Who has been buying Nasu Denki-Tekko Co., Ltd. stock?

6 distinct investors have filed 15 disclosed large-shareholding filings in Nasu Denki-Tekko Co., Ltd. (5922), most recently on 2026-04-08. 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 Nasu Denki-Tekko Co., Ltd. have?

Nasu Denki-Tekko Co., Ltd. has 15 buy-side and 2 sell-side disclosures on record, covering ¥2.8B ($17.8M) in total reported value, spanning 2024-05-23 to 2026-04-08.

Where does StockDrifts get Nasu Denki-Tekko 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.

Nasu Denki-Tekko Co., Ltd. 5922

Company

那須電機鉄工株式会社Nasu Denki-Tekko Co., Ltd.

Investors

Buys

Total Value

¥2.8B ($17.8M)

Avg Return

+60.36%

Last Filing

2026-04-08

Nasu Denki-Tekko Co., Ltd. (5922) has 15 disclosed large-shareholding filings and 2 disclosed disposals on record, filed by 6 distinct investors. Together those filings cover ¥2.8B ($17.8M) in reported transaction value. The earliest filing StockDrifts holds for Nasu Denki-Tekko Co., Ltd. is dated 2024-05-23; the most recent is 2026-04-08. 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 +60.36%, 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
2026-06-11	BUY	Market Buy	ダルトン・インベストメンツ・インク Dalton Investments, Inc.	activist	800	¥17,770	-0.1%	¥15M ($96K)
2026-06-11	BUY	Market Buy	エヌエーブイエフ・セレクト・マスター・ファンド・エルピーFund LP) NAVF Select (Master	activist	45.3K	¥17,770	-0.1%	¥75M ($482K)
2026-06-11	BUY	acquisition	ニッポン・アクティブ・バリュー・ファンド NIPPON ACTIVE VALUE FUND PLC	activist	94.1K	¥17,770	-0.1%	¥126M ($812K)
2026-04-08	BUY	unknown	ニッポン・アクティブ・バリュー・ファンド NIPPON ACTIVE VALUE FUND PLC	activist	87.0K	¥19,340	+1.6%	¥1.7B ($10.9M)
2026-04-08	BUY	unknown	エヌエーブイエフ・セレクト・マスター・ファンド・エルピーFund LP) NAVF Select (Master	activist	41.2K	¥19,340	+1.6%	¥214M ($1.4M)
2026-04-08	SELL	unknown	ダルトン・インベストメンツ・インク(Dalton Investments	activist	0	¥19,340	-1.6%	¥44M ($284K)
2025-12-12	BUY	unknown	株式会社ケー・エフ・シー KFC Ltd	strategic	60.1K	¥15,470	+26.6%	¥930M ($6.0M)
2025-12-12	BUY	unknown	株式会社ケー・エフ・シー KFC Ltd	strategic	60.1K	¥15,470	+26.6%	¥930M ($6.0M)
2025-09-22	BUY	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	10.4K	¥14,200	+38.0%	¥148M ($953K)
2025-09-22	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	50.0K	¥14,200	+38.0%	¥710M ($4.6M)
2025-07-22	SELL	Market Buy	ダルトン・インベストメンツ・インク(Dalton Investments Dalton Investments, Inc.	activist	2.3K	¥13,090	-49.7%	¥1.2B ($7.9M)
2025-07-22	BUY	Market Buy	エヌエーブイエフ・セレクト・エルエルシー NAVF Select LLC	activist	30.1K	¥13,090	+49.7%	¥68M ($436K)
2025-07-22	BUY	Market Buy	ニッポン・アクティブ・バリュー・ファンド NIPPON ACTIVE VALUE FUND PLC	activist	87.0K	¥13,090	+49.7%	¥74M ($476K)
2025-01-10	BUY	Market Buy	ダルトン・インベストメンツ・インク(Dalton Investments Dalton Investments, Inc.	activist	1.0K	¥11,600	+68.9%	¥12M ($75K)
2025-01-10	BUY	Market Buy	エヌエーブイエフ・セレクト・エルエルシー NAVF Select LLC	activist	25.0K	¥11,600	+68.9%	¥290M ($1.9M)
2025-01-10	BUY	Market Buy	ニッポン・アクティブ・バリュー・ファンド NIPPON ACTIVE VALUE FUND PLC	activist	81.3K	¥11,600	+68.9%	¥38M ($242K)
2024-12-20	BUY	Market Buy	エヌエーブイエフ・セレクト・エルエルシー NAVF Select LLC	activist	25.0K	¥11,350	+72.6%	¥102M ($659K)
2024-12-20	BUY	Market Buy	ニッポン・アクティブ・バリュー・ファンド NIPPON ACTIVE VALUE FUND PLC	activist	78.1K	¥11,350	+72.6%	¥35M ($228K)
2024-10-07	BUY	Market Buy	エヌエーブイエフ・セレクト・エルエルシー NAVF Select LLC	activist	16.0K	¥11,820	+65.7%	¥64M ($412K)
2024-10-07	BUY	Market Buy	ニッポン・アクティブ・バリュー・ファンド NIPPON ACTIVE VALUE FUND PLC	activist	75.0K	¥11,820	+65.7%	¥81M ($522K)
2024-08-13	BUY	Market Buy	エヌエーブイエフ・セレクト・エルエルシー NAVF Select LLC	activist	10.5K	¥10,330	+89.6%	¥19M ($120K)
2024-08-13	BUY	Market Buy	ニッポン・アクティブ・バリュー・ファンド NIPPON ACTIVE VALUE FUND PLC	activist	68.2K	¥10,330	+89.6%	¥120M ($776K)
2024-05-23	BUY	unknown	エヌエーブイエフ・セレクト・エルエルシー NAVF Select LLC	activist	8.7K	¥10,390	+88.5%	¥90M ($583K)
2024-05-23	BUY	unknown	ニッポン・アクティブ・バリュー・ファンド NIPPON ACTIVE VALUE FUND PLC	activist	56.5K	¥10,390	+88.5%	¥587M ($3.8M)

Frequently asked questions

Who has been buying Nasu Denki-Tekko Co., Ltd. stock?: 6 distinct investors have filed 15 disclosed large-shareholding filings in Nasu Denki-Tekko Co., Ltd. (5922), most recently on 2026-04-08. 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 Nasu Denki-Tekko Co., Ltd. have?: Nasu Denki-Tekko Co., Ltd. has 15 buy-side and 2 sell-side disclosures on record, covering ¥2.8B ($17.8M) in total reported value, spanning 2024-05-23 to 2026-04-08.
Where does StockDrifts get Nasu Denki-Tekko 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 Nasu Denki-Tekko Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.