SEACOR Marine Holdings Inc.
DE ˙ DB ˙ US78413P1012
6,10 € ↓ -0,30 (-4,69%)
2026-06-04
CENA AKCJI
SecurityDE:SQZ / SEACOR Marine Holdings Inc.
InstitutionRobotti Robert
Latest Disclosed Ownership767,946 shares
Latest Disclosed Value $ 5,498,493
Robotti Robert reports 8.90% decrease in ownership of SQZ / SEACOR Marine Holdings Inc.

On May 13, 2026 - Robotti Robert filed a 13F-HR form disclosing ownership of 767,946 shares of SEACOR Marine Holdings Inc. (DE:SQZ) valued at $4,953,252 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on February 18, 2026 disclosing 842,946 shares of SEACOR Marine Holdings Inc.. This represents a change in shares of -8.90% during the quarter. The current value of the position is $4,684,471 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)
2026-05-13 2026-03-31 13F SEACOR MARINE HOLDINGS COM 78413P101 767,946 -75,000 -8.90 5,498 8.36 0.8575
2026-02-18 2025-12-31 13F/A-1 SEACOR MARINE HOLDINGS COM 78413P101 842,946 1,030 0.12 5,075 -7.14 0.9114
2026-02-12 2025-12-31 13F SEACOR MARINE HOLDINGS COM 78413P101 842,946 1,030 5,075
2025-11-12 2025-09-30 13F SEACOR MARINE HOLDINGS COM 78413P101 841,916 -2,360 -0.28 5,464 26.92 0.9479
2025-08-13 2025-06-30 13F SEACOR MARINE HOLDINGS COM 78413P101 844,276 -1,411 -0.17 4,306 0.61 0.7236
2025-05-13 2025-03-31 13F SEACOR MARINE HOLDINGS COM 78413P101 845,687 303,537 55.99 4,279 20.33 0.8574
2025-02-12 2024-12-31 13F SEACOR MARINE HOLDINGS COM 78413P101 542,150 -126,970 -18.98 3,557 -44.93 0.6242
2024-11-14 2024-09-30 13F SEACOR MARINE HOLDINGS COM 78413P101 669,120 1,002 0.15 6,457 -28.35 0.9828
2024-08-14 2024-06-30 13F SEACOR MARINE HOLDINGS COM 78413P101 668,118 661 0.10 9,013 -3.14 1.4119
2024-05-15 2024-03-31 13F SEACOR MARINE HOLDINGS COM 78413P101 667,457 -70 -0.01 9,304 10.71 1.2626
2024-02-14 2023-12-31 13F SEACOR MARINE HOLDINGS COM 78413P101 667,527 -5,937 -0.88 8,404 -10.09 1.2100
2023-11-14 2023-09-30 13F SEACOR MARINE HOLDINGS COM 78413P101 673,464 -1,087 -0.16 9,348 21.23 1.3729
2023-08-14 2023-06-30 13F SEACOR MARINE HLDGS COM 78413P101 674,551 15,640 2.37 7,710 53.77 1.2449
2023-05-12 2023-03-31 13F SEACOR MARINE HOLDINGS COM 78413P101 658,911 -8,577 -1.28 5,014 -17.99 0.8831
2023-03-03 2022-12-31 13F/A-1 SEACOR MARINE HOLDINGS COM 78413P101 667,488 0 0.00 6,114 63.00 1.2189
2023-02-14 2022-12-31 13F SEACOR MARINE HOLDINGS COM 78413P101 667,488 0 6,114 0.5793
2022-11-14 2022-09-30 13F SEACOR MARINE HOLDINGS COM 78413P101 667,488 17,265 2.66 3,751 0.16 0.8912
2022-08-12 2022-06-30 13F SEACOR MARINE HOLDINGS COM 78413P101 650,223 126,600 24.18 3,745 -11.38 0.9160
2022-05-16 2022-03-31 13F SEACOR MARINE HOLDINGS COM 78413P101 523,623 4,760 0.92 4,226 139.57 0.8552
2022-02-14 2021-12-31 13F SEACOR MARINE HOLDINGS COM 78413P101 518,863 134,650 35.05 1,764 -0.84 0.3575
2021-11-15 2021-09-30 13F SEACOR MARINE HOLDINGS COM 78413P101 384,213 1,370 0.36 1,779 5.39 0.4081
2021-08-16 2021-06-30 13F SEACOR MARINE HOLDINGS COM 78413P101 382,843 -84,530 -18.09 1,688 -32.24 0.4237
2021-05-17 2021-03-31 13F SEACOR MARINE HOLDINGS COM 78413P101 467,373 43,198 10.18 2,491 116.80 0.6285
2021-02-16 2020-12-31 13F SEACOR MARINE HOLDINGS COM 78413P101 424,175 136,251 47.32 1,149 96.41 0.3353
2020-11-16 2020-09-30 13F SEACOR MARINE HOLDINGS COM 78413P101 287,924 -31,601 -9.89 585 -28.22 0.2257
2020-08-14 2020-06-30 13F SEACOR MARINE HOLDINGS COM 78413P101 319,525 119,450 59.70 815 -6.96 0.3509
2020-05-15 2020-03-31 13F SEACOR MARINE HLDGS COM 78413P101 200,075 -2,511 -1.24 876 -68.65 0.5142
2020-02-14 2019-12-31 13F SEACOR MARINE HOLDINGS COM 78413P101 202,586 -3,630 -1.76 2,794 7.79 0.8912
2020-02-25 2019-09-30 13F/A-1 SEACOR MARINE HOLDINGS COM 78413P101 206,216 5,390 2.68 2,592 -13.72 0.7904
2019-11-14 2019-09-30 13F SEACOR MARINE HOLDINGS COM 78413P101 206,216 5,390 2,592 790,092.1469
2019-08-14 2019-06-30 13F SEACOR MARINE HOLDINGS COM 78413P101 200,826 64,248 47.04 3,004 65.33 1.0462
2019-05-14 2019-03-31 13F SEACOR MARINE HOLDINGS COM 78413P101 136,578 -2,043 -1.47 1,817 11.40 0.6410
2019-02-14 2018-12-31 13F SEACOR MARINE HOLDINGS COM 78413P101 138,621 -61,483 -30.73 1,631 -63.98 0.6382
2018-11-14 2018-09-30 13F SEACOR MARINE HOLDINGS COM 78413P101 200,104 -1,142 -0.57 4,528 -2.56 1.1922
2018-08-07 2018-06-30 13F SEACOR MARINE HOLDINGS COM 78413P101 201,246 149,872 291.73 4,647 375.64 1.2107
2018-05-15 2018-03-31 13F SEACOR MARINE HOLDINGS COM 78413P101 51,374 -1,114 -2.12 977 59.12 0.2703
2018-02-08 2017-12-31 13F SEACOR MARINE HOLDINGS COM 78413P101 52,488 -29,109 -35.67 614 -51.88 0.1601
2017-11-13 2017-09-30 13F SEACOR MARINE HOLDINGS COM 78413P101 81,597 -4,182 -4.88 1,276 -26.92 0.3500
2017-08-09 2017-06-30 13F SEACOR MARINE HOLDINGS COM 78413P101 85,779 85,779 1,746 0.5259
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.