SANUWAVE HEALTH INC (SNWV)
Institutional ownership reported to the SEC as of Q2 2026, across 25 quarters.
Institutions report 3,297,396 shares against 8,602,309 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| Solas Capital Management, LLC | $6.1M | 610,968 | 3.27% | 6q | +112.5%+$3.2M |
| AWM Investment Company, Inc. | $4.5M | 454,550 | 0.39% | 6q | HELD |
| Praetorian PR LLC | $4.0M | 395,000 | 1.26% | 4q | +12.9%+$450.0K |
| VANGUARD CAPITAL MANAGEMENT LLC | $3.5M | 352,756 | 0.00% | 2q | +1.1%+$38.8K |
| Opaleye Management Inc. | $3.1M | 306,140 | 0.28% | 6q | -68.8%-$6.8M |
| UBS Group AG | $2.6M | 256,791 | 0.00% | 5q | +22.1%+$465.3K |
| BlackRock, Inc. | $1.6M | 159,867 | 0.00% | 6q | -66.8%-$3.2M |
| CITADEL ADVISORS LLC | $1.2M | 118,946 | 0.00% | 2q | +557.2%+$1.0M |
| GEODE CAPITAL MANAGEMENT, LLC | $861.4K | 86,098 | 0.00% | 5q | -49.9%-$857.4K |
| STATE STREET CORP | $645.6K | 64,564 | 0.00% | 5q | -53.9%-$755.2K |
| VANGUARD FIDUCIARY TRUST CO | $431.0K | 43,097 | 0.00% | 2q | -12.5%-$61.8K |
| MARSHALL WACE, LLP | $421.2K | 42,125 | 0.00% | new | NEW |
| GOLDMAN SACHS GROUP INC | $404.3K | 40,426 | 0.00% | 4q | +5.0%+$19.2K |
| JPMORGAN CHASE & CO | $391.0K | 39,697 | 0.00% | 5q | +1202.4%+$361.0K |
| Stonebridge Wealth Management, LLC | $384.3K | 38,434 | 0.34% | 5q | +3.4%+$12.5K |
| Luxor Capital Group, LP | $372.0K | 37,200 | 0.01% | new | NEW |
| MORGAN STANLEY | $316.2K | 31,619 | 0.00% | 6q | +445.8%+$258.3K |
| KIRTLAND HILLS CAPITAL MANAGEMENT, LLC | $308.6K | 3,100? | 0.09% | 2q | |
| JANE STREET GROUP, LLC | $238.5K | 23,847 | 0.00% | new | NEW |
| AQR CAPITAL MANAGEMENT LLC | $229.1K | 22,908 | 0.00% | new | NEW |
| XTX Topco Ltd | $218.3K | 21,834 | 0.00% | 2q | +48.7%+$71.5K |
| BANK OF AMERICA CORP /DE/ | $185.6K | 18,559 | 0.00% | 6q | -27.2%-$69.4K |
| Squarepoint Ops LLC | $182.4K | 18,243 | 0.00% | new | NEW |
| Jain Global LLC | $173.5K | 17,352 | 0.00% | new | NEW |
| MILLENNIUM MANAGEMENT LLC | $169.2K | 16,925 | 0.00% | 2q | -31.4%-$77.4K |
| NORTHERN TRUST CORP | $164.5K | 16,454 | 0.00% | 5q | -73.8%-$463.4K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $163.4K | 16,340 | 0.00% | new | NEW |
| BNP PARIBAS FINANCIAL MARKETS | $133.0K | 13,304 | 0.00% | 5q | +719.7%+$116.8K |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | $115.0K | 11,500 | 0.00% | 5q | -71.8%-$292.8K |
| FMR LLC | $44.5K | 4,454 | 0.00% | 5q | +284.0%+$32.9K |
| RHUMBLINE ADVISERS | $34.8K | 3,477 | 0.00% | 5q | -58.7%-$49.4K |
| Vanguard Global Advisers, LLC | $32.4K | 3,237 | 0.00% | 2q | HELD |
| State of Alaska, Department of Revenue | $32.0K | 3,235 | 0.00% | 3q | HELD |
| Strategic Investment Solutions, Inc. /IL | $13.3K | 1,333 | 0.00% | 7q | HELD |
| Tower Research Capital LLC (TRC) | $9.1K | 911 | 0.00% | 5q | -29.1%-$3.7K |
| Arax Advisory Partners | $6.5K | 646 | 0.00% | new | NEW |
| AdvisorNet Financial, Inc | $5.7K | 567 | 0.00% | 5q | HELD |
| BARCLAYS PLC | $3.8K | 380 | 0.00% | 5q | -73.9%-$10.8K |
| JONES FINANCIAL COMPANIES LLLP | $1.1K | 133 | 0.00% | 3q | HELD |
| ROYAL BANK OF CANADA | $1.0K | 149 | 0.00% | 5q | -46.8% |
| US BANCORP \DE\ | $660 | 66 | 0.00% | 6q | HELD |
| Russell Investments Group, Ltd. | $490 | 49 | 0.00% | 4q | -91.6%-$5.3K |
| PNC Financial Services Group, Inc. | $400 | 40 | 0.00% | new | NEW |
| NewEdge Advisors, LLC | $260 | 26 | 0.00% | new | NEW |
| Essential Partners LLC | $130 | 13 | 0.00% | new | NEW |
| OSAIC HOLDINGS, INC. | $120 | 12 | 0.00% | 4q | HELD |
| EverSource Wealth Advisors, LLC | $110 | 11 | 0.00% | 2q | +57.1% |
| MERCER GLOBAL ADVISORS INC /ADV | $90 | 9 | 0.00% | new | NEW |
| Integrated Wealth Concepts LLC | $20 | 2 | 0.00% | new | NEW |
| IFP Advisors, Inc | $10 | 1 | 0.00% | new | NEW |
| Caitong International Asset Management Co., Ltd | $10 | 1 | 0.00% | 2q | -66.7% |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-08-14 | 13G/A | Solas Capital Management, LLCwith 1 co-filers | 7.1% |
| 2026-07-31 | 13G/A | Opaleye Management Inc.with 2 co-filers | 3.6% |
| 2026-07-30 | 13G/A | BlackRock, Inc. | 1.5% |
What the company announced
Form 8-K filings from the last 120 days, showing only the items worth a reader's attention. Earnings releases, exhibit attachments and general disclosures are filed constantly and are left out. Filed is when the SEC received it; event is the date the company says the thing happened.
| Filed | Event date | What | Source |
|---|---|---|---|
| 2026-09-25 | 2026-09-23 | Delisting notice | filing |
What the insiders did
Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.
Ten percent owners and entities
Usually an institution that crossed a reporting threshold, or a company taking a strategic stake, rather than an individual with a view.
| Date | Insider | Role | Side | Shares | Value |
|---|---|---|---|---|---|
| 2026-04-28 | Opaleye Management Inc. | 10% owner | Sold | 46,288 | $854.8K ×2 |
| 2026-04-29 | Opaleye Management Inc. | 10% owner | Sold | 24,360 | $420.2K ×2 |
| 2026-04-30 | Opaleye Management Inc. | 10% owner | Sold | 25,000 | $403.8K ×2 |
| 2026-04-17 | Opaleye Management Inc. | 10% owner | Sold | 16,267 | $332.8K ×2 |
| 2026-05-01 | Opaleye Management Inc. | 10% owner | Sold | 10,581 | $170.5K ×2 |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 51 | $33.2M | 3,297,396 | 14 | 14 | 15 | 0.0% |
| Q1 2026 | 62 | $72.3M | 4,162,766 | 12 | 20 | 12 | 0.0% |
| Q4 2025 | 59 | $115.9M | 3,884,569 | 10 | 20 | 18 | 0.0% |
| Q3 2025 | 59 | $127.4M | 3,389,528 | 15 | 16 | 13 | 0.0% |
| Q2 2025 | 46 | $106.3M | 3,226,929 | 33 | 3 | 6 | 0.0% |
| Q1 2025 | 19 | $88.5M | 2,501,719 | 18 | 0 | 0 | 0.0% |
| Q4 2024 | 1 | $30.7K | 1,333 | 1 | 0 | 0 | 0.0% |
| Q3 2024 | 1 | $15.9K | 500,000 | 0 | 0 | 0 | 0.0% |
| Q2 2024 | 1 | $8.8K | 500,000 | 0 | 0 | 0 | 0.0% |
| Q4 2023 | 1 | $6.5K | 500,000 | 1 | 0 | 0 | 0.0% |
| Q2 2022 | 2 | $28.0K | 363,450 | 0 | 0 | 0 | 0.0% |
| Q1 2022 | 1 | $48.0K | 343,450 | 0 | 0 | 0 | 0.0% |
| Q4 2021 | 2 | $87.0K | 535,757 | 1 | 0 | 0 | 0.0% |
| Q3 2021 | 1 | $2.0K | 20,000 | 0 | 0 | 0 | 0.0% |
| Q2 2021 | 1 | $4.0K | 20,000 | 0 | 0 | 0 | 0.0% |
| Q1 2021 | 1 | $4.0K | 20,000 | 0 | 0 | 0 | 0.0% |
| Q4 2020 | 2 | $199.0K | 1,076,438 | 1 | 0 | 1 | 0.0% |
| Q3 2020 | 1 | $287.0K | 1,333,354 | 0 | 0 | 1 | 0.0% |
| Q2 2020 | 1 | $374.0K | 1,426,644 | 0 | 1 | 0 | 0.0% |
| Q1 2020 | 1 | $226.0K | 1,128,397 | 0 | 1 | 0 | 0.0% |
| Q4 2019 | 2 | $246.0K | 1,532,155 | 0 | 0 | 0 | 0.0% |
| Q3 2019 | 2 | $237.0K | 1,532,155 | 1 | 0 | 0 | 0.0% |
| Q2 2019 | 2 | $108.0K | 784,584 | 0 | 0 | 1 | 0.0% |
| Q1 2019 | 2 | $163.0K | 801,361 | 0 | 1 | 0 | 0.0% |
| Q4 2018 | 2 | $157.0K | 681,328 | 0 | 0 | 0 | 0.0% |