Overview
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Rigaku Holdings Corporation

Rigaku Holdings Corporation is a specialized manufacturer of scientific instruments, developing, manufacturing, selling, and servicing X-ray analytical and measurement equipment—including X-ray diffraction (XRD), X-ray fluorescence (XRF), X-ray imaging, and semiconductor process control instruments—for academia and industries worldwide. The group operates across three business segments: general-purpose analytical instruments, semiconductor process control instruments, and parts & services, serving customers in over 90 countries. Its competitive strengths lie in proprietary component technologies (X-ray generators, optical elements, detectors, and analytical software) developed in-house by approximately 300 highly specialized X-ray engineers, enabling superior product performance and differentiation.

Market Cap
¥313B
US$1.99B
EV
¥352B
US$2.25B
Stock¥1,381▼-1.85%
US$1 = ¥156.80 (2026-10-23)
LTM EV/EBITDA
18.5
x
LTM EV/EBIT
26.0
x
LTM PER
33.8
x
LTM PBR
3.5
x
Stock vs TOPIX (1Y, base=100)vs TOPIX ▲+20.5%pt
1001
Oct 24, 25 – Oct 23, 26StockTOPIX
1Aug 10, 26Q2 FY2026/12 earnings announced
MC → EV Bridge
313BUS$1.99BMarket Cap66.9BUS$427M+ Debt27.3BUS$174M− Cash0.00BUS$0.00M− Inv. Sec.352BUS$2.25BEV
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Performance & Balance
Revenue 5Y (¥B)
62.7US$400M'22/1279.9US$509M'23/1290.7US$578M'24/1294.2US$601M'25/12
EBITDA 5Y (¥B)
23.2US$148M'24/1221.8US$139M'25/12
Net Income 5Y (¥B)
0.91US$5.81M'22/1210.9US$69.5M'23/1213.6US$86.8M'24/1211.4US$72.7M'25/12
Capital Structure
57%
43%
EquityD/E 0.75xDebt
Liquidity vs Debt 5Y (¥B)▼ Net Debt
CashInv. Sec.Debt
'22/12'23/1228.0US$179M61.6US$393M'24/1224.3US$155M62.2US$396M'25/12
Shareholders
Top 10 hold 67.2%
1
Atom Investment, L.P.
27.27%
2
Akira SHIMURA
12.13%
3
STATE STREET BANK AND TRUST COMPANY 505001 (Standing Proxy: Mizuho Bank, Ltd.)
8.53%
4
The Master Trust Bank of Japan, Ltd. (Trust Account)
5.45%
5
MORGAN STANLEY & CO. LLC Matthew Berke (Standing Proxy: Morgan Stanley MUFG Securities Co., Ltd.)
4.33%
6
HSBC - FUND SERVICES CLIENTS A/C 500 (Standing Proxy: The Hongkong and Shanghai Banking Corporation Limited, Tokyo Branch)
2.41%
7
MSCO CUSTOMER SECURITIES (Standing Proxy: Morgan Stanley MUFG Securities Co., Ltd.)
2.31%
8
NORTHERN TRUSTCO.(AVFC) RE NON TREATY CLIENTS ACCOUNT (Standing Proxy: The Hongkong and Shanghai Banking Corporation Limited, Tokyo Branch)
2.05%
9
INDUS JAPAN LONG ONLY MASTER FUND, LTD (Standing Proxy: The Hongkong and Shanghai Banking Corporation Limited, Tokyo Branch)
1.37%
10
STATE STREET BANK AND TRUST COMPANY 505103 (Standing Proxy: Mizuho Bank, Ltd.)
1.34%
Management
11 officers
Jun KAWAKAMI
Representative Director, President
Apr 1987 Joined Booz Allen Hamilton Japan K.K. Apr 1999 North Asia Regional General Manager, Engine Services, GE Apr 2000 Director, General Electric Japan K.K. Apr 2000 Director, GE Engine Services Japan K.K. Aug 2003 Sales & Marketing General Manager, GE Medical Systems International Asia Services Oct 2004 Managing Director, GE Yokogawa Medical Systems, Ltd. (now GE Healthcare Japan Corporation) Apr 2009 Director and Senior Vice President, GE Yokogawa Medical Systems, Ltd. Aug 2009 Director and Senior Vice President, GE Healthcare Japan Corporation Jun 2011 Representative Director, President and CEO, GE Healthcare Japan Corporation Director, Nihon Medi-Physics Co., Ltd. Jul 2017 Representative Director, President and CEO, Arteria Networks Corporation Nov 2017 Representative Director, Tsunagu Net Communications Inc. Apr 2020 Representative Partner, JK & Company LLC Apr 2020 Senior Advisor, Carlyle Japan LLC Mar 2021 Non-Executive Director, Rigaku Corporation Mar 2021 Non-Executive Director, the Company Feb 2023 Representative Director, President, Rigaku Corporation (current) Representative Director, President and CEO, the Company (current)
1963-06-12
Kiyoshi OGATA
Director, Vice President
Apr 1986 Joined Hitachi, Ltd. Jan 2009 Joined Rigaku Corporation Apr 2015 Executive Officer, Rigaku Corporation Apr 2016 Managing Executive Officer, Rigaku Corporation Jun 2017 Director, Managing Executive Officer, Rigaku Corporation Apr 2019 Director, Senior Managing Executive Officer, Rigaku Corporation Mar 2021 Director, the Company Oct 2021 Director, Senior Managing Executive Officer, the Company Feb 2023 Director and Vice President, Rigaku Corporation (current) Jul 2023 Director and Vice President, the Company (current); Global Product Unit Leader (current)
1956-12-10
Takaomi TOMIOKA
Outside Director
Apr 1985 Joined The Nippon Credit Bank, Ltd. (now SBI Shinsei Bank, Limited) Dec 2003 Director, Carlyle Japan LLC Jan 2005 Outside Director, AZ Electronic Materials K.K. (now Merck K.K.) Oct 2005 Outside Director, Sionogi Qualicaps Co., Ltd. (now Qualicaps Co., Ltd.) Jan 2007 Managing Director, Carlyle Japan LLC Jan 2008 Partner, Carlyle Japan LLC Apr 2009 Outside Director, Moncler Japan K.K. Apr 2012 Outside Director, Solast Co., Ltd. Aug 2014 Outside Director, Sansei Iyaku Co., Ltd. Jul 2016 Outside Director, Kyushu GGC Co., Ltd. (now Meisui Bijin Factory Co., Ltd.) May 2019 Non-Executive Director, Orion Beer Co., Ltd. (current) Jan 2020 Deputy Representative, Carlyle Japan LLC Mar 2021 Outside Director, the Company (current) Mar 2021 Non-Executive Director, Rigaku Corporation Sep 2021 Non-Executive Director, AOI TYO Holdings Inc. (now KANAMEL Inc.) Jun 2023 Japan Co-Head and Managing Director, Carlyle Japan LLC (current) Jun 2023 Non-Executive Director, Iwasaki Electric Co., Ltd. (current) Sep 2024 Non-Executive Director, Nippon Kentucky Fried Chicken Co., Ltd. (current)
1961-10-23
Andrea KNOBLICH
Outside Director
Jul 1997 Joined The Mitsubishi Trust and Banking Corporation (London Branch) Jan 2000 Joined Morgan Stanley Dean Witter Japan Limited (Tokyo Branch) May 2001 Joined Deutsche Securities Limited (Tokyo Branch) Sep 2002 Joined Shinsei Bank, Limited (now SBI Shinsei Bank, Limited) Sep 2013 Joined The Bank of New York Mellon Corporation (Singapore Branch) Apr 2019 Director and Markets APAC COO/CAO, The Bank of New York Mellon Corporation Jun 2021 Outside Director, the Company (current) Non-Executive Director, Rigaku Corporation
1973-08-03
Michiaki TAGUCHI
Outside Director
Apr 1981 Joined Texas Instruments Japan Limited (now Texas Instruments Japan LLC) Apr 2013 Representative Director and Head of Sales Division, Texas Instruments Japan Limited Apr 2022 Representative for Japan, Vayyar Imaging Japan LLC Sep 2023 Outside Director, the Company (current) Jan 2025 Outside Director, Kyoden Co., Ltd. (current)
1958-09-26
Takako EBATA
Outside Director
Apr 1982 Joined Fujitsu Limited Jul 1992 Joined McKinsey & Company, Inc. Feb 1998 Director, CFO and Head of Marketing, Amgen K.K. Jun 2005 Project Associate Professor, The University of Tokyo Jun 2006 Outside Director, Astellas Pharma Inc. Aug 2009 Member, House of Representatives (Committee on Education, Culture, Sports, Science and Technology; Committee Director, Finance and Financial Affairs; Budget Committee; Health, Labour and Welfare Committee; Special Committee on Integrated Reform of Social Security and Taxation; Deputy Director, Secretariat of the Tax Research Commission) Mar 2012 Outside Director, SymBio Pharmaceuticals Limited Apr 2016 Head of Corporate Government Affairs & Policy, Johnson & Johnson K.K. Group Mar 2021 Outside Director and Chair of Nomination and Compensation Committee, Alpha Purchase Inc. (current) Jan 2022 Senior Advisor, Public Policy, Public Policy & Legal Division, Microsoft Japan Co., Ltd. Jun 2022 Outside Director (Audit and Supervisory Committee Member), M3, Inc. (current) Sep 2023 Outside Director, the Company (current) Mar 2024 Director, The U.S.-Japan Council – Japan (current) Aug 2024 Director, Tokyo District Lions (current)
1959-12-22
Ichiro SASAKI
Outside Director
Apr 1983 Joined Brother Industries, Ltd. Jan 2005 President, Brother UK Ltd. Apr 2008 General Manager, NID Development Division, Brother Industries, Ltd. Apr 2009 Executive Officer, Brother Industries, Ltd. Apr 2013 Managing Executive Officer, Brother Industries, Ltd. Jun 2014 Director, Managing Executive Officer, Brother Industries, Ltd. Jun 2016 Representative Director, Managing Executive Officer, Brother Industries, Ltd. Apr 2017 Representative Director, Senior Managing Executive Officer, Brother Industries, Ltd. Jun 2018 Representative Director, President, Brother Industries, Ltd. Jun 2024 Director and Vice Chairman, Brother Industries, Ltd. May 2025 Chairman, Chubu Marketing Association (current) Jun 2025 Advisor, Brother Industries, Ltd. (current) Jun 2025 Outside Director, Mitsubishi Materials Corporation (current) Mar 2026 Outside Director, the Company
1957-04-30
Tomohiro OKAYAMA
Audit & Supervisory Board Member
Apr 1982 Joined Canon Inc. Jul 2008 General Manager, Accounting, Image Communication Business Division, Canon Inc. Dec 2010 Seconded to Canon Marketing Asia Group and Canon China Co., Ltd. as Vice President and General Manager, Accounting Division Apr 2018 Executive Officer, Canon Inc. Jan 2023 In charge of Corporate Planning Division, Canon China Co., Ltd. Mar 2024 Full-time Audit & Supervisory Board Member, Canon Inc. (current; scheduled to retire Mar 2026) Mar 2026 Full-time Audit & Supervisory Board Member, the Company
1960-03-24
Hidetaka KIYOTA
Audit & Supervisory Board Member
Apr 1985 Joined Matsushita Graphic Communication Systems, Inc. (now Panasonic Holdings Corporation) Mar 2010 General Manager, Accounting Group 6, AVC Networks Company, Panasonic Holdings Corporation Apr 2015 General Manager, Accounting & Financial Planning Division, Connected Solutions Company, Panasonic Holdings Corporation Sep 2019 Full-time Audit & Supervisory Officer, Appliances Company, Panasonic Holdings Corporation Oct 2021 Full-time Audit & Supervisory Officer, Life Appliances Company and Air Quality & Air Conditioning Company, Panasonic Holdings Corporation Audit & Supervisory Board Member (part-time), Panasonic Ecosystems Co., Ltd. (current; scheduled to retire Mar 2026) Jul 2024 Full-time Audit & Supervisory Officer, Air Quality & Air Conditioning Company and China & Northeast Asia Company, Panasonic Holdings Corporation (current; scheduled to retire Mar 2026) Mar 2026 Full-time Audit & Supervisory Board Member, the Company
1962-12-14
Tomoyoshi MATSUO
Audit & Supervisory Board Member (Part-time)
Apr 1983 Joined The Mitsubishi Bank, Limited (now MUFG Bank, Ltd.) Sep 1999 Seconded to Tokyo Mitsubishi Securities Co., Ltd. (now Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.) May 2010 Transferred to Mitsubishi UFJ Morgan Stanley Securities Co., Ltd., Executive Officer Jun 2014 Transferred to MUS Business Service Co., Ltd., Managing Executive Officer Dec 2020 Audit & Supervisory Board Member, Richica Inc. Sep 2023 Part-time Audit & Supervisory Board Member, the Company (current) Jun 2025 Audit & Supervisory Board Member, Orizuru Therapeutics Inc. (current)
1960-08-19
Yutaka KANZAWA
Audit & Supervisory Board Member (Part-time)
Apr 1980 Joined The Nippon Credit Bank, Ltd. (now SBI Shinsei Bank, Limited) Dec 1998 Joined Fujitsu Limited Jun 2000 Joined Shinsei Bank, Limited (now SBI Shinsei Bank, Limited) Feb 2003 Seconded to Advantage Insurance Service Inc. (now Advantage Risk Management Co., Ltd.) as General Manager, Sales Promotion Department Sep 2004 Joined Advantage Insurance Service Inc. as General Manager, Sales Promotion Department Feb 2006 General Manager, EAP Business Division, Advantage Insurance Service Inc. Sep 2008 Vice President and Director, Human Frontier Inc. (now Hoken Doujin Frontier Co., Ltd.) Oct 2009 President and Representative Director, Human Frontier Inc. Non-Executive Director, HA Group Inc. (now MBK Wellness Holdings Inc.) Jul 2018 Chairman, Human Frontier Inc. (now Hoken Doujin Frontier Co., Ltd.) Jul 2019 Director (Audit and Supervisory Committee Member), Human Associates Holdings Inc. (now MBK Wellness Holdings Inc.) Mar 2021 Audit & Supervisory Board Member, the Company Audit & Supervisory Board Member, Rigaku Corporation Jun 2021 Audit & Supervisory Board Member, Rigaku Logistics Co., Ltd. Mar 2024 Part-time Audit & Supervisory Board Member, the Company (current)
1956-07-16
Large Shareholding Reports
Onto Innovation Japan K.K.
2026-10-02
26.98%
Columbia Management Investment Advisers, LLC
2026-09-09
10.52%→11.48%
Akira SHIMURA
2026-09-08
12.13%→9.48%
Annual report (as of 2026-06-30): 12.13%
Akira Shimura
2026-08-27
12.14%→12.13%
Annual report (as of 2026-06-30): 12.13%
Columbia Management Investment Advisers, LLC
2026-07-06
8.37%→9.37%
Atom Investment, L.P.
2026-06-29
28.95%→27.28%
Annual report (as of 2026-06-30): 27.27%
Columbia Management Investment Advisers, LLC
2026-06-19
8.37%
Akira SHIMURA
2026-06-08
12.09%→12.14%
Annual report (as of 2026-06-30): 12.13%
Atom Investment, L.P.
2026-06-08
42.02%→28.95%
Annual report (as of 2026-06-30): 27.27%
Atom Investment, L.P.
2026-04-24
42.23%→42.02%
Annual report (as of 2026-06-30): 27.27%
Onto Innovation Inc.
2026-04-22
27.00%
Disclosures
No disclosures
Primary Source Filings
EDINET
2026-10-02
Large Shareholding Report
EDINET
2026-09-09
Large Shareholding Report
EDINET
2026-09-08
Large Shareholding Report
EDINET
2026-08-27
Large Shareholding Report
EDINET
2026-08-14
Semi-Annual Securities Report
Period: Jan 2026 – Dec 2026
EDINET
2026-07-06
Large Shareholding Report
EDINET
2026-06-29
Large Shareholding Report
EDINET
2026-06-19
Large Shareholding Report
EDINET
2026-06-08
Large Shareholding Report
EDINET
2026-06-08
Large Shareholding Report
TDnet
2026-05-13
Q1 Earnings Flash
FY ending Dec 2026
EDINET
2026-04-24
Large Shareholding Report
EDINET
2026-04-22
Large Shareholding Report
EDINET
2026-03-24
Annual Securities Report
Period: Jan 2025 – Dec 2025
TDnet
2025-11-14
Q3 Earnings Flash
FY ending Dec 2025
TDnet
2025-11-11
Q3 Earnings Flash
FY ending Dec 2025
EDINET
2025-08-14
Semi-Annual Securities Report
Period: Jan 2025 – Dec 2025
TDnet
2025-05-15
Q1 Earnings Flash
FY ending Dec 2025
EDINET
2025-03-27
Annual Securities Report
Period: Jan 2024 – Dec 2024
EDINETAmended
2024-10-17
Amended Securities Registration Statement
EDINETAmended
2024-10-09
Amended Securities Registration Statement
EDINET
2024-09-20
Securities Registration Statement
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