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Hamamatsu Photonics (6965): large-holder filings
In the last 12 months, large holders reported 2 changes to stakes of 5% or more.
Stakes raised / cut 2 / 012 months
Large holders filing 112 months
Last close ¥2,1172 Nov 2026
One-year change +22.3% 4 disclosed buys and sales on record since 19 September 2025. A large holder files with EDINET when a stake of 5% or more moves by a point or more; a change has a value once it can be priced.
Latest disclosures
Disclosed Filed by Type Amount Traded
5 Aug 2026 BlackRock Japan Co., Ltd.5% holder (Japan)
Buy ¥8B ($50M)
31 Jul 2026
3 Dec 2025 BlackRock Japan Co., Ltd.5% holder (Japan)
Buy Not valued
28 Nov 2025
7 Oct 2025 Goldman Sachs Japan Co.,Ltd.5% holder (Japan)
Sale ¥6.7B ($45.3M)
30 Sep 2025
19 Sep 2025 Sumitomo Mitsui Trust Asset Management Co.,Ltd.5% holder (Japan)
Buy ¥6B ($41M)
15 Sep 2025
Columns are written from public disclosures: House and Senate periodic transaction reports, SEC Form 4, Japan’s EDINET large-holding reports and Taiwan’s insider registers and market data (TWSE, TPEx, MOPS and the central bank, with history from FinMind). Stock pages add SEC 13F fund holdings and company financials, analysts’ figures from Financial Modeling Prep and Finnhub, and lobbying and federal contract records from the Senate and USAspending.gov. Amounts are disclosed as ranges, so the figures are estimates. Nothing here is investment advice.
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