LTBR · LIGHTBRIDGE Corp · Shareholders & Ownership

$5.39 +0.16 (+2.96%)

Russell 2000 member Rebalance outlook locked

Market Cap

$195.91M

37.46M

Volume · Oct 21 398.25K Avg daily vol (3M) 820.82K

Every disclosed holder of LTBR in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

How the holder list picks a filing →

Who Owns LTBR

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions

Holder group	Holders	Shares	% Out	Summed
Institutional (13F)	129	14,809,790	39.54%	Yes
Insiders (Forms 3, 4, 5)	9	2,360,949	6.30%	Yes
13D/G-only blocks	1	1,177,380	3.14%	Yes
Remaining	—	19,109,972	51.02%	Rest
Registered funds (N-PORT, not summed)	106	10,129,825	27.04%	No

Shares outstanding: 37,458,091, the issuer's latest cover-page count restated onto today's split basis.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of LTBR

One row per holder Every filing By ultimate parent

All 13F Funds Insiders 13D/G Non-US

#	Holder	Shares	% Out	Change	As of	Notes
1	STATE STREET CORP 13F CIK 93751 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	2,829,502	7.55%	+448,138	Jun 30, 2026	carried, not yet filed for the newest quarter
1.1	STATE STREET CORP 13G CIK 93751 · Bank · Jun 30, 2026 Rule 13d-1(b), qualified institution, not summed	2,829,502	7.55%	+448,138	Jun 30, 2026	Rule 13d-1(b), qualified institution, not summed
1.2	State Street(R) SPDR(R) S&P(R) Metals & Mining ETF Fund S000012333 · Registered fund · Jun 30, 2026 SPDR SERIES TRUST, not summed	2,201,004	5.88%	+382,814	Jun 30, 2026	SPDR SERIES TRUST, not summed
1.3	STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO Fund S000050332 · Registered fund · Jun 30, 2026 STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed	10,200	0.03%	0	Jun 30, 2026	STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
1.4	State Street Total Return V.I.S. Fund Fund S000001637 · Registered fund · Jun 30, 2026 STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed	865	0.00%	+99	Jun 30, 2026	STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed
1.5	State Street Balanced Index Fund Fund S000082802 · Registered fund · Jun 30, 2026 STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed	203	0.00%	0	Jun 30, 2026	STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
2	BlackRock, Inc. 13F CIK 2012383 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	2,568,869	6.86%	+480,160	Jun 30, 2026	carried, not yet filed for the newest quarter
2.1	BlackRock, Inc. 13G CIK 2012383 · Holding company · Jun 30, 2026 Rule 13d-1(b), qualified institution, not summed	2,544,546	6.79%	+545,984	Jun 30, 2026	Rule 13d-1(b), qualified institution, not summed
2.2	iShares Russell 2000 ETF Fund S000004344 · Registered fund · Jun 30, 2026 iShares Trust, not summed	887,759	2.37%	+177,655	Jun 30, 2026	iShares Trust, not summed
2.3	iShares Russell 2000 Value ETF Fund S000004342 · Registered fund · Jun 30, 2026 iShares Trust, not summed	256,543	0.68%	—	Jun 30, 2026	iShares Trust, not summed
2.4	iShares Micro-Cap ETF Fund S000004439 · Registered fund · Jun 30, 2026 iShares Trust, not summed	115,294	0.31%	+41,532	Jun 30, 2026	iShares Trust, not summed
2.5	iShares Russell 2000 Growth ETF Fund S000004343 · Registered fund · Jun 30, 2026 iShares Trust, not summed	74,870	0.20%	-163,469	Jun 30, 2026	iShares Trust, not summed
3	VANGUARD CAPITAL MANAGEMENT LLC 13F CIK 2100119 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,495,408	3.99%	+121,392	Jun 30, 2026	carried, not yet filed for the newest quarter
4	AK Jensen Investment Management Limited 13G CIK 1962663 · Non-US institution · Sep 30, 2025 Rule 13d-1(b), qualified institution	1,177,380	3.14%	-33,024	Sep 30, 2025	Rule 13d-1(b), qualified institution
5	EXCHANGE TRADED CONCEPTS, LLC 13F CIK 1457320 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,117,253	2.98%	+35,646	Jun 30, 2026	carried, not yet filed for the newest quarter
5.1	Range Nuclear Renaissance Index ETF Fund S000083243 · Registered fund · May 31, 2026 EXCHANGE TRADED CONCEPTS TRUST, not summed	1,122,737	3.00%	+257,937	May 31, 2026	EXCHANGE TRADED CONCEPTS TRUST, not summed
6	VANGUARD TOTAL STOCK MARKET INDEX FUND Fund S000002848 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	1,074,058	2.87%	+107,900	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
7	GEODE CAPITAL MANAGEMENT, LLC 13F CIK 1214717 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	876,816	2.34%	+152,964	Jun 30, 2026	carried, not yet filed for the newest quarter
8	GRAE SETH Insider CIK 1357549 · Aug 28, 2026 Director, President and CEO, issuer-wide	872,084	2.33%	-10,930	Aug 28, 2026	Director, President and CEO, issuer-wide
9	MILLENNIUM MANAGEMENT LLC 13F CIK 1273087 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	698,893	1.87%	+463,790	Jun 30, 2026	carried, not yet filed for the newest quarter
10	UBS Group AG 13F CIK 1610520 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	542,466	1.45%	-94,941	Jun 30, 2026	carried, not yet filed for the newest quarter
11	BNP PARIBAS ARBITRAGE, SA 13F CIK 1166588 · Non-US institution · Jun 30, 2026 carried, not yet filed for the newest quarter	471,868	1.26%	-942,103	Jun 30, 2026	carried, not yet filed for the newest quarter
12	MUSHAKOV ANDREY Insider CIK 1371007 · Aug 28, 2026 EVP, Nuclear Operations, issuer-wide	457,668	1.22%	-6,817	Aug 28, 2026	EVP, Nuclear Operations, issuer-wide
13	VANGUARD EXTENDED MARKET INDEX FUND Fund S000002841 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	385,926	1.03%	+13,728	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
14	GOLDMAN LARRY Insider CIK 1305758 · Aug 28, 2026 Director, issuer-wide	377,688	1.01%	-7,139	Aug 28, 2026	Director, issuer-wide
15	RENAISSANCE TECHNOLOGIES LLC 13F CIK 1037389 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	338,400	0.90%	-315,500	Jun 30, 2026	carried, not yet filed for the newest quarter
16	Holcombe Scott Randall Insider CIK 2146259 · Aug 28, 2026 SVP & Chief Technology Officer, issuer-wide	321,870	0.86%	-3,833	Aug 28, 2026	SVP & Chief Technology Officer, issuer-wide
17	NORTHERN TRUST CORP 13F CIK 73124 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	293,415	0.78%	+40,744	Jun 30, 2026	carried, not yet filed for the newest quarter
17.1	Small Cap Index Fund Fund S000001245 · Registered fund · Jun 30, 2026 Northern Funds, not summed	17,780	0.05%	+3,106	Jun 30, 2026	Northern Funds, not summed
18	Pacer Data & Infrastructure Real Estate ETF Fund S000061573 · Registered fund · Jul 31, 2026 Pacer Funds Trust, not summed	232,377	0.62%	+65,745	Jul 31, 2026	Pacer Funds Trust, not summed
19	Pacer Advisors, Inc. 13F CIK 1616667 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	231,409	0.62%	+66,957	Jun 30, 2026	carried, not yet filed for the newest quarter
20	VANGUARD PORTFOLIO MANAGEMENT LLC 13F CIK 2100121 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	230,475	0.62%	+15,475	Jun 30, 2026	carried, not yet filed for the newest quarter
21	VANGUARD FIDUCIARY TRUST CO 13F CIK 933478 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	221,640	0.59%	-5,741	Jun 30, 2026	carried, not yet filed for the newest quarter
22	Tortoise Investment Management, LLC 13F CIK 1599511 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	215,937	0.58%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
23	D. E. Shaw & Co., Inc. 13F CIK 1009207 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	166,514	0.44%	+110,998	Jun 30, 2026	carried, not yet filed for the newest quarter
24	VANGUARD RUSSELL 2000 INDEX FUND Fund S000030003 · Registered fund · May 31, 2026 VANGUARD SCOTTSDALE FUNDS, not summed	150,060	0.40%	+17,051	May 31, 2026	VANGUARD SCOTTSDALE FUNDS, not summed
25	Trexquant Investment LP 13F CIK 1633445 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	108,962	0.29%	+108,962	Jun 30, 2026	carried, not yet filed for the newest quarter
26	CHARLES SCHWAB INVESTMENT MANAGEMENT INC 13F CIK 884546 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	105,016	0.28%	+19,160	Jun 30, 2026	carried, not yet filed for the newest quarter
26.1	Schwab Small-Cap Index Fund Fund S000005912 · Registered fund · Jul 31, 2026 SCHWAB CAPITAL TRUST, not summed	83,432	0.22%	+19,142	Jul 31, 2026	SCHWAB CAPITAL TRUST, not summed
26.2	Schwab Total Stock Market Index Fund Fund S000005913 · Registered fund · Jul 31, 2026 SCHWAB CAPITAL TRUST, not summed	21,562	0.06%	0	Jul 31, 2026	SCHWAB CAPITAL TRUST, not summed
27	SUSQUEHANNA INTERNATIONAL GROUP, LLP 13F CIK 1446194 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	95,654	0.26%	+7,609	Jun 30, 2026	carried, not yet filed for the newest quarter
28	MORGAN STANLEY 13F CIK 895421 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	89,863	0.24%	-99,965	Jun 30, 2026	carried, not yet filed for the newest quarter
29	Bank of New York Mellon Corp 13F CIK 1390777 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	85,502	0.23%	+21,712	Jun 30, 2026	carried, not yet filed for the newest quarter
30	Themes Management Co LLC 13F CIK 2107564 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	84,792	0.23%	+19,144	Jun 30, 2026	carried, not yet filed for the newest quarter
31	Themes Uranium & Nuclear ETF Fund S000085492 · Registered fund · Jun 30, 2026 Themes ETF Trust, not summed	84,792	0.23%	+19,144	Jun 30, 2026	Themes ETF Trust, not summed
32	Funches Jesse L. Insider CIK 1874150 · Aug 6, 2026 Director, issuer-wide	84,022	0.22%	+10,000	Aug 6, 2026	Director, issuer-wide
33	Nuveen, LLC 13F CIK 1871926 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	82,480	0.22%	-196,425	Jun 30, 2026	carried, not yet filed for the newest quarter
33.1	Nuveen Small Cap Blend Index Fund Fund S000005367 · Registered fund · Jul 31, 2026 TIAA-CREF Funds, not summed	45,409	0.12%	+12,979	Jul 31, 2026	TIAA-CREF Funds, not summed
33.2	Nuveen Equity Index Fund Fund S000005360 · Registered fund · Jul 31, 2026 TIAA-CREF Funds, not summed	7,511	0.02%	0	Jul 31, 2026	TIAA-CREF Funds, not summed
34	MARSHALL WACE, LLP 13F CIK 1318757 · Exempt reporting adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	81,875	0.22%	-23,486	Jun 30, 2026	carried, not yet filed for the newest quarter
35	Inspire Investing, LLC 13F CIK 1670139 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	77,447	0.21%	+28,106	Jun 30, 2026	carried, not yet filed for the newest quarter
35.1	Inspire Small/Mid Cap ETF Fund S000056118 · Registered fund · May 31, 2026 Northern Lights Fund Trust IV, not summed	51,543	0.14%	+12,910	May 31, 2026	Northern Lights Fund Trust IV, not summed
36	Geneos Wealth Management Inc. 13F CIK 1764754 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	72,683	0.19%	+450	Jun 30, 2026	carried, not yet filed for the newest quarter
37	Foundations Investment Advisors, LLC 13F CIK 1743404 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	70,384	0.19%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
38	Goodman Sherri Insider CIK 1969973 · Oct 1, 2026 Director, issuer-wide	69,130	0.18%	-1,116	Oct 1, 2026	Director, issuer-wide
39	Tobin Mark Robert Insider CIK 1641799 · Aug 11, 2026 Director, issuer-wide	66,669	0.18%	-15,000	Aug 11, 2026	Director, issuer-wide
40	BOOTHBAY FUND MANAGEMENT, LLC 13F CIK 1549230 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	64,839	0.17%	-26,976	Jun 30, 2026	carried, not yet filed for the newest quarter
41	Schear Investment Advisers, LLC 13F CIK 1962838 · Unknown · Sep 30, 2026	62,376	0.17%	+62,376	Sep 30, 2026
42	Tempo Wealth, LLC 13F CIK 2112005 · Unknown · Sep 30, 2026	62,376	0.17%	-1,382	Sep 30, 2026
43	Chakraborty Sweta Insider CIK 1885308 · Sep 1, 2026 Director, issuer-wide	57,132	0.15%	-717	Sep 1, 2026	Director, issuer-wide
44	AQR CAPITAL MANAGEMENT LLC 13F CIK 1167557 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	57,045	0.15%	+40,205	Jun 30, 2026	carried, not yet filed for the newest quarter
44.1	AQR Small Cap Momentum Style Fund Fund S000025644 · Registered fund · Mar 31, 2026 AQR Funds, not summed	7,210	0.02%	—	Mar 31, 2026	AQR Funds, not summed
45	MAGRAW DANIEL B Insider CIK 1379756 · Aug 6, 2026 Director, issuer-wide	54,686	0.15%	+10,000	Aug 6, 2026	Director, issuer-wide
46	JONES FINANCIAL COMPANIES LLLP 13F CIK 815917 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	51,004	0.14%	+16,723	Jun 30, 2026	carried, not yet filed for the newest quarter
47	Atom Investors LP 13F CIK 1738902 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	48,975	0.13%	+48,975	Jun 30, 2026	carried, not yet filed for the newest quarter
48	BANK OF AMERICA CORP /DE/ 13F CIK 70858 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	43,505	0.12%	+13,449	Jun 30, 2026	carried, not yet filed for the newest quarter
49	WELLS FARGO & COMPANY/MN 13F CIK 72971 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	43,032	0.11%	+6,954	Jun 30, 2026	carried, not yet filed for the newest quarter
50	RHUMBLINE ADVISERS 13F CIK 1115418 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	42,022	0.11%	+9,788	Jun 30, 2026	carried, not yet filed for the newest quarter

6 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 203 holders

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