Mariner
LTBR icon

Mariner’s Lightbridge LTBR Stock Holding History

Mariner’s Portfolio LTBR Stock Details LTBR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$252K Buy
28,660
+3,687
+15% +$41.5K ﹤0.01% 2967
2026
Q1 		$266K Sell
24,973
-9,806
-28% -$136K ﹤0.01% 2974
2025
Q4 		$440K Buy
+34,779
New +$669K ﹤0.01% 2538

Other funds holding LTBR

State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
ETC
Exchange Traded Concepts Oklahoma City, Oklahoma $21.9B AUM 68.6% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
BNP Paribas Financial Markets
BNP Paribas Financial Markets Paris, France $289B AUM 60.46% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
Northern Trust
Northern Trust Chicago, Illinois $860B AUM 41.15% 1-Year Est. Return

Mariner's LTBR Position: Q2 2026 in Review

Mariner increased its Lightbridge (LTBR) stake by 15% in Q2 2026, buying an estimated $41.5K and bringing the position to 28,660 shares worth $252K. The position accounts for ﹤0.01% of the portfolio, ranked #2967.

Mariner first reported a position in LTBR in Q4 2025 and has held it in 3 quarters since. The position peaked at $440K in Q4 2025. 130 funds tracked by Wall St. Rank hold LTBR as of Q2 2026.

  • Mariner held 28,660 shares of Lightbridge worth $252K as of Q2 2026.
  • Mariner bought 3,687 Lightbridge shares in Q2 2026, an estimated $41.5K.
  • Lightbridge made up ﹤0.01% of Mariner's portfolio in Q2 2026, its #2967 holding.
  • Mariner first reported a position in Lightbridge in Q4 2025 and has held it in 3 quarters since.
  • Mariner's Lightbridge position peaked at $440K in Q4 2025.
  • 130 funds tracked by Wall St. Rank held Lightbridge as of Q2 2026.

Based on Mariner's 13F filing for Q2 2026, filed 13 Aug 2026.