OPTT Ocean Power Technologies Inc
Ocean Power Technologies Inc (OPTT) Institutional Ownership
What the institutions did with OPTT last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC | 8.9M | 26.4% |
| UBS Group AG | 6.9M | 20.3% |
| BlackRock, Inc. | 3.3M | 9.8% |
| Polar Asset Management Partners Inc. | 3.0M | 9.0% |
| GEODE CAPITAL MANAGEMENT, LLC | 2.2M | 6.5% |
| Cambridge Investment Research Advisors, Inc. | 1.4M | 4.1% |
| VANGUARD FIDUCIARY TRUST CO | 1.4M | 4.1% |
| Spinnaker Investment Group, LLC | 1.0M | 3.1% |
| STATE STREET CORP | 982.7K | 2.9% |
| NORTHERN TRUST CORP | 519.2K | 1.5% |
| ROYAL BANK OF CANADA | 518.1K | 1.5% |
| HAMILTON CAPITAL PARTNERS, LLC | 500.2K | 1.5% |
| HighTower Advisors, LLC | 350.1K | 1.0% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 256.7K | 0.8% |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 204.9K | 0.6% |
| D'Orazio & Associates, Inc. | 197.5K | 0.6% |
| OneDigital Investment Advisors LLC | 159.5K | 0.5% |
| Pinnacle Financial Partners, Inc. | 130.5K | 0.4% |
| SIMPLEX TRADING, LLC | 129.8K | 0.4% |
| Diversify Advisory Services, LLC | 120.0K | 0.4% |
| DIVERSIFY WEALTH MANAGEMENT, LLC | 120.0K | 0.4% |
| IMC-Chicago, LLC | 103.2K | 0.3% |
| GROUP ONE TRADING LLC | 99.8K | 0.3% |
| Focus Partners Wealth | 81.6K | 0.2% |
| OSAIC HOLDINGS, INC. | 70.2K | 0.2% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| Polar Asset Management Partners Inc. | New | 0 | 3.0M | +3.0M |
| UBS Group AG | Increased | 4.0M | 6.9M | +2.9M |
| Cambridge Investment Research Advisors, Inc. | Increased | 297.0K | 1.4M | +1.1M |
| HAMILTON CAPITAL PARTNERS, LLC | New | 0 | 500.2K | +500.2K |
| VANGUARD FIDUCIARY TRUST CO | Increased | 1.0M | 1.4M | +353.2K |
| HighTower Advisors, LLC | New | 0 | 350.1K | +350.1K |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 8.6M | 8.9M | +340.6K |
| PEAK6 LLC | Reduced | 320.0K | 63.4K | -256.6K |
| D'Orazio & Associates, Inc. | Reduced | 404.7K | 197.5K | -207.2K |
| ROYAL BANK OF CANADA | Reduced | 705.6K | 518.1K | -187.5K |
| STATE STREET CORP | Increased | 810.3K | 982.7K | +172.4K |
| NORTHERN TRUST CORP | Increased | 349.4K | 519.2K | +169.8K |
| MONETA GROUP INVESTMENT ADVISORS LLC | Sold Out | 157.6K | 0 | -157.6K |
| Diversify Advisory Services, LLC | New | 0 | 120.0K | +120.0K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | 361.4K | 256.7K | -104.7K |
| Private Advisor Group, LLC | Sold Out | 100.0K | 0 | -100.0K |
| Focus Partners Wealth | New | 0 | 81.6K | +81.6K |
| IMC-Chicago, LLC | Increased | 34.3K | 103.2K | +68.9K |
| DIVERSIFY WEALTH MANAGEMENT, LLC | Increased | 59.6K | 120.0K | +60.4K |
| Sequoia Financial Advisors, LLC | New | 0 | 50.0K | +50.0K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Sold Out | 50.0K | 0 | -50.0K |
| Sargent Investment Group, LLC | Sold Out | 45.0K | 0 | -45.0K |
| J.W. COLE ADVISORS, INC. | New | 0 | 43.7K | +43.7K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 2.2M | 2.2M | +43.1K |
| GROUP ONE TRADING LLC | Reduced | 140.6K | 99.8K | -40.8K |
| XTX Topco Ltd | New | 0 | 39.7K | +39.7K |
| ENVESTNET ASSET MANAGEMENT INC | New | 0 | 30.1K | +30.1K |
| Pinnacle Financial Partners, Inc. | Increased | 100.5K | 130.5K | +30.0K |
| SBI Securities Co., Ltd. | Increased | 25.2K | 54.2K | +29.0K |
| OneDigital Investment Advisors LLC | Reduced | 182.3K | 159.5K | -22.7K |
| SIMPLEX TRADING, LLC | Reduced | 152.3K | 129.8K | -22.5K |
| Caprock Group, LLC | New | 0 | 21.0K | +21.0K |
| OSAIC HOLDINGS, INC. | Reduced | 90.2K | 70.2K | -19.9K |
| BANK OF MONTREAL /CAN/ | New | 0 | 18.0K | +18.0K |
| JANE STREET GROUP, LLC | Increased | 42.7K | 60.5K | +17.9K |
| JPMORGAN CHASE & CO | New | 0 | 17.2K | +17.2K |
| MN Wealth Advisors, LLC | Reduced | 27.0K | 10.0K | -17.0K |
| WELLS FARGO & COMPANY/MN | Increased | 1.3K | 18.2K | +16.9K |
| Tower Research Capital LLC (TRC) | Increased | 1.2K | 17.4K | +16.3K |
| MORGAN STANLEY | Reduced | 21.0K | 6.1K | -14.9K |
| Virtu Financial LLC | New | 0 | 14.8K | +14.8K |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC | New | 0 | 14.4K | +14.4K |
| Steward Partners Investment Advisory, LLC | Increased | 603 | 14.5K | +13.9K |
| Hilltop Partners LLC | New | 0 | 13.0K | +13.0K |
| NewEdge Advisors, LLC | Sold Out | 10.0K | 0 | -10.0K |
| Kelsey Financial, LLC | Increased | 27.0K | 37.0K | +10.0K |
| DROMS STRAUSS ADVISORS INC /MO/ /ADV | New | 0 | 10.0K | +10.0K |
| BARCLAYS PLC | New | 0 | 9.9K | +9.9K |
| FNY Investment Advisers, LLC | Sold Out | 3.8K | 0 | -3.8K |
| Grove Bank & Trust | New | 0 | 3.0K | +3.0K |
| Advisory Services Network, LLC | Increased | 65.0K | 68.0K | +3.0K |
| TWO SIGMA SECURITIES, LLC | Reduced | 27.1K | 24.8K | -2.3K |
| Vanguard Personalized Indexing Management, LLC | Reduced | 18.6K | 17.4K | -1.2K |
| CITIGROUP INC | Sold Out | 1.1K | 0 | -1.1K |
| Cape Investment Advisory, Inc. | New | 0 | 500 | +500 |
| ESSEX INVESTMENT MANAGEMENT CO LLC | Reduced | 205.2K | 204.9K | -329 |
| Clearstead Advisors, LLC | New | 0 | 312 | +312 |
| ASSETMARK, INC | Sold Out | 200 | 0 | -200 |
| Continuum Advisory, LLC | New | 0 | 20 | +20 |
| BlackRock, Inc. | Reduced | 3.3M | 3.3M | -1 |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.