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Buy Day today: Neutral (48) Mixed market breadth · no major macro event
OPTT

Ocean Power Technologies Inc

Industrials · Specialty Industrial Machinery

1.70$ -16.9% vs. previous close Closing price · As of: Sep 28, 2026

Ownership

Ownership Structure

Who owns Ocean Power Technologies Inc (OPTT)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 98.7% of the shares are freely tradable; institutional investors hold 10.0%.

Institutional ownership ?Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings. 10.0%
Insiders ?Share of the stock held by the executives, founders and major shareholders of the company itself. 3.3%
Float ?Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders. 98.7%
Short % of float ?Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices. 13.7%
Shares Outstanding ?Total number of shares issued. Price times share count gives market cap. 9Mio.

Largest Shareholders

Institutions

Institutions OPTT
Name Stake (%) Shares Change (%) Date
Vanguard Capital Management, LLC 4.40 8,578,522 +0.0 03/31/2026
UBS Group AG 2.04 3,981,442 +134.1 03/31/2026
BlackRock Inc 1.71 3,329,109 +18.1 03/31/2026
Geode Capital Management, LLC 1.11 2,155,409 +15.4 03/31/2026
Spinnaker Investment Group, LLC 0.53 1,041,240 +0.0 06/30/2026
Vanguard Fiduciary Trust Co 0.53 1,034,207 +0.0 03/31/2026
State Street Corp 0.42 810,284 +3.0 03/31/2026

Funds

Funds OPTT
Name Stake (%) Shares Change (%) Date
Vanguard MStar Total Stk Mkt Idx Invest 2.27 6,132,208 +0.0 08/31/2026
Abante Quant Value FI 0.47 1,273,101 +287.9 07/31/2026
Fidelity Extended Market Index 0.44 1,181,905 -0.2 07/31/2026

Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.

Data as of: September 28, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)

Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.

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