Who has been buying DT stock?

4 distinct insiders have filed 0 disclosed insider purchases in DT (110990), most recently on 2026-05-07. 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 DT have?

DT has 0 buy-side and 12 sell-side disclosures on record, covering ₩2.8B ($1.9M) in total reported value, spanning 2024-02-20 to 2026-05-07.

Where does StockDrifts get DT 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.

DT 110990

Company

디아이티DT

Insiders

Buys

Total Value

₩2.8B ($1.9M)

Avg Return

+1.46%

Last Filing

2026-05-07

DT (110990) has 0 disclosed insider purchases and 12 disclosed disposals on record, filed by 4 distinct insiders. Together those filings cover ₩2.8B ($1.9M) in reported transaction value. The earliest filing StockDrifts holds for DT is dated 2024-02-20; the most recent is 2026-05-07. 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 +1.46%, 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
2026-05-07	SELL	Market Sell	조철현 Cho Cheol-hyeon	Director	-4.0K	₩24,900	+3.4%	₩100M ($69K)
2026-04-28	SELL	Market Sell	양현모 Yang Hyeon-mo	Director	-500	₩25,650	+3.3%	₩13M ($9K)
2026-04-27	SELL	Market Sell	양현모 Yang Hyeon-mo	Director	-500	₩26,650	+6.9%	₩13M ($9K)
2026-04-16	BUY	자사주상여금	최우종 Woojong Choi	Director	895	₩23,000	-0.4%	₩21M ($14K)
2026-04-16	SELL	증여	조철현 Cho Cheol-hyeon	Director	-407	₩23,000	+0.4%	₩9M ($7K)
2026-04-16	SELL	증여	김범수 Beomsu Kim	Director	-3.0K	₩23,000	+0.4%	₩69M ($48K)
2026-04-16	BUY	자사주상여금	김성욱 Seongwook Kim	Director	1.1K	₩23,000	-0.4%	₩25M ($17K)
2026-04-16	BUY	자사주상여금	조철현 Cho Cheol-hyeon	Director	1.1K	₩23,000	-0.4%	₩25M ($17K)
2026-04-16	BUY	자사주상여금	조진석 Cho Jin-seok	Director	895	₩23,000	-0.4%	₩21M ($14K)
2026-04-16	BUY	자사주상여금	남성일 men's day	Director	1.1K	₩23,000	-0.4%	₩25M ($17K)
2026-04-16	BUY	자사주상여금	손성호 Seongho Son	Director	3.3K	₩23,000	-0.4%	₩76M ($53K)
2026-04-16	BUY	자사주상여금	양현모 Yang Hyeon-mo	Director	895	₩23,000	-0.4%	₩21M ($14K)
2026-04-16	BUY	자사주상여금	김범수 Beomsu Kim	Director	895	₩23,000	-0.4%	₩21M ($14K)
2026-04-16	BUY	자사주상여금	김현정 Hyunjeong Kim	Director	1.1K	₩23,000	-0.4%	₩25M ($17K)
2026-04-16	BUY	자사주상여금	최부연 Buyeon Choi	Director	1.3K	₩23,000	-0.4%	₩29M ($20K)
2026-04-16	BUY	자사주상여금	이광수 Lee Kwang-soo	Director	1.1K	₩23,000	-0.4%	₩25M ($17K)
2026-03-11	SELL	증여	조철현 Cho Cheol-hyeon	Director	-450	₩22,650	+12.8%	₩10M ($7K)
2026-03-11	SELL	증여	조철현 Cho Cheol-hyeon	Director	-400	₩22,650	+12.8%	₩9M ($6K)
2026-03-09	BUY	주식매수선택권	조철현 Cho Cheol-hyeon	Director	7.0K	₩21,400	-7.7%	₩150M ($104K)
2026-03-09	BUY	주식매수선택권	김성욱 Seongwook Kim	Director	20.0K	₩21,400	-7.7%	₩428M ($297K)
2026-03-09	BUY	주식매수선택권	김범수 Beomsu Kim	Director	15.0K	₩21,400	-7.7%	₩321M ($223K)
2026-02-26	SELL	Market Sell	양현모 Yang Hyeon-mo	Director	-1.5K	₩23,700	+16.6%	₩36M ($25K)
2026-02-03	SELL	Market Sell	김성욱 Seongwook Kim	Director	-70.2K	₩21,700	+8.9%	₩1.5B ($1.1M)
2026-01-30	SELL	Market Sell	김성욱 Seongwook Kim	Director	-20.0K	₩21,900	+9.8%	₩438M ($304K)
2026-01-16	SELL	Market Sell	김성욱 Seongwook Kim	Director	-20.0K	₩17,920	-10.3%	₩358M ($249K)
2026-01-14	SELL	Market Sell	김성욱 Seongwook Kim	Director	-5.0K	₩17,790	-11.1%	₩89M ($62K)
2026-01-13	SELL	Market Sell	손성호 Seongho Son	Director	-1.1K	₩17,800	-11.0%	₩20M ($14K)
2026-01-12	SELL	Market Sell	김성욱 Seongwook Kim	Director	-1.7K	₩17,330	-14.0%	₩29M ($20K)
2026-01-09	SELL	Market Sell	김성욱 Seongwook Kim	Director	-10.0K	₩17,220	-14.8%	₩172M ($120K)
2025-12-23	SELL	증여	이광수 Lee Kwang-soo	Director	-18.0K	₩15,050	-31.3%	₩271M ($188K)
2025-12-19	BUY	주식매수선택권	이광수 Lee Kwang-soo	Director	20.0K	₩13,960	+41.5%	₩279M ($194K)
2025-12-19	BUY	주식매수선택권	최부연 Buyeon Choi	Director	10.0K	₩13,960	+41.5%	₩140M ($97K)
2025-10-15	BUY	자사주상여금	남성일 men's day	Director	1.4K	₩16,350	+20.9%	₩22M ($16K)
2025-10-15	BUY	자사주상여금	김범수 Beomsu Kim	Director	1.1K	₩16,350	+20.9%	₩18M ($13K)
2025-10-15	BUY	자사주상여금	양현모 Yang Hyeon-mo	Director	1.5K	₩16,350	+20.9%	₩25M ($17K)
2025-10-15	BUY	자사주상여금	최우종 Woojong Choi	Director	1.1K	₩16,350	+20.9%	₩18M ($13K)
2025-10-15	BUY	자사주상여금	박종철 Park Jong-cheol	CEO	408	₩16,350	+20.9%	₩7M ($5K)
2025-10-15	BUY	자사주상여금	전정우 Jeon Jeong-woo	vice president	408	₩16,350	+20.9%	₩7M ($5K)
2025-10-15	BUY	자사주상여금	최부연 Buyeon Choi	Director	1.6K	₩16,350	+20.9%	₩26M ($18K)
2025-10-15	BUY	자사주상여금	조진석 Cho Jin-seok	Director	1.5K	₩16,350	+20.9%	₩25M ($17K)
2025-10-15	BUY	자사주상여금	조철현 Cho Cheol-hyeon	Director	1.4K	₩16,350	+20.9%	₩22M ($15K)
2025-10-15	BUY	자사주상여금	이광수 Lee Kwang-soo	Director	1.5K	₩16,350	+20.9%	₩25M ($17K)
2025-10-15	BUY	자사주상여금	김성욱 Seongwook Kim	Director	1.7K	₩16,350	+20.9%	₩28M ($20K)
2025-10-15	BUY	자사주상여금	손성호 Seongho Son	Director	1.1K	₩16,350	+20.9%	₩18M ($13K)
2025-10-14	SELL	증여	조철현 Cho Cheol-hyeon	Director	-600	₩15,640	-26.3%	₩9M ($7K)
2025-08-25	SELL	증여	조철현 Cho Cheol-hyeon	Director	-1.0K	₩11,370	-73.8%	₩11M ($8K)
2025-08-21	BUY	주식매수선택권	김범수 Beomsu Kim	Director	5.0K	₩11,130	+77.5%	₩56M ($39K)
2025-08-21	BUY	주식매수선택권	최부연 Buyeon Choi	Director	10.0K	₩11,130	+77.5%	₩111M ($77K)
2025-08-21	BUY	주식매수선택권	조철현 Cho Cheol-hyeon	Director	6.0K	₩11,130	+77.5%	₩67M ($46K)
2025-04-09	BUY	자사주상여금	김성욱 Seongwook Kim	Director	1.3K	₩12,300	+60.6%	₩16M ($11K)

Showing the 50 most recent of 84 filings.

Frequently asked questions

Who has been buying DT stock?: 4 distinct insiders have filed 0 disclosed insider purchases in DT (110990), most recently on 2026-05-07. 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 DT have?: DT has 0 buy-side and 12 sell-side disclosures on record, covering ₩2.8B ($1.9M) in total reported value, spanning 2024-02-20 to 2026-05-07.
Where does StockDrifts get DT 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 DT. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.