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WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC

Position in LB — LandBridge Co LLC

CIK 1644956 CHICAGO, IL

Position in LB

as of Jun 30, 2026 · filed Aug 12, 2026
Position Value
$97,882,398
+$36,602,871 QoQ
Shares Held
1,235,265
+39.2% QoQ
Ownership
1.60%
of shares outstanding
% of Portfolio
0.29%
of 13F equity value
Holder Rank
#6
of 192 holders
Holding Since
Dec 2025
3 quarters on record
Voting authority Sole 93% Shared 0% None 7%

Common Shares in LB Over Time

Shares Held

Position Value (USD)

Position in Oil & Gas E&P

Energy · as of Jun 30, 2026

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC holds $416,132,530 across 9 Oil & Gas E&P names. LB ranks #2 (23.5% of the industry book) .

# Ticker Company Shares Value (USD) Open
2 LB
LandBridge Co LLC
This page
1,235,265 $97,882,398

All Filings in LB

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3 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $97,882,398 1,235,265
2026-03-31 $61,279,527 887,466
2025-12-31 $33,817,356 690,291