Overview
Glass and Ceramics Products

NGK Corporation

NGK Insulators is a global ceramics-based manufacturer operating across three core segments: Environment (automotive exhaust purification components, sensors, and industrial ceramics), Digital Society (semiconductor manufacturing equipment components, electronic products, beryllium copper products, and composite wafers), and Energy & Industry (NAS® batteries for grid-scale energy storage, and power transmission insulators). The company leverages its advanced ceramic and materials technology to serve automotive OEMs, semiconductor manufacturers, and electric utilities worldwide. Key competitive strengths include world-leading market share in automotive honeycomb substrates, dominant position in NAS® battery energy storage systems, and growing presence in next-generation semiconductor and IoT device materials such as the ultra-thin EnerCera lithium-ion battery.

Market Cap
¥1,286B
US$8.20B
EV
¥1,141B
US$7.28B
Stock¥4,570▼-2.83%
US$1 = ¥156.80 (2026-10-23)
LTM EV/EBITDA
7.0
x
LTM EV/EBIT
10.9
x
LTM PER
18.0
x
LTM PBR
1.6
x
Stock vs TOPIX (1Y, base=100)vs TOPIX ▲+55.4%pt
10012
Oct 24, 25 – Oct 23, 26StockTOPIX
1Dec 2, 25Earnings: FY profit upgrade + dividend raise
2Jul 31, 26Q1 FY2027/03 earnings announced
MC → EV Bridge
1,286BUS$8.20BMarket Cap231BUS$1.48B+ Debt187BUS$1.19B− Cash198BUS$1.26B− Inv. Sec.8.90BUS$56.7M+ NCI1,141BUS$7.28BEV
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Performance & Balance
Revenue 5Y (¥B)
510US$3.26B'22/3559US$3.57B'23/3579US$3.69B'24/3620US$3.95B'25/3670US$4.27B'26/3
EBITDA 5Y (¥B)
133US$847M'22/3120US$768M'23/3123US$786M'24/3138US$883M'25/3152US$972M'26/3
Net Income 5Y (¥B)
70.9US$452M'22/355.0US$351M'23/340.6US$259M'24/354.9US$350M'25/359.9US$382M'26/3
Capital Structure
78%
22%
EquityD/E 0.29xDebt
Liquidity vs Debt 5Y (¥B)▲ Net Cash
CashInv. Sec.Debt
198US$1.26B252US$1.61B'22/3227US$1.45B253US$1.62B'23/3269US$1.72B259US$1.65B'24/3267US$1.70B252US$1.61B'25/3283US$1.81B245US$1.56B'26/3
Shareholders
Top 10 hold 46.6%
1
The Master Trust Bank of Japan, Ltd. (Trust Account)
16.70%
2
Meiji Yasuda Life Insurance Company
7.54%
3
Custody Bank of Japan, Ltd. (Trust Account)
6.71%
4
National Mutual Insurance Federation of Agricultural Cooperatives
3.36%
5
The Dai-ichi Life Insurance Company, Limited
3.28%
6
MUFG Bank, Ltd.
2.50%
7
BNYM AS AGT/CLTS 10 PERCENT (Standing Proxy: MUFG Bank, Ltd.)
1.98%
8
STATE STREET BANK AND TRUST COMPANY 505001 (Standing Proxy: Mizuho Bank, Ltd.)
1.73%
9
Aioi Nissay Dowa Insurance Co., Ltd.
1.52%
10
JP MORGAN CHASE BANK 385781 (Standing Proxy: Mizuho Bank, Ltd.)
1.31%
Management
14 officers
Taku OSHIMA
Representative Director, Chairman
Mar 1980 Joined the Company Apr 2004 General Manager, NAS Business Division, Power Business Headquarters Jun 2007 Executive Officer Jun 2011 Managing Executive Officer Jun 2014 Representative Director, President Jun 2020 Outside Director, Central Japan Railway Company (current) Apr 2021 Representative Director, Chairman (current) May 2021 Chairman, Aichi Association of Corporate Executives Jun 2021 Outside Director, Toho Gas Co., Ltd. (current) Jun 2024 Outside Director, Nomura Holdings, Inc. (current)
1956-07-14
Shigeru KOBAYASHI
Representative Director, President
Mar 1983 Joined the Company Apr 2016 General Manager, Insulator Business Division, Power Business Headquarters Jun 2016 Executive Officer Jun 2018 Managing Executive Officer Jun 2020 Director, Senior Managing Executive Officer Apr 2021 Representative Director, President (current)
1961-03-23
Jun MORI
Representative Director, Vice President
Apr 1988 Joined the Company Apr 2019 General Manager, Manufacturing Division, Ceramics Business Headquarters Jun 2019 Executive Officer Jun 2021 Managing Executive Officer Jun 2024 Senior Managing Executive Officer Jun 2025 Director, Senior Managing Executive Officer Jun 2026 Representative Director, Vice President
1964-04-26
Hideaki SHINDO
Director, Senior Managing Executive Officer
Apr 1988 Joined the Company Apr 2013 General Manager, Finance Department Jun 2018 Executive Officer Jun 2021 Director, Managing Executive Officer Jun 2024 Director, Senior Managing Executive Officer (current)
1964-11-01
Mayumi INAGAKI
Director, Managing Executive Officer
Apr 1988 Joined the Company Jun 2015 General Manager, Legal Department Jun 2020 Executive Officer Jun 2024 Director, Managing Executive Officer (current)
1964-05-18
Takao ONISHI
Director, Managing Executive Officer
Apr 1990 Joined the Company Apr 2019 General Manager, Electronic Components Business Division, Electronics Business Headquarters Jun 2021 Executive Officer Jun 2024 Managing Executive Officer Jun 2026 Director, Managing Executive Officer
1966-11-01
Emiko HAMADA
Director
Apr 1984 Joined Taiyo Yuden Co., Ltd. Dec 2001 Department Manager, R&D Department, Technology Quality Assurance Division, Technology Group, Taiyo Yuden Co., Ltd. Sep 2003 Chief Researcher, Basic Development Department, Central Research Institute, Technology Group, Taiyo Yuden Co., Ltd. Nov 2008 Associate Professor, Industry-Academia-Government Collaboration Center, Nagoya Institute of Technology Apr 2011 Professor, Industry-Academia-Government Collaboration Center, and Professor, Graduate School of Engineering (Industrial Strategy Engineering), Nagoya Institute of Technology Apr 2012 Professor, Community Innovation Education and Research Center, Nagoya Institute of Technology May 2015 Program Officer, Program Area 3, Research Result Optimization Support Program, Japan Science and Technology Agency Aug 2016 Visiting Professor, Nagoya University (now Nagoya University, Tokai National Higher Education and Research System) Jun 2017 Director of the Company (current) Jun 2019 Outside Director, Taiyo Yuden Co., Ltd. (current)
1958-11-23
Noriko KAWAKAMI
Director
Apr 1982 Joined Tokyo Shibaura Electric Co., Ltd. (now Toshiba Corporation) Apr 2003 Chief Staff, Power Electronics Department, Toshiba Corporation Oct 2003 Seconded to Toshiba Mitsubishi-Electric Industrial Systems Corporation (now TMEIC Corporation) Oct 2005 Transferred to TMEIC Corporation Oct 2015 Chief Engineer, Power Electronics Systems Business Division, TMEIC Corporation (current) Jan 2018 Fellow, Institute of Electrical and Electronics Engineers (IEEE) Jun 2024 Director of the Company (current) Jun 2026 Outside Director, Daido Steel Co., Ltd. (scheduled) Jun 2026 Outside Director, SANKYU Inc. (scheduled)
1959-06-17
Kengo MIYAMOTO
Director
Apr 1995 Legal Training and Research Institute, Supreme Court of Japan Apr 1997 Registered as attorney (Tokyo Bar Association); joined Kamano Sogo Law Office Sep 2002 Registered with the New York State Bar Association (USA) Oct 2002 Joined Blake Dawson (Australia) (now Ashurst Law Office, Foreign Law Joint Enterprise) Jan 2004 Registered with the Law Society of New South Wales (Australia) Oct 2004 Joined Ashurst Tokyo Law Office (now Ashurst Law Office, Foreign Law Joint Enterprise) Apr 2009 Representative Attorney, Miyamoto & Yoshida Law Office (now Miyamoto International Law Office) (current) Jun 2024 Director of the Company (current)
1967-07-08
Naoya YAGI
Full-time Audit & Supervisory Board Member
Apr 1989 Joined The Industrial Bank of Japan, Ltd. (now Mizuho Bank, Ltd.) Jul 1999 Joined the Company Jun 2019 General Manager, Operational Audit Department Jun 2023 Full-time Audit & Supervisory Board Member (current)
1965-06-08
Koji HASEGAWA
Full-time Audit & Supervisory Board Member
Apr 1987 Joined the Company Apr 2020 President and Director, NGK CERAMICS (THAILAND) CO., LTD. Jun 2025 Full-time Audit & Supervisory Board Member (current)
1963-08-27
Hiroshi SAKUMA
Director
Apr 1980 Joined Mitsubishi Corporation May 2004 President, Diamond Generating Corporation (USA) Apr 2007 Unit Manager, Overseas Power Business Unit, Heavy Electrical Machinery Division, Mitsubishi Corporation Apr 2010 Deputy General Manager, New Energy & Power Business Division, and Unit Manager, Overseas Power Business Unit, Mitsubishi Corporation Apr 2011 Executive Officer, Deputy General Manager, New Energy & Power Business Division, and Unit Manager, Overseas Power Business Unit, Mitsubishi Corporation Apr 2012 Executive Officer, General Manager, New Energy & Power Business Division, Mitsubishi Corporation Apr 2014 Managing Executive Officer, CEO, Global Environment & Infrastructure Business Group, Mitsubishi Corporation Jun 2017 Outside Director, Chiyoda Corporation Apr 2019 Senior Adviser, Mitsubishi Corporation Mar 2020 Member of the Management Board and Chief Cooperation & International Officer, N.V. Eneco (Netherlands) Jun 2024 Director of the Company (current)
1956-06-02
Masayoshi SAKAGUCHI
Audit & Supervisory Board Member
Apr 1980 Joined the National Police Agency Feb 1999 Commander, First Regional Headquarters, Metropolitan Police Department Sep 2001 Chief, Akita Prefectural Police Jan 2003 Director General, Criminal Investigation Department, Osaka Prefectural Police Oct 2011 Chief, Osaka Prefectural Police Jan 2013 Director General, Secretariat, National Police Agency Jan 2015 Deputy Commissioner General, National Police Agency Aug 2016 Commissioner General, National Police Agency May 2018 Special Adviser, Nippon Life Insurance Company Jun 2019 Audit & Supervisory Board Member of the Company (current) Jun 2019 Vice President and Representative Director, Japan Automobile Federation (JAF) Jun 2022 President and Representative Director, Japan Automobile Federation (JAF) (current)
1957-08-18
Tsuyoshi WATANABE
Audit & Supervisory Board Member
Apr 1982 Joined The Mitsubishi Bank, Ltd. (now MUFG Bank, Ltd.) Jun 2009 Executive Officer, The Bank of Tokyo-Mitsubishi UFJ, Ltd. (now MUFG Bank, Ltd.) May 2012 Managing Executive Officer, The Bank of Tokyo-Mitsubishi UFJ, Ltd. Jul 2013 Managing Executive Officer, Mitsubishi UFJ Financial Group, Inc. Jul 2016 Senior Managing Executive Officer, Nidec Corporation Sep 2020 Representative Director and Chairman, MST Insurance Service Co., Ltd. Jun 2021 Outside Director, Mitsubishi HC Capital Inc. Jun 2022 Full-time Outside Audit & Supervisory Board Member, Mitsubishi Gas Chemical Company, Inc. Jun 2026 Audit & Supervisory Board Member of the Company
1958-09-19
Large Shareholding Reports
BlackRock Japan Co., Ltd.
2026-05-22
1.70%→1.74%
The Dai-ichi Life Insurance Company, Limited
2026-02-19
5.19%→3.24%
Annual report (as of 2026-03-31): 3.28%
BlackRock Japan Co., Ltd.
2026-01-06
1.70%
Amova Asset Management Co., Ltd.
2025-09-19
2.70%→2.93%
Disclosures
No disclosures
Primary Source Filings
TDnet
2026-08-06
Q1 Earnings Flash
FY ending Mar 2027
TDnet
2026-07-30
Q1 Earnings Flash
FY ending Mar 2027
EDINET
2026-06-22
Annual Securities Report
Period: Apr 2025 – Mar 2026
EDINET
2026-05-28
中期経営計画
EDINET
2026-05-22
Large Shareholding Report
EDINET
2026-02-19
Large Shareholding Report
TDnet
2026-02-05
Q3 Earnings Flash
FY ending Mar 2026
TDnet
2026-01-29
Q3 Earnings Flash
FY ending Mar 2026
EDINET
2026-01-06
Large Shareholding Report
EDINET
2025-11-06
Semi-Annual Securities Report
Period: Apr 2025 – Mar 2026
EDINET
2025-09-19
Large Shareholding Report
TDnet
2025-08-07
Q1 Earnings Flash
FY ending Mar 2026
TDnet
2025-07-31
Q1 Earnings Flash
FY ending Mar 2026
EDINET
2025-06-23
Annual Securities Report
Period: Apr 2024 – Mar 2025
TDnet
2025-02-07
Q3 Earnings Flash
FY ending Mar 2025
TDnet
2025-01-31
Q3 Earnings Flash
FY ending Mar 2025
EDINET
2024-11-08
Semi-Annual Securities Report
Period: Apr 2024 – Mar 2025
TDnet
2024-08-02
Q1 Earnings Flash
FY ending Mar 2025
EDINETAmended
2024-07-29
Amended Securities Registration Statement
TDnet
2024-07-29
Q1 Earnings Flash
FY ending Mar 2025
EDINET
2024-07-03
Securities Registration Statement
EDINET
2024-06-26
Annual Securities Report
Period: Apr 2023 – Mar 2024
EDINET
2024-02-07
Quarterly Securities Report
Period: Oct 2023 – Dec 2023
EDINET
2023-11-06
Quarterly Securities Report
Period: Jul 2023 – Sep 2023
EDINET
2023-08-07
Quarterly Securities Report
Period: Apr 2023 – Jun 2023
EDINET
2023-06-26
Annual Securities Report
Period: Apr 2022 – Mar 2023
EDINET
2023-02-06
Quarterly Securities Report
Period: Oct 2022 – Dec 2022
EDINET
2022-11-07
Quarterly Securities Report
EDINET
2022-08-05
Quarterly Securities Report
EDINET
2022-06-27
Annual Securities Report
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