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Lewis Williams Insider Profile
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Lewis Williams, Director at Five Prime Therapeutics, holds 7.83K shares in Protagonist Therapeutics (Ticker: PTGX), holds 2.10M shares in Arcellx Inc (Ticker: ACLX), holds 455.34K shares in Five Prime Therapeutics (Ticker: FPRX).
Lewis Williams Five Prime Therapeutics (FPRX)Director
Five Prime Therapeutics (FPRX)
Director
Not Ranked
Lewis Williams has not reported sufficient informative transactions and therefore cannot be ranked.
Time Frame
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Insider Holdings
Insider Roles
Roles that Lewis Williams holds in companies
Most Profitable Insider Trade
Currently, no data available
The most profitable trade made by Lewis Williams
Lewis Williams's Trading History
Five Prime Therapeutics
Sep 04, 2019
―
Uninformative Sell
38.14K
$17.30M
Protagonist Therapeutics
Feb 18, 2026
Director
Uninformative Buy
195.12K
$715.28K
Neurogene
―
Director
―
―
Arcellx Inc
Feb 09, 2022
Director
Uninformative Buy
―
$239.60M
List of latest transactions for each holding click on a transaction to see Lewis Williams's performance on stock
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Lewis Williams insider profile FAQ
What is the percentage of profitable transactions made by Lewis Williams?
The percentage of profitable transactions made by Lewis Williams is ―.
What is the average return per transaction made by Lewis Williams?
The average return per transaction made by Lewis Williams is ―.
What stocks does Lewis Williams hold?
Lewis Williams holds: FPRX, PTGX, NGNE, ACLX stocks.
What was Lewis Williams’s latest transaction?
Lewis Williams latest transaction was an Uninformative Buy of $195.12K.
What was Lewis Williams's most profitable transaction?
Lewis Williams’s most profitable transaction was an Uninformative Buy of stock on ―. The return on the trade was ―.
What is Lewis Williams's role in Five Prime Therapeutics?
Lewis Williams's role in Five Prime Therapeutics is Director.
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