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John Smither Insider Profile

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John Smither, CFO at Kythera, holds 91.40K shares in Genelux Corp. (Ticker: GNLX), holds 10.36K shares in NewAmsterdam Pharma Company (Ticker: NAMS), holds 152.76K shares in Arcutis Biotherapeutics (Ticker: ARQT). Most recently, John Smither Sold ― shares of Genelux Corp. on Jul 02, 2026 for an estimated value of $34.80K.
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John Smither

John Smither
Kythera (KYTH)
CFO

Ranked #20,655 out of 108,198 Corporate Insiders

Profitable Transactions

56%
5 out of 9 Profitable Transactions

Average Return

+9.40%
Average return per transaction
Time Frame
1 Year
Compare to
No Benchmark

Insider Holdings

$5M
87.06%
7.25%
5.69%
0.01%
0.00% Others
A breakdown of John Smither's holdings

Insider Roles

Arcutis Biotherapeutics
(ARQT)
CFO
NewAmsterdam Pharma Company
(NAMS)
Director
Genelux Corp.
(GNLX)
Director
eFFECTOR Therapeutics
(EFTR)
Director
+1 other positions
Roles that John Smither holds in companies

Most Profitable Insider Trade

Stock:
Genelux Corp.
(GNLX)
Rating:Informative Sell
Date:Sep 14, 2023 - Sep 14, 2024
Return:+88.90%
The most profitable trade made by John Smither

John Smither's Trading History

Company Name
Last Transaction Date
Insider Position
Last Transaction
Last Transaction Amount
Holding Value
KYTH
Kythera
Oct 02, 2015
Uninformative Sell
$0.00
Sienna Biopharmaceuticals
Jan 03, 2019
CFO
Uninformative Buy
PRNB
Principia Biopharma
Arcutis Biotherapeutics
Feb 15, 2024
CFO
Uninformative Buy
$4.14M
eFFECTOR Therapeutics
Aug 27, 2021
Director
Uninformative Buy
$482.84
AMTI
Applied Molecular Transport
Genelux Corp.
Jul 02, 2026
Director
Informative Sell
34.80K
$270.55K
NewAmsterdam Pharma Company
Jan 09, 2026
Director
Uninformative Buy
$344.78K
AKAOQ
Achaogen
$0.00
List of latest transactions for each holding click on a transaction to see John Smither's performance on stock

John Smither insider profile FAQ

What is the percentage of profitable transactions made by John Smither?
The percentage of profitable transactions made by John Smither is 56%.
    What is the average return per transaction made by John Smither?
    The average return per transaction made by John Smither is 9.40%.
      What stocks does John Smither hold?
      John Smither holds: KYTH, SNNAQ, PRNB, ARQT, EFTR, AMTI, GNLX, NAMS, AKAOQ stocks.
        What was John Smither’s latest transaction?
        John Smither latest transaction was an Informative Sell of $34.80K.
          What was John Smither's most profitable transaction?
          John Smither’s most profitable transaction was an Informative Sell of GNLX stock on September 14, 2023. The return on the trade was 88.90%.
            What is John Smither's role in Kythera?
            John Smither's role in Kythera is CFO.
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