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Black Stone Minerals
BSM · listed on the New York Stock Exchange · worth $3.15 billion
$14.80
+0.34% today
Three insider buys in the last year, $1.48 million in all. None in the last two weeks.
Green dot = an insider bought red = sold◆ = company newsA number = that many on nearby days · click a mark to see who, or read the filing
The shares anyone can buy and sell, leaving out those held by insiders and big long-term owners.
164.3M shares
77% of all shares
Shares borrowed and sold by investors who expect the price to drop.
Company insiders
In the last year, one insider bought Black Stone Minerals stock and one insider sold. None of the 2 sales is marked on its filing as planned in advance.
How each buyer's earlier purchases went: the stock about six months later, beside the S&P 500 over the same days. Purchases planned in advance are left out. Past results, not a forecast.
Director
D. Mark DeWalch
Bought $497.3K on May 28 — 37,650 shares at $13.21, 8.7% of what they now own.
No earlier purchases to measure
Planned sales
Form 144 notices filed for Black Stone Minerals in recent months, beside the Form 4 sales reported after each. A notice says a person intends to sell; it is not a sale.
Director James Whitehead filed to sell 1,628,762 shares on 6 Aug; no sale reported yetNotice on SEC.gov
Director James Whitehead filed to sell 498,343 shares on 6 Aug; sold 2,127,105 by 6 Aug, more than the notice namedNotice on SEC.gov
Big investors
People and funds that reported owning 5% or more of Black Stone Minerals, newest first.
Filed by someone who owns 5% or more and does not plan to influence the company.Morgan Stanley5.2%Aug 20
Filed by someone who owns 5% or more and does not plan to influence the company. · updateCarlyle Group0.0%May 13, 2025
Filed by someone who owns 5% or more and does not plan to influence the company. · updateCarlyle GroupFeb 11, 2022
Filed by someone who owns 5% or more and does not plan to influence the company. · updateCI InvestmentsFeb 13, 2020
Filed by someone who owns 5% or more and does not plan to influence the company. · updateCarlyle Group Management L.L.C.Feb 13, 2020
All reports
Every insider trade and SEC report we hold for Black Stone Minerals.
Newest first
ReportedTradeInsiderOf their holdingShares @ priceValue
Aug 10SoldJames WhiteheadAug 10 · Traded Aug 6 · Directorvia a trust or family1,628,762 @ $13.21$21.52M
Aug 10SoldJames WhiteheadAug 10 · Traded Aug 6 · Directorvia a trust or family498,343 @ $13.21$6.58M
Jun 2BoughtD. Mark DeWalchJun 2 · Traded Jun 1 · Director+5.8%via a trust or family36,363 @ $13.62$495.3K
Jun 2BoughtD. Mark DeWalchJun 2 · Traded May 29 · Director+6.1%via a trust or family36,363 @ $13.48$490K
12 more with Pro →Analysts, earnings and news
Profit vs what was expected
3 of 4 quarters above
Q2 '26$0.30 a share+$0.05
Q1 '26$0.28 a share+$0.05
Q4 '25$0.22 a share−$0.05
Q3 '25$0.30 a share+$0.01