SEACOR Marine Holdings Inc.
DE ˙ DB ˙ US78413P1012
6,40 € ↓ -0,15 (-2,29%)
2026-06-03
DEL PRIS
SecurityDE:SQZ / SEACOR Marine Holdings Inc.
InstitutionMorgan Stanley
Latest Disclosed Ownership252,311 shares
Latest Disclosed Value $ 1,806,547
Morgan Stanley reports 1.83% increase in ownership of SQZ / SEACOR Marine Holdings Inc.

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 252,311 shares of SEACOR Marine Holdings Inc. (DE:SQZ) valued at $1,627,406 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 247,775 shares of SEACOR Marine Holdings Inc.. This represents a change in shares of 1.83% during the quarter. The current value of the position is $1,614,790 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 252,311 4,536 1.83 1,807 21.13 0.0001
2026-05-27 2025-12-31 13F/A-1 SEACOR MARINE HLDGS COM 78413P101 247,775 -32,992 -11.75 1,492 -18.17 0.0001
2026-02-13 2025-12-31 13F SEACOR MARINE HLDGS COM 78413P101 247,775 -32,992 1,492 0.0001
2026-05-27 2025-09-30 13F/A-1 SEACOR MARINE HLDGS COM 78413P101 280,767 -18,591 -6.21 1,822 19.40 0.0001
2025-11-14 2025-09-30 13F SEACOR MARINE HLDGS COM 78413P101 280,767 -18,591 1,822 0.0001
2025-08-15 2025-06-30 13F SEACOR MARINE HLDGS COM 78413P101 299,358 -3,068 -1.01 1,527 -0.26 0.0001
2025-05-15 2025-03-31 13F SEACOR MARINE HLDGS COM 78413P101 302,426 -39,808 -11.63 1,530 -31.85 0.0001
2025-05-15 2024-12-31 13F/A-1 SEACOR MARINE HLDGS COM 78413P101 342,234 -92,207 -21.22 2,245 -46.45 0.0002
2025-02-14 2024-12-31 13F SEACOR MARINE HLDGS COM 78413P101 342,234 -92,207 2,245 0.0002
2025-05-14 2024-09-30 13F/A-2 SEACOR MARINE HLDGS COM 78413P101 434,441 15,848 3.79 4,192 -25.75 0.0003
2025-02-14 2024-09-30 13F/A-1 SEACOR MARINE HLDGS COM 78413P101 434,441 15,848 4,192 0.0003
2024-11-14 2024-09-30 13F SEACOR MARINE HLDGS COM 78413P101 434,441 15,848 4,192 0.0000
2025-05-14 2024-06-30 13F/A-2 SEACOR MARINE HLDGS COM 78413P101 418,593 11,379 2.79 5,647 -0.53 0.0004
2024-10-17 2024-06-30 13F/A-1 SEACOR MARINE HLDGS COM 78413P101 418,593 11,379 5,647 0.0004
2024-08-14 2024-06-30 13F SEACOR MARINE HLDGS COM 78413P101 418,593 11,379 5,647 0.0004
2024-10-17 2024-03-31 13F/A-2 SEACOR MARINE HLDGS COM 78413P101 407,214 11,263 2.84 5,677 13.86 0.0005
2024-08-16 2024-03-31 13F/A-1 SEACOR MARINE HLDGS COM 78413P101 407,214 11,263 5,677 0.0001
2024-05-15 2024-03-31 13F SEACOR MARINE HLDGS COM 78413P101 407,214 11,263 5,677 0.0005
2024-08-16 2023-12-31 13F/A-1 SEACOR MARINE HLDGS COM 78413P101 395,951 50,333 14.56 4,985 3.92 0.0004
2024-02-13 2023-12-31 13F SEACOR MARINE HLDGS COM 78413P101 395,951 50,333 4,985 0.0004
2023-11-15 2023-09-30 13F SEACOR MARINE HLDGS COM 78413P101 345,618 2,428 0.71 4,797 22.31 0.0005
2023-08-14 2023-06-30 13F SEACOR MARINE HLDGS COM 78413P101 343,190 -11,110 -3.14 3,923 45.47 0.0004
2023-05-15 2023-03-31 13F SEACOR MARINE HLDGS COM 78413P101 354,300 65,555 22.70 2,696 1.97 0.0003
2023-02-14 2022-12-31 13F SEACOR MARINE HLDGS COM 78413P101 288,745 16,443 6.04 2,645 72.81 0.0003
2022-11-14 2022-09-30 13F SEACOR MARINE HLDGS COM 78413P101 272,302 14,864 5.77 1,530 3.17 0.0002
2022-10-27 2022-06-30 13F/A-1 SEACOR MARINE HLDGS COM 78413P101 257,438 30,257 13.32 1,483 -19.14 0.0002
2022-08-15 2022-06-30 13F SEACOR MARINE HLDGS COM 78413P101 257,438 30,257 1,483 0.0000
2022-10-27 2022-03-31 13F/A-1 SEACOR MARINE HLDGS COM 78413P101 227,181 -1,300 -0.57 1,834 136.04 0.0002
2022-05-13 2022-03-31 13F SEACOR MARINE HLDGS COM 78413P101 227,181 -1,300 1,834 0.0002
2022-02-14 2021-12-31 13F SEACOR MARINE HLDGS COM 78413P101 228,481 24,047 11.76 777 -17.86 0.0001
2021-11-15 2021-09-30 13F SEACOR MARINE HLDGS COM 78413P101 204,434 54,907 36.72 946 43.55 0.0001
2021-08-23 2021-06-30 13F/A-1 SEACOR MARINE HLDGS COM 78413P101 149,527 -42,353 -22.07 659 -35.58 0.0001
2021-08-16 2021-06-30 13F SEACOR MARINE HLDGS COM 78413P101 149,527 -42,353 659 0.0000
2021-05-17 2021-03-31 13F SEACOR MARINE HLDGS COM 78413P101 191,880 104,364 119.25 1,023 331.65 0.0002
2021-02-16 2020-12-31 13F SEACOR MARINE HLDGS COM 78413P101 87,516 12,130 16.09 237 54.90 0.0000
2020-11-13 2020-09-30 13F SEACOR MARINE HLDGS COM 78413P101 75,386 22,997 43.90 153 15.04 0.0000
2020-08-14 2020-06-30 13F SEACOR MARINE HLDGS COM 78413P101 52,389 22,185 73.45 133 0.00 0.0000
2020-05-26 2020-03-31 13F/A-1 SEACOR MARINE HLDGS COM 78413P101 30,204 -24,295 -44.58 133 -82.31 0.0000
2020-05-15 2020-03-31 13F SEACOR MARINE HLDGS COM 78413P101 30,204 -24,295 133 10.2172
2020-02-14 2019-12-31 13F SEACOR MARINE HLDGS COM 78413P101 54,499 19,355 55.07 752 70.52 0.0002
2019-11-14 2019-09-30 13F SEACOR MARINE HLDGS COM 78413P101 35,144 15,953 83.13 441 53.66 0.0001
2019-08-14 2019-06-30 13F SEACOR MARINE HLDGS COM 78413P101 19,191 -14,129 -42.40 287 -35.21 0.0001
2019-05-15 2019-03-31 13F SEACOR MARINE HLDGS COM 78413P101 33,320 -43,217 -56.47 443 -50.72 0.0001
2019-02-14 2018-12-31 13F SEACOR MARINE HLDGS COM 78413P101 76,537 11,495 17.67 899 -38.93 0.0003
2019-04-23 2018-09-30 13F/A-2 SEACOR MARINE HLDGS COM 78413P101 65,042 -8,722 -11.82 1,472 -13.56 0.0004
2018-11-20 2018-09-30 13F/A-1 SEACOR MARINE HLDGS COM 78413P101 65,042 0 1,472 0.0004
2018-11-14 2018-09-30 13F SEACOR MARINE HLDGS COM 78413P101 65,042 -8,722 1,472
2019-04-23 2018-06-30 13F/A-1 SEACOR MARINE HLDGS COM 78413P101 73,764 -14,459 -16.39 1,703 1.49 0.0005
2018-08-14 2018-06-30 13F SEACOR MARINE HLDGS COM 78413P101 73,764 -14,459 1,703
2019-04-23 2018-03-31 13F/A-1 SEACOR MARINE HLDGS COM 78413P101 88,223 -47,753 -35.12 1,678 5.40 0.0005
2018-05-14 2018-03-31 13F SEACOR MARINE HLDGS COM 78413P101 88,223 -47,753 1,678
2019-04-23 2017-12-31 13F/A-1 SEACOR MARINE HLDGS COM 78413P101 135,976 10,679 8.52 1,592 -18.78 0.0004
2018-02-14 2017-12-31 13F SEACOR MARINE HLDGS COM 78413P101 135,976 10,679 1,592
2017-11-14 2017-09-30 13F SEACOR MARINE HLDGS COM 78413P101 125,297 35,015 38.78 1,960 6.58 0.0006
2017-08-11 2017-06-30 13F SEACOR MARINE HLDGS COM 78413P101 90,282 90,282 1,839 0.0006
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.