Security key
09225M101
Black Stone Minerals, L.P. - Common Units (BSM)
CUSIP: 09225M101
Q4 2025 13F Holders as of 31 Dec 2025
- Security type / class
- Equity / Common Units
- Total 13F shares
- 40,587,566
- Total 13F value
- $541,001,626
- Share change
- +4,495,512
- Put/Call ratio
- 50%
- SEC-reported price per share
- $13.29
- Number of holders
- 192
- Value change
- +$59,835,371
- Number of buys
- 76
- Number of sells
- 68
Open additional details 1 more signal available
Report period
Q4 2025
Institutions
192
Top holders
10
BSM full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q1 2026
Previous quarter: Q3 2025
Black Stone Minerals, L.P. SEC filings
Black Stone Minerals, L.P. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 09225M101
Recent filing periods:
Ownership snapshot
Top reported holders of BSM - Black Stone Minerals, L.P. - Common Units (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
William Marsh Rice Univer...
Disclosed value leader
William Marsh Rice Univer...
Comparable rows
0/15
Latest evidence
03 Oct 2025
13F
3/4/5
Highest disclosed value: $74,418,075
15 rows are not safely comparable across share classes.
Showing 1-6 of 15 holder rows.
Quick read
William Marsh Rice University has the largest disclosed position value at $74.42M.
0 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens William Marsh Rice University's linked filing trail.
Disclosed position value
Top 5
William Marsh Rice University
$74.42M
John H. Longmaid
$61.33M
MORGAN STANLEY
$59.46M
BANK OF AMERICA CORP /DE/
$34.17M
William N. Mathis
$29.85M
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| William Marsh Rice University |
13F
Company
|
—
class O/S missing
|
$74,418,075
5,663,476 shares
|
— | 30 Sep 2025 |
| John H. Longmaid |
3/4/5
Director
|
—
class O/S missing
|
$61,331,624
3,821,285 shares
|
— | 11 Jan 2024 |
| MORGAN STANLEY |
13F
Company
|
—
class O/S missing
|
$59,456,529
4,524,850 shares
|
— | 30 Sep 2025 |
| BANK OF AMERICA CORP /DE/ |
13F
Company
|
—
class O/S missing
|
$34,166,391
2,600,182 shares
|
— | 30 Sep 2025 |
| William N. Mathis |
3/4/5
Director
|
—
class O/S missing
|
$29,845,877
2,271,376 shares
|
— | 03 Oct 2025 |
| INVESTMENT MANAGEMENT ASSOCIATES INC /ADV |
13F
Company
|
—
class O/S missing
|
$25,422,475
1,934,739 shares
|
— | 30 Sep 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q4 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
192
Shares
40,587,566
Rows available
192
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q4 2025 vs Q3 2025 Across Filers
Q3 2025 holders
192
Q4 2025 holders
192
Holder diff
0
| Investor | Q3 2025 Shares | Q4 2025 Shares | Share Diff | Share Chg % | Q3 2025 value | Q4 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend