Notice of Change in Major Shareholders | SANTEN PHARMACEUTICAL CO.,LTD. (4536) timely disclosure

Worth reading

27Immaterial

0–100. This measures how worthwhile something is to read, not how good or bad the company is.

Direction

Neutral

Direction inferred from the company’s description.

Scale

14898

Increase in voting rights (units)

Wording

Conditional

How definitive the wording is.

Change in major shareholders

Subject Entity

SANTEN PHARMACEUTICAL CO.,LTD.; Silchester International Investors LLP

Occurrence23 October 2026

3 days later

Awareness or receipt of notice26 October 2026

This disclosure10/27/2026

Cause

The change was confirmed following the filing of a Large Shareholding Report (Change Report) by Silchester International Investors LLP with the Kanto Local Finance Bureau on 26 October 2026. The specific reason for the increase in the ownership ratio is Not disclosed.

Change in voting rights ownership ratio

Shareholders Covered9.72％→10.27％（+0.55pt）

The voting rights ownership percentage is the proportion of the voting rights exercisable at a shareholders' meeting held by the shareholder.

Voting rights ownership percentage before the change

315,605 units (31,560,500 shares), 9.72%, as of 7 October 2025. The percentage was calculated based on the figures as of 30 September 2025.

Voting rights ownership percentage after the change

330,503 units (33,050,300 shares), 10.27%, as of 23 October 2026. The percentage was calculated based on the figures as of 30 September 2026.

Related procedures

Court or authority

Kanto Local Finance Bureau

Outlook

There are no particular matters to disclose.

Event that occurred
Item	Details
Event name	Change in major shareholders
Date of occurrence	23 October 2026
Date recognized / date notice received	26 October 2026
Subject Entity	SANTEN PHARMACEUTICAL CO.,LTD.; Silchester International Investors LLP
Cause	The change was confirmed following the filing of a Large Shareholding Report (Change Report) by Silchester International Investors LLP with the Kanto Local Finance Bureau on 26 October 2026. The specific reason for the increase in the ownership ratio is Not disclosed.
Court or authority	Kanto Local Finance Bureau
Voting rights ownership percentage before the change	315,605 units (31,560,500 shares), 9.72%, as of 7 October 2025. The percentage was calculated based on the figures as of 30 September 2025.
Voting rights ownership percentage after the change	330,503 units (33,050,300 shares), 10.27%, as of 23 October 2026. The percentage was calculated based on the figures as of 30 September 2026.
Outlook	There are no particular matters to disclose.

Items this document does not state (16)

Target Locations / ProductsAmount of Impact on Business PerformanceAccounting period in which recognizedImpact on Earnings ForecastType of litigation or proceedingPlaintiffDefendantDate of filing / date of actionClaim amount / surcharge amountAmount of receivables at risk of non-collection or delayed collectionSuspended operationsScheduled resumption dateInvestigation structureMeasures to prevent recurrenceDirectors' and officers' liabilityPlanned follow-up disclosure

These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.

The reasons the company gives

The company's own explanation, not something inferred from the numbers.

The change in major shareholders was confirmed because the shareholder filed a Large Shareholding Report (Change Report) with the Kanto Local Finance Bureau.

How to read this page

This is not the documentKomori reads the disclosure the company filed and writes this summary. Figures are as stated by the company and are not audited.

Weight is not a verdictIt measures how much this changes what the company had already told the market. It is not a view on the shares.

Corrections happenIf the company reissues this disclosure, the page is rebuilt from the corrected version and the revision number moves up.