Who has been buying QD Laser, Inc. stock?

8 distinct investors have filed 16 disclosed large-shareholding filings in QD Laser, Inc. (6613), most recently on 2025-06-06. 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 QD Laser, Inc. have?

QD Laser, Inc. has 16 buy-side and 19 sell-side disclosures on record, covering ¥11.0B ($71.2M) in total reported value, spanning 2021-08-24 to 2025-06-06.

Where does StockDrifts get QD Laser, Inc. 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.

QD Laser, Inc. 6613

Company

株式会社QDレーザQD Laser, Inc.

Investors

Buys

Total Value

¥11.0B ($71.2M)

Avg Return

+185.80%

Last Filing

2025-06-06

QD Laser, Inc. (6613) has 16 disclosed large-shareholding filings and 19 disclosed disposals on record, filed by 8 distinct investors. Together those filings cover ¥11.0B ($71.2M) in reported transaction value. The earliest filing StockDrifts holds for QD Laser, Inc. is dated 2021-08-24; the most recent is 2025-06-06. 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 +185.80%, 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
2025-06-06	BUY	Market Buy	M&Gインベストメンツ(シンガポール)ピーティーイー・リミテッドPte. Ltd.) M&G Investments (Singapore	passive	1.3M	¥244	+549.6%	¥314M ($2.0M)
2025-06-06	SELL	Market Buy	M&Gインベストメント・マネジメント・リミテッド、M&Gインベストメンツ(シンガポール)ピーティーイー・リミテッドPte. Ltd.) M&G Investment Management Limited	passive	1.3M	¥244	-549.6%	¥384M ($2.5M)
2024-09-06	BUY	Market Buy	M&Gインベストメンツ(シンガポール)ピーティーイー・リミテッドPte. Ltd.) M&G Investments (Singapore	passive	2.9M	¥386	+310.6%	¥1.1B ($7.1M)
2024-09-06	BUY	Market Buy	M&Gインベストメント・マネジメント・リミテッド、M&Gインベストメンツ(シンガポール)ピーティーイー・リミテッドPte. Ltd.) M&G Investment Management Limited	passive	2.9M	¥386	+310.6%	¥119M ($770K)
2024-07-16	SELL	unknown	楽天証券株式会社 Rakuten Securities Inc	other	1.8M	¥440	-260.2%	¥125M ($806K)
2024-07-16	BUY	unknown	楽天証券株式会社 Rakuten Securities Inc	other	1.8M	¥440	+260.2%	¥125M ($806K)
2024-06-21	BUY	Market Buy	M&Gインベストメント・マネジメント・リミテッド(M&G Investment Management Limited) M&G Investment Management Limited	passive	2.6M	¥442	+258.6%	¥192M ($1.2M)
2024-06-05	BUY	unknown	楽天証券株式会社 Rakuten Securities Inc	other	2.1M	¥440	+260.2%	¥937M ($6.0M)
2024-02-07	BUY	Market Buy	M&Gインベストメント・マネジメント・リミテッド(M&G Investment Management Limited) M&G Investment Management Limited	passive	2.1M	¥567	+179.5%	¥1.2B ($7.7M)
2024-01-05	SELL	unknown	楽天証券株式会社 Rakuten Securities Inc	other	1.9M	¥542	-192.4%	¥325M ($2.1M)
2023-11-02	BUY	Market Buy	楽天証券株式会社 Rakuten Securities Inc	other	2.5M	¥590	+168.6%	¥246M ($1.6M)
2023-07-20	BUY	unknown	楽天証券株式会社 Rakuten Securities Inc	other	2.1M	¥816	+94.2%	¥1.7B ($11.0M)
2023-05-10	SELL	unknown	クレディ・スイス証券株式会社 Credit Suisse Securities (Japan) Limited	other	8.2K	¥681	-132.8%	¥16M ($102K)
2023-03-23	SELL	unknown	クレディ・スイス証券株式会社 Credit Suisse Securities (Japan) Limited	other	3.1M	¥573	-176.6%	¥352M ($2.3M)
2023-03-09	SELL	unknown	クレディ・スイス証券株式会社 Credit Suisse Securities (Japan) Limited	other	3.8M	¥540	-193.5%	¥317M ($2.0M)
2023-03-06	SELL	unknown	クレディ・スイス証券株式会社 Credit Suisse Securities (Japan) Limited	other	4.5M	¥564	-181.0%	¥343M ($2.2M)
2023-01-11	BUY	Market Buy	SBIインベストメント株式会社 SBI Investment Co., Ltd.	passive	642.0K	¥551	+187.7%	¥354M ($2.3M)
2023-01-11	BUY	Market Buy	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	1.0M	¥551	+187.7%	¥543M ($3.5M)
2023-01-11	BUY	unknown	クレディ・スイス証券株式会社 Credit Suisse Securities (Japan) Limited	other	5.1M	¥551	+187.7%	¥2.8B ($18.3M)
2022-12-23	SELL	Market Buy	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	4.6M	¥524	-202.5%	¥125M ($808K)
2022-12-23	SELL	Market Buy	SBIインベストメント株式会社 SBI Investment Co., Ltd.	passive	642.0K	¥524	-202.5%	¥4M ($24K)
2022-11-10	BUY	Market Buy	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	4.8M	¥602	+163.3%	¥13M ($84K)
2022-11-10	BUY	Market Buy	SBIインベストメント株式会社 SBI Investment Co., Ltd.	passive	642.0K	¥602	+163.3%	¥386M ($2.5M)
2022-09-30	BUY	Market Buy	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	4.8M	¥504	+214.5%	¥29M ($186K)
2022-09-30	BUY	Market Buy	SBIインベストメント株式会社 SBI Investment Co., Ltd.	passive	642.0K	¥504	+214.5%	¥324M ($2.1M)
2022-08-22	SELL	Market Buy	SBIインベストメント株式会社 SBI Investment Co., Ltd.	passive	642.0K	¥629	-152.0%	¥2M ($15K)
2022-08-22	BUY	Market Buy	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	4.7M	¥629	+152.0%	¥88M ($567K)
2022-06-08	BUY	Market Buy	SBIインベストメント株式会社 SBI Investment Co., Ltd.	passive	642.0K	¥573	+176.6%	¥368M ($2.4M)
2022-06-08	BUY	Market Buy	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	4.6M	¥573	+176.6%	¥59M ($383K)
2022-03-08	BUY	Market Buy	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	4.5M	¥496	+219.6%	¥35M ($229K)
2022-03-08	BUY	Market Buy	SBIインベストメント株式会社 SBI Investment Co., Ltd.	passive	642.0K	¥496	+219.6%	¥318M ($2.1M)
2022-02-28	SELL	Market Buy	東京センチュリー株式会社 Tokyo Century Corporation	passive	1.7M	¥483	-228.2%	¥181M ($1.2M)
2022-01-13	BUY	Market Buy	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	4.4M	¥740	+114.2%	¥2.9B ($18.7M)
2022-01-13	SELL	Market Buy	ミツイアンドコグローバルインベストメントインク(Mitsui & Co. Global Investment, Inc.)代表取締役大久保潔 Mitsui & Co. Global Investment, Inc.	passive	1.7M	¥740	-114.2%	¥263M ($1.7M)
2022-01-13	SELL	Market Buy	SBIインベストメント株式会社 SBI Investment Co., Ltd.	passive	642.0K	¥740	-114.2%	¥11M ($68K)
2021-12-22	SELL	Market Buy	東京センチュリー株式会社 Tokyo Century Corporation	passive	2.0M	¥707	-124.2%	¥254M ($1.6M)
2021-12-20	BUY	Market Buy	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	5.0M	¥653	+142.7%	¥3.3B ($21.3M)
2021-12-20	BUY	Market Buy	SBIインベストメント株式会社 SBI Investment Co., Ltd.	passive	642.0K	¥653	+142.7%	¥419M ($2.7M)
2021-11-29	SELL	Market Buy	ミツイアンドコグローバルインベストメントインク(Mitsui & Co. Global Investment, Inc.)代表取締役大久保潔 Mitsui & Co. Global Investment, Inc.	passive	2.0M	¥803	-97.4%	¥361M ($2.3M)
2021-11-25	SELL	Market Buy	ミツイアンドコグローバルインベストメントインク(Mitsui & Co. Global Investment, Inc.)代表取締役大久保潔 Mitsui & Co. Global Investment, Inc.	passive	2.5M	¥956	-65.8%	¥676M ($4.4M)
2021-11-19	SELL	Market Buy	東京センチュリー株式会社 Tokyo Century Corporation	passive	2.4M	¥1,005	-57.7%	¥466M ($3.0M)
2021-08-26	SELL	Market Buy	東京センチュリー株式会社 Tokyo Century Corporation	passive	2.8M	¥1,038	-52.7%	¥402M ($2.6M)
2021-08-24	SELL	Market Buy	東京センチュリー株式会社 Tokyo Century Corporation	passive	3.2M	¥976	-62.4%	¥435M ($2.8M)
2021-08-24	BUY	Market Buy	東京センチュリー株式会社 Tokyo Century Corporation	passive	3.2M	¥976	+62.4%	¥435M ($2.8M)

Frequently asked questions

Who has been buying QD Laser, Inc. stock?: 8 distinct investors have filed 16 disclosed large-shareholding filings in QD Laser, Inc. (6613), most recently on 2025-06-06. 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 QD Laser, Inc. have?: QD Laser, Inc. has 16 buy-side and 19 sell-side disclosures on record, covering ¥11.0B ($71.2M) in total reported value, spanning 2021-08-24 to 2025-06-06.
Where does StockDrifts get QD Laser, Inc. 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 QD Laser, Inc.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.