LIGHTBRIDGE CORP (LTBR): Ownership & Insider Activity
Hedge funds and institutional managers reporting a position in LTBR · Industrials. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
12
13F filers
Aggregate Value
$13.4M
Across holders
Last Price
$5.23
2026-10-20
Sector
Industrials
GICS
Quarterly fund activity6 increased5 reduced0 exited
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| MILLENNIUM MANAGEMENT LLC CIK 0001273087 | Hedge Fund | 699K | $6.1M | 45.9% | 0.0% | Added | +$4.1M | Q2 2026 |
| RENAISSANCE TECHNOLOGIES LLC CIK 0001037389 | Hedge Fund | 338K | $3.0M | 22.2% | 0.0% | Reduced | $-2.8M | Q2 2026 |
| SHAW D E & CO INC CIK 0001009207 | Hedge Fund | 167K | $1.5M | 10.9% | 0.0% | Added | +$925K | Q2 2026 |
| MARSHALL WACE, LLP CIK 0001318757 | Hedge Fund | 82K | $720K | 5.4% | 0.0% | Reduced | $-1.1M | Q2 2026 |
| AQR CAPITAL MANAGEMENT LLC CIK 0001167557 | Hedge Fund | 57K | $501K | 3.7% | 0.0% | Added | +$501K | Q2 2026 |
| BALYASNY ASSET MANAGEMENT LLC CIK 0001218710 | Hedge Fund | 42K | $366K | 2.7% | 0.0% | Reduced | $-733K | Q2 2026 |
| ExodusPoint Capital Management, LP CIK 0001736225 | Hedge Fund | 36K | $315K | 2.4% | 0.0% | Added | — | Q2 2026 |
| Rockefeller Capital Management L.P. CIK 0001739439 | Hedge Fund | 32K | $278K | 2.1% | 0.0% | Added | +$88K | Q2 2026 |
| TWO SIGMA INVESTMENTS, LP CIK 0001179392 | Hedge Fund | 26K | $233K | 1.7% | 0.0% | Reduced | $-1.0M | Q2 2026 |
| CITADEL ADVISORS LLC CIK 0001423053 | Hedge Fund | 25K | $221K | 1.7% | 0.0% | Reduced | $-701K | Q2 2026 |
Added
Hedge Fund
$6.1M· 45.9% of total· 0.0% port· 699K sh· +$4.1M QoQ· Q2 2026
Reduced
Hedge Fund
$3.0M· 22.2% of total· 0.0% port· 338K sh· $-2.8M QoQ· Q2 2026
Added
Hedge Fund
$1.5M· 10.9% of total· 0.0% port· 167K sh· +$925K QoQ· Q2 2026
Reduced
Hedge Fund
$720K· 5.4% of total· 0.0% port· 82K sh· $-1.1M QoQ· Q2 2026
Added
Hedge Fund
$501K· 3.7% of total· 0.0% port· 57K sh· +$501K QoQ· Q2 2026
Reduced
Hedge Fund
$366K· 2.7% of total· 0.0% port· 42K sh· $-733K QoQ· Q2 2026
Added
Hedge Fund
$315K· 2.4% of total· 0.0% port· 36K sh· — QoQ· Q2 2026
Added
Hedge Fund
$278K· 2.1% of total· 0.0% port· 32K sh· +$88K QoQ· Q2 2026
Reduced
Hedge Fund
$233K· 1.7% of total· 0.0% port· 26K sh· $-1.0M QoQ· Q2 2026
Reduced
Hedge Fund
$221K· 1.7% of total· 0.0% port· 25K sh· $-701K QoQ· Q2 2026
Added
Hedge Fund
$156K· 1.2% of total· 0.0% port· 18K sh· — QoQ· Q2 2026
Unchanged
Hedge Fund
$9K· 0.1% of total· 0.0% port· 1K sh· +$0 QoQ· Q2 2026
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Recent insider activity
Form 4 purchases and sales · 24 Jul 2026 – 21 Oct 20260 buyers · $01 sellers · $135K1 transactions
| Insider ⇅ | Trades ⇅ | Bought ⇅ | Sold ⇅ | Largest ⇅ | Latest ▼ | |
|---|---|---|---|---|---|---|
| Tobin Mark Robert Director | 1 0 buy · 1 sell | — | $135K | $135K | 11 Aug 2026SEC ↗ |
Distinct buyers and sellers may overlap. “Largest” is the largest reported transaction value in this window. Expand a row to see up to five recent filings.