Who has been buying Eco Bolt stock?

5 distinct insiders have filed 54 disclosed insider purchases in Eco Bolt (097780), most recently on 2026-05-26. 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 Eco Bolt have?

Eco Bolt has 54 buy-side and 3 sell-side disclosures on record, covering ₩17.8B ($12.4M) in total reported value, spanning 2024-03-31 to 2026-05-26.

Where does StockDrifts get Eco Bolt insider data?

From DART D001/D002 insider disclosures — the official filing system run by the Financial Supervisory Service (Korea). StockDrifts parses each disclosure and matches it to daily price history; the original filings remain available directly from DART.

Do insider buys in Korean stocks predict returns?

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

Eco Bolt 097780

Company

에코볼트Eco Bolt

Insiders

Buys

Total Value

₩17.8B ($12.4M)

Avg Return

-17.26%

Last Filing

2026-05-26

Eco Bolt (097780) has 54 disclosed insider purchases and 3 disclosed disposals on record, filed by 5 distinct insiders. Together those filings cover ₩17.8B ($12.4M) in reported transaction value. The earliest filing StockDrifts holds for Eco Bolt is dated 2024-03-31; the most recent is 2026-05-26. All of it is parsed from DART D001/D002 insider disclosures, the official disclosure system operated by the Financial Supervisory Service (Korea). Across these filings the average return since disclosure is -17.26%, 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
2026-05-26	SELL	자본감소	오성첨단소재 Ohsung Advanced Materials	-	-24.3M	₩664	+0.0%	₩16.1B ($11.2M)
2026-05-26	SELL	자본감소	한재관 Jaegwan Han	CEO	-38.4K	₩664	+0.0%	₩25M ($18K)
2026-05-26	SELL	자본감소	정기도 Jeonggi-do	Managing Director	-27.2K	₩664	+0.0%	₩18M ($13K)
2026-05-14	BUY	주식분할	오성첨단소재 Ohsung Advanced Materials	-	15.2M	₩664	+0.0%	₩10.1B ($7.0M)
2026-05-14	BUY	주식분할	정기도 Jeonggi-do	Managing Director	17.0K	₩664	+0.0%	₩11M ($8K)
2026-05-14	BUY	주식분할	한재관 Jaegwan Han	CEO	24.0K	₩664	+0.0%	₩16M ($11K)
2026-05-07	BUY	Market Buy	정기도 Jeonggi-do	Managing Director	9.0K	₩697	-4.7%	₩6M ($4K)
2026-04-21	SELL	자본감소	정기도 Jeonggi-do	Managing Director	-2.0K	₩801	+0.0%	₩2M ($1K)
2026-04-21	SELL	자본감소	한재관 Jaegwan Han	CEO	-6.0K	₩801	+0.0%	₩5M ($3K)
2026-04-21	SELL	자본감소	오성첨단소재 Ohsung Advanced Materials	-	-3.8M	₩801	+0.0%	₩3.0B ($2.1M)
2025-12-26	SELL	Market Sell	오성첨단소재 Ohsung Advanced Materials	-	-8.0M	₩890	+4.5%	₩7.1B ($4.9M)
2025-11-14	SELL	Market Sell	김상엽 Kim Sang-yeop	CEO	-30.0K	₩1,037	+18.0%	₩31M ($22K)
2025-10-24	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	136.1K	₩1,211	-29.8%	₩165M ($114K)
2025-10-23	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	164.9K	₩1,284	-33.8%	₩212M ($147K)
2025-10-22	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	180.9K	₩1,297	-34.5%	₩235M ($163K)
2025-10-21	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	144.4K	₩1,270	-33.1%	₩183M ($127K)
2025-10-20	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	204.1K	₩1,242	-31.6%	₩254M ($176K)
2025-10-17	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	121.8K	₩1,211	-29.8%	₩147M ($102K)
2025-10-16	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	107.1K	₩1,183	-28.1%	₩127M ($88K)
2025-10-15	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	108.5K	₩1,177	-27.8%	₩128M ($89K)
2025-10-14	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	228.6K	₩1,126	-24.5%	₩257M ($179K)
2025-10-13	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	121.5K	₩1,100	-22.7%	₩134M ($93K)
2025-10-10	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	190.1K	₩1,072	-20.7%	₩204M ($141K)
2025-10-02	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	68.3K	₩1,031	-17.6%	₩70M ($49K)
2025-10-01	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	62.5K	₩1,027	-17.2%	₩64M ($45K)
2025-04-21	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	173.1K	₩1,050	-19.1%	₩182M ($126K)
2025-04-18	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	31.0K	₩1,049	-19.0%	₩33M ($23K)
2025-04-17	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	167.0K	₩1,060	-19.8%	₩177M ($123K)
2025-04-16	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	199.1K	₩1,077	-21.1%	₩214M ($149K)
2025-04-15	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	326.0K	₩1,108	-23.3%	₩361M ($251K)
2025-04-14	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	94.0K	₩1,083	-21.5%	₩102M ($71K)
2025-04-11	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	41.5K	₩1,083	-21.5%	₩45M ($31K)
2025-04-10	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	110.0K	₩1,066	-20.3%	₩117M ($81K)
2025-04-09	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	113.0K	₩1,065	-20.2%	₩120M ($84K)
2025-04-08	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	660.0K	₩1,065	-20.2%	₩703M ($488K)
2025-04-07	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	261.6K	₩1,039	-18.2%	₩272M ($189K)
2025-04-04	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	52.0K	₩999	-14.9%	₩52M ($36K)
2025-04-03	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	74.0K	₩1,021	-16.8%	₩76M ($52K)
2025-04-02	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	85.9K	₩1,023	-16.9%	₩88M ($61K)
2025-04-01	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	133.0K	₩1,028	-17.3%	₩137M ($95K)
2025-03-31	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	61.5K	₩1,021	-16.8%	₩63M ($44K)
2025-03-28	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	17.0K	₩1,021	-16.8%	₩17M ($12K)
2025-03-27	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	59.3K	₩1,011	-15.9%	₩60M ($42K)
2025-03-26	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	45.0K	₩1,030	-17.5%	₩46M ($32K)
2025-03-25	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	45.7K	₩1,023	-16.9%	₩47M ($32K)
2025-03-24	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	49.0K	₩1,012	-16.0%	₩50M ($34K)
2025-02-14	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	75.8K	₩1,018	-16.5%	₩77M ($54K)
2025-02-13	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	62.5K	₩1,032	-17.6%	₩65M ($45K)
2025-02-12	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	43.5K	₩1,030	-17.5%	₩45M ($31K)
2025-02-11	BUY	Market Buy	오성첨단소재 Ohsung Advanced Materials	-	50.0K	₩1,029	-17.4%	₩51M ($36K)

Showing the 50 most recent of 67 filings.

Frequently asked questions

Who has been buying Eco Bolt stock?: 5 distinct insiders have filed 54 disclosed insider purchases in Eco Bolt (097780), most recently on 2026-05-26. 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 Eco Bolt have?: Eco Bolt has 54 buy-side and 3 sell-side disclosures on record, covering ₩17.8B ($12.4M) in total reported value, spanning 2024-03-31 to 2026-05-26.
Where does StockDrifts get Eco Bolt insider data?: From DART D001/D002 insider disclosures — the official filing system run by the Financial Supervisory Service (Korea). StockDrifts parses each disclosure and matches it to daily price history; the original filings remain available directly from DART.
Do insider buys in Korean stocks predict returns?: Not uniformly. StockDrifts analysed 170,720 share-count changes across 56,930 Korean DART filings using cross-sectional alpha at fixed forward horizons, and found returns concentrated in particular signal tiers rather than in insider buying generally.

Source filings

Every trade listed above is disclosed in DART D001/D002 insider disclosures, filed with the Financial Supervisory Service (Korea). View the original DART filings for Eco Bolt. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.