Updated: May 19, 2026

Stephen W Webster

CGEMCullinan Therapeutics, Inc.SEC CIK: 0001438421
Estimated Net Worth
$6.72 Million
Last Updated: May 19, 2026 03:16 AM EST

Transaction Summary

Total Transactions73
Buy-Sell Ratio3.20
Buy Transactions48
Sell Transactions15

Transaction Volume

Total Volume$6.71M
Net Volume-$6.34M
Buy Volume$186.83K
Sell Volume$6.53M

Trade Analysis

AVG Trade Size$91.98K
Largest Trade$995.31K
Most Active MonthJun
Most Active Year2017

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

Stephen W Webster has an estimated net worth of $6.72 Million. This is based on reported shares across multiple companies, which include Nabriva Therapeutics Plc, Cullinan Therapeutics, Inc., Viking Therapeutics, Inc., Spark Therapeutics, Inc., Nabriva Therapeutics plc, TCR2 THERAPEUTICS INC., NextCure, Inc., OPTIMER PHARMACEUTICALS INC, ADOLOR CORP, HEARUSA INC, and Gritstone bio, Inc..



2017 was Stephen W Webster's most active year for acquiring shares with 12 total transactions. Stephen W Webster's most active month to acquire stocks was the month of May. 2017 was Stephen W Webster's most active year for disposing of shares, totalling 12 transactions. Stephen W Webster's most active month to dispose stocks was the month of November. 2011 saw Stephen W Webster paying a total of $218,800.00 for 153,750 shares, this is the most they've acquired in one year. In 2011 Stephen W Webster cashed out on 411,250 shares for a total of $1,195,312.50, their largest year based on trade value.

Holdings & Transactions

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