SEPTInvestingStart Free

SNWV SCHEDULE 13G/A: SEC filing

AWM Investment Company, Inc.

Filed with the SEC on · accession 0001535264-26-000059

SNWV filed a SCHEDULE 13G/A (schedule 13g/a) with the SEC on Nov 13, 2026. A report the company filed with the SEC (the US market regulator). The stock moved +15.2% by the first close after the filing.

Summary of the filing

AWM Investment Company, Inc. filed an amended Schedule 13G reporting beneficial ownership of 427,765 shares (4.9%) of SANUWAVE Health, Inc. common stock as of September 30, 2026, held on behalf of four Special Situations funds it advises.

For details, click here →

Key details

Total shares beneficially ownedshares 428K
Percent of class ownedpercent 5
Filer / investment adviserAWM Investment Company, Inc.
IssuerSANUWAVE Health, Inc.
Fund holding 70,270 sharesSpecial Situations Cayman Fund, L.P.
Fund holding 246,961 sharesSpecial Situations Fund III QP, L.P.
Fund holding 54,162 sharesSpecial Situations Private Equity Fund, L.P.
Fund holding 56,372 sharesSpecial Situations Life Sciences Fund, L.P.
Executive vice president, awm investment company, inc.Adam C. Stettner
Controlling principal, awm investment company, inc.David M. Greenhouse

How SNWV stock reacted

Close before

$1.58

Nov 12, 2026

First close after

+15.19%

$1.82

5 trading days

—

Since filing

—

✦ Ask GOAX AI about this filing — what it means for SNWV, 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 SNWV?

Click here

Frequently asked questions

What did SNWV file with the SEC on Nov 13, 2026?

SNWV filed a SCHEDULE 13G/A (SEC filing). AWM Investment Company, Inc. filed an amended Schedule 13G reporting beneficial ownership of 427,765 shares (4.9%) of SANUWAVE Health, Inc. common stock as of September 30, 2026, held on behalf of four Special Situations funds it advises.

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 SNWV stock react to this filing?

SNWV closed at $1.58 before the filing and $1.82 on Nov 13, 2026 (+15.19%).

Other SNWV SEC filings

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

Try SEPT free for 7 days
SNWV overviewSNWV analysisSNWV newsLatest SEC filings