SUMCO (3436): the annual securities report, read in English
What this publication has read from SUMCO's EDINET filings, with the ownership table and buyback returns as the documents print them. Figures are copied, not estimated; every row links to its source.
| Legal name | SUMCO CORPORATION · 株式会社ＳＵＭＣＯ |
|---|---|
| Securities code | 3436 (Tokyo Stock Exchange) |
| EDINET code | E02103 |
| Market as filed | 東京証券取引所(プライム市場) |
| Latest annual report | year ended 2025-12-31, submitted 2026-03-26 — latest annual securities report on EDINET |
| Read here | 4 of 112 fragments · filter the list |
Fragments on SUMCO
- What changed in the 22 business risks, March 2026 vs 2025Business and other risks2026-10-18
Sumco's March 2026 report keeps 22 risk headings in order; 35 of 103 sentences change, 17 by stock substitutions; one market-share sentence is gone.
- Average salary, age, tenure and headcount: whose numbersEmployees in Japanese securities reports2026-10-06
Sumco's 2025 report: average salary ¥6,411,907, age 42.7, tenure 14.0 years are the 5,065 parent staff's; group headcount 9,714 plus 769 temporary.
- What the segment note shows: sales by region, one customerSegment information in Japanese securities reports2026-09-23
Sumco's 2025 report prints one segment; the note gives sales by six regions (Taiwan ¥153,232 million of ¥409,670 million) and one customer at 27.0 percent.
- Why operating profit fell 96.4 percent in 2025Wafers2026-07-28
Sumco's own four-part bridge for the 96.4 percent fall in 2025 operating profit: depreciation gets a line of its own, volume and price share one.
Sections of the report not yet read here: Facilities, Research and development activities, Officers' remuneration, Dividend policy, Treasury stock, Cross-shareholdings, Major customers, Management indicators and targets, Audit, Major shareholders, Shareholder composition.
Who holds the shares
Foreign ownership 46.75% of trading units (foreign corporations and institutions 1,630,614 + foreign individuals 4,932 over the printed total 3,498,720), from the ownership table of the annual securities report for the year ended 2025-12-31, submitted 2026-03-26 (EDINET S100XRR5). That places the company at the 97.4th percentile of the 3,167 listed filers in the foreign-ownership dataset (higher = more foreign-held). The seven categories reconcile to the printed total.
| Holder category (所有者別状況) | Trading units |
|---|---|
| Government and local authorities 政府及び地方公共団体 | — |
| Financial institutions 金融機関 | 1,104,972 |
| Securities firms 金融商品取引業者 | 77,166 |
| Other domestic corporations その他の法人 | 46,682 |
| Foreign corporations and institutions 外国法人等－個人以外 | 1,630,614 |
| Foreign individuals 外国法人等－個人 | 4,932 |
| Individuals and others 個人その他 | 634,354 |
| Total as printed | 3,498,720 |
Share buybacks
No monthly buyback return (自己株券買付状況報告書) for this company appears in the buyback dataset (reporting months July 2026 to September 2026).
Company pages are assembled from the datasets and fragments on this site and are rebuilt whenever either changes. They contain no price, rating or recommendation. How this is made · Corrections.