Comparable stake leader
STATE STREET CORP
SEC ownership of LIGHTBRIDGE Corp
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001084554.
Disclosed value leader
STATE STREET CORP
Comparable rows
50/50
Latest evidence
31 Mar 2026
- Public ticker
- LTBR on Nasdaq
- Parsed ownership sources
-
13D/G, 13F, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
STATE STREET CORP
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
STATE STREET CORP
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
31 Mar 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001084554
- Issuer location
- Reston, VA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of LIGHTBRIDGE Corp (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
STATE STREET CORP
Disclosed value leader
STATE STREET CORP
Comparable rows
50/50
Latest evidence
31 Mar 2026
13D/G
13F
3/4/5
Lead comparable stake: 6.9%
13D/G row: STATE STREET CORP
Showing 1-8 of 50 holder rows.
Quick read
STATE STREET CORP leads the comparable SEC ownership view at 6.9%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens STATE STREET CORP's linked filing trail.
Comparable ownership
Top 5
STATE STREET CORP
6.9%
BlackRock, Inc.
6.2%
AK Jensen Investment Management Ltd
3.9%
MILLENNIUM MANAGEMENT LLC
2.8%
Jesse L. Funches
0.21%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| STATE STREET CORP |
13D/G
13F
STATE STREET CORPORATION · Company
|
6.9%
|
$27,290,431
2,381,364 shares
|
+$6,116,236 | 31 Mar 2026 |
| BlackRock, Inc. |
13D/G
13F
Company
|
6.2%
|
$25,261,824
1,998,562 shares
|
$0 | 31 Dec 2025 |
| AK Jensen Investment Management Ltd |
13D/G
3/4/5
10%+ Owner
|
3.9%
|
$24,972,230
1,177,380 shares
|
-$700,439 | 30 Sep 2025 |
| MILLENNIUM MANAGEMENT LLC |
13D/G
13F
Company
|
2.8%
|
$8,692,880
650,178 shares
|
-$6,673,742 | 30 Jun 2025 |
| Jesse L. Funches |
3/4/5
Director
|
0.21%
|
$1,255,279
74,022 shares
|
-$57,399 | 09 Jan 2026 |
| Mark R. Tobin |
3/4/5
Director
|
0.21%
|
$1,223,389
71,669 shares
|
-$42,630 | 02 Jan 2026 |
| Sherri Goodman |
3/4/5
Director
|
0.18%
|
$1,066,499
62,478 shares
|
— | 02 Jan 2026 |
| Sweta Chakraborty |
3/4/5
Director
|
0.14%
|
$768,062
48,992 shares
|
-$553,479 | 06 Jan 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$4,662,729.
Buys
$0
Insiders: 0
Sells
$4,662,729
Insiders: 6
Net
-$4,662,729
Shares: -224,777
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 224,777
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 49,250 | $0 | $810,305 | -$810,305 |
| 6-9 | 0 | 124,297 | $0 | $3,014,218 | -$3,014,218 |
| 9-12 | 0 | 51,230 | $0 | $838,205 | -$838,205 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-11 of 11 reporting-owner rows connected to LIGHTBRIDGE Corp. Open a relationship link for the CIK-to-CIK filing trail.
Rows
11
Largest Forms 3/4/5 holder
AK Jensen Investment Management Ltd
Net 12M change
-$4,662,729
Latest report
03 Apr 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| AK Jensen Investment Management Ltd | 10%+ Owner | $9,748,968 | Mixed | 11 Jan 2023 | ||
| Seth Grae | President and CEO, Director | $8,482,455 | -$1,639,152 | -16% | Mixed | 03 Apr 2026 |
| Andrey Mushakov | EVP, Nuclear Operations | $4,174,423 | -$1,483,509 | -26% | Mixed | 03 Apr 2026 |
| Larry Goldman | Cfo | $3,454,886 | -$886,560 | -20% | Mixed | 03 Apr 2026 |
| Jesse L. Funches | Director | $1,255,279 | -$57,399 | -4.4% | Filing P/S | 09 Jan 2026 |
| Mark R. Tobin | Director | $1,223,389 | -$42,630 | -3.4% | Mixed | 02 Jan 2026 |
| Sherri Goodman | Director | $1,066,499 | Mixed | 02 Jan 2026 | ||
| Daniel B. Magraw | Director | $825,710 | Mixed | 02 Jan 2026 | ||
| Sweta Chakraborty | Director | $768,062 | -$553,479 | -42% | Filing P/S | 06 Jan 2026 |
| Thomas Graham Jr. | Director | $108,263 | Mixed | 20 Nov 2023 | ||
| Victor E. Alessi | Director | $29,901 | Mixed | 18 Nov 2021 |
Recent insider transactions for LIGHTBRIDGE Corp
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Larry Goldman | LTBR | Common Stock | Tax liability | -2.74% | -9,013 | 319,827 | 03 Apr 2026 | Direct | ||
| Andrey Mushakov | LTBR | Common Stock | Tax liability | -2.21% | -8,597 | 380,485 | 03 Apr 2026 | Direct | ||
| Seth Grae | LTBR | Common Stock | Tax liability | -1.68% | -13,256 | 778,014 | 03 Apr 2026 | Direct | ||
| Andrey Mushakov | LTBR | Common Stock | Sale | -7.22% | $502,015 | $16.57 | -30,289 | 389,082 | 29 Jan 2026 | Direct |
| Larry Goldman | LTBR | Common Stock | Sale | -1.89% | $114,741 | $18.07 | -6,350 | 328,840 | 15 Jan 2026 | Direct |
| Larry Goldman | LTBR | Common Stock | Sale | -0.75% | $45,342 | $18.00 | -2,519 | 335,190 | 14 Jan 2026 | Direct |
| Jesse L. Funches | LTBR | Common Stock | Sale | -1.92% | $24,572 | $16.96 | -1,449 | 74,022 | 09 Jan 2026 | Direct |
| Sweta Chakraborty | LTBR | Common Stock | Sale | -2.48% | $19,518 | $15.68 | -1,245 | 48,992 | 06 Jan 2026 | Direct |
| Sweta Chakraborty | LTBR | Common Stock | Award | 26.8% | 10,631 | 50,237 | 02 Jan 2026 | Direct | ||
| Sweta Chakraborty | LTBR | Common Stock | Sale | -4.69% | $25,077 | $12.88 | -1,947 | 39,606 | 02 Jan 2026 | Direct |
| Mark R. Tobin | LTBR | Common Stock | Award | 17.4% | 10,631 | 71,669 | 02 Jan 2026 | Direct | ||
| Daniel B. Magraw | LTBR | Common Stock | Award | 31.2% | 10,631 | 44,686 | 02 Jan 2026 | Direct | ||
| Sherri Goodman | LTBR | Common Stock | Award | 20.5% | 10,631 | 62,478 | 02 Jan 2026 | Direct | ||
| Jesse L. Funches | LTBR | Common Stock | Award | 16.4% | 10,631 | 75,471 | 02 Jan 2026 | Direct | ||
| Larry Goldman | LTBR | Common Stock | Sale | -1.59% | $79,040 | $14.50 | -5,451 | 337,709 | 16 Dec 2025 | Direct |
| Larry Goldman | LTBR | Common Stock | Tax liability | -2.41% | -8,487 | 343,160 | 15 Dec 2025 | Direct | ||
| Andrey Mushakov | LTBR | Common Stock | Tax liability | -1.9% | -8,104 | 419,371 | 15 Dec 2025 | Direct | ||
| Seth Grae | LTBR | Common Stock | Tax liability | -1.62% | -12,993 | 791,270 | 15 Dec 2025 | Direct | ||
| Larry Goldman | LTBR | Common Stock | Sale | -2.23% | $140,525 | $17.50 | -8,030 | 351,647 | 05 Dec 2025 | Direct |
| Larry Goldman | LTBR | Common Stock | Tax liability | -3.36% | -12,500 | 359,677 | 04 Dec 2025 | Direct | ||
| Andrey Mushakov | LTBR | Common Stock | Tax liability | -2.72% | -11,936 | 427,475 | 04 Dec 2025 | Direct | ||
| Seth Grae | LTBR | Common Stock | Tax liability | -2.32% | -19,137 | 804,263 | 04 Dec 2025 | Direct | ||
| Andrey Mushakov | LTBR | Common Stock | Award | 13% | 50,442 | 439,411 | 01 Dec 2025 | Direct | ||
| Sweta Chakraborty | LTBR | Common Stock | Sale | -4.48% | $30,134 | $15.47 | -1,948 | 41,553 | 01 Dec 2025 | Direct |
| Larry Goldman | LTBR | Common Stock | Award | 14.3% | 46,666 | 372,177 | 01 Dec 2025 | Direct | ||
| Seth Grae | LTBR | Common Stock | Award | 10.9% | 80,875 | 823,400 | 01 Dec 2025 | Direct | ||
| Larry Goldman | LTBR | Common Stock | Sale | -1.37% | $68,901 | $15.22 | -4,527 | 325,511 | 20 Nov 2025 | Direct |
| Larry Goldman | LTBR | Common Stock | Tax liability | -2.09% | -7,048 | 330,038 | 20 Nov 2025 | Direct | ||
| Andrey Mushakov | LTBR | Common Stock | Tax liability | -1.7% | -6,730 | 388,969 | 20 Nov 2025 | Direct | ||
| Seth Grae | LTBR | Common Stock | Tax liability | -1.43% | -10,791 | 742,525 | 20 Nov 2025 | Direct | ||
| Sweta Chakraborty | LTBR | Common Stock | Sale | -4.29% | $52,070 | $26.73 | -1,948 | 43,501 | 03 Nov 2025 | Direct |
| Seth Grae | LTBR | Common Stock | Sale | -4.11% | $906,549 | $28.07 | -32,296 | 753,316 | 15 Oct 2025 | Direct |
| Seth Grae | LTBR | Common Stock | Options Exercise | 4.29% | 32,296 | 785,612 | 15 Oct 2025 | Direct | ||
| Seth Grae | LTBR | Employee Stock Option (right to buy) | Options Exercise | -80.3% | -32,296 | 7,937 | 15 Oct 2025 | Direct | ||
| Seth Grae | LTBR | Common Stock | Sale | -2.66% | $535,806 | $26.01 | -20,600 | 753,316 | 13 Oct 2025 | Direct |
| Seth Grae | LTBR | Common Stock | Options Exercise | 2.73% | 20,600 | 773,916 | 13 Oct 2025 | Direct | ||
| Seth Grae | LTBR | Employee Stock Option (right to buy) | Options Exercise | -100% | -20,600 | 0 | 13 Oct 2025 | Direct | ||
| Seth Grae | LTBR | Common Stock | Sale | -1% | $196,797 | $25.84 | -7,616 | 753,316 | 10 Oct 2025 | Direct |
| Seth Grae | LTBR | Common Stock | Options Exercise | 1.01% | 7,616 | 760,932 | 10 Oct 2025 | Direct | ||
| Seth Grae | LTBR | Employee Stock Option (right to buy) | Options Exercise | -27% | -7,616 | 20,600 | 10 Oct 2025 | Direct | ||
| Andrey Mushakov | LTBR | Common Stock | Sale | -5.96% | $628,831 | $25.06 | -25,093 | 395,699 | 10 Oct 2025 | Direct |
| Andrey Mushakov | LTBR | Common Stock | Options Exercise | 6.34% | 25,093 | 420,792 | 10 Oct 2025 | Direct | ||
| Andrey Mushakov | LTBR | Employee Stock Option (right to buy) | Options Exercise | -100% | -25,093 | 0 | 10 Oct 2025 | Direct | ||
| Sweta Chakraborty | LTBR | Common Stock | Sale | -2.67% | $28,521 | $22.89 | -1,246 | 45,449 | 08 Oct 2025 | Direct |
| Jesse L. Funches | LTBR | Common Stock | Sale | -2.18% | $32,826 | $22.67 | -1,448 | 64,840 | 07 Oct 2025 | Direct |
| Sweta Chakraborty | LTBR | Common Stock | Sale | -4% | $40,595 | $20.85 | -1,947 | 46,695 | 01 Oct 2025 | Direct |
| Andrey Mushakov | LTBR | Common Stock | Sale | -4.26% | $352,664 | $20.04 | -17,598 | 395,699 | 22 Sep 2025 | Direct |
| Andrey Mushakov | LTBR | Common Stock | Options Exercise | 4.45% | 17,598 | 413,297 | 22 Sep 2025 | Direct | ||
| Andrey Mushakov | LTBR | Employee Stock Option (right to buy) | Options Exercise | -100% | -17,598 | 0 | 22 Sep 2025 | Direct | ||
| Mark R. Tobin | LTBR | Common Stock | Sale | -4.68% | $42,630 | $14.21 | -3,000 | 61,038 | 02 Sep 2025 | Direct |
* marks a reported price that did not pass the local price check.