Simplex Trading
LB

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 		$721K Buy
9,100
+8,100
+810% +$556K ﹤0.01% 3164
2026
Q1 		$69K Sell
1,000
-1,600
-62% -$102K ﹤0.01% 5505
2025
Q4 		$127K Sell
2,600
-2,900
-53% -$169K ﹤0.01% 4726
2025
Q3 		$293K Buy
5,500
+1,600
+41% +$88.2K ﹤0.01% 4494
2025
Q2 		$263K Buy
3,900
+100
+3% +$7.21K ﹤0.01% 4217
2025
Q1 		$273K Buy
3,800
+3,100
+443% +$219K ﹤0.01% 4009
2024
Q4 		$45K Buy
+700
New +$42K ﹤0.01% 5996

Other funds holding LB

First Manhattan
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
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
William Blair Investment Management
William Blair Investment Management Chicago, Illinois $33.3B AUM 44.76% 1-Year Est. Return
Morgan Stanley
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
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.