Overview
Other Products

EDP Corporation

EDP Co., Ltd. manufactures and sells single-crystal synthetic diamonds produced via plasma CVD (Chemical Vapor Deposition), with seed crystals for laboratory-grown diamond (LGD) jewelry as its primary product, accounting for approximately 58.9% of net sales. The company holds an exclusive license to core technology developed by the National Institute of Advanced Industrial Science and Technology (AIST) and operates at the most upstream position in the LGD supply chain, supplying seed crystals globally to LGD manufacturers. Beyond jewelry applications, EDP also supplies diamond substrates for semiconductor research, heat sinks, optical windows, and precision cutting tool materials, leveraging its proprietary capability to produce large-format, high-quality single-crystal diamond wafers.

Market Cap
¥16.7B
US$107M
EV
¥15.5B
US$98.7M
Stock¥895▼-0.33%
US$1 = ¥156.80 (2026-10-23)
LTM EV/EBITDA
NM
LTM EV/EBIT
NM
LTM PER
NM
LTM PBR
6.9
x
Stock vs TOPIX (1Y, base=100)vs TOPIX ▲+57.0%pt
10012
Oct 24, 25 – Oct 23, 26StockTOPIX
1Jan 27, 26Activist shareholder proposal news
2Feb 5, 26Activist intervention reports
MC → EV Bridge
16.7BUS$107MMarket Cap0.45BUS$2.87M+ Debt1.72BUS$11.0M− Cash0.00BUS$0.00M− Inv. Sec.15.5BUS$98.7MEV
AI Briefing
Generating insights…
Performance & Balance
Revenue 5Y (¥B)
1.14US$7.27M'21/32.71US$17.3M'23/30.76US$4.83M'24/30.90US$5.75M'25/30.52US$3.29M'26/3
EBITDA 5Y (¥B)
0.46US$2.95M'21/31.60US$10.2M'23/30.24US$1.52M'24/3-0.52-US$3.30M'25/3-1.16-US$7.39M'26/3
Net Income 5Y (¥B)
0.91US$5.80M'23/3-0.11-US$0.71M'24/3-2.31-US$14.7M'25/3-2.42-US$15.4M'26/3
Capital Structure
84%
EquityD/E 0.18xDebt
Liquidity vs Debt 5Y (¥B)▲ Net Cash
CashInv. Sec.Debt
0.95US$6.05M0.45US$2.88M'21/32.24US$14.3M0.35US$2.23M'23/30.80US$5.09M'24/31.44US$9.20M0.64US$4.07M'25/30.83US$5.26M0.49US$3.12M'26/3
Shareholders
Top 10 hold 24.9%
1
Naoji FUJIMORI
6.87%
2
Takeuchi Kogyo Co., Ltd.
5.89%
3
Mutsukazu KAMO
1.94%
4
SBI Shinsei Bank,Limited
1.79%
5
Kakutaro KITASHIRO
1.75%
6
Morgan Stanley MUFG Securities Co., Ltd.
1.67%
7
Future Partners Co., Ltd.
1.62%
8
Tsuchiya Co., Ltd.
1.35%
9
Mitsuboshi Diamond Industrial Co., Ltd.
1.29%
10
Japan Securities Finance Co.,Ltd.
0.69%
Management
8 officers
Naoji FUJIMORI
Representative Director, President
Apr 1975 Joined Sumitomo Electric Industries, Ltd. Apr 2003 Joined National Institute of Advanced Industrial Science and Technology (AIST) (now National Research and Development Agency AIST) Sep 2009 Established the Company; Director Apr 2010 Advisory Research Fellow, Institute of Industrial Science, The University of Tokyo May 2010 Advisor, New Diamond Forum General Incorporated Association (current) May 2010 Representative Director, President, the Company (current) Apr 2012 Honorary Researcher, AIST (now National Research and Development Agency AIST) (current) Jan 2024 Representative Director, President, SFD Co., Ltd. Jul 2024 Director, SFD India Private Limited (current) Mar 2025 Director, SFD Antwerp BV (current)
1949-07-03
Hideshige TAKAGISHI
Representative Director, Vice President and General Affairs Department Manager
Apr 1974 Joined Toray Industries, Inc. May 2002 Reform Department Manager, Toyo Service Community Co., Ltd. Nov 2008 Secretary General, Kaiseikai Medical Corporation (seconded) May 2011 Joined the Company; General Affairs Department Manager Jun 2015 Director and General Affairs Department Manager, the Company May 2017 Managing Director and General Affairs Department Manager, the Company Jun 2022 Senior Managing Director and General Affairs Department Manager, the Company Jun 2023 Representative Director, Vice President and General Affairs Department Manager, the Company (current)
1950-11-23
Masashi HAYASHI
Managing Director and Production Department Manager
Apr 1985 Joined Nippon Paint Co., Ltd. Apr 2013 General Manager, Production Technology Department, Nippon Paint Co., Ltd. Oct 2019 Joined the Company Feb 2020 Manufacturing Department Manager, the Company Apr 2020 Production Department Manager, the Company Jun 2020 Director and Production Department Manager, the Company Jun 2022 Managing Director and Production Department Manager, the Company (current)
1959-07-10
Yoshitaka MITSUDA
Director
Jul 1993 Associate Professor, Institute of Industrial Science, The University of Tokyo Dec 2002 Senior Specialist, Division of Higher Education Planning, Higher Education Bureau, Ministry of Education, Culture, Sports, Science and Technology (concurrent until Mar 2005) Jun 2005 Professor, Institute of Industrial Science, The University of Tokyo Apr 2009 Special Assistant to the President (Finance), The University of Tokyo (resigned Mar 2013) Apr 2009 Vice Director, Institute of Industrial Science, The University of Tokyo (resigned Mar 2014) May 2014 Chairman, New Diamond Forum General Incorporated Association Mar 2020 Retired from The University of Tokyo Apr 2020 Professor, Research and Development Department, National Institution for Academic Degrees and Quality Enhancement of Higher Education Jun 2020 Professor Emeritus, The University of Tokyo (current) Jun 2022 Outside Director, UACJ Corporation (current) Jun 2023 Outside Director, the Company (current) Apr 2025 Specially Appointed Professor, Research and Development Department, National Institution for Academic Degrees and Quality Enhancement of Higher Education (current)
1959-11-01
Noriko MAKI
Director
Apr 1988 Joined Chubu-Nippon Broadcasting Co., Ltd. Apr 1991 Joined TV Tokyo Corporation Feb 2008 Established M.C. Strategy Co., Ltd.; Representative Director (current) Jun 2022 Outside Director, Minkabu The Infonoid, Inc. Jun 2025 Outside Director, the Company (current)
1964-08-17
Munehisa OKADA
Full-time Audit & Supervisory Board Member
Apr 1981 Joined Sumitomo Metal Industries, Ltd. (now Nippon Steel Corporation) Jul 2005 Transferred to Sumitomo Titanium Corporation (now Osaka Titanium Technologies Co., Ltd.) Jun 2015 Full-time Audit & Supervisory Board Member, Osaka Titanium Technologies Co., Ltd. Jul 2019 Joined Kurokawa Institute of Ancient Culture Jun 2021 Full-time Audit & Supervisory Board Member, the Company (current)
1958-04-12
Nobutaka OMATSU
Audit & Supervisory Board Member
Oct 1996 Joined Ota Showa & Co. (now EY ShinNihon LLC) Jul 2016 Certified Public Accountant Inspector, Certified Public Accountant and Auditing Oversight Board (CPAAOB), Financial Services Agency Aug 2020 Principal, Omatsu Certified Public Accountant Office (current) Feb 2021 Outside Audit & Supervisory Board Member, Kawakami Paint Mfg. Co., Ltd. (current) Jun 2021 Outside Director (Audit and Supervisory Committee Member), S-TEC Corporation (current) Sep 2021 Outside Audit & Supervisory Board Member, Takeuchi Construction Co., Ltd. (current) Jun 2023 Outside Audit & Supervisory Board Member, the Company (current)
1970-07-24
Hitoshi OTSUKA
Audit & Supervisory Board Member
Apr 1983 Joined Tokyo Shibaura Electric Co., Ltd. (now Toshiba Corporation) Jun 2008 Representative Director, President, Toshiba Electronics Europe GmbH (TEE) Jun 2011 Representative Director, President, Toshiba America Electronic Components Inc. Oct 2015 Managing Executive Officer and Head of Internal Audit Department, Toshiba Corporation Jun 2020 Managing Executive Officer and Head of Board Audit Committee Office, Toshiba Corporation Jun 2025 Outside Audit & Supervisory Board Member, the Company (current)
1958-12-04
Large Shareholding Reports
Naoji FUJIMORI
2026-09-14
7.78%→6.05%
Annual report (as of 2026-03-31): 6.87%
Naoharu Fujimori
2026-09-11
10.50%→9.38%
Correction filing (name/detail fix only) — ratio carried over from the original filing
Annual report (as of 2026-03-31): 6.87%
Okasan Securities Co., Ltd.
2026-09-04
5.52%→3.25%
Okasan Securities Co., Ltd.
2026-08-20
9.34%→5.52%
Okasan Securities Co., Ltd.
2026-08-06
11.76%→9.34%
Okasan Securities Co., Ltd.
2026-07-31
12.92%→11.76%
Okasan Securities Co., Ltd.
2026-07-27
14.16%→12.92%
Okasan Securities Co., Ltd.
2026-07-16
15.19%→14.16%
Okasan Securities Co., Ltd.
2026-07-03
16.35%→15.19%
Okasan Securities Co., Ltd.
2026-07-01
17.39%→16.35%
Okasan Securities Co., Ltd.
2026-06-22
17.39%
Naoji FUJIMORI
2026-06-19
8.02%→7.78%
Annual report (as of 2026-03-31): 6.87%
Naoji FUJIMORI
2026-06-15
10.50%→9.38%
Correction filing (name/detail fix only) — ratio carried over from the original filing
Annual report (as of 2026-03-31): 6.87%
Naoji FUJIMORI
2026-06-15
9.38%→8.02%
Correction filing (name/detail fix only) — ratio carried over from the original filing
Annual report (as of 2026-03-31): 6.87%
Naoji FUJIMORI
2026-06-10
10.50%→9.38%
Annual report (as of 2026-03-31): 6.87%
Naoji FUJIMORI
2026-06-10
9.38%→8.02%
Annual report (as of 2026-03-31): 6.87%
NOMURA INTERNATIONAL PLC
2026-02-20
1.25%
Nomura Securities Co., Ltd.
2026-02-05
7.18%→5.83%
Nomura Securities Co., Ltd.
2026-01-22
8.03%→7.18%
Nomura Securities Co., Ltd.
2026-01-08
9.19%→7.47%
Nomura Securities Co., Ltd.
2025-12-04
6.40%→9.19%
Nomura Securities Co., Ltd.
2025-10-06
7.69%→6.40%
Disclosures
No disclosures
Primary Source Filings
EDINET
2026-09-14
Large Shareholding Report
EDINETAmended
2026-09-11
Change Report
EDINET
2026-09-04
Large Shareholding Report
EDINET
2026-08-20
Large Shareholding Report
TDnet
2026-08-13
Q1 Earnings Flash
FY ending Mar 2027
EDINET
2026-08-06
Large Shareholding Report
EDINETAmended
2026-08-05
Amended Annual Securities Report
Period: Apr 2025 – Mar 2026
EDINET
2026-07-31
Large Shareholding Report
EDINET
2026-07-27
Large Shareholding Report
EDINET
2026-07-16
Large Shareholding Report
EDINET
2026-07-03
Large Shareholding Report
EDINET
2026-07-01
Large Shareholding Report
EDINET
2026-06-24
Annual Securities Report
Period: Apr 2025 – Mar 2026
EDINET
2026-06-22
Large Shareholding Report
EDINET
2026-06-19
Large Shareholding Report
EDINETAmended
2026-06-15
Change Report
EDINETAmended
2026-06-15
Change Report
EDINET
2026-06-10
Large Shareholding Report
EDINET
2026-06-10
Large Shareholding Report
EDINETAmended
2026-06-01
Amended Securities Registration Statement
EDINET
2026-05-27
Securities Registration Statement
EDINET
2026-02-20
Large Shareholding Report
TDnet
2026-02-12
Q3 Earnings Flash
FY ending Mar 2026
EDINET
2026-02-05
Large Shareholding Report
EDINET
2026-01-22
Large Shareholding Report
EDINET
2026-01-08
Large Shareholding Report
EDINET
2025-12-04
Large Shareholding Report
EDINET
2025-11-14
Semi-Annual Securities Report
Period: Apr 2025 – Mar 2026
EDINET
2025-10-06
Large Shareholding Report
TDnet
2025-08-13
Q1 Earnings Flash
FY ending Mar 2026
Ask AI
I have this company's financials, ownership, and management on hand. Ask me anything from an M&A perspective.
End of Preview

Try the full product

Free demo (no time limit, up to 10 companies). Explore Comps, DCF, LBO, WACC on every screen. Excel export is on the paid plan.

Free Demo (No Time Limit, 10 Companies) →