Company AB Science

AB

FR0010557264

Pharmaceuticals

Market Closed - Euronext Paris 16:55:00 02/10/2026 BST			5-day change	1st Jan Change
0.5440 ^EUR	-6.53%		-20.47%	-64.58%

09-11	Certain Ordinary Shares of AB Science S.A. are subject to a Lock-Up Agreement Ending on 11-SEP-2026.	CI
08-17	AB Science completes settlement and delivery of its private placement

Business description: AB Science

AB Science specializes in research, development, and sales of kinase protein inhibitors (KPI), therapeutic drugs used in treating cancerous tumors, inflammatory and neuro-degenerative diseases in both humans and animals.

Number of employees: 31

Sales by Activity: AB Science

Fiscal Period: December	2021 (EUR)	2022 (EUR)	2023 (EUR)	2024 (EUR)	2025 (EUR)
Pharmaceuticals	1.61M	958K	970K	1.07M	1.17M

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Geographical breakdown of sales: AB Science

Fiscal Period: December	2021 (EUR)	2022 (EUR)	2023 (EUR)	2024 (EUR)	2025 (EUR)
Europe	-	-	-	-	955K
outside Europe	-	-	-	-	219K

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Executive Committee: AB Science

Manager	Title	Age	Since
Stéphane Ledermann CEO	Chief Executive Officer	-	06/07/2026
Laurent Guy DFI	Director of Finance/CFO	-	19/11/2009
Christian Fassotte CTO	Chief Tech/Sci/R&D Officer	-	31/03/2018
Alexis Bernard PRN	Corporate Officer/Principal	-	-

See AB SCIENCE governance

Composition of the Board of Directors: AB Science

Director	Title	Age	Since
Alain Moussy CHM	Chairman	-	10/07/2001
Patrick Moussy BRD	Director/Board Member	-	19/09/2011
Cécile de Guillebon BRD	Director/Board Member	65	26/06/2021
Catherine Johnston-Roussillon BRD	Director/Board Member	68	26/06/2021
Guillemette Latscha BRD	Director/Board Member	-	26/06/2021
Stéphane Ledermann CHM	Chairman	-	06/07/2026

Composition of the Board of Directors

Shareholders: AB Science

Name	Stocks	%	Valuation
Jean-Claude Marian 26.86 %	25,932,042	26.86 %	21 M €
Gestys SA 0.0155 %	15,000	0.0155 %	12 249 €
UBS Wealth Management SGIIC SA 0.003211 %	3,100	0.003211 %	2 531 €

Name	Stocks	%	Valuation
Friedland Gestion SAS 5.198 %	85,471	5.198 %	33 160 €

Name	Stocks	%	Valuation
Friedland Gestion SAS 4.167 %	64,103	4.167 %	20 403 €

List of AB SCIENCE shareholders

Company details: AB Science

AB Science SA

3, avenue George V

75008, Paris

+33 1 47 20 00 14

http://www.ab-science.com

Specialty & Advanced Pharmaceuticals

Add to a list 0 selected To use this feature you must be a member Log in Sign up	Change	5-day change	1-year change	3-year change	Capi.($)
AB SCIENCE	-6.53%	-20.47%	-58.79%	-77.52%	48.99M
ELI LILLY AND COMPANY	-0.61%	-3.43%	+36.07%	+117.61%	1,019B
JOHNSON & JOHNSON	-1.02%	-5.60%	+35.72%	+64.82%	617B
ABBVIE INC.	+1.11%	-0.58%	+12.36%	+78.27%	464B
MERCK & CO., INC.	+0.34%	-3.01%	+61.79%	+41.79%	356B
ROCHE HOLDING AG	-0.95%	-4.05%	+20.54%	+40.33%	333B
NOVARTIS AG	-1.46%	-2.89%	+10.57%	+26.54%	267B
ASTRAZENECA PLC	-1.35%	-5.43%	-6.17%	+8.82%	244B
AMGEN INC.	-1.04%	-2.79%	+35.30%	+54.42%	218B
GILEAD SCIENCES, INC.	-1.87%	-4.10%	+28.44%	+97.54%	179B
Average	-1.34%	-5.10%	+17.58%	+45.26%	369.72B
Weighted average by Cap.	-0.60%	-3.33%	+29.07%	+71.15%