OMEX Odyssey Marine Exploration, Inc.

NASDAQ
$0.90

Odyssey Marine Exploration, Inc. (OMEX) Institutional Ownership

What the institutions did with OMEX 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.

Managers reporting
71
filed a 13F this quarter
Managers holding
56
-1 on the quarter
Buyers
27
14 opened new
Sellers
26
15 sold out entirely
Buyer share
50.9%
of managers who traded it
Breadth
+1.9
net buyers, as a share of those trading

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.

Sign in or subscribe

Largest holders

Manager Shares % of reported
Two Seas Capital LP 5.6M 22.9%
Old West Investment Management, LLC 4.5M 18.4%
CITADEL ADVISORS LLC 4.0M 16.5%
VANGUARD CAPITAL MANAGEMENT LLC 2.4M 9.8%
Jefferies Financial Group Inc. 1.5M 6.1%
MORGAN STANLEY 1.4M 5.7%
UBS Group AG 1.2M 4.9%
SUSQUEHANNA INTERNATIONAL GROUP, LLP 666.4K 2.7%
GEODE CAPITAL MANAGEMENT, LLC 602.8K 2.5%
BlackRock, Inc. 458.8K 1.9%
VANGUARD FIDUCIARY TRUST CO 299.6K 1.2%
STATE STREET CORP 229.8K 0.9%
XTX Topco Ltd 171.8K 0.7%
L. Roy Papp & Associates, LLP 152.5K 0.6%
GROUP ONE TRADING LLC 148.4K 0.6%
NORTHERN TRUST CORP 123.4K 0.5%
Rockefeller Capital Management L.P. 116.7K 0.5%
VOISARD ASSET MANAGEMENT GROUP, INC. 108.0K 0.4%
Caprock Group, LLC 105.1K 0.4%
BlackDiamond Wealth Management, LLC 100.0K 0.4%
TWO SIGMA INVESTMENTS, LP 79.5K 0.3%
JPMORGAN CHASE & CO 72.7K 0.3%
BBR PARTNERS, LLC 60.6K 0.2%
JANE STREET GROUP, LLC 55.1K 0.2%
SIMPLEX TRADING, LLC 31.1K 0.1%

Largest changes

Manager Action Previous Current Change
CITADEL ADVISORS LLC Increased 1.5M 4.0M +2.5M
MORGAN STANLEY Increased 1.1K 1.4M +1.4M
UBS Group AG Increased 363.7K 1.2M +837.7K
RENAISSANCE TECHNOLOGIES LLC Sold Out 541.7K 0 -541.7K
JANE STREET GROUP, LLC Reduced 358.3K 55.1K -303.1K
Old West Investment Management, LLC Reduced 4.8M 4.5M -270.5K
SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced 828.6K 666.4K -162.2K
Foundations Investment Advisors, LLC Reduced 183.8K 28.3K -155.5K
SLT Holdings LLC Reduced 183.8K 28.3K -155.5K
BlackDiamond Wealth Management, LLC New 0 100.0K +100.0K
BlackRock, Inc. Increased 391.9K 458.8K +66.9K
JPMORGAN CHASE & CO Increased 15.2K 72.7K +57.4K
XTX Topco Ltd Reduced 221.8K 171.8K -50.0K
Pilgrim Partners Asia Pte Ltd Sold Out 36.6K 0 -36.6K
VANGUARD FIDUCIARY TRUST CO Increased 266.6K 299.6K +33.0K
GOLDMAN SACHS GROUP INC Sold Out 30.5K 0 -30.5K
TWO SIGMA SECURITIES, LLC Sold Out 25.8K 0 -25.8K
Schonfeld Strategic Advisors LLC Sold Out 24.0K 0 -24.0K
GROUP ONE TRADING LLC Increased 126.8K 148.4K +21.6K
Caprock Group, LLC Increased 85.1K 105.1K +20.0K
Catalyst Funds Management Pty Ltd Sold Out 19.7K 0 -19.7K
Scientech Research LLC Sold Out 19.3K 0 -19.3K
Baader Bank Aktiengesellschaft Sold Out 16.6K 0 -16.6K
COMMONWEALTH EQUITY SERVICES, LLC Sold Out 15.5K 0 -15.5K
TD Waterhouse Canada Inc. New 0 15.0K +15.0K

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.