AI Terminal

MODULE: AI_ANALYST
Interactive Q&A, Risk Assessment, Summarization
MODULE: DATA_EXTRACT
Excel Export, XBRL Parsing, Table Digitization
MODULE: PEER_COMP
Sector Benchmarking, Sentiment Analysis
SYSTEM ACCESS LOCKED
Authenticate / Register Log In

Solvay SA

Major Shareholding Notification Oct 27, 2025

4005_mrq_2025-10-27_a468519b-9047-4c42-bb65-d7c15c0d8eee.pdf

Major Shareholding Notification

Open in Viewer

Opens in native device viewer

Press release Regulated information

Participation notification by Morgan Stanley

Brussels, October 27, 2025, 17:45 CET

In line with Belgian transparency legislation (Law of May 2, 2007), Morgan Stanley recently sent to Solvay the following transparency notification indicating that they crossed the threshold of 3%.

Here is a summary of the notification:

Date on which the threshold
was crossed
Voting rights after the
transaction
Equivalent financial
instruments after the
transaction
Total
October 16, 2025 / / /

The notification, dated October 22, 2025, contains the following information:

  • Reason for the notification:
  • Acquisition or disposal of financial instruments that are treated as voting securities
  • Downward crossing of the lowest threshold
  • Notified by: A parent undertaking or a controlling person
  • Date on which the threshold is crossed: October 16, 2025
  • Threshold of direct voting rights crossed: 3% downwards
  • Denominator: 105,876,416
  • Persons subject to the notification requirement: Morgan Stanley c/o The Corporation Trust Company (DE), Corporation Trust Center, 1209 Orange Street, Wilmington, Delaware 19801, USA

solvay.com 1

● Notified details:

A) Voting rights Previous notification After the transaction
# of voting rights # of vot ing rights % of voting rights
Holders of voting rights Linked to securities Not linked to the
securities
Linked to securities Not linked to the
securities
Morgan Stanley 0
Morgan Stanley & Co. International plc 34,972
Subtotal 34,972
TOTAL
B) Equivalent financial instruments After the transaction
Holders of equivalent financial instruments Type of financial instrument Expiration date Exercise period or date # of voting rights
that may be
acquired if the
instrument is
exercised
% of voting rights Settlement
TOTAL
The totals will be updated once you have clicked on
TOTAL (A & B) # of voting rights % of voting rights
CALCULATE

Transparency notifications and the full chain of controlled undertakings through which the holding is effectively held are available on the Investor Relations Section of Solvay's website.

solvay.com 2

Contacts

Peter Boelaert +32 479 30 91 59

Laetitia Van Minnenbruggen +32 484 65 30 47

[email protected]

Media relations Investor relations

Boris Cambon-Lalanne +32 471 55 37 49

Geoffroy d'Oultremont +32 478 88 32 96

Vincent Toussaint +33 6 74 87 85 65

[email protected]

About Solvay

Solvay, a pioneering chemical company with a legacy rooted in founder Ernest Solvay's pivotal innovations in the soda ash process, is dedicated to delivering essential solutions globally through its workforce of circa 9,000 employees. Since 1863, Solvay harnesses the power of chemistry to create innovative, sustainable solutions that answer the world's most essential needs such as purifying the air we breathe and the water we drink, preserving our food supplies, protecting our health and well-being, creating eco-friendly clothing, making the tires of our cars more sustainable and cleaning and protecting our homes. Solvay's unwavering commitment drives the transition to a carbon-neutral future by 2050, underscoring its dedication to sustainability and a fair and just transition. As a world-leading company with €4.7 billion in net sales in 2024, Solvay is listed on Euronext Brussels and Paris (SOLB). For more information about Solvay, please visit solvay.com or follow Solvay on Linkedin.

Ce communiqué de presse est également disponible en français. Dit persbericht is ook in het Nederlands beschikbaar.

solvay.com 3

Talk to a Data Expert

Have a question? We'll get back to you promptly.