FULC SCHEDULE 13G/A: SEC filing

Fulcrum Therapeutics, Inc.

Filed with the SEC on Aug 14, 2026 · accession 0001231919-26-000923

FULC filed a SCHEDULE 13G/A (schedule 13g/a) with the SEC on Aug 14, 2026. Fulcrum Therapeutics, Inc. filed a Schedule 13G/A, an amendment to a passive institutional ownership disclosure. The stock moved +0.8% by the first close after the filing.

Summary of the filing

Fulcrum Therapeutics, Inc. filed a Schedule 13G/A, an amendment to a passive institutional ownership disclosure. The filing indicates a change in a holder's beneficial ownership position in the company.

For details, click here →

Key details

IssuerFulcrum Therapeutics, Inc.

How FULC stock reacted

Close before

$3.71

Aug 13, 2026

First close after

+0.81%

$3.74

5 trading days

+3.77%

$3.85

Since filing

-0.27%

$3.70

✦ Ask GOAX AI about this filing — what it means for FULC, what changed since its last filings and what to watch next.

Try it free for 7 days

🔔 Want to stay updated on new SEC filings for FULC?

Click here

Frequently asked questions

What did FULC file with the SEC on Aug 14, 2026?

FULC filed a SCHEDULE 13G/A (SEC filing). Fulcrum Therapeutics, Inc. filed a Schedule 13G/A, an amendment to a passive institutional ownership disclosure. The filing indicates a change in a holder's beneficial ownership position in the company.

How do I read a SCHEDULE 13G/A?

A report the company filed with the SEC (the US market regulator). Start with the summary, then the key amounts and names. Compare it with the company’s earlier filings.

Why are SEC filings important?

Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A SCHEDULE 13G/A (schedule 13g/a): A report the company filed with the SEC (the US market regulator).

How did FULC stock react to this filing?

FULC closed at $3.71 before the filing and $3.74 on Aug 14, 2026 (+0.81%). Five trading days later: $3.85 (+3.77%).

Other FULC SEC filings

Get alerts when FULC files with the SEC, plus live charts, key levels and news for 13,000+ stocks.

Try SEPT free for 7 days

FULC overview FULC analysis FULC news Latest SEC filings