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Cymax 160980

Company
싸이맥스Cymax
Insiders
2
Buys
8
Total Value
₩1.3B ($883K)
Avg Return
+113.27%
Last Filing
2026-03-18

Cymax (160980) has 8 disclosed insider purchases and 3 disclosed disposals on record, filed by 2 distinct insiders. Together those filings cover ₩1.3B ($883K) in reported transaction value. The earliest filing StockDrifts holds for Cymax is dated 2024-03-15; the most recent is 2026-03-18. 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 +113.27%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent insider trades

DateTypeSourceInsiderPositionSharesPrice at filingReturnValue
2026-03-18BUY상속
정혜은
Jeong Hye-eun
CEO532.9K---
2026-03-18SELL피상속
정구용
Jeong Gu-yong
Former) CEO and Chairman-532.9K---
2025-08-19BUY시간외매매
인지컨트롤스
Cognitive Controls
-703.8K₩12,260+67.2%₩8.6B ($6.0M)
2024-12-11BUYMarket Buy
정혜은
Jeong Hye-eun
CEO22.2K₩7,840+161.5%₩174M ($121K)
2024-12-10BUYMarket Buy
정혜은
Jeong Hye-eun
CEO35.9K₩7,730+165.2%₩278M ($193K)
2024-12-09BUYMarket Buy
정혜은
Jeong Hye-eun
CEO378₩7,500+173.3%₩3M ($2K)
2024-12-06BUYMarket Buy
정혜은
Jeong Hye-eun
CEO11.8K₩8,000+156.3%₩94M ($65K)
2024-12-05BUYMarket Buy
정혜은
Jeong Hye-eun
CEO5.7K₩8,040+155.0%₩46M ($32K)
2024-12-04BUYMarket Buy
정혜은
Jeong Hye-eun
CEO14.1K₩8,020+155.6%₩113M ($79K)
2024-12-03BUYMarket Buy
정혜은
Jeong Hye-eun
CEO5.8K₩8,040+155.0%₩46M ($32K)
2024-11-28BUYMarket Buy
정혜은
Jeong Hye-eun
CEO162₩8,480+141.8%₩1M ($954)
2024-03-19SELLMarket Sell
전인택
Jeon In-taek
Chief Medical Officer-8.6K₩19,300-6.2%₩166M ($115K)
2024-03-18SELLMarket Sell
전인택
Jeon In-taek
Chief Medical Officer-8.9K₩19,300-6.2%₩172M ($119K)
2024-03-15SELLMarket Sell
전인택
Jeon In-taek
Chief Medical Officer-9.2K₩19,490-5.2%₩179M ($124K)

Frequently asked questions

Who has been buying Cymax stock?
2 distinct insiders have filed 8 disclosed insider purchases in Cymax (160980), most recently on 2026-03-18. 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 Cymax have?
Cymax has 8 buy-side and 3 sell-side disclosures on record, covering ₩1.3B ($883K) in total reported value, spanning 2024-03-15 to 2026-03-18.
Where does StockDrifts get Cymax 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 Cymax. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.