Frances Arnold - Net Worth and Insider Trading

Frances Arnold Net Worth

The estimated net worth of Frances Arnold is at least $10 Million dollars as of 2026-09-13. Frances Arnold is the Director of Generate Biomedicines Inc and owns about 463,944 shares of Generate Biomedicines Inc (GENB) stock worth over $7 Million. Frances Arnold is the Director of Illumina Inc and owns about 9,954 shares of Illumina Inc (ILMN) stock worth over $2 Million. Frances Arnold is also the Director of Alphabet Inc and owns about 940 shares of Alphabet Inc (GOOGL) stock worth over $318,190. Besides these, Frances Arnold also holds Alphabet Inc (GOOG) . Details can be seen in Frances Arnold's Latest Holdings Summary section.

Disclaimer: The insider information is derived from SEC filings. The estimated net worth is based on the final shares held after open market or private purchases and sales of common stock with a transaction code of "P" or "S" on Form 4, assuming that Frances Arnold has not made any transactions after 2026-09-01 and currently still holds the listed stock(s). Please note that this estimate may not reflect the actual net worth.

Transaction Summary of Frances Arnold

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Frances Arnold Insider Ownership Reports

Based on ownership reports from SEC filings, as the reporting owner, Frances Arnold owns 4 companies in total, including Alphabet Inc (GOOG) , Illumina Inc (ILMN) , and Alphabet Inc (GOOGL) among others .

Click here to see the complete history of Frances Arnold’s form 4 insider trades.

Insider Ownership Summary of Frances Arnold

Ticker Company Transaction Date Type of Owner
GOOG Alphabet Inc 2024-04-30 director
ILMN Illumina Inc 2020-05-11 director
GOOGL Alphabet Inc 2026-08-28 director
LIMIT LIMIT 2026-09-01 director

Frances Arnold Latest Holdings Summary

Frances Arnold currently owns a total of 4 stocks. Among these stocks, Frances Arnold owns 463,944 shares of Generate Biomedicines Inc (GENB) as of September 1, 2026, with a value of $7 Million and a weighting of 75.15%. Frances Arnold owns 9,954 shares of Illumina Inc (ILMN) as of May 11, 2020, with a value of $2 Million and a weighting of 21.16%. Frances Arnold also owns 940 shares of Alphabet Inc (GOOGL) as of August 28, 2026, with a value of $318,190 and a weighting of 3.28%. The other 1 stocks Alphabet Inc (GOOG) have a combined weighting of 0.41% among all his current holdings.

Latest Holdings of Frances Arnold

Ticker Company Latest Transaction Date Shares Owned Current Price ($) Current Value ($)
GENB Generate Biomedicines Inc 2026-09-01 463,944 15.73 7,297,839
ILMN Illumina Inc 2020-05-11 9,954 206.45 2,055,003
GOOGL Alphabet Inc 2026-08-28 940 338.50 318,190
GOOG Alphabet Inc 2024-04-30 120 335.45 40,254

Holding Weightings of Frances Arnold


Frances Arnold Form 4 Trading Tracker

According to the SEC Form 4 filings, Frances Arnold has made a total of 1 transactions in Generate Biomedicines Inc (GENB) over the past 5 years, including 0 buys and 1 sells. The most-recent trade in Generate Biomedicines Inc is the sale of 1,000 shares on September 1, 2026, which brought Frances Arnold around $16,000.

According to the SEC Form 4 filings, Frances Arnold has made a total of 0 transactions in Illumina Inc (ILMN) over the past 5 years. The most-recent trade in Illumina Inc is the sale of 1,503 shares on May 11, 2020, which brought Frances Arnold around $464,592.

According to the SEC Form 4 filings, Frances Arnold has made a total of 24 transactions in Alphabet Inc (GOOGL) over the past 5 years, including 0 buys and 24 sells. The most-recent trade in Alphabet Inc is the sale of 82 shares on August 28, 2026, which brought Frances Arnold around $27,692.

More details on Frances Arnold's insider transactions can be found in the Insider Trading History of Frances Arnold table.

Insider Trading History of Frances Arnold

* The information on this page (including Insider Trading Shares, Share Changes, Cost, etc.) is sourced exclusively from Form 4 filings and does not incorporate any data from 13F or 13D/G filings. As a result, it may differ from the values shown on the Guru page.

No transactions are available. GuruFocus only tracks and displays the purchase and sale of non-derivative security in open market or private transactions from SEC filings with the transaction code of P or S.
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  • 1
Only the transactions in Open Market or Private Sale at the market prices are included. Other transactions such as conversion of derivative security or exercise of options are not included. Insiders are limited to only officers and/or directors of the company.

Frances Arnold Trading Performance

Please note GuruFocus will not track the insiders’ transaction performance if he/she does not have buying transactions.

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Frances Arnold Ownership Network

Ownership Network List of Frances Arnold

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Ownership Network Relation of Frances Arnold

Insider Network Chart


Frances Arnold Owned Company Details

What does Alphabet Inc do?

Who are the key executives at Alphabet Inc?

Frances Arnold is the director of Alphabet Inc. Other key executives at Alphabet Inc include director & Chief Executive Officer Sundar Pichai , SVP & CFO Ruth Porat , and director & 10 percent owner & Chief Executive Officer Lawrence Page .

Alphabet Inc (GOOG) Insider Trades Summary

In summary, during the past 3 months, insiders sold 0 shares of Alphabet Inc (GOOG) in total and bought 0 shares, with a net sale of 0 shares. During the past 18 months, 0 shares of Alphabet Inc (GOOG) were sold and 0 shares were bought by its insiders, resulting in a net sale of 0 shares.

Alphabet Inc (GOOG)'s detailed insider trading history can be found in Insider Trading Tracker table.

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Alphabet Inc Insider Transactions

No Available Data

Frances Arnold Mailing Address

Above is the net worth, insider trading, and ownership report for Frances Arnold. Based on the public information released on the U.S. Securities and Exchange Commission (SEC) website, Frances Arnold's mailing address is: San Diego Ca 92122.