Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in SNWV held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | Opaleye Management Inc. | 981K | $17.0M | 0.0% | 11.411% | 2.23% |
| 2 | BlackRock, Inc. | 482K | $8.3M | -1.8% | 5.600% | 0.00% |
| 3 | AWM Investment Company, Inc. | 455K | $7.9M | 0.0% | 5.286% | 0.87% |
| 4 | Praetorian PR LLC | 350K | $6.1M | +32.1% | 4.070% | 2.20% |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 349K | $6.0M | β | 4.057% | 0.00% |
| 6 | Solas Capital Management, LLC | 288K | $5.0M | -2.1% | 3.344% | 2.86% |
| 7 | STIFEL FINANCIAL CORP | 252K | $4.4M | +41.9% | 2.926% | 0.00% |
| 8 | UBS Group AG | 210K | $3.6M | +1029.2% | 2.445% | 0.00% |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | 172K | $3.0M | +2.7% | 1.998% | 0.00% |
| 10 | STATE STREET CORP | 140K | $2.4M | +2.9% | 1.629% | 0.00% |
| 11 | EverSource Wealth Advisors, LLC | 43K | $2.2M | β | 0.501% | 0.07% |
| 12 | NORTHERN TRUST CORP | 63K | $1.1M | +2.3% | 0.730% | 0.00% |
| 13 | VANGUARD FIDUCIARY TRUST CO | 49K | $852K | β | 0.573% | 0.00% |
| 14 | VANGUARD PORTFOLIO MANAGEMENT LLC | 44K | $766K | β | 0.515% | 0.00% |
| 15 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 41K | $705K | +3.8% | 0.474% | 0.01% |
| 16 | GOLDMAN SACHS GROUP INC | 39K | $666K | +2.8% | 0.448% | 0.00% |
| 17 | Stonebridge Wealth Management, LLC | 37K | $643K | -3.1% | 0.432% | 0.62% |
| 18 | BANK OF AMERICA CORP /DE/ | 26K | $441K | +4.9% | 0.297% | 0.00% |
| 19 | MILLENNIUM MANAGEMENT LLC | 25K | $427K | β | 0.287% | 0.00% |
| 20 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 22K | $379K | -10.1% | 0.255% | 0.00% |
| 21 | KIRTLAND HILLS CAPITAL MANAGEMENT, LLC | 3K | $345K | β | 0.032% | 0.11% |
| 22 | CITADEL ADVISORS LLC | 18K | $313K | β | 0.211% | 0.00% |
| 23 | Bank of New York Mellon Corp | 16K | $273K | +1.4% | 0.184% | 0.00% |
| 24 | XTX Topco Ltd | 15K | $254K | β | 0.171% | 0.00% |
| 25 | Nuveen, LLC | 13K | $227K | +44.3% | 0.153% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in SNWV β a direct measure of their conviction.
Filings activity in SNWV during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 61 | +3.4% | 58.00% | 31.95 pp | $74M | 36% |
| Q4 2025 | 59 | +3.5% | 89.95% | 9.05 pp | $115M | 9.1% |
| Q3 2025 | 57 | +21% | 99.00% | +18.01 pp | $127M | +22% |
| Q2 2025 | 47 | +135% | 80.99% | +12.46 pp | $104M | +18% |
| Q1 2025 | 20 | +1900% | 68.53% | +68.51 pp | $88M | +286498% |
| Q4 2024 | 1 | +0.0% | 0.02% | +0.01 pp | $0M | +93% |
| Q3 2024 | 1 | +0.0% | 0.01% | +0.01 pp | $0M | +298% |
| Q2 2021 | 1 | β | 0.00% | β | $0M | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying SNWV stock.
Based on Q1 2026 13F filings, institutional ownership of SANUWAVE Health, Inc. stands at 58.0%, held across 61 reporting institutions.
Opaleye Management Inc. is the largest reported institutional holder of SNWV, with approximately 981,267 shares worth $0.02B as of Q1 2026.
Yes β 2 widely-followed marquee investors appear among the top 25 institutional holders of SNWV, including MILLENNIUM MANAGEMENT LLC, CITADEL ADVISORS LLC.
Our composite Smart Money Score for SNWV is 46 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
16 institutions opened new positions in SNWV during Q1 2026, while 14 fully exited. 6 added to existing positions and 39 trimmed.
SNWV institutional ownership fell by 31.95 percentage points quarter-over-quarter, with a net change of +2 holders.
The top 10 institutions account for 85.5% of all reported 13F value in SNWV, and the top 25 account for 98.4%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
SANUWAVE Health, Inc. (SNWV) Institutional Ownership