REGULATED PRESS RELEASE

from ALTEN (EPA:ATE)

Half-year liquidity contract statement of ALTEN SA as at 30 June 2026

PRESS RELEASE

On 08/07/2026, 17:45

Half-year liquidity contract statement for ALTEN

Under the liquidity contract entered into between ALTEN and Kepler Cheuvreux, the following resources appeared on the liquidity account on June 30th 2026:

  • 13,817 shares
  • € 466,206.69
  • Number of executions on buy side on semester: 2,594
  • Number of executions on sell side on semester: 2,482
  • Traded volume on buy side on semester: 97,511 shares for € 6,100,175.74
  • Traded volume on sell side on semester: 95,675 shares for € 6,024,859.39

As a reminder :

  • the following resources appeared on the last half year statement on 31 December 2025 on the liquidity account:
    • 11,981 shares
    • € 539,001.32
    • Number of executions on buy side on semester: 2,350
    • Number of executions on sell side on semester: 2,400
    • Traded volume on buy side on semester: 80,466 shares for € 5,638,345.52
    • Traded volume on sell side on semester: 81,294 shares for € 5,733,091.83
  • the following resources appeared on the liquidity account when the activity started:
    • 9,848 shares
    • € 40,881.00

The implementation of this report is carried out in accordance with AMF Decision N°2021-01 of June 22nd 2021 renewing the implementation of liquidity contracts for shares as an accepted market practice.

About ALTEN SA

For all information: www.alten.com/investors
Contact for journalists: alten@hopcotch.fr

As the European leader in Engineering and Technology Consulting (ETC), ALTEN carries out design and research projects for the Technical and IT/IS Departments of major industrial, telecom and tertiary clients. The ALTEN share is listed on compartment A of the Euronext Paris market (ISIN FR0000071946) and is part of SBF 120, the IT CAC 50 index, and MIDCAP 100, and is eligible for the Deferred Settlement Service (DSS).

Buy SideSell Side
Number of executionsNumber of sharesTraded volume in EURNumber of executionsNumber of sharesTraded volume in EUR
Total2,59497,5116,100,175.742,48295,6756,024,859.39
01/02/20261140029,012.001765047,502.00
01/05/2026601,600115,280.00431,743126,262.92
01/06/20261770050,358.001145732,981.69
01/07/2026---2575055,095.00
01/08/20263585062,951.001775055,725.00
01/09/2026914110,494.631755041,195.00
01/12/2026291,25095,100.00481,485113,721.30
01/13/20261955042,020.00311,15088,561.50
01/14/2026251,15088,941.001880062,184.00
01/15/20261755041,558.00931523,899.05
01/16/20262365049,153.001134025,836.60
01/19/20261860944,798.041440029,604.00
01/20/20262185061,778.001455040,210.50
01/21/20262365046,650.501250036,050.00
01/22/20261556441,307.362280058,856.00
01/23/20261128620,792.20625018,290.00
01/26/2026920014,610.002590066,438.00
01/27/20261770051,590.001035026,299.00
01/28/20262490063,729.00261,00071,710.00
01/29/20261880057,152.001240028,812.00
01/30/20262290071,271.001024,195337,697.50
02/02/2026261,00082,630.00261,00082,990.00
02/03/2026692,550201,628.50619315,849.16
02/04/2026281,25092,125.00416312,088.08
02/05/20262890065,277.001665047,489.00
02/06/20262595067,298.001665046,234.50
02/09/20261355039,391.002670050,400.00
02/10/20261350035,850.001770050,428.00
02/11/2026371,491103,296.48---
02/12/2026341,40091,938.001045030,028.50
02/13/2026311,20076,560.00201,00063,910.00
02/16/2026251,05066,087.001435022,736.00
02/17/20261375044,955.001365039,130.00
02/18/20261155032,455.501870041,615.00
02/19/2026271,05063,304.50251,05063,346.50
02/20/2026221,00060,110.002080048,264.00
02/23/2026391,60093,904.00281,15067,999.50
02/24/20261456232,219.462070040,537.00
02/25/2026622,838163,241.76763,000174,060.00
02/26/20262691555,723.50562,000123,560.00
02/27/2026371,674104,139.54571,850115,699.00
03/02/2026612,061126,091.98461,650101,475.00
03/03/20262875044,572.501555032,846.00
03/04/20261758234,774.502285051,153.00
03/05/20262886852,175.483175045,397.50
03/06/2026231,10066,726.00481,25076,075.00
03/09/20263380047,424.00520011,968.00
03/10/20261760035,538.001850029,920.00
03/11/2026351,25073,200.00291,30076,375.00
03/12/2026251,00058,440.001990052,857.00
03/13/20262595054,758.001555031,795.50
03/16/2026411,05059,209.502590050,877.00
03/17/20261660634,208.701985048,101.50
03/18/2026301,10062,777.003395054,473.00
03/19/20262666236,754.24945025,092.00
03/20/2026461,70292,248.40271,25068,087.50
03/23/2026461,80096,174.00492,150115,541.00
03/24/20261670037,065.001035018,641.00
03/25/20262585045,143.50271,15061,237.50
03/26/20261775039,187.501355028,858.50
03/27/2026221,05054,684.00261,10057,431.00
03/30/20261460030,768.001045023,148.00
03/31/2026520010,446.001139520,698.00
04/01/20262190047,880.00381,10559,327.45
04/02/20261650026,250.001350126,467.83
04/07/20262370137,307.222664934,818.85
04/08/20261045024,570.003295052,259.50
04/09/20262165534,590.5531005,330.00
04/10/2026945023,791.501360032,040.00
04/13/20261349425,821.382080042,184.00
04/14/20261145024,201.001660032,526.00
04/15/20261140021,520.002795051,727.50
04/16/2026---2065037,089.00
04/17/2026---1460035,700.00
04/20/2026391,05061,561.501980047,056.00
04/21/20261040023,816.001665038,896.00
04/22/20261245026,550.00722513,311.00
04/23/20261045026,041.5021005,810.00
04/24/20261355031,152.001352029,655.60
04/27/20261995054,055.00281,05059,797.50
04/28/2026261,05060,427.50351,40080,822.00
04/29/2026321,05060,375.001675043,297.50
04/30/20261360034,020.00835019,929.00
05/04/20261502,865.001155031,729.50
05/05/20261770040,397.001237521,795.00
05/06/2026---391,55094,085.00
05/07/20261875046,635.001770043,631.00
05/08/20261250030,810.001250031,165.00
05/11/2026321,25076,725.00301,30079,911.00
05/12/20262670042,231.001150030,365.00
05/13/2026271,10066,704.002095057,750.50
05/14/2026420012,130.001335021,290.50
05/15/20261555033,214.501360036,618.00
05/18/20261240024,396.001560037,032.00
05/19/202621006,350.001365041,340.00
05/20/20261965040,768.001045028,489.50
05/21/20261465040,657.501255034,573.00
05/22/2026630018,894.002765041,158.00
05/25/202631509,582.002465041,606.50
05/26/20261440025,544.00935022,431.50
05/27/20261360038,412.001560038,580.00
05/28/20262185054,391.50221,05067,420.50
05/29/20261030019,380.001150032,530.00
06/01/2026261,10072,281.00361,650108,883.50
06/02/2026231,10073,260.001675050,317.50
06/03/20262295061,607.50730019,719.00
06/04/20261163.201555035,860.00
06/05/2026281,15075,371.001770046,249.00
06/08/20263393159,341.941675048,075.00
06/09/2026371,21877,659.682195060,828.50
06/10/20261885052,640.501365040,436.50
06/11/2026271,30078,507.0031006,070.00
06/12/2026---735021,231.00
06/15/202621006,210.00321,05065,866.50
06/16/20261235022,036.001360037,986.00
06/17/20261145028,269.00835022,116.50
06/18/2026351,25074,775.001503,130.00
06/19/20262490051,741.001590051,876.00
06/22/2026945025,024.5031508,400.00
06/23/20262390049,122.001480043,696.00
06/24/20261145024,354.00735019,040.00
06/25/20262285045,288.001550026,800.00
06/26/20261470036,918.002181443,133.86
06/29/20261555029,738.501360032,610.00
06/30/2026271,10058,905.002285045,645.00
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