Dassault Systemes SE (DSY)

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Recent insider activity shows a net buy, with a significant purchase by Eric Trappier, an administrator, on June 2nd. Prior to this, Charles Edelstenne, Honorary President, made multiple substantial buys in November 2025. Rouven Bergmann, Deputy General Director Finance, engaged in both buying and selling transactions in December 2025.

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Ticker: DSY Exchange: PAR

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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings

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Trades

ERIC TRAPPIER

Administrateur

1 purchase — total 100,000 EUR

Buy 2 Jun 2026

Value €1,087,599.05 | Price 75.17 | Shares 91,365

Nathalie ROUVET-LAZARE

Membre du Conseil d'administration / administrateur Indépendant

1 purchase — total 9,213 EUR

Buy 13 Feb 2026

Value €1,595,958.94 | Price 56.69 | Shares 63,894

Donatella Sciuto

Board member

1 purchase — total 9,015 EUR

Buy 12 Feb 2026

Value €9,015.00 | Price 18.03 | Shares 500

ROUVEN BERGMANN

Deputy General Director Finance

1 purchase — total 746,585 EUR

Buy 10 Dec 2025

Value €746,585.15 | Price 23.07 | Shares 32,355

ROUVEN BERGMANN

Deputy General Director Finance

2 sales — total 1,211,897 EUR

Sale 5 Dec 2025

Value €706,938.73 | Price 23.74 | Shares 29,777

Sale 5 Dec 2025

Value €504,958.42 | Price 23.81 | Shares 21,204

CHARLES EDELSTENNE

PRESIDENT D'HONNEUR DE DASSAULT SYSTEMES

2 purchases — total 347,206 EUR

Buy 7 Nov 2025

Value €191,503.38 | Price 23.15 | Shares 8,274

Buy 7 Nov 2025

Value €155,702.86 | Price 23.15 | Shares 6,726

CHARLES EDELSTENNE

PRESIDENT D'HONNEUR DE DASSAULT SYSTEMES

2 purchases — total 353,544 EUR

Buy 6 Nov 2025

Value €245,694.08 | Price 23.57 | Shares 10,423

Buy 6 Nov 2025

Value €107,850.14 | Price 23.56 | Shares 4,577

CHARLES EDELSTENNE

PRESIDENT D'HONNEUR DE DASSAULT SYSTEMES

2 purchases — total 359,782 EUR

Buy 4 Nov 2025

Value €296,129.92 | Price 23.99 | Shares 12,346

Buy 4 Nov 2025

Value €63,652.21 | Price 23.98 | Shares 2,654

LAURENCE DAURES

Administratrice indépendante et Administratrice référente

1 purchase — total 12,142 EUR

Buy 31 Oct 2025

Value €12,142.35 | Price 24.53 | Shares 495

XAVIER CAUCHOIS

administrateur

1 purchase — total 36,975 EUR

Buy 30 Oct 2025

Value €36,975.00 | Price 24.65 | Shares 1,500

CHARLES EDELSTENNE

PRESIDENT D'HONNEUR DE DASSAULT SYSTEMES

2 purchases — total 739,840 EUR

Buy 29 Oct 2025

Value €469,591.62 | Price 24.67 | Shares 19,034

Buy 29 Oct 2025

Value €270,248.59 | Price 24.64 | Shares 10,966

CHARLES EDELSTENNE

PRESIDENT D'HONNEUR DE DASSAULT SYSTEMES

2 purchases — total 1,971,155 EUR

Buy 24 Oct 2025

Value €1,089,228.78 | Price 26.27 | Shares 41,457

Buy 24 Oct 2025

Value €881,925.97 | Price 26.29 | Shares 33,543

GROUPE INDUSTRIEL MARCEL DASSAULT SAS

Administrateur

1 sale — total 189,312 EUR

Sale 4 Sep 2025

Value €189,312.00 | Price 1.63 | Shares 116,000

GROUPE INDUSTRIEL MARCEL DASSAULT SAS

Administrateur

1 sale — total 81,084 EUR

Sale 3 Sep 2025

Value €81,084.00 | Price 1.40 | Shares 58,000

Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other

Notification date	Transaction date	B/S Transaction type	Insider and/or position	Nb. shares Price Value	Number of shares	Price	Value
2026-06-04	2026-06-02	B Purchase	3.4 ERIC TRAPPIER Administrateur Director	91,365 75.17 €1,087,599	91,365	75.17	€1,087,599
2026-02-13	2026-02-13	B Purchase	1.3 Nathalie ROUVET-LAZARE Membre du Conseil d'administration / administrateur Indépendant Non-Executive Director	63,894 56.69 €1,595,959	63,894	56.69	€1,595,959
2026-02-18	2026-02-12	B Purchase	Donatella Sciuto Board member	64,155 463.20 €1,950,536	64,155	463.20	€1,950,536
2025-12-11	2025-12-10	B Purchase	2.8 ROUVEN BERGMANN Deputy General Director Finance Director	32,355 23.07 €746,585	32,355	23.07	€746,585
2025-12-09	2025-12-05	S Sale	2.8 ROUVEN BERGMANN Deputy General Director Finance Director	29,777 23.74 €706,939	29,777	23.74	€706,939
2025-12-09	2025-12-05	S Sale	2.8 ROUVEN BERGMANN Deputy General Director Finance Director	21,204 23.81 €504,958	21,204	23.81	€504,958
2025-11-13	2025-11-07	B Purchase	3.1 CHARLES EDELSTENNE PRESIDENT D'HONNEUR DE DASSAULT SYSTEMES Director	8,274 23.15 €191,503	8,274	23.15	€191,503
2025-11-13	2025-11-07	B Purchase	3.1 CHARLES EDELSTENNE PRESIDENT D'HONNEUR DE DASSAULT SYSTEMES Director	6,726 23.15 €155,703	6,726	23.15	€155,703
2025-11-13	2025-11-06	B Purchase	3.1 CHARLES EDELSTENNE PRESIDENT D'HONNEUR DE DASSAULT SYSTEMES Director	10,423 23.57 €245,694	10,423	23.57	€245,694
2025-11-13	2025-11-06	B Purchase	3.1 CHARLES EDELSTENNE PRESIDENT D'HONNEUR DE DASSAULT SYSTEMES Director	4,577 23.56 €107,850	4,577	23.56	€107,850
2025-11-07	2025-11-04	B Purchase	3.1 CHARLES EDELSTENNE PRESIDENT D'HONNEUR DE DASSAULT SYSTEMES Director	12,346 23.99 €296,130	12,346	23.99	€296,130
2025-11-07	2025-11-04	B Purchase	3.1 CHARLES EDELSTENNE PRESIDENT D'HONNEUR DE DASSAULT SYSTEMES Director	2,654 23.98 €63,652	2,654	23.98	€63,652
2025-11-04	2025-10-31	B Purchase	2.9 LAURENCE DAURES Administratrice indépendante et Administratrice référente Non-Executive Director	495 24.53 €12,142	495	24.53	€12,142
2025-11-03	2025-10-30	B Purchase	2.2 XAVIER CAUCHOIS administrateur Director	1,500 24.65 €36,975	1,500	24.65	€36,975
2025-11-04	2025-10-29	B Purchase	3.1 CHARLES EDELSTENNE PRESIDENT D'HONNEUR DE DASSAULT SYSTEMES Director	19,034 24.67 €469,592	19,034	24.67	€469,592
2025-11-04	2025-10-29	B Purchase	3.1 CHARLES EDELSTENNE PRESIDENT D'HONNEUR DE DASSAULT SYSTEMES Director	10,966 24.64 €270,249	10,966	24.64	€270,249
2025-10-30	2025-10-24	B Purchase	3.1 CHARLES EDELSTENNE PRESIDENT D'HONNEUR DE DASSAULT SYSTEMES Director	41,457 26.27 €1,089,229	41,457	26.27	€1,089,229
2025-10-30	2025-10-24	B Purchase	3.1 CHARLES EDELSTENNE PRESIDENT D'HONNEUR DE DASSAULT SYSTEMES Director	33,543 26.29 €881,926	33,543	26.29	€881,926
2025-09-05	2025-09-04	S Sale	GROUPE INDUSTRIEL MARCEL DASSAULT SAS Administrateur Director	116,000 1.63 €189,312	116,000	1.63	€189,312
2025-09-04	2025-09-03	S Sale	GROUPE INDUSTRIEL MARCEL DASSAULT SAS Administrateur Director	58,000 1.40 €81,084	58,000	1.40	€81,084