Booth Bruce (CIK 0001451612)

Latest company ownership

Shares held
3,948,216
Last filed at
Feb 13, 2017
Confidence Score
50.0
2025Q4
Confidence Score History
2018Q1 2025Q4
Shares held
723,246
Last filed at
Jul 9, 2024
Confidence Score
31.2
2025Q4
Confidence Score History
2021Q1 2025Q4
Shares held
686,567
Last filed at
Oct 21, 2025
Confidence Score
11.2
2025Q4
Confidence Score History
2025Q1 2025Q4
Shares held
83,037
Last filed at
Apr 3, 2018
Confidence Score
50.0
2025Q4
Confidence Score History
2018Q2 2025Q4
Shares held
17,643
Last filed at
Jun 8, 2023
Confidence Score
50.0
2025Q4
Confidence Score History
2019Q3 2025Q4
Shares held
0
Last filed at
Mar 22, 2019
Confidence Score
50.0
2025Q4
Confidence Score History
2019Q1 2025Q4

Recent buy/sell transactions

Exec date Filing date Company Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Dec 10, 2025 Dec 12, 2025 Kymera Therapeutics, Inc. Director Sell 25.0 -236,588 -0.71% ✗ $21.7M
Oct 21, 2025 Oct 21, 2025 Sionna Therapeutics, Inc. Director Sell 36.3 -88,878 -2.88% ✓ $3M
Oct 16, 2025 Oct 20, 2025 Sionna Therapeutics, Inc. Director Sell 22.5 -286,369 -8.50% ✓ $9.3M
Oct 10, 2025 Oct 15, 2025 Sionna Therapeutics, Inc. Director Sell 26.3 -194,932 -5.47% ✓ $5.9M
Oct 3, 2025 Oct 7, 2025 Sionna Therapeutics, Inc. Director Sell 40.0 -49,546 -1.37% ✓ $1.5M
Sep 29, 2025 Oct 1, 2025 Sionna Therapeutics, Inc. Director Sell 36.3 -78,693 -2.13% ✓ $2.4M
Feb 10, 2025 Feb 10, 2025 Sionna Therapeutics, Inc. Director Buy 95.0 +60,000 8.02% ✗ $1.1M
Jul 9, 2024 Jul 9, 2024 Kymera Therapeutics, Inc. Director Sell 37.5 -453,960 -1.73% ✓ $17.3M
Jun 12, 2024 Jun 14, 2024 Kymera Therapeutics, Inc. Director Sell 47.5 -26,940 -0.17% ✓ $950.2K
Mar 14, 2024 Mar 15, 2024 Kymera Therapeutics, Inc. Director Sell 42.5 -127,543 -0.39% ✓ $5.1M
Mar 11, 2024 Mar 13, 2024 Kymera Therapeutics, Inc. Director Sell 37.5 -353,357 -1.03% ✓ $14.9M
Jan 11, 2023 Jan 13, 2023 Kymera Therapeutics, Inc. Director Sell 40.0 -126,474 -1.06% ✓ $3.8M
Dec 14, 2022 Dec 16, 2022 Kymera Therapeutics, Inc. Director Sell 37.5 -382,244 -1.04% ✓ $12M
Nov 2, 2022 Nov 4, 2022 Kymera Therapeutics, Inc. Director Sell 38.8 -220,016 -1.69% ✓ $6.6M
Oct 28, 2022 Nov 1, 2022 Kymera Therapeutics, Inc. Director Sell 38.8 -288,702 -1.07% ✓ $8.7M
Aug 11, 2021 Aug 12, 2021 Kymera Therapeutics, Inc. Director Sell 15.0 -242,133 -100.00% ✗ $14.8M
Mar 12, 2021 Mar 16, 2021 Kymera Therapeutics, Inc. Director Sell 15.0 -229,350 -100.00% ✗ $13M
Jun 29, 2020 Jul 1, 2020 Dianthus Therapeutics, Inc. /DE/ Director Buy 100.0 +1,250,000 100.00% ✗ $10M
Jul 19, 2019 Jul 23, 2019 Tectonic Therapeutic, Inc. Director Buy 100.0 +810,811 17.05% ✗ $15M
Mar 20, 2019 Mar 22, 2019 Dianthus Therapeutics, Inc. /DE/ Director Sell 20.0 -726,500 -14.96% ✗ $254.4K
Apr 3, 2018 Apr 3, 2018 Cogent Biosciences, Inc. Director Buy 92.5 +94,052 2.88% ✗ $1.1M
Feb 13, 2018 Feb 13, 2018 Viridian Therapeutics, Inc.\DE Director Buy 100.0 +545,454 67.70% ✗ $3M