The substantial shareholding report status for The Kosei Securities Co.,Ltd. was updated, showing that 巽也蔵 held 19.99% as of 5 January 2026, with post-change holdings of 1,896,325 shares. It also shows changes in ownership percentages reported in the most recent prior change reports dated 11 November 2025, 10 November 2025, 18 November 2025 and 19 August 2025.
In the substantial shareholding report status dated 5 January 2026, the shareholder name is 株式会社巽也蔵, the ownership percentage is 19.99%, and post-change holdings are 1,896,325 shares.
On 18 November 2025, an individual reported an ownership percentage of 5.70% in a change report, with holdings of 540,433 shares.
In the change report dated 11 November 2025, 巽也蔵's ownership percentage was 20.39%, with holdings of 1,934,125 shares.
On 10 November 2025, 巽也蔵's ownership percentage was 20.38%, with holdings of 1,933,125 shares.
On 19 August 2025, 巽也蔵's ownership percentage was 19.69%, with holdings of 1,867,525 shares.