Borr Drilling Limited
DE ˙ DB ˙ BMG1466R1732
4,30 € ↓ -0,03 (-0,60%)
2026-06-04
DEL PRIS
SecurityDE:B2W / Borr Drilling Limited
InstitutionMarshall Wace, Llp
Latest Disclosed Ownership1,891,888 shares
Latest Disclosed Value $ 10,916,193
Marshall Wace, Llp reports 58.64% decrease in ownership of B2W / Borr Drilling Limited

On May 14, 2026 - Marshall Wace, Llp filed a 13F-HR form disclosing ownership of 1,891,888 shares of Borr Drilling Limited (DE:B2W) valued at $9,353,494 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 4,573,837 shares of Borr Drilling Limited. This represents a change in shares of -58.64% during the quarter. The current value of the position is $8,127,551 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 BORR DRILLING LT COMMON STOCK G1466R173 1,891,888 -2,681,949 -58.64 10,916 -40.78 0.0051
2026-02-13 2025-12-31 13F BORR DRILLING LT COMMON STOCK G1466R173 4,573,837 4,524,772 9,222.00 18,433 13,970.23 0.0168
2025-11-13 2025-09-30 13F BORR DRILLING LT COMMON STOCK G1466R173 49,065 25,414 107.45 132 204.65 0.0001
2025-08-13 2025-06-30 13F BORR DRILLING LT COMMON STOCK G1466R173 23,651 -1,523,564 -98.47 43 -98.73 0.0000
2025-05-15 2025-03-31 13F BORR DRILLING LT COMMON STOCK G1466R173 1,547,215 -81,060 -4.98 3,388 -46.65 0.0043
2025-02-13 2024-12-31 13F BORR DRILLING LT COMMON STOCK G1466R173 1,628,275 1,009,744 163.25 6,350 87.04 0.0076
2024-11-14 2024-09-30 13F BORR DRILLING LT COMMON STOCK G1466R173 618,531 -762,930 -55.23 3,396 -61.90 0.0041
2024-08-14 2024-06-30 13F BORR DRILLING LT COMMON STOCK G1466R173 1,381,461 -755,495 -35.35 8,910 -39.13 0.0119
2024-05-15 2024-03-31 13F BORR DRILLING LT COMMON STOCK G1466R173 2,136,956 20,663 0.98 14,638 -6.02 0.0223
2024-02-14 2023-12-31 13F BORR DRILLING LT COMMON STOCK G1466R173 2,116,293 -1,138,516 -34.98 15,576 -32.60 0.0264
2023-11-14 2023-09-30 13F BORR DRILLING LT COMMON STOCK G1466R173 3,254,809 2,534,243 351.70 23,109 325.97 0.0468
2023-08-14 2023-06-30 13F BORR DRILLING LT COMMON STOCK G1466R173 720,566 -1,166,636 -61.82 5,426 -62.07 0.0106
2023-05-15 2023-03-31 13F BORR DRILLING LT COMMON STOCK G1466R173 1,887,202 1,887,202 14,305 0.0304
2023-02-14 2022-12-31 13F BORR DRILLING LT COMMON STOCK G1466R173 0 -626,371 -100.00 0 -100.00
2022-11-14 2022-09-30 13F BORR DRILLING LT COMMON STOCK G1466R173 626,371 626,371 2,083 0.0046
2022-02-14 2021-12-31 13F BORR DRILLING LT COMMON STOCK G1466R207 0 -362,433 -100.00 0 -100.00
2021-11-15 2021-09-30 13F BORR DRILLING LT COMMON STOCK G1466R207 362,433 362,433 308 0.0013
2020-08-13 2020-06-30 13F BORR DRILLING LT COMMON STOCK G1466R207 0 -115,280 -100.00 0 -100.00
2020-05-15 2020-03-31 13F BORR DRILLING LT COMMON STOCK G1466R207 115,280 115,280 55 0.0005
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.