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LTBR · LIGHTBRIDGE Corp · Holdings

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$5.42 +0.19 (+3.63%)
Russell 2000 member Rebalance outlook locked
Market Cap
$195.91M
Shares
37.46M
Volume · Oct 21 529.87K Avg daily vol (3M) 813.31K

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP → See every holder of LTBR: 13F, 13D and 13G, insiders and funds →
Institutional holdings are being reconciled with SEC filings. Holder totals and changes may be incomplete until reconciliation finishes.
The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.
Holders: 130
Total Value: $134,440,360
Total Shares: 15,352,590
Showing 1–100 of 136 holdings by value · page 1 of 2

Institutional Ownership Trend

27 quarters

Holder Concentration

Across 130 13F filers
Top Holder
18.5%
Sep 2023 → Jun 2026 · range 10.8% – 47.9%
of institutional value
Top 5
58.2%
Sep 2023 → Jun 2026 · range 40.9% – 77.6%
of institutional value
Top 10
73.9%
Sep 2023 → Jun 2026 · range 61.0% – 91.4%
of institutional value
HHI
883
Sep 2023 → Jun 2026 · range 527 – 2,634
Broadly held

Who Holds LTBR

Last 8 quarters through Sep 30, 2026 (filing window open)

Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.

Jun 30, 2026, the newest closed quarter: 129 filers, like-for-like change +1.6%; actively managed books -11.0%; index-like books +12.6%.

Holder type Share Filers Change
Registered adviser 42.6% 69 +9.3%
Exempt adviser 0.8% 2 -28.4%
Adviser 0.1% 3 +22.0%
Bank 26.5% 13 +12.2%
Broker-dealer 0.3% 2 -50.7%
Benefit plan 0.0% 1 -73.9%
Non-US 3.5% 4 -64.4%
Holding company 18.5% 6 +15.2%
Unknown 7.8% 29 -5.3%

The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.

How the mix is measured

Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.

Excluded 1 holder with no observed 2026-06-30 13F.

Conviction and Crowding

129 13F filers, quarter ended Jun 30, 2026

Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.

Conviction holders
0
0.000% of filers hold it in their top 10
Mar 31, 2026: 0
Holders above 5%
0
median weight 0.000%
Mar 31, 2026: 0
Crowding
6.23%
of shares outstanding, 19th percentile
Mar 31, 2026: 6.05%
Private-fund advisers
5.29%
of shares outstanding
Institutional ownership
41.9%
44.1% of the estimated free float
Top 10 holders
76.3%
of 13F shares, Herfindahl 0.094
Active holders
-11.0%
like-for-like share change of active filers
5% stakes on record
2
0 13D, 2 13G (2 institutional, 0 passive, 0 exempt)
How long holders have held it value-weighted 10.5 quarters
Under 1 year 23.1% 1 to 3 years 43.6% 3 years or more 33.3% Since coverage start 0.000%

Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).

Estimated Holder Cost Basis

Quarter ended Jun 30, 2026, on that quarter's share basis

Estimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.

Estimated avg cost
$13.85
estimated per share
Mar 31, 2026: $14.49
Quarter-end price
$8.79
implied by 13F values
Estimated gain or loss
-36.5%
price against the estimated cost
Estimated at a loss
99.9%
of costed 13F value

Estimated cost covers 61.8% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.

Shared Holders

Companies LTBR's active holders also own, quarter ended Jun 30, 2026
# Company Shared holders
1 UEC Uranium Energy Corp 3
2 OKLO Oklo Inc. 3
3 SCCO Southern Copper Corp 3
4 HEI Heico Corp 3
5 LHX L3harris Technologies, Inc. 3
6 CEG Constellation Energy Corp 3
7 PLTR Palantir Technologies Inc. 4
8 AMD Advanced Micro Devices Inc 5
9 TSLA Tesla, Inc. 5
10 GS Goldman Sachs Group Inc 4

Shareholder Targets

13F filers that own its peers but not LTBR, quarter ended Jun 30, 2026

Found through its holder-overlap peers: UEC, OKLO, SCCO, HEI, LHX, CEG, PLTR, AMD, TSLA, GS, STT, BA, AVGO, BAC, IBM, C, LMT, GLW, MS, NVDA. 6,710 filers in all.

# Filer In peers
1 NORGES BANK Non-US, Index-like $144,606,269,459 17 held
2 Capital World Investors Adviser, Diversified active $121,736,517,091 16 held
3 Capital Research Global Investors Adviser, Diversified active $102,557,335,875 15 held
4 MITSUBISHI UFJ FINANCIAL GROUP INC Bank, Unknown $78,825,883,309 1 held
5 Amundi Holding company, Index-like $63,481,131,118 20 held
6 Capital International Investors Adviser, Diversified active $58,164,622,560 9 held
7 FRANKLIN RESOURCES INC Adviser, Diversified active $52,818,764,069 20 held
8 Fisher Asset Management, LLC Adviser, Diversified active $47,205,217,388 18 held
9 AMERIPRISE FINANCIAL INC Adviser, Diversified active $47,186,391,560 20 held
10 DIMENSIONAL FUND ADVISORS LP Registered adviser, Diversified active $40,031,923,715 20 held

Fund Ownership of LTBR by Fund Type

Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026

Index funds and index ETFs hold 20.71% of shares outstanding.

Fund type Of shares outstanding Shares
Index funds 2.86% 1,072,273
Index ETFs 17.84% 6,684,100
Active ETFs 0.00% 842
Active funds 0.86% 321,641
Unclassified 0.06% 21,820
All registered funds 21.63% 8,100,676
How fund types are measured

Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.

Holder type: Registered adviser 68 Exempt adviser 2 Adviser 3 Bank 13 Broker-dealer 2 Benefit plan 1 Non-US 4 Holding company 6 Unknown 31
Showing 100 of 136
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
STATE STREET CORP $24,871,322 18.50% 2,829,502
BlackRock, Inc. $22,580,356 16.80% 2,568,869
VANGUARD CAPITAL MANAGEMENT LLC $13,144,636 9.78% 1,495,408
EXCHANGE TRADED CONCEPTS, LLC $9,820,653 7.30% 1,117,253
GEODE CAPITAL MANAGEMENT, LLC $7,707,212 5.73% 876,816
MILLENNIUM MANAGEMENT LLC $6,143,269 4.57% 698,893
UBS Group AG $4,768,275 3.55% 542,466
BNP PARIBAS ARBITRAGE, SA $4,147,719 3.09% 471,868
RENAISSANCE TECHNOLOGIES LLC $2,974,536 2.21% 338,400
NORTHERN TRUST CORP $2,579,116 1.92% 293,415
Pacer Advisors, Inc. $2,034,085 1.51% 231,409
VANGUARD PORTFOLIO MANAGEMENT LLC $2,025,875 1.51% 230,475
VANGUARD FIDUCIARY TRUST CO $1,948,215 1.45% 221,640
Tortoise Investment Management, LLC $1,898,086 1.41% 215,937
D. E. Shaw & Co., Inc. $1,463,657 1.09% 166,514
SUSQUEHANNA INTERNATIONAL GROUP, LLP $1,344,870 1.00% 153,000
CITADEL ADVISORS LLC $995,907 0.74% 113,300
Trexquant Investment LP $957,775 0.71% 108,962
CHARLES SCHWAB INVESTMENT MANAGEMENT INC $923,090 0.69% 105,016
SUSQUEHANNA INTERNATIONAL GROUP, LLP $840,798 0.63% 95,654
SUSQUEHANNA INTERNATIONAL GROUP, LLP $830,655 0.62% 94,500
MORGAN STANLEY $789,893 0.59% 89,863
Bank of New York Mellon Corp $751,561 0.56% 85,502
Themes Management Co LLC $745,321 0.55% 84,792
Nuveen, LLC $724,997 0.54% 82,480
MARSHALL WACE, LLP $719,680 0.54% 81,875
Inspire Investing, LLC $680,759 0.51% 77,447
Geneos Wealth Management Inc. $638,883 0.48% 72,683
CITADEL ADVISORS LLC $618,816 0.46% 70,400
Foundations Investment Advisors, LLC $618,675 0.46% 70,384
BOOTHBAY FUND MANAGEMENT, LLC $569,934 0.42% 64,839
AQR CAPITAL MANAGEMENT LLC $501,423 0.37% 57,045
JONES FINANCIAL COMPANIES LLLP $448,325 0.33% 51,004
Atom Investors LP $430,490 0.32% 48,975
JANE STREET GROUP, LLC $403,461 0.30% 45,900
Tempo Wealth, LLC $392,345 0.29% 62,376
Schear Investment Advisers, LLC $392,345 0.29% 62,376
BANK OF AMERICA CORP /DE/ $382,408 0.28% 43,505
WELLS FARGO & COMPANY/MN $378,249 0.28% 43,032
RHUMBLINE ADVISERS $369,373 0.27% 42,022
Balyasny Asset Management L.P. $365,540 0.27% 41,586
PRICE T ROWE ASSOCIATES INC /MD/ $351,916 0.26% 40,036
GOLDMAN SACHS GROUP INC $349,164 0.26% 39,723
JANE STREET GROUP, LLC $318,198 0.24% 36,200
ExodusPoint Capital Management, LP $315,121 0.23% 35,850
DEUTSCHE BANK AG\ $294,939 0.22% 33,554
BENJAMIN EDWARDS INC $292,381 0.22% 33,263
Pilgrim Partners Asia Pte Ltd $290,070 0.22% 33,000
Universal- Beteiligungs- und Servicegesellschaft mbH $281,280 0.21% 32,000
Rockefeller Capital Management L.P. $278,344 0.21% 31,666
Tidal Investments LLC $271,971 0.20% 30,941
IMC-Chicago, LLC $263,761 0.20% 30,007
DUDLEY CAPITAL MANAGEMENT, LLC $263,700 0.20% 30,000
Tidal Investments LLC $259,305 0.19% 29,500
Rathbones Group PLC $253,591 0.19% 28,850
Mariner, LLC $251,921 0.19% 28,660
TWO SIGMA INVESTMENTS, LP $232,504 0.17% 26,451
LPL Financial LLC $227,740 0.17% 25,909
Cetera Investment Advisers $224,909 0.17% 25,587
CITADEL ADVISORS LLC $221,094 0.16% 25,153
MetLife Investment Management, LLC $214,308 0.16% 24,381
ROYAL BANK OF CANADA $203,628 0.15% 23,166
LeConte Wealth Management, LLC $201,783 0.15% 32,080
ALLIANCEBERNSTEIN L.P. $191,622 0.14% 21,800
AMERICAN CENTURY COMPANIES INC $186,286 0.14% 21,193
Virtu Financial LLC $172,530 0.13% 19,628
MILESTONE ASSET MANAGEMENT, LLC $168,590 0.13% 26,803
Creative Planning $160,566 0.12% 18,267
Squarepoint Ops LLC $156,066 0.12% 17,755
Invesco Ltd. $155,942 0.12% 17,741
CITIGROUP INC $139,531 0.10% 15,874
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. $138,732 0.10% 15,783
WELLINGTON MANAGEMENT GROUP LLP $135,910 0.10% 15,462
EntryPoint Capital, LLC $134,179 0.10% 15,265
JPMORGAN CHASE & CO $132,789 0.10% 15,107
EAGLE GLOBAL ADVISORS LLC $123,060 0.09% 14,000
RAYMOND JAMES FINANCIAL INC $115,553 0.09% 13,146
Vanguard Global Advisers, LLC $114,006 0.08% 12,970
GROUP ONE TRADING LLC $110,762 0.08% 12,601
Graham Capital Management, L.P. $107,238 0.08% 12,200
Powell Investment Advisors, LLC $102,403 0.08% 11,650
INTECH INVESTMENT MANAGEMENT LLC $91,108 0.07% 10,365
Apella Capital, LLC $90,085 0.07% 14,322
Kestra Advisory Services, LLC $89,658 0.07% 10,200
Russell Investments Group, Ltd. $79,346 0.06% 9,027
BARCLAYS PLC $73,307 0.05% 8,340
Police & Firemen's Retirement System of New Jersey $70,741 0.05% 8,048
NewEdge Advisors, LLC $70,320 0.05% 8,000
NEW YORK STATE COMMON RETIREMENT FUND $58,893 0.04% 6,700
Zurcher Kantonalbank (Zurich Cantonalbank) $48,670 0.04% 5,537
Stone House Investment Management, LLC $42,824 0.03% 4,872
TrinityBridge Ltd $36,918 0.03% 4,200
LOS ANGELES CAPITAL MANAGEMENT LLC $35,335 0.03% 4,020
Arax Advisory Partners $32,795 0.02% 3,731
Legal & General Group Plc $29,165 0.02% 3,318
Ameritas Investment Partners, Inc. $27,345 0.02% 3,111
OSAIC HOLDINGS, INC. $26,616 0.02% 3,028
SBI Securities Co., Ltd. $26,115 0.02% 2,971
Quantbot Technologies LP $23,565 0.02% 2,681
Tower Research Capital LLC (TRC) $21,684 0.02% 2,467

Showing the top 100 of 136 holders. Create a free account to see every holder, past quarters, search, filters and CSV export.

Key facts CIK 1084554 CUSIP 53224K302 13F (30d) 13 filings 13 filers Visit website Investor relations