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M&A and Subsidiary Changes4521KAKEN PHARMACEUTICAL CO.,LTD.Pharmaceuticals

Notice Regarding the Absorption-Type Merger of a Consolidated Subsidiary (Simplified Merger and Abbreviated Merger)

Kaken Pharmaceutical will absorb its wholly owned consolidated subsidiary ARTham Therapeutics and dissolve the company. The effective date is scheduled for 31 December 2026, and no shares or cash will be allocated.

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This transaction

This merger
CounterpartyKAKEN PHARMACEUTICAL CO.,LTD.
Disclosing companyKAKEN PHARMACEUTICAL CO.,LTD.
ARTham Therapeutics Co., Ltd.Subject of this transactionNumber of shares acquired All issued shares of each class of ARTham shares (excluding treasury shares)Voting rights ownership percentage Before 100% (after not disclosed)
TimelineThe spacing between the points is proportional to the actual number of days.
Target company

Pharmaceutical research and development

Location Bunkyo-ku, TokyoShare capital ¥100 millionDate of incorporation 4 June 2018
Net Sales¥0 million (fiscal year ended March 2026, standalone)
Operating profit-¥15 million (fiscal year ended March 2026, standalone)
Net income for the current fiscal year-¥17 million (fiscal year ended March 2026, standalone)
Net assets¥100 million (fiscal year ended March 2026, standalone)
Consideration and expenses
Acquisition priceNo shares, cash or other consideration will be allocated.
Type of ConsiderationNo consideration (no shares, cash or other consideration will be allocated)
Merger ratio/share exchange ratioNot applicable (as the Company holds all issued shares of each class of ARTham shares, no shares, cash or other consideration will be allocated)
Impact on Business Performance

As this is a merger with a consolidated subsidiary wholly owned by the Company, the impact on the Company's consolidated results will be immaterial.

Procedures and assumptions
Conditions Precedent to ExecutionAs this merger qualifies as a simplified merger for the Company and a short-form merger for ARTham, the merger will be carried out without obtaining approval of the merger agreement at a shareholders' meeting of either the Company or ARTham.
Management structure after acquisitionThere will be no changes to the Company's name, location, representative's title or name, business activities, capital or fiscal year-end following the merger. ARTham will be dissolved.
This transaction
ItemDetails
Transaction nameThis merger
Counterparty nameKAKEN PHARMACEUTICAL CO.,LTD.
Name of the Subject CompanyARTham Therapeutics Co., Ltd.
Business Description of the Subject CompanyPharmaceutical research and development
Location of the Subject CompanyBunkyo-ku, Tokyo
Capital Stock of the Subject Company¥100 million
Date of Establishment of the Subject Company4 June 2018
Net Sales of the Subject Company¥0 million (fiscal year ended March 2026, standalone)
Operating Profit of the Subject Company-¥15 million (fiscal year ended March 2026, standalone)
Net Income of the Subject Company-¥17 million (fiscal year ended March 2026, standalone)
Net Assets of the Subject Company¥100 million (fiscal year ended March 2026, standalone)
Acquisition priceNo shares, cash or other consideration will be allocated.
Type of ConsiderationNo consideration (no shares, cash or other consideration will be allocated)
Merger ratio/share exchange ratioNot applicable (as the Company holds all issued shares of each class of ARTham shares, no shares, cash or other consideration will be allocated)
Number of shares acquiredAll issued shares of each class of ARTham shares (excluding treasury shares)
Voting rights ownership percentageBefore 100% (after not disclosed)
Impact on Business PerformanceAs this is a merger with a consolidated subsidiary wholly owned by the Company, the impact on the Company's consolidated results will be immaterial.
Date of board resolution9 November 2026
Contract Date9 November 2026
Execution Date / Effective Date31 December 2026 (scheduled)
Conditions Precedent to ExecutionAs this merger qualifies as a simplified merger for the Company and a short-form merger for ARTham, the merger will be carried out without obtaining approval of the merger agreement at a shareholders' meeting of either the Company or ARTham.
Management structure after acquisitionThere will be no changes to the Company's name, location, representative's title or name, business activities, capital or fiscal year-end following the merger. ARTham will be dissolved.
Items this document does not state (10)
Expenses other than the acquisition priceTender offer priceMinimum number of shares to be purchasedTender offer periodFunding arrangementsGoodwill amountAmount of extraordinary income (loss)Valuation methodologyIndependent valuation institutionSpecial Committee

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.

To concentrate management resources within the Group and improve the efficiency of organizational operations.

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Notice Regarding the Absorption-Type Merger of a Consolidated Subsidiary (Simplified Merger and Abbreviated Merger) | KAKEN PHARMACEUTICAL CO.,LTD. (4521) timely disclosure | Komori