D Mark DeWalch - BSM / Black Stone Minerals, L.P. - Limited Partnership - Insider Trade Report

Insider Purchases - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made by D Mark DeWalch in BSM / Black Stone Minerals, L.P. - Limited Partnership. This analysis helps to understand if the insider consistently generates abnormal returns, and is worth following. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date	Reported Shares	Reported Price	Adjusted Shares	Adjusted Price	Cost Basis	Days to Max	Price at Max	Max Profit ($)	Max Return (%)
2026-06-01	36,363	13.6217	36,363	13.6217	495,326	2	13.9200	10,848	2.19
2026-05-29	36,363	13.4760	36,363	13.4760	490,028
2026-05-28	37,650	13.2096	37,650	13.2096	497,341
2024-08-15	34,200	14.6200	34,200	14.6200	500,004
2024-02-26	3,250	15.4699	3,250	15.4699	50,277
2023-11-17	22,297	17.4912	22,297	17.4912	390,001
2023-11-16	21,703	17.1382	21,703	17.1382	371,950
2023-03-06	31,150	15.8491	31,150	15.8491	493,699
2023-03-06	3,100	15.8529	3,100	15.8529	49,144
2019-06-10	5,350	16.4400	5,350	16.4400	87,954
2018-11-16	1,175	17.0588	1,175	17.0588	20,044
2015-07-30	15	14.5600	15	14.5600	218
2015-05-06	2,200	19.0000	2,200	19.0000	41,800
2015-05-06	1,500	19.0000	1,500	19.0000	28,500
2015-05-06	1,500	19.0000	1,500	19.0000	28,500

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

Insider Sales - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made by D Mark DeWalch in BSM / Black Stone Minerals, L.P. - Limited Partnership. A consistent pattern of loss avoidance may suggest that future sale transactions may predict declines in price. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date	Reported Shares	Reported Price	Adjusted Shares	Adjusted Price	Cost Basis	Days to Min	Price at Min	Max Loss Avoided ($)	Max Loss Avoided (%)
There are no known unplanned open-market trades for this insider

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

Insider Transaction History