Alten

Capital/Financing Update • Jan 15, 2025

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 December 31st 2024:

• 11,643 shares
• € 466,289.82
• Number of executions on buy side on semester: 2,572
• Number of executions on sell side on semester: 2,713
• Traded volume on buy side on semester: 81,145 shares for € 7,546,468.87
• Traded volume on sell side on semester: 82,558 shares for € 7,767,712.01

As a reminder :

• the following resources appeared on the last half year statement on 30 June 2023 on the liquidity account:

• 13,056 shares
• € 241,329.43
• Number of executions on buy side on semester: 3,748
• Number of executions on sell side on semester: 3,322
• Traded volume on buy side on semester: 110,411 shares for € 14,216,163.95
• Traded volume on sell side on semester: 99,326 shares for € 12,930,152.46
• 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).

Total	2,572	81,145	7,546,468.87	2,713	82,558	7,767,712.01
07/01/2024	22	850	89,981.00	62	2,350	250,439.50
07/02/2024	37	1,400	146,762.00	37	1,230	129,838.80
07/03/2024	2	100	10,510.00	43	1,005	106,519.95
07/04/2024	4	100	10,730.00	39	915	98,206.95
07/05/2024	12	450	48,636.00	39	900	97,515.00
07/08/2024	8	250	27,000.00	25	800	87,920.00
07/09/2024	40	1,471	155,617.09	-	-	-
07/10/2024	6	129	13,342.47	3	150	15,780.00
07/11/2024	4	150	15,790.50	28	800	85,248.00
07/12/2024	25	750	79,815.00	24	1,000	107,490.00
07/15/2024	10	400	43,612.00	23	824	90,368.08
07/16/2024	41	1,330	142,961.70	25	922	99,391.60
07/17/2024	20	600	64,680.00	25	828	89,498.52
07/18/2024	13	500	54,205.00	37	1,026	112,193.10
07/19/2024	97	3,120	324,511.20	-	-	-
07/22/2024	4	195	20,225.40	32	891	92,753.10
07/23/2024	25	805	83,285.30	24	654	68,087.94
07/24/2024	30	1,250	127,212.50	14	450	46,188.00
07/25/2024	41	1,417	140,665.59	22	1,000	99,590.00
07/26/2024	16	500	49,580.00	31	900	90,558.00
07/29/2024	16	650	65,279.50	14	450	45,486.00
07/30/2024	14	587	59,198.95	28	900	91,242.00
07/31/2024	11	300	30,546.00	39	837	85,859.46
08/01/2024	23	913	91,363.91	14	200	20,126.00
08/02/2024	23	750	73,372.50	13	300	29,529.00
08/05/2024	21	600	56,334.00	12	450	42,628.50
08/06/2024	4	100	9,480.00	12	300	28,689.00
08/07/2024	-	-	-	26	900	86,796.00
08/08/2024	8	250	24,060.00	2	50	4,832.50
08/09/2024	9	350	33,729.50	10	400	38,772.00
08/12/2024	15	500	48,255.00	23	544	52,735.36
08/13/2024	11	387	37,237.14	33	1,106	107,005.50
08/14/2024	14	450	43,825.50	28	678	66,640.62
08/15/2024	5	100	9,750.00	31	1,272	125,393.76
08/16/2024	21	350	34,625.50	21	400	39,764.00
08/19/2024	-	-	-	24	700	70,084.00
08/20/2024	23	750	74,865.00	21	303	30,572.70
08/21/2024	3	100	9,910.00	14	600	59,730.00
08/22/2024	15	600	59,724.00	10	250	24,975.00
08/23/2024	10	400	39,652.00	14	650	64,772.50
08/26/2024	10	400	39,820.00	15	402	40,083.42
08/27/2024	16	600	59,988.00	25	649	65,068.74
08/28/2024	14	500	49,865.00	24	700	69,937.00
08/29/2024	7	250	24,955.00	22	700	70,182.00
08/30/2024	31	386	38,789.14	17	596	60,428.44
09/02/2024	15	464	46,850.08	15	515	52,313.70
09/03/2024	67	1,750	173,617.50	2	50	5,080.00
09/04/2024	72	2,100	197,526.00	3	100	9,600.00
09/05/2024	15	550	50,385.50	23	550	50,484.50
09/06/2024	33	1,100	99,935.00	21	850	77,486.00

Total	2,572	81,145	7,546,468.87	2,713	82,558	7,767,712.01
09/09/2024	8	150	13,705.50	26	860	78,844.80
09/10/2024	20	550	51,540.50	41	1,050	98,679.00
09/11/2024	20	750	70,177.50	43	1,250	117,487.50
09/12/2024	32	1,250	121,162.50	71	2,150	209,883.00
09/13/2024	-	-	-	38	1,200	116,952.00
09/16/2024	23	730	71,072.80	10	250	24,447.50
09/17/2024	9	301	29,549.17	28	850	83,759.00
09/18/2024	25	799	77,383.15	6	150	14,569.50
09/19/2024	-	-	-	63	1,550	154,535.00
09/20/2024	113	3,560	344,216.40	57	2,051	202,064.52
09/23/2024	6	200	19,626.00	27	849	83,677.44
09/24/2024	24	900	90,018.00	58	1,400	140,812.00
09/25/2024	31	1,050	103,929.00	24	850	84,362.50
09/26/2024	12	550	55,693.00	53	1,700	172,635.00
09/27/2024	6	250	25,680.00	21	750	77,212.50
09/30/2024	33	1,200	121,572.00	-	-	-
10/01/2024	47	1,500	148,740.00	24	700	70,091.00
10/02/2024	18	750	73,125.00	27	775	75,740.75
10/03/2024	40	1,000	96,140.00	1	50	4,780.00
10/04/2024	21	500	47,800.00	27	900	86,715.00
10/07/2024	66	2,400	221,304.00	20	800	74,480.00
10/08/2024	27	1,050	96,106.50	14	550	50,413.00
10/09/2024	15	450	41,436.00	15	600	55,458.00
10/10/2024	18	638	58,185.60	10	350	31,976.00
10/11/2024	15	500	45,815.00	19	500	45,920.00
10/14/2024	28	812	73,786.44	16	600	54,750.00
10/15/2024	32	1,005	91,565.55	23	650	59,501.00
10/16/2024	24	700	62,979.00	7	350	31,608.50
10/17/2024	19	600	53,778.00	24	850	76,534.00
10/18/2024	4	100	9,110.00	24	750	68,422.50
10/21/2024	38	1,202	108,973.32	20	664	60,835.68
10/22/2024	42	1,250	111,487.50	66	1,586	141,994.58
10/23/2024	44	1,200	107,832.00	11	500	45,300.00
10/24/2024	29	800	71,424.00	21	900	80,523.00
10/25/2024	26	1,650	134,508.00	1	100	8,155.00
10/28/2024	39	1,086	87,955.14	33	976	79,534.24
10/29/2024	8	400	32,640.00	22	550	44,968.00
10/30/2024	28	665	53,246.55	-	-	-
10/31/2024	14	450	35,226.00	10	200	15,780.00
11/01/2024	5	150	11,629.50	14	475	37,164.00
11/04/2024	26	825	65,010.00	14	450	35,635.50
11/05/2024	23	450	34,812.00	20	650	50,570.00
11/06/2024	23	750	58,035.00	13	325	25,525.50
11/07/2024	-	-	-	28	850	65,807.00
11/08/2024	11	250	19,500.00	5	200	15,716.00
11/11/2024	9	350	27,580.00	24	600	47,502.00
11/12/2024	25	650	50,498.50	7	300	23,376.00
11/13/2024	17	550	41,717.50	3	100	7,660.00
11/14/2024	3	50	3,792.50	17	475	36,152.25
11/15/2024	10	175	13,259.75	12	250	19,100.00

Total	2,572	81,145	7,546,468.87	2,713	82,558	7,767,712.01
11/18/2024	17	350	26,890.50	29	568	43,860.96
11/19/2024	22	525	40,351.50	15	482	37,282.70
11/20/2024	13	300	22,884.00	17	400	30,792.00
11/21/2024	6	175	13,350.75	17	500	38,420.00
11/22/2024	7	200	15,646.00	15	450	35,325.00
11/25/2024	14	500	39,440.00	27	950	75,249.50
11/26/2024	30	1,050	83,433.00	44	1,000	79,720.00
11/27/2024	21	775	60,612.75	9	400	31,540.00
11/28/2024	17	800	61,504.00	25	725	56,020.75
11/29/2024	33	530	39,988.50	3	100	7,640.00
12/02/2024	20	562	41,987.02	13	400	30,092.00
12/03/2024	15	500	37,460.00	21	600	45,096.00
12/04/2024	-	-	-	32	951	73,255.53
12/05/2024	11	175	13,865.25	17	599	47,776.24
12/06/2024	7	150	12,022.50	10	400	32,216.00
12/09/2024	4	200	16,360.00	31	649	53,328.33
12/10/2024	25	750	61,147.50	21	575	47,046.50
12/11/2024	19	450	35,986.50	-	-	-
12/12/2024	23	575	45,195.00	9	350	27,727.00
12/13/2024	19	500	38,755.00	20	575	44,677.50
12/16/2024	28	975	74,363.25	1	50	3,860.00
12/17/2024	17	450	34,119.00	20	650	49,419.50
12/18/2024	10	237	18,137.61	28	900	69,399.00
12/19/2024	20	613	46,158.90	-	-	-
12/20/2024	6	50	3,797.50	-	-	-
12/23/2024	8	100	7,638.00	4	300	23,205.00
12/24/2024	1	1	77.50	6	201	15,657.90
12/27/2024	2	50	3,905.00	10	200	15,740.00
12/30/2024	16	400	31,156.00	4	105	8,226.75
12/31/2024	2	50	3,850.00	18	945	73,643.85