Black Stone Minerals, L.P. - Limited Partnership
US ˙ NYSE ˙ US09225M1018

SecurityBSM / Black Stone Minerals, L.P. - Limited Partnership
InstitutionBarclays Plc
Latest Disclosed Ownership3,388 shares
Latest Disclosed Value $ 45,026
Barclays Plc reports 47.96% decrease in ownership of BSM / Black Stone Minerals, L.P. - Limited Partnership

On February 13, 2026 - Barclays Plc filed a 13F-HR form disclosing ownership of 3,388 shares of Black Stone Minerals, L.P. - Limited Partnership (US:BSM) valued at $45,027 USD as of December 31, 2025. The entity filed a previous 13F-HR/A on March 31, 2026 disclosing 6,511 shares of Black Stone Minerals, L.P. - Limited Partnership. This represents a change in shares of -47.96% during the quarter. The current value of the position is $47,161 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)
2026-02-13 2025-12-31 13F BLACK STONE MINERALS L P COM 09225M101 3,388 -3,123 -47.96 45 -47.06 0.0000
2026-03-31 2025-09-30 13F/A-3 BLACK STONE MINERALS L P COM 09225M101 6,511 4,879 298.96 86 304.76 0.0000
2026-03-19 2025-09-30 13F/A-2 BLACK STONE MINERALS L P COM 09225M101 39,925 38,293 603 0.0002
2025-11-12 2025-09-30 13F BLACK STONE MINERALS L P COM 09225M101 6,511 4,879 86 0.0000
2026-02-27 2025-06-30 13F/A-2 BLACK STONE MINERALS L P COM 09225M101 1,632 -551 -25.24 21 -36.36 0.0000
2025-08-14 2025-06-30 13F/A-1 BLACK STONE MINERALS L P COM 09225M101 1,632 -551 0 0.0000
2025-08-13 2025-06-30 13F BLACK STONE MINERALS L P COM 09225M101 1,632 -551 0 0.0000
2026-03-17 2025-03-31 13F/A-1 BLACK STONE MINERALS L P COM 09225M101 2,183 -35,212 -94.16 33 -93.94 0.0000
2025-05-15 2025-03-31 13F BLACK STONE MINERALS L P COM 09225M101 2,183 -35,212 0 0.0000
2026-03-19 2024-12-31 13F/A-1 BLACK STONE MINERALS L P COM 09225M101 37,395 -2,530 -6.34 546 -9.47 0.0002
2025-02-13 2024-12-31 13F BLACK STONE MINERALS L P COM 09225M101 37,395 -2,530 1 0.0002
2026-03-31 2024-09-30 13F/A-2 BLACK STONE MINERALS L P COM 09225M101 39,925 -36,361 -47.66 603 -49.62 0.0002
2024-11-19 2024-09-30 13F/A-1 BLACK STONE MINERALS L P COM 09225M101 39,925 -36,361 1 0.0002
2024-11-15 2024-09-30 13F BLACK STONE MINERALS L P COM 09225M101 39,925 -36,361 1 0.0000
2026-03-23 2024-06-30 13F/A-1 BLACK STONE MINERALS L P COM 09225M101 76,286 39,300 106.26 1,195 102.20 0.0004
2024-08-14 2024-06-30 13F BLACK STONE MINERALS L P COM 09225M101 76,286 39,300 1 0.0004
2026-03-24 2024-03-31 13F/A-1 BLACK STONE MINERALS L P COM 09225M101 36,986 36,986 591 0.0002
2024-05-15 2024-03-31 13F BLACK STONE MINERALS L P COM 09225M101 36,986 36,986 1 0.0002
2026-03-30 2023-03-31 13F/A-1 BLACK STONE MINERALS L P COM 09225M101 0 -2,033 -100.00 0 -100.00
2023-05-04 2023-03-31 13F BLACK STONE MINERALS L P COM 09225M101 0 -2,033 0 0.0000
2026-03-30 2022-12-31 13F/A-1 BLACK STONE MINERALS L P COM 09225M101 2,033 -44,455 -95.63 34 -95.32 0.0000
2023-02-13 2022-12-31 13F BLACK STONE MINERALS L P COM 09225M101 2,033 -44,455 0 0.0000
2022-11-03 2022-09-30 13F BLACK STONE MINERALS L P COM 09225M101 46,488 -4,291 -8.45 727 4.45 0.0008
2022-08-12 2022-06-30 13F BLACK STONE MINERALS L P COM 09225M101 50,779 18,543 57.52 696 60.37 0.0004
2022-05-16 2022-03-31 13F BLACK STONE MINERALS L P COM 09225M101 32,236 3,500 12.18 434 46.13 0.0003
2022-02-23 2021-12-31 13F/A-1 BLACK STONE MINERALS L P COM 09225M101 28,736 -1,092 -3.66 297 -17.27 0.0001
2022-02-14 2021-12-31 13F BLACK STONE MINERALS L P COM 09225M101 28,736 -1,092 297 0.0000
2021-11-09 2021-09-30 13F BLACK STONE MINERALS L P COM 09225M101 29,828 -3,505 -10.52 359 0.28 0.0002
2021-08-13 2021-06-30 13F BLACK STONE MINERALS L P COM 09225M101 33,333 -3,718 -10.03 358 10.84 0.0002
2021-05-13 2021-03-31 13F BLACK STONE MINERALS L P COM 09225M101 37,051 169 0.46 323 31.30 0.0002
2021-02-11 2020-12-31 13F BLACK STONE MINERALS L P COM 09225M101 36,882 -5,429 -12.83 246 -5.38 0.0001
2020-11-12 2020-09-30 13F BLACK STONE MINERALS L P COM 09225M101 42,311 3 0.01 260 -5.45 0.0002
2020-08-12 2020-06-30 13F BLACK STONE MINERALS L P COM 09225M101 42,308 42,308 275 0.0002
2020-05-13 2020-03-31 13F BLACK STONE MINERALS L P COM 09225M101 0 -37,642 -100.00 0 -100.00
2020-02-10 2019-12-31 13F BLACK STONE MINERALS L P COM 09225M101 37,642 20,156 115.27 479 92.37 0.0003
2019-11-15 2019-09-30 13F/A-1 BLACK STONE MINERALS L P COM 09225M101 17,486 -1,510 -7.95 249 -15.31 0.0002
2019-11-14 2019-09-30 13F BLACK STONE MINERALS L P COM 09225M101 17,486 -1,510 249 57.5691
2019-08-14 2019-06-30 13F BLACK STONE MINERALS L P COM 09225M101 18,996 400 2.15 294 -10.37 0.0002
2019-05-15 2019-03-31 13F BLACK STONE MINERALS L P COM 09225M101 18,596 -24,912 -57.26 328 -51.34 0.0002
2019-02-14 2018-12-31 13F BLACK STONE MINERALS L P COM 09225M101 43,508 17,760 68.98 674 43.71 0.0005
2018-11-14 2018-09-30 13F BLACK STONE MINERALS L P COM 09225M101 25,748 -4,092 -13.71 469 -15.04 0.0003
2018-08-14 2018-06-30 13F BLACK STONE MINERALS L P COM 09225M101 29,840 7,730 34.96 552 50.82 0.0005
2018-05-15 2018-03-31 13F BLACK STONE MINERALS L P COM 09225M101 22,110 -3,578 -13.93 366 -20.43 0.0003
2018-02-14 2017-12-31 13F BLACK STONE MINERALS L P COM 09225M101 25,688 -7,978 -23.70 460 -21.23 0.0004
2017-11-14 2017-09-30 13F BLACK STONE MINERALS L P COM 09225M101 33,666 -370,750 -91.68 584 -90.84 0.0006
2017-08-14 2017-06-30 13F BLACK STONE MINERALS L P COM 09225M101 404,416 -938,741 -69.89 6,374 -71.26 0.0068
2017-05-15 2017-03-31 13F BLACK STONE MINERALS L P COM 09225M101 1,343,157 -348,467 -20.60 22,176 -30.20 0.0241
2017-02-14 2016-12-31 13F BLACK STONE MINERALS L P COM 09225M101 1,691,624 1,646,966 3,687.95 31,769 3,896.10 0.0343
2016-11-14 2016-09-30 13F BLACK STONE MINERALS L P COM 09225M101 44,658 13,337 42.58 795 63.92 0.0009
2016-08-12 2016-06-30 13F BLACK STONE MINERALS L P COM 09225M101 31,321 -29,914 -48.85 485 -43.41 0.0006
2016-05-16 2016-03-31 13F BLACK STONE MINERALS L P COM 09225M101 61,235 21,229 53.06 857 53.04 0.0013
2016-02-12 2015-12-31 13F BLACK STONE MINERALS L P COM 09225M101 40,006 -24,828 -38.29 560 -33.65 0.0007
2015-11-13 2015-09-30 13F BLACK STONE MINERALS L P COM 09225M101 64,834 -216,288 -76.94 844 -82.34 0.0010
2015-08-14 2015-06-30 13F BLACK STONE MINERALS L P COM 09225M101 281,122 281,122 4,780 0.0054
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.