Vault-13

BLACK STONE MINERALS L P BSM

COM UNIT · MLP · CUSIP 09225M101

193 institutional holders -1 vs Q3 2025
40,814,93440.8m shares reported held*
$528.4mreported value*
16 new 60 added 49 reduced 22 sold out net bought ≈ $57.1m (+5.4m shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Implied quarter-end price ≈ $12.95. Options: 7 managers hold calls ($7.2m notional), 5 hold puts ($3.2m).

Trends to Q4 2025

Institutional holders

Managers reporting a position, each quarter

0100200Q3 22: 150Q4 22: 173Q1 23: 171Q2 23: 173Q3 23: 181Q4 23: 197Q1 24: 185Q2 24: 188Q3 24: 179Q4 24: 182Q1 25: 178Q2 25: 185Q3 25: 194Q4 25: 193193Q3 22Q2 23Q1 24Q4 24Q4 25
Numbers
QuarterHolders
Q3 2022150
Q4 2022173
Q1 2023171
Q2 2023173
Q3 2023181
Q4 2023197
Q1 2024185
Q2 2024188
Q3 2024179
Q4 2024182
Q1 2025178
Q2 2025185
Q3 2025194
Q4 2025193

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
1000100Q1 24: 70 bought or addedQ1 24: 83 cut or sold outQ2 24: 85 bought or addedQ2 24: 56 cut or sold outQ2 24Q3 24: 71 bought or addedQ3 24: 72 cut or sold outQ4 24: 75 bought or addedQ4 24: 54 cut or sold outQ4 24Q1 25: 76 bought or addedQ1 25: 61 cut or sold outQ2 25: 75 bought or addedQ2 25: 53 cut or sold outQ2 25Q3 25: 77 bought or addedQ3 25: 68 cut or sold outQ4 25: 76 bought or addedQ4 25: 71 cut or sold outQ4 25
Numbers
QuarterBought or addedCut or sold out
Q1 20247083
Q2 20248556
Q3 20247172
Q4 20247554
Q1 20257661
Q2 20257553
Q3 20257768
Q4 20257671

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$2m$4m$6m$8mQ1 25 calls: $3.0mQ1 25 puts: $2.2mQ1 25P/C 0.72Q2 25 calls: $2.9mQ2 25 puts: $2.0mQ2 25P/C 0.68Q3 25 calls: $2.1mQ3 25 puts: $3.8mQ3 25P/C 1.83Q4 25 calls: $7.2mQ4 25 puts: $3.2mQ4 25P/C 0.45
Numbers
QuarterCallsPutsP/C
Q1 2025$3.0m$2.2m0.72
Q2 2025$2.9m$2.0m0.68
Q3 2025$2.1m$3.8m1.83
Q4 2025$7.2m$3.2m0.45

Biggest buyers

MORGAN STANLEY Added +2,582,823+2.6m
FMR LLC New +1,881,122+1.9m
NORTHWESTERN UNIVERSITY New +1,086,025+1.1m
CITIGROUP INC Added +407,345+407.3k
CHILTON CAPITAL MANAGEMENT LLC Added +337,263+337.3k
Corient Private Wealth LP Added +328,410+328.4k
Forum Financial Management, LP New +300,000+300.0k
ING GROEP NV Added +218,900+218.9k
WELLS FARGO & COMPANY/MN Added +161,198+161.2k
HRT FINANCIAL LP Added +131,476+131.5k

Biggest sellers

Concorde Financial Corp Sold out -656,670-656.7k
BANK OF AMERICA CORP /DE/ Reduced -424,745-424.7k
REGIONS FINANCIAL CORP Reduced -390,499-390.5k
Clarus Group, Inc. Sold out -333,996-334.0k
FIDUCIENT ADVISORS LLC Reduced -234,641-234.6k
KEMPNER CAPITAL MANAGEMENT INC. Reduced -142,833-142.8k
FIRST TRUST ADVISORS LP Reduced -131,649-131.6k
Rangeley Capital, LLC Sold out -78,173-78.2k
SUSQUEHANNA INTERNATIONAL GROUP, LLP Sold out -72,301-72.3k
DRW Securities, LLC Sold out -55,010-55.0k

Biggest calls

PEAK6 LLC New $5.3m400.0k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $1.1m81.0k shares
IMC-Chicago, LLC New $280.4k21.1k shares
JANE STREET GROUP, LLC Reduced $190.0k14.3k shares
CITADEL ADVISORS LLC Reduced $170.1k12.8k shares
SIMPLEX TRADING, LLC Reduced $99.7k7.5k shares
GROUP ONE TRADING LLC Reduced $46.5k3.5k shares

Biggest puts

PEAK6 LLC New $2.1m157.2k shares
CITADEL ADVISORS LLC Reduced $805.4k60.6k shares
JANE STREET GROUP, LLC Reduced $207.3k15.6k shares
SIMPLEX TRADING, LLC Reduced $79.7k6.0k shares
GROUP ONE TRADING LLC Reduced $38.5k2.9k shares

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
MORGAN STANLEY 13G · passive investor new · filed 2026-08-20 5.2% new 11.0m≈ $154.0m 2026-08-20

Insider purchases and sales in Q4 2025

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

Officers and directors buying vs selling

Number of people, by quarter (10% owners not included)

BuyingSelling
202Q1 24: 1 buyingQ1 24: 0 sellingQ2 24: 0 buyingQ2 24: 0 sellingQ2 24Q3 24: 2 buyingQ3 24: 1 sellingQ4 24: 0 buyingQ4 24: 0 sellingQ4 24Q1 25: 0 buyingQ1 25: 0 sellingQ2 25: 1 buyingQ2 25: 1 sellingQ2 25Q3 25: 1 buyingQ3 25: 0 sellingQ4 25: 0 buyingQ4 25: 0 sellingQ4 25
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q1 20241$50.3k0——
Q2 20240—0——
Q3 20242$1.9m1$275.0k—
Q4 20240—0——
Q1 20250—0——
Q2 20251$196.0k1$500.4k—
Q3 20251$2.0m0——
Q4 20250—0——

None reported in Q4 2025.

Holders, Q4 2025

#ManagerLocationShares Value% of their portfolioChangeShares change
1 MORGAN STANLEY 0.01% of their portfolio NEW YORK, NY 7,107,6737.1m $94.5m $94.5m 0.01% Added +2.6m +2,582,823
2 William Marsh Rice University 36.99% of their portfolio HOUSTON, TX 5,663,4765.7m $75.3m $75.3m 36.99% Unchanged
3 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 2,175,4372.2m $28.9m $28.9m 0.00% Reduced -424.7k -424,745
4 PENN DAVIS MCFARLAND INC 2.50% of their portfolio DALLAS, TX 1,967,4672.0m $26.1m $26.1m 2.50% Added +48.7k +48,677
5 INVESTMENT MANAGEMENT ASSOCIATES INC /ADV 7.07% of their portfolio GREENWOOD VILLAGE, CO 1,902,4211.9m $25.3m $25.3m 7.07% Reduced -32.3k -32,318
6 FMR LLC 0.00% of their portfolio BOSTON, MA 1,881,1221.9m $25.0m $25.0m 0.00% New
7 NATIXIS 0.08% of their portfolio PARIS, I0 1,579,9001.6m $21.0m $21.0m 0.08% Added +122.9k +122,900
8 NORTHWESTERN UNIVERSITY 14.83% of their portfolio EVANSTON, IL 1,086,0251.1m $15.7k $15.7k 14.83% New
9 BROWN ADVISORY INC 0.02% of their portfolio BALTIMORE, MD 878,003878.0k $11.7m $11.7m 0.02% Reduced -8.9k -8,931
10 Mudita Advisors LLP 2.19% of their portfolio London, X0 760,877760.9k $10.1m $10.1m 2.19% Unchanged
11 CITIGROUP INC 0.01% of their portfolio NEW YORK, NY 754,545754.5k $10.0m $10.0m 0.01% Added +407.3k +407,345
12 ING GROEP NV 0.06% of their portfolio AMSTERDAM, P7 728,600728.6k $9.7m $9.7m 0.06% Added +218.9k +218,900
13 Saber Capital Managment, LLC 7.16% of their portfolio FUQUAY VARINA, NC 631,222631.2k $8.4m $8.4m 7.16% First filing
14 UBS Group AG 0.00% of their portfolio ZURICH, V8 613,105613.1k $8.1m $8.1m 0.00% Added +52.4k +52,417
15 HighTower Advisors, LLC 0.01% of their portfolio CHICAGO, IL 605,067605.1k $8.0m $8.0m 0.01% Reduced -3.6k -3,582
16 Cresset Asset Management, LLC 0.03% of their portfolio Chicago, IL 598,662598.7k $8.0m $8.0m 0.03% Added +1.8k +1,809
17 EPACRIA CAPITAL PARTNERS, LLC 6.11% of their portfolio BOULDER, CO 580,716580.7k $7.7m $7.7m 6.11% Unchanged
18 Fayez Sarofim & Co 0.02% of their portfolio Houston, TX 539,351539.4k $7.2m $7.2m 0.02% Unchanged
19 KEMPNER CAPITAL MANAGEMENT INC. 5.85% of their portfolio GALVESTON, TX 439,295439.3k $6.2m $6.2m 5.85% Reduced -142.8k -142,833
20 Corient Private Wealth LP 0.00% of their portfolio MIAMI, FL 414,734414.7k $5.5m $5.5m 0.00% Added +328.4k +328,410
21 Cambridge Investment Research Advisors, Inc. 0.01% of their portfolio FAIRFIELD, IA 406,433406.4k $5.4m $5.4m 0.01% Added +3.9k +3,879
22 REGIONS FINANCIAL CORP 0.03% of their portfolio BIRMINGHAM, AL 390,499390.5k $5.2m $5.2m 0.03% Reduced -390.5k -390,499
23 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 361,303361.3k $4.8m $4.8m 0.00% Added +161.2k +161,198
24 Lummis Asset Management, LP 2.77% of their portfolio FORT WORTH, TX 343,043343.0k $4.5m $4.5m 2.77% Added +2.3k +2,280
25 CHILTON CAPITAL MANAGEMENT LLC 0.15% of their portfolio HOUSTON, TX 337,472337.5k $4.5m $4.5m 0.15% Added +337.3k +337,263
26 Forum Financial Management, LP 0.05% of their portfolio LOMBARD, IL 300,000300.0k $4.0m $4.0m 0.05% New
27 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 298,164298.2k $4.0m $4.0m 0.00% Unchanged
28 FIRST TRUST ADVISORS LP 0.00% of their portfolio Wheaton, IL 284,180284.2k $3.8m $3.8m 0.00% Reduced -131.6k -131,649
29 FIDUCIENT ADVISORS LLC 0.40% of their portfolio Chicago, IL 242,548242.5k $3.2m $3.2m 0.40% Reduced -234.6k -234,641
30 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 219,456219.5k $2.9m $2.9m 0.00% Added +31.0k +31,024
31 HRT FINANCIAL LP 0.01% of their portfolio NEW YORK, NY 201,087201.1k $2.7m $2.7m 0.01% Added +131.5k +131,476
32 GraniteShares Advisors LLC 1.61% of their portfolio NEW YORK, NY 199,774199.8k $2.7m $2.7m 1.61% Reduced -10.7k -10,673
33 EVERGREEN CAPITAL MANAGEMENT LLC 0.06% of their portfolio Bellevue, WA 199,475199.5k $2.7m $2.7m 0.06% Reduced -19.3k -19,340
34 Hill Investment Group Partners, LLC 0.28% of their portfolio ST. LOUIS, MO 177,487177.5k $2.4m $2.4m 0.28% Unchanged
35 LPL Financial LLC 0.00% of their portfolio FORT MILL, SC 176,817176.8k $2.3m $2.3m 0.00% Added +10.2k +10,167
36 RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio ST. PETERSBURG, FL 165,935165.9k $2.2m $2.2m 0.00% Reduced -7.2k -7,176
37 Jump Financial, LLC 0.03% of their portfolio Chicago, IL 165,612165.6k $2.2m $2.2m 0.03% Added +8.8k +8,812
38 CIBC Private Wealth Group LLC 0.00% of their portfolio ATLANTA, GA 164,140164.1k $2.2m $2.2m 0.00% Added +15.6k +15,598
39 STIFEL FINANCIAL CORP 0.00% of their portfolio ST. LOUIS, MO 161,587161.6k $2.1m $2.1m 0.00% Added +9.5k +9,525
40 HORIZON KINETICS ASSET MANAGEMENT LLC 0.03% of their portfolio NEW YORK, NY 151,238151.2k $2.0m $2.0m 0.03% Reduced -7.4k -7,400
41 Board of Trustees of The Leland Stanford Junior University 0.40% of their portfolio STANFORD, CA 147,852147.9k $2.0m $2.0m 0.40% Unchanged
42 Cullen/Frost Bankers, Inc. 0.02% of their portfolio San Antonio, TX 143,484143.5k $1.9m $1.9m 0.02% Added +87.2k +87,172
43 Mraz, Amerine & Associates, Inc. 0.26% of their portfolio Modesto, CA 133,651133.7k $1.8m $1.8m 0.26% Reduced -1.0k -1,043
44 Bahl & Gaynor LLC 0.01% of their portfolio CINCINNATI, OH 131,500131.5k $1.7m $1.7m 0.01% Added +70.0k +70,000
45 AlphaCore Capital LLC 0.04% of their portfolio LA JOLLA, CA 130,962131.0k $1.7m $1.7m 0.04% Added +37.9k +37,932
46 Americana Partners, LLC 0.05% of their portfolio Houston, TX 126,427126.4k $1.7m $1.7m 0.05% Added +86.0k +85,956
47 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 120,919120.9k $1.6m $1.6m 0.00% Reduced -17.5k -17,532
48 MCDANIEL TERRY & CO 0.14% of their portfolio AUSTIN, TX 119,987120.0k $1.6m $1.6m 0.14% Unchanged
49 LMG Wealth Partners, LLC 0.25% of their portfolio SHREVEPORT, LA 101,824101.8k $1.4m $1.4m 0.25% Reduced -33.3k -33,338
50 RAHLFS CAPITAL, LLC 1.03% of their portfolio LAKE KIOWA, TX 100,062100.1k $1.3m $1.3m 1.03% Added +145 +145
51 O'Brien Greene & Co. Inc 0.39% of their portfolio MEDIA, PA 100,000100.0k $1.3m $1.3m 0.39% Unchanged
52 MERCER GLOBAL ADVISORS INC /ADV 0.00% of their portfolio DENVER, CO 93,56593.6k $1.2m $1.2m 0.00% Reduced -23 -23
53 HOWARD FINANCIAL SERVICES, LTD. 0.14% of their portfolio DALLAS, TX 92,06492.1k $1.2m $1.2m 0.14% Reduced -15 -15
54 Savant Capital, LLC 0.01% of their portfolio ROCKFORD, IL 89,05689.1k $1.2m $1.2m 0.01% Reduced -2.2k -2,186
55 JONES FINANCIAL COMPANIES LLLP 0.00% of their portfolio DES PERES, MO 86,28086.3k $1.1m $1.1m 0.00% Added +85.0k +85,000
56 Gem Investment Advisors, LLC 1.07% of their portfolio TEANECK, NJ 84,63284.6k $1.1m $1.1m 1.07% First filing
57 ZIONS BANCORPORATION, NATIONAL ASSOCIATION /UT/ 0.05% of their portfolio SALT LAKE CITY, UT 82,53382.5k $1.1m $1.1m 0.05% Unchanged
58 Beacon Pointe Advisors, LLC 0.01% of their portfolio NEWPORT BEACH, CA 79,79279.8k $1.1m $1.1m 0.01% Added +4.0k +4,002
59 CHASE INVESTMENT COUNSEL CORP 0.28% of their portfolio CHARLOTTESVILLE, VA 75,57775.6k $1.0m $1.0m 0.28% Unchanged
60 Independent Advisor Alliance 0.02% of their portfolio CHARLOTTE, NC 75,08775.1k $997.9k $997.9k 0.02% Added +43 +43
61 AVENIR CORP 0.11% of their portfolio ALEXANDRIA, VA 73,90073.9k $982.1k $982.1k 0.11% Unchanged
62 Invesco Ltd. 0.00% of their portfolio ATLANTA, GA 73,30273.3k $974.2k $974.2k 0.00% Reduced -20.2k -20,245
63 Rare Wolf Capital LLC 0.60% of their portfolio BELLEVUE, WA 72,83072.8k $967.9k $967.9k 0.60% First filing
64 Gruss & Co., LLC 2.08% of their portfolio WEST PALM BEACH, FL 71,01671.0k $943.8k $943.8k 2.08% Unchanged
65 Icon Wealth Advisors, LLC 0.06% of their portfolio HOUSTON, TX 69,80369.8k $927.7k $927.7k 0.06% Added +282 +282
66 Bramshill Investments, LLC 0.05% of their portfolio NAPLES, FL 65,50565.5k $870.6k $870.6k 0.05% Added +453 +453
67 FRANKLIN RESOURCES INC 0.00% of their portfolio San Mateo, CA 63,21463.2k $840.1k $840.1k 0.00% Reduced -3.8k -3,804
68 Jefferies Financial Group Inc. 0.01% of their portfolio NEW YORK, NY 62,40062.4k $829.3k $829.3k 0.01% Unchanged
69 Moors & Cabot, Inc. 0.04% of their portfolio BOSTON, MA 61,70061.7k $820.0k $820.0k 0.04% Reduced -1.0k -1,000
70 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 59,12959.1k $785.8k $785.8k 0.00% Added +32.3k +32,256
71 Welch & Forbes LLC 0.01% of their portfolio Boston, MA 58,96659.0k $783.7k $783.7k 0.01% Unchanged
72 CALDWELL SUTTER CAPITAL, INC. 0.31% of their portfolio SAUSALITO, CA 55,79055.8k $741.4k $741.4k 0.31% Unchanged
73 Vident Advisory, LLC 0.01% of their portfolio Alpharetta, GA 55,68755.7k $740.1k $740.1k 0.01% Reduced -9.4k -9,365
74 Sumitomo Mitsui Trust Group, Inc. 0.00% of their portfolio CHIYODA-KU, TOKYO, M0 50,00050.0k $664.5k $664.5k 0.00% Unchanged
75 Tweedy, Browne Co LLC 0.05% of their portfolio Stamford, CT 49,82949.8k $662.2k $662.2k 0.05% Added +7.1k +7,128
76 EXCHANGE TRADED CONCEPTS, LLC 0.01% of their portfolio Oklahoma City, OK 49,82949.8k $662.2k $662.2k 0.01% Added +7.1k +7,128
77 Clear Harbor Asset Management, LLC 0.04% of their portfolio Stamford, CT 49,30749.3k $655.3k $655.3k 0.04% Unchanged
78 RWA WEALTH PARTNERS, LLC 0.01% of their portfolio BOSTON, MA 46,41046.4k $616.8k $616.8k 0.01% Reduced -3.5k -3,487
79 Advocate Investing Services LLC 0.52% of their portfolio WOODBINE, MD 43,76343.8k $581.6k $581.6k 0.52% First filing
80 Advisory Services Network, LLC 0.01% of their portfolio ATLANTA, GA 43,22743.2k $574.5k $574.5k 0.01% Reduced -5.1k -5,148
81 Quantinno Capital Management LP 0.00% of their portfolio NEW YORK, NY 41,28841.3k $548.7k $548.7k 0.00% Reduced -1.3k -1,329
82 Family Manage LLC 0.07% of their portfolio NEW YORK, NY 39,76739.8k $528.5k $528.5k 0.07% Unchanged
83 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio CAUSEWAY BAY, K3 38,81838.8k $515.9k $515.9k 0.00% Added +4.4k +4,405
84 SPIRIT OF AMERICA MANAGEMENT CORP/NY 0.11% of their portfolio SYOSSET, NY 37,99938.0k $505.0k $505.0k 0.11% Reduced -43.0k -43,000
85 Ancora Advisors LLC 0.01% of their portfolio Cleveland, OH 36,87036.9k $490.0k $490.0k 0.01% Reduced -1.5k -1,490
86 ALPS ADVISORS INC 0.00% of their portfolio Denver, CO 36,70536.7k $487.8k $487.8k 0.00% Added +315 +315
87 BCS Wealth Management 0.05% of their portfolio JOHNSON CITY, TN 35,92235.9k $477.4k $477.4k 0.05% Added +18.3k +18,322
88 Fort Sheridan Advisors LLC 0.06% of their portfolio HIGHLAND PARK, IL 35,86735.9k $476.7k $476.7k 0.06% Unchanged
89 Aristides Capital LLC 0.16% of their portfolio LOUISVILLE, KY 35,51635.5k $472.0k $472.0k 0.16% Added +1.1k +1,120
90 DOLIVER ADVISORS, LP 0.12% of their portfolio HOUSTON, TX 35,02435.0k $465.5k $465.5k 0.12% Added +850 +850
91 US BANCORP \DE\ 0.00% of their portfolio MINNEAPOLIS, MN 34,77534.8k $462.2k $462.2k 0.00% Added +15.0k +15,000
92 JFS WEALTH ADVISORS, LLC 0.02% of their portfolio HERMITAGE, PA 32,74732.7k $435.2k $435.2k 0.02% Unchanged
93 BARTLETT & CO. WEALTH MANAGEMENT LLC 0.01% of their portfolio CINCINNATI, OH 32,74632.7k $435.2k $435.2k 0.01% Unchanged
94 Cetera Investment Advisers 0.00% of their portfolio SCHAUMBURG, IL 30,56430.6k $406.2k $406.2k 0.00% Reduced -2.7k -2,724
95 GRANDFIELD & DODD, LLC 0.02% of their portfolio NEW YORK, NY 30,38230.4k $403.8k $403.8k 0.02% Unchanged
96 Avidian Wealth Enterprises, LLC 0.01% of their portfolio Houston, TX 30,00030.0k $398.7k $398.7k 0.01% Unchanged
97 SIMPLEX TRADING, LLC 0.01% of their portfolio CHICAGO, IL 28,07228.1k $373.1k $373.1k 0.01% Added +25.0k +25,027
98 Hyperion Capital Advisors LP 0.18% of their portfolio New York, NY 27,22227.2k $361.8k $361.8k 0.18% New
99 MGO ONE SEVEN LLC 0.01% of their portfolio Beachwood, OH 26,79226.8k $356.1k $356.1k 0.01% New
100 TRUIST FINANCIAL CORP 0.00% of their portfolio CHARLOTTE, NC 26,67626.7k $354.5k $354.5k 0.00% Unchanged