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Equibles

LTBR

LIGHTBRIDGE Corp

Company with tickers: LTBR

CIK
1084554
CUSIP
53224K302
Shares Outstanding
32,844,487
13F Activity (30d)
11 filings 7 filers

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.

Holders: 135
Total Value: $181,676,430
Total Shares: 17,042,825
Showing 1–100 of 141 holdings by value · page 1 of 2

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 135 13F filers · Δ vs Dec 31, 2025
Top Holder
16.2%
Sep 2023 → Mar 2026 · range 10.8% – 47.9%
+2.3 pts
Top 5
56.9%
Sep 2023 → Mar 2026 · range 40.9% – 77.6%
+6.7 pts
Top 10
75.6%
Sep 2023 → Mar 2026 · range 61.0% – 91.4%
+5.3 pts
HHI
799
Sep 2023 → Mar 2026 · range 527 – 2,634
Broadly held+101

Quarterly Activity

vs Dec 31, 2025
New
29
Increased
41
Decreased
39
Sold Out
14
Unchanged
26
Holder count: +15
Institutional value: -11.4%
Shares held: +5.0%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Mega BNP PARIBAS ARBITRAGE, SA +1,162,209 1,413,971
Mega STATE STREET CORP +1,067,406 4,762,728
Mid EXCHANGE TRADED CONCEPTS, LLC +253,057 1,081,607
Large RENAISSANCE TECHNOLOGIES LLC +115,395 653,900
Mega BlackRock, Inc. +77,118 2,088,709

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Mega JANE STREET GROUP, LLC −324,085 14,800
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP −248,515 453,745
Mega MORGAN STANLEY −187,153 189,828
Mega TWO SIGMA INVESTMENTS, LP −71,685 142,636
Small Pilgrim Partners Asia Pte Ltd −61,600 55,000

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open
Mega VANGUARD CAPITAL MANAGEMENT LLC 1,374,016 $14,647,010
Mega VANGUARD FIDUCIARY TRUST CO 227,381 $2,423,881
Large Balyasny Asset Management L.P. 124,980 $1,332,286
Large MARSHALL WACE, LLP 105,361 $1,123,147
Mega D. E. Shaw & Co., Inc. 55,516 $591,799

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Mega VANGUARD GROUP INC 1,828,494 $23,112,163
Mega AMERIPRISE FINANCIAL INC 628,938 $7,949,775
Large Verition Fund Management LLC 156,023 $1,972,130
Mid Pacer Advisors, Inc. 139,589 $1,764,404
Large PEAK6 LLC 77,000 $973,280
Filter: New 29 Increased 41 Reduced 39 Sold out 14 Unchanged 26
Showing 100 of 141
All Common Calls Puts
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Holder Value (USD) % of 13F Shares Open
Mega STATE STREET CORP $25,385,340 13.97% 2,381,364
Mega STATE STREET CORP $25,385,340 13.97% 2,381,364
Mega BlackRock, Inc. $22,265,635 12.26% 2,088,709
Mega BNP PARIBAS ARBITRAGE, SA $15,072,930 8.30% 1,413,971
Mega VANGUARD CAPITAL MANAGEMENT LLC $14,647,010 8.06% 1,374,016
Mid EXCHANGE TRADED CONCEPTS, LLC $11,529,930 6.35% 1,081,607
Mega GEODE CAPITAL MANAGEMENT, LLC $7,716,261 4.25% 723,852
Large RENAISSANCE TECHNOLOGIES LLC $6,970,574 3.84% 653,900
Mega UBS Group AG $6,794,756 3.74% 637,407
Mega Nuveen, LLC $2,973,127 1.64% 278,905
Mega NORTHERN TRUST CORP Bank $2,693,470 1.48% 252,671
Mega MILLENNIUM MANAGEMENT LLC $2,506,197 1.38% 235,103
Mega VANGUARD FIDUCIARY TRUST CO Bank $2,423,881 1.33% 227,381
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $2,394,236 1.32% 224,600
Mid Tortoise Investment Management, LLC $2,301,888 1.27% 215,937
Mega MORGAN STANLEY $2,023,563 1.11% 189,828
Mega TWO SIGMA INVESTMENTS, LP $1,520,499 0.84% 142,636
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $1,504,126 0.83% 141,100
Large Balyasny Asset Management L.P. $1,332,286 0.73% 124,980
Large MARSHALL WACE, LLP $1,123,147 0.62% 105,361
Mega CITADEL ADVISORS LLC $1,118,234 0.62% 104,900
Mid BOOTHBAY FUND MANAGEMENT, LLC $978,747 0.54% 91,815
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $938,559 0.52% 88,045
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $915,224 0.50% 85,856
Mega CITADEL ADVISORS LLC $887,946 0.49% 83,297
Mid Geneos Wealth Management Inc. $770,003 0.42% 72,233
Mid Foundations Investment Advisors, LLC Endowment $750,293 0.41% 70,384
Small Tempo Wealth, LLC $728,749 0.40% 68,363
Small Themes Management Co LLC $699,807 0.39% 65,648
Mega Bank of New York Mellon Corp Bank $680,000 0.37% 63,790
Mega GOLDMAN SACHS GROUP INC $660,941 0.36% 62,002
Mega LPL Financial LLC $607,204 0.33% 56,961
Mega D. E. Shaw & Co., Inc. $591,799 0.33% 55,516
Small Pilgrim Partners Asia Pte Ltd $586,300 0.32% 55,000
Mega ROYAL BANK OF CANADA Bank $584,604 0.32% 54,841
Mid Inspire Investing, LLC $525,975 0.29% 49,341
Mega CITADEL ADVISORS LLC $515,944 0.28% 48,400
Large LOS ANGELES CAPITAL MANAGEMENT LLC $412,488 0.23% 38,695
Mid Virtu Financial LLC $387,320 0.21% 36,334
Mega WELLS FARGO & COMPANY/MN $384,590 0.21% 36,078
Mid IMC-Chicago, LLC $382,821 0.21% 35,912
Large JONES FINANCIAL COMPANIES LLLP $365,435 0.20% 34,281
Mega RHUMBLINE ADVISERS $343,614 0.19% 32,234
Large Universal- Beteiligungs- und Servicegesellschaft mbH $341,120 0.19% 32,000
Mid Graham Capital Management, L.P. $323,936 0.18% 30,388
Mega BANK OF AMERICA CORP /DE/ Bank $320,396 0.18% 30,056
Small DUDLEY CAPITAL MANAGEMENT, LLC $319,800 0.18% 30,000
Small TWO SIGMA SECURITIES, LLC Broker-Dealer $310,653 0.17% 29,142
Large Rathbones Group PLC $307,658 0.17% 28,861
Micro LeConte Wealth Management, LLC $287,105 0.16% 26,933
Large Cetera Investment Advisers $277,255 0.15% 26,009
Large Mariner, LLC $266,212 0.15% 24,973
Mega PRICE T ROWE ASSOCIATES INC /MD/ $259,741 0.14% 24,366
Mid Jump Financial, LLC $233,144 0.13% 21,871
Mid Belpointe Asset Management LLC $232,643 0.13% 21,824
Large Rockefeller Capital Management L.P. $230,959 0.13% 21,666
Mega DEUTSCHE BANK AG\ Bank $229,615 0.13% 21,540
Mid GROUP ONE TRADING LLC $225,810 0.12% 21,183
Mega ENVESTNET ASSET MANAGEMENT INC $206,931 0.11% 19,412
Mega AQR CAPITAL MANAGEMENT LLC $179,513 0.10% 16,840
Mid Chicago Partners Investment Group LLC $171,881 0.09% 16,124
Large MetLife Investment Management, LLC $165,112 0.09% 15,489
Large &PARTNERS $158,279 0.09% 14,848
Mega JANE STREET GROUP, LLC $157,768 0.09% 14,800
Mid EAGLE GLOBAL ADVISORS LLC $149,240 0.08% 14,000
Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Mutual Fund $146,489 0.08% 13,742
Mega WELLINGTON MANAGEMENT GROUP LLP $145,700 0.08% 13,668
Mega Invesco Ltd. $142,255 0.08% 13,345
Mega Vanguard Global Advisers, LLC $138,260 0.08% 12,970
Large Tidal Investments LLC $137,577 0.08% 12,906
Large Tidal Investments LLC $137,514 0.08% 12,900
Mega JPMORGAN CHASE & CO $137,001 0.08% 12,852
Mega RAYMOND JAMES FINANCIAL INC $131,288 0.07% 12,316
Mid Quadrature Capital Ltd $129,103 0.07% 12,111
Small Powell Investment Advisors, LLC $124,189 0.07% 11,650
Mid INTECH INVESTMENT MANAGEMENT LLC $123,346 0.07% 11,571
Large COMMONWEALTH EQUITY SERVICES, LLC $116,908 0.06% 10,967
Large Kestra Advisory Services, LLC $110,842 0.06% 10,398
Large SEI INVESTMENTS CO $107,037 0.06% 10,041
Large Police & Firemen's Retirement System of New Jersey Pension $85,791 0.05% 8,048
Large NewEdge Advisors, LLC $85,280 0.05% 8,000
Large NEW YORK STATE COMMON RETIREMENT FUND Pension $71,422 0.04% 6,700
Mid SIMPLEX TRADING, LLC $66,763 0.04% 6,263
Mega BARCLAYS PLC $62,574 0.03% 5,870
Mid Tower Research Capital LLC (TRC) $57,947 0.03% 5,436
Mid MEEDER ASSET MANAGEMENT INC $55,080 0.03% 5,167
Large Zurcher Kantonalbank (Zurich Cantonalbank) Bank $54,899 0.03% 5,150
Micro Stone House Investment Management, LLC $51,935 0.03% 4,872
Large CWM, LLC $48,236 0.03% 4,525
Large OSAIC HOLDINGS, INC. $46,860 0.03% 4,396
Mid TrinityBridge Ltd $44,772 0.02% 4,200
Small WOLFF WIESE MAGANA LLC $31,980 0.02% 3,000
Mid Advisory Services Network, LLC $31,383 0.02% 2,944
Mid SBI Securities Co., Ltd. Broker-Dealer $25,786 0.01% 2,419
Mega Legal & General Group Plc $25,488 0.01% 2,391
Micro CrossGen Wealth, LLC $21,682 0.01% 2,034
Mid Ameritas Investment Partners, Inc. $20,403 0.01% 1,914
Large Russell Investments Group, Ltd. $20,136 0.01% 1,889
Large NATIONAL BANK OF CANADA /FI/ Bank $18,655 0.01% 1,750
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $16,768 0.01% 1,573

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