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Atom 355690

Company
에이텀Atom
Insiders
2
Buys
1
Total Value
₩220M ($153K)
Avg Return
-21.96%
Last Filing
2026-05-01

Atom (355690) has 1 disclosed insider purchases and 1 disclosed disposals on record, filed by 2 distinct insiders. Together those filings cover ₩220M ($153K) in reported transaction value. The earliest filing StockDrifts holds for Atom is dated 2023-12-01; 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 -21.96%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent insider trades

DateTypeSourceInsiderPositionSharesPrice at filingReturnValue
2026-05-01BUY유상신주취득
한택수
Taeksu Han
CEO746.9K₩5,220-19.1%₩3.9B ($2.7M)
2026-04-07BUY기타
한택수
Taeksu Han
CEO1.0M₩5,400-21.8%₩5.6B ($3.9M)
2026-04-07SELL장외매도
한택수
Taeksu Han
CEO-285.9K₩5,400+21.8%₩1.5B ($1.1M)
2025-03-27SELLMarket Sell
설동식
Seol Dong-sik
Managing Director-3.8K₩6,460+22.9%₩25M ($17K)
2024-06-18BUYMarket Buy
한택수
Taeksu Han
CEO13.0K₩15,010-66.8%₩195M ($135K)
2023-12-01BUY신규상장
한택수
Taeksu Han
CEO1.4M₩30,400-83.6%₩42.0B ($29.1M)

Frequently asked questions

Who has been buying Atom stock?
2 distinct insiders have filed 1 disclosed insider purchases in Atom (355690), 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 Atom have?
Atom has 1 buy-side and 1 sell-side disclosures on record, covering ₩220M ($153K) in total reported value, spanning 2023-12-01 to 2026-05-01.
Where does StockDrifts get Atom 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 Atom. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.