Insider Trading & Ownership of Mark R. Tobin
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Location
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Reston, VA
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Summary
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The estimated net worth of Mark R. Tobin is at least $1,223,389 dollars as of 05 Jan 2026. Mark R. Tobin is the Director of LIGHTBRIDGE Corp and owns shares of LIGHTBRIDGE Corp (LTBR) stock worth about $1.22M.
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Signature
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/s/ Larry Goldman, Attorney-in-Fact for Mark R. Tobin
Follow Filing Activity
Follow Mark R. Tobin and return when a new Insider Trading filing appears.
This tracks SEC filing changes for this page using existing product update flows.
Quick Takeaways
- Mark R. Tobin has 1 issuer position tracked on this page.
- Estimated disclosed ownership value: $1,223,389.
- Recent insider filing activity is available below.
What Changed
- Largest disclosed position: LIGHTBRIDGE Corp ($1,223,389).
- Past-year value change for that position: -$88,890.
Why This Matters
- This page translates Forms 3/4/5 into a quick ownership context before you inspect each transaction row.
- You can cross-check role, issuer, and filing chronology directly against the SEC source.
Official SEC Source
Filed on Form 4
Insider ownership context is sourced from SEC Forms 3, 4, and 5.
See Original Filing
Continue ownership research
Ownership of Mark R. Tobin
| Symbol |
Company |
Relationship |
Holdings Value |
Past Year Net Change |
Change % |
Report Period |
| LTBR |
LIGHTBRIDGE Corp |
Director |
$1,223,389 |
-$88,890 |
-6.8% |
02 Jan 2026 |
Insider Transactions Reported by Mark R. Tobin:
| Sym |
Company |
Class |
Transaction |
% |
Value $ |
* Price $ |
Shares |
Shares After |
Date |
Ownership |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.