$BSM

$14.80 -$0.10 (0.67%) Close

$BSM Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 212.7M shares outstanding

Who owns BSM?

By type of holder

Institutions 21.0% Insiders 0.0% Everyone else 79.0%

Concentration Top 10 holders own 13.9%

Morgan Stanley 4.2% · William Marsh Rice University 2.7%

Institutional ownership

21.0%

+0.6 pts vs last qtr

Institutional holders

195

+5 vs last qtr

Net shares bought

+1.3M

by institutions in Q2 2026

New / sold out

19 / 14

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Morgan Stanley +627.6K
BlackRock, Inc. NEW +451.0K

Biggest sellers in Q2 2026

Citigroup Inc −196.8K
Jump Financial, LLC −146.1K

Who is planning to sell?

Notices of proposed sale, last 12 months

$29.6M

6 notices from 4 people

Shares covered

2.2M

1.05% of the company

Arranged in advance

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Lacy Properties, LTD. Director $21.5M
Eagle Gathering System Director $6.58M

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

There are not yet two fiscal years of reported share counts for Black Stone Minerals, L.P..

How patient are the owners?

Institutional shares by how long they've been held

5+ years61% 3–5 years7% 1–3 years10% Under 1 year22%

Quarterly turnover

3.7%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting BSM on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
MS Morgan Stanley	8.9M	4.18%	+627.6K (+7.6%)	≤2021	0.0%
Shares held by quarter Peak holding8.9M (Q2'26) Change over 8 quarters+4.5M Share of the company4.180% Morgan Stanley's full portfolio →
WM William Marsh Rice University	5.7M	2.66%	Unchanged	≤2021	36.1%
Shares held by quarter Peak holding5.7M (Q3'24) Change over 8 quarters0 Share of the company2.660% William Marsh Rice University's full portfolio →

Morgan Stanley

8.9M

% of company

4.18%

Change vs last qtr

+627.6K (+7.6%)

Held since

≤2021

William Marsh Rice University

5.7M

% of company

2.66%

Change vs last qtr

Unchanged

Held since

≤2021

28 more super investors behind a free account

See every manager holding Black Stone Minerals, L.P., how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting BSM on Form N-PORT; together they hold 2.6% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
FD Fidelity Dividend Growth Fund Fidelity Securities Fund	$57.6M	3.9M	1.81%	0.48%	July 31, 2026
FC Fidelity Capital Appreciation Fund Fidelity Capital Trust	$9.53M	637.4K	0.30%	0.12%	July 31, 2026

Fidelity Dividend Growth Fund

Fidelity Securities Fund

Position value

$57.6M

% of company

1.81%

% of the fund

0.48%

As of

July 31, 2026

Fidelity Capital Appreciation Fund

Fidelity Capital Trust

Position value

$9.53M

% of company

0.30%

% of the fund

0.12%

As of

July 31, 2026

15 more funds behind a free account

See every fund holding Black Stone Minerals, L.P. and how much of the fund the position is.

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