Sansan, Inc. (“the Company”) hereby announces that, as of May 22, 2026, there has been a change in its major shareholder, as set out below.

1. Background of the Change

As of May 29, 2026, the shareholder listed below submitted the Large Shareholding Report (Change in Shareholding) to the Director-General of the Kanto Local Finance Bureau and the Company confirmed the changes in its major shareholders.

2. Overview of Major Shareholder Subject to the Change

3. Number of Voting Rights (Number of Shares) Held by the Shareholder and Its Ratio to the Voting Rights Held by All Shareholders Before and After the Change

Notes:

1. 1. Total number of shares issued as of February 28, 2026: 126,780,856 shares
2. 2. Number of shares without voting rights deducted from the total number of issued shares: 194,656 shares
3. 3. The ratio of voting rights held is calculated based on the number of voting rights, which stood at 1,265,862 as of February 28, 2026 and is rounded to the third decimal place.
4. 4. The ranking among major shareholders before and after the change have been assumed by the Company based on the shareholder register as of February 28, 2026.
5. 5. The above information is based on the Large Shareholding Report (Change in Shareholding) submitted by the shareholder, and the Company has not confirmed the actual number of shares held in the name of the corporation.

4. Future Outlook

This matter is based on the submission of the Large Shareholding Report (Change in Shareholding), and there are no particular matters to be noted regarding the future outlook.