SEACOR Marine Holdings Inc.
DE ˙ DB ˙ US78413P1012
6,10 € ↓ -0,30 (-4,69%)
2026-06-04
DEL PRIS
SecurityDE:SQZ / SEACOR Marine Holdings Inc.
InstitutionRenaissance Technologies Llc
ManagerJames Simons
Latest Disclosed Ownership120,400 shares
Latest Disclosed Value $ 862,064
Renaissance Technologies Llc reports 1.78% increase in ownership of SQZ / SEACOR Marine Holdings Inc.

On May 14, 2026 - Renaissance Technologies Llc filed a 13F-HR form disclosing ownership of 120,400 shares of SEACOR Marine Holdings Inc. (DE:SQZ) valued at $776,580 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 118,300 shares of SEACOR Marine Holdings Inc.. This represents a change in shares of 1.78% during the quarter. The current value of the position is $734,440 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)
2026-05-14 2026-03-31 13F SEACOR MARINE HLDGS COM 78413P101 120,400 2,100 1.78 862 21.07 0.0013
2026-02-12 2025-12-31 13F SEACOR MARINE HLDGS COM 78413P101 118,300 -60,200 -33.73 712 -38.51 0.0011
2025-11-13 2025-09-30 13F SEACOR MARINE HLDGS COM 78413P101 178,500 -33,900 -15.96 1,158 6.93 0.0015
2025-08-13 2025-06-30 13F SEACOR MARINE HLDGS COM 78413P101 212,400 42,100 24.72 1,083 25.78 0.0014
2025-05-14 2025-03-31 13F SEACOR MARINE HLDGS COM 78413P101 170,300 29,900 21.30 862 -6.51 0.0013
2025-02-13 2024-12-31 13F SEACOR MARINE HLDGS COM 78413P101 140,400 -45,800 -24.60 921 -48.72 0.0014
2024-11-13 2024-09-30 13F SEACOR MARINE HLDGS COM 78413P101 186,200 25,400 15.80 1,797 -17.20 0.0027
2024-08-09 2024-06-30 13F SEACOR MARINE HLDGS COM 78413P101 160,800 -11,300 -6.57 2,169 108,350.00 0.0037
2024-05-13 2024-03-31 13F SEACOR MARINE HLDGS COM 78413P101 172,100 58,000 50.83 2 100.00 0.0038
2024-02-13 2023-12-31 13F SEACOR MARINE HLDGS COM 78413P101 114,100 12,900 12.75 1 0.00 0.0022
2023-11-14 2023-09-30 13F SEACOR MARINE HLDGS COM 78413P101 101,200 18,300 22.07 1 0.0024
2023-08-11 2023-06-30 13F SEACOR MARINE HLDGS COM 78413P101 82,900 11,300 15.78 1 0.0014
2023-05-12 2023-03-31 13F SEACOR MARINE HLDGS COM 78413P101 71,600 3,900 5.76 1 0.0007
2023-02-13 2022-12-31 13F SEACOR MARINE HLDGS COM 78413P101 67,700 -3,400 -4.78 1 -100.00 0.0008
2022-11-14 2022-09-30 13F SEACOR MARINE HLDGS COM 78413P101 71,100 -3,400 -4.56 400 -6.76 0.0006
2022-08-12 2022-06-30 13F SEACOR MARINE HLDGS COM 78413P101 74,500 45,400 156.01 429 82.55 0.0005
2022-05-13 2022-03-31 13F SEACOR MARINE HLDGS COM 78413P101 29,100 2,100 7.78 235 155.43 0.0003
2022-02-11 2021-12-31 13F SEACOR MARINE HLDGS COM 78413P101 27,000 1,800 7.14 92 -21.37 0.0001
2021-11-12 2021-09-30 13F SEACOR MARINE HLDGS COM 78413P101 25,200 -100 -0.40 117 4.46 0.0002
2021-08-13 2021-06-30 13F SEACOR MARINE HLDGS COM 78413P101 25,300 -6,100 -19.43 112 -32.93 0.0001
2021-05-13 2021-03-31 13F SEACOR MARINE HLDGS COM 78413P101 31,400 15,500 97.48 167 288.37 0.0002
2021-02-10 2020-12-31 13F SEACOR MARINE HLDGS COM 78413P101 15,900 15,900 43 0.0000
2020-11-13 2020-09-30 13F SEACOR MARINE HLDGS COM 78413P101 0 -27,546 -100.00 0 -100.00
2020-08-13 2020-06-30 13F SEACOR MARINE HLDGS COM 78413P101 27,546 -10,115 -26.86 70 -57.58 0.0001
2020-05-14 2020-03-31 13F SEACOR MARINE HLDGS COM 78413P101 37,661 -11,711 -23.72 165 -75.77 0.0002
2020-02-13 2019-12-31 13F SEACOR MARINE HLDGS COM 78413P101 49,372 5,500 12.54 681 23.59 0.0005
2019-11-13 2019-09-30 13F SEACOR MARINE HLDGS COM 78413P101 43,872 7,100 19.31 551 0.18 0.0005
2019-08-12 2019-06-30 13F SEACOR MARINE HLDGS COM 78413P101 36,772 36,772 550 0.0005
2019-02-12 2018-12-31 13F SEACOR MARINE HLDGS COM 78413P101 0 -9,200 -100.00 0 -100.00
2018-11-13 2018-09-30 13F SEACOR MARINE HLDGS COM 78413P101 9,200 9,200 208 0.0002
2017-11-13 2017-09-30 13F SEACOR MARINE HLDGS COM 78413P101 0 -82,675 -100.00 0 -100.00
2017-08-11 2017-06-30 13F SEACOR MARINE HLDGS COM 78413P101 82,675 82,675 1,683 0.0021
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.