LANDBRIDGE CO LLC-A (LB) Institutional Shareholders
LANDBRIDGE CO LLC-A (LB) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $1.91B in LB holdings during the latest filing period.
First Manhattan Co. Llc. is currently the largest disclosed institutional shareholder of LB tracked by InsiderSet, reporting ownership valued at approximately $487.30M in its March 31, 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 $547.08M, representing an estimated gain of +12.27% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 73% 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, Morgan Stanley, 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
186
Total Reported Value
$1.91B
Largest Holder
First Manhattan Co. Llc.
Largest Position
$487.30M
Insider Transactions (90d)
4
Latest Filing Quarter
Q2 2026
New Institutional Positions
161
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. | 1.35% | 7,057,228 | $487,301,593 | $547,076,315 | +$59,774,722 | +12.27% | |
| Horizon Kinetics Asset Management Llc | 4.23% | 5,657,134 | $390,625,134 | $438,541,028 | +$47,915,894 | +12.27% | |
| Morgan Stanley | 0.01% | 1,475,827 | $101,905,875 | $114,406,109 | +$12,500,234 | +12.27% | |
| Fmr Llc | 0.00% | 1,334,828 | $92,169,874 | $103,475,867 | +$11,305,993 | +12.27% | |
| Vanguard Portfolio Management Llc | 0.00% | 1,239,898 | $85,614,957 | $96,116,893 | +$10,501,936 | +12.27% | |
| William Blair Investment Management, Llc | 0.20% | 887,466 | $61,279,527 | $68,796,364 | +$7,516,837 | +12.27% | |
| Schwartz Investment Counsel Inc | 1.70% | 644,716 | $51,087,296 | $49,978,384 | -$1,108,912 | -2.17% | |
| Ubs Group Ag | 0.01% | 633,169 | $43,720,320 | $49,083,261 | +$5,362,941 | +12.27% | |
| Hood River Capital Management Llc | 0.43% | 621,075 | $42,885,229 | $48,145,734 | +$5,260,505 | +12.27% | |
| Marshall Wace, Llp | 0.04% | 562,062 | $38,810,381 | $43,571,046 | +$4,760,665 | +12.27% | |
| Two Sigma Investments, Lp | 0.03% | 545,477 | $37,665,187 | $42,285,377 | +$4,620,190 | +12.27% | |
| Df Dent & Co Inc | 0.66% | 497,807 | $34,373,608 | $38,589,999 | +$4,216,391 | +12.27% | |
| Cortland Associates Inc/Mo | 4.40% | 384,317 | $30,453,000 | $29,792,254 | -$660,746 | -2.17% | |
| Raymond James Financial Inc | 0.01% | 363,112 | $25,072,838 | $28,148,442 | +$3,075,604 | +12.27% | |
| Captrust Financial Advisors | 0.03% | 274,559 | $18,953,910 | $21,283,814 | +$2,329,904 | +12.29% | |
| Mad River Investors | 6.64% | 266,385 | $18,393,886 | $20,650,165 | +$2,256,279 | +12.27% | |
| One Charles Private Wealth Services, Llc | 4.09% | 224,152 | $17,761,775 | $17,376,263 | -$385,512 | -2.17% | |
| Ashford Capital Management Inc | 2.12% | 248,540 | $17,161,687 | $19,266,821 | +$2,105,134 | +12.27% | |
| Summit Street Capital Management, Llc | 2.22% | 227,258 | $15,692,165 | $17,617,040 | +$1,924,875 | +12.27% | |
| Moors & Cabot, Inc. | 0.66% | 223,994 | $15,466,790 | $17,364,015 | +$1,897,225 | +12.27% | |
| Jane Street Group, Llc | 0.02% | 214,698 | $14,824,898 | $16,643,389 | +$1,818,491 | +12.27% | |
| Eagleclaw Capital Managment, Llc | 2.02% | 208,955 | $14,428,343 | $16,198,192 | +$1,769,849 | +12.27% | |
| Citadel Advisors Llc | 0.01% | 204,233 | $14,102,288 | $15,832,142 | +$1,729,854 | +12.27% | |
| Wells Fargo & Company/Mn | 0.00% | 188,255 | $12,999,035 | $14,593,528 | +$1,594,493 | +12.27% | |
| Hightower Advisors, Llc | 0.01% | 156,909 | $10,834,650 | $12,163,586 | +$1,328,936 | +12.27% | |
| Sei Investments Co | 0.01% | 134,720 | $9,302,416 | $10,443,494 | +$1,141,078 | +12.27% | |
| Sprott Inc. | 0.26% | 100,059 | $7,928,703 | $7,756,574 | -$172,129 | -2.17% | |
| Amundi | 0.00% | 102,085 | $7,048,969 | $7,913,629 | +$864,660 | +12.27% | |
| Tocqueville Asset Management L.P. | 0.10% | 100,950 | $6,970,598 | $7,825,644 | +$855,046 | +12.27% | |
| Ghisallo Capital Management Llc | 0.19% | 100,000 | $6,905,000 | $7,752,000 | +$847,000 | +12.27% | |
| Seven Grand Managers, Llc | 0.46% | 100,000 | $6,905,000 | $7,752,000 | +$847,000 | +12.27% | |
| Daiwa Securities Group Inc. | 0.02% | 85,738 | $6,793,879 | $6,646,410 | -$147,469 | -2.17% | |
| Msrh, Llc | 5.73% | 93,756 | $6,473,852 | $7,267,965 | +$794,113 | +12.27% | |
| Crawford Investment Counsel Inc | 0.11% | 93,497 | $6,455,968 | $7,247,887 | +$791,919 | +12.27% | |
| Advisory Services Network, Llc | 0.08% | 90,871 | $6,274,629 | $7,044,320 | +$769,691 | +12.27% | |
| Blackrock, Inc. | 0.00% | 87,006 | $6,007,765 | $6,744,705 | +$736,940 | +12.27% | |
| Aqr Capital Management Llc | 0.00% | 77,803 | $5,372,297 | $6,031,289 | +$658,992 | +12.27% | |
| One8Zero8, Llc | 1.19% | 77,653 | $5,361,971 | $6,019,661 | +$657,690 | +12.27% | |
| Promethium Advisors,Llc | 2.40% | 67,238 | $4,642,788 | $5,212,290 | +$569,502 | +12.27% | |
| Commonwealth Equity Services, Llc | 0.01% | 58,077 | $4,601,998 | $4,502,129 | -$99,869 | -2.17% | |
| Bank Of America Corp | 0.00% | 64,933 | $4,483,624 | $5,033,606 | +$549,982 | +12.27% | |
| Viking Fund Management Llc | 0.40% | 56,000 | $4,437,440 | $4,341,120 | -$96,320 | -2.17% | |
| Aquatic Capital Management Llc | 0.12% | 59,785 | $4,128,154 | $4,634,533 | +$506,379 | +12.27% | |
| Geode Capital Management, Llc | 0.00% | 55,181 | $3,810,247 | $4,277,631 | +$467,384 | +12.27% | |
| Swiss National Bank | 0.00% | 55,000 | $3,797,750 | $4,263,600 | +$465,850 | +12.27% | |
| Kingswood Wealth Advisors, Llc | 0.15% | 46,097 | $3,652,700 | $3,573,439 | -$79,261 | -2.17% | |
| Royal Bank Of Canada | 0.00% | 44,985 | $3,106,000 | $3,487,237 | +$381,237 | +12.27% | |
| Atlas Wealth Partners, Llc | 3.33% | 38,420 | $3,044,400 | $2,978,318 | -$66,082 | -2.17% | |
| Aventail Capital Group, Lp | 0.14% | 41,208 | $2,845,412 | $3,194,444 | +$349,032 | +12.27% | |
| Tudor Investment Corp Et Al | 0.02% | 40,392 | $2,789,068 | $3,131,188 | +$342,120 | +12.27% |
Frequently asked questions about LB
Who owns the most LB stock?
The largest holders of LB are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for LANDBRIDGE CO LLC-A (LB).
Is LB widely held by superinvestors?
Many widely followed stocks like LB appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly LB is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.