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OPTT · AMEX · Electrical Equipment & Parts

Ocean Power Technologies

Autonomous offshore power, uncrewed vessels, and maritime-domain-awareness systems.

$0.1676
After-hours close−0.00 (−0.48%)
At close$0.1684(−5.87%)

Breakdown13F · Form 4

Institutions 17.06%Insiders

Shares outstanding 194.10M · Float 171.74M · 88.5% free float

Top shareholders13F · 13D/G · Form 4

HolderShares% outstandingFormFiled
Alumni Capital LP,10.42M9.48%13GSep 24, 2024
Vanguard Capital Management LLC8.92M4.60%13FAug 13, 2026
UBS Group AG6.87M3.54%13FAug 13, 2026
BlackRock, Inc.3.33M1.72%13FAug 7, 2026
Polar Asset Management Partners Inc.3.04M1.57%13FAug 14, 2026

Institutions13F, as of Jun 30, 2026

90 holders · 33.11M shares · 24 new positions · 43 increased · 13 reduced · 10 closed

HolderShares% outstandingChg q/qFiled
Vanguard Capital Management LLC8.92M4.60%+340.6KAug 13, 2026
UBS Group AG6.87M3.54%+2.89MAug 13, 2026
BlackRock, Inc.3.33M1.72%−1Aug 7, 2026
Polar Asset Management Partners Inc.3.04M1.57%+3.04MnewAug 14, 2026
Geode Capital Management, LLC2.20M1.13%+43.1KAug 12, 2026
Vanguard Fiduciary Trust Co1.39M0.71%+353.2KAug 13, 2026
Spinnaker Investment Group, LLC1.04M0.54%0Jul 10, 2026
State Street Corp982.7K0.51%+172.4KAug 7, 2026

Beneficial owners13D/G · 5% or more, as filed

Holder% of classSharesFormFiled
Alumni Capital LP,9.48%10.42M13GSep 24, 2024

InsidersForm 4

Latest trades

Nothing filed in the last 12 months.

CongressHouse and Senate disclosures

Not reported.