Who owns Ocean Power Technologies, Inc.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of OPTT from SEC Form 13F filings across 82 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 82 institutions disclosed 33.1M shares of Ocean Power Technologies, Inc. worth $8.5M — about 17% of shares outstanding; the largest disclosed holder is VANGUARD CAPITAL MANAGEMENT LLC. Source: SEC Form 13F filings, parsed by EvidInvest.
82
13F holders
$8.5M
value, 2026 filers
17%
of shares outstanding (33.1M sh)
23
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of OPTT's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | VANGUARD CAPITAL MANAGEMENT LLC | 8.9M | $2.3M | 0.0% | 4.6% | +4.0% |
| 2 | UBS Group AG | 6.9M | $1.8M | 0.0% | 3.5% | +72.5% |
| 3 | BlackRock, Inc. | 3.3M | $872,226 | 0.0% | 1.7% | 0.0% |
| 4 | Polar Asset Management Partners Inc.NEW | 3.0M | $797,325 | 0.0% | 1.6% | new |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | 2.2M | $576,201 | 0.0% | 1.1% | +2.0% |
| 6 | VANGUARD FIDUCIARY TRUST CO | 1.4M | $363,499 | 0.0% | 0.7% | +34.2% |
| 7 | Spinnaker Investment Group, LLC | 1.0M | $272,805 | 0.0% | 0.5% | 0.0% |
| 8 | STATE STREET CORP | 982,684 | $257,463 | 0.0% | 0.5% | +21.3% |
| 9 | Cambridge Investment Research Advisors, Inc. | 697,003 | $183 | 0.0% | 0.4% | +134.7% |
| 10 | NORTHERN TRUST CORP | 519,151 | $136,018 | 0.0% | 0.3% | +48.6% |
| 11 | ROYAL BANK OF CANADA | 518,050 | $136,000 | 0.0% | 0.3% | -26.6% |
| 12 | HAMILTON CAPITAL PARTNERS, LLCNEW | 500,195 | $131,051 | 0.0% | 0.3% | new |
| 13 | HighTower Advisors, LLCNEW | 350,100 | $91,726 | 0.0% | 0.2% | new |
| 14 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 256,667 | $67,247 | 0.0% | 0.1% | -29.0% |
| 15 | ESSEX INVESTMENT MANAGEMENT CO LLC | 204,864 | $53,674 | 0.0% | 0.1% | -0.2% |
| 16 | D'Orazio & Associates, Inc. | 197,503 | $51,746 | 0.0% | 0.1% | -51.2% |
| 17 | OneDigital Investment Advisors LLC | 159,532 | $41,797 | 0.0% | 0.1% | -12.5% |
| 18 | Pinnacle Financial Partners, Inc. | 130,500 | $34,191 | 0.0% | 0.1% | +29.9% |
| 19 | SIMPLEX TRADING, LLC | 129,786 | $34,003 | 0.0% | 0.1% | -14.8% |
| 20 | Diversify Advisory Services, LLCNEW | 119,995 | $17,279 | 0.0% | 0.1% | new |
| 21 | DIVERSIFY WEALTH MANAGEMENT, LLC | 119,995 | $17,279 | 0.0% | 0.1% | +101.4% |
| 22 | IMC-Chicago, LLC | 103,241 | $27,049 | 0.0% | 0.1% | +200.6% |
| 23 | GROUP ONE TRADING LLC | 99,787 | $26,144 | 0.0% | 0.1% | -29.0% |
| 24 | Focus Partners WealthNEW | 81,550 | $21,366 | 0.0% | 0% | new |
| 25 | OSAIC HOLDINGS, INC. | 70,203 | $18,372 | 0.0% | 0% | -22.1% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.