Who has been buying TMS Co., Ltd. stock?

10 distinct investors have filed 20 disclosed large-shareholding filings in TMS Co., Ltd. (4891), most recently on 2026-02-04. Each filer, their role, the number of shares and the price at filing are listed in the table on this page.

How many insider filings does TMS Co., Ltd. have?

TMS Co., Ltd. has 20 buy-side and 33 sell-side disclosures on record, covering ¥19.7B ($127.2M) in total reported value, spanning 2022-11-25 to 2026-02-04.

Where does StockDrifts get TMS Co., Ltd. insider data?

From EDINET large-shareholding (5%+) reports — the official filing system run by the Financial Services Agency (Japan). StockDrifts parses each disclosure and matches it to daily price history; the original filings remain available directly from EDINET.

Do insider buys in Japanese stocks predict returns?

Not uniformly. StockDrifts scored 101,000+ Japanese large-shareholding filings on fixed 12-month forward returns and found the predictive power concentrated in specific filer types and filing patterns rather than spread evenly across all disclosures.

TMS Co., Ltd. 4891

Company

株式会社ティムスTMS Co., Ltd.

Investors

Buys

Total Value

¥19.7B ($127.2M)

Avg Return

-52.56%

Last Filing

2026-02-04

TMS Co., Ltd. (4891) has 20 disclosed large-shareholding filings and 33 disclosed disposals on record, filed by 10 distinct investors. Together those filings cover ¥19.7B ($127.2M) in reported transaction value. The earliest filing StockDrifts holds for TMS Co., Ltd. is dated 2022-11-25; the most recent is 2026-02-04. All of it is parsed from EDINET large-shareholding (5%+) reports, the official disclosure system operated by the Financial Services Agency (Japan). Across these filings the average return since disclosure is -52.56%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

Date	Type	Source	Insider	Purpose	Shares	Price at filing	Return	Value
2026-08-14	SELL	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	2.1M	¥102	+0.0%	¥52M ($332K)
2026-07-21	SELL	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	2.6M	¥100	-2.0%	¥24M ($158K)
2026-06-30	SELL	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	2.9M	¥109	+9.2%	¥60M ($385K)
2026-02-04	SELL	Market Buy	東北大学ベンチャーパートナーズ株式会社 TOHOKU University Venture Partners	passive	2.4M	¥148	+2.0%	¥73M ($469K)
2025-11-13	SELL	Market Buy	東北大学ベンチャーパートナーズ株式会社 TOHOKU University Venture Partners	passive	2.8M	¥146	+0.7%	¥107M ($690K)
2025-09-11	SELL	unknown	アールティーダブリュー・インベストメンツ・リミテッドパートナーシップ(RTW Investments, LP) RTW Investments, LP	unknown	0	¥153	+5.2%	¥606M ($3.9M)
2025-06-18	SELL	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	3.5M	¥166	+12.7%	¥31M ($199K)
2025-06-09	SELL	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	3.7M	¥163	+11.0%	¥80M ($514K)
2025-05-30	SELL	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	4.2M	¥164	+11.6%	¥87M ($562K)
2025-05-27	SELL	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	4.8M	¥158	+8.2%	¥11M ($73K)
2025-05-23	SELL	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	4.8M	¥155	+6.5%	¥80M ($519K)
2025-05-19	SELL	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	5.4M	¥155	+6.5%	¥69M ($444K)
2025-05-12	SELL	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	5.9M	¥132	-9.8%	¥58M ($375K)
2025-05-02	SELL	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	6.4M	¥135	-7.4%	¥64M ($410K)
2025-04-28	SELL	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	6.9M	¥131	-10.7%	¥62M ($401K)
2025-04-22	SELL	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	7.4M	¥137	-5.8%	¥68M ($439K)
2025-04-15	BUY	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	8.0M	¥149	-2.7%	¥1.2B ($7.7M)
2025-04-04	BUY	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	8.0M	¥142	+2.1%	¥1.1B ($7.3M)
2025-02-07	SELL	unknown	ニッセイ・キャピタル株式会社 NISSAY CAPITAL CO.,LTD	other	1.5M	¥269	+46.1%	¥266M ($1.7M)
2025-01-30	SELL	Market Buy	三菱UFJキャピタル株式会社(組合名)三菱UFJキャピタル4号投資事業有限責任組合 Mitsubishi UFJ Financial Group Inc.	passive	1.9M	¥255	+43.1%	¥124M ($803K)
2024-11-08	BUY	unknown	三菱UFJキャピタル株式会社(組合名)三菱UFJキャピタル4号投資事業有限責任組合 Mitsubishi UFJ Financial Group Inc.	passive	2.3M	¥195	-25.6%	¥451M ($2.9M)
2024-11-08	SELL	unknown	ニッセイ・キャピタル株式会社 NISSAY CAPITAL CO.,LTD	other	2.5M	¥195	+25.6%	¥93M ($599K)
2024-11-08	SELL	unknown	auカブコム証券株式会社 Mitsubishi UFJ Financial Group Inc.	other	32.4K	¥195	+25.6%	¥472M ($3.0M)
2024-07-23	BUY	Market Buy	auカブコム証券株式会社 Mitsubishi UFJ Financial Group Inc.	other	56.9K	¥229	-36.7%	¥3M ($18K)
2024-07-23	BUY	Market Buy	三菱UFJキャピタル株式会社(組合名)三菱UFJキャピタル4号投資事業有限責任組合 Mitsubishi UFJ Financial Group Inc.	passive	2.7M	¥229	-36.7%	¥613M ($4.0M)
2024-07-11	BUY	unknown	三菱UFJキャピタル株式会社(組合名)三菱UFJキャピタル4号投資事業有限責任組合 Mitsubishi UFJ Financial Group Inc.	passive	2.8M	¥254	-42.9%	¥702M ($4.5M)
2024-07-11	SELL	unknown	auカブコム証券株式会社 Mitsubishi UFJ Financial Group Inc.	other	44.8K	¥254	+42.9%	¥4M ($26K)
2024-06-12	BUY	unknown	三菱UFJキャピタル株式会社(組合名)三菱UFJキャピタル4号投資事業有限責任組合 Mitsubishi UFJ Financial Group Inc.	passive	3.6M	¥217	-33.2%	¥778M ($5.0M)
2024-06-12	SELL	unknown	auカブコム証券株式会社 Mitsubishi UFJ Financial Group Inc.	other	62.2K	¥217	+33.2%	¥875K ($6K)
2024-04-05	SELL	unknown	ニッセイ・キャピタル株式会社 NISSAY CAPITAL CO.,LTD	other	2.9M	¥267	+45.7%	¥124M ($798K)
2024-03-07	SELL	unknown	ニッセイ・キャピタル株式会社 NISSAY CAPITAL CO.,LTD	other	3.4M	¥300	+51.7%	¥158M ($1.0M)
2024-02-08	SELL	unknown	ニッセイ・キャピタル株式会社 NISSAY CAPITAL CO.,LTD	other	3.9M	¥308	+52.9%	¥244M ($1.6M)
2024-02-05	BUY	Market Buy	アールティーダブリュー・インベストメンツ・リミテッドパートナーシップ(RTW Investments, LP) RTW Investments, LP	passive	3.7M	¥264	-45.1%	¥966M ($6.2M)
2023-12-19	SELL	unknown	ニッセイ・キャピタル株式会社 NISSAY CAPITAL CO.,LTD	other	4.3M	¥184	+21.2%	¥68M ($439K)
2023-10-04	SELL	unknown	ニッセイ・キャピタル株式会社 NISSAY CAPITAL CO.,LTD	other	4.7M	¥237	+38.8%	¥88M ($571K)
2023-08-02	SELL	unknown	ニッセイ・キャピタル株式会社 NISSAY CAPITAL CO.,LTD	other	5.0M	¥256	+43.4%	¥99M ($641K)
2023-07-13	SELL	unknown	ニッセイ・キャピタル株式会社 NISSAY CAPITAL CO.,LTD	other	5.4M	¥306	+52.6%	¥119M ($765K)
2023-06-23	SELL	unknown	三生キャピタル株式会社 Sansei Capital Co., Ltd.	passive	0	¥310	+53.2%	¥43M ($278K)
2023-06-23	BUY	unknown	ニッセイ・キャピタル株式会社 NISSAY CAPITAL CO.,LTD	other	5.8M	¥310	-53.2%	¥1.8B ($11.5M)
2023-06-15	SELL	Market Buy	JAICシードキャピタル株式会社 JAIC Seed Capital Co.,Ltd.	passive	1.5M	¥374	+61.2%	¥320M ($2.1M)
2023-05-30	SELL	unknown	三生キャピタル株式会社 Sansei Capital Co., Ltd.	passive	137.2K	¥213	+31.9%	¥21M ($136K)
2023-05-30	SELL	unknown	三生キャピタル株式会社 Sansei Capital Co., Ltd.	passive	137.2K	¥213	+31.9%	¥21M ($136K)
2023-05-30	BUY	unknown	ニッセイ・キャピタル株式会社 NISSAY CAPITAL CO.,LTD	other	6.1M	¥213	-31.9%	¥1.3B ($8.2M)
2023-05-30	BUY	unknown	ニッセイ・キャピタル株式会社 NISSAY CAPITAL CO.,LTD	other	6.1M	¥213	-31.9%	¥1.3B ($8.2M)
2023-05-29	SELL	unknown	三菱UFJキャピタル株式会社(組合名)三菱UFJキャピタル4号投資事業有限責任組合	passive	3.7M	¥246	+41.1%	¥905M ($5.8M)
2023-05-29	SELL	unknown	三菱UFJキャピタル株式会社(組合名)三菱UFJキャピタル4号投資事業有限責任組合	passive	3.7M	¥246	+41.1%	¥905M ($5.8M)
2023-05-29	SELL	unknown	三菱UFJキャピタル株式会社(組合名)三菱UFJキャピタル4号投資事業有限責任組合	passive	3.7M	¥246	+41.1%	¥905M ($5.8M)
2023-05-29	BUY	unknown	三菱UFJキャピタル株式会社(組合名)三菱UFJキャピタル4号投資事業有限責任組合 Mitsubishi UFJ Financial Group Inc.	passive	3.7M	¥215	-32.6%	¥782M ($5.0M)
2023-05-29	BUY	unknown	三菱UFJキャピタル株式会社(組合名)三菱UFJキャピタル4号投資事業有限責任組合 Mitsubishi UFJ Financial Group Inc.	passive	3.7M	¥215	-32.6%	¥782M ($5.0M)
2023-05-29	BUY	unknown	auカブコム証券株式会社 Mitsubishi UFJ Financial Group Inc.	other	59.9K	¥215	-32.6%	¥13M ($83K)

Showing the 50 most recent of 58 filings.

Frequently asked questions

Who has been buying TMS Co., Ltd. stock?: 10 distinct investors have filed 20 disclosed large-shareholding filings in TMS Co., Ltd. (4891), most recently on 2026-02-04. Each filer, their role, the number of shares and the price at filing are listed in the table on this page.
How many insider filings does TMS Co., Ltd. have?: TMS Co., Ltd. has 20 buy-side and 33 sell-side disclosures on record, covering ¥19.7B ($127.2M) in total reported value, spanning 2022-11-25 to 2026-02-04.
Where does StockDrifts get TMS Co., Ltd. insider data?: From EDINET large-shareholding (5%+) reports — the official filing system run by the Financial Services Agency (Japan). StockDrifts parses each disclosure and matches it to daily price history; the original filings remain available directly from EDINET.
Do insider buys in Japanese stocks predict returns?: Not uniformly. StockDrifts scored 101,000+ Japanese large-shareholding filings on fixed 12-month forward returns and found the predictive power concentrated in specific filer types and filing patterns rather than spread evenly across all disclosures.

Source filings

Every trade listed above is disclosed in EDINET large-shareholding (5%+) reports, filed with the Financial Services Agency (Japan). View the original EDINET filings for TMS Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.