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Financial transparency data from public SEC filings.

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© 2026 DataHeimdall. All rights reserved.Data sourced from SEC EDGAR public filings.
Insider Trades

GTX

Superinvestors

Institutional investors holding GTX

Consensus →
InvestorFundWeightSharesValueQuarter
Howard MarksOaktree Capital Management4.22%14,594,816$265.2M2026Q1
Prem WatsaFairfax Financial Holdings0.17%184,460$3.4M2026Q1
Kahn Brothers GroupKahn Brothers Group0.02%12,318$103K2025Q1
Kenneth FisherFisher Asset Management0.00%17,455$60K2020Q3

Congressional Activity

Congressional data coming soon

Insider Activity

9

Total trades

$3.1M

Volume

5

Buys

4

Sells

Last trade: May 29, 2026

Insider Tradeslast 90 days

No insider trades in the last 90 days.

Congressional Tradeslast 90 days

Congressional trade data is being sourced and will appear here shortly.