No insider purchase over the last 90 days. The latest, by 코아스, was filed 30 Dec 2025.
Haesung Optics Co., Ltd.: what insiders have been doing
This page follows insider dealings at Haesung Optics Co., Ltd. as filed with DART (FSS), a company from the Technology sector. From 2 November 2025 to 2 November 2026, the disclosure feed for Haesung Optics Co., Ltd. logged 7 filings by 5 insiders.
Purchases and sales both appear in the filings: 2 purchases (2 insiders) and 3 sales (2 insiders). No amount is published for 5 filings, which the totals therefore leave out. A purchase on the market is a deliberate choice to commit personal money, which is why it draws more attention than a grant.
With 7 filings in twelve months, the company is in line with the median of 7 filings across the 2,655 companies we follow on the same exchange. The full history, which starts in 2021, counts 22 purchases against 12 sales.
The clock since the last published purchase (30 December 2025) now reads 315 days. Typically, a trade is published a median of 6 days after it takes place. This delay matters because a trade only becomes useful information once it is public. Keep in mind that insiders sell for many reasons unrelated to the outlook, from tax bills to estate planning.
Elsewhere in the same sector, our signals recently picked up insider purchases at Basler Aktiengesellschaft and Lime Technologies AB (publ). Every figure here comes from the filings published by DART (FSS) and describes the past, not future prices; it is not investment advice.
Who traded when
BuySale+1 other insider
Transparent value + quality ranking, distinct from the insider signal.
Financial data
as of FY 2025FY ended December 2025 · cache
- Other0DART
- KRXDART:20260623000425
- ●Executives0DART
- 1,160,000 sharesKRXDART:20260126000400
- 564,925 sharesKRXDART:20260120000024
- 6,400,000 sharesKRXDART:20260106000182
- 6,000,000 sharesKRXDART:20251230000204Canonical exit: 24 Mar 2026 (T+90)
- 1,695,939 sharesKRXDART:20251224000703Canonical exit: 24 Mar 2026 (T+90)
- 2,383,221 sharesKRXDART:20251002000549
- 2,000,000 sharesKRXDART:20250709000439
- 2,657,297 sharesKRXDART:20250704000168Canonical exit: 25 Sept 2025 (T+90)
- 3,700,000 sharesKRXDART:20250522000365Canonical exit: 14 Aug 2025 (T+90)
- 721,709 sharesKRXDART:20250507000265
- 527,139 sharesKRXDART:20250110000855
- 271,198 sharesKRXDART:20241205000205
- 2,175,489 sharesKRXDART:20240711000150Canonical exit: 29 Sept 2024 (T+90)
- 2,910,360 sharesKRXDART:20240528000397Canonical exit: 19 Aug 2024 (T+90)
- 1,752,336 sharesKRXDART:20240216000362Canonical exit: 7 May 2024 (T+90)
- 8,650,189 sharesKRXDART:20240112000107
- 14,964,312 sharesKRXDART:20240110000727
- 24,000,000 sharesKRXDART:20240109000187
- 2,910,360 sharesKRXDART:20231027000402Canonical exit: 18 Jan 2024 (T+90)
- 2,910,360 sharesKRXDART:20230511000001Canonical exit: 2 Jul 2023 (T+90)
- 2,910,360 sharesKRXDART:20230504000429Canonical exit: 1 Aug 2023 (T+90)
- 1,369,691 sharesKRXDART:20230106000137
25 of 50 declarations
About Haesung Optics Co., Ltd.
해성옵틱스 is a technology company listed on the XKRX market. It specializes in the manufacturing of optical devices and related optical solutions.
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