SEACOR MARINE HOLDINGS INC (SMHI) Top Institutional Shareholders
SEACOR MARINE HOLDINGS INC (SMHI) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026. The institutional investors covered on this page collectively reported approximately $82.74M in SMHI holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of SMHI tracked by InsiderSet, reporting ownership valued at approximately $11.02M in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $10.73M, representing an estimated loss of -2.65% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 76% of the total disclosed SMHI value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Oppenheimer & Close, Llc, Dimensional Fund Advisors Lp, and several other long-term asset managers with concentrated positions in SEACOR MARINE HOLDINGS INC (SMHI).
This page ranks the largest institutional SMHI shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
89
Total Reported Value
$82.74M
Largest Holder
Blackrock, Inc.
Largest Position
$11.02M
Insider Transactions (90d)
0
Latest Filing Quarter
Q1 2026
New Institutional Positions
104
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.00% | 1,539,507 | $11,022,869 | $10,730,364 | -$292,505 | -2.65% | |
| Oppenheimer & Close, Llc | 6.24% | 1,381,367 | $9,890,588 | $9,628,128 | -$262,460 | -2.65% | |
| Dimensional Fund Advisors Lp | 0.00% | 1,252,720 | $8,970,777 | $8,731,458 | -$239,319 | -2.67% | |
| First Eagle U.S. Value | Jean-Marie Eveillard | 0.01% | 1,070,489 | $7,664,701 | $7,461,308 | -$203,393 | -2.65% |
| Vanguard Capital Management Llc | 0.00% | 1,017,787 | $7,287,355 | $7,093,975 | -$193,380 | -2.65% | |
| Robotti Robert | 0.86% | 767,946 | $5,498,493 | $5,352,584 | -$145,909 | -2.65% | |
| Geode Capital Management, Llc | 0.00% | 503,611 | $3,606,509 | $3,510,169 | -$96,340 | -2.67% | |
| State Street Corp | 0.00% | 498,529 | $3,569,468 | $3,474,747 | -$94,721 | -2.65% | |
| Cerity Partners Llc | 0.00% | 434,932 | $3,114,112 | $3,031,476 | -$82,636 | -2.65% | |
| First Manhattan Co. Llc. | 0.01% | 320,585 | $2,295,389 | $2,234,477 | -$60,912 | -2.65% | |
| Morgan Stanley | 0.00% | 252,311 | $1,806,547 | $1,758,608 | -$47,939 | -2.65% | |
| Oppenheimer & Co Inc | 0.02% | 223,000 | $1,596,680 | $1,554,310 | -$42,370 | -2.65% | |
| Glenorchy Capital Ltd | 0.82% | 210,927 | $1,510,243 | $1,470,161 | -$40,082 | -2.65% | |
| Semper Augustus Investments Group | Christopher Bloomstran | 0.18% | 208,175 | $1,490,533 | $1,450,980 | -$39,553 | -2.65% |
| Northern Trust Corp | 0.00% | 195,091 | $1,396,851 | $1,359,784 | -$37,067 | -2.65% | |
| Vanguard Fiduciary Trust Co | 0.00% | 134,348 | $961,932 | $936,406 | -$25,526 | -2.65% | |
| Hightower Advisors, Llc | 0.00% | 128,775 | $922,029 | $897,562 | -$24,467 | -2.65% | |
| Vanguard Portfolio Management Llc | 0.00% | 126,504 | $905,769 | $881,733 | -$24,036 | -2.65% | |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 120,400 | $862,064 | $839,188 | -$22,876 | -2.65% |
| Citadel Advisors Llc | 0.00% | 119,468 | $855,391 | $832,692 | -$22,699 | -2.65% | |
| Goldman Sachs Group Inc | 0.00% | 89,776 | $642,796 | $625,739 | -$17,057 | -2.65% | |
| Nuveen, Llc | 0.00% | 70,360 | $503,778 | $490,409 | -$13,369 | -2.65% | |
| Ubs Group Ag | 0.00% | 65,057 | $465,808 | $453,447 | -$12,361 | -2.65% | |
| Bridgeway Capital Management, Llc | 0.01% | 64,070 | $458,741 | $446,568 | -$12,173 | -2.65% | |
| D. E. Shaw & Co., Inc. | 0.00% | 59,650 | $427,094 | $415,761 | -$11,334 | -2.65% | |
| Charles Schwab Investment Management Inc | 0.00% | 58,210 | $416,784 | $405,724 | -$11,060 | -2.65% | |
| Bank Of New York Mellon Corp | 0.00% | 53,553 | $383,436 | $373,264 | -$10,172 | -2.65% | |
| American Century Companies Inc | 0.00% | 47,725 | $341,711 | $332,643 | -$9,068 | -2.65% | |
| Bank Of America Corp | 0.00% | 46,089 | $329,997 | $321,240 | -$8,757 | -2.65% | |
| Perennial Advisors, Llc | 0.06% | 46,038 | $329,633 | $320,885 | -$8,748 | -2.65% | |
| Wilmington Savings Fund Society, Fsb | 0.01% | 38,567 | $276,140 | $268,812 | -$7,328 | -2.65% | |
| Invesco Ltd. | 0.00% | 29,306 | $209,831 | $204,263 | -$5,568 | -2.65% | |
| Rhumbline Advisers | 0.00% | 28,672 | $205,283 | $199,844 | -$5,439 | -2.65% | |
| Empowered Funds, Llc | 0.00% | 28,670 | $205,277 | $199,830 | -$5,447 | -2.65% | |
| Barclays Plc | 0.00% | 28,421 | $203,494 | $198,094 | -$5,400 | -2.65% | |
| Stephens Inc | 0.00% | 23,536 | $168,518 | $164,046 | -$4,472 | -2.65% | |
| Hilltop Holdings Inc. | 0.01% | 20,600 | $147,496 | $143,582 | -$3,914 | -2.65% | |
| Wellington Management Group Llp | 0.00% | 19,074 | $136,570 | $132,946 | -$3,624 | -2.65% | |
| Neuberger Berman Group Llc | 0.00% | 16,337 | $116,973 | $113,869 | -$3,104 | -2.65% | |
| Susquehanna International Group, Llp | 0.00% | 15,188 | $108,746 | $105,860 | -$2,886 | -2.65% | |
| Alliancebernstein L.P. | 0.00% | 16,090 | $96,862 | $112,147 | +$15,285 | +15.78% | |
| Deutsche Bank Ag\ | 0.00% | 13,512 | $96,746 | $94,179 | -$2,567 | -2.65% | |
| Xtx Topco Ltd | 0.00% | 12,535 | $89,751 | $87,369 | -$2,382 | -2.65% | |
| Metlife Investment Management, Llc | 0.00% | 12,472 | $89,300 | $86,930 | -$2,370 | -2.65% | |
| Intech Investment Management Llc | 0.00% | 12,193 | $87,302 | $84,985 | -$2,317 | -2.65% | |
| Mirabella Financial Services Llp | 0.01% | 11,255 | $80,586 | $78,447 | -$2,139 | -2.65% | |
| Jane Street Group, Llc | 0.00% | 10,933 | $78,280 | $76,203 | -$2,077 | -2.65% | |
| Almanack Investment Partners, Llc. | 0.01% | 10,905 | $78,080 | $76,008 | -$2,072 | -2.65% | |
| Pathstone Holdings, Llc | 0.00% | 10,825 | $77,507 | $75,450 | -$2,057 | -2.65% | |
| Fmr Llc | 0.00% | 10,765 | $77,078 | $75,032 | -$2,046 | -2.65% |
Frequently asked questions about SMHI
Who owns the most SMHI stock?
The largest holders of SMHI are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for SEACOR MARINE HOLDINGS INC (SMHI).
Is SMHI widely held by superinvestors?
Many widely followed stocks like SMHI appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly SMHI is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.