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United States Oil & Gas

Black Stone Minerals LP (BSM)

Track

Over the last 90 days, Black Stone Minerals LP saw significant insider buying, with a net value of $1.83 million. Notably, D Mark DeWalch and Thomas L Jr Carter made substantial purchases. While there were some proposed and executed sales by other insiders, the overall trend indicates net buying activity, particularly among executives.
Stock chart
Ticker: BSM Exchange: NYS
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
DeWalch D Mark
1 purchase — total 495,326 USD
Buy 1 Jun 2026
Value US$716,993.73 | Price 434.11 | Shares 40,439
Buy 29 May 2026
Value US$2,560,714.39 | Price 290.85 | Shares 90,440
Buy 28 May 2026
Value US$497,341.44 | Price 13.21 | Shares 37,650
Buy 13 May 2026
Value US$15,119.89 | Price 13.50 | Shares 1,120
Sale 12 May 2026
Value US$149,697.19 | Price 13.45 | Shares 11,128
Buy 12 May 2026
Value US$258,107.81 | Price 13.48 | Shares 19,154
Proposed sale 12 May 2026
Value US$149,697.19 | Price 13.45 | Shares 11,128
Buy 11 May 2026
Value US$336,855.00 | Price 13.47 | Shares 25,000
Buy 8 May 2026
Value US$314,372.23 | Price 13.32 | Shares 23,604
Planned sale 5 May 2026
Value US$403,998.73 | Price 13.75 | Shares 29,386
Proposed sale 5 May 2026
Value US$418,456.64 | Price 14.24 | Shares 29,386
Sale 6 Apr 2026
Value US$424,677.66 | Price 14.45 | Shares 29,386
Proposed sale 6 Apr 2026
Value US$430,504.90 | Price 14.65 | Shares 29,386
Sale 5 Mar 2026
Value US$461,584.87 | Price 15.25 | Shares 30,276
Proposed sale 5 Mar 2026
Value US$457,773.12 | Price 15.12 | Shares 30,276
Buy 12 Sep 2025
Value US$176,204.00 | Price 12.59 | Shares 14,000
Buy 11 Sep 2025
Value US$16,108.95 | Price 12.39 | Shares 1,300
Buy 10 Sep 2025
Value US$129,794.04 | Price 12.32 | Shares 10,536
Buy 9 Sep 2025
Value US$15,769.61 | Price 12.07 | Shares 1,307
Buy 8 Sep 2025
Value US$160,937.48 | Price 11.90 | Shares 13,527
Buy 20 Aug 2025
Value US$252,619.50 | Price 12.03 | Shares 21,000
Buy 19 Aug 2025
Value US$239,330.00 | Price 11.97 | Shares 20,000
Buy 12 Aug 2025
Value US$113,723.04 | Price 12.36 | Shares 9,200
Buy 11 Aug 2025
Value US$302,505.00 | Price 12.10 | Shares 25,000
Buy 8 Aug 2025
Value US$335,546.75 | Price 12.20 | Shares 27,500
Buy 7 Aug 2025
Value US$241,295.73 | Price 12.24 | Shares 19,710
Sale 29 May 2025
Value US$500,338.17 | Price 13.56 | Shares 36,900
Proposed sale 29 May 2025
Value US$500,338.17 | Price 13.56 | Shares 36,900
Buy 21 May 2025
Value US$196,069.00 | Price 13.52 | Shares 14,500
Buy 6 Sep 2024
Value US$1,411,800.00 | Price 14.12 | Shares 100,000
Proposed sale 26 Aug 2024
Value US$274,956.70 | Price 14.84 | Shares 18,532
Sale 26 Aug 2024
Value US$274,957.43 | Price 14.84 | Shares 18,532
Buy 15 Aug 2024
Value US$500,004.00 | Price 14.62 | Shares 34,200
Buy 26 Feb 2024
Value US$50,277.18 | Price 15.47 | Shares 3,250
Buy 8 Dec 2023
Value US$33,617.49 | Price 16.20 | Shares 2,075
Buy 7 Dec 2023
Value US$463,614.30 | Price 15.99 | Shares 29,000
Buy 17 Nov 2023
Value US$390,001.29 | Price 17.49 | Shares 22,297
Buy 16 Nov 2023
Value US$371,950.35 | Price 17.14 | Shares 21,703
Buy 8 Nov 2023
Value US$153,987.30 | Price 17.11 | Shares 9,000
Buy 7 Nov 2023
Value US$441,422.58 | Price 17.96 | Shares 24,577
Buy 6 Nov 2023
Value US$455,182.50 | Price 18.21 | Shares 25,000
Buy 3 Nov 2023
Value US$458,592.50 | Price 18.34 | Shares 25,000
Buy 2 Nov 2023
Value US$456,840.00 | Price 18.27 | Shares 25,000
Buy 5 May 2023
Value US$494,006.64 | Price 15.53 | Shares 31,800
Sale 4 May 2023
Value US$1,505,570.00 | Price 15.06 | Shares 100,000
Proposed sale 4 May 2023
Value US$1,505,570.00 | Price 15.06 | Shares 100,000
Buy 6 Mar 2023
Value US$49,143.99 | Price 15.85 | Shares 3,100
Buy 6 Mar 2023
Value US$493,699.46 | Price 15.85 | Shares 31,150
Buy 27 Feb 2023
Value US$467,262.00 | Price 15.58 | Shares 30,000
Buy 24 Feb 2023
Value US$497,955.25 | Price 15.32 | Shares 32,500
Buy 7 Dec 2022
Value US$406,068.62 | Price 17.29 | Shares 23,492
Buy 6 Dec 2022
Value US$432,805.00 | Price 17.31 | Shares 25,000
Sale 4 Nov 2022
Value US$102,866.11 | Price 19.41 | Shares 5,300
Buy 4 Nov 2022
Value US$487,197.50 | Price 19.49 | Shares 25,000
Buy 3 Nov 2022
Value US$481,545.00 | Price 19.26 | Shares 25,000
Buy 15 Sep 2022
Value US$401,586.29 | Price 16.30 | Shares 24,631
Buy 14 Sep 2022
Value US$409,785.00 | Price 16.39 | Shares 25,000
Buy 13 Sep 2022
Value US$404,955.00 | Price 16.20 | Shares 25,000
Buy 12 Sep 2022
Value US$406,812.50 | Price 16.27 | Shares 25,000
Buy 5 Aug 2022
Value US$446,250.00 | Price 14.88 | Shares 30,000
Buy 4 Aug 2022
Value US$297,922.00 | Price 14.90 | Shares 20,000
Sale 1 Mar 2022
Value US$489,712.00 | Price 12.24 | Shares 40,000
Sale 25 Feb 2022
Value US$709,362.00 | Price 11.82 | Shares 60,000
Sale 19 May 2021
Value US$491,000.00 | Price 9.82 | Shares 50,000
Sale 6 May 2021
Value US$525,500.00 | Price 10.51 | Shares 50,000
Planned sale 28 Feb 2020
Value US$43,288.79 | Price 8.60 | Shares 5,032
Planned sale 9 Jan 2020
Value US$62,365.87 | Price 13.25 | Shares 4,707
Planned sale 8 Jan 2020
Value US$389,697.00 | Price 12.99 | Shares 30,000
Sale 14 Jun 2019
Value US$31.70 | Price 15.85 | Shares 2
Buy 10 Jun 2019
Value US$87,954.00 | Price 16.44 | Shares 5,350
Planned sale 8 May 2019
Value US$1,850.00 | Price 18.50 | Shares 100
Planned sale 7 May 2019
Value US$844.65 | Price 18.77 | Shares 45
Planned sale 6 May 2019
Value US$284,258.15 | Price 18.51 | Shares 15,358
Planned sale 22 Apr 2019
Value US$7,400.00 | Price 18.50 | Shares 400
Planned sale 17 Apr 2019
Value US$114,121.31 | Price 17.40 | Shares 6,557
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-06-02 2026-06-01 B Purchase
2.7
DeWalch D Mark
Non-Executive Director
40,439 -40.0%
434.11
US$716,994 		40,439 -40.0% 434.11 US$716,994
2026-06-02 2026-05-29 B Purchase
2.7
DeWalch D Mark
Non-Executive Director
90,440 -21.2%
290.85
US$2,560,714 		90,440 -21.2% 290.85 US$2,560,714
2026-05-28 2026-05-28 B Purchase
2.7
DeWalch D Mark
Non-Executive Director
11,374 -43.5%
218.90
US$3,150,299 		11,374 -43.5% 218.90 US$3,150,299
2026-05-14 2026-05-13 B Purchase
3.4
Carter Thomas L Jr

Executive Chairman

Executive Director
1,120 +0.0%
13.50
US$15,120 		1,120 +0.0% 13.50 US$15,120
2026-05-13 2026-05-12 S Sale
Longmaid Ashley J
Non-Executive Director
11,128 -7.5%
13.45
US$149,697 		11,128 -7.5% 13.45 US$149,697
2026-05-12 2026-05-12 B Purchase
3.4
Carter Thomas L Jr

Executive Chairman

Executive Director
19,154 +0.5%
13.48
US$258,108 		19,154 +0.5% 13.48 US$258,108
2026-05-12 2026-05-12 PrS Proposed sale
ASHLEY J LONGMAID

Director

Non-Executive Director
11,128
13.45
US$149,697 		11,128 13.45 US$149,697
2026-05-12 2026-05-11 B Purchase
3.4
Carter Thomas L Jr

Executive Chairman

Executive Director
25,000 +0.7%
13.47
US$336,855 		25,000 +0.7% 13.47 US$336,855
2026-05-12 2026-05-08 B Purchase
3.4
Carter Thomas L Jr

Executive Chairman

Executive Director
23,604 +0.7%
13.32
US$314,372 		23,604 +0.7% 13.32 US$314,372
2026-05-06 2026-05-05 PlS Planned sale
2.1
Putman Luke Stevens

SVP, General Counsel, and Sec

Officer
29,386 -4.0%
13.75
US$403,999 		29,386 -4.0% 13.75 US$403,999
2026-05-05 2026-05-05 PrS Proposed sale
2.1
LUKE STEVENS PUTMAN

Officer

Officer
29,386
14.24
US$418,457 		29,386 14.24 US$418,457
2026-04-07 2026-04-06 S Sale
2.1
Putman Luke Stevens

SVP, General Counsel, and Sec

Officer
29,386 -3.9%
14.45
US$424,678 		29,386 -3.9% 14.45 US$424,678
2026-04-06 2026-04-06 PrS Proposed sale
2.1
LUKE STEVENS PUTMAN

Officer

Officer
29,386
14.65
US$430,505 		29,386 14.65 US$430,505
2026-03-06 2026-03-05 S Sale
2.1
Putman Luke Stevens

SVP, General Counsel, and Sec

Officer
30,276 -3.8%
15.25
US$461,585 		30,276 -3.8% 15.25 US$461,585
2026-03-05 2026-03-05 PrS Proposed sale
2.1
LUKE STEVENS PUTMAN

Officer

Officer
30,276
15.12
US$457,773 		30,276 15.12 US$457,773
2025-09-12 2025-09-12 B Purchase
3.4
Carter Thomas L Jr

CEO, President, and Chairman

Executive Director
14,000 +0.4%
12.59
US$176,204 		14,000 +0.4% 12.59 US$176,204
2025-09-12 2025-09-11 B Purchase
3.4
Carter Thomas L Jr

CEO, President, and Chairman

Executive Director
1,300 +0.0%
12.39
US$16,109 		1,300 +0.0% 12.39 US$16,109
2025-09-10 2025-09-10 B Purchase
3.4
Carter Thomas L Jr

CEO, President, and Chairman

Executive Director
10,536 +0.3%
12.32
US$129,794 		10,536 +0.3% 12.32 US$129,794
2025-09-10 2025-09-09 B Purchase
3.4
Carter Thomas L Jr

CEO, President, and Chairman

Executive Director
1,307 +0.0%
12.07
US$15,770 		1,307 +0.0% 12.07 US$15,770
2025-09-10 2025-09-08 B Purchase
3.4
Carter Thomas L Jr

CEO, President, and Chairman

Executive Director
13,527 +0.4%
11.90
US$160,937 		13,527 +0.4% 11.90 US$160,937
2025-08-20 2025-08-20 B Purchase
3.4
Carter Thomas L Jr

CEO, President, and Chairman

Executive Director
21,000 +0.6%
12.03
US$252,620 		21,000 +0.6% 12.03 US$252,620
2025-08-20 2025-08-19 B Purchase
3.4
Carter Thomas L Jr

CEO, President, and Chairman

Executive Director
20,000 +0.6%
11.97
US$239,330 		20,000 +0.6% 11.97 US$239,330
2025-08-14 2025-08-12 B Purchase
3.4
Carter Thomas L Jr

CEO, President, and Chairman

Executive Director
9,200 +0.3%
12.36
US$113,723 		9,200 +0.3% 12.36 US$113,723
2025-08-11 2025-08-11 B Purchase
3.4
Carter Thomas L Jr

CEO, President, and Chairman

Executive Director
25,000 +0.7%
12.10
US$302,505 		25,000 +0.7% 12.10 US$302,505
2025-08-11 2025-08-08 B Purchase
3.4
Carter Thomas L Jr

CEO, President, and Chairman

Executive Director
27,500 +0.8%
12.20
US$335,547 		27,500 +0.8% 12.20 US$335,547
2025-08-11 2025-08-07 B Purchase
3.4
Carter Thomas L Jr

CEO, President, and Chairman

Executive Director
19,710 +0.6%
12.24
US$241,296 		19,710 +0.6% 12.24 US$241,296
2025-05-30 2025-05-29 S Sale
2.5
Clark Carrie Pearson

SVP, Chief Commercial Officer

Officer
36,900 -18.2%
13.56
US$500,338 		36,900 -18.2% 13.56 US$500,338
2025-05-29 2025-05-29 PrS Proposed sale
2.5
CARRIE P CLARK

Officer

Officer
36,900
13.56
US$500,338 		36,900 13.56 US$500,338
2025-05-21 2025-05-21 B Purchase
3.4
Carter Thomas L Jr

CEO, President, and Chairman

Executive Director
14,500 +0.4%
13.52
US$196,069 		14,500 +0.4% 13.52 US$196,069
2024-09-09 2024-09-06 B Purchase
3.4
Carter Thomas L Jr

CEO, President, and Chairman

Executive Director
100,000 +3.3%
14.12
US$1,411,800 		100,000 +3.3% 14.12 US$1,411,800
2024-08-26 2024-08-26 PrS Proposed sale
2.5
CARRIE P CLARK

Officer

Officer
18,532
14.84
US$274,957 		18,532 14.84 US$274,957
2024-08-26 2024-08-26 S Sale
2.5
Clark Carrie Pearson

SVP, Chief Commercial Officer

Officer
18,532 -13.7%
14.84
US$274,957 		18,532 -13.7% 14.84 US$274,957
2024-08-15 2024-08-15 B Purchase
2.7
DeWalch D Mark
Non-Executive Director
34,200 +10.6%
14.62
US$500,004 		34,200 +10.6% 14.62 US$500,004
2024-02-27 2024-02-26 B Purchase
2.7
DeWalch D Mark
Non-Executive Director
3,250 +1.0%
15.47
US$50,277 		3,250 +1.0% 15.47 US$50,277
2023-12-08 2023-12-08 B Purchase
3.4
Carter Thomas L Jr

CEO, President, and Chairman

Executive Director
2,075 +0.1%
16.20
US$33,617 		2,075 +0.1% 16.20 US$33,617
2023-12-08 2023-12-07 B Purchase
3.4
Carter Thomas L Jr

CEO, President, and Chairman

Executive Director
29,000 +1.1%
15.99
US$463,614 		29,000 +1.1% 15.99 US$463,614
2023-11-17 2023-11-17 B Purchase
2.7
DeWalch D Mark
Non-Executive Director
22,297 +7.9%
17.49
US$390,001 		22,297 +7.9% 17.49 US$390,001
2023-11-17 2023-11-16 B Purchase
2.7
DeWalch D Mark
Non-Executive Director
21,703 +8.3%
17.14
US$371,950 		21,703 +8.3% 17.14 US$371,950
2023-11-08 2023-11-08 B Purchase
3.4
Carter Thomas L Jr

CEO and Chairman

Executive Director
9,000 +0.3%
17.11
US$153,987 		9,000 +0.3% 17.11 US$153,987
2023-11-08 2023-11-07 B Purchase
3.4
Carter Thomas L Jr

CEO and Chairman

Executive Director
24,577 +0.9%
17.96
US$441,423 		24,577 +0.9% 17.96 US$441,423
2023-11-08 2023-11-06 B Purchase
3.4
Carter Thomas L Jr

CEO and Chairman

Executive Director
25,000 +0.9%
18.21
US$455,182 		25,000 +0.9% 18.21 US$455,182
2023-11-06 2023-11-03 B Purchase
3.4
Carter Thomas L Jr

CEO and Chairman

Executive Director
25,000 +0.9%
18.34
US$458,592 		25,000 +0.9% 18.34 US$458,592
2023-11-06 2023-11-02 B Purchase
3.4
Carter Thomas L Jr

CEO and Chairman

Executive Director
25,000 +0.9%
18.27
US$456,840 		25,000 +0.9% 18.27 US$456,840
2023-05-08 2023-05-05 B Purchase
3.4
Carter Thomas L Jr

CEO and Chairman

Executive Director
31,800 +1.2%
15.53
US$494,007 		31,800 +1.2% 15.53 US$494,007
2023-05-05 2023-05-04 S Sale
2.1
Putman Luke Stevens

SVP, GC, and Secretary

Officer
100,000 -17.1%
15.06
US$1,505,570 		100,000 -17.1% 15.06 US$1,505,570
2023-05-04 2023-05-04 PrS Proposed sale
2.1
LUKE PUTMAN

Officer

Officer
100,000
15.06
US$1,505,570 		100,000 15.06 US$1,505,570
2023-03-07 2023-03-06 B Purchase
2.7
DeWalch D Mark
Non-Executive Director
3,100 +30.0%
15.85
US$49,144 		3,100 +30.0% 15.85 US$49,144
2023-03-07 2023-03-06 B Purchase
2.7
DeWalch D Mark
Non-Executive Director
31,150 +13.6%
15.85
US$493,699 		31,150 +13.6% 15.85 US$493,699
2023-02-27 2023-02-27 B Purchase
3.4
Carter Thomas L Jr

CEO and Chairman

Executive Director
30,000 +1.2%
15.58
US$467,262 		30,000 +1.2% 15.58 US$467,262
2023-02-27 2023-02-24 B Purchase
3.4
Carter Thomas L Jr

CEO and Chairman

Executive Director
32,500 +1.3%
15.32
US$497,955 		32,500 +1.3% 15.32 US$497,955
2022-12-08 2022-12-07 B Purchase
3.4
Carter Thomas L Jr

CEO and Chairman

Executive Director
23,492 +1.0%
17.29
US$406,069 		23,492 +1.0% 17.29 US$406,069
2022-12-08 2022-12-06 B Purchase
3.4
Carter Thomas L Jr

CEO and Chairman

Executive Director
25,000 +1.1%
17.31
US$432,805 		25,000 +1.1% 17.31 US$432,805
2022-11-09 2022-11-04 S Sale
3.0
Smajstrla Dawn

VP, Chief Accounting Officer

Officer
5,300 -6.3%
19.41
US$102,866 		5,300 -6.3% 19.41 US$102,866
2022-11-07 2022-11-04 B Purchase
3.4
Carter Thomas L Jr

CEO and Chairman

Executive Director
25,000 +1.1%
19.49
US$487,198 		25,000 +1.1% 19.49 US$487,198
2022-11-07 2022-11-03 B Purchase
3.4
Carter Thomas L Jr

CEO and Chairman

Executive Director
25,000 +1.1%
19.26
US$481,545 		25,000 +1.1% 19.26 US$481,545
2022-09-15 2022-09-15 B Purchase
3.4
Carter Thomas L Jr

CEO and Chairman

Executive Director
24,631 +1.1%
16.30
US$401,586 		24,631 +1.1% 16.30 US$401,586
2022-09-14 2022-09-14 B Purchase
3.4
Carter Thomas L Jr

CEO and Chairman

Executive Director
25,000 +1.1%
16.39
US$409,785 		25,000 +1.1% 16.39 US$409,785
2022-09-14 2022-09-13 B Purchase
3.4
Carter Thomas L Jr

CEO and Chairman

Executive Director
25,000 +1.1%
16.20
US$404,955 		25,000 +1.1% 16.20 US$404,955
2022-09-14 2022-09-12 B Purchase
3.4
Carter Thomas L Jr

CEO and Chairman

Executive Director
25,000 +1.1%
16.27
US$406,812 		25,000 +1.1% 16.27 US$406,812
2022-08-08 2022-08-05 B Purchase
3.4
Carter Thomas L Jr

CEO and Chairman

Executive Director
30,000 +1.4%
14.88
US$446,250 		30,000 +1.4% 14.88 US$446,250
2022-08-08 2022-08-04 B Purchase
3.4
Carter Thomas L Jr

CEO and Chairman

Executive Director
20,000 +0.9%
14.90
US$297,922 		20,000 +0.9% 14.90 US$297,922
2022-03-03 2022-03-01 S Sale
2.0
Wood Jeffrey P.

President, CFO

Officer
40,000 -6.9%
12.24
US$489,712 		40,000 -6.9% 12.24 US$489,712
2022-02-25 2022-02-25 S Sale
2.1
Putman Luke Stevens

SVP, GC, and Secretary

Officer
60,000 -10.6%
11.82
US$709,362 		60,000 -10.6% 11.82 US$709,362
2021-05-21 2021-05-19 S Sale
2.1
Putman Luke Stevens

SVP, GC, and Secretary

Officer
50,000 -9.7%
9.82
US$491,000 		50,000 -9.7% 9.82 US$491,000
2021-05-10 2021-05-06 S Sale
2.0
Wood Jeffrey P.

President, CFO

Officer
50,000 -10.2%
10.51
US$525,500 		50,000 -10.2% 10.51 US$525,500
2020-03-03 2020-02-28 PlS Planned sale
3.0
Smajstrla Dawn

VP, Chief Accounting Officer

Officer
5,032 -8.7%
8.60
US$43,289 		5,032 -8.7% 8.60 US$43,289
2020-01-09 2020-01-09 PlS Planned sale
3.0
Smajstrla Dawn

VP, Chief Accounting Officer
4,707 -11.0%
13.25
US$62,366 		4,707 -11.0% 13.25 US$62,366
2020-01-09 2020-01-08 PlS Planned sale
2.1
Putman Luke Stevens

SVP, GC, and Secretary
30,000 -8.5%
12.99
US$389,697 		30,000 -8.5% 12.99 US$389,697
2019-06-18 2019-06-14 S Sale
2.9
Mathis William N.
2 -0.0%
15.85
US$32 		2 -0.0% 15.85 US$32
2019-06-12 2019-06-10 B Purchase
2.7
DeWalch D Mark
5,350 +15.1%
16.44
US$87,954 		5,350 +15.1% 16.44 US$87,954
2019-05-08 2019-05-08 PlS Planned sale
Dorn Holbrook F

SVP, Business Development
100 -0.0%
18.50
US$1,850 		100 -0.0% 18.50 US$1,850
2019-05-08 2019-05-07 PlS Planned sale
Dorn Holbrook F

SVP, Business Development
45 -0.0%
18.77
US$845 		45 -0.0% 18.77 US$845
2019-05-08 2019-05-06 PlS Planned sale
Dorn Holbrook F

SVP, Business Development
15,358 -2.1%
18.51
US$284,258 		15,358 -2.1% 18.51 US$284,258
2019-04-24 2019-04-22 PlS Planned sale
Dorn Holbrook F

SVP, Business Development
400 -0.1%
18.50
US$7,400 		400 -0.1% 18.50 US$7,400
2019-04-17 2019-04-17 PlS Planned sale
2.1
Putman Luke Stevens

SVP, GC, and Secretary
6,557 -2.5%
17.40
US$114,121 		6,557 -2.5% 17.40 US$114,121
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