| 2011-02 |
Established the company in Higashi-ku, Fukuoka City, Fukuoka Prefecture: Nihon Retina Research Institute (now Helios Corporation). |
| 2011-02 |
Initiated consideration of a commercialization strategy for iPSC-derived retinal pigment epithelial cell transplantation for age-related macular degeneration. |
| 2012-12 |
Opened a Tokyo office in Chiyoda-ku, Tokyo. |
| 2013-09 |
Changed the company name to Helios Corporation. Moved the Tokyo office and headquarters to Chuo-ku, Tokyo. |
| 2013-09 |
Changed the company name to Helios Co., Ltd. |
| 2013-10 |
Established a laboratory (now Kobe Research Institute) in Chuo-ku, Kobe. |
| 2013-10 |
Relocated the Tokyo office and headquarters to Chuo-ku, Tokyo. |
| 2013-12 |
Acquired the ophthalmic surgical adjunct business from Akumen Corporation. |
| 2013-12 |
Established a laboratory (now Kobe Research Institute) in Chuo-ku, Kobe. |
| 2014-02 |
Established a joint venture, Silegen Corporation, with Dai Nippon Sumitomo Pharma (now Sumitomo Pharma). |
| 2014-09 |
Moved headquarters to Minato-ku, Tokyo. |
| 2015-06 |
Listed on the Tokyo Stock Exchange Mothers. |
| 2016-01 |
Signed a license agreement with Athersys, Inc. (USA) for regenerative medical products using MultiStem® stem cells in Japan. |
| 2017-04 |
Transferred the business related to the ophthalmic surgical adjunct containing BBG250 to De Western Therapeutics Research Institute. |
| 2018-02 |
Established a subsidiary, Healios NA Inc., in the United States (now a consolidated subsidiary). |
| 2020-01 |
Commenced application of International Financial Reporting Standards (IFRS). |
| 2020-10 |
Relocated headquarters to Chiyoda-ku, Tokyo. |
| 2021-01 |
Established a subsidiary fund in regenerative medicine (currently a consolidated subsidiary), including Saisei Ventures LLC of the United States. |
| 2022-04 |
Transitioned from the Tokyo Stock Exchange Mothers to the Growth Market due to a review of market classifications by the Tokyo Stock Exchange. |
| 2023-07 |
Established subsidiary ProCell Cure Co., Ltd. (currently a consolidated subsidiary). |
| 2023-07 |
Established subsidiary ProCell Cure Co., Ltd. (currently a consolidated subsidiary). |
| 2024-04 |
Acquired the entire assets of Athersys, Inc. of the United States. |
| 2024-06 |
Signed a basic business partnership agreement and a corporate bond repurchase agreement with Alphresa Co., Ltd. |
| 2025-01 |
Established subsidiary Akatsuki Therapeutics Co., Ltd. (currently a consolidated subsidiary). |