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Black Stone Minerals, L.P.

BSM Net selling
CIK 0001621434 #1715 in the set updated 17 Sep 2026
Bought (120 mo)
$18.81M
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$41.60M
$865.58K on a plan · $0.00 straight out of an exercise
Sold at will
$40.73M
56 of 58 sales
Net
−$22.79M
−$21.93M against sales at will

By person

26 insiders · 126 transactions
Insider
Role
Bought
Sold
Net
Holding
Worth
Change
Whitehead James
Director
—
$28.10M (2)
−$28.10M
697,923
$9.22M
−75.0%
Carter Thomas L Jr
Executive Chairman
$14.52M (50)
—
+$14.52M
15,457,747
$204.20M
+178.9%
Putman Luke Stevens
SVP, General Counsel, and Sec
—
$7.37M (22)
−$7.37M
702,645
$9.28M
+210.3%
DeWalch D Mark
Director
$3.45M (11)
—
+$3.45M
1,126,784
$14.88M
+71.7%
Morris Brock
SVP, Engineering and Geology
—
$3.02M (13)
−$3.02M
440,927
$5.82M
+70.5%
Wood Jeffrey P.
President, CFO
—
$1.36M (6)
−$1.36M
589,109
$7.78M
—
Clark Carrie Pearson
SVP, Chief Commercial Officer
—
$775.30K (2)
−$775.30K
165,857
$2.19M
—
Stuart Alexander D.
Director
$635.09K (3)
—
+$635.09K
11,260,713
$148.75M
+87.1%
Smajstrla Dawn
VP, Chief Accounting Officer
—
$533.11K (7)
−$533.11K
128,456
$1.70M
+789.3%
Dorn Holbrook F
SVP, Business Development
—
$294.35K (4)
−$294.35K
985,001
$13.01M
+134.7%
Mathis William N.
Director
$191.39K (3)
$31.70 (1)
+$191.36K
4,283,300
$56.58M
+135.8%
Longmaid Ashley J
Director
—
$149.70K (1)
−$149.70K
137,335
$1.81M
+16.5%
Haeflinger Ricky J.
Director
$17.04K (1)
—
+$17.04K
10,000
$132.10K
+11.1%
Longmaid John H.
Director
—
—
—
3,782,324
$49.96M
+137.3%
Kyle Jerry V. Jr.
Director
—
—
—
934,424
$12.34M
+177.6%
BARDEL WILLIAM G
Director
—
—
—
399,297
$5.27M
+107.7%
Linn Michael C
Director
—
—
—
208,150
$2.75M
+351.8%
Randall William E.
Director
—
—
—
193,384
$2.55M
+672.0%
Thacker Allison K.
Director
—
—
—
147,656
$1.95M
+187.7%
BARTH CARIN MARCY
Director
—
—
—
142,447
$1.88M
+707.9%
DeWalch Taylor
Co-CEO and President
—
—
—
141,369
$1.87M
+887.9%
Carter Fowler
Co-CEO and President
—
—
—
125,379
$1.66M
+175.7%
Kiefer Evan Montgomery
SVP, CFO & Treasurer
—
—
—
65,383
$863.71K
+93.4%
Bonner Chris
SVP, CFO, and Treasurer
—
—
—
50,678
$669.46K
+1,970%
Hamman Anne Lenoir
Director
—
—
—
8,428
$111.33K
—
Phillips Erin Leah
Controller (PAO)
—
—
—
3,911
$51.66K
+84.5%

No percentages here. Black Stone Minerals, L.P. reports its share count only per share class, which the XBRL frames API does not carry.

Individual transactions

68
Insider
Date
Role
Action
Shares
Price
Amount
DeWalch D Mark
1 Jun 2026
Director
Buy indirect
36,363
$13.62
$495.33K
DeWalch D Mark
29 May 2026
Director
Buy indirect
36,363
$13.48
$490.03K
DeWalch D Mark
28 May 2026
Director
Buy
37,650
$13.21
$497.34K
Carter Thomas L Jr
13 May 2026
Executive Chairman
Buy
1,120
$13.50
$15.12K
Carter Thomas L Jr
12 May 2026
Executive Chairman
Buy
19,154
$13.48
$258.11K
Carter Thomas L Jr
11 May 2026
Executive Chairman
Buy
25,000
$13.47
$336.86K
Carter Thomas L Jr
8 May 2026
Executive Chairman
Buy
23,604
$13.32
$314.37K
Carter Thomas L Jr
12 Sep 2025
CEO, President, and Chairman
Buy
14,000
$12.59
$176.20K
Carter Thomas L Jr
11 Sep 2025
CEO, President, and Chairman
Buy
1,300
$12.39
$16.11K
Carter Thomas L Jr
10 Sep 2025
CEO, President, and Chairman
Buy
10,536
$12.32
$129.79K
Carter Thomas L Jr
9 Sep 2025
CEO, President, and Chairman
Buy
1,307
$12.07
$15.77K
Carter Thomas L Jr
8 Sep 2025
CEO, President, and Chairman
Buy
13,527
$11.90
$160.94K
Carter Thomas L Jr
20 Aug 2025
CEO, President, and Chairman
Buy
21,000
$12.03
$252.62K
Carter Thomas L Jr
19 Aug 2025
CEO, President, and Chairman
Buy
20,000
$11.97
$239.33K
Carter Thomas L Jr
12 Aug 2025
CEO, President, and Chairman
Buy
9,200
$12.36
$113.72K
Carter Thomas L Jr
11 Aug 2025
CEO, President, and Chairman
Buy
25,000
$12.10
$302.51K
Carter Thomas L Jr
8 Aug 2025
CEO, President, and Chairman
Buy
27,500
$12.20
$335.55K
Carter Thomas L Jr
7 Aug 2025
CEO, President, and Chairman
Buy
19,710
$12.24
$241.30K
Carter Thomas L Jr
21 May 2025
CEO, President, and Chairman
Buy
14,500
$13.52
$196.07K
Carter Thomas L Jr
6 Sep 2024
CEO, President, and Chairman
Buy
100,000
$14.12
$1.41M
DeWalch D Mark
15 Aug 2024
Director
Buy
34,200
$14.62
$500.00K
DeWalch D Mark
26 Feb 2024
Director
Buy
3,250
$15.47
$50.28K
Carter Thomas L Jr
8 Dec 2023
CEO, President, and Chairman
Buy
2,075
$16.20
$33.62K
Carter Thomas L Jr
7 Dec 2023
CEO, President, and Chairman
Buy
29,000
$15.99
$463.61K
DeWalch D Mark
17 Nov 2023
Director
Buy
22,297
$17.49
$390.00K
DeWalch D Mark
16 Nov 2023
Director
Buy
21,703
$17.14
$371.95K
Carter Thomas L Jr
8 Nov 2023
CEO and Chairman
Buy
9,000
$17.11
$153.99K
Carter Thomas L Jr
7 Nov 2023
CEO and Chairman
Buy
24,577
$17.96
$441.42K
Carter Thomas L Jr
6 Nov 2023
CEO and Chairman
Buy
25,000
$18.21
$455.18K
Carter Thomas L Jr
3 Nov 2023
CEO and Chairman
Buy
25,000
$18.34
$458.59K
Carter Thomas L Jr
2 Nov 2023
CEO and Chairman
Buy
25,000
$18.27
$456.84K
Carter Thomas L Jr
5 May 2023
CEO and Chairman
Buy
31,800
$15.53
$494.01K
DeWalch D Mark
6 Mar 2023
Director
Buy indirect
3,100
$15.85
$49.14K
DeWalch D Mark
6 Mar 2023
Director
Buy
31,150
$15.85
$493.70K
Carter Thomas L Jr
27 Feb 2023
CEO and Chairman
Buy
30,000
$15.58
$467.26K
Carter Thomas L Jr
24 Feb 2023
CEO and Chairman
Buy
32,500
$15.32
$497.96K
Carter Thomas L Jr
7 Dec 2022
CEO and Chairman
Buy
23,492
$17.29
$406.07K
Carter Thomas L Jr
6 Dec 2022
CEO and Chairman
Buy
25,000
$17.31
$432.81K
Carter Thomas L Jr
4 Nov 2022
CEO and Chairman
Buy
25,000
$19.49
$487.20K
Carter Thomas L Jr
3 Nov 2022
CEO and Chairman
Buy
25,000
$19.26
$481.55K
Carter Thomas L Jr
15 Sep 2022
CEO and Chairman
Buy
24,631
$16.30
$401.59K
Carter Thomas L Jr
14 Sep 2022
CEO and Chairman
Buy
25,000
$16.39
$409.79K
Carter Thomas L Jr
13 Sep 2022
CEO and Chairman
Buy
25,000
$16.20
$404.96K
Carter Thomas L Jr
12 Sep 2022
CEO and Chairman
Buy
25,000
$16.27
$406.81K
Carter Thomas L Jr
5 Aug 2022
CEO and Chairman
Buy
30,000
$14.88
$446.25K
Carter Thomas L Jr
4 Aug 2022
CEO and Chairman
Buy
20,000
$14.90
$297.92K
DeWalch D Mark
10 Jun 2019
Director
Buy indirect
5,350
$16.44
$87.95K
Carter Thomas L Jr
6 Dec 2018
President, CEO and Chairman
Buy
15,300
$16.24
$248.41K
DeWalch D Mark
16 Nov 2018
Director
Buy indirect
1,175
$17.06
$20.04K
Mathis William N.
13 Nov 2018
Director
Buy indirect
4,213
$16.62
$70.03K
Mathis William N.
12 Nov 2018
Director
Buy indirect
6,887
$16.88
$116.27K
Mathis William N.
9 Nov 2018
Director
Buy indirect
300
$16.95
$5.09K
Stuart Alexander D.
6 Mar 2018
Director
Buy
15,000
$17.43
$261.49K
Carter Thomas L Jr
1 Mar 2018
President, CEO and Chairman
Buy
14,240
$17.26
$245.76K
Stuart Alexander D.
9 Jun 2017
Director
Buy
18,650
$16.00
$298.33K
Carter Thomas L Jr
9 Jun 2017
President, CEO and Chairman
Buy
7,750
$15.86
$122.94K
Carter Thomas L Jr
12 May 2017
President, CEO and Chairman
Buy
5,600
$16.91
$94.70K
Carter Thomas L Jr
11 May 2017
President, CEO and Chairman
Buy
12,000
$16.96
$203.55K
Haeflinger Ricky J.
7 Mar 2017
Director
Buy
1,000
$17.04
$17.04K
Carter Thomas L Jr
3 Mar 2017
President, CEO and Chairman
Buy
8,400
$17.53
$147.23K
Stuart Alexander D.
2 Mar 2017
Director
Buy
4,300
$17.51
$75.27K
Carter Thomas L Jr
2 Mar 2017
President, CEO and Chairman
Buy
5,600
$17.49
$97.97K
Carter Thomas L Jr
28 Nov 2016
President, CEO and Chairman
Buy
13,000
$18.93
$246.08K
Carter Thomas L Jr
17 Nov 2016
President, CEO and Chairman
Buy
3,000
$18.21
$54.63K
Carter Thomas L Jr
16 Nov 2016
President, CEO and Chairman
Buy
8,000
$17.98
$143.81K
Carter Thomas L Jr
15 Nov 2016
President, CEO and Chairman
Buy
6,000
$17.89
$107.34K
Carter Thomas L Jr
14 Nov 2016
President, CEO and Chairman
Buy
5,400
$17.62
$95.17K
Carter Thomas L Jr
10 Nov 2016
President, CEO and Chairman
Buy
5,400
$18.04
$97.39K
Show all 126 transactions →

What was left out

Form 4 filings counted 532
Amendments (4/A) skipped 4
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 2
Sales straight out of an exercise 0
Sales at will 56
Transactions with no price 0
Shares from compensation/vesting 31,883,341
Sales filed before the plan box existed 49
History held since 11 Oct 2016