SEACOR Marine Holdings Inc.
DE ˙ DB ˙ US78413P1012
6,10 € ↓ -0,30 (-4,69%)
2026-06-04
DEL PRIS
SecurityDE:SQZ / SEACOR Marine Holdings Inc.
InstitutionBridgeway Capital Management Inc
Latest Disclosed Ownership64,070 shares
Latest Disclosed Value $ 458,741
Bridgeway Capital Management Inc reports 17.93% decrease in ownership of SQZ / SEACOR Marine Holdings Inc.

On May 15, 2026 - Bridgeway Capital Management Inc filed a 13F-HR form disclosing ownership of 64,070 shares of SEACOR Marine Holdings Inc. (DE:SQZ) valued at $413,252 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 78,070 shares of SEACOR Marine Holdings Inc.. This represents a change in shares of -17.93% during the quarter. The current value of the position is $390,827 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)
2026-05-15 2026-03-31 13F SEACOR MARINE HLDGS COM 78413P101 64,070 -14,000 -17.93 459 -2.35 0.0092
2026-02-17 2025-12-31 13F SEACOR MARINE HLDGS COM 78413P101 78,070 0 0.00 470 -7.31 0.0099
2025-11-14 2025-09-30 13F SEACOR MARINE HLDGS COM 78413P101 78,070 -16,260 -17.24 507 5.20 0.0108
2025-08-14 2025-06-30 13F SEACOR MARINE HLDGS COM 78413P101 94,330 -6,071 -6.05 481 -5.31 0.0114
2025-05-15 2025-03-31 13F SEACOR MARINE HLDGS COM 78413P101 100,401 -70,496 -41.25 508 -54.68 0.0128
2025-02-14 2024-12-31 13F SEACOR MARINE HLDGS COM 78413P101 170,897 64,698 60.92 1,121 9.47 0.0251
2024-11-14 2024-09-30 13F SEACOR MARINE HLDGS COM 78413P101 106,199 -5,578 -4.99 1,025 -32.05 0.0222
2024-08-14 2024-06-30 13F SEACOR MARINE HLDGS COM 78413P101 111,777 -34,165 -23.41 1,508 -25.91 0.0353
2024-05-15 2024-03-31 13F SEACOR MARINE HLDGS COM 78413P101 145,942 -81,266 -35.77 2,034 -28.88 0.0416
2024-02-14 2023-12-31 13F SEACOR MARINE HLDGS COM 78413P101 227,208 -30,636 -11.88 2,861 -20.07 0.0614
2023-11-14 2023-09-30 13F SEACOR MARINE HLDGS COM 78413P101 257,844 3,536 1.39 3,579 23.12 0.0868
2023-08-14 2023-06-30 13F SEACOR MARINE HLDGS COM 78413P101 254,308 2,596 1.03 2,907 51.75 0.0696
2023-05-15 2023-03-31 13F SEACOR MARINE HLDGS COM 78413P101 251,712 -3,993 -1.56 1,916 -18.23 0.0509
2023-02-14 2022-12-31 13F SEACOR MARINE HLDGS COM 78413P101 255,705 0 0.00 2,342 62.98 0.0606
2022-11-14 2022-09-30 13F SEACOR MARINE HLDGS COM 78413P101 255,705 37,000 16.92 1,437 14.05 0.0385
2022-08-15 2022-06-30 13F SEACOR MARINE HLDGS COM 78413P101 218,705 0 0.00 1,260 -28.61 0.0288
2022-05-16 2022-03-31 13F SEACOR MARINE HLDGS COM 78413P101 218,705 73,900 51.03 1,765 258.74 0.0341
2022-02-14 2021-12-31 13F SEACOR MARINE HLDGS COM 78413P101 144,805 18,000 14.20 492 -16.18 0.0091
2021-11-15 2021-09-30 13F SEACOR MARINE HLDGS COM 78413P101 126,805 18,929 17.55 587 23.32 0.0112
2021-08-16 2021-06-30 13F SEACOR MARINE HLDGS COM 78413P101 107,876 -27,929 -20.57 476 -34.25 0.0085
2021-05-17 2021-03-31 13F SEACOR MARINE HLDGS COM 78413P101 135,805 9,805 7.78 724 112.32 0.0135
2021-02-16 2020-12-31 13F SEACOR MARINE HLDGS COM 78413P101 126,000 0 0.00 341 33.20 0.0072
2020-11-16 2020-09-30 13F SEACOR MARINE HLDGS COM 78413P101 126,000 0 0.00 256 -20.25 0.0059
2020-08-31 2020-06-30 13F/A-1 SEACOR MARINE HLDGS COM 78413P101 126,000 92,360 274.55 321 118.37 0.0065
2020-08-14 2020-06-30 13F SEACOR MARINE HLDGS COM 78413P101 126,000 92,360 321 6,564.8078
2020-05-15 2020-03-31 13F SEACOR MARINE HLDGS COM 78413P101 33,640 0 0.00 147 -68.32 0.0034
2020-02-14 2019-12-31 13F SEACOR MARINE HLDGS COM 78413P101 33,640 -22,863 -40.46 464 -34.65 0.0062
2019-11-14 2019-09-30 13F SEACOR MARINE HLDGS COM 78413P101 56,503 0 0.00 710 -15.98 0.0098
2019-08-14 2019-06-30 13F SEACOR MARINE HLDGS COM 78413P101 56,503 0 0.00 845 12.37 0.0108
2019-05-15 2019-03-31 13F SEACOR MARINE HLDGS COM 78413P101 56,503 -18,468 -24.63 752 -14.74 0.0094
2019-02-14 2018-12-31 13F SEACOR MARINE HLDGS COM 78413P101 74,971 -1,540 -2.01 882 -49.05 0.0117
2018-11-13 2018-09-30 13F SEACOR MARINE HLDGS COM 78413P101 76,511 0 0.00 1,731 -2.04 0.0169
2018-08-14 2018-06-30 13F SEACOR MARINE HLDGS COM 78413P101 76,511 0 0.00 1,767 21.44 0.0179
2018-05-15 2018-03-31 13F SEACOR MARINE HLDGS COM 78413P101 76,511 0 0.00 1,455 62.57 0.0156
2018-02-14 2017-12-31 13F SEACOR MARINE HLDGS COM 78413P101 76,511 0 0.00 895 -25.23 0.0096
2017-11-14 2017-09-30 13F SEACOR MARINE HLDGS COM 78413P101 76,511 0 0.00 1,197 -23.17 0.0137
2017-08-14 2017-06-30 13F SEACOR MARINE HLDGS COM 78413P101 76,511 76,511 1,558 0.0188
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.