Institutional HoldersBeta

Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.

SEACOR Marine Holdings Inc.

CIK 0001690334SMHI· quarter ending 2026-06-30

Shares outstanding

27,132,826

as of 2026-07-24 · 10-Q cover page, filed 2026-07-29

Held by 13F filers

13,208,609

48.7% of shares outstanding

Holders

+4 vs 2026-03-31 · 14 new, 10 exited

Value

$101.1M

shares +12.3% vs prior quarter

Share classes (cover page of the 10-Q filed 2026-07-29, as of 2026-07-24)

Class	Listed	Shares outstanding	Held by 13F filers	% of class	Holders	CUSIP
Common stock	SMHI · NYSE	27,132,826	13,208,609	48.7%	95	78413P101

Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.

Securities (CUSIPs held in 13F this quarter)

tick to combine

Count	CUSIP	Class (as filers write it)	Holders	Shares held	Class shares	% of class	Value	Options	Mapped via
	78413P101	COM	95	13,208,609	27,132,826	48.7%	$101.1M	—	13DG	holders →

Totals combine the ticked CUSIPs and update as you tick: common-stock classes by default; preferreds, notes, warrants and depositary shares are listed but not counted. "holders →" shows a single CUSIP on its own. Bonds are held as a principal amount, not shares. Options positions are never counted as holdings.

Top holders (95 of 95 · 78413P101)

change vs 2026-03-31

#	Filer	Shares	% of class	Value	Change
1	First Eagle Investment Management, LLC	2,067,978	7.62%	$15.8M	+997,489 (+93.2%)
2	BlackRock, Inc.	1,593,198	5.87%	$12.2M	+53,691 (+3.5%)
3	Oppenheimer & Close, LLC	1,383,792	5.10%	$10.6M	+2,425 (+0.2%)
4	DIMENSIONAL FUND ADVISORS LP	1,186,855	4.37%	$9.1M	-65,865 (-5.3%)
5	VANGUARD CAPITAL MANAGEMENT LLC	943,391	3.48%	$7.2M	-74,396 (-7.3%)
6	ROBOTTI ROBERT	713,219	2.63%	$5.5M	-54,727 (-7.1%)
7	Flat Footed LLC	683,777	2.52%	$5.2M	NEW
8	GEODE CAPITAL MANAGEMENT, LLC	530,553	1.96%	$4.1M	+26,942 (+5.3%)
9	STATE STREET CORP	496,809	1.83%	$3.8M	-1,720 (-0.3%)
10	Cerity Partners LLC	431,723	1.59%	$3.3M	-3,209 (-0.7%)
11	FIRST MANHATTAN CO. LLC.	309,085	1.14%	$2.4M	-11,500 (-3.6%)
12	MORGAN STANLEY	248,053	0.91%	$1.9M	-4,258 (-1.7%)
13	OPPENHEIMER & CO INC	227,400	0.84%	$1.7M	+4,400 (+2.0%)
14	Glenorchy Capital Ltd	219,261	0.81%	$1.7M	+8,334 (+4.0%)
15	SEMPER AUGUSTUS INVESTMENTS GROUP LLC	208,175	0.77%	$1.6M	—
16	NORTHERN TRUST CORP	171,051	0.63%	$1.3M	-24,040 (-12.3%)
17	VANGUARD PORTFOLIO MANAGEMENT LLC	148,776	0.55%	$1.1M	+22,272 (+17.6%)
18	VANGUARD FIDUCIARY TRUST CO	136,115	0.50%	$1.0M	+1,767 (+1.3%)
19	HighTower Advisors, LLC	128,988	0.48%	$987K	+213 (+0.2%)
20	RENAISSANCE TECHNOLOGIES LLC	114,200	0.42%	$874K	-6,200 (-5.1%)
21	UBS Group AG	108,868	0.40%	$833K	+43,811 (+67.3%)
22	JPMORGAN CHASE & CO	93,360	0.34%	$749K	-53,915 (-36.6%)
23	Nuveen, LLC	74,813	0.28%	$572K	+4,453 (+6.3%)
24	CITADEL ADVISORS LLC	71,979	0.27%	$551K	-47,489 (-39.8%)
25	D. E. Shaw & Co., Inc.	65,633	0.24%	$502K	+5,983 (+10.0%)
26	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	63,560	0.23%	$486K	+5,350 (+9.2%)
27	BRIDGEWAY CAPITAL MANAGEMENT, LLC	56,570	0.21%	$433K	-7,500 (-11.7%)
28	AQR CAPITAL MANAGEMENT LLC	55,555	0.20%	$425K	NEW
29	Bank of New York Mellon Corp	52,531	0.19%	$402K	-1,022 (-1.9%)
30	BANK OF AMERICA CORP /DE/	49,919	0.18%	$382K	+3,830 (+8.3%)
31	AMERICAN CENTURY COMPANIES INC	47,503	0.18%	$363K	-222 (-0.5%)
32	Perennial Advisors, LLC	46,038	0.17%	$352K	—
33	GOLDMAN SACHS GROUP INC	29,943	0.11%	$229K	-59,833 (-66.6%)
34	Invesco Ltd.	29,445	0.11%	$225K	+139 (+0.5%)
35	XTX Topco Ltd	28,483	0.10%	$218K	+15,948 (+127.2%)
36	RHUMBLINE ADVISERS	27,806	0.10%	$213K	-866 (-3.0%)
37	BARCLAYS PLC	27,759	0.10%	$212K	-662 (-2.3%)
38	STEPHENS INC /AR/	23,536	0.09%	$180K	—
39	WELLINGTON MANAGEMENT GROUP LLP	22,297	0.08%	$171K	+3,223 (+16.9%)
40	DEUTSCHE BANK AG\	21,731	0.08%	$166K	+8,219 (+60.8%)
41	Empowered Funds, LLC	21,170	0.08%	$162K	-7,500 (-26.2%)
42	Hilltop Holdings Inc.	20,600	0.08%	$158K	—
43	ALLIANCEBERNSTEIN L.P.	18,890	0.07%	$135K	+2,800 (+17.4%)
44	NEUBERGER BERMAN GROUP LLC	18,869	0.07%	$144K	+2,532 (+15.5%)
45	WELLS FARGO & COMPANY/MN	18,653	0.07%	$143K	+10,400 (+126.0%)
46	Wilmington Savings Fund Society, FSB	18,567	0.07%	$142K	-20,000 (-51.9%)
47	PRICE T ROWE ASSOCIATES INC /MD/	18,272	0.07%	$140K	+5,508 (+43.2%)
48	CITIGROUP INC	16,132	0.06%	$123K	+15,118 (+1490.9%)
49	MetLife Investment Management, LLC	13,062	0.05%	$100K	+590 (+4.7%)
50	LEVIN CAPITAL STRATEGIES, L.P.	12,000	0.04%	$92K	NEW
51	SUSQUEHANNA INTERNATIONAL GROUP, LLP	11,188	0.04%	$86K	-4,000 (-26.3%)
52	Russell Investments Group, Ltd.	10,490	0.04%	$80K	+8,674 (+477.6%)
53	FMR LLC	10,384	0.04%	$79K	-381 (-3.5%)
54	Pathstone Holdings, LLC	10,275	0.04%	$79K	-550 (-5.1%)
55	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	10,259	0.04%	$78K	+73 (+0.7%)
56	Vanguard Global Advisers, LLC	9,477	0.03%	$72K	—
57	Police & Firemen's Retirement System of New Jersey	4,890	0.02%	$37K	—
58	NEW YORK STATE COMMON RETIREMENT FUND	4,203	0.02%	$32K	—
59	BNP PARIBAS FINANCIAL MARKETS	3,901	0.01%	$30K	-761 (-16.3%)
60	Tower Research Capital LLC (TRC)	2,676	0.01%	$20K	-3,890 (-59.2%)
61	Ameritas Investment Partners, Inc.	1,989	0.01%	$15K	—
62	ROYAL BANK OF CANADA	1,964	0.01%	$15K	-3,754 (-65.7%)
63	Legal & General Group Plc	1,890	0.01%	$14K	—
64	ROYAL LONDON ASSET MANAGEMENT LTD	1,550	0.01%	$12K	—
65	Arax Advisory Partners	1,411	0.01%	$11K	NEW
66	PNC Financial Services Group, Inc.	1,188	0.00%	$9K	-616 (-34.1%)
67	MV CAPITAL MANAGEMENT, INC.	1,131	0.00%	$9K	—
68	NISA INVESTMENT ADVISORS, LLC	1,006	0.00%	$8K	—
69	Sterling Capital Management LLC	409	0.00%	$3K	-314 (-43.4%)
70	CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	306	0.00%	$2K	-875 (-74.1%)
71	OSAIC HOLDINGS, INC.	292	0.00%	$2K	NEW
72	GAMMA Investing LLC	281	0.00%	$2K	+38 (+15.6%)
73	Private Wealth Management Group, LLC	208	0.00%	$2K	—
74	Parkside Financial Bank & Trust	175	0.00%	$1K	—
75	SBI Securities Co., Ltd.	152	0.00%	$1K	—
76	NewEdge Advisors, LLC	127	0.00%	$972	—
77	Steward Partners Investment Advisory, LLC	125	0.00%	$956	—
78	Essential Partners LLC	116	0.00%	$887	NEW
79	Cornerstone Financial Management LLC	110	0.00%	$842	—
80	Allworth Financial LP	108	0.00%	$827	+98 (+980.0%)
81	HARBOUR INVESTMENTS, INC.	100	0.00%	$765	—
82	Rialto Wealth Management, LLC	69	0.00%	$528	NEW
83	True Wealth Design, LLC	40	0.00%	$306	+20 (+100.0%)
84	EverSource Wealth Advisors, LLC	36	0.00%	$276	-3 (-7.7%)
85	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	36	0.00%	$275	—
86	Farther Finance Advisors, LLC	34	0.00%	$260	+31 (+1033.3%)
87	ROTHSCHILD INVESTMENT LLC	18	0.00%	$138	NEW
88	Fortitude Family Office, LLC	16	0.00%	$122	NEW
89	Transamerica Financial Advisors, LLC	9	0.00%	$68	NEW
90	Caitong International Asset Management Co., Ltd	7	0.00%	$54	+4 (+133.3%)
91	Clearstead Advisors, LLC	6	0.00%	$46	NEW
92	Wealth Enhancement Trust Services, Inc.	6	0.00%	$46	NEW
93	SJS Investment Consulting Inc.	4	0.00%	$31	NEW
94	IFP Advisors, Inc	2	0.00%	$15	NEW
95	Optiver Holding B.V.	2	0.00%	$15	-208 (-99.0%)

Exited since 2026-03-31 (10 filers; largest 10 shown)

GSA CAPITAL PARTNERS LLP	−38,722
INTECH INVESTMENT MANAGEMENT LLC	−12,193
MIRABELLA FINANCIAL SERVICES LLP	−11,255
JANE STREET GROUP, LLC	−10,933
Almanack Investment Partners, LLC.	−10,905
Callan Family Office, LLC	−10,451
Ascentis Independent Advisors	−600
CWM, LLC	−557
Root Financial Partners, LLC	−37
MAI Capital Management	−3

Large holders from 13D/13G (latest per reporting person, last 2 years)

Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.

Reporting person	Form	Filed	Event	Shares	% of class
Carl K. Oppenheimer	SCHEDULE 13G	2026-08-11	2026-06-30	1,383,792	5.1%
Oppenheimer-Close Investment Partnership, LP	SCHEDULE 13G	2026-08-11	2026-06-30	147,961	0.55%
Oppenheimer + Close, LLC	SCHEDULE 13G	2026-08-11	2026-06-30	705,821	2.6%
Oppvest, LLC	SCHEDULE 13G	2026-08-11	2026-06-30	677,971	2.5%
P. Oppenheimer Investment Parternship, LP	SCHEDULE 13G	2026-08-11	2026-06-30	530,010	1.95%
Chernett Jorey	SCHEDULE 13D	2026-06-22	2026-06-22	1,946,963	7.19%
Dimensional Fund Advisors LP	SCHEDULE 13G/A	2026-01-21	2025-12-31	1,284,004	4.8%
The Vanguard Group	SCHEDULE 13G/A	2025-10-30	2025-09-30	1,235,033	4.57%
JMG Assets, LLC	SCHEDULE 13D	2025-01-17	2025-01-10	109,109	0.4%
JMG GST LLC	SCHEDULE 13D	2025-01-17	2025-01-10	95,158	0.3%
John M. Gellert	SCHEDULE 13D	2025-01-17	2025-01-10	1,424,425	5.1%
Michael E. Gellert 2011 Family Trust	SCHEDULE 13D	2025-01-17	2025-01-10	26,557	0.1%

Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.