Company · AOSL · CIK 1387467

ALPHA & OMEGA SEMICONDUCTOR Ltd (AOSL) SEC filings and CIK.

AOSL’s SEC Central Index Key (CIK) is 0001387467, or 1387467 without leading zeros. The SEC’s ticker file lists it as ALPHA & OMEGA SEMICONDUCTOR Ltd.

Ticker: AOSL
CIK: 0001387467
Other tickers: None
Insider transactions, Q3 2026: 6

Insider trading

In Q3 2026, insiders at ALPHA & OMEGA SEMICONDUCTOR Ltd reported 6 non-derivative transactions on 7 Forms 3, 4 and 5, including 0 open-market purchases and 1 sales. See every AOSL insider transaction →

Recent filings we observed

No filings for this CIK appear in our current observation window. The full history is available from the filings endpoint below and on SEC.gov.

Get AOSL SEC data through the API

Filing history

curl "https://sec-api.dev/api/v1/filings?cik=1387467&limit=10" \
  -H "Authorization: Bearer $SEC_API_KEY"

Company profile

curl "https://sec-api.dev/api/v1/companies/1387467" \
  -H "Authorization: Bearer $SEC_API_KEY"

Reported XBRL facts

curl "https://sec-api.dev/api/v1/facts/1387467?taxonomy=us-gaap&concept=Revenues&limit=10" \
  -H "Authorization: Bearer $SEC_API_KEY"

Ticker to CIK API · SEC filings API · ALPHA & OMEGA SEMICONDUCTOR Ltd on SEC.gov

Questions

What is AOSL’s CIK number?

AOSL’s SEC Central Index Key (CIK) is 0001387467, or 1387467 without leading zeros. The SEC’s ticker file lists it as ALPHA & OMEGA SEMICONDUCTOR Ltd.

How do I find ALPHA & OMEGA SEMICONDUCTOR Ltd’s 10-K?

Request /api/v1/filings?cik=1387467&form=10-K, or open the company’s EDGAR page and filter by 10-K. Foreign issuers file 20-F or 40-F instead.

Ticker and CIK: SEC company_tickers.json, cached 2026-11-02. Tickers can move between entities; the CIK identifies the filer.

Plain-text version for agents and LLMs: /companies/aosl.md

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