Investment in OneStream, Inc.

IMPORTANT NOTICE

ACCESS TO THIS WEBSITE MAY BE RESTRICTED UNDER SECURITIES LAWS OR REGULATIONS IN CERTAIN JURISDICTIONS. THIS NOTICE REQUIRES YOU TO CONFIRM CERTAIN MATTERS (INCLUDING THAT YOU ARE NOT RESIDENT IN SUCH A JURISDICTION) BEFORE YOU MAY OBTAIN ACCESS TO THE WEBSITE.

This website has been prepared for use solely by individuals who are resident in the United Kingdom or Switzerland for tax and investment purposes. The information contained in this website is not for release, publication, or distribution, directly or indirectly, in whole or in part, to US persons (as defined in Regulation S under the US Securities Act of 1933) ("US Persons") or into or within the United States (including its territories and possessions, any state of the United States and the District of Columbia), Australia, Canada, the European Economic Area, Japan, the Republic of South Africa or any other jurisdiction where to do so would constitute a violation of the relevant laws or regulations of such jurisdiction (each a "Restricted Jurisdiction").

Viewing this website and the information contained herein may not be lawful if you are resident or located in a Restricted Jurisdiction. In certain jurisdictions, including the Restricted Jurisdictions, only certain categories of person may be allowed to view such materials. Any person resident or located outside the United Kingdom or Switzerland who wishes to view this website and the information herein must first satisfy themselves that they are not subject to any local requirements that prohibit or restrict them from doing so.

If you are not resident or located in a Restricted Jurisdiction, you may access the website and the information contained herein but you are responsible for first satisfying yourself as to the full observance of the laws and regulatory requirements of your jurisdiction. If you are in any doubt, you should not continue to seek to access.

This website and the information contained herein is not being, and must not be, copied, forwarded, transmitted or otherwise distributed or sent to any US Person or in or into any Restricted Jurisdiction and persons receiving such information must not copy, forward, transmit or otherwise distribute or send it to any US Person or in or into any Restricted Jurisdiction.

If you are not permitted to view this website or are in any doubt as to whether you are permitted to do so, please exit the website and seek independent advice. We do not assume any responsibility for any violation by any person of any of these restrictions.

INVESTMENT RISKS

Past performance is not a reliable indicator of future results. The value of shares and the income from them can go down as well as up as a result of market and currency fluctuations and investors may not get back the amount they originally invested. Investment in unlisted securities is likely to carry more risks than investment in listed securities. An investment in HgT entails risks which are described in the annual report and KID.

WEBSITE TERMS OF USE

By using this website you confirm that you have read, understood, and accepted the terms and conditions contained in our disclaimer and terms of use details of which can be found at the bottom of each page of this website. These terms of use may change at any time. Any changes will be posted on the relevant page of this website and you should check regularly to see any changes or updates to the terms of use. Your access to this website is governed by the version of terms of use then in force.

CONFIRMATION OF UNDERSTANDING AND ACCEPTANCE

By clicking "I UNDERSTAND AND AGREE" and entering the website, you represent, warrant and agree that you: (1) have read and understood this notice, and will read our disclaimer and our website terms of use, details of which can be found at the bottom of each page of this website ; (2) agree to be bound by their respective terms (and acknowledge that the Company and its affiliates, subsidiaries, directors and advisers may rely on your agreement); (3) are a resident of the United Kingdom or Switzerland or another jurisdiction into which the distribution of the information contained in this website does not constitute a violation of the relevant laws of such jurisdiction; (4) are not a US Person or a resident of or located in any Restricted Jurisdiction and are permitted under relevant laws to receive the information contained in this website; and (5) agree that you will not copy, forward, transmit or otherwise distribute or send any information contained in this website to any US Person, to any person who is resident or located in a Restricted Jurisdiction or to any publication with a general circulation in Restricted Jurisdiction. If you are not able to so represent, warrant and agree, you must click "I DECLINE" or otherwise exit this website.

06 January 2026

Hg, the Manager of HgCapital Trust plc (“HgT”), today announces an investment in OneStream, Inc. (Nasdaq: OS).

The terms of the transaction are not disclosed.

HgT will invest approximately £93 million in OneStream with other institutional clients of Hg investing alongside HgT through the Hg Saturn Fund.

HgT, whose shares are listed on the London Stock Exchange, gives private and institutional investors the opportunity to participate in all Hg's investments. Note that these figures only relate to HgT’s share of Hg’s overall investment in OneStream.

HgT’s liquid resources available for future deployment (including all announced transactions, the interim dividend paid in October 2025, and the available balance on the bank facility) are estimated to be £402 million (16% of the pro-forma 30 September 2025 NAV of £2.5 billion).

The investment will reduce HgT’s outstanding commitments to invest in Hg transactions to approximately £1.7 billion (68% of the pro-forma 30 September 2025 NAV).

Further details of the investment can be found: https://investor.onestream.com/

For further information, please contact:

HgCapital Trust
Laura Dixon
[email protected]
+44 78 2459 2894

George Crowe
[email protected]
+44 7774 617 150

Cadarn
Lucy Clark
[email protected]
+44 (0)7984 184 461

David Harris
[email protected]
+44 (0)7368 883 211

Hg
Tom Eckersley
[email protected]

Sam Ferris
[email protected]

About HgCapital Trust plc
HgCapital Trust plc is an investment company whose shares are listed on the London Stock Exchange (HGT.L). HGT gives investors exposure, through a liquid vehicle, to a portfolio of high-growth unquoted companies, managed by Hg, an experienced and well-resourced private equity firm with a long-term track record of delivering superior risk-adjusted returns for its investors.

For further details, see hgcapitaltrust.com and hgcapital.com

Investment in OneStream, Inc.

Quick Links

Information

Stay in touch