Company · FBLG · CIK 1958777

FibroBiologics, Inc. (FBLG) SEC filings and CIK.

FBLG’s SEC Central Index Key (CIK) is 0001958777, or 1958777 without leading zeros. The SEC’s ticker file lists it as FibroBiologics, Inc..

Ticker: FBLG
CIK: 0001958777
Other tickers: None
Insider transactions, Q3 2026: 1

Insider trading

In Q3 2026, insiders at FibroBiologics, Inc. reported 1 non-derivative transactions on 3 Forms 3, 4 and 5, including 0 open-market purchases and 0 sales.

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.

Form D offerings

Filed	Type	Amount sold	Industry
2026-09-16	D	$500K	Pharmaceuticals
2026-06-29	D	$3.0M	Pharmaceuticals

Get FBLG SEC data through the API

Filing history

curl "https://sec-api.dev/api/v1/filings?cik=1958777&limit=10" \
  -H "Authorization: Bearer $SEC_API_KEY"

Company profile

curl "https://sec-api.dev/api/v1/companies/1958777" \
  -H "Authorization: Bearer $SEC_API_KEY"

Reported XBRL facts

curl "https://sec-api.dev/api/v1/facts/1958777?taxonomy=us-gaap&concept=Revenues&limit=10" \
  -H "Authorization: Bearer $SEC_API_KEY"

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

Questions

What is FBLG’s CIK number?

FBLG’s SEC Central Index Key (CIK) is 0001958777, or 1958777 without leading zeros. The SEC’s ticker file lists it as FibroBiologics, Inc..

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

Request /api/v1/filings?cik=1958777&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/fblg.md

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