SEACOR Marine Holdings Inc.
DE ˙ DB ˙ US78413P1012
6,35 € ↑0,25 (4,10%)
2026-06-05
DEL PRIS
SecurityDE:SQZ / SEACOR Marine Holdings Inc.
InstitutionHighTower Advisors, LLC
Latest Disclosed Ownership128,775 shares
Latest Disclosed Value $ 922,029
HighTower Advisors, LLC reports 0.64% decrease in ownership of SQZ / SEACOR Marine Holdings Inc.

On May 5, 2026 - HighTower Advisors, LLC filed a 13F-HR form disclosing ownership of 128,775 shares of SEACOR Marine Holdings Inc. (DE:SQZ) valued at $830,599 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 129,598 shares of SEACOR Marine Holdings Inc.. This represents a change in shares of -0.64% during the quarter. The current value of the position is $817,721 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-05 2026-03-31 13F SEACOR MARINE HLDGS COM 78413P101 128,775 -823 -0.64 922 18.21 0.0010
2026-02-06 2025-12-31 13F SEACOR MARINE HLDGS COM 78413P101 129,598 0 0.00 780 -7.25 0.0009
2025-11-07 2025-09-30 13F SEACOR MARINE HLDGS COM 78413P101 129,598 0 0.00 841 27.42 0.0010
2025-08-11 2025-06-30 13F SEACOR MARINE HLDGS COM 78413P101 129,598 0 0.00 661 0.76 0.0008
2025-05-13 2025-03-31 13F SEACOR MARINE HLDGS COM 78413P101 129,598 -1 -0.00 656 -22.94 0.0009
2025-02-07 2024-12-31 13F SEACOR MARINE HLDGS COM 78413P101 129,599 668 0.52 850 -31.67 0.0012
2024-11-14 2024-09-30 13F SEACOR MARINE HLDGS COM 78413P101 128,931 12,974 11.19 1,244 -20.46 0.0018
2024-08-13 2024-06-30 13F SEACOR MARINE HLDGS COM 78413P101 115,957 0 0.00 1,564 -3.22 0.0024
2024-05-06 2024-03-31 13F SEACOR MARINE HLDGS COM 78413P101 115,957 -3,990 -3.33 1,616 7.02 0.0026
2024-02-12 2023-12-31 13F SEACOR MARINE HLDGS COM 78413P101 119,947 1 0.00 1,510 -9.31 0.0025
2023-11-08 2023-09-30 13F SEACOR MARINE HLDGS COM 78413P101 119,946 -7,700 -6.03 1,665 14.12 0.0031
2023-08-14 2023-06-30 13F SEACOR MARINE HLDGS COM 78413P101 127,646 20,124 18.72 1,459 78.36 0.0029
2023-05-12 2023-03-31 13F SEACOR MARINE HLDGS COM 78413P101 107,522 21,666 25.24 818 4.07 0.0018
2023-02-09 2022-12-31 13F SEACOR MARINE HLDGS COM 78413P101 85,856 0 0.00 786 62.73 0.0018
2022-11-09 2022-09-30 13F SEACOR MARINE HLDGS COM 78413P101 85,856 0 0.00 483 -2.42 0.0013
2022-08-10 2022-06-30 13F SEACOR MARINE HLDGS COM 78413P101 85,856 0 0.00 495 -28.57 0.0013
2022-05-12 2022-03-31 13F SEACOR MARINE HLDGS COM 78413P101 85,856 0 0.00 693 137.33 0.0015
2022-02-10 2021-12-31 13F SEACOR MARINE HLDGS COM 78413P101 85,856 -201 -0.23 292 -26.82 0.0006
2021-11-12 2021-09-30 13F SEACOR MARINE HLDGS COM 78413P101 86,057 38,331 80.31 399 89.10 0.0011
2021-08-06 2021-06-30 13F SEACOR MARINE HLDGS COM 78413P101 47,726 0 0.00 211 -16.93 0.0006
2021-05-10 2021-03-31 13F SEACOR MARINE HLDGS COM 78413P101 47,726 0 0.00 254 95.38 0.0008
2021-02-10 2020-12-31 13F SEACOR MARINE HLDGS COM 78413P101 47,726 0 0.00 130 35.42 0.0005
2020-11-13 2020-09-30 13F SEACOR MARINE HLDGS COM 78413P101 47,726 11,530 31.85 96 3.23 0.0005
2020-08-10 2020-06-30 13F SEACOR MARINE HLDGS COM 78413P101 36,196 0 0.00 93 -41.51 0.0005
2020-05-21 2020-03-31 13F SEACOR MARINE HLDGS COM 78413P101 36,196 -601 -1.63 159 -68.64 0.0010
2020-02-14 2019-12-31 13F SEACOR MARINE HLDGS COM 78413P101 36,797 0 0.00 507 9.50 0.0030
2019-11-12 2019-09-30 13F SEACOR MARINE HLDGS COM 78413P101 36,797 5,812 18.76 463 -0.43 0.0025
2019-08-13 2019-06-30 13F SEACOR MARINE HLDGS COM 78413P101 30,985 -95 -0.31 465 12.32 0.0028
2019-05-15 2019-03-31 13F SEACOR MARINE HLDGS COM 78413P101 31,080 0 0.00 414 13.11 0.0028
2019-02-14 2018-12-31 13F SEACOR MARINE HLDGS COM 78413P101 31,080 0 0.00 366 -48.01 0.0028
2018-11-09 2018-09-30 13F SEACOR MARINE HLDGS COM 78413P101 31,080 -904 -2.83 704 -4.61 0.0051
2018-08-14 2018-06-30 13F SEACOR MARINE HLDGS COM 78413P101 31,984 3,712 13.13 738 37.17 0.0058
2018-05-15 2018-03-31 13F SEACOR MARINE HLDGS COM 78413P101 28,272 350 1.25 538 64.02 0.0045
2018-02-14 2017-12-31 13F SEACOR MARINE HLDGS COM 78413P101 27,922 0 0.00 328 -24.77 0.0027
2017-11-14 2017-09-30 13F SEACOR MARINE HLDGS COM 78413P101 27,922 2,670 10.57 436 -15.18 0.0037
2017-09-22 2017-06-30 13F/A-1 SEACOR MARINE HLDGS COM 78413P101 25,252 25,252 514 0.0046
2017-08-14 2017-06-30 13F SEACOR MARINE HLDGS COM 78413P101 25,252 514
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.