Komori
Occurring Fact1861Kumagai Gumi Co.,Ltd.Construction and Materials

Notice of Change in Major Shareholders

Oasis Management Company Ltd.'s voting rights ownership ratio fell from 10.45% as of 14 March 2024 to 1.53% as of 23 April 2026, resulting in a change in major shareholder status.

Worth reading
28Immaterial
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
1.53
Voting rights ownership ratio (after change, %)
Wording
Conditional
How definitive the wording is.

Change in major shareholders

Subject Entity

Oasis Management Company Ltd. (Oasis Management Company Ltd.), a major shareholder of Kumagai Gumi Co.,Ltd.

Occurrence23 April 2026
8 days later
Awareness or receipt of notice1 May 2026 (the Company confirmed the change upon the filing of a Change Report)
This disclosure05/01/2026

Change in voting rights ownership ratio

As of 14 March 202410.45%→1.53%(-8.92pt)

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

As of 14 March 2024: 176,755 voting rights (17,675,536 shares held), 10.45%

Voting rights ownership percentage after the change

As of 23 April 2026: 25,800 voting rights (2,580,036 shares held), 1.53%

Related procedures

Court or authority

Kanto Local Finance Bureau

Outlook

There are no particular matters to disclose.

Event that occurred
ItemDetails
Event nameChange in major shareholders
Date of occurrence23 April 2026
Date recognized / date notice received1 May 2026 (the Company confirmed the change upon the filing of a Change Report)
Subject EntityOasis Management Company Ltd. (Oasis Management Company Ltd.), a major shareholder of Kumagai Gumi Co.,Ltd.
Court or authorityKanto Local Finance Bureau
Voting rights ownership percentage before the changeAs of 14 March 2024: 176,755 voting rights (17,675,536 shares held), 10.45%
Voting rights ownership percentage after the changeAs of 23 April 2026: 25,800 voting rights (2,580,036 shares held), 1.53%
OutlookThere are no particular matters to disclose.
Items this document does not state (17)
Target Locations / ProductsCauseAmount 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 Company states that it confirmed the change upon the filing of a Change Report with the Kanto Local Finance Bureau on 1 May 2026. No specific reason for the decline in the ownership ratio is provided.

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.
Notice of Change in Major Shareholders | Kumagai Gumi Co.,Ltd. (1861) timely disclosure | Komori