Updated: May 18, 2026

John C Martin

SRPTSarepta Therapeutics, Inc.SEC CIK: 0001190578
Estimated Net Worth
$1.23 Billion0.0%vs Last Year
Last Updated: May 18, 2026 02:59 PM EST

Transaction Summary

Total Transactions223
Buy-Sell Ratio0.41
Buy Transactions64
Sell Transactions156

Transaction Volume

Total Volume$1.02B
Net Volume-$883.45M
Buy Volume$68.92M
Sell Volume$952.37M

Trade Analysis

AVG Trade Size$4.58M
Largest Trade$25.34M
Most Active MonthJan
Most Active Year2009

Trading Sentiment

OverallBearish
Recent TradeBuying
Last 90 Days0 Trades
ConvictionNone

Net Worth & Trading Activity Over Time

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Monthly Trading Pattern

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Past Insider Trading and Trends

John C Martin has an estimated net worth of $1.23 Billion. This is based on reported shares across multiple companies, which include Sarepta Therapeutics, Inc., Kronos Bio, Inc., GILEAD SCIENCES INC, and GEN PROBE INC.



2007 was John C Martin's most active year for acquiring shares with 21 total transactions. John C Martin's most active month to acquire stocks was the month of January. 2007 was John C Martin's most active year for disposing of shares, totalling 102 transactions. John C Martin's most active month to dispose stocks was the month of October. 2015 saw John C Martin paying a total of $26,125,731.78 for 2,346,914 shares, this is the most they've acquired in one year. In 2015 John C Martin cashed out on 4,110,631 shares for a total of $215,978,097.45, their largest year based on trade value.

Holdings & Transactions

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