Black Stone Minerals, L.P. (BSM) Insider Trading

Over the last 3 months, BSM insiders made 0 open-market buys and 2 sales, a net sale of -$28.1M (SEC Form 4). Over the last 6 months, 113 institutions increased and 99 reduced their position (13F).

Insider Activity

Sentiment
0/100
Buys (3m)
0
Sells (3m)
2
Net (3m)
-$28.1M
Insider trades by month Buys Sells
Sep
Mar
Apr
May
Jun
Aug
Context3-month price +8.4%Institutions accumulating (13F)
DateInsiderTypeSharesPrice
Aug 10, 2026Whitehead JamesdirectorSell1,628,762$13.21
Aug 10, 2026Whitehead JamesdirectorSell498,343$13.21
Jul 2, 2026Kyle Jerry V. Jr.directorGrant1,342$13.97
Jul 2, 2026Hamman Anne LenoirdirectorGrant1,342$13.97
Jul 2, 2026Randall William E.directorGrant1,610$13.97
Jul 2, 2026DeWalch D MarkdirectorGrant1,342$13.97
Jul 2, 2026Stuart Alexander D.directorGrant1,700$13.97
Jun 2, 2026DeWalch D MarkdirectorBuy36,363$13.48
May 28, 2026DeWalch D MarkdirectorBuy37,650$13.21
May 14, 2026Carter Thomas L Jrdirector, officer: Executive ChairmanBuy1,120$13.50
May 13, 2026Longmaid Ashley JdirectorSell11,128$13.45
May 12, 2026Carter Thomas L Jrdirector, officer: Executive ChairmanBuy23,604$13.32
May 12, 2026Carter Thomas L Jrdirector, officer: Executive ChairmanBuy19,154$13.48
May 12, 2026Carter Thomas L Jrdirector, officer: Executive ChairmanBuy25,000$13.47
May 6, 2026Putman Luke Stevensofficer: SVP, General Counsel, and SecSell29,386$13.75
Apr 7, 2026Putman Luke Stevensofficer: SVP, General Counsel, and SecSell29,386$14.45
Apr 6, 2026DeWalch D MarkdirectorGrant1,240$15.12
Apr 6, 2026Randall William E.directorGrant1,488$15.12
Apr 6, 2026Stuart Alexander D.directorGrant1,570$15.12
Apr 6, 2026Kyle Jerry V. Jr.directorGrant1,240$15.12
Apr 6, 2026Hamman Anne LenoirdirectorGrant473$15.12
Mar 12, 2026Hamman Anne LenoirdirectorGrant6,613
Mar 6, 2026Putman Luke Stevensofficer: SVP, General Counsel, and SecSell30,276$15.25
Feb 26, 2026Bonner Chrisofficer: SVP, CFO, and TreasurerTax430$15.23
Feb 26, 2026Carter Fowlerdirector, officer: Co-CEO and PresidentGrant1,330
Feb 26, 2026Putman Luke Stevensofficer: SVP, General Counsel, and SecGrant68,853
Feb 26, 2026DeWalch Taylordirector, officer: Co-CEO and PresidentTax478$15.23
Feb 26, 2026Carter Fowlerdirector, officer: Co-CEO and PresidentTax325$15.23
Feb 26, 2026DeWalch Taylordirector, officer: Co-CEO and PresidentGrant1,958
Feb 26, 2026Carter Thomas L Jrdirector, officer: Executive ChairmanTax53,641$15.23

Source: BSM SEC Form 4 filings, latest Aug 10, 2026. For informational purposes only — not investment advice.

Institutional activity (13F)

How institutions changed their BSM positions over the last 6 months (SEC Form 13F).

Increased
113
New positions
38
Reduced
99
Sold out
10
Largest moves
InstitutionActionSharesFiled
MORGAN STANLEYIncreased8.9MAug 13, 2026
MORGAN STANLEYReduced8.3MMay 15, 2026
WILLIAM MARSH RICE UNIVERSITYUnchanged5.7MMay 11, 2026
William Marsh Rice UniversityUnchanged5.7MJul 23, 2026
FMR LLCIncreased4.5MMay 15, 2026
FMR LLCReduced4.5MAug 13, 2026
BANK OF AMERICA CORP /DE/Reduced2.1MMay 18, 2026
BANK OF AMERICA CORP /DE/Reduced2.1MAug 14, 2026
PENN DAVIS MCFARLAND INCReduced2.0MApr 21, 2026
PENN DAVIS MCFARLAND INCReduced2.0MJul 15, 2026
INVESTMENT MANAGEMENT ASSOCIATES INC /ADVReduced1.9MMay 7, 2026
INVESTMENT MANAGEMENT ASSOCIATES INC /ADVReduced1.8MAug 3, 2026
NATIXISUnchanged1.6MMay 14, 2026
NATIXISUnchanged1.6MAug 13, 2026
AMERIPRISE FINANCIAL INCNew Position1.2MJul 17, 2026

Source: SEC Form 13F filings. For informational purposes only — not investment advice.