Stock Inc. Appoints Shunichi Takeda, Formerly of LINE Yahoo, as CTO
Stock Inc. announced that Shunichi Takeda, formerly of LINE Yahoo, assumed the position of CTO on May 21, 2026. The company aims to strengthen its technical organization and infrastructure as it enters a 'second founding' phase to accelerate product growth.
📋 Article Processing Timeline
- 📰 Published: May 22, 2026 at 00:00
- 🔍 Collected: May 21, 2026 at 15:31
- 🤖 AI Analyzed: May 21, 2026 at 17:34 (2h 2m after Collected)
Stock Inc. (President: Daisuke Sawamura; Headquarters: Chuo-ku, Tokyo) announces the appointment of Shunichi Takeda as Chief Technology Officer (CTO), effective May 21, 2026.
Our mission is to 'eliminate stress in information sharing for non-IT companies worldwide,' focusing strictly on the development and operation of services tailored to these users.
'Stock,' an information sharing tool officially launched in 2018, is currently used by over 250,000 organizations, making it the largest information stock tool for non-IT companies in Japan. In 2024, we launched 'Narekan,' a knowledge management tool that is rapidly gaining adoption, particularly among large to mid-sized enterprises.
As both products solidify their presence as business infrastructure for non-IT companies, the construction of a technical organization capable of driving system stability, robustness, and accelerated user experience improvement has become a critical management theme.
Takeda's extensive experience and high level of technical expertise are indispensable for the next stage of our growth. Going forward, Takeda will oversee our product strategy, engineering organization, and entire technical infrastructure.
## Profile: Shunichi Takeda
Began his engineering career in 2005, with over 20 years of experience primarily in infrastructure, back-end, and security domains.
Previously served at LINE Yahoo Corporation, where he was responsible for security and led the SRE team for 'Yahoo! Shopping,' contributing to the reliability of one of Japan's largest payment and ordering infrastructures.
Joined Stock Inc. in April 2026 and was appointed CTO in May 2026.
## Comment from Shunichi Takeda
'I will build a system infrastructure that balances high stability with the agility to adapt, ensuring that daily information and organizational knowledge can be nurtured into reliable assets. I will also create a team that treats technology as a means, elevating individual skills into the collective strength of the organization.
By leveraging this dual focus on technology and organization, I will continuously provide essential value to our users and technologically lead our company into a new stage.'
## Comment from President Daisuke Sawamura
'Since joining our company, Takeda has consistently performed exceptionally well, driving discontinuous growth in both organization and products. I have strongly felt this change every day.
With Takeda's formal appointment as CTO, we are now ready to take on challenges at a completely different speed to realize our mission of "eliminating stress in information sharing for non-IT companies worldwide."
With our new CTO on board, the company is entering its second founding period. Please look forward to our future evolution.'
Our mission is to 'eliminate stress in information sharing for non-IT companies worldwide,' focusing strictly on the development and operation of services tailored to these users.
'Stock,' an information sharing tool officially launched in 2018, is currently used by over 250,000 organizations, making it the largest information stock tool for non-IT companies in Japan. In 2024, we launched 'Narekan,' a knowledge management tool that is rapidly gaining adoption, particularly among large to mid-sized enterprises.
As both products solidify their presence as business infrastructure for non-IT companies, the construction of a technical organization capable of driving system stability, robustness, and accelerated user experience improvement has become a critical management theme.
Takeda's extensive experience and high level of technical expertise are indispensable for the next stage of our growth. Going forward, Takeda will oversee our product strategy, engineering organization, and entire technical infrastructure.
## Profile: Shunichi Takeda
Began his engineering career in 2005, with over 20 years of experience primarily in infrastructure, back-end, and security domains.
Previously served at LINE Yahoo Corporation, where he was responsible for security and led the SRE team for 'Yahoo! Shopping,' contributing to the reliability of one of Japan's largest payment and ordering infrastructures.
Joined Stock Inc. in April 2026 and was appointed CTO in May 2026.
## Comment from Shunichi Takeda
'I will build a system infrastructure that balances high stability with the agility to adapt, ensuring that daily information and organizational knowledge can be nurtured into reliable assets. I will also create a team that treats technology as a means, elevating individual skills into the collective strength of the organization.
By leveraging this dual focus on technology and organization, I will continuously provide essential value to our users and technologically lead our company into a new stage.'
## Comment from President Daisuke Sawamura
'Since joining our company, Takeda has consistently performed exceptionally well, driving discontinuous growth in both organization and products. I have strongly felt this change every day.
With Takeda's formal appointment as CTO, we are now ready to take on challenges at a completely different speed to realize our mission of "eliminating stress in information sharing for non-IT companies worldwide."
With our new CTO on board, the company is entering its second founding period. Please look forward to our future evolution.'
FAQ
What does Stock Inc. do?
It develops and operates information sharing tools 'Stock' and 'Narekan' for businesses.
Who is the new CTO Shunichi Takeda?
He is an engineer who previously served as Security Manager and SRE Team Leader at LINE Yahoo's 'Yahoo! Shopping'.
What will change with this appointment?
The management structure for product strategy and engineering organization will be strengthened, accelerating growth.