샌드리지 에너지, Inc.
US ˙ NYSE ˙ US80007P8692

SecuritySD / SandRidge Energy, Inc.
InstitutionMarshall Wace, Llp
Latest Disclosed Ownership99,502 shares
Latest Disclosed Value $ 1,622,877
Marshall Wace, Llp ownership in SD / SandRidge Energy, Inc.

On May 14, 2026 - Marshall Wace, Llp filed a 13F-HR form disclosing ownership of 99,502 shares of SandRidge Energy, Inc. (US:SD) valued at $1,622,878 USD as of March 31, 2026. The entity filed a previous 13F-HR on November 13, 2025 disclosing 0 shares of SandRidge Energy, Inc.. The current value of the position is $1,473,625 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 SANDRIDGE ENERGY COMMON STOCK 80007P869 99,502 99,502 1,623 0.0008
2025-11-13 2025-09-30 13F SANDRIDGE ENERGY COMMON STOCK 80007P869 0 -10,895 -100.00 0 -100.00
2025-08-13 2025-06-30 13F SANDRIDGE ENERGY COMMON STOCK 80007P869 10,895 -144,417 -92.99 118 -93.40 0.0001
2025-05-15 2025-03-31 13F SANDRIDGE ENERGY COMMON STOCK 80007P869 155,312 155,312 1,774 0.0023
2022-02-14 2021-12-31 13F SANDRIDGE ENERGY COMMON STOCK 80007P869 0 -22,880 -100.00 0 -100.00
2021-11-15 2021-09-30 13F SANDRIDGE ENERGY COMMON STOCK 80007P869 22,880 -5,580 -19.61 298 66.48 0.0012
2021-08-13 2021-06-30 13F SANDRIDGE ENERGY COMMON STOCK 80007P869 28,460 28,460 179 0.0009
2019-08-14 2019-06-30 13F SANDRIDGE ENERGY COMMON STOCK 80007P869 0 -215,036 -100.00 0 -100.00
2019-05-29 2019-03-31 13F/A-1 SANDRIDGE ENERGY COMMON STOCK 80007P869 215,036 139,671 185.33 1,725 200.52 0.0162
2019-05-14 2019-03-31 13F SANDRIDGE ENERGY COMMON STOCK 80007P869 215,036 139,671 1,725
2019-02-14 2018-12-31 13F SANDRIDGE ENERGY COMMON STOCK 80007P869 75,365 75,365 -64.95 574 -66.72 0.0059
2018-03-29 2017-12-31 13F/A-1 SANDRIDGE ENERGY COMMON STOCK 80007P869 0 -78,876 -100.00 0 -100.00
2017-11-13 2017-09-30 13F SANDRIDGE ENERGY COMMON STOCK 80007P869 78,876 0 0.00 1,578 17.67 0.0733
2017-08-04 2017-06-30 13F SANDRIDGE ENERGY COMMON STOCK 80007P869 78,876 78,876 0.00 1,341 -15.02 0.0591
2015-08-14 2015-06-30 13F SANDRIDGE ENERGY COMMON STOCK 80007P307 0 -22,409 -100.00 0 -100.00
2015-05-11 2015-03-31 13F SANDRIDGE ENERGY COMMON STOCK 80007P307 22,409 4,100 22.39 40 21.21 0.0005
2015-02-17 2014-12-31 13F SANDRIDGE ENERGY COMMON STOCK 80007P307 18,309 18,309 33 0.0004
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.