SANUWAVE Health SNWV Insider Ownership

Updated Oct 10, 2026

Over the trailing 12 months, SNWV insiders sold $7.2 million worth of shares (287.51K shares) in open-market trades, with no open-market purchases.

• Counted by insider, open-market selling of SNWV stock in the past 12 months came from 2 insiders, with no insider buying.
• Manchester Management Co LLC was SNWV's largest open-market seller in the past 12 months, with $5.01 million of sales (164.81K shares); the latest was on December 12, 2025.
• The latest open-market trade on record is a sale of 10.58K shares for $170,465 by Opaleye Management Inc. (10% owner) on May 1, 2026.
• Per Business Quant data, Sanuwave Health insiders hold 977.29K shares in total based on their latest Form 4 filings, unchanged from 977.29K shares at the end of Q2 2026 and down 12.64% from 1.12Mn shares at the end of Q3 2025.
• By type of ownership, SNWV insiders hold 5.60% of their shares directly (54.73K shares) and 94.40% indirectly (922.57K shares).
• Holdings in Sanuwave Health stock are reported by 4 insiders, the officers, directors and 10% owners who have filed a Form 4 in the past two years.
• SNWV's three largest insider shareholders, per their latest Form 4 filings, are Opaleye Management Inc. (10% owner, 858.57K shares), Manchester Management Co LLC (116.65K shares) and Peter Stegagno (Chief Operating Officer, 2.03K shares).
• The largest insider, Opaleye Management Inc., holds 87.85% of SNWV's insider total.
• Institutional investors held 37.26% of Sanuwave Health stock at the end of Q2 2026, while the latest Form 4 filings of its insiders account for about 11.36%; other investors, including the public, hold roughly 51.38%.
• Over the past 12 months, 8 insiders reported transactions in Sanuwave Health stock in 28 Form 4 filings.
• Insider figures for SNWV include Form 4 filings through October 2, 2026.