SemiLEDs Corp Stock: price and insider trades · United States · SEC (Form 4)Track the SemiLEDs Corp share price and the full directors' dealings record of the company, a publicly traded company based in United States. Shares trade on the US market, under the supervision of SEC (Form 4). Operating in the Technology sector, SemiLEDs Corp has published 26 public disclosures. Market capitalisation: €20.8m. The latest transaction was reported on 28 November 2025 (Attribution). Among the most active insiders: Gough Walter Michael. All data is accessible without an account.
This score ranks the purchase within its own market. No market currently meets the historical allocation criteria, so signals remain watch-only. Not investment advice.
Fundamental score
Ranked 23,151 of 29,064 companies
FCF yld 9.2%
Earn yld -6.4%
EV/EBITDA ·
ROE -29%
Gross mgn 5.7%
Net mgn -2.6%
Debt/EBITDA ·
Pillars 2/3
Transparent value + quality ranking, distinct from the insider signal.
Σ Sigma AI Analysis Fundamental view, insider signal, bull and bear case, synthesis.
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Last declaration on 28 November 2025
All Executives26 Thresholds0 Prospectus0 Other0
Declarations 26 total
◆ Director · Executives · 27 Nov 2025
5,000 shares 0Common Stock SEC:0002029299-25-000002:0
◆ Director · Executives · 27 Nov 2025
5,000 shares 0Common Stock SEC:0001671071-25-000002:0
◆ Director · Executives · 27 Nov 2025
5,000 shares 0Common Stock SEC:0001541193-25-000002:0
◆ Chief Financial Officer · Executives · 10 Jul 2025
8,000 shares 0Common Stock SEC:0001630738-25-000002:0
722,891 shares @ US$1.66 47.9% of flow Common Stock SEC:0000950170-25-031590:0
● Director · Executives · 28 Feb 2025
722,891 shares @ US$1.66 47.9% of flow Common Stock SEC:0000950170-25-031574:0
722,891 shares @ US$1.66 47.9% of flow Common Stock SEC:0000950170-25-031589:0
● Chairman and CEO · Executives · 28 Feb 2025
240,963 shares @ US$1.66 28.7% of flow Common Stock SEC:0001228895-25-000001:0
◆ Director · Executives · 27 Nov 2024
5,000 shares 0Common Stock SEC:0001333822-24-000004:0
◆ Director · Executives · 27 Nov 2024
5,000 shares 0Common Stock SEC:0001333822-24-000006:0
◆ Director · Executives · 27 Nov 2024
5,000 shares 0Common Stock SEC:0001333822-24-000005:0
● Chairman and CEO · Executives · 9 Feb 2024
629,921 shares @ US$1.27 55.4% of flow Common Stock SEC:0001333822-24-000001:0
1,050,022 shares @ US$1.31 52.1% of flow Common Stock SEC:0000950170-24-003670:0
● Director · Executives · 8 Jan 2024
1,050,022 shares @ US$1.31 52.1% of flow Common Stock SEC:0000950170-24-003672:0
1,050,022 shares @ US$1.31 52.1% of flow Common Stock SEC:0000950170-24-003669:0
● Chairman and CEO · Executives · 8 Jan 2024
178,106 shares @ US$1.31 15.9% of flow Common Stock SEC:0001228895-24-000001:0
◆ Director · Executives · 7 Jul 2023
5,000 shares 0Common Stock SEC:0001541193-23-000001:0
◆ Director · Executives · 7 Jul 2023
5,000 shares 0Common Stock SEC:0001671071-23-000001:0
◆ Chief Financial Officer · Executives · 25 Apr 2023
8,000 shares 0Common Stock SEC:0001630738-23-000002:0
◆ Director · Executives · 7 Nov 2022
5,000 shares 0Common Stock SEC:0001541193-22-000001:0
◆ Director · Executives · 7 Nov 2022
5,000 shares 0Common Stock SEC:0001671071-22-000001:0
◆ Director · Executives · 7 Nov 2022
5,000 shares 0Common Stock SEC:0001713973-22-000001:0
◆ Director · Executives · 12 Nov 2021
5,000 shares 0Common Stock SEC:0001541193-21-000001:0
◆ Director · Executives · 12 Nov 2021
5,000 shares 0Common Stock SEC:0001541193-21-000002:0
◆ Chief Financial Officer · Executives · 12 Nov 2021
8,000 shares 0Common Stock SEC:0001541193-21-000004:0
25 of 26 declarations
Load more (1 remaining) 关于 SemiLEDs Corp SemiLEDs Corp. (NASDAQ: LEDS) 是一家在美国上市的微市值科技公司,专注于光电半导体,特别是 LED 芯片和 LED 组件的设计、制造和销售。该公司于 2005 年 1 月 4 日在特拉华州注册成立,其主要运营基地位于台湾新竹科学园区的竹南。对于投资者而言,需要注意的是 SemiLEDs 在纳斯达克资本市场交易,而非纽约证券交易所,这通常意味着市值规模较小、流动性较差以及对上市合规问题的敏感度更高。([sec.gov](https://www.sec.gov/Archives/edgar/data/1333822/000104746911009728/a2206476z10-k.htm?utm_source=openai))
SemiLEDs 的核心业务围绕高性能 LED 技术。其产品组合包括蓝色、白色、绿色和紫外线 LED 芯片,以及 LED 组件、模块和系统。该公司同时服务于通用照明和专业工业应用。其 SEC 文件和公司材料中提及的终端市场包括街道照明、商业、工业和住宅照明,以及紫外线固化、医疗/美容应用、防伪检测、园艺、建筑照明和娱乐照明等更高价值的细分市场。这种组合使 SemiLEDs 涉足多个 LED 子领域,但相对于全球大型照明和半导体同行而言,该公司规模仍然非常小。([sec.gov](https://www.sec.gov/Archives/edgar/data/1333822/000119312526012216/leds-ex99_1.htm?utm_source=openai))
从商业模式的角度来看,SemiLEDs 似乎采用混合结构运营:一家特拉华州控股公司,其运营活动主要集中在台湾,通过其全资子公司台湾半导体照明有限公司(Taiwan Bandaoti Zhaoming Co., Ltd.)进行,该公司负责 LED 组件的研发、制造、营销和销售。该公司还描述了在美国、台湾、荷兰、日本和国际上的销售业务。这种国际业务布局很重要,但应从利基制造商的角度来看待,它在一个竞争激烈的 LED 行业中竞争,其中价格压力、客户集中度、知识产权限制和规模优势是重要的竞争因素。([sec.gov](https://www.sec.gov/Archives/edgar/data/1333822/000119312525301379/leds-20250831.htm?utm_source=openai))
近期发展突显了该公司面临的严峻运营环境。在 2026 年 1 月和 4 月,SemiLEDs 报告了非常小的季度收入和持续亏损,毛利率仍接近盈亏平衡点,营业利润率则深度为负。一个关键的近期问题出现在 2026 年 1 月 30 日,当时该公司披露纳斯达克已通知其不符合持续上市的最低股东权益要求。对于任何关注该公司的投资者来说,这是一个重大的风险因素。管理层强调模块产品增长和持续的商业紫外线 LED 销售是未来毛利率、经营业绩和现金流的潜在支撑,但迄今为止的证据表明复苏仍不确定。简而言之,SemiLEDs 应被视为一家投机性的美国纳斯达克上市公司,其产品重点狭窄、规模有限,并存在重大的资产负债表和上市风险。([sec.gov](https://www.sec.gov/Archives/edgar/data/0001333822/000119312526153738/leds-ex99_1.htm?utm_source=openai))