CELSYS Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

Insider Trading Volume

Insider Buying: Insufficient data to determine if insiders have bought more shares than they have sold in the past 3 months.

Ownership Breakdown

What is the ownership structure of 3663?
Owner Type	Number of Shares	Ownership Percentage
Private Companies	-212,300	-0.716%
Individual Insiders	2,303,500	7.77%
Institutions	5,531,182	18.7%
Public Companies	6,059,100	20.4%
General Public	15,949,534	53.8%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.

Top Shareholders

Top 25 shareholders own 48.12% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
10.7%	NAVER Corporation	3,164,600	JP¥6.2b	0%	1.42%
6.12%	Wacom Co., Ltd.	1,813,500	JP¥3.6b	0%	no data
5.79%	Sumitomo Mitsui DS Asset Management Company, Limited	1,714,500	JP¥3.4b	1,820%	0.03%
4.22%	Masahiro Sumiyama	1,250,000	JP¥2.5b	0%	no data
3.65%	AXELL Corporation	1,081,000	JP¥2.1b	0%	no data
3%	Mitsubishi UFJ Trust and Banking Corporation	889,400	JP¥1.8b	0%	0.01%
2.03%	Dimensional Fund Advisors LP	601,298	JP¥1.2b	1.34%	no data
1.79%	Daiwa Asset Management Co., Ltd.	529,800	JP¥1.0b	0%	no data
1.38%	Keishu Aoyama	409,000	JP¥807.4m	0%	no data
1.38%	Samarang Asset Management S.A.	408,800	JP¥807.0m	0%	3.36%
1.36%	Yosuke Kawakami	401,800	JP¥793.2m	0%	no data
1.3%	Amova Asset Management Co., Ltd.	385,000	JP¥760.0m	-2.92%	no data
1.15%	Asset Management One Co., Ltd.	339,700	JP¥670.6m	40%	no data
0.92%	Japan Securities Finance Co., Ltd.	272,500	JP¥537.9m	0%	0.09%
0.89%	Mitsubishi UFJ Asset Management Co., Ltd.	264,900	JP¥522.9m	-0.53%	no data
0.5%	Meiji Yasuda Asset Management Company Ltd.	149,000	JP¥294.1m	-6.88%	0.06%
0.47%	Shinya Nozaki	140,000	JP¥276.4m	0%	no data
0.32%	Angel Japan Asset Management	96,000	JP¥189.5m	0%	0.73%
0.21%	Ken Ito	63,600	JP¥125.5m	0%	no data
0.21%	BlackRock, Inc.	61,900	JP¥122.2m	0%	no data
0.21%	Vanguard Capital Management, LLC	60,834	JP¥120.1m	28%	no data
0.16%	Sumitomo Mitsui Financial Group, Inc.	48,800	JP¥96.3m	-90.2%	no data
0.16%	Sumitomo Mitsui Trust Asset Management Co., Ltd.	48,600	JP¥95.9m	-2.8%	no data
0.12%	Kei Narushima	35,900	JP¥70.9m	0%	no data
0.097%	American Century Investment Management Inc	28,700	JP¥56.7m	0%	no data

Company Analysis and Financial Data Status

Data	Last Updated (UTC time)
Company Analysis	2026/07/09 16:42
End of Day Share Price	2026/07/09 00:00
Earnings	2025/09/30
Annual Earnings	2024/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

Package	Data	Timeframe	Example US Source ^*
Company Financials	10 years	Income statement Cash flow statement Balance sheet	SEC Form 10-K SEC Form 10-Q
Analyst Consensus Estimates	+3 years	Forecast financials Analyst price targets	Analyst Research Reports Blue Matrix
Market Prices	30 years	Stock prices Dividends, Splits and Actions	ICE Market Data SEC Form S-1
Ownership	10 years	Top shareholders Insider trading	SEC Form 4 SEC Form 13D
Management	10 years	Leadership team Board of directors	SEC Form 10-K SEC Form DEF 14A
Key Developments	10 years	Company announcements	SEC Form 8-K

^* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

CELSYS, Inc. is covered by 2 analysts. 1 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

Analyst	Institution
Jiro Kojima	Daiwa Securities Co. Ltd.
Koichi Hariya	Ichiyoshi Research Institute Inc.