Overview
Precision Instruments

INTER ACTION Corporation

Inter Action Corporation develops, manufactures, and sells precision optical and inspection equipment, primarily light source devices and pupil modules for CCD/CMOS image sensor testing processes, leveraging world-class optical design technology. Through its Industry 4.0 promotion business, the group also offers precision vibration isolation systems, gear testing machines, AI visual inspection systems, and laser processing equipment targeting semiconductor, automotive, and robotics manufacturers. Additional operations include environmental energy solutions such as drying/deodorizing systems for rotary printing presses and exhaust gas treatment equipment.

Market Cap
¥17.8B
US$114M
EV
¥10.5B
US$66.9M
Stock¥1,758▲+1.38%
US$1 = ¥157.05 (2026-10-22)
LTM EV/EBITDA
15.6
x
LTM EV/EBIT
22.8
x
LTM PER
44.4
x
LTM PBR
1.7
x
Stock vs TOPIX (1Y, base=100)vs TOPIX ▲+1.1%pt
10012345
Oct 23, 25 – Oct 23, 26StockTOPIX
1Dec 19, 25SilverCape Investments Limited changed stake (8.93%→10.7%)
2Dec 23, 25SilverCape Investments Limited changed stake (10.7%→12.25%)
3Dec 25, 25SilverCape Investments Limited changed stake (12.25%→13.32%)
4Jul 21, 26SilverCape Investments Limited changed stake (13.32%→15.1%)
5Jul 27, 26SilverCape Investments Limited changed stake (15.1%→16.5%)
MC → EV Bridge
17.8BUS$114MMarket Cap0.54BUS$3.45M+ Debt7.75BUS$49.3M− Cash0.13BUS$0.83M− Inv. Sec.10.5BUS$66.9MEV
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Performance & Balance
Revenue 5Y (¥B)
6.02US$38.3M'22/56.86US$43.7M'23/57.75US$49.4M'24/56.67US$42.5M'25/54.82US$30.7M'26/5
EBITDA 5Y (¥B)
1.28US$8.16M'22/51.58US$10.1M'23/51.72US$11.0M'24/51.55US$9.89M'25/50.90US$5.71M'26/5
Net Income 5Y (¥B)
0.76US$4.85M'22/50.98US$6.25M'23/51.13US$7.21M'24/50.98US$6.23M'25/50.53US$3.37M'26/5
Capital Structure
95%
EquityD/E 0.05xDebt
Liquidity vs Debt 5Y (¥B)▲ Net Cash
CashInv. Sec.Debt
6.88US$43.8M0.77US$4.93M'22/56.99US$44.5M0.86US$5.50M'23/56.45US$41.1M0.81US$5.14M'24/59.21US$58.6M0.76US$4.84M'25/58.66US$55.1M0.56US$3.55M'26/5
Shareholders
Top 10 hold 51.7%
1
SILVERCAPE INVESTMENTS LIMITED (Standing Proxy: Citibank, N.A., Tokyo Branch)
15.11%
2
JAPAN ABSOLUTE VALUE FUND (Standing Proxy: Tachibana Securities Co., Ltd.)
11.98%
3
The Master Trust Bank of Japan, Ltd. (Trust Account)
9.58%
4
PERSHING-DIV.OF DLJ SECS.CORP. (Standing Proxy: Citibank, N.A., Tokyo Branch)
2.97%
5
MURAKAMI TAKATERU (Standing Proxy: Mita Securities Co., Ltd.)
2.30%
6
Nobuo KIJI
2.24%
7
Custody Bank of Japan, Ltd. (Trust Account)
2.18%
8
Masaaki KURIMURA
2.00%
9
Custody Bank of Japan, Ltd. (Trust Account E)
1.84%
10
STATE STREET BANK AND TRUST COMPANY 510560 (Standing Proxy: Mizuho Bank, Ltd.)
1.51%
Management
8 officers
Nobuo KIJI
Representative Director, President
Apr 2006 Joined the Company Jun 2008 Appointed Director of the Company Mar 2009 Appointed Vice Chairman, Xi'an Chaoyang Photovoltaic Technology Co., Ltd. Jun 2013 Appointed Senior Managing Director of the Company Jul 2014 Appointed Director, Air Gashizu Technos Co., Ltd. Oct 2014 Appointed Representative Director, President, Meiritsu Seiki Co., Ltd. Aug 2015 Appointed Representative Director, Senior Managing Director of the Company Aug 2015 Appointed Audit & Supervisory Board Member, Air Gashizu Technos Co., Ltd. Aug 2015 Appointed Director, Meiritsu Seiki Co., Ltd. Sep 2015 Appointed Chairman, Xi'an Chaoyang Photovoltaic Technology Co., Ltd. (current) Mar 2017 Appointed Representative Director, President, Meiritsu Seiki Co., Ltd. (current) Jul 2017 Appointed Audit & Supervisory Board Member, Tokyo Technical Co., Ltd. Aug 2017 Appointed Representative Director, Vice President of the Company Sep 2017 Appointed Representative Director, President, Tokyo Technical Co., Ltd. (current) Feb 2020 Appointed Director, Air Gashizu Technos Co., Ltd. May 2020 Appointed Director, Rastec Co., Ltd. Jun 2020 Appointed Representative Director, President of the Company (current) Apr 2022 Appointed Representative Director, Chairman and President, Air Gashizu Technos Co., Ltd.
1982-05-28
Yuriko ODA
Director
Mar 2003 Joined You & Me Co., Ltd. Apr 2008 Established Distal Myopathy Patient Association (now PADM) Apr 2015 Appointed Representative, PADM (Specified Nonprofit Corporation) Oct 2015 Appointed Patient Organization Representative, TREAT-NMD Executive Committee Feb 2019 Appointed Member, Study Group on Barrier-Free Tourism Information Provision, Ministry of Land, Infrastructure, Transport and Tourism Apr 2019 Appointed Regional Informatization Advisor, Ministry of Internal Affairs and Communications (current) Feb 2020 Appointed Member, Committee for Revision of Parking Development Plan, Chiyoda Ward, Tokyo Aug 2020 Appointed Director of the Company (current) Feb 2021 Appointed Member, 13th Tokyo Metropolitan Council for Welfare Community Development Jun 2021 Appointed Councilor, Odawara Welfare Association (current) Feb 2023 Appointed Member, 14th Tokyo Metropolitan Council for Welfare Community Development (current) Mar 2023 Appointed Representative Director, Wielog (Specified Nonprofit Corporation) (current) Oct 2024 Appointed Member, Follow-up Meeting on Architectural Design Standards for Smooth Mobility of Elderly Persons and Persons with Disabilities, Ministry of Land, Infrastructure, Transport and Tourism (current) May 2025 Appointed Member, 15th Tokyo Metropolitan Council for Welfare Community Development (current) Jun 2025 Appointed Director, Japan Society of Welfare Community Development (current) Jan 2026 Appointed Member, Committee on Promotion of Pedestrian Mobility Support Using ICT, Ministry of Land, Infrastructure, Transport and Tourism (current) Jun 2026 Appointed Chairperson, PADM (current)
1980-04-26
Hideki SHISHIDO
Director
Apr 2010 Appointed Assistant Professor, Faculty of Engineering, Soka University Feb 2012 Appointed Postdoctoral Researcher, School of Medicine, Oregon Health & Science University (USA) Aug 2016 Appointed Senior Postdoctoral Researcher, Cystic Fibrosis Foundation (USA) Feb 2019 Appointed Scientist, Cystic Fibrosis Foundation (USA) Aug 2020 Appointed Director of the Company (current) Jun 2021 Appointed Scientist I, Cystic Fibrosis Foundation (USA) Oct 2021 Appointed Senior Scientist, Generate Biomedicines (USA) Mar 2023 Appointed Senior Scientist II, Generate Biomedicines (USA) Mar 2025 Appointed Principal Scientist, Generate Biomedicines (USA) Mar 2026 Appointed Associate Director, Generate Biomedicines (USA) (current)
1983-06-24
Noboru ARAKI
Director
Oct 1998 Joined Chuo Audit Corporation (now PwC Japan LLC) May 2002 Registered as Certified Public Accountant Sep 2003 Joined KPMG FAS Co., Ltd. Apr 2020 Opened Araki Certified Public Accountant Office, Representative (current) Apr 2020 Registered as Certified Tax Accountant Jul 2021 Established Hayabusa Trust Audit Corporation, Representative Partner (current) Jul 2021 Established Hayabusa Trust Accounting Tax Corporation, Representative Partner (current) Apr 2022 Established Bloom Advisory Co., Ltd., Representative Director (current) Aug 2025 Appointed Director of the Company (current)
1973-06-08
Yoshihiro UEDA
Director
Mar 1982 Joined ASICS Corporation Jun 2009 Joined Keyence Corporation as Director, General Manager of Management Information Department Jun 2014 Appointed Full-time Audit & Supervisory Board Member, Keyence Corporation Oct 2015 Joined ASICS Corporation as Executive Officer, General Manager of Global Accounting & Finance Division Jun 2020 Joined Osaka Soda Co., Ltd. as Director, Senior Executive Officer, General Manager of Administration Division and General Manager of Public Relations Department Jun 2022 Joined Alps Logistics Co., Ltd. as Outside Director, Audit and Supervisory Committee Member Jun 2025 Appointed Outside Director, Owell Corporation (current) Aug 2025 Appointed Director of the Company (current)
1959-05-11
Moto TOBARA
Full-time Audit & Supervisory Board Member
Apr 1986 Joined Golf Digest Co., Ltd. Nov 1992 Joined Meiritsu Seiki Co., Ltd. Nov 2000 Appointed Representative Director, President, Meiritsu Seiki Co., Ltd. Oct 2014 Appointed Advisor, Meiritsu Seiki Co., Ltd. Aug 2015 Appointed Full-time Audit & Supervisory Board Member of the Company Sep 2020 Appointed Audit & Supervisory Board Member of the Company Aug 2024 Appointed Full-time Audit & Supervisory Board Member of the Company (current)
1962-02-08
Yoshihide TASHIRO
Audit & Supervisory Board Member
Oct 2003 Joined Hiroki Okuyama Tax Accountant Office Nov 2006 Joined Shigeru Sekino Tax Accountant Office Sep 2011 Established Yoshihide Tashiro Tax Accountant Office, Office Head (current) Sep 2012 Established Yoshihide Tashiro Administrative Scrivener Office, Office Head (current) Aug 2015 Appointed Audit & Supervisory Board Member of the Company (current)
1978-06-26
Tetsuo YAMAZAKI
Audit & Supervisory Board Member
Apr 1998 Registered as Attorney-at-Law (Tokyo Bar Association); joined Kotomon Chuo Law Office Apr 2005 Appointed Partner, Kotomon Chuo Law Office Jan 2007 Appointed Outside Audit & Supervisory Board Member, Joycosystems Co., Ltd. Aug 2007 Appointed Outside Audit & Supervisory Board Member, Senior Life Create Co., Ltd. Nov 2010 Appointed Representative Director, Nexus General Incorporated Association Aug 2011 Appointed Outside Audit & Supervisory Board Member, Aiho Co., Ltd. (current) Feb 2017 Appointed Audit & Supervisory Board Member of the Company (current) Apr 2017 Opened Tokyo Hokushin Law Office, Representative (current) Apr 2017 Appointed Auditor, Kaijo Gakuen School Corporation (current) Sep 2022 Appointed Auditor, Chi no Atelier (Specified Nonprofit Corporation) (current)
1972-04-18
Large Shareholding Reports
SilverCape Investments Limited
2026-08-04
16.50%→18.00%
SilverCape Investments Limited
2026-07-27
15.10%→16.50%
SilverCape Investments Limited
2026-07-21
13.32%→15.10%
SilverCape Investments Limited
2025-12-25
12.25%→13.32%
SilverCape Investments Limited
2025-12-23
10.70%→12.25%
SilverCape Investments Limited
2025-12-19
8.93%→10.70%
Kaname Capital, L.P.
2025-10-21
11.43%→12.63%
Kaname Capital, L.P.
2025-09-11
10.42%→11.43%
Kaname Capital, L.P.
2025-08-15
9.20%→10.42%
Kaname Capital, L.P.
2025-08-07
9.20%→10.42%
Kaname Capital, L.P.
2025-07-07
6.31%→9.20%
Kaname Capital, L.P.
2025-06-06
5.21%→6.31%
SilverCape Investments Limited
2025-06-05
7.69%→8.93%
SilverCape Investments Limited
2025-04-23
6.38%→7.69%
Kaname Capital, L.P.
2025-04-22
5.21%
SilverCape Investments Limited
2025-04-11
5.02%→6.38%
SilverCape Investments Limited
2025-03-21
5.02%
Disclosures
No disclosures
Primary Source Filings
TDnet
2026-10-13
Q1 Earnings Flash
FY ending May 2027
EDINET
2026-08-27
Annual Securities Report
Period: Jun 2025 – May 2026
TDnet
2026-08-05
株主総会招集通知
TDnet
2026-08-05
Full-Year Earnings Flash
FY ending May 2026
EDINET
2026-08-04
Large Shareholding Report
EDINET
2026-07-27
Large Shareholding Report
EDINET
2026-07-21
Large Shareholding Report
TDnet
2026-04-10
Q3 Earnings Flash
FY ending May 2026
EDINET
2026-01-13
Semi-Annual Securities Report
Period: Jun 2025 – May 2026
EDINET
2025-12-25
Large Shareholding Report
EDINET
2025-12-23
Large Shareholding Report
EDINET
2025-12-19
Large Shareholding Report
EDINET
2025-10-21
Large Shareholding Report
TDnet
2025-10-10
Q1 Earnings Flash
FY ending May 2026
EDINET
2025-09-11
Large Shareholding Report
EDINET
2025-08-25
Annual Securities Report
Period: Jun 2024 – May 2025
EDINETAmended
2025-08-15
Change Report
EDINET
2025-08-07
Large Shareholding Report
EDINET
2025-07-07
Large Shareholding Report
EDINET
2025-06-06
Large Shareholding Report
EDINET
2025-06-05
Large Shareholding Report
EDINET
2025-04-23
Large Shareholding Report
EDINET
2025-04-22
Large Shareholding Report
TDnet
2025-04-11
Q3 Earnings Flash
FY ending May 2025
EDINET
2025-04-11
Large Shareholding Report
EDINET
2025-03-21
Large Shareholding Report
EDINET
2025-01-14
Semi-Annual Securities Report
Period: Jun 2024 – May 2025
TDnet
2024-10-11
Q1 Earnings Flash
FY ending May 2025
EDINET
2024-08-26
Annual Securities Report
Period: Jun 2023 – May 2024
EDINET
2024-04-12
Quarterly Securities Report
Period: Dec 2023 – Feb 2024
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