Who owns SANUWAVE Health (SNWV)
Which tracked institutional funds hold SNWV, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See SNWV company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on SNWV is one-sided between 2026-Q1 and 2026-Q2: 3 added or opened and 18 trimmed or exited — on balance reducing.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
SNWV’s largest tracked holder by dollar value, VANGUARD GROUP INC, sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in SNWV divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 48 tracked filers holding SNWV, 25 increased or opened the position and 42 reduced or closed it; over the same quarter, open-market insider Form 4s were net sales.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in SNWV between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
Full exits 2
- STIFEL FINANCIAL CORP$4M
- VANGUARD PORTFOLIO MANAGEMENT LLC$766K
Largest adds
- Solas Capital Management, LLC$1M
- JPMORGAN CHASE & CO$338K
- CITADEL ADVISORS LLC$282K
Largest trims
- Opaleye Management Inc.$14M
- BlackRock, Inc.$7M
- AWM Investment Company, Inc.$3M
- VANGUARD CAPITAL MANAGEMENT LLC$3M
- EverSource Wealth Advisors, LLC$2M
- GEODE CAPITAL MANAGEMENT, LLC$2M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| Solas Capital Management, LLC added | 610,968 | $6M | 10.0% | 2026-Q2 |
| AWM Investment Company, Inc. | 454,550 | $5M | 7.5% | 2026-Q2 |
| Praetorian PR LLC added | 395,000 | $4M | 6.5% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 352,756 | $4M | 5.8% | 2026-Q2 |
| Opaleye Management Inc. trimmed | 306,140 | $3M | 5.0% | 2026-Q2 |
| UBS Group AG added | 256,791 | $3M | 4.2% | 2026-Q2 |
| BlackRock, Inc. trimmed | 159,867 | $2M | 2.6% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC trimmed | 86,098 | $861K | 1.4% | 2026-Q2 |
| CITADEL ADVISORS LLC added | 59,473 | $595K | 1.0% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO trimmed | 43,097 | $431K | 0.7% | 2026-Q2 |
| MARSHALL WACE, LLP added | 42,125 | $421K | 0.7% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC added | 40,426 | $404K | 0.7% | 2026-Q2 |
| JPMORGAN CHASE & CO added | 39,697 | $391K | 0.6% | 2026-Q2 |
| Stonebridge Wealth Management, LLC added | 38,434 | $384K | 0.6% | 2026-Q2 |
| Luxor Capital Group, LP new | 37,200 | $372K | 0.6% | 2026-Q2 |
| STATE STREET CORP trimmed | 32,282 | $323K | 0.5% | 2026-Q2 |
| MORGAN STANLEY added | 31,619 | $316K | 0.5% | 2026-Q2 |
| KIRTLAND HILLS CAPITAL MANAGEMENT, LLC added | 3,100 | $309K | 0.5% | 2026-Q2 |
| JANE STREET GROUP, LLC added | 23,847 | $238K | 0.4% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC new | 22,908 | $229K | 0.4% | 2026-Q2 |
| XTX Topco Ltd added | 21,834 | $218K | 0.4% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ trimmed | 18,559 | $186K | 0.3% | 2026-Q2 |
| Squarepoint Ops LLC new | 18,243 | $182K | 0.3% | 2026-Q2 |
| Jain Global LLC new | 17,352 | $174K | 0.3% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC trimmed | 16,925 | $169K | 0.3% | 2026-Q2 |
| NORTHERN TRUST CORP trimmed | 16,454 | $165K | 0.3% | 2026-Q2 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP new | 16,340 | $163K | 0.3% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS added | 13,304 | $133K | 0.2% | 2026-Q2 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC trimmed | 11,500 | $115K | 0.2% | 2026-Q2 |
| FMR LLC added | 4,454 | $45K | 0.1% | 2026-Q2 |
| RHUMBLINE ADVISERS trimmed | 3,477 | $35K | 0.1% | 2026-Q2 |
| Vanguard Global Advisers, LLC | 3,237 | $32K | 0.1% | 2026-Q2 |
| Strategic Investment Solutions, Inc. /IL | 1,333 | $13K | 0.0% | 2026-Q2 |
| Tower Research Capital LLC (TRC) trimmed | 911 | $9K | 0.0% | 2026-Q2 |
| Arax Advisory Partners added | 646 | $6K | 0.0% | 2026-Q2 |
| AdvisorNet Financial, Inc | 567 | $6K | 0.0% | 2026-Q2 |
| BARCLAYS PLC trimmed | 380 | $4K | 0.0% | 2026-Q2 |
| JONES FINANCIAL COMPANIES LLLP | 133 | $1K | 0.0% | 2026-Q2 |
| ROYAL BANK OF CANADA trimmed | 149 | $1K | 0.0% | 2026-Q2 |
| US BANCORP \DE\ | 66 | $660 | 0.0% | 2026-Q2 |
| Russell Investments Group, Ltd. trimmed | 49 | $490 | 0.0% | 2026-Q2 |
| PNC Financial Services Group, Inc. added | 40 | $400 | 0.0% | 2026-Q2 |
| NewEdge Advisors, LLC | 26 | $260 | 0.0% | 2026-Q2 |
| Essential Partners LLC new | 13 | $130 | 0.0% | 2026-Q2 |
| OSAIC HOLDINGS, INC. | 12 | $120 | 0.0% | 2026-Q2 |
| EverSource Wealth Advisors, LLC trimmed | 11 | $110 | 0.0% | 2026-Q2 |
| Caitong International Asset Management Co., Ltd trimmed | 1 | $10 | 0.0% | 2026-Q2 |
| IFP Advisors, Inc new | 1 | $10 | 0.0% | 2026-Q2 |
| VANGUARD GROUP INC added | 445,206 | $13M | 21.8% | 2025-Q4 stale (2 quarters behind) |
| STIFEL FINANCIAL CORP added | 251,633 | $4M | 7.1% | 2026-Q1 stale (1 quarter behind) |
| CenterBook Partners LP added | 87,947 | $3M | 5.4% | 2025-Q3 stale (3 quarters behind) |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 38,359 | $1M | 2.1% | 2025-Q2 stale (4 quarters behind) |
| Huntleigh Advisors, Inc. new | 33,445 | $998K | 1.6% | 2025-Q4 stale (2 quarters behind) |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 44,328 | $766K | 1.3% | 2026-Q1 stale (1 quarter behind) |
| RICE HALL JAMES & ASSOCIATES, LLC trimmed | 25,156 | $751K | 1.2% | 2025-Q4 stale (2 quarters behind) |
| Evernest Financial Advisors, LLC trimmed | 17,600 | $660K | 1.1% | 2025-Q3 stale (3 quarters behind) |
| Shay Capital LLC new | 14,200 | $424K | 0.7% | 2025-Q4 stale (2 quarters behind) |
| LAZARD ASSET MANAGEMENT LLC trimmed | 13,266 | $396K | 0.6% | 2025-Q4 stale (2 quarters behind) |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 21,935 | $379K | 0.6% | 2026-Q1 stale (1 quarter behind) |
| Bank of New York Mellon Corp added | 15,817 | $273K | 0.4% | 2026-Q1 stale (1 quarter behind) |
| Corient Private Wealth LLC new | 8,604 | $257K | 0.4% | 2025-Q4 stale (2 quarters behind) |
| Sanctuary Advisors, LLC new | 6,753 | $253K | 0.4% | 2025-Q3 stale (3 quarters behind) |
| Nuveen, LLC added | 13,136 | $227K | 0.4% | 2026-Q1 stale (1 quarter behind) |
| HRT FINANCIAL LP trimmed | 6,870 | $205K | 0.3% | 2025-Q4 stale (2 quarters behind) |
| SALEM INVESTMENT COUNSELORS INC new | 8,100 | $140K | 0.2% | 2026-Q1 stale (1 quarter behind) |
| DEUTSCHE BANK AG\ added | 6,602 | $114K | 0.2% | 2026-Q1 stale (1 quarter behind) |
| CDC Financial, Inc. new | 6,500 | $112K | 0.2% | 2026-Q1 stale (1 quarter behind) |
| MetLife Investment Management, LLC | 4,490 | $78K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added | 3,555 | $61K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| Farther Finance Advisors, LLC new | 1,517 | $57K | 0.1% | 2025-Q3 stale (3 quarters behind) |
| State of Alaska, Department of Revenue | 3,235 | $55K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| NEW YORK STATE COMMON RETIREMENT FUND | 3,100 | $54K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| WELLS FARGO & COMPANY/MN trimmed | 2,700 | $47K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| Police & Firemen's Retirement System of New Jersey | 2,126 | $37K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| RAYMOND JAMES FINANCIAL INC new | 411 | $14K | 0.0% | 2025-Q2 stale (4 quarters behind) |
| Ameritas Investment Partners, Inc. | 716 | $12K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| Legal & General Group Plc trimmed | 639 | $11K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| CWM, LLC added | 507 | $9K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| NISA INVESTMENT ADVISORS, LLC new | 500 | $9K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| Quarry LP added | 244 | $7K | 0.0% | 2025-Q4 stale (2 quarters behind) |
| Financial Management Professionals, Inc. | 417 | $7K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| AMALGAMATED BANK trimmed | 234 | $7K | 0.0% | 2025-Q4 stale (2 quarters behind) |
| BESSEMER GROUP INC new | 246 | $7K | 0.0% | 2025-Q4 stale (2 quarters behind) |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 402 | $7K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| CITIGROUP INC added | 390 | $7K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| QUADRANT CAPITAL GROUP LLC new | 87 | $3K | 0.0% | 2025-Q3 stale (3 quarters behind) |
| CURIO WEALTH, LLC new | 35 | $1K | 0.0% | 2025-Q3 stale (3 quarters behind) |
| SIGNATUREFD, LLC new | 27 | $1K | 0.0% | 2025-Q3 stale (3 quarters behind) |
| Sterling Capital Management LLC | 46 | $795 | 0.0% | 2026-Q1 stale (1 quarter behind) |
| GAMMA Investing LLC added | 13 | $225 | 0.0% | 2026-Q1 stale (1 quarter behind) |
| Root Financial Partners, LLC new | 7 | $121 | 0.0% | 2026-Q1 stale (1 quarter behind) |
| Transamerica Financial Advisors, LLC new | 5 | $86 | 0.0% | 2026-Q1 stale (1 quarter behind) |
| Wealthspire Advisors, LLC new | 2 | $75 | 0.0% | 2025-Q3 stale (3 quarters behind) |
| Advisory Services Network, LLC new | 3 | $52 | 0.0% | 2026-Q1 stale (1 quarter behind) |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | — | 0.0% | 2025-Q2 stale (4 quarters behind) |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.