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Overview

Information & Communication

Stmn,Inc.

Stamen Inc. operates a portfolio of SaaS and platform services centered on employee and community engagement. Its flagship product, TUNAG, is a subscription-based employee engagement platform that combines engagement surveys, dedicated customer success support, and an internal communications cloud to help companies improve organizational performance and reduce turnover. The company also offers FANTS (an online community platform for fan engagement), STAGE (a culture-fit focused recruitment agency), and Watchy (a cloud security and IT asset management service).

Market Cap

¥5.36B

US$34.2M

¥4.22B

US$26.9M

Stock¥610▼-3.02%

US$1 = ¥156.80 (2026-10-23)

LTM EV/EBITDA

9.3

LTM EV/EBIT

10.2

LTM PER

18.2

LTM PBR

3.4

Stock vs TOPIX (1Y, base=100)vs TOPIX ▼-69.3%pt

Oct 24, 25 – Oct 23, 26StockTOPIX

MC → EV Bridge

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Performance & Balance

Revenue 5Y (¥B)

EBITDA 5Y (¥B)

Net Income 5Y (¥B)

Capital Structure

96%

EquityD/E 0.04xDebt

Liquidity vs Debt 5Y (¥B)▲ Net Cash

CashInv. Sec.Debt

Shareholders

Top 10 hold 53.9%

as of 2026-06-30 · Source: Annual Securities Report

Taihei ONISHI

17.94%

Atsushi KATO

13.67%

NOMURA PB NOMINEES LIMITED OMNIBUS-MARGIN (CASHPB; Standing Proxy: Nomura Securities Co., Ltd.)

4.81%

INTERACTIVE BROKERS LLC (Standing Proxy: Interactive Brokers Securities Japan Inc.)

3.14%

Rakuten Securities, Inc. (Joint Account)

2.59%

Custody Bank of Japan, Ltd. (Trust Account)

2.47%

SBI SECURITIES Co., Ltd.

2.43%

JOM Co., Ltd.

2.28%

Lifework Co., Ltd.

2.28%

YMS Co., Ltd.

2.28%

Management

5 officers

Taihei ONISHI

Representative Director, President and Executive Officer, CEO

Apr 2008 Joined Daiko Advertising Inc. Sep 2012 Joined Uniqlo Co., Ltd. Jul 2014 Joined Sekai Lab Pte. Ltd. Aug 2016 Director of the Company Mar 2020 Director, Head of Corporate Division of the Company Jan 2022 Director, Vice President and Executive Officer, COO of the Company Jan 2022 General Manager, TUNAG Business Division of the Company Jan 2023 Director, STAGE Inc. (current) Jan 2023 Representative Director, President and Executive Officer, CEO of the Company (current) Jan 2024 Representative Director, Hypernova Inc. (current) Aug 2024 Director, Stadium Co., Ltd. (current)

1984-12-08

Naomi NAKATANI

Director, Executive Officer, CAO

Apr 2010 Joined H.I.S. Co., Ltd. Apr 2018 Joined the Company Jan 2021 General Manager, Administration Department, Corporate Division of the Company Nov 2021 Manager, Management Control, Corporate Division of the Company Mar 2022 Director (Full-time Audit and Supervisory Committee Member) of the Company Mar 2024 Director, Executive Officer, CAO of the Company (current) Aug 2024 Director, STAGE Inc. Aug 2024 Director, Stadium Co., Ltd. (current)

1987-12-19

Ayumi UEMATSU

Director (Full-time Audit and Supervisory Committee Member)

Feb 2011 Joined Azusa Audit LLC Jul 2022 Joined the Company, Accounting and Finance Department Sep 2022 Opened Ayumi Uematsu CPA Office (current) Mar 2024 Director (Full-time Audit and Supervisory Committee Member) of the Company (current) Oct 2025 Outside Director, Brass Co., Ltd. (current)

1987-01-01

Keita MURASE

Outside Director (Audit and Supervisory Committee Member) (Note 1)

Dec 2017 Registered as attorney with the Aichi Bar Association Dec 2017 Joined Jonan Law Office Mar 2019 Auditor of the Company Jan 2021 Joined Misono Sogo Law Office (Attorney Corporation) Mar 2022 Outside Director (Audit and Supervisory Committee Member) of the Company (current) Mar 2023 Opened Murase Sogo Law Office (current) Mar 2025 Outside Auditor, SaleSeed Inc. (current) Apr 2025 Part-time Supervisor of Re-employment, Cabinet Office Re-employment Monitoring Committee (current)

1988-06-10

Takehito FUJITA

Outside Director (Audit and Supervisory Committee Member) (Note 1)

Apr 1997 Joined Nagoya Miyako Hotel Co., Ltd. Dec 1999 Joined Taishi Ltd. Sep 2002 Joined Hikari Tsushin, Inc. Jun 2007 Joined Proto Corporation Jan 2012 Joined Piped Bits Inc. Mar 2018 Joined Caonavi, Inc. Sep 2019 Joined ROBOT PAYMENT Inc. Mar 2025 Outside Director (Audit and Supervisory Committee Member) of the Company (current) Apr 2025 Executive Officer, COO, ROBOT PAYMENT Inc. (current)

1978-02-06

Large Shareholding Reports

Atsushi Kato

2026-08-24

13.67%→13.67%

Annual report (as of 2026-06-30): 13.67%

Atsushi KATO

2026-06-12

13.68%→13.67%

Annual report (as of 2026-06-30): 13.67%

Atsushi KATO

2026-03-12

13.68%→13.67%

Annual report (as of 2026-06-30): 13.67%

Wojciech Jakub Podobas

2026-03-09

5.47%→3.19%

Wojciech Jakub Podobas

2026-03-06

8.03%→5.47%

Atsushi KATO

2026-03-04

13.68%→13.67%

Annual report (as of 2026-06-30): 13.67%

Atsushi KATO

2026-02-27

13.68%→13.67%

Annual report (as of 2026-06-30): 13.67%

Taihei ONISHI

2026-01-30

18.85%→18.77%

Annual report (as of 2026-06-30): 17.94%

Atsushi KATO

2025-11-26

13.69%→13.68%

Annual report (as of 2026-06-30): 13.67%

Starfronts Co., Ltd.

2025-09-01

6.84%→5.62%

Correction filing (name/detail fix only) — ratio carried over from the original filing

Atsushi KATO

2025-08-29

14.61%→13.69%

Correction filing (name/detail fix only) — ratio carried over from the original filing

Annual report (as of 2026-06-30): 13.67%

Atsushi KATO

2025-08-29

13.69%→13.69%

Annual report (as of 2026-06-30): 13.67%

Atsushi KATO

2025-08-21

14.61%→13.69%

Annual report (as of 2026-06-30): 13.67%

Atsushi KATO

2025-08-21

13.69%→13.69%

Annual report (as of 2026-06-30): 13.67%

Disclosures

No disclosures

Primary Source Filings

EDINET

2026-08-24

Large Shareholding Report

Stmn,Inc.

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Stmn,Inc.

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