Company · UPST · CIK 1647639

Upstart Holdings, Inc. (UPST) SEC filings and CIK.

UPST’s SEC Central Index Key (CIK) is 0001647639, or 1647639 without leading zeros. The SEC’s ticker file lists it as Upstart Holdings, Inc..

Ticker: UPST
CIK: 0001647639
Other tickers: None
Insider transactions, Q3 2026: 12

Insider trading

In Q3 2026, insiders at Upstart Holdings, Inc. reported 12 non-derivative transactions on 9 Forms 3, 4 and 5, including 1 open-market purchases and 10 sales. See every UPST 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 UPST SEC data through the API

Filing history

curl "https://sec-api.dev/api/v1/filings?cik=1647639&limit=10" \
  -H "Authorization: Bearer $SEC_API_KEY"

Company profile

curl "https://sec-api.dev/api/v1/companies/1647639" \
  -H "Authorization: Bearer $SEC_API_KEY"

Reported XBRL facts

curl "https://sec-api.dev/api/v1/facts/1647639?taxonomy=us-gaap&concept=Revenues&limit=10" \
  -H "Authorization: Bearer $SEC_API_KEY"

Ticker to CIK API · SEC filings API · Upstart Holdings, Inc. on SEC.gov

Questions

What is UPST’s CIK number?

UPST’s SEC Central Index Key (CIK) is 0001647639, or 1647639 without leading zeros. The SEC’s ticker file lists it as Upstart Holdings, Inc..

How do I find Upstart Holdings, Inc.’s 10-K?

Request /api/v1/filings?cik=1647639&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/upst.md

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