SEC Form 4
SANUWAVE Health, Inc. (SNWV) insider trading
In the 12 months to Oct 26, 2026, 3 SNWV insiders reported open-market sales of $7.2M across 7 filings; no open-market purchases were filed.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $7.2M
- 7 filings · 3 insiders
- Open-market purchases
- $0
- 0 filings
Who traded SNWV, and when
- Sale
SNWV daily close from Oct 27, 2025 to Oct 26, 2026, between $4.00 and $35.34, last $5.12. 7 sale and 0 purchase filings by 3 insiders, marked at their filing dates. James E. Besser, Other: sold $4.5M across 2 filings, first filed Dec 11, 2025, last Dec 15, 2025. Opaleye Management Inc., 10% owner: sold $2.2M across 3 filings, first filed Apr 21, 2026, last May 4, 2026. Morgan C. Frank, 10% owner: sold $485.5K across 2 filings, first filed Dec 11, 2025, last Dec 15, 2025.
Largest mark · tap a row for others
James E. Besser · Other
Filing 1 of 2 within a week · $4,523,647 total
Sale $4,386,858
142,810 shares at $30.72 avg
Filed Dec 11, 2025 · traded Dec 8
Close on filing date $31.50
James E. Besser · Other
Other
$4.5M soldOpaleye Management Inc. · 10% owner
10% owner
$2.2M soldMorgan C. Frank · 10% owner
10% owner
$485.5K soldOpen-market trades
7 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| James E. Besser | Other | $4.5M | — | 2 | — | |
| Opaleye Management Inc. | 10% owner | $2.2M | — | 3 | — | |
| Morgan C. Frank | 10% owner | $485.5K | — | 2 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Opaleye Management Inc. 10% owner | Sale | 35,581 | $16.14 | $574.2K | Multiple accounts | |
traded | Opaleye Management Inc. 10% owner | Sale | 70,648 | $18.05 | $1.3M | Multiple accounts | |
traded | Opaleye Management Inc. 10% owner | Sale | 16,469 | $20.46 | $337.0K | Multiple accounts | |
traded | James E. Besser Other | Sale | 6,500 | $21.04 | $136.8K | 63,999 | |
traded | Morgan C. Frank 10% owner | Sale | 13,500 | $31.28 | $422.3K | 70,499 | |
traded | James E. Besser Other | Sale | 142,810 | $30.72 | $4.4M | 863,980 | |
traded | Morgan C. Frank 10% owner | Sale | 2,000 | $31.60 | $63.2K | 2,000 |
GET /stocks/filings/vX/form-4?tickers=SNWV&filing_date.gte=2025-10-26&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"SNWV"
],
"issuer_cik": "0001417663",
"owner_cik": "0001595855",
"accession_number": "0001493152-26-021104",
"form_type": "4",
"filing_date": "2026-05-04",
"period_of_report": "2026-04-30",
"issuer_name": "SANUWAVE Health, Inc.",
"issuer_trading_symbol": "SNWV",
"owner_name": "Opaleye Management Inc.",
"is_director": false,
"is_officer": false,
"is_ten_percent_owner": true,
"is_other": false,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock, par value $0.001 per share",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-05-01",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 500,
"transaction_price_per_share": 16.1105,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 5000,
"transaction_value": 8055.249999999999,
"not_subject_to_section_16": true,
"direct_or_indirect": "I",
"nature_of_ownership": "By Managed account",
"footnotes": [
{
"id": "F4",
"description": "The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.00-$16.28 inclusive. The reporting person undertakes to provide, upon request by the SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each price."
},
{
"id": "F2",
"description": "Securities owned by a separately managed account (the \"Managed Account\"). As the portfolio manager of the Managed Account, Opaleye may be deemed to beneficially own the securities owned directly by the Managed Account."
},
{
"id": "F5",
"description": "Opaleye Management Inc. disclaims beneficial ownership of the shares reported herein except to the extent of its pecuniary interest therein, and the filing of this Form 4 shall not be construed as an admission that Opaleye Management Inc. is the beneficial owner of any such shares for purposes of Section 16(a) of the Securities Exchange Act of 1934, as amended, or for any other purpose."
}
]
},
{
"tickers": [
"SNWV"
],
"issuer_cik": "0001417663",
"owner_cik": "0001595855",
"accession_number": "0001493152-26-021104",
"form_type": "4",
"filing_date": "2026-05-04",
"period_of_report": "2026-04-30",
"issuer_name": "SANUWAVE Health, Inc.",
"issuer_trading_symbol": "SNWV",
"owner_name": "Opaleye Management Inc.",
"is_director": false,
"is_officer": false,
"is_ten_percent_owner": true,
"is_other": false,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock, par value $0.001 per share",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-05-01",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 10081,
"transaction_price_per_share": 16.1105,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 853569,
"transaction_value": 162409.95049999998,
"not_subject_to_section_16": true,
"direct_or_indirect": "I",
"nature_of_ownership": "By Opaleye, L.P.",
"footnotes": [
{
"id": "F4",
"description": "The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.00-$16.28 inclusive. The reporting person undertakes to provide, upon request by the SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each price."
},
{
"id": "F1",
"description": "Represents securities owned directly by Opaleye, L.P. (the \"Fund\"). As the investment manager of the Fund, Opaleye Management Inc. may be deemed to beneficially own the securities owned directly by the Fund."
},
{
"id": "F5",
"description": "Opaleye Management Inc. disclaims beneficial ownership of the shares reported herein except to the extent of its pecuniary interest therein, and the filing of this Form 4 shall not be construed as an admission that Opaleye Management Inc. is the beneficial owner of any such shares for purposes of Section 16(a) of the Securities Exchange Act of 1934, as amended, or for any other purpose."
}
]
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.
- Counted once
- When several owners (a fund and its partners, say) report the same trade, it's counted once. Corrected filings replace the originals.
Frequently asked questions
Has SANUWAVE Health, Inc.'s CEO sold stock?
No. Morgan C. Frank (CEO) made no open-market sales filed as CEO in the last 12 months.
How current is SNWV’s insider data?
These are SNWV Form 4 filings from the last year, refreshed daily. The Massive Form 4 API has the full, continuously updated record.
What counts as an open-market buy or sell?
Only purchases and sales at the market price. Option exercises, grants, gifts, and shares withheld for taxes are reported on Form 4 but are left out of the buy and sell totals.
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Track SNWV insider trades with your agent
This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:
Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for SNWV every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.
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