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Tools · FilingsUpdated with new filings

Japan Activist & 5% Ownership Stakes

Disclosed stakes above 5%, with activist groups and ownership changes.

Data through · Updated with new filings

4

new stakes above 5% filed in the past week

The largest move was 森下 和広 in MabGenesis, +0.00 pp.

7 rows match “653A” · Clear · Go to MabGenesis (653A) →

Data coverage and sources

Shows 7 of 7 filings.

Curated engagement groups match legal filer codes. Affiliated filers count once per issuer, using the largest disclosed stake. A filing does not imply an active campaign.

Dates select original filings, with retained later corrections applied.

CSV contains accepted filings in this selection, including original text and separate English display fields. Source ratios and percent fields retain their own units.

English prose ready for 1 / 7 filings. Unverified names use source identities; originals remain available.

Displayed filings since 30 Oct 2026

Latest disclosed stakes within the selected filing window; this is not a complete ownership book. Filed changes can lag trades. A stake is the holding ratio as filed under the large-shareholding rules and includes potential shares underlying instruments such as warrants.

This week's 5% crossings

4
Download CSVAll selected filings
This week's 5% crossings
CompanyHolderStakeChangePurposeFiling
MabGenesis653A · MabGenesis株式会社五内川 拡史3.10% own · 6.21% group of 2NewPure investmentPure investment
Original (Japanese)純投資
Filed  — filing S100ZCG1
MabGenesis653A · MabGenesis株式会社ロングブラックパートナーズ株式会社9.93%NewPure investment
Japanese textロングブラックパートナーズ株式会社とREVIC復興キャピタル株式会社が共同無限責任組合員となっている九州広域復興支援投資事業有限責任組合(以下「本組合」といいます。)による純投資(投資事業有限責任組合契約に基づく組合財産の運用)として保有しています。
Filed  — filing S100Z8O1
MabGenesis653A · MabGenesis株式会社小泉 信一6.29%NewFounder, insider or family発行会社の創業株主及び取締役であり、経営参加を目的とした安定株主として保有しております。Filed  — filing S100ZAOU
MabGenesis653A · MabGenesis株式会社新庄 勝浩11.77%NewFounder, insider or family発行会社の創業株主及び代表取締役であり、経営参加を目的とした安定株主として保有しております。Filed  — filing S100ZBPL

Largest moves

1
Largest moves
CompanyHolderStakeChangePurposeFiling
MabGenesis653A · MabGenesis株式会社森下 和広5.94%+0.00 ppOther発行会社の事業育成・経営支援、および中長期的な企業価値向上を目的とした保有Filed  — filing S100ZDKD

Activist league

0

No stored data for this selection.

Crowded names

0

No stored data for this selection.

Exits below 5%

0

No stored data for this selection.

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