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Bruce Booth Insider Profile

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Bruce Booth, Director, Ten Percent Owner at Larimar Therapeutics, holds 674.94K shares in Kymera Therapeutics (Ticker: KYMR), holds 3.00M shares in Sionna Therapeutics, Inc. (Ticker: SION), holds 0.00 shares in Vigil Neuroscience Inc (Ticker: VIGL).
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Bruce Booth

Bruce Booth
Larimar Therapeutics (LRMR)
Director, Ten Percent Owner

Ranked #15,479 out of 107,360 Corporate Insiders

Profitable Transactions

60%
6 out of 10 Profitable Transactions

Average Return

+12.80%
Average return per transaction
Time Frame
1 Year
Compare to
No Benchmark
How are Insiders Ranked?

Insider Holdings

$1B
46.14%
16.11%
12.25%
10.92%
14.58% Others
A breakdown of Bruce Booth's holdings
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Insider Roles

Dianthus Therapeutics
(DNTH)
Director
Tectonic Therapeutic
(TECX)
Director
Sionna Therapeutics, Inc.
(SION)
Director
Cogent Biosciences
(COGT)
Director
+3 other positions
Roles that Bruce Booth holds in companies
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Most Profitable Insider Trade

Stock:
Sionna Therapeutics, Inc.
(SION)
Rating:Informative Buy
Date:Feb 10, 2025 - Feb 10, 2026
Return:+70.90%
The most profitable trade made by Bruce Booth
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Bruce Booth's Trading History

Company Name
Last Transaction Date
Insider Position
Last Transaction
Last Transaction Amount
Holding Value
LRMR
Larimar Therapeutics
Jan 27, 2016
Director, Ten Percent Owner
Uninformative Buy
34.99K
$16.00M
VRDN
Viridian Therapeutics
Feb 13, 2018
Director
Informative Buy
3.00M
$77.47M
COGT
Cogent Biosciences
Apr 03, 2018
Director
Uninformative Buy
―
$109.82M
TECX
Tectonic Therapeutic
Jul 23, 2019
Director
Informative Buy
15.00M
$162.12M
DNTH
Dianthus Therapeutics
Jul 01, 2020
Director
Informative Buy
10.00M
$464.15M
KYMR
Kymera Therapeutics
Apr 24, 2026
Director
Uninformative Buy
85.17K
$53.25M
VIGL
Vigil Neuroscience Inc
Aug 05, 2025
―
Uninformative Sell
―
$0.00
SION
Sionna Therapeutics, Inc.
Oct 21, 2025
Director
Uninformative Sell
3.04M
$123.21M
List of latest transactions for each holding click on a transaction to see Bruce Booth's performance on stock
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Bruce Booth insider profile FAQ

What is the percentage of profitable transactions made by Bruce Booth?
The percentage of profitable transactions made by Bruce Booth is 60%.
    What is the average return per transaction made by Bruce Booth?
    The average return per transaction made by Bruce Booth is 12.80%.
      What stocks does Bruce Booth hold?
      Bruce Booth holds: LRMR, VRDN, COGT, TECX, DNTH, KYMR, VIGL, SION stocks.
        What was Bruce Booth’s latest transaction?
        Bruce Booth latest transaction was an Uninformative Buy of $85.17K.
          What was Bruce Booth's most profitable transaction?
          Bruce Booth’s most profitable transaction was an Informative Buy of SION stock on February 10, 2025. The return on the trade was 70.90%.
            What is Bruce Booth's role in Larimar Therapeutics?
            Bruce Booth's role in Larimar Therapeutics is Director, Ten Percent Owner.
              How can I follow the stock ratings of top corporate insiders?
              Head over to our Expert Center to see a list of the Top 100 corporate insiders and follow the corporate insiders of your choice. Visit their profiles for more details about their stock transactions and see how they perform on a stock-by-stock basis.