 · wk-form4_1779116854.xml · nonDerivative · entry 1

Jarrett Martin · CIK 0002127389 · SVP Chief Innovation Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,375

F1 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $33.41 to $33.55, inclusive. The reporting person undertakes to provide to Constellium SE, any security holder of Constellium SE, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.

Read SEC document
May 12, 2026 Filed May 13, 2026 21:45 UTC
Piquier LudovicSVP Manuf Excellence & CTO
SaleOrdinary shares 1,000 $33.57 $33,570.00
Disclosure

SEC source: 0001563411-26-000171 · wk-form4_1778708707.xml · nonDerivative · entry 1

Piquier Ludovic · CIK 0002095117 · SVP Manuf Excellence & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 241,713

F1 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $33.41 to $33.70, inclusive. The reporting person undertakes to provide to Constellium SE, any security holder of Constellium SE, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.

Read SEC document
May 11, 2026 Filed May 12, 2026 15:08 UTC
Brun NicolasSVP PA, Comm & Sust
SaleOrdinary shares 26,661 $33.85 $902,474.85
Disclosure

SEC source: 0001563411-26-000169 · wk-form4_1778598525.xml · nonDerivative · entry 1

Brun Nicolas · CIK 0002093242 · SVP PA, Comm & Sust

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 104,891

F1 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $33.79 to $34.04, inclusive. The reporting person undertakes to provide to Constellium SE, any security holder of Constellium SE, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.

Read SEC document
May 08, 2026 Filed May 12, 2026 15:06 UTC
Corre StephanePresident, AS&I
SaleOrdinary shares 5,000 $33.52 $167,600.00
Disclosure

SEC source: 0001563411-26-000167 · wk-form4_1778598364.xml · nonDerivative · entry 1

Corre Stephane · CIK 0002098782 · President, AS&I

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 62,313

F1 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $33.50 to $33.59, inclusive. The reporting person undertakes to provide to Constellium SE, any security holder of Constellium SE, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.

Read SEC document
May 05, 2026 Filed May 7, 2026 19:41 UTC SaleOrdinary shares 10,400 $31.25 $325,000.00
Disclosure

SEC source: 0001563411-26-000165 · wk-form4_1778182905.xml · nonDerivative · entry 1

Brandjes Michiel · CIK 0002093081 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,600

F1 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $31.00 to $33.00, inclusive. The reporting person undertakes to provide to Constellium SE, any security holder of Constellium SE, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.

Read SEC document
May 05, 2026 Filed May 7, 2026 14:02 UTC
Guo Jack Q.EVP & CFO
SaleOrdinary shares 25,201 $32.62 $822,056.62
Disclosure

SEC source: 0002095182-26-000002 · wk-form4_1778162530.xml · nonDerivative · entry 1

Guo Jack Q. · CIK 0002095182 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 185,368

F1 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $32.62 to $32.68, inclusive. The reporting person undertakes to provide to Constellium SE, any security holder of Constellium SE, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.

Read SEC document
May 01, 2026 Filed May 1, 2026 17:45 UTC PurchaseOrdinary shares 1,325 $31.13 $41,247.25
Disclosure

SEC source: 0001563411-26-000157 · wk-form4_1777657547.xml · nonDerivative · entry 1

Deslarzes Jean-Christophe · CIK 0002092745 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 42,025

Read SEC document
May 01, 2026 Filed May 4, 2026 15:13 UTC SaleOrdinary shares 48,784 $32.01 $1,561,575.84
Disclosure

SEC source: 0001563411-26-000161 · wk-form4_1777907585.xml · nonDerivative · entry 1

Jurkovic Philip Ryan · CIK 0002092842 · SVP & CHRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 172,149

F1 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $32.00 to $32.10, inclusive. The reporting person undertakes to provide to Constellium SE, any security holder of Constellium SE, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.

Read SEC document
May 01, 2026 Filed May 4, 2026 15:08 UTC
Corre StephanePresident, AS&I
SaleOrdinary shares 5,000 $32.04 $160,200.00
Disclosure

SEC source: 0001563411-26-000159 · wk-form4_1777907286.xml · nonDerivative · entry 1

Corre Stephane · CIK 0002098782 · President, AS&I

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 67,313

F1 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $32.00 to $32.11, inclusive. The reporting person undertakes to provide to Constellium SE, any security holder of Constellium SE, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.

Read SEC document
May 01, 2026 Filed May 5, 2026 15:39 UTC
Hoffmann PhilippePresident, A&T
SaleOrdinary shares 50,000 $31.92 $1,596,000.00
Disclosure

SEC source: 0001563411-26-000163 · wk-form4_1777995526.xml · nonDerivative · entry 1

Hoffmann Philippe · CIK 0002093449 · President, A&T

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 144,153

F1 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $31.77 to $32.16, inclusive. The reporting person undertakes to provide to Constellium SE, any security holder of Constellium SE, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.

Read SEC document
March 16, 2026 Filed Mar 17, 2026 20:40 UTC SaleOrdinary shares 10,000 $25.09 $250,900.00
Disclosure

SEC source: 0001563411-26-000129 · wk-form4_1773780038.xml · nonDerivative · entry 1

Becker Marcus · CIK 0002092960 · SVP CPO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,175

F1 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.08 to $25.11, inclusive. The reporting person undertakes to provide to Constellium SE, any security holder of Constellium SE, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.

Read SEC document
March 12, 2026 Filed Mar 16, 2026 14:02 UTC
Walters Stephen CharlesSVP GC & Secretary
GrantOrdinary shares 5,834 $0.00 $0.00
Disclosure

SEC source: 0001563411-26-000127 · wk-form4_1773669774.xml · nonDerivative · entry 1

Walters Stephen Charles · CIK 0002096129 · SVP GC & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,068

Read SEC document
March 12, 2026 Filed Mar 16, 2026 13:49 UTC GrantOrdinary shares 625 $0.00 $0.00
Disclosure

SEC source: 0001563411-26-000125 · wk-form4_1773668966.xml · nonDerivative · entry 1

Weiler Wiebke · CIK 0002096099 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 625

F1 · shares: Represents the grant of restricted stock units of Constellium SE, which vest in full on March 12, 2029, subject to the Reporting Person's continued employment.

Read SEC document
March 12, 2026 Filed Mar 16, 2026 13:48 UTC
Brun NicolasSVP PA, Comm & Sust
GrantOrdinary shares 4,376 $0.00 $0.00
Disclosure

SEC source: 0001563411-26-000123 · wk-form4_1773668914.xml · nonDerivative · entry 1

Brun Nicolas · CIK 0002093242 · SVP PA, Comm & Sust

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 131,552

F1 · shares: Represents the grant of restricted stock units of Constellium SE, which vest in full on March 12, 2029, subject to the Reporting Person's continued employment.

Read SEC document
March 12, 2026 Filed Mar 16, 2026 13:47 UTC GrantOrdinary shares 10,210 $0.00 $0.00
Disclosure

SEC source: 0001563411-26-000121 · wk-form4_1773668856.xml · nonDerivative · entry 1

Jurkovic Philip Ryan · CIK 0002092842 · SVP & CHRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 220,933

F1 · shares: Represents the grant of restricted stock units of Constellium SE, which vest in full on March 12, 2029, subject to the Reporting Person's continued employment.

Read SEC document
March 12, 2026 Filed Mar 16, 2026 13:46 UTC
Piquier LudovicSVP Manuf Excellence & CTO
GrantOrdinary shares 5,469 $0.00 $0.00
Disclosure

SEC source: 0001563411-26-000119 · wk-form4_1773668799.xml · nonDerivative · entry 1

Piquier Ludovic · CIK 0002095117 · SVP Manuf Excellence & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 242,713

F1 · shares: Represents the grant of restricted stock units of Constellium SE, which vest in full on March 12, 2029, subject to the Reporting Person's continued employment.

Read SEC document
March 12, 2026 Filed Mar 16, 2026 13:45 UTC GrantOrdinary shares 3,938 $0.00 $0.00
Disclosure

SEC source: 0001563411-26-000117 · wk-form4_1773668734.xml · nonDerivative · entry 1

Becker Marcus · CIK 0002092960 · SVP CPO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,175

F1 · shares: Represents the grant of restricted stock units of Constellium SE, which vest in full on March 12, 2029, subject to the Reporting Person's continued employment.

Read SEC document
March 12, 2026 Filed Mar 16, 2026 13:44 UTC
Joerg IngridDirector · CEO
GrantOrdinary shares 31,358 $0.00 $0.00
Disclosure

SEC source: 0001563411-26-000115 · wk-form4_1773668676.xml · nonDerivative · entry 1

Joerg Ingrid · CIK 0002092741 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 409,448

F1 · shares: Represents the grant of restricted stock units of Constellium SE, which vest in full on March 12, 2029, subject to the Reporting Person's continued employment.

Read SEC document
March 12, 2026 Filed Mar 16, 2026 13:43 UTC
Perkins Matthew B.President, P&ARP
GrantOrdinary shares 10,210 $0.00 $0.00
Disclosure

SEC source: 0001563411-26-000113 · wk-form4_1773668604.xml · nonDerivative · entry 1

Perkins Matthew B. · CIK 0002092957 · President, P&ARP

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,212

F1 · shares: Represents the grant of restricted stock units of Constellium SE, which vest in full on March 12, 2029, subject to the Reporting Person's continued employment.

Read SEC document
March 12, 2026 Filed Mar 16, 2026 13:41 UTC
Schild NiklausSVP CIO & CDO
GrantOrdinary shares 3,355 $0.00 $0.00
Disclosure

SEC source: 0001563411-26-000111 · wk-form4_1773668476.xml · nonDerivative · entry 1

Schild Niklaus · CIK 0002093309 · SVP CIO & CDO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,703

F1 · shares: Represents the grant of restricted stock units of Constellium SE, which vest in full on March 12, 2029, subject to the Reporting Person's continued employment.

Read SEC document
March 12, 2026 Filed Mar 16, 2026 13:39 UTC
Hoffmann PhilippePresident, A&T
GrantOrdinary shares 12,033 $0.00 $0.00
Disclosure

SEC source: 0001563411-26-000109 · wk-form4_1773668386.xml · nonDerivative · entry 1

Hoffmann Philippe · CIK 0002093449 · President, A&T

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 194,153

F1 · shares: Represents the grant of restricted stock units of Constellium SE, which vest in full on March 12, 2029, subject to the Reporting Person's continued employment.

Read SEC document
March 12, 2026 Filed Mar 16, 2026 13:38 UTC
Corre StephanePresident, AS&I
GrantOrdinary shares 7,293 $0.00 $0.00
Disclosure

SEC source: 0001563411-26-000107 · wk-form4_1773668317.xml · nonDerivative · entry 1

Corre Stephane · CIK 0002098782 · President, AS&I

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 72,313

F1 · shares: Represents the grant of restricted stock units of Constellium SE, which vest in full on March 12, 2029, subject to the Reporting Person's continued employment.

Read SEC document
March 12, 2026 Filed Mar 16, 2026 13:37 UTC
Guo Jack Q.EVP & CFO
GrantOrdinary shares 19,690 $0.00 $0.00
Disclosure

SEC source: 0001563411-26-000105 · wk-form4_1773668246.xml · nonDerivative · entry 1

Guo Jack Q. · CIK 0002095182 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 210,569

F1 · shares: Represents the grant of restricted stock units of Constellium SE, which vest in full on March 12, 2029, subject to the Reporting Person's continued employment.

Read SEC document
March 10, 2026 Filed Mar 11, 2026 10:48 UTC
Hoffmann PhilippePresident, A&T
SaleOrdinary shares 4,728 $25.87 $122,313.36
Disclosure

SEC source: 0001563411-26-000085 · wk-form4_1773226123.xml · nonDerivative · entry 2

Hoffmann Philippe · CIK 0002093449 · President, A&T

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 182,120

F2 · kind: The Reporting Person sold 4,728 ordinary shares of the Issuer upon the vesting of restricted stock unit and performance stock unit awards previously granted on March 9, 2023, solely to satisfy tax withholding obligations incurred upon vesting.

Read SEC document
March 10, 2026 Filed Mar 11, 2026 10:44 UTC SaleOrdinary shares 1,113 $25.87 $28,793.31
Disclosure

SEC source: 0001563411-26-000083 · wk-form4_1773225843.xml · nonDerivative · entry 2

Becker Marcus · CIK 0002092960 · SVP CPO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,237

F2 · kind: The Reporting Person sold 1,113 ordinary shares of the Issuer upon the vesting of restricted stock unit and performance stock unit awards previously granted on March 9, 2023, solely to satisfy tax withholding obligations incurred upon vesting.

Read SEC document
March 10, 2026 Filed Mar 11, 2026 10:34 UTC
Joerg IngridDirector · CEO
SaleOrdinary shares 4,614 $25.87 $119,364.18
Disclosure

SEC source: 0002092741-26-000004 · wk-form4_1773225294.xml · nonDerivative · entry 2

Joerg Ingrid · CIK 0002092741 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 378,090

F2 · kind: The Reporting Person sold 4,614 ordinary shares of the Issuer upon the vesting of restricted stock unit and performance stock unit awards previously granted on March 9, 2023, solely to satisfy tax withholding obligations incurred upon vesting.

Read SEC document
March 10, 2026 Filed Mar 11, 2026 10:33 UTC
Guo Jack Q.EVP & CFO
SaleOrdinary shares 41,717 $25.87 $1,079,218.79
Disclosure

SEC source: 0001563411-26-000081 · wk-form4_1773225198.xml · nonDerivative · entry 2

Guo Jack Q. · CIK 0002095182 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 190,879

F2 · kind: The Reporting Person sold 41,717 ordinary shares of the Issuer upon the vesting of restricted stock unit and performance stock unit awards previously granted on March 9, 2023, solely to satisfy tax withholding obligations incurred upon vesting.

Read SEC document
March 10, 2026 Filed Mar 11, 2026 10:31 UTC SaleOrdinary shares 29,900 $25.87 $773,513.00
Disclosure

SEC source: 0001563411-26-000079 · wk-form4_1773225082.xml · nonDerivative · entry 2

Jurkovic Philip Ryan · CIK 0002092842 · SVP & CHRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 210,723

F2 · kind: The Reporting Person sold 29,900 ordinary shares of the Issuer upon the vesting of restricted stock unit and performance stock unit awards previously granted on March 9, 2023, solely to satisfy tax withholding obligations incurred upon vesting.

Read SEC document
March 10, 2026 Filed Mar 12, 2026 16:03 UTC
Corre StephanePresident, AS&I
SaleOrdinary shares 1,500 $25.89 $38,835.00
Disclosure

SEC source: 0001563411-26-000089 · wk-form4_1773331421.xml · nonDerivative · entry 1

Corre Stephane · CIK 0002098782 · President, AS&I

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 65,020

F1 · shares: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.88 to $25.89, inclusive. The reporting person undertakes to provide to Constellium SE, any security holder of Constellium SE, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.

Read SEC document
March 09, 2026 Filed Mar 11, 2026 10:59 UTC
Corre StephanePresident, AS&I
PurchaseOrdinary shares 8,026 $0.00 $0.00
Disclosure

SEC source: 0002098782-26-000004 · wk-form4_1773226754.xml · nonDerivative · entry 1

Corre Stephane · CIK 0002098782 · President, AS&I

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 66,520

F1 · shares: 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.

Read SEC document
March 09, 2026 Filed Mar 11, 2026 10:48 UTC
Hoffmann PhilippePresident, A&T
PurchaseOrdinary shares 71,132 $0.00 $0.00
Disclosure

SEC source: 0001563411-26-000085 · wk-form4_1773226123.xml · nonDerivative · entry 1

Hoffmann Philippe · CIK 0002093449 · President, A&T

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 186,848

F1 · shares: 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.

Read SEC document
March 09, 2026 Filed Mar 11, 2026 10:44 UTC PurchaseOrdinary shares 14,592 $0.00 $0.00
Disclosure

SEC source: 0001563411-26-000083 · wk-form4_1773225843.xml · nonDerivative · entry 1

Becker Marcus · CIK 0002092960 · SVP CPO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,350

F1 · shares: 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.

Read SEC document
March 09, 2026 Filed Mar 11, 2026 10:34 UTC
Joerg IngridDirector · CEO
GrantOrdinary shares 71,132 $0.00 $0.00
Disclosure

SEC source: 0002092741-26-000004 · wk-form4_1773225294.xml · nonDerivative · entry 1

Joerg Ingrid · CIK 0002092741 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 382,704

F1 · shares: 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.

Read SEC document
March 09, 2026 Filed Mar 11, 2026 10:33 UTC
Guo Jack Q.EVP & CFO
GrantOrdinary shares 75,874 $0.00 $0.00
Disclosure

SEC source: 0001563411-26-000081 · wk-form4_1773225198.xml · nonDerivative · entry 1

Guo Jack Q. · CIK 0002095182 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 232,596

F1 · shares: 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.

Read SEC document
March 09, 2026 Filed Mar 11, 2026 10:31 UTC GrantOrdinary shares 59,276 $0.00 $0.00
Disclosure

SEC source: 0001563411-26-000079 · wk-form4_1773225082.xml · nonDerivative · entry 1

Jurkovic Philip Ryan · CIK 0002092842 · SVP & CHRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 240,623

F1 · shares: 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.

Read SEC document
March 09, 2026 Filed Mar 11, 2026 10:30 UTC
Piquier LudovicSVP Manuf Excellence & CTO
GrantOrdinary shares 30,350 $0.00 $0.00
Disclosure

SEC source: 0001563411-26-000077 · wk-form4_1773225005.xml · nonDerivative · entry 1

Piquier Ludovic · CIK 0002095117 · SVP Manuf Excellence & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 237,244

F1 · shares: 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.

Read SEC document
March 09, 2026 Filed Mar 11, 2026 10:29 UTC
Schild NiklausSVP CIO & CDO
GrantOrdinary shares 5,106 $0.00 $0.00
Disclosure

SEC source: 0001563411-26-000075 · wk-form4_1773224939.xml · nonDerivative · entry 1

Schild Niklaus · CIK 0002093309 · SVP CIO & CDO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,348

F1 · shares: 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.

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March 09, 2026 Filed Mar 11, 2026 10:27 UTC
Brun NicolasSVP PA, Comm & Sust
GrantOrdinary shares 23,710 $0.00 $0.00
Disclosure

SEC source: 0002093242-26-000002 · wk-form4_1773224859.xml · nonDerivative · entry 2

Brun Nicolas · CIK 0002093242 · SVP PA, Comm & Sust

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 127,176

F2 · shares: Represents earned non-derivative performance stock units of the Issuer granted on March 9, 2023 that contained performance-vesting requirements, which vested on March 9, 2026.

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March 09, 2026 Filed Mar 11, 2026 10:27 UTC
Brun NicolasSVP PA, Comm & Sust
SaleOrdinary shares 17,701 $24.67 $436,683.67
Disclosure

SEC source: 0002093242-26-000002 · wk-form4_1773224859.xml · nonDerivative · entry 1

Brun Nicolas · CIK 0002093242 · SVP PA, Comm & Sust

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 103,466

F1 · shares: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $24.63 to $24.72, inclusive. The reporting person undertakes to provide to Constellium SE, any security holder of Constellium SE, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.

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March 04, 2026 Filed Mar 6, 2026 13:33 UTC
Hoffmann PhilippePresident, A&T
SaleOrdinary shares 30,000 $27.14 $814,200.00
Disclosure

SEC source: 0001563411-26-000067 · wk-form4_1772803976.xml · nonDerivative · entry 2

Hoffmann Philippe · CIK 0002093449 · President, A&T

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 55,425

F2 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.10 to $27.23, inclusive. The reporting person undertakes to provide to Constellium SE, any security holder of Constellium SE, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.

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March 04, 2026 Filed Mar 6, 2026 13:33 UTC
Hoffmann PhilippePresident, A&T
SaleOrdinary shares 50,000 $26.03 $1,301,500.00
Disclosure

SEC source: 0001563411-26-000067 · wk-form4_1772803976.xml · nonDerivative · entry 1

Hoffmann Philippe · CIK 0002093449 · President, A&T

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 85,425

F1 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.95 to $26.25, inclusive. The reporting person undertakes to provide to Constellium SE, any security holder of Constellium SE, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.

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March 02, 2026 Filed Mar 17, 2026 19:37 UTC PurchaseOrdinary shares 1,665 $24.77 $41,242.05
Disclosure

SEC source: 0002092745-26-000002 · wk-form4_1773776244.xml · nonDerivative · entry 1

Deslarzes Jean-Christophe · CIK 0002092745 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,700

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February 27, 2026 Filed Mar 3, 2026 14:13 UTC
Corre StephanePresident, AS&I
SaleOrdinary shares 3,000 $24.69 $74,070.00
Disclosure

SEC source: 0001563411-26-000065 · wk-form4_1772547215.xml · nonDerivative · entry 1

Corre Stephane · CIK 0002098782 · President, AS&I

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 44,444

F1 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $24.67 to $24.72, inclusive. The reporting person undertakes to provide to Constellium SE, any security holder of Constellium SE, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.

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February 26, 2026 Filed Feb 27, 2026 14:12 UTC SaleOrdinary shares 10,000 $25.77 $257,700.00
Disclosure

SEC source: 0001563411-26-000063 · wk-form4_1772201547.xml · nonDerivative · entry 1

Boccon-Gibod Isabelle · CIK 0002092744 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,000

F1 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.77, to $25.77, inclusive. The reporting person undertakes to provide to Constellium SE, any security holder of Constellium SE, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.

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February 25, 2026 Filed Feb 27, 2026 14:08 UTC
Corre StephanePresident, AS&I
SaleOrdinary shares 3,200 $25.71 $82,261.76
Disclosure

SEC source: 0001563411-26-000061 · wk-form4_1772201333.xml · nonDerivative · entry 1

Corre Stephane · CIK 0002098782 · President, AS&I

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,444

F1 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.653 to $25.710, inclusive. The reporting person undertakes to provide to Constellium SE, any security holder of Constellium SE, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.