LTBR
LIGHTBRIDGE CORPORATIONMarquee-fund ownership over time
This quarter's activity
New positions opened
Positions exited
None.
Current holders
Sorted by tenure (longest first)| Fund | First disclosed | Held | Entry price | Latest close | Return on entry |
|---|---|---|---|---|---|
| Renaissance Technologies re-entered | Q3 2024(8Q snapshot) | 7Q | $2.72 | $11 | +299% |
| Citadel Advisors re-entered | Q4 2024(8Q snapshot) | 6Q | $7.33 | $11 | +48% |
| Two Sigma Investments | Q1 2025(8Q snapshot) | 5Q | $14 | $11 | -20% |
| Millennium Management | Q2 2025(8Q snapshot) | 4Q | $11 | $11 | -1% |
| AQR Capital Management | Q1 2026(8Q snapshot) | 1Q | $13 | $11 | -18% |
| D.E. Shaw | Q2 2026(8Q snapshot) | 1Q | $11 | $11 | -5% |
“Return on entry” is the price-only move from the fund's first disclosure to today — it ignores any adds, trims, or dividends. A fund that built its position over multiple quarters has a true cost basis somewhere between entry price and latest close; this figure is the upper bound.
Insider activity
Form 4 — officers, directors, 10%+ ownersFiled within two business days of each transaction by anyone with material insider status at LIGHTBRIDGE Corp. Pair with the holders table above as a sanity check: heavy insider buying alongside marquee-fund accumulation is the strongest accumulation signal; heavy insider selling alongside fund exits is the strongest distribution signal.
30d / 90d windows measured from Apr 14, 2026 — the most recent Form 4 on file — not from today.
- Form 40000891839-26-000141Apr 14, 2026
- Form 40000891839-26-000140Apr 14, 2026
- Form 40000891839-26-000139Apr 14, 2026
- Form 40000891839-26-000042Jan 30, 2026
- Form 40000891839-26-000037Jan 16, 2026
- Form 40000891839-26-000032Jan 9, 2026
- Form 40000891839-26-000020Jan 6, 2026
- Form 40000891839-26-000015Jan 5, 2026
- Form 40000891839-26-000014Jan 5, 2026
- Form 40000891839-26-000013Jan 5, 2026
- Form 40000891839-26-000012Jan 5, 2026
- Form 40000891839-26-000011Jan 5, 2026
- Form 40000891839-25-000187Dec 16, 2025
- Form 40000891839-25-000186Dec 16, 2025
- Form 40000891839-25-000182Dec 16, 2025
Fundamentals
XBRL · LIGHTBRIDGE CORPORATIONAnnual figures sourced directly from LIGHTBRIDGE CORPORATION's 10-K / 10-Q filings via SEC EDGAR XBRL. Latest fiscal year and the year-over-year change, with up to ten years of history.
Recent SEC filings
10-K · 10-Q · 8-K · 13D/G · proxyThe most recent material filings for LIGHTBRIDGE Corp — earnings, material events, ownership disclosures, proxy statements. Form 4 insider activity is shown in the panel above.
- 8-KFORM 8-KMay 14, 2026
- 10-QFORM 10-QApr 30, 2026
- 8-KFORM 8-KApr 27, 2026
- DEF 14AProxy statementMar 31, 2026
- 10-KFORM 10-KFeb 26, 2026
- 8-KFORM 8-KFeb 25, 2026
- 10-QFORM 10-QNov 6, 2025
- 8-KFORM 8-KNov 5, 2025
- 8-KFORM 8-KSep 26, 2025
- 8-KFORM 8-KAug 29, 2025
- 10-QFORM 10-QAug 13, 2025
- 8-KFORM 8-KAug 11, 2025
- 8-KFORM 8-KJun 5, 2025
- S-3FORM S-3May 23, 2025
- 10-QFORM 10-QMay 12, 2025
Trade history
Every open→close lifecycle across tracked funds| Fund | Open date | Close date | Open price | Close price / current | Return |
|---|---|---|---|---|---|
| D.E. Shaw | Q2 2026 | open | $11 | $11 | -5% |
| AQR Capital Management | Q1 2026 | open | $13 | $11 | -18% |
| Renaissance Technologies | Q4 2025 | open | $18 | $11 | -40% |
| Citadel Advisors | Q2 2025 | open | $11 | $11 | -1% |
| Millennium Management | Q2 2025 | open | $11 | $11 | -1% |
| Two Sigma Investments | Q1 2025 | open | $14 | $11 | -20% |
| Citadel Advisors | Q4 2024 | Q1 2025 | $7.33 | $14 | +85% |
| Renaissance Technologies | Q3 2024 | Q3 2025 | $2.72 | $17 | +530% |
- Covers only the 27 marquee funds tracked here, not the full institutional universe. A “0 holders” reading does not mean unowned.
- Heavy funds (Renaissance Technologies, Citadel Advisors, Soros Fund Management, Two Sigma Investments, D.E. Shaw, AQR Capital Management, Millennium Management, Point72 Asset Management) use 8-quarter snapshots, so their pre-2024 history is missing.
- “Current” reflects each fund's most recent 13F — filings lag the actual trade by up to 45 days; positions shown may have changed since.
- Cost = price at the entry filing date. Re-entered positions show the most recent open lot.
- Options, ADRs, and unmapped CUSIPs are excluded from the follower-backtest pipeline that produces these snapshots, so certain holding types won't appear here.