Promethium Advisors’s LandBridge Co LB Stock Holding History

Promethium Advisors’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	$4.64M	Sell	67,238 -799	-1%	-$50.8K	2.4%	9
2025 Q4	$3.33M	Buy	68,037 +6,428	+10%	+$374K	1.8%	14
2025 Q3	$3.29M	Buy	61,609 +14,032	+29%	+$774K	1.88%	12
2025 Q2	$3.22M	Buy	47,577 +7,250	+18%	+$522K	1.95%	15
2025 Q1	$2.9M	Buy	40,327 +17,117	+74%	+$1.21M	1.86%	15
2024 Q4	$1.5M	Buy	23,210 +2,259	+11%	+$136K	1.03%	32
2024 Q3	$820K	Buy	+20,951	New	+$705K	0.58%	52

Other funds holding LB

First Manhattan New York $36.1B AUM 11.5% 1-Year Est. Return

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

Promethium Advisors's LB Position: Q1 2026 in Review

Promethium Advisors reduced its LandBridge Co (LB) stake by 1.2% in Q1 2026, selling an estimated $50.8K and leaving 67,238 shares worth $4.64M. The position accounts for 2.4% of the portfolio, ranked #9.

Promethium Advisors first reported a position in LB in Q3 2024 and has held it in 7 quarters since. 187 funds tracked by Wall St. Rank hold LB as of Q1 2026.

Promethium Advisors held 67,238 shares of LandBridge Co worth $4.64M as of Q1 2026.
Promethium Advisors sold 799 LandBridge Co shares in Q1 2026, an estimated $50.8K.
LandBridge Co made up 2.4% of Promethium Advisors's portfolio in Q1 2026, its #9 holding.
Promethium Advisors first reported a position in LandBridge Co in Q3 2024 and has held it in 7 quarters since.
187 funds tracked by Wall St. Rank held LandBridge Co as of Q1 2026.

Based on Promethium Advisors's 13F filing for Q1 2026, filed 22 Apr 2026.