SEACOR MARINE HOLDINGS INC (SMHI) Stock Institutional Trading Activity


SEACOR MARINE HOLDINGS INC (SMHI) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Renaissance Technologies LLC, Semper Augustus Investments Group, First Eagle U.S. Value, Donald Smith & Co., and Third Avenue Management. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

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Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q2 2022Renaissance Technologies LLCBuy45,40074,500$429
Q2 2022Semper Augustus Investments GroupSell-3,316251,428$1,448
Q1 2022Renaissance Technologies LLCBuy2,10029,100$235
Q4 2021Renaissance Technologies LLCBuy1,80027,000$92
Q4 2021Semper Augustus Investments GroupSell-5,628254,744$866
Q3 2021Renaissance Technologies LLCSell-10025,200$117
Q3 2021Semper Augustus Investments GroupSell-363260,372$1,206
Q2 2021Renaissance Technologies LLCSell-6,10025,300$112
Q2 2021Semper Augustus Investments GroupBuy4,043260,735$1,150
Q1 2021Renaissance Technologies LLCBuy15,50031,400$167
Q1 2021Semper Augustus Investments GroupSell-334256,692$1,368
Q4 2020Renaissance Technologies LLCSell-11,64615,900$43
Q4 2020Semper Augustus Investments GroupSell-646257,026$697
Q3 2020Semper Augustus Investments GroupSell-1,343257,672$523
Q2 2020Renaissance Technologies LLCSell-10,11527,546$70
Q2 2020Semper Augustus Investments GroupSell-3,358259,015$660
Q1 2020Renaissance Technologies LLCSell-11,71137,661$165
Q1 2020Semper Augustus Investments GroupSell-68,940262,373$1,149
Q1 2020Donald Smith & Co.Sell-10,00095,528$418
Q4 2019Renaissance Technologies LLCBuy5,50049,372$681
Q4 2019Donald Smith & Co.Sell-7,541105,528$1,455
Q3 2019Renaissance Technologies LLCBuy7,10043,872$551
Q3 2019Semper Augustus Investments GroupBuy9,815331,313$4,165
Q2 2019Renaissance Technologies LLCBuy27,57236,772$550
Q2 2019Semper Augustus Investments GroupBuy350321,498$4,810
Q2 2019Donald Smith & Co.Sell-13,070113,069$1,692
Q1 2019Third Avenue ManagementBuy63358,074$4,777
Q4 2018Semper Augustus Investments GroupSell-7,710321,148$3,777
Q4 2018Third Avenue ManagementBuy102358,011$4,211
Q3 2018Renaissance Technologies LLCSell-73,4759,200$208

Frequently asked questions about SMHI activity

  • Which institutional owners are buying SMHI?

    Institutional owners buying SMHI include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in SMHI activity?

    "Buy" means an investor increased their reported position in SMHI compared to the prior reporting period. This reflects growing exposure to SEACOR MARINE HOLDINGS INC (SMHI) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in SMHI increasing?

    Institutional interest in SMHI can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.