Who has been buying actro stock?

4 distinct insiders have filed 16 disclosed insider purchases in actro (290740), most recently on 2026-08-20. 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 actro have?

actro has 16 buy-side and 4 sell-side disclosures on record, covering ₩350M ($243K) in total reported value, spanning 2024-04-25 to 2026-08-20.

Do insider buys in Korean stocks predict returns?

Not uniformly. StockDrifts analysed 170,720 share-count changes across 56,930 Korean regulatory filings using cross-sectional alpha at fixed forward horizons, and found returns concentrated in particular signal tiers rather than in insider buying generally.

actro 290740

Company

액트로actro

Insiders

Buys

Total Value

₩350M ($243K)

Avg Return

+268.56%

Last Filing

2026-08-20

actro (290740) has 16 disclosed insider purchases and 4 disclosed disposals on record, filed by 4 distinct insiders. Together those filings cover ₩350M ($243K) in reported transaction value. The earliest filing StockDrifts holds for actro is dated 2024-04-25; the most recent is 2026-08-20. Across these filings the average return since disclosure is +268.56%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent insider trades

Date	Type	Source	Insider	Position	Shares	Price at filing	Return	Value
2026-08-20	BUY	Market Buy	하동길 Hadong-gil	CEO	1.4K	-	-	-
2026-05-14	BUY	Market Buy	이병준 Byeongjun Lee	president	5.0K	₩16,270	+0.4%	₩81M ($56K)
2026-01-30	SELL	Market Sell	안상원 Sangwon Ahn	Managing Director	-989	₩23,000	-16.7%	₩23M ($16K)
2026-01-29	SELL	Market Sell	안상원 Sangwon Ahn	Managing Director	-825	₩21,450	-25.2%	₩18M ($12K)
2025-09-10	BUY	Market Buy	하동길 Hadong-gil	CEO	1.1K	₩5,470	+390.9%	₩6M ($4K)
2025-09-09	BUY	Market Buy	하동길 Hadong-gil	CEO	661	₩5,490	+389.1%	₩4M ($3K)
2025-09-08	BUY	Market Buy	하동길 Hadong-gil	CEO	1.7K	₩5,550	+383.8%	₩9M ($6K)
2025-09-05	BUY	Market Buy	하동길 Hadong-gil	CEO	1.5K	₩5,540	+384.7%	₩9M ($6K)
2025-08-26	BUY	Market Buy	하동길 Hadong-gil	CEO	273	₩5,300	+406.6%	₩1M ($1K)
2025-08-25	BUY	Market Buy	하동길 Hadong-gil	CEO	727	₩5,410	+396.3%	₩4M ($3K)
2025-08-22	BUY	Market Buy	하동길 Hadong-gil	CEO	49	₩5,490	+389.1%	₩269K ($187)
2025-08-21	BUY	Market Buy	하동길 Hadong-gil	CEO	1.3K	₩5,400	+397.2%	₩7M ($5K)
2025-08-19	BUY	Market Buy	하동길 Hadong-gil	CEO	1.3K	₩5,550	+383.8%	₩7M ($5K)
2024-12-30	BUY	Market Buy	하동길 Hadong-gil	CEO	2.3K	₩5,060	+430.6%	₩12M ($8K)
2024-12-27	BUY	Market Buy	하동길 Hadong-gil	CEO	2.3K	₩5,070	+429.6%	₩12M ($8K)
2024-12-27	BUY	Market Buy	하동길 Hadong-gil	CEO	980	₩5,070	+429.6%	₩5M ($3K)
2024-12-26	BUY	Market Buy	하동길 Hadong-gil	CEO	5.4K	₩5,230	+413.4%	₩28M ($20K)
2024-12-26	BUY	Market Buy	하동길 Hadong-gil	CEO	9.0K	₩5,230	+413.4%	₩47M ($33K)
2024-04-26	SELL	Market Sell	임왕규 Lim Wang-gyu	moving	-5.0K	₩7,700	-248.7%	₩39M ($27K)
2024-04-25	SELL	Market Sell	임왕규 Lim Wang-gyu	moving	-5.0K	₩7,780	-245.1%	₩39M ($27K)

Frequently asked questions

Who has been buying actro stock?: 4 distinct insiders have filed 16 disclosed insider purchases in actro (290740), most recently on 2026-08-20. 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 actro have?: actro has 16 buy-side and 4 sell-side disclosures on record, covering ₩350M ($243K) in total reported value, spanning 2024-04-25 to 2026-08-20.
Do insider buys in Korean stocks predict returns?: Not uniformly. StockDrifts analysed 170,720 share-count changes across 56,930 Korean regulatory filings using cross-sectional alpha at fixed forward horizons, and found returns concentrated in particular signal tiers rather than in insider buying generally.

More on this data

Every trade listed above comes from an official regulatory disclosure. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.