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

SecurityBSM / Black Stone Minerals, L.P. - Limited Partnership
InstitutionAristides Capital LLC
Latest Disclosed Ownership42,330 shares
Latest Disclosed Value $ 640,030
Aristides Capital LLC reports 19.19% increase in ownership of BSM / Black Stone Minerals, L.P. - Limited Partnership

On May 14, 2026 - Aristides Capital LLC filed a 13F-HR form disclosing ownership of 42,330 shares of Black Stone Minerals, L.P. - Limited Partnership (US:BSM) valued at $640,030 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on February 26, 2026 disclosing 35,516 shares of Black Stone Minerals, L.P. - Limited Partnership. This represents a change in shares of 19.19% during the quarter. The current value of the position is $587,964 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.

Upgrade to unlock premium data and export to Excel .

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 BLACK STONE MINERALS L P COM UNIT 09225M101 42,330 6,814 19.19 640 35.59 0.1386
2026-02-26 2025-12-31 13F/A-1 BLACK STONE MINERALS L P COM UNIT 09225M101 35,516 1,120 3.26 472 4.66 0.0835
2026-02-12 2025-12-31 13F BLACK STONE MINERALS L P COM UNIT 09225M101 35,516 1,120 472 0.0835
2025-11-13 2025-09-30 13F BLACK STONE MINERALS L P COM UNIT 09225M101 34,396 0 0.00 452 0.45 0.0652
2025-08-13 2025-06-30 13F BLACK STONE MINERALS L P COM UNIT 09225M101 34,396 0 0.00 450 -14.48 0.0895
2025-05-14 2025-03-31 13F BLACK STONE MINERALS L P COM UNIT 09225M101 34,396 0 0.00 525 4.58 0.1550
2025-02-13 2024-12-31 13F BLACK STONE MINERALS L P COM UNIT 09225M101 34,396 2,661 8.39 502 4.80 0.1029
2024-11-14 2024-09-30 13F BLACK STONE MINERALS L P COM UNIT 09225M101 31,735 0 0.00 479 -3.62 0.1487
2024-08-23 2024-06-30 13F/A-2 BLACK STONE MINERALS L P COM UNIT 09225M101 31,735 0 0.00 497 -1.97 0.1404
2024-08-14 2024-06-30 13F/A-1 BLACK STONE MINERALS L P COM UNIT 09225M101 31,735 0 497 0.1407
2024-08-14 2024-06-30 13F BLACK STONE MINERALS L P COM UNIT 09225M101 31,735 0 497 0.1407
2024-05-15 2024-03-31 13F BLACK STONE MINERALS L P COM UNIT 09225M101 31,735 -10,000 -23.96 507 -23.87 0.1864
2024-02-13 2023-12-31 13F BLACK STONE MINERALS L P COM UNIT 09225M101 41,735 0 0.00 666 -7.37 0.2434
2023-11-14 2023-09-30 13F BLACK STONE MINERALS L P COM UNIT 09225M101 41,735 0 0.00 719 8.12 0.3125
2023-08-14 2023-06-30 13F BLACK STONE MINERALS L P COM UNIT 09225M101 41,735 0 0.00 666 1.68 0.2706
2023-05-12 2023-03-31 13F BLACK STONE MINERALS L P COM UNIT 09225M101 41,735 0 0.00 655 -7.10 0.3497
2023-02-14 2022-12-31 13F BLACK STONE MINERALS L P COM UNIT 09225M101 41,735 0 0.00 704 7.81 0.3579
2022-11-15 2022-09-30 13F BLACK STONE MINERALS L P COM UNIT 09225M101 41,735 0 0.00 653 14.36 0.4918
2022-08-15 2022-06-30 13F BLACK STONE MINERALS L P COM UNIT 09225M101 41,735 0 0.00 571 1.60 0.3908
2022-05-16 2022-03-31 13F BLACK STONE MINERALS L P COM UNIT 09225M101 41,735 0 0.00 562 30.39 0.3435
2022-02-14 2021-12-31 13F BLACK STONE MINERALS L P COM UNIT 09225M101 41,735 0 0.00 431 -14.31 0.1975
2021-11-12 2021-09-30 13F BLACK STONE MINERALS L P COM UNIT 09225M101 41,735 -12,481 -23.02 503 -11.60 0.1839
2021-08-16 2021-06-30 13F BLACK STONE MINERALS L P COM UNIT 09225M101 54,216 54,216 569 0.1338
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.