Updated: May 19, 2026

Nelson Chai

TMOTHERMO FISHER SCIENTIFIC INC.SEC CIK: 0001299914
Estimated Net Worth
$66.3 Million
Last Updated: May 19, 2026 02:02 AM EST

Transaction Summary

Total Transactions140
Buy-Sell Ratio0.51
Buy Transactions44
Sell Transactions87

Transaction Volume

Total Volume$39.96M
Net Volume-$27.86M
Buy Volume$6.05M
Sell Volume$33.91M

Trade Analysis

AVG Trade Size$285.46K
Largest Trade$4.5M
Most Active MonthMay
Most Active Year2007

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

Nelson Chai has an estimated net worth of $66.3 Million. This is based on reported shares across multiple companies, which include Uber Technologies, Inc, ARCHIPELAGO HOLDINGS L L C, NYSE Group, Inc., THERMO FISHER SCIENTIFIC INC., NYSE Euronext, Inc., MERRILL LYNCH & CO INC, CIT GROUP INC, and Chubb Ltd.



2023 was Nelson Chai's most active year for acquiring shares with 29 total transactions. Nelson Chai's most active month to acquire stocks was the month of February. 2007 was Nelson Chai's most active year for disposing of shares, totalling 417 transactions. Nelson Chai's most active month to dispose stocks was the month of February. 2004 saw Nelson Chai paying a total of $805,000.00 for 70,000 shares, this is the most they've acquired in one year. In 2023 Nelson Chai cashed out on 202,116 shares for a total of $5,864,873.00, their largest year based on trade value.

Holdings & Transactions

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