Komori
Occurring Fact4004Resonac Holdings CorporationMaterials and Chemicals

Notice of Change in Major Shareholders

Capital Research and Management Company’s shareholding increased from 18,157,252 shares to 20,956,652 shares, and its voting rights ownership ratio increased from 9.56% to 11.02%.

Worth reading
35Immaterial
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
2799400
Shares (increase in number of shares held)
Wording
Conditional
How definitive the wording is.

Changes in Major Shareholders

Subject Entity

Resonac Holdings Corporation, Capital Research and Management Company

Occurrence20 August 2026 (date on which the reporting obligation arose)
7 days later
Awareness or receipt of notice27 August 2026 (the change was confirmed based on the filed Large Shareholding Report (Change Report))
This disclosure08/28/2026
Amount of Impact on Business Performance

No impact on the Company’s management structure or results of operations (no impact amount stated)

Impact on Earnings Forecast

No impact on the Company’s management structure or results of operations

Change in voting rights ownership ratio

Shareholders Covered9.56%→11.02%(+1.46pt)

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

18,157,252 shares held, 181,572 voting rights, ownership ratio of 9.56% (calculated based on 191,152,811 issued shares, excluding treasury shares held at each point in time)

Voting rights ownership percentage after the change

20,956,652 shares held, 209,566 voting rights, ownership ratio of 11.02% (calculated based on 191,152,811 issued shares, excluding treasury shares held at each point in time)

Outlook

This matter is based on a Large Shareholding Report (Change Report), and has no impact on the Company’s management structure or results of operations.

Event that occurred
ItemDetails
Event nameChanges in Major Shareholders
Date of occurrence20 August 2026 (date on which the reporting obligation arose)
Date recognized / date notice received27 August 2026 (the change was confirmed based on the filed Large Shareholding Report (Change Report))
Subject EntityResonac Holdings Corporation, Capital Research and Management Company
Amount of Impact on Business PerformanceNo impact on the Company’s management structure or results of operations (no impact amount stated)
Impact on Earnings ForecastNo impact on the Company’s management structure or results of operations
Voting rights ownership percentage before the change18,157,252 shares held, 181,572 voting rights, ownership ratio of 9.56% (calculated based on 191,152,811 issued shares, excluding treasury shares held at each point in time)
Voting rights ownership percentage after the change20,956,652 shares held, 209,566 voting rights, ownership ratio of 11.02% (calculated based on 191,152,811 issued shares, excluding treasury shares held at each point in time)
OutlookThis matter is based on a Large Shareholding Report (Change Report), and has no impact on the Company’s management structure or results of operations.
Items this document does not state (16)
Target Locations / ProductsCauseAccounting period in which recognizedType of litigation or proceedingCourt or authorityPlaintiffDefendantDate 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 confirmed the change in its major shareholder based on a Large Shareholding Report (Change Report) filed on 27 August 2026. No specific reason for the increase in the shareholding was stated.

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 | Resonac Holdings Corporation (4004) timely disclosure | Komori