Notice Concerning the Completion of Retirement of Treasury Shares(March 15, 2024) Notice Concerning Retirement of Treasury Shares(February 28, 2024 ) Notice Concerning the Status of the Purchase of Treasury Shares, and Completion of the Purchase(February 26, 2024) Announcement Concerning the Status of the Purchase of Treasury Shares(February 1, 2024) Announcement Concerning the Status of the Purchase of Treasury Shares(January 5, 2024) Announcement Concerning the Results of the Purchase of Treasury Shares through ToSTNeT-3(December 25, 2023) Notice Concerning the Purchase of Treasury Shares through ToSTNeT-3(December 22, 2023) Announcement Concerning the Status of the Purchase of Treasury Shares(December 1,2023) Announcement Concerning the Results of the Purchase of Treasury Shares through ToSTNeT-3(November 30, 2023) Notice Concerning the Purchase of Treasury Shares through ToSTNeT-3(November 29, 2023) Announcement of Analyst Report Release by Shared Research Inc.(November 6,2023) Announcement Concerning the Status of the Purchase of Treasury Shares(November 1,2023) Announcement Concerning the Status of the Purchase of Treasury Shares(October 2,2023) Announcement Concerning the Status of the Purchase of Treasury Shares(September 1,2023) Announcement Concerning the Results of the Purchase of Treasury Shares through ToSTNeT-3(August 3,2023) Notice concerning the Purchase of Treasury Shares through ToSTNeT-3(August 2,2023) Announcement Concerning the Status of the Purchase of Treasury Shares(August 1,2023) Announcement Concerning the Status of the Purchase of Treasury Shares(July 3,2023) Announcement Concerning the Status of the Purchase of Treasury Shares(June 1,2023) Notice Regarding Purchase of Treasury Shares and Retirement of Treasury Shares(May 11,2023) Notice Concerning Shareholder Returns for the Fiscal Year Ending March 31, 2024(May 11,2023)

Notice Concerning the Completion of Retirement of Treasury Shares(March 15,2023) Notice Concerning the Status of the Purchase of Treasury Shares, Completion of the Purchase, and Retirement of Treasury Shares(February 27,2023) Announcement Concerning the Results of the Purchase of Treasury Shares through ToSTNeT-3(February 3,2023) Notice Concerning the Purchase of Treasury Shares through ToSTNeT-3(February 2,2023) Announcement Concerning the Status of the Purchase of Treasury Shares(February 1,2023) Announcement Concerning the Status of the Purchase of Treasury Shares(January 5,2023) Announcement Concerning the Status of the Purchase of Treasury Shares(December 1,2022) Announcement Concerning the Results of the Purchase of Treasury Shares through ToSTNeT-3(November 30,2022) Notice Concerning the Purchase of Treasury Shares through ToSTNeT-3(November 29,2022) Partial Amendments to “Notice Regarding Purchase of Treasury Shares and Retirement of Treasury Shares”(November 28,2022) Announcement Concerning the Status of the Purchase of Treasury Shares(November 1,2022) Announcement Concerning the Status of the Purchase of Treasury Shares(October 3,2022) Announcement Concerning the Status of the Purchase of Treasury Shares(September 1,2022) Announcement concerning the Results of the Purchase of Treasury Shares through ToSTNeT-3(August 4,2022) Notice concerning the Purchase of Treasury Shares through ToSTNeT-3(August 3,2022) Notice Regarding Purchase of Treasury Shares and Retirement of Treasury Shares(August 2,2022)