France Construction & Engineering

Assystem SA (ASY)

Track

The most recent insider trading activity at Assystem SA occurred on December 30, 2025. This period saw significant buying activity from executives, including Christian Jeanneau and Dominique Louis, who made multiple purchases. A notable sell transaction was also recorded from Ashish Tandon on October 29, 2025. Overall, the recent transactions indicate notable insider engagement.
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Ticker: ASY Exchange: PAR
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
Christian Jeanneau
Vice Président Exécutif
1 purchase — total 1,066 EUR
Buy 30 Dec 2025
Value €2,569,995.14 | Price 355.69 | Shares 15,324
Buy 30 Dec 2025
Value €4,151,444.08 | Price 96.20 | Shares 28,335
Through CAROLE DEROUSSIN, a closely affiliated person
Sale 29 Oct 2025
Value €70,256.60 | Price 42.89 | Shares 1,638
Buy 11 Jun 2025
Value €20,000.00 | Price 40.00 | Shares 500
Through HDL DEVELOPMENT Société par actions simplifiée, a closely affiliated person
Buy 6 Jun 2025
Value €5,040.00 | Price 40.00 | Shares 126
Through HDL DEVELOPMENT Société par actions simplifiée, a closely affiliated person
Buy 27 May 2025
Value €4,840.00 | Price 40.00 | Shares 121
Through HDL DEVELOPMENT Société par actions simplifiée, a closely affiliated person
Buy 20 May 2025
Value €15,630.26 | Price 39.98 | Shares 391
Through HDL DEVELOPMENT Société par actions simplifiée, a closely affiliated person
Buy 15 May 2025
Value €79,853.00 | Price 39.93 | Shares 2,000
Through HDL DEVELOPMENT Société par actions simplifiée, a closely affiliated person
Buy 14 May 2025
Value €76,899.28 | Price 39.72 | Shares 1,936
Through HDL DEVELOPMENT Société par actions simplifiée, a closely affiliated person
Buy 13 May 2025
Value €29,930.86 | Price 39.96 | Shares 749
Through HDL DEVELOPMENT Société par actions simplifiée, a closely affiliated person
Buy 12 May 2025
Value €60,229.47 | Price 39.73 | Shares 1,516
Through HDL DEVELOPMENT Société par actions simplifiée, a closely affiliated person
Buy 8 May 2025
Value €13,914.29 | Price 39.98 | Shares 348
Through HDL DEVELOPMENT Société par actions simplifiée, a closely affiliated person
Buy 7 May 2025
Value €72,829.54 | Price 39.91 | Shares 1,825
Through HDL DEVELOPMENT Société par actions simplifiée, a closely affiliated person
Buy 6 May 2025
Value €45,641.29 | Price 39.65 | Shares 1,151
Through HDL DEVELOPMENT Société par actions simplifiée, a closely affiliated person
Buy 5 May 2025
Value €78,232.40 | Price 39.12 | Shares 2,000
Through HDL DEVELOPMENT Société par actions simplifiée, a closely affiliated person
Buy 2 May 2025
Value €76,781.20 | Price 38.39 | Shares 2,000
Through HDL DEVELOPMENT Société par actions simplifiée, a closely affiliated person
Buy 2 May 2025
Value €83,536.86 | Price 37.97 | Shares 2,200
Through HDL DEVELOPMENT Société par actions simplifiée, a closely affiliated person
Buy 29 Apr 2025
Value €82,445.66 | Price 37.48 | Shares 2,200
Through HDL DEVELOPMENT Société par actions simplifiée, a closely affiliated person
Buy 28 Apr 2025
Value €84,431.85 | Price 36.71 | Shares 2,300
Through HDL DEVELOPMENT Société par actions simplifiée, a closely affiliated person
Buy 25 Apr 2025
Value €77,099.44 | Price 35.05 | Shares 2,200
Through HDL DEVELOPMENT Société par actions simplifiée, a closely affiliated person
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 Details
2025-12-31 2025-12-30 B Purchase
2.9
Christian Jeanneau

Vice Président Exécutif

Executive Director
15,324
355.69
€2,569,995 		15,324 355.69 €2,569,995
2025-12-31 2025-12-30 B Purchase
2.9
CHRISTIAN JEANNEAU

VICE PRESIDENT EXECUTIF

Through CAROLE DEROUSSIN, a closely affiliated person Executive Director
28,335
96.20
€4,151,444 		28,335 96.20 €4,151,444
2025-11-04 2025-10-29 S Sale
1.1
Ashish TANDON

Managing Director of Assystem in India

Director
28,118
189.01
€4,705,665 		28,118 189.01 €4,705,665
2025-06-17 2025-06-11 B Purchase
3.6
Dominique LOUIS

Président-directeur général

Through HDL DEVELOPMENT Société par actions simplifiée, a closely affiliated person Executive Director
500
40.00
€20,000 		500 40.00 €20,000
2025-06-11 2025-06-06 B Purchase
3.6
Dominique LOUIS

Président-directeur général

Through HDL DEVELOPMENT Société par actions simplifiée, a closely affiliated person Executive Director
126
40.00
€5,040 		126 40.00 €5,040
2025-06-03 2025-05-27 B Purchase
3.6
Dominique LOUIS

Président-directeur général

Through HDL DEVELOPMENT Société par actions simplifiée, a closely affiliated person Executive Director
121
40.00
€4,840 		121 40.00 €4,840
2025-05-26 2025-05-20 B Purchase
3.6
Dominique LOUIS

Président-directeur général

Through HDL DEVELOPMENT Société par actions simplifiée, a closely affiliated person Executive Director
391
39.98
€15,630 		391 39.98 €15,630
2025-05-21 2025-05-15 B Purchase
3.6
Dominique LOUIS

Président-directeur général

Through HDL DEVELOPMENT Société par actions simplifiée, a closely affiliated person Executive Director
2,000
39.93
€79,853 		2,000 39.93 €79,853
2025-05-20 2025-05-14 B Purchase
3.6
Dominique LOUIS

Président-directeur général

Through HDL DEVELOPMENT Société par actions simplifiée, a closely affiliated person Executive Director
1,936
39.72
€76,899 		1,936 39.72 €76,899
2025-05-19 2025-05-13 B Purchase
3.6
Dominique LOUIS

Président-directeur général

Through HDL DEVELOPMENT Société par actions simplifiée, a closely affiliated person Executive Director
749
39.96
€29,931 		749 39.96 €29,931
2025-05-16 2025-05-12 B Purchase
3.6
Dominique LOUIS

Président-directeur général

Through HDL DEVELOPMENT Société par actions simplifiée, a closely affiliated person Executive Director
1,516
39.73
€60,229 		1,516 39.73 €60,229
2025-05-14 2025-05-08 B Purchase
3.6
Dominique LOUIS

Président-directeur général

Through HDL DEVELOPMENT Société par actions simplifiée, a closely affiliated person Executive Director
348
39.98
€13,914 		348 39.98 €13,914
2025-05-14 2025-05-07 B Purchase
3.6
Dominique LOUIS

Président-directeur général

Through HDL DEVELOPMENT Société par actions simplifiée, a closely affiliated person Executive Director
1,825
39.91
€72,830 		1,825 39.91 €72,830
2025-05-13 2025-05-06 B Purchase
3.6
Dominique LOUIS

Président-directeur général

Through HDL DEVELOPMENT Société par actions simplifiée, a closely affiliated person Executive Director
1,151
39.65
€45,641 		1,151 39.65 €45,641
2025-05-14 2025-05-05 B Purchase
3.6
Dominique LOUIS

Président-directeur général

Through HDL DEVELOPMENT Société par actions simplifiée, a closely affiliated person Executive Director
2,000
39.12
€78,232 		2,000 39.12 €78,232
2025-05-14 2025-05-02 B Purchase
3.6
Dominique LOUIS

Président-directeur général

Through HDL DEVELOPMENT Société par actions simplifiée, a closely affiliated person Executive Director
2,000
38.39
€76,781 		2,000 38.39 €76,781
2025-05-07 2025-05-02 B Purchase
3.6
Dominique LOUIS

Président-directeur général

Through HDL DEVELOPMENT Société par actions simplifiée, a closely affiliated person Executive Director
2,200
37.97
€83,537 		2,200 37.97 €83,537
2025-05-06 2025-04-29 B Purchase
3.6
Dominique LOUIS

Président-directeur général

Through HDL DEVELOPMENT Société par actions simplifiée, a closely affiliated person Executive Director
2,200
37.48
€82,446 		2,200 37.48 €82,446
2025-05-05 2025-04-28 B Purchase
3.6
Dominique LOUIS

Président-directeur général

Through HDL DEVELOPMENT Société par actions simplifiée, a closely affiliated person Executive Director
2,300
36.71
€84,432 		2,300 36.71 €84,432
2025-05-19 2025-04-25 B Purchase
3.6
Dominique LOUIS

Président-directeur général

Through HDL DEVELOPMENT Société par actions simplifiée, a closely affiliated person Executive Director
2,200
35.05
€77,099 		2,200 35.05 €77,099
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