LB Institutional Ownership & Shareholders
LANDBRIDGE CO LLC-A (LB) is currently held by 187 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $2.24B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
First Manhattan Co. Llc. is currently the largest disclosed institutional shareholder of LB tracked by InsiderSet, reporting ownership valued at approximately $561.24M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $592.06M, representing an estimated gain of +5.49% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 75% of the total disclosed LB value among the investors covered in this analysis. Major shareholders include First Manhattan Co. Llc., Horizon Kinetics Asset Management Llc, Fmr Llc, and several other long-term asset managers with concentrated positions in LANDBRIDGE CO LLC-A (LB).
This page ranks the largest institutional LB shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
187
Total Reported Value
$2.24B
Largest Holder
First Manhattan Co. Llc.
Largest Position
$561.24M
Insider Transactions (90d)
10
Latest Filing Quarter
Q2 2026
New Institutional Positions
77
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| First Manhattan Co. Llc. | 1.43% | 7,082,845 | $561,244,638 | $592,055,014 | +$30,810,376 | +5.49% | |
| Horizon Kinetics Asset Management Llc | 5.23% | 5,821,263 | $461,276,842 | $486,599,374 | +$25,322,532 | +5.49% | |
| Fmr Llc | 0.01% | 1,775,450 | $140,686,658 | $148,409,866 | +$7,723,208 | +5.49% | |
| T. Rowe Price Investment Management, Inc. | 0.07% | 1,276,671 | $101,164,000 | $106,716,929 | +$5,552,929 | +5.49% | |
| Vanguard Portfolio Management Llc | 0.00% | 1,267,116 | $100,406,272 | $105,918,226 | +$5,511,954 | +5.49% | |
| William Blair Investment Management, Llc | 0.29% | 1,235,265 | $97,882,399 | $103,255,801 | +$5,373,402 | +5.49% | |
| Schwartz Investment Counsel Inc | 2.39% | 844,263 | $68,528,828 | $70,571,944 | +$2,043,116 | +2.98% | |
| Morgan Stanley | 0.00% | 731,836 | $57,990,753 | $61,174,171 | +$3,183,418 | +5.49% | |
| Hood River Capital Management Llc | 0.34% | 592,619 | $46,959,130 | $49,537,022 | +$2,577,892 | +5.49% | |
| Ubs Group Ag | 0.01% | 573,587 | $45,451,033 | $47,946,137 | +$2,495,104 | +5.49% | |
| Df Dent & Co Inc | 0.85% | 567,536 | $44,971,554 | $47,440,334 | +$2,468,780 | +5.49% | |
| Two Sigma Investments, Lp | 0.03% | 518,850 | $41,113,674 | $43,370,672 | +$2,256,998 | +5.49% | |
| Raymond James Financial Inc | 0.01% | 376,807 | $29,858,226 | $31,497,297 | +$1,639,071 | +5.49% | |
| Captrust Financial Advisors | 0.03% | 281,951 | $22,341,831 | $23,568,284 | +$1,226,453 | +5.49% | |
| Mad River Investors | 8.83% | 266,705 | $21,648,413 | $22,293,871 | +$645,458 | +2.98% | |
| Moors & Cabot, Inc. | 0.78% | 251,704 | $19,945,009 | $21,039,937 | +$1,094,928 | +5.49% | |
| Ashford Capital Management Inc | 2.00% | 234,860 | $18,610,306 | $19,631,947 | +$1,021,641 | +5.49% | |
| One Charles Private Wealth Services, Llc | 4.09% | 224,152 | $17,761,775 | $18,736,866 | +$975,091 | +5.49% | |
| Wells Fargo & Company/Mn | 0.00% | 222,604 | $17,639,133 | $18,607,468 | +$968,335 | +5.49% | |
| Millennium Management Llc | 0.01% | 211,305 | $16,743,808 | $17,662,985 | +$919,177 | +5.49% | |
| Eagleclaw Capital Managment, Llc | 2.24% | 210,805 | $16,704,188 | $17,621,190 | +$917,002 | +5.49% | |
| Summit Street Capital Management, Llc | 2.26% | 203,365 | $16,114,642 | $16,999,280 | +$884,638 | +5.49% | |
| Cortland Associates Inc/Mo | 2.12% | 179,842 | $14,598,000 | $15,032,993 | +$434,993 | +2.98% | |
| Tocqueville Asset Management L.P. | 0.13% | 128,490 | $10,181,548 | $10,740,479 | +$558,931 | +5.49% | |
| Marshall Wace, Llp | 0.01% | 118,494 | $9,389,465 | $9,904,913 | +$515,448 | +5.49% | |
| Blackrock, Inc. | 0.00% | 108,741 | $8,616,636 | $9,089,660 | +$473,024 | +5.49% | |
| Jane Street Group, Llc | 0.01% | 106,520 | $8,440,645 | $8,904,007 | +$463,362 | +5.49% | |
| Sprott Inc. | 0.26% | 100,059 | $7,928,703 | $8,363,932 | +$435,229 | +5.49% | |
| Ghisallo Capital Management Llc | 0.16% | 100,000 | $7,924,000 | $8,359,000 | +$435,000 | +5.49% | |
| Seven Grand Managers, Llc | 0.32% | 100,000 | $7,924,000 | $8,359,000 | +$435,000 | +5.49% | |
| Crawford Investment Counsel Inc | 0.13% | 95,243 | $7,547,055 | $7,961,362 | +$414,307 | +5.49% | |
| Advisory Services Network, Llc | 0.08% | 91,909 | $7,282,893 | $7,682,673 | +$399,780 | +5.49% | |
| Tudor Investment Corp Et Al | 0.03% | 83,955 | $6,652,594 | $7,017,798 | +$365,204 | +5.49% | |
| One8Zero8, Llc | 1.31% | 83,668 | $6,629,861 | $6,993,808 | +$363,947 | +5.49% | |
| Msrh, Llc | 5.73% | 93,756 | $6,473,852 | $7,837,064 | +$1,363,212 | +21.06% | |
| Goldman Sachs Group Inc | 0.00% | 78,767 | $6,241,497 | $6,584,134 | +$342,637 | +5.49% | |
| Aqr Capital Management Llc | 0.00% | 75,633 | $5,993,158 | $6,322,162 | +$329,004 | +5.49% | |
| Promethium Advisors,Llc | 2.75% | 68,965 | $5,597,903 | $5,764,784 | +$166,881 | +2.98% | |
| Sei Investments Co | 0.00% | 67,360 | $5,337,606 | $5,630,622 | +$293,016 | +5.49% | |
| Commonwealth Equity Services, Llc | 0.01% | 58,512 | $4,749,446 | $4,891,018 | +$141,572 | +2.98% | |
| Barclays Plc | 0.00% | 58,629 | $4,645,762 | $4,900,798 | +$255,036 | +5.49% | |
| Geode Capital Management, Llc | 0.00% | 58,491 | $4,634,826 | $4,889,263 | +$254,437 | +5.49% | |
| Viking Fund Management Llc | 0.40% | 56,000 | $4,545,520 | $4,681,040 | +$135,520 | +2.98% | |
| Swiss National Bank | 0.00% | 55,900 | $4,429,516 | $4,672,681 | +$243,165 | +5.49% | |
| Legal & General Group Plc | 0.00% | 52,313 | $4,085,763 | $4,372,844 | +$287,081 | +7.03% | |
| Bank Of America Corp | 0.00% | 51,416 | $4,074,204 | $4,297,863 | +$223,659 | +5.49% | |
| State Street Corp | 0.00% | 51,066 | $4,046,470 | $4,268,607 | +$222,137 | +5.49% | |
| Jpmorgan Chase & Co | 0.00% | 56,931 | $3,976,630 | $4,758,862 | +$782,232 | +19.67% | |
| Xtx Topco Ltd | 0.05% | 49,995 | $3,961,604 | $4,179,082 | +$217,478 | +5.49% | |
| Cinctive Capital Management Lp | 0.16% | 49,826 | $3,948,212 | $4,164,955 | +$216,743 | +5.49% |
Frequently asked questions about LB
Who are the largest institutional holders of LB?
The largest institutional holders of LB reported in the latest SEC Form 13F filings include First Manhattan Co. Llc., Horizon Kinetics Asset Management Llc, Fmr Llc, T. Rowe Price Investment Management, Inc., and Vanguard Portfolio Management Llc. InsiderSet ranks institutional holders by their latest reported LB position.
What is LB institutional ownership?
This page tracks LB positions reported by institutional investment managers through SEC Form 13F. LANDBRIDGE CO LLC-A (LB) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own LB?
InsiderSet currently tracks 187 institutional managers reporting LB holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of LB shareholders.
How much LB stock do institutions own?
Institutional investment managers disclosed approximately $2.24B in LB holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was LB institutional ownership last updated?
The latest LB institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional LB holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its LB position after the reporting date.
Are institutions buying or selling LB?
Institutional buying and selling can be analyzed by comparing LB positions across consecutive 13F reporting periods. InsiderSet's LB Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View LB ownership changes.
How has LB institutional ownership changed over time?
InsiderSet tracks LB institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.