윤
윤성효 Chief Executive Officer
C-suite M
Explore the full record of transactions filed by 윤성효, Chief Executive Officer. Director active across 1 company, notably 기산텔레콤. Cumulatively, 31 reports have been logged. Activity tracked since 7 May 2026. The latest transaction was filed on 12 May 2026 (Sale). Regulator: DART (FSS). All data is accessible without signup.
Declarations 31 total
● 상무보 · Executives · 13 May 2026 · 기산텔레콤 10,000 shares @ ₩4,378.33 0.0000% mcap 100.0% of flow Share DART:20260515001695 ● 상무 · Executives · 12 May 2026 · 기산텔레콤 10,000 shares @ ₩4,200.00 0.0000% mcap 100.0% of flow Share DART:20260515001420 ● 상무보 · Executives · 12 May 2026 · 기산텔레콤 10,000 shares @ ₩4,282.00 0.0000% mcap 100.0% of flow Share DART:20260515001554 ● 상무보 · Executives · 11 May 2026 · 기산텔레콤 1,000 shares @ ₩4,050.00 0.0000% mcap 33.9% of flow Share DART:20260515001914 ● 상무보 · Executives · 11 May 2026 · 기산텔레콤 10,000 shares @ ₩4,027.50 0.0000% mcap 100.0% of flow Share DART:20260515001346 ● 상무 · Executives · 6 May 2026 · 기산텔레콤 10,000 shares @ ₩3,700.00 0.0000% mcap 100.0% of flow Share DART:20260508000856 ● 상무보 · Executives · 8 May 2026 (filed) · 기산텔레콤 Share DART:20260508000188 Ideal exit: 2 Feb 2027 (T+270) ● 상무보 · Executives · 7 May 2026 · 기산텔레콤 2,000 shares @ ₩3,870.00 0.0000% mcap 66.1% of flow Share DART:20260508000939 ● 상무보 · Executives · 6 May 2026 · 기산텔레콤 10,000 shares @ ₩3,689.17 0.0000% mcap 100.0% of flow Share DART:20260508000917 ● 상무보 · Executives · 20 Apr 2026 (filed) · 기산텔레콤 Share DART:20260420000289 Ideal exit: 15 Jan 2027 (T+270) ● 상무 · Executives · 20 Apr 2026 (filed) · 기산텔레콤 Share DART:20260420000275 Ideal exit: 15 Jan 2027 (T+270) ● 상무 · Executives · 20 Apr 2026 (filed) · 기산텔레콤 Share DART:20260420000273 Ideal exit: 15 Jan 2027 (T+270) ● 상무보 · Executives · 20 Apr 2026 (filed) · 기산텔레콤 Share DART:20260420000268 Ideal exit: 15 Jan 2027 (T+270) ● 상무 · Executives · 20 Apr 2026 (filed) · 기산텔레콤 Share DART:20260420000257 Ideal exit: 15 Jan 2027 (T+270) ● 상무보 · Executives · 20 Apr 2026 (filed) · 기산텔레콤 Share DART:20260420000253 Ideal exit: 15 Jan 2027 (T+270) ● 상무 · Executives · 20 Apr 2026 (filed) · 기산텔레콤 Share DART:20260420000246 Ideal exit: 15 Jan 2027 (T+270) ● 상무 · Executives · 20 Apr 2026 (filed) · 기산텔레콤 Share DART:20260420000237 Ideal exit: 15 Jan 2027 (T+270) ● 상무 · Executives · 20 Apr 2026 (filed) · 기산텔레콤 Share DART:20260420000225 Ideal exit: 15 Jan 2027 (T+270) ● 부사장 · Executives · 20 Apr 2026 (filed) · 기산텔레콤 Share DART:20260420000193 Ideal exit: 15 Jan 2027 (T+270) ● 상무보 · Executives · 20 Apr 2026 (filed) · 기산텔레콤 Share DART:20260420000311 Ideal exit: 15 Jan 2027 (T+270) ● 상무보 · Executives · 20 Apr 2026 (filed) · 기산텔레콤 Share DART:20260420000306 Ideal exit: 15 Jan 2027 (T+270) ● 상무보 · Executives · 20 Apr 2026 (filed) · 기산텔레콤 Share DART:20260420000301 Ideal exit: 15 Jan 2027 (T+270) ● Executives · 19 Mar 2026 (filed)
● Executives · 10 Mar 2026 (filed)
● Executives · 10 Mar 2025 (filed)
25 of 31 declarations
Load more (6 remaining) About 윤성효 Yoon Seong-hyo is the Executive Director at Gisan Telecom, where he is involved in managing operations and business development. With a solid background in the telecommunications sector, he oversees key projects and ensures the efficiency of internal processes. His expertise contributes to Gisan Telecom's position as a major player in the industry.