Tourmaline Employee Email (Form SC14D9C)

Tourmaline Employee Email

Sender: Sandeep Kulkarni

Subject: Get to know Novartis

Send Date: September 26, 2025

Distribution: All Employees

Dear Tourmaline colleagues,

I'd like to invite you to a special webcast session entitled "Get to know Novartis" where we will be introduced to Novartis as an organization.

This is a valuable opportunity to hear directly from key members of the Novartis leadership team and get a first look at the company. While this session is just the beginning of the journey, it's a meaningful step forward-and I strongly encourage everyone to attend.

The webcast will be 100% virtual and designed to give us a high-level overview of Novartis-who they are, how they operate, and what they value. You'll also be introduced to several of their leaders who will play a role in the integration planning going forward.

It is important to note that this session will not cover topics in detail. We are under strict regulatory restrictions for the next few weeks in terms of what information can be shared and how much Novartis can say. We know you have many questions, and while not all of them can be answered at this stage, more detailed information will be shared as the process unfolds. This is an exciting moment for our company and a unique chance to get to know the Novartis team.

I look forward to seeing you there-and to taking this next step together with openness and optimism.

The session is scheduled for this coming Tuesday (September 30^th) at 11am ET. Brad will be sending a Teams invite shortly.

Sandeep