South Korea Communications & Networking

Lightron Fiber-Optic Devices Inc (069540)

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Lightron Fiber-Optic Devices Inc. experienced three significant sell transactions totaling approximately 27.79 billion KRW during October 2026. These divestments occurred amidst a 57.1% stock price increase over the preceding ninety days. No recent buy activity was recorded, reflecting a period of concentrated liquidation by market participants.
Ticker: 069540 Exchange: KOE
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
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Trades
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Ke I He Deu Jo Hap (케이헤드조합) Unclassified position Large shareholder
Transaction date
Sale
Price
483.79
Quantity 82,244 -47.2%
Value ₩3,020,081
Ke I He Deu Jo Hap (케이헤드조합) Unclassified position Large shareholder
Transaction date
Sale
Price
428.08
Quantity 26,265 +29.4%
Value ₩16,667
Ke I He Deu Jo Hap (케이헤드조합) Unclassified position Large shareholder
Transaction date
Sale
Price
102.03
Quantity 10,660 -45.8%
Value ₩12,409
O Jung Geon (오중건) Representative Director (대표이사) Executive Director
Transaction date
Purchase
Price
5,340.00
Quantity 5,220 +0.9%
Value ₩27,874,800
Im Yeong Gyu (임영규) Representative Director (대표이사) Executive Director
Transaction date
Sale
Price
5,114.00
Quantity 15,180 -15.1%
Value ₩77,630,520
Im Yeong Gyu (임영규) Representative Director (대표이사) Executive Director
Transaction date
Sale
Price
5,300.00
Quantity 98,802 -49.6%
Value ₩523,650,600
Im Yeong Gyu (임영규) Representative Director (대표이사) Executive Director
Transaction date
Sale
Price
5,249.00
Quantity 56,666 -22.1%
Value ₩297,439,834
O Jung Geon (오중건) Representative Director (대표이사) Executive Director
Transaction date
Purchase
Price
5,300.00
Quantity 98,802 +21.4%
Value ₩523,650,600
Im Yeong Gyu (임영규) Representative Director (대표이사) Executive Director
Transaction date
Purchase
Price
7,100.00
Quantity 170,648 +200.0%
Value ₩1,211,600,800
DAWONS ((주)다원스) Unclassified position Large shareholder
Transaction date
Sale
Price
7,000.00
Quantity 375,573 -100.0%
Value ₩2,629,011,000
O Jung Geon (오중건) Representative Director (대표이사) Executive Director
Transaction date
Purchase
Price
7,000.00
Quantity 375,573 +440.2%
Value ₩2,629,011,000
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-10-15 2026-10-14 S Sale Ke I He Deu Jo Hap (케이헤드조합)

Unclassified position

Large shareholder
82,244 -47.2%
483.79
₩3,020,081 		82,244 -47.2% 483.79 ₩3,020,081
2026-10-15 2026-10-13 S Sale Ke I He Deu Jo Hap (케이헤드조합)

Unclassified position

Large shareholder
26,265 +29.4%
428.08
₩16,667 		26,265 +29.4% 428.08 ₩16,667
2026-10-15 2026-10-07 S Sale Ke I He Deu Jo Hap (케이헤드조합)

Unclassified position

Large shareholder
10,660 -45.8%
102.03
₩12,409 		10,660 -45.8% 102.03 ₩12,409
2017-12-22 2017-12-22 B Purchase O Jung Geon (오중건)

Representative Director (대표이사)

Executive Director
5,220 +0.9%
5,340.00
₩27,874,800 		5,220 +0.9% 5,340.00 ₩27,874,800
2017-11-20 2017-11-17 S Sale Im Yeong Gyu (임영규)

Representative Director (대표이사)

Executive Director
15,180 -15.1%
5,114.00
₩77,630,520 		15,180 -15.1% 5,114.00 ₩77,630,520
2017-11-20 2017-11-16 S Sale Im Yeong Gyu (임영규)

Representative Director (대표이사)

Executive Director
98,802 -49.6%
5,300.00
₩523,650,600 		98,802 -49.6% 5,300.00 ₩523,650,600
2017-11-20 2017-11-16 S Sale Im Yeong Gyu (임영규)

Representative Director (대표이사)

Executive Director
56,666 -22.1%
5,249.00
₩297,439,834 		56,666 -22.1% 5,249.00 ₩297,439,834
2017-11-20 2017-11-16 B Purchase O Jung Geon (오중건)

Representative Director (대표이사)

Executive Director
98,802 +21.4%
5,300.00
₩523,650,600 		98,802 +21.4% 5,300.00 ₩523,650,600
2017-03-31 2017-03-24 B Purchase Im Yeong Gyu (임영규)

Representative Director (대표이사)

Executive Director
170,648 +200.0%
7,100.00
₩1,211,600,800 		170,648 +200.0% 7,100.00 ₩1,211,600,800
2017-01-03 2016-12-29 S Sale DAWONS ((주)다원스)

Unclassified position

Large shareholder
375,573 -100.0%
7,000.00
₩2,629,011,000 		375,573 -100.0% 7,000.00 ₩2,629,011,000
2017-01-03 2016-12-29 B Purchase O Jung Geon (오중건)

Representative Director (대표이사)

Executive Director
375,573 +440.2%
7,000.00
₩2,629,011,000 		375,573 +440.2% 7,000.00 ₩2,629,011,000
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