Security key
09225M101
Black Stone Minerals, L.P. - Common Units Representing Limited Partner Interests (BSM)
CUSIP: 09225M101
Q1 2026 13F Holders as of 31 Mar 2026
- Security type / class
- Equity / Common Units Representing Limited Partner Interests
- Total 13F shares
- 43,531,224
- Total 13F value
- $657,829,670
- Share change
- +3,561,190
- Put/Call ratio
- 30%
- SEC-reported price per share
- $15.12
- Number of holders
- 192
- Value change
- +$55,438,509
- Number of buys
- 70
- Number of sells
- 59
- Shares outstanding
- 211,971,231
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2026
Institutions
192
Top holders
10
BSM full security history
Ownership snapshot
Full 13F holder table
Black Stone Minerals, L.P. SEC filings
Black Stone Minerals, L.P. company facts
Broader feeds
Ownership snapshot
Top reported holders of BSM - Black Stone Minerals, L.P. - Common Units Representing Limited Partner Interests (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 N. Mathis
Disclosed value leader
MORGAN STANLEY
Comparable rows
15/15
Latest evidence
24 Feb 2026
3/4/5
13F
Lead comparable stake: 1.1%
Showing 1-6 of 15 holder rows.
Quick read
William N. Mathis leads the comparable SEC ownership view at 1.1%.
15 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 N. Mathis's linked filing trail.
Comparable ownership
Top 5
William N. Mathis
1.1%
Michael C. Linn
0.1%
Carrie P. Clark
0.08%
Carin M. Barth
0.07%
Taylor DeWalch
0.07%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| William N. Mathis |
3/4/5
Director
|
1.1%
|
$29,845,877
2,271,376 shares
|
— | 03 Oct 2025 |
| Michael C. Linn |
3/4/5
Director
|
0.1%
|
$2,766,313
208,150 shares
|
— | 13 Jan 2026 |
| Carrie P. Clark |
3/4/5
SVP, Chief Commercial Officer
|
0.08%
|
$2,248,904
165,857 shares
|
— | 29 May 2025 |
| Carin M. Barth |
3/4/5
Director
|
0.07%
|
$1,893,120
142,447 shares
|
— | 13 Jan 2026 |
| Taylor DeWalch |
3/4/5
Co-CEO and President, Director
|
0.07%
|
$2,153,049
141,369 shares
|
— | 24 Feb 2026 |
| Fowler Carter |
3/4/5
Co-CEO and President, Director
|
0.06%
|
$1,909,522
125,379 shares
|
— | 24 Feb 2026 |
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 Q1 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
192
Shares
43,531,224
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 Q1 2026 vs Q1 2026 Across Filers
Q1 2026 holders
192
Q1 2026 holders
192
Holder diff
0
| Investor | Q1 2026 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q1 2026 value | Q1 2026 value | Value change | Value Chg % |
|---|