First Manhattan’s LandBridge Co LB Stock Holding History

First Manhattan’s Portfolio LB Stock Details LB Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$487M	Buy	7,057,228 +195,289	+3%	+$12.4M	1.35%	16
2025 Q4	$339M	Buy	6,861,939 +1,330,099	+24%	+$77.3M	0.89%	25
2025 Q3	$295M	Buy	5,531,840 +2,419,273	+78%	+$133M	0.78%	28
2025 Q2	$210M	Buy	3,112,567 +314,360	+11%	+$22.7M	0.59%	31
2025 Q1	$201M	Buy	2,798,207 +84,701	+3%	+$5.99M	0.59%	31
2024 Q4	$175M	Buy	2,713,506 +516,380	+24%	+$31M	0.51%	34
2024 Q3	$86M	Buy	2,197,126 +276,691	+14%	+$9.31M	0.25%	52
2024 Q2	$44.5M	Buy	+1,920,435	New	+$44.5M	0.14%	69

Other funds holding LB

HKAM

Horizon Kinetics Asset Management New York $9.23B AUM 27.52% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

William Blair Investment Management Chicago, Illinois $30.3B AUM 33.75% 1-Year Est. Return

UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return

HRCM

Hood River Capital Management Palm Beach Gardens, Florida $9.98B AUM 145.42% 1-Year Est. Return

SIC

Schwartz Investment Counsel Plymouth, Michigan $2.82B AUM 13.66% 1-Year Est. Return

Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return

Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return

First Manhattan's LB Position: Q1 2026 in Review

First Manhattan increased its LandBridge Co (LB) stake by 2.8% in Q1 2026, buying an estimated $12.4M and bringing the position to 7,057,228 shares worth $487M. The position accounts for 1.35% of the portfolio, ranked #16.

First Manhattan first reported a position in LB in Q2 2024 and has held it in 8 quarters since. 187 funds tracked by Wall St. Rank hold LB as of Q1 2026.

First Manhattan held 7,057,228 shares of LandBridge Co worth $487M as of Q1 2026.
First Manhattan bought 195,289 LandBridge Co shares in Q1 2026, an estimated $12.4M.
LandBridge Co made up 1.35% of First Manhattan's portfolio in Q1 2026, its #16 holding.
First Manhattan first reported a position in LandBridge Co in Q2 2024 and has held it in 8 quarters since.
187 funds tracked by Wall St. Rank held LandBridge Co as of Q1 2026.

Based on First Manhattan's 13F filing for Q1 2026, filed 15 May 2026.