Odyssey Marine Exploration Inc: which funds bought and sold

Institutions that bought and sold Odyssey Marine Exploration shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.

Between March 31, 2026 and June 30, 2026, 25 institutions that filed 13F reports for both quarters added to or opened positions in Odyssey Marine Exploration, and 27 cut or closed them. Together they added a net 444K shares, +2.2% on what they held at the start of the quarter. Active managers and hedge funds on our list were net sellers of 594K shares (−9.5%); index fund managers were net buyers of 101K shares (+2.5%). 13 opened a new position and 16 sold out entirely.

Bought, Q2 2026 25 institutions, 13 of them new holders Sold, Q2 2026 27 institutions, 16 of them sold out

Net change, all compared +444K shares (+2.2%)

Net change, active managers −594K shares (−9.5%), 0 bought, 4 sold

Buyers versus sellers

institutions compared, 70

25 bought 18 27 sold

Active managers and hedge funds 0 bought · 4 sold · −594K

Index fund managers 3 bought · 2 sold · +101K

Other institutions 22 bought · 21 sold · +937K

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Morgan Stanley	+1.4M +126379.4%	1.4M	$1.2M
UBS Group AG	+838K +230.3%	1.2M	$1M
Blackdiamond Wealth Management, LLC	+100K New position	100K	$87,650
Blackrock, Inc. Index funds	+67K +17.1%	459K	$390,154
Jpmorgan Chase & Co	+57K +376.6%	73K	$63,933
Vanguard Fiduciary Trust Co Index funds	+33K +12.4%	300K	$254,622
Group One Trading LLC	+22K +17.0%	148K	$126,232
Caprock Group, LLC	+20K +23.5%	105K	$89,411
TD Waterhouse Canada Inc.	+15K New position	15K	$12,300
LPL Financial LLC	+14K New position	14K	$12,283
Private Advisor Group, LLC	+14K New position	14K	$11,601
Bay Colony Advisory Group, Inc D/B/A Bay Colony Advisors	+13K New position	13K	$10,630
Kestra Advisory Services, LLC	+11K New position	11K	$9,002
Simplex Trading, LLC	+10K +50.0%	31K	$26,450
Focus Partners Wealth	+10K New position	10K	$8,504
Tower Research Capital LLC (TRC)	+6,260 +162.5%	10K	$8,600
Northern Trust Corp Index funds	+6,001 +5.1%	123K	$104,975
Continuum Advisory, LLC	+5,557 New position	5,557	$4,726
Arax Advisory Partners	+4,000 New position	4,000	$3,402
Fiduciary Financial Advisors	+2,587 New position	2,587	$2,200

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
None of the active managers on our list.

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Renaissance Technologies LLC Hedge fund	−542K Sold out	0	—
Kingsbury Capital Investment Advisors LLC	−314K Sold out	0	—
Jane Street Group, LLC	−303K −84.6%	55K	$46,884
Old West Investment Management, LLC	−271K −5.7%	4.5M	$3.8M
Susquehanna International Group, LLP	−162K −19.6%	666K	$566,704
Foundations Investment Advisors, LLC	−156K −84.6%	28K	$24,024
Slt Holdings LLC	−156K −84.6%	28K	$24,024
Xtx Topco Ltd	−50K −22.5%	172K	$146,136
Pilgrim Partners Asia Pte Ltd	−37K Sold out	0	—
Goldman Sachs Group Inc	−30K Sold out	0	—
Two Sigma Securities, LLC	−26K Sold out	0	—
Schonfeld Strategic Advisors LLC Hedge fund	−24K Sold out	0	—
Catalyst Funds Management Pty Ltd	−20K Sold out	0	—
Scientech Research LLC	−19K Sold out	0	—
Baader Bank Aktiengesellschaft	−17K Sold out	0	—
Commonwealth Equity Services, LLC	−16K Sold out	0	—
Graham Capital Management, L.P. Hedge fund	−15K Sold out	0	—
Two Sigma Investments, LP Hedge fund	−13K −14.2%	79K	$67,594
Rockefeller Capital Management L.P.	−7,000 −5.7%	117K	$99,283
Mai Capital Management	−3,075 Sold out	0	—

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Renaissance Technologies LLC Hedge fund	−542K Sold out	0	—
Schonfeld Strategic Advisors LLC Hedge fund	−24K Sold out	0	—
Graham Capital Management, L.P. Hedge fund	−15K Sold out	0	—
Two Sigma Investments, LP Hedge fund	−13K −14.2%	79K	$67,594

New positions

largest by value

Institution	Shares	Value June 30, 2026
Blackdiamond Wealth Management, LLC	100K	$87,650
TD Waterhouse Canada Inc.	15K	$12,300
LPL Financial LLC	14K	$12,283
Private Advisor Group, LLC	14K	$11,601
Bay Colony Advisory Group, Inc D/B/A Bay Colony Advisors	13K	$10,630
Kestra Advisory Services, LLC	11K	$9,002
Focus Partners Wealth	10K	$8,504
Continuum Advisory, LLC	5,557	$4,726
Arax Advisory Partners	4,000	$3,402
Fiduciary Financial Advisors	2,587	$2,200

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Renaissance Technologies LLCHedge fund	542K	$451,795
Kingsbury Capital Investment Advisors LLC	314K	$261,773
Pilgrim Partners Asia Pte Ltd	37K	$30,524
Goldman Sachs Group Inc	30K	$25,413
Two Sigma Securities, LLC	26K	$21,522
Schonfeld Strategic Advisors LLCHedge fund	24K	$20,016
Catalyst Funds Management Pty Ltd	20K	$16,430
Scientech Research LLC	19K	$16,111
Commonwealth Equity Services, LLC	16K	$12,940
Graham Capital Management, L.P.Hedge fund	15K	$12,286

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 55
Ten largest holders: 91.1%
Index fund managers: 20.1%
Active managers and hedge funds: 27.8%

Buying and selling by type of institution, March 31, 2026 to June 30, 2026
Type	Bought	Sold	New	Sold out	Net change in shares	Net %
Active managers and hedge funds	0	4	0	3	−594K	−9.5%
Index fund managers	3	2	0	0	+101K	+2.5%
Other institutions	22	21	13	13	+937K	+9.7%

Active managers and hedge funds: a list we maintain of about 400 well-known stock-picking firms and hedge funds, matched by SEC registration number (CIK) and checked against the filer names each quarter. Index fund managers: the large index houses, such as BlackRock, Vanguard, State Street, Geode and Northern Trust. Every other filer (banks, brokers, wealth managers, pension funds, insurers and firms not on the list) counts as another institution. A firm that files under several SEC registrations appears once for each.

What these filings can and cannot tell you

Form 13F lists the long positions in US-listed shares held by investment managers with more than $100 million in such holdings. Managers file it up to 45 days after each quarter ends, so this page shows what funds held at the end of each quarter, not what they are doing now: a position may have changed since. Short positions, most derivatives and smaller managers are not included, and a cut can mean a fund lost clients or rebalanced rather than a view on Odyssey Marine Exploration.

Only managers that filed a holdings report for both quarters are compared (70 here). 4 other holders are left out: first-time or late filers, firms that changed their SEC registration, and filings that withheld positions under confidential treatment, any of which would otherwise look like a new position or a sale. Figures are as reported by each manager in the SEC's quarterly 13F data sets; option positions are excluded.

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