Company · LYEL · CIK 1806952

Lyell Immunopharma, Inc. (LYEL) SEC filings and CIK.

LYEL’s SEC Central Index Key (CIK) is 0001806952, or 1806952 without leading zeros. The SEC’s ticker file lists it as Lyell Immunopharma, Inc..

Ticker: LYEL
CIK: 0001806952
Other tickers: None
Insider transactions, Q3 2026: 13

Insider trading

In Q3 2026, insiders at Lyell Immunopharma, Inc. reported 13 non-derivative transactions on 15 Forms 3, 4 and 5, including 0 open-market purchases and 10 sales. See every LYEL 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 LYEL SEC data through the API

Filing history

curl "https://sec-api.dev/api/v1/filings?cik=1806952&limit=10" \
  -H "Authorization: Bearer $SEC_API_KEY"

Company profile

curl "https://sec-api.dev/api/v1/companies/1806952" \
  -H "Authorization: Bearer $SEC_API_KEY"

Reported XBRL facts

curl "https://sec-api.dev/api/v1/facts/1806952?taxonomy=us-gaap&concept=Revenues&limit=10" \
  -H "Authorization: Bearer $SEC_API_KEY"

Ticker to CIK API · SEC filings API · Lyell Immunopharma, Inc. on SEC.gov

Questions

What is LYEL’s CIK number?

LYEL’s SEC Central Index Key (CIK) is 0001806952, or 1806952 without leading zeros. The SEC’s ticker file lists it as Lyell Immunopharma, Inc..

How do I find Lyell Immunopharma, Inc.’s 10-K?

Request /api/v1/filings?cik=1806952&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/lyel.md

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