Simplex Trading’s LandBridge Co LB Stock Holding History

Simplex Trading’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 Q2	$181K	Buy	+2,289	New	+$157K	﹤0.01%	4836
2026 Q1	–	Sell	-791	Closed	-$50.3K	–	10383
2025 Q4	$38.8K	Sell	791 -411	-34%	-$23.9K	﹤0.01%	5886
2025 Q3	$64K	Buy	+1,202	New	+$66.3K	﹤0.01%	6213
2025 Q2	–	Sell	-1,661	Closed	-$120K	–	9935
2025 Q1	$119K	Buy	+1,661	New	+$118K	﹤0.01%	4885

Other funds holding LB

First Manhattan New York $39.2B AUM 21.04% 1-Year Est. Return

HKAM

Horizon Kinetics Asset Management New York $8.82B AUM 23.05% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

William Blair Investment Management Chicago, Illinois $33.3B AUM 44.76% 1-Year Est. Return

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

SIC

Schwartz Investment Counsel Plymouth, Michigan $3.01B AUM 27.22% 1-Year Est. Return

HRCM

Hood River Capital Management Palm Beach Gardens, Florida $13.8B AUM 163.97% 1-Year Est. Return

UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return

Simplex Trading's LB Position: Q2 2026 in Review

Simplex Trading opened a new position in LandBridge Co (LB) in Q2 2026: 2,289 shares worth $181K. The stake represents ﹤0.01% of the portfolio and ranks #4836 among its holdings. This is a return to the name: Simplex Trading previously reported a position in LB as recently as Q4 2025.

Simplex Trading first reported a position in LB in Q1 2025 and has held it in 4 quarters since. 193 funds tracked by Wall St. Rank hold LB as of Q2 2026.

Simplex Trading held 2,289 shares of LandBridge Co worth $181K as of Q2 2026.
LandBridge Co was a new Simplex Trading position in Q2 2026.
LandBridge Co made up ﹤0.01% of Simplex Trading's portfolio in Q2 2026, its #4836 holding.
Simplex Trading first reported a position in LandBridge Co in Q1 2025 and has held it in 4 quarters since.
193 funds tracked by Wall St. Rank held LandBridge Co as of Q2 2026.

Based on Simplex Trading's 13F filing for Q2 2026, filed 12 Aug 2026.