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Harmonic Drive Systems Inc. — Investor Relations & Filings

Ticker · 6324 ISIN · JP3765150002 LEI · 353800XFIX2EUARGOE85 T Manufacturing
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Filings indexed 97 across all filing types
Latest filing 2026-04-24 Regulatory Filings
Country JP Japan
Listing T 6324

About Harmonic Drive Systems Inc.

https://www.hds.co.jp/english/

Harmonic Drive Systems Inc. is a manufacturer specializing in high-precision motion control products. The company's core technology is the HarmonicDrive®, a proprietary strain wave gear speed reducer known for its characteristics of zero backlash, high torque capacity, and compact, lightweight design. Its product portfolio includes precision speed reducers, gearheads for servo motors, and mechatronic products such as rotary and linear servo actuators. These components are utilized in applications demanding precise positioning and motion control, including industrial robots, collaborative robots (co-bots), semiconductor manufacturing equipment, medical devices, and aerospace systems.

Recent filings

Filing Released Lang Actions
2026年３月期通期業績予想の修正に関するお知らせ
Regulatory Filings
2026-04-24 Japanese
確認書
Regulatory Filings Classification · 100% confidence The document is a 'Confirmation Letter' (確認書) filed under the Financial Instruments and Exchange Act, specifically certifying the accuracy of a semi-annual report. According to the 'Certification Rule', documents that are primarily officer certifications or attestations, even if they reference a specific report type, should be classified as Regulatory Filings (RNS) rather than the report itself. The document contains no financial statements or substantive financial data. H1 38
2025-11-13 Japanese
半期報告書－第38期(2025/04/01－2026/03/31)
Interim / Quarterly Report Classification · 100% confidence The document is a 'Semi-Annual Report' (半期報告書) filed by Harmonic Drive Systems Inc. with the Kanto Local Finance Bureau on November 13, 2025. It covers the interim accounting period from April 1, 2025, to September 30, 2025. It contains detailed financial statements, including the balance sheet, and management's analysis of financial results and business conditions. This fits the definition of an Interim/Quarterly Report (IR) as it provides comprehensive financial data for a period shorter than a full fiscal year. H1 2026
2025-11-13 Japanese
確認書
Regulatory Filings Classification · 100% confidence The document is a 'Confirmation Letter' (Kakunin-sho) filed under the Financial Instruments and Exchange Act, which serves as an officer certification regarding the accuracy of a previously filed semi-annual report. According to the 'CERTIFICATION RULE', documents that are primarily officer certifications or attestations should be classified as Regulatory Filings (RNS), even if they reference a specific report type like an interim/semi-annual report. H1 37
2025-11-12 Japanese
訂正半期報告書－第37期(2024/04/01－2025/03/31)
Interim / Quarterly Report Classification · 100% confidence The document is a 'Hanki Hokokusho' (Semi-Annual Report) filed by Harmonic Drive Systems Inc. with the Kanto Local Finance Bureau. It contains detailed financial statements, management analysis, and audit review information for the interim period ending September 30, 2024. As it is a comprehensive financial report for a period shorter than a full fiscal year, it is classified as an Interim/Quarterly Report. H1 2025
2025-11-12 Japanese
確認書
Audit Report / Information Classification · 95% confidence The document is extremely short (598 characters) and contains a header section typical of Japanese regulatory filings, specifically mentioning '【提出書類】確認書' (Filing Document: Confirmation Document) and referencing the Financial Instruments and Exchange Act ('金融商品取引法'). The core content confirms that the Representative Director has verified the contents of the '有価証券報告書の訂正報告書' (Correction Report for the Annual Securities Report) for the fiscal year ending March 31, 2025, are appropriate. Since this is a confirmation document related to a previously filed annual report correction, and it is not the full report itself, it functions as a regulatory confirmation or supplementary filing. Given the options, this type of specific confirmation document related to statutory filings that doesn't fit the main categories (10-K, IR, ER) is best categorized as a general Regulatory Filing (RNS) or potentially an Audit Report/Information (AR) if it were an audit confirmation, but '確認書' (Confirmation Document) strongly suggests a mandatory regulatory submission. Since 'RNS' is the general fallback for miscellaneous regulatory filings, and this is a specific confirmation rather than the main report, RNS is the most appropriate fit, although it is highly specific to Japanese filings. Given the context of confirming the accuracy of a statutory filing, it is a regulatory submission, making RNS the best general fit among the provided codes for a non-standard, short regulatory confirmation. FY 2025
2025-07-18 Japanese

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