Updated: May 18, 2026

John S Caldwell

PURADYN FILTER TECHNOLOGIES INCSEC CIK: 0001338006
Estimated Net Worth
$11.4 Million28.3%vs Last Year
Last Updated: May 18, 2026 04:15 PM EST

Transaction Summary

Total Transactions31
Buy-Sell Ratio1.42
Buy Transactions17
Sell Transactions12

Transaction Volume

Total Volume$2.73M
Net Volume-$2.18M
Buy Volume$273.58K
Sell Volume$2.46M

Trade Analysis

AVG Trade Size$88.06K
Largest Trade$946.99K
Most Active MonthAug
Most Active Year2015

Trading Sentiment

OverallBearish
Recent TradeSelling
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 S Caldwell has an estimated net worth of $11.4 Million. This is based on reported shares across multiple companies, which include TASER INTERNATIONAL INC, and PURADYN FILTER TECHNOLOGIES INC.



2014 was John S Caldwell's most active year for acquiring shares with 5 total transactions. John S Caldwell's most active month to acquire stocks was the month of July. 2014 was John S Caldwell's most active year for disposing of shares, totalling 5 transactions. John S Caldwell's most active month to dispose stocks was the month of July. 2014 saw John S Caldwell paying a total of $292,023.54 for 50,580 shares, this is the most they've acquired in one year. In 2015 John S Caldwell cashed out on 55,120 shares for a total of $860,313.60, their largest year based on trade value.

Holdings & Transactions

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