OMEX Odyssey Marine Exploration, Inc.

NASDAQ
$0.74

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 compared
71
filed both this quarter and last
Managers holding
55
-3 on the quarter
Buyers
25
13 opened new
Sellers
27
16 sold out entirely
Buyer share
48.1%
of managers who traded it
Breadth
-3.9
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.

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Ownership map

Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.

Cut Unchanged Added Color saturates at ±50%.

Largest holders

Manager Shares % of reported
Two Seas Capital LP 5.6M 27.4%
Old West Investment Management, LLC 4.5M 22.0%
VANGUARD CAPITAL MANAGEMENT LLC 2.4M 11.7%
Jefferies Financial Group Inc. 1.5M 7.3%
MORGAN STANLEY 1.4M 6.8%
UBS Group AG 1.2M 5.9%
SUSQUEHANNA INTERNATIONAL GROUP, LLP 666.4K 3.3%
GEODE CAPITAL MANAGEMENT, LLC 602.8K 3.0%
BlackRock, Inc. 458.8K 2.2%
VANGUARD FIDUCIARY TRUST CO 299.6K 1.5%
STATE STREET CORP 229.8K 1.1%
XTX Topco Ltd 171.8K 0.8%
L. Roy Papp & Associates, LLP 152.5K 0.7%
GROUP ONE TRADING LLC 148.4K 0.7%
NORTHERN TRUST CORP 123.4K 0.6%
Rockefeller Capital Management L.P. 116.7K 0.6%
VOISARD ASSET MANAGEMENT GROUP, INC. 108.0K 0.5%
Caprock Group, LLC 105.1K 0.5%
BlackDiamond Wealth Management, LLC 100.0K 0.5%
TWO SIGMA INVESTMENTS, LP 79.5K 0.4%
JPMORGAN CHASE & CO 72.7K 0.4%
BBR PARTNERS, LLC 60.6K 0.3%
JANE STREET GROUP, LLC 55.1K 0.3%
SIMPLEX TRADING, LLC 31.1K 0.2%
Foundations Investment Advisors, LLC 28.3K 0.1%

Largest changes

Manager Action Previous Current Change
CITADEL ADVISORS LLC Sold Out 1.5M 0 -1.5M
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
Graham Capital Management, L.P. Sold Out 14.7K 0 -14.7K
LPL Financial LLC New 0 14.4K +14.4K
Private Advisor Group, LLC New 0 13.6K +13.6K
TWO SIGMA INVESTMENTS, LP Reduced 92.6K 79.5K -13.1K
Bay Colony Advisory Group, Inc d/b/a Bay Colony Advisors New 0 12.5K +12.5K
Kestra Advisory Services, LLC New 0 10.6K +10.6K
SIMPLEX TRADING, LLC Increased 20.7K 31.1K +10.4K
Focus Partners Wealth New 0 10.0K +10.0K
Rockefeller Capital Management L.P. Reduced 123.7K 116.7K -7.0K
Tower Research Capital LLC (TRC) Increased 3.9K 10.1K +6.3K
NORTHERN TRUST CORP Increased 117.4K 123.4K +6.0K
Continuum Advisory, LLC New 0 5.6K +5.6K
Arax Advisory Partners New 0 4.0K +4.0K
MAI Capital Management Sold Out 3.1K 0 -3.1K
Valeo Financial Advisors, LLC Sold Out 3.0K 0 -3.0K
GEODE CAPITAL MANAGEMENT, LLC Reduced 605.4K 602.8K -2.6K
ACTION POINT FINANCIAL PLANNING, LLC New 0 2.6K +2.6K
VANGUARD CAPITAL MANAGEMENT LLC Reduced 2.4M 2.4M -2.1K
BARCLAYS PLC New 0 1.0K +1.0K
OSAIC HOLDINGS, INC. Reduced 671 50 -621
ROYAL BANK OF CANADA New 0 500 +500
HARBOUR INVESTMENTS, INC. Increased 10 510 +500
Allworth Financial LP Sold Out 292 0 -292
SBI Securities Co., Ltd. Increased 367 567 +200
Darwin Wealth Management, LLC New 0 42 +42
True Wealth Design, LLC Sold Out 42 0 -42
US BANCORP \DE\ Sold Out 17 0 -17

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.