RFsemiTechnologies,Inc. — Investor Relations & Filings
RFsemi Technologies, Inc. is a developer and manufacturer of semiconductor devices and related technology products. The company's core semiconductor offerings include high-volume production of Electret Condenser Microphones (ECM) and Transient Voltage Suppressors (TVS). It is expanding into next-generation technologies, including MEMS microphones for AI applications and power semiconductors such as Silicon Carbide (SiC) and Gallium Nitride (GaN). Leveraging its 6-inch fabrication facility, RFsemi provides specialized foundry services. The company's portfolio also includes lithium iron phosphate batteries for automotive and energy storage systems (ESS), LED lighting solutions under the Lungo brand featuring proprietary semiconductor driving technology, and UV sterilization lamps.
Recent filings
| Filing | Released | Lang | Actions |
|---|---|---|---|
| [기재정정]분기보고서 (2026.03) | 2026-04-27 | Korean | |
| 분기보고서 (2026.03) | 2026-04-27 | Korean | |
| 사외이사의선임ㆍ해임또는중도퇴임에관한신고 | 2026-03-30 | Korean | |
| 정기주주총회결과 | 2026-03-30 | Korean | |
| [기재정정]사업보고서 (2025.12) | 2026-03-27 | Korean | |
| [기재정정]사업보고서 (2025.12) | 2026-03-27 | Korean |
| ID | Filing | Released | Lang | Actions | |
|---|---|---|---|---|---|
|
2026
15 filings
| |||||
| 37315359 | [기재정정]분기보고서 (2026.03) | 2026-04-27 | Korean | ||
| 37264311 | 분기보고서 (2026.03) | 2026-04-27 | Korean | ||
| 33084342 | 사외이사의선임ㆍ해임또는중도퇴임에관한신고 | 2026-03-30 | Korean | ||
| 33084313 | 정기주주총회결과 | 2026-03-30 | Korean | ||
| 33058274 | [기재정정]사업보고서 (2025.12) | 2026-03-27 | Korean | ||
| 33058010 | [기재정정]사업보고서 (2025.12) | 2026-03-27 | Korean | ||
| 33044030 | [기재정정]사업보고서 (2025.12) | 2026-03-26 | Korean | ||
| 33038406 | 사업보고서 (2025.12) | 2026-03-25 | Korean | ||
| 33025146 | 감사보고서제출 | 2026-03-24 | Korean | ||
| 33025145 | 기타시장안내 ('25사업연도 감사의견 거절 관련 상장폐지 절차 미진행) | 2026-03-24 | Korean | ||
| 32991712 | 기타경영사항(자율공시) (감사보고서 제출 지연) | 2026-03-20 | Korean | ||
| 32991247 | 사업보고서제출기한연장신고서 (2025.12) | 2026-03-20 | Korean | ||
| 32942020 | 주주총회집중일개최사유신고 | 2026-03-13 | Korean | ||
| 32941534 | 주주총회소집공고 | 2026-03-13 | Korean | ||
| 32941443 | 주주총회소집결의 | 2026-03-13 | Korean | ||
Market data
Market data not available
Price history
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RFsemiTechnologies,Inc. via the API
Pull this company's filings, identifiers, and metadata as JSON or Markdown. Authenticate with your API key, then query by company ID, ISIN, or LEI. Full schema documented in the OpenAPI spec.
Endpoints
| GET | /api/companies/17159/ | Company identity, sector, listing, identifiers |
| GET | /api/filings/?company=17159 | Paginated list of all filings (filterable by type, date, language) |
| GET | /api/filings/{id}/ | Single filing — metadata, document URL, processing status |
| GET | /api/filings/{id}/markdown/ | Filing content as Markdown (PDF → text/tables/figures) |
| GET | /api/isins/?company=17159 | All ISINs registered to this company |
| GET | /api/filing-types/ | Reference: every filing-type code + category |
cURL
$ curl https://api.financialreports.eu/api/filings/?company=17159 \ -H "x-api-key: $FR_API_KEY" \ -H "Accept: application/json"
Python
import requests r = requests.get( "https://api.financialreports.eu/api/filings/", params={"company": 17159}, headers={"x-api-key": API_KEY}, ) filings = r.json()["results"]
MCP server
// MCP server URL https://mcp.financialfilings.com/mcp // Once connected, the LLM can query this company directly: "Pull the latest 5 filings for RFsemiTechnologies,Inc. (id: 17159)"
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