Komori
Treasury Shares5019Idemitsu Kosan Co.,Ltd.Energy Resources

Notice Regarding the Status of Share Repurchases

In May 2026, the company acquired 8,557,900 treasury shares through market purchases for ¥11,626,064,650. Cumulative acquisitions since the resolution totaled 17,631,900 shares at ¥24,872,552,100.

Worth reading
54Recurring
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
11626064650
¥
Wording
Definitive
How definitive the wording is.

Progress against acquisition limit

Market purchases

Resolved 11 November 2025 / Acquisition period 12 November 2025 to 11 November 2026

41.0%
Cumulative utilization rate
Limit25,368,100 株 remaining
Number of Shares43,000,000 shares (maximum)
—
No Track Record Reported
Limit
Amount¥30 billion (maximum)

The darker band is the portion acquired this time (1 May 2026–31 May 2026 (on a trade-date basis)).

Number of Shares
Limit43,000,000 shares (maximum)
Cumulative total17,631,900 shares (through 31 May 2026)
Current8,557,900 shares
Amount
Limit¥30 billion (maximum)
Cumulative total¥24,872,552,100 (through 31 May 2026)
Current¥11,626,064,650
Percentage of total issued shares3.5%
Average acquisition price for this transaction (calculated)¥1,359 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。

Progress against acquisition limit
ItemDetails
Total number of shares acquired in this transaction8,557,900 shares
Total current acquisition price¥11,626,064,650
Acquisition date/acquisition period1 May 2026–31 May 2026 (on a trade-date basis)
Method of acquisitionMarket purchases
Cumulative number of shares acquired17,631,900 shares (through 31 May 2026)
Cumulative acquisition cost¥24,872,552,100 (through 31 May 2026)
Resolution date11 November 2025
Maximum number of shares to be acquired43,000,000 shares (maximum)
Total acquisition price¥30 billion (maximum)
Acquisition period under the resolution12 November 2025 to 11 November 2026
Percentage of total issued shares3.5%
Items this document does not state (2)
Whether 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.

This is a report on the purchase of treasury shares; no reason for the purchases is 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 Regarding the Status of Share Repurchases | Idemitsu Kosan Co.,Ltd. (5019) timely disclosure | Komori