Who has been buying Boryeong stock?

3 distinct insiders have filed 11 disclosed insider purchases in Boryeong (003850), most recently on 2026-05-01. 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 Boryeong have?

Boryeong has 11 buy-side and 2 sell-side disclosures on record, covering ₩183M ($127K) in total reported value, spanning 2024-11-14 to 2026-05-01.

Where does StockDrifts get Boryeong 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.

Boryeong 003850

Company

보령Boryeong

Insiders

Buys

Total Value

₩183M ($127K)

Avg Return

+9.43%

Last Filing

2026-05-01

Boryeong (003850) has 11 disclosed insider purchases and 2 disclosed disposals on record, filed by 3 distinct insiders. Together those filings cover ₩183M ($127K) in reported transaction value. The earliest filing StockDrifts holds for Boryeong is dated 2024-11-14; the most recent is 2026-05-01. 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 +9.43%, 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
2026-05-01	BUY	합병	보령홀딩스 Boryeong Holdings	-	18.1M	₩10,010	-4.7%	₩181.2B ($125.8M)
2026-05-01	SELL	합병	보령파트너스 Boryeong Partners	-	-18.1M	₩10,010	+4.7%	₩181.2B ($125.8M)
2026-02-10	SELL	Market Sell	이근재 Geunjae Lee	Managing Director	-6.2K	₩9,540	-6.9%	₩60M ($41K)
2026-02-10	SELL	Market Sell	이근재 Geunjae Lee	Managing Director	-755	₩9,540	-6.9%	₩7M ($5K)
2025-06-05	BUY	자사주상여금	PAK YUN SIK	Vice President, Pharma Business Manager	117.6K	₩8,650	+17.9%	₩1.0B ($706K)
2025-06-05	BUY	자사주상여금	김성진 Seongjin Kim	Executive director, Chief Strategy Officer	400.0K	₩8,650	+17.9%	₩3.5B ($2.4M)
2025-05-20	BUY	Market Buy	정웅제 Jeong Woong-je	Managing Director	1.0K	₩8,250	+23.6%	₩8M ($6K)
2025-05-20	BUY	Market Buy	정웅제 Jeong Woong-je	Managing Director	1.0K	₩8,250	+23.6%	₩8M ($6K)
2025-05-20	BUY	Market Buy	정웅제 Jeong Woong-je	Managing Director	1.0K	₩8,250	+23.6%	₩8M ($6K)
2025-05-20	BUY	Market Buy	정웅제 Jeong Woong-je	Managing Director	1.5K	₩8,250	+23.6%	₩12M ($9K)
2025-05-15	BUY	Market Buy	정웅제 Jeong Woong-je	Managing Director	235	₩8,480	+20.3%	₩2M ($1K)
2025-03-31	BUY	Market Buy	김성진 Seongjin Kim	Executive director, Chief Strategy Officer	3.0K	₩8,670	+17.6%	₩26M ($18K)
2024-12-04	BUY	Market Buy	김성진 Seongjin Kim	Executive director, Chief Strategy Officer	1.1K	₩10,120	+0.8%	₩11M ($7K)
2024-12-04	BUY	Market Buy	김성진 Seongjin Kim	Executive director, Chief Strategy Officer	3.1K	₩10,120	+0.8%	₩31M ($22K)
2024-12-04	BUY	Market Buy	김성진 Seongjin Kim	Executive director, Chief Strategy Officer	83	₩10,120	+0.8%	₩840K ($583)
2024-12-04	BUY	Market Buy	김성진 Seongjin Kim	Executive director, Chief Strategy Officer	606	₩10,120	+0.8%	₩6M ($4K)
2024-12-04	BUY	Market Buy	김성진 Seongjin Kim	Executive director, Chief Strategy Officer	193	₩10,120	+0.8%	₩2M ($1K)
2024-11-14	BUY	제3자배정유상증자	보령파트너스 Boryeong Partners	-	18.1M	₩10,870	-6.2%	₩196.7B ($136.6M)

Frequently asked questions

Who has been buying Boryeong stock?: 3 distinct insiders have filed 11 disclosed insider purchases in Boryeong (003850), most recently on 2026-05-01. 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 Boryeong have?: Boryeong has 11 buy-side and 2 sell-side disclosures on record, covering ₩183M ($127K) in total reported value, spanning 2024-11-14 to 2026-05-01.
Where does StockDrifts get Boryeong 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 Boryeong. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.