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Treasury Shares4220RIKEN TECHNOS CORPORATIONMaterials and Chemicals

Notice Concerning the Results of the Acquisition of Treasury Shares through an Off-Auction Purchase (ToSTNeT-3)

On 6 November 2026, 850,000 treasury shares were acquired through ToSTNeT-3. Cumulative acquisitions under the resolution reached 3,414,300 shares, for a total of ¥8,254,947,600.

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Direction
Neutral
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Scale
2038300000
¥
Wording
Definitive
How definitive the wording is.

Progress against acquisition limit

Off-auction purchase (ToSTNeT-3)

Resolved 31 July 2026 / Acquisition period 3 August 2026 to 30 December 2026

85.4%
Cumulative utilization rate
LimitAmount 93.8%
Number of Shares4,000,000 shares (maximum)
93.8%
Cumulative utilization rate
Limit
Amount¥8,800,000,000 (maximum)

The darker band is the portion acquired this time (6 November 2026). At this pace, the monetary limit will be reached first, and the acquisition will end without using the full share-count limit.

Number of Shares
Limit4,000,000 shares (maximum)
Cumulative total3,414,300 shares (as of 6 November 2026)
Current850,000 shares
Amount
Limit¥8,800,000,000 (maximum)
Cumulative total¥8,254,947,600 (as of 6 November 2026)
Current¥2,038,300,000
Average acquisition price for this transaction (calculated)¥2,398 per shareCurrent acquisition price ÷ current number of shares acquired

消化率と残りは、会社が示した累計・今回と上限から算出しています。進捗率=上限に対してどこまで使ったかの割合です。 ToSTNeT is a system for trading outside the exchange's regular trading hours.

Progress against acquisition limit
ItemDetails
Total number of shares acquired in this transaction850,000 shares
Total current acquisition price¥2,038,300,000
Acquisition date/acquisition period6 November 2026
Method of acquisitionOff-auction purchase (ToSTNeT-3)
Cumulative number of shares acquired3,414,300 shares (as of 6 November 2026)
Cumulative acquisition cost¥8,254,947,600 (as of 6 November 2026)
Resolution date31 July 2026
Maximum number of shares to be acquired4,000,000 shares (maximum)
Total acquisition price¥8,800,000,000 (maximum)
Acquisition period under the resolution3 August 2026 to 30 December 2026
Items this document does not state (3)
Percentage of total issued sharesWhether acquisition has been completedAverage Acquisition Price

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 pursue an agile capital policy in response to changes in the business environment, improve capital efficiency and contribute to shareholder returns.

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 Concerning the Results of the Acquisition of Treasury Shares through an Off-Auction Purchase (ToSTNeT-3) | RIKEN TECHNOS CORPORATION (4220) timely disclosure | Komori