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Bruce Booth Insider Profile
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Bruce Booth, Director, Ten Percent Owner at Larimar Therapeutics, holds 685.39K 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). Most recently, Bruce Booth Sold ― shares of Kymera Therapeutics on Dec 12, 2025 for an estimated value of $21.70M.
Bruce Booth Larimar Therapeutics (LRMR)Director, Ten Percent Owner
Larimar Therapeutics (LRMR)
Director, Ten Percent Owner
Ranked #13,457 out of 105,390 Corporate Insiders
Profitable Transactions
6 out of 10 Profitable Transactions
Average Return
+14.50%
Average return per transaction
Time Frame
Compare to
Insider Holdings
Insider Roles
Roles that Bruce Booth holds in companies
Most Profitable Insider Trade
The most profitable trade made by Bruce Booth
Bruce Booth's Trading History
Larimar Therapeutics
Jan 27, 2016
Director, Ten Percent Owner
Uninformative Buy
34.99K
$18.23M
Viridian Therapeutics
Feb 13, 2018
Director
Informative Buy
3.00M
$143.26M
Cogent Biosciences
Apr 03, 2018
Director
Uninformative Buy
―
$130.70M
Tectonic Therapeutic
Jul 23, 2019
Director
Informative Buy
15.00M
$116.24M
Dianthus Therapeutics
Jul 01, 2020
Director
Informative Buy
10.00M
$224.51M
Kymera Therapeutics
Dec 12, 2025
Director
Informative Sell
21.70M
$55.74M
Vigil Neuroscience Inc
Aug 05, 2025
―
Uninformative Sell
―
$0.00
Sionna Therapeutics, Inc.
Oct 21, 2025
Director
Uninformative Sell
3.04M
$130.91M
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 14.50%.
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 Informative Sell of $21.70M.
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 90.50%.
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?
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