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Lightbridge
LTBR

61 hedge funds and large institutions have $30M invested in Lightbridge in 2025 Q1 according to their latest regulatory filings, with 23 funds opening new positions, 21 increasing their positions, 11 reducing their positions, and 7 closing their positions.

New
Increased
Maintained
Reduced
Closed

229% more first-time investments, than exits

New positions opened: 23 | Existing positions closed: 7

189% more capital invested

Capital invested by funds: $10.4M → $30M (+$19.7M)

91% more repeat investments, than reductions

Existing positions increased: 21 | Existing positions reduced: 11

49% more call options, than puts

Call options by funds: $8.53M | Put options by funds: $5.72M

33% more funds holding

Funds holding: 46 → 61 (+15)

5.37% more ownership

Funds ownership: 13.91% → 19.28% (+5.4%)

Holders
61
Holders Change
+15
Holders Change %
+32.61%
% of All Funds
0.82%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
23
Increased
21
Reduced
11
Closed
7
Calls
$8.53M
Puts
$5.72M
Net Calls
+$2.81M
Net Calls Change
+$2.21M

Top Buyers

Rank Fund Capital Flow
1
UBS Group
UBS Group
Switzerland
+$4.38M
2
SC
Sculptor Capital
New York
+$3.16M
3
Morgan Stanley
Morgan Stanley
New York
+$2.31M
4
BlackRock
BlackRock
New York
+$1.7M
5
Millennium Management
Millennium Management
New York
+$1.42M

Top Sellers

Rank Fund Capital Flow
1
Two Sigma Investments
Two Sigma Investments
New York
-$1.79M
2
Renaissance Technologies
Renaissance Technologies
New York
-$910K
3
PAG
Private Advisor Group
New Jersey
-$627K
4
Two Sigma Advisers
Two Sigma Advisers
New York
-$466K
5
Simplex Trading
Simplex Trading
Illinois
-$209K
Name Holding Trade Value Shares
Change 		Change in
Stake
Vanguard Group
1
Vanguard Group
Pennsylvania
$5.27M +$919K +103,361 +17%
UBS Group
2
UBS Group
Switzerland
$4.3M +$4.38M +492,337 +583%
SC
3
Sculptor Capital
New York
$2.78M +$3.16M +355,500 +2,031%
Morgan Stanley
4
Morgan Stanley
New York
$2.15M +$2.31M +259,943 +923%
BlackRock
5
BlackRock
New York
$1.92M +$1.7M +191,213 +288%
Geode Capital Management
6
Geode Capital Management
Massachusetts
$1.33M +$54.5K +6,129 +4%
Jane Street
7
Jane Street
New York
$1.27M +$1.2M +134,523 +383%
TIM
8
Tortoise Investment Management
New York
$1.22M +$829K +93,225 +133%
Millennium Management
9
Millennium Management
New York
$1.19M +$1.42M +159,342 New
GWM
10
Geneos Wealth Management
Colorado
$942K +$1.12M +126,300 New
Renaissance Technologies
11
Renaissance Technologies
New York
$822K -$910K -102,400 -48%
PPA
12
Pilgrim Partners Asia
Singapore
$795K +$843K +94,800 +803%
Goldman Sachs
13
Goldman Sachs
New York
$683K +$699K +78,561 +602%
State Street
14
State Street
Massachusetts
$543K +$150K +16,900 +30%
Susquehanna International Group
15
Susquehanna International Group
Pennsylvania
$537K +$640K +71,950 New
Northern Trust
16
Northern Trust
Illinois
$528K -$22.1K -2,483 -3%
Balyasny Asset Management
17
Balyasny Asset Management
Illinois
$478K +$569K +64,033 New
Universal-Beteiligungs- und Servicegesellschaft
18
Universal-Beteiligungs- und Servicegesellschaft
Germany
$358K +$80K +9,000 +23%
LPL Financial
19
LPL Financial
California
$267K +$200K +22,549 +169%
DCM
20
Dudley Capital Management
Virginia
$255K – – –
Two Sigma Investments
21
Two Sigma Investments
New York
$241K -$1.79M -201,418 -86%
Group One Trading
22
Group One Trading
Illinois
$229K +$273K +30,690 New
OAC
23
OMERS Administration Corp
Ontario, Canada
$159K +$189K +21,300 New
RG
24
Rathbones Group
United Kingdom
$139K +$165K +18,586 New
CMS
25
Capital Market Strategies
Florida
$138K -$12.9K -1,450 -7%
1
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LTBR Hedge Fund Activity: Q1 2025 in Review

61 of the 7,461 institutional investors tracked by Wall St. Rank reported a position in Lightbridge (LTBR) for Q1 2025, worth a combined $30M — up 189% from $10.4M a quarter earlier.

Buyers outnumbered sellers: 23 funds opened new LTBR positions and 7 closed out — a net gain of 16 holders — while 21 added to existing stakes and 11 trimmed.

The largest buyer was UBS Group, adding an estimated $4.38M. The largest seller was Two Sigma Investments, cutting an estimated $1.79M.

  • 61 institutional investors held Lightbridge (LTBR) as of Q1 2025, up from 46 in Q4 2024.
  • Funds reported $30M of Lightbridge stock for Q1 2025, up 189% quarter-over-quarter.
  • 23 funds opened new Lightbridge positions in Q1 2025 and 7 closed out, a net change of +16 holders.
  • The largest Lightbridge buyer in Q1 2025 was UBS Group, an estimated $4.38M added.
  • The largest Lightbridge seller in Q1 2025 was Two Sigma Investments, an estimated $1.79M sold.

Based on aggregated 13F filings for Q1 2025.