Ocean Power Technologies

OPTT • AMEX

Ocean Power Technologies is a electrical equipment & parts company in the industrials sector on AMEX, led by Philipp Stratmann, with a market cap of $81.3M. As of Q3 2025, 10% of shares are held by 56 institutional investors, with VANGUARD GROUP INC as the largest holder at 3.79%.

Chief Executive OfficerPhilipp Stratmann

Market Cap$81.3M

Electrical Equipment & Parts

Industrials

Employees72.0

Websiteoceanpowertechnologies.com

Country

United States of America

Overview

Overview of institutional ownership in OPTT as of Q3 2025 with a market cap of $92.2M

All Institutions

Institutions: 56
Value Held: $9.4M
Shares Held: 18.6M
Avg Position: $167.7K
Median Position: $9.8K

Hedge Funds

Hedge Funds: 4
Value Held: $1.0M
Shares Held: 2.0M
Avg Position: $256.8K
Median Position: $186.9K

Ownership Breakdown

Institutional (non-HF)

9.07%

$8.4M

Hedge Funds

1.11%

$1.0M

Retail & Other

89.81%

$82.8M

Based on market cap of $92.2M as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in OPTT as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
VANGUARD GROUP INC Institution	Salim Ramji CEO	$3.5M 0.00% of portfolio	3.79% 6.9M shares	≤ Q2 2013 Held for 12y 5m+	$6.69T
B BlackRock, Inc. Institution	-	$1.4M 0.00% of portfolio	1.54% 2.8M shares	Q4 2020 Held for 4y 11m	$5.67T
GEODE CAPITAL MANAGEMENT LLC ETF Provider	David Kenneth Lane CEO	$933.4K 0.00% of portfolio	1.01% 1.9M shares	Q4 2020 Held for 4y 11m	$1.57T
J JANE STREET GROUP, LLC Institution	-	$652.3K 0.00% of portfolio	0.71% 1.3M shares	Q1 2022 Held for 3y 8m	$84.1B
Connective Capital Management, LLC Hedge Fund•Long/Short	Robert Magnus Romero CEO	$593.5K 0.55% of portfolio	0.64% 1.2M shares	Q3 2025 Held for 2 months	$108.7M
STATE STREET CORP Institution	Ronald P. O'Hanley CEO	$396.1K 0.00% of portfolio	0.43% 786.4K shares	Q2 2021 Held for 4y 5m	$2.88T
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	-	$380.7K 0.00% of portfolio	0.41% 755.8K shares	Q1 2021 Held for 4y 8m	$67.9B
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant	Peter Fitzhugh Brown CEO	$244.6K 0.00% of portfolio	0.27% 485.6K shares	Q2 2025 Held for 5 months	$75.8B
NORTHERN TRUST CORP Institution	Michael G. O'Grady CEO	$139.5K 0.00% of portfolio	0.15% 276.9K shares	Q4 2020 Held for 4y 11m	$782.01B
S Squarepoint Ops LLC Hedge Fund•Quant	Michael Gottlieb CIO	$129.3K 0.00% of portfolio	0.14% 256.7K shares	Q3 2025 Held for 2 months	$46.9B

Net Capital Flow

Institutional buying and selling activity for OPTT in Q3 2025

Traded: +$1.8M
Buyers: 32
Sellers: 9
Total Bought: +$2.5M
Total Sold: −$762.5K
Avg Position: $153.9K

Biggest Buyers

Institution	Net Bought	Current Position
Connective Capital Management, LLC Hedge Fund•Long/Short	+$593.5K +1.2M shares	$593.5K 1.2M shares
J JANE STREET GROUP, LLC Institution	+$328.4K +651.9K shares	$652.3K 1.3M shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	+$319.1K +633.5K shares	$380.7K 755.8K shares
VANGUARD GROUP INC Institution	+$276.9K +549.3K shares	$3.5M 6.9M shares
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant	+$175.6K +348.5K shares	$244.6K 485.6K shares
S Squarepoint Ops LLC Hedge Fund•Quant	+$129.3K +256.7K shares	$129.3K 256.7K shares
STATE STREET CORP Institution	+$126.0K +250.2K shares	$396.1K 786.4K shares
H HRT FINANCIAL LLC Institution	+$118.8K +235.9K shares	$118.8K 235.9K shares
ESSEX INVESTMENT MANAGEMENT CO LLC Long Only Manager	+$103.3K +205.1K shares	$103.3K 205.1K shares
V Virtu Financial LLC Institution	+$73.5K +145.8K shares	$73.5K 145.8K shares

Biggest Sellers

Institution	Net Sold	Current Position
UBS Group AG Institution	−$519.1K −1.0M shares	$72.3K 143.4K shares
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	−$127.7K −268.9K shares	Sold Off 0 shares
J J.W. COLE ADVISORS, INC. Institution	−$50.4K −100.0K shares	$37.9K 75.2K shares
B Baader Bank INC Institution	−$29.4K −100.0K shares	Sold Off 0 shares
NORTHERN TRUST CORP Institution	−$18.7K −37.1K shares	$139.5K 276.9K shares
S SIMPLEX TRADING, LLC Institution	−$14.9K −29.6K shares	$88.1K 174.9K shares
BANK OF AMERICA CORP /DE/ Institution	−$1.0K −2.0K shares	$3.2K 6.3K shares
RAYMOND JAMES FINANCIAL INC RIA/Wealth	−$940.0 −2.0K shares	Sold Off 0 shares
CITIGROUP INC Institution	−$415.0 −873.0 shares	Sold Off 0 shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited OPTT in Q3 2025

New Positions: 5
New Value: $754.3K
Exited Positions: 4
Exited Value: $158.4K

New Positions

Institution	Position Value
Connective Capital Management, LLC Hedge Fund•Long/Short	$593.5K 1.2M shares
ESSEX INVESTMENT MANAGEMENT CO LLC Long Only Manager	$103.3K 205.1K shares
A Abich Financial Wealth Management LLC RIA/Wealth	$24.7K 49.0K shares
Legato Capital Management LLC Fund of Funds	$24.3K 48.3K shares
Western Wealth Management, LLC RIA/Wealth	$8.6K 17.0K shares

Exited Positions

Institution	Previous Position
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	$127.7K 268.9K shares
B Baader Bank INC Institution	$29.4K 100.0K shares
RAYMOND JAMES FINANCIAL INC RIA/Wealth	$940.0 2.0K shares
CITIGROUP INC Institution	$415.0 873.0 shares

Options Activity

Institutions with the largest Call and Put options positions in OPTT as of Q3 2025

Call Positions: 4
Call Value: $415.4K
Put Positions: 4
Put Value: $189.0K

Call Positions

Institution	Position Value
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$330.1K 6.6K contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$61.8K 1.2K contracts
W WOLVERINE TRADING, LLC Institution	$16.1K 319.0 contracts
J JANE STREET GROUP, LLC Institution	$7.4K 147.0 contracts

Put Positions

Institution	Position Value
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$86.2K 1.7K contracts
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$79.3K 1.6K contracts
W WOLVERINE TRADING, LLC Institution	$17.3K 342.0 contracts
J JANE STREET GROUP, LLC Institution	$6.3K 125.0 contracts

Most Committed Institutions

Institutions with OPTT as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
Connective Capital Management, LLC Hedge Fund•Long/Short	Robert Magnus Romero CEO	0.55% $593.5K	0.64% 1.2M shares	Q3 2025 Held for 2 months	$108.7M
ESSEX INVESTMENT MANAGEMENT CO LLC Long Only Manager	Nancy Beth Prial CEO	0.02% $103.3K	0.11% 205.1K shares	Q3 2025 Held for 2 months	$652.5M
A Abich Financial Wealth Management LLC RIA/Wealth	Abraham Abich CEO	0.01% $24.7K	0.03% 49.0K shares	Q3 2025 Held for 2 months	$268.8M
Penbrook Management LLC RIA/Wealth	Robert Stephen Anderson Managing Partner	0.01% $7.6K	0.01% 15.0K shares	Q4 2024 Held for 11 months	$143.0M
V Virtu Financial LLC Institution	-	0.00% $73.5K	0.08% 145.8K shares	Q3 2024 Held for 1y 2m	$1.6B
Richmond Brothers, Inc. RIA/Wealth	Matthew Jeremy Curfman President	0.00% $7.0K	0.01% 14.0K shares	Q1 2025 Held for 8 months	$158.4M
R Squared Ltd Private Equity	-	0.00% $7.5K	0.01% 15.0K shares	Q3 2025 Held for 2 months	$232.5M
Sargent Investment Group, LLC RIA/Wealth	Teresa Marie Schafer CCO	0.00% $22.2K	0.02% 44.0K shares	Q3 2024 Held for 1y 2m	$698.1M
P PROMETHIUM ADVISORS,LLC RIA/Wealth	Christopher Francis Poch Founder	0.00% $5.0K	0.01% 10.0K shares	Q3 2024 Held for 1y 2m	$175.2M
Legato Capital Management LLC Fund of Funds	Victor Louis Hymes CEO	0.00% $24.3K	0.03% 48.3K shares	Q3 2025 Held for 2 months	$915.6M

Hedge Fund Spotlight

Discover hedge funds investing in OPTT

RENAISSANCE TECHNOLOGIES LLC

Hedge Fund • Quant

Portfolio ManagerPeter Fitzhugh Brown

Portfolio Value: $75.8B
Positions: 3,419
Last Reported: Q3 2025

Sector Allocation

Position in Ocean Power Technologies

Market Value: $244.6K
Shares Held: 485.6K
Portfolio Weight: 0.00%
Owned Since: 2025-Q2

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