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Koshidaka Holdings

2157.TTSE PRIMEServices
Major holders (5%+) · 5
HolderStakeChangeFiled
Youzan26.81%0.00pp2026-05-13
Fukuru9.94%0.00pp2026-05-13
FMR LLC8.63%+1.35pp2026-06-12
Fidelity Management & Research Company LLC8.26%0.00pp2026-06-12
IXGS, Inc.5.00%-0.28pp2026-09-14

Each holder's own ratio from its most recent large-shareholding report.

Former and minor holders (below 5%) · 9
FMR Investment Management (UK) Limited4.72%2026-07-23
SMBC Nikko Securities Inc.2.88%2026-09-07
Sumitomo Mitsui DS Asset Management Company, Limited2.51%2026-09-07
Miwako Koshidaka0.79%2026-05-13
Fidelity Management & Research (Japan) Limited0.57%2026-06-12
Sumitomo Mitsui Banking Corporation0.21%2026-09-07
FIAM LLC0.17%2026-06-12
Hiroshi Koshidaka0.06%2026-05-13
Youzan0.00%2026-05-13
Ownership history · 100
FiledHolderRatioChangePurpose
2026-09-14IXGS, Inc.2026-09-145.00%-0.28ppPure investment
2026-09-07Sumitomo Mitsui Banking Corporation2026-09-070.21%no changeStrategic holding (cross-shareholding)
2026-09-07Sumitomo Mitsui DS Asset Management Company, Limited2026-09-072.51%-1.01ppPure investment
2026-09-07SMBC Nikko Securities Inc.2026-09-072.88%-0.07ppSecurities trading business
2026-09-04IXGS, Inc.2026-09-045.28%-1.23ppPure investment
2026-08-28IXGS, Inc.2026-08-286.51%-0.89ppPure investment
2026-08-13IXGS, Inc.2026-08-137.40%-1.04ppPure investment
2026-07-27IXGS, Inc.2026-07-278.44%-1.00ppPure investment
2026-07-23AmendedFMR Investment Management (UK) Limited2026-07-23 · amended4.72%+4.33pp—
2026-07-07Sumitomo Mitsui Banking Corporation2026-07-070.21%no changeStrategic holding (cross-shareholding)
2026-07-07SMBC Nikko Securities Inc.2026-07-072.95%+0.07ppSecurities trading business
2026-07-07Sumitomo Mitsui DS Asset Management Company, Limited2026-07-073.52%-1.45ppPure investment
2026-06-23IXGS, Inc.2026-06-239.44%-0.60ppPure investment
2026-06-12AmendedFIAM LLC2026-06-12 · amended0.17%no changeAsset management / investment
2026-06-12AmendedFidelity Management & Research Company LLC2026-06-12 · amended8.26%no changeAsset management / investment
2026-06-12AmendedFIAM LLC2026-06-12 · amended0.17%+0.03ppAsset management / investment
2026-06-12AmendedFidelity Management & Research Company LLC2026-06-12 · amended8.26%-0.14ppAsset management / investment
2026-06-12AmendedFidelity Management & Research (Japan) Limited2026-06-12 · amended0.57%-0.47pp—
2026-06-12AmendedFidelity Management & Research Company LLC2026-06-12 · amended8.40%-0.55ppAsset management / investment
2026-06-12AmendedFidelity Management & Research (Japan) Limited2026-06-12 · amended1.04%no change—

Each holder in 5% reports, joint holders included. Purpose is classified from the filed text.