Who has been buying From Bio stock?

1 distinct insiders have filed 20 disclosed insider purchases in From Bio (377220), most recently on 2026-06-25. 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 From Bio have?

From Bio has 20 buy-side and 0 sell-side disclosures on record, covering ₩2.1B ($1.4M) in total reported value, spanning 2024-03-14 to 2026-06-25.

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.

From Bio 377220

Company

프롬바이오From Bio

Insiders

Buys

Total Value

₩2.1B ($1.4M)

Avg Return

-25.26%

Last Filing

2026-06-25

From Bio (377220) has 20 disclosed insider purchases and 0 disclosed disposals on record, filed by 1 distinct insiders. Together those filings cover ₩2.1B ($1.4M) in reported transaction value. The earliest filing StockDrifts holds for From Bio is dated 2024-03-14; the most recent is 2026-06-25. Across these filings the average return since disclosure is -25.26%, 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
2026-09-11	SELL	임원퇴임	이상준 Sangjun Lee	moving	-1.4K	₩3,050	+4.9%	₩4M ($3K)
2026-08-13	BUY	Market Buy	이상준 Sangjun Lee	moving	1.4K	-	-	-
2026-06-25	BUY	Market Buy	심태진 Taejin Shim	CEO	103.5K	₩622	-1.1%	₩64M ($45K)
2026-06-24	BUY	Market Buy	심태진 Taejin Shim	CEO	46.5K	₩600	+2.5%	₩28M ($19K)
2026-06-08	BUY	Market Buy	심태진 Taejin Shim	CEO	40.2K	₩707	+18.1%	₩28M ($20K)
2026-06-05	BUY	Market Buy	심태진 Taejin Shim	CEO	31.4K	₩759	+10.0%	₩24M ($17K)
2026-06-04	BUY	Market Buy	심태진 Taejin Shim	CEO	18.0K	₩735	+13.6%	₩13M ($9K)
2026-06-02	BUY	Market Buy	심태진 Taejin Shim	CEO	40.4K	₩757	+10.3%	₩31M ($21K)
2025-03-31	BUY	신규선임	홍인기 Hong In-gi	Managing Director	4.0K	₩1,840	-28.7%	₩7M ($5K)
2025-03-31	SELL	임원퇴임	권기종 Kwon Ki-jong	Managing Director	-10.0K	₩1,840	+28.7%	₩18M ($13K)
2024-11-04	BUY	Market Buy	심태진 Taejin Shim	CEO	126.0K	₩2,130	-38.4%	₩268M ($186K)
2024-10-31	BUY	Market Buy	심태진 Taejin Shim	CEO	1.2K	₩2,145	-38.8%	₩2M ($2K)
2024-10-30	BUY	Market Buy	심태진 Taejin Shim	CEO	25.8K	₩2,215	-40.8%	₩57M ($40K)
2024-10-17	BUY	Market Buy	심태진 Taejin Shim	CEO	46.3K	₩2,020	-35.0%	₩94M ($65K)
2024-10-16	BUY	Market Buy	심태진 Taejin Shim	CEO	93.8K	₩2,020	-35.0%	₩189M ($132K)
2024-10-14	BUY	Market Buy	심태진 Taejin Shim	CEO	50.0K	₩2,165	-39.4%	₩108M ($75K)
2024-10-11	BUY	Market Buy	심태진 Taejin Shim	CEO	50.0K	₩2,190	-40.1%	₩110M ($76K)
2024-10-10	BUY	Market Buy	심태진 Taejin Shim	CEO	35.0K	₩2,190	-40.1%	₩77M ($53K)
2024-10-08	BUY	Market Buy	심태진 Taejin Shim	CEO	60.0K	₩2,255	-41.8%	₩135M ($94K)
2024-10-07	BUY	Market Buy	심태진 Taejin Shim	CEO	100.0K	₩2,295	-42.8%	₩230M ($159K)
2024-09-03	BUY	Market Buy	심태진 Taejin Shim	CEO	70.0K	₩2,190	-40.1%	₩153M ($106K)
2024-09-02	BUY	Market Buy	심태진 Taejin Shim	CEO	70.0K	₩2,220	-40.9%	₩155M ($108K)
2024-08-30	BUY	Market Buy	심태진 Taejin Shim	CEO	70.0K	₩2,290	-42.7%	₩160M ($111K)
2024-08-29	BUY	Market Buy	심태진 Taejin Shim	CEO	70.0K	₩2,280	-42.5%	₩160M ($111K)
2024-03-28	BUY	신규선임	권기종 Kwon Ki-jong	moving	10.0K	₩2,750	-52.3%	₩28M ($19K)
2024-03-28	SELL	임원퇴임	김지훈 Jihoon Kim	vice president	-380.0K	₩2,750	+52.3%	₩1.0B ($726K)
2024-03-14	BUY	무상신주취득	심태진 Taejin Shim	CEO	4.7M	₩2,775	-52.7%	₩13.0B ($9.0M)

Frequently asked questions

Who has been buying From Bio stock?: 1 distinct insiders have filed 20 disclosed insider purchases in From Bio (377220), most recently on 2026-06-25. 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 From Bio have?: From Bio has 20 buy-side and 0 sell-side disclosures on record, covering ₩2.1B ($1.4M) in total reported value, spanning 2024-03-14 to 2026-06-25.
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.