Bruce Booth insider trades: Kymera Therapeutics (KYMR) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Bruce reports to the SEC
and 2 more companies
Open-market buys and sales
38 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Jun 29, 2026 | KYMR | ↓ Sell | 76,650 | $108.05 | $8.3M | Indirect | Jul 2, 2026 (3d) |
| Jun 29, 2026 | KYMR | ↓ Sell | 513,245 | $110.01 | $56.5M | Indirect | Jun 30, 2026 (1d) |
| Jun 29, 2026 | KYMR | ↓ Sell | 31,283 | $109.48 | $3.4M | Indirect | Jun 30, 2026 (1d) |
| Jun 22, 2026 | KYMR | ↓ Sell | 466,457 | $94.84 | $44.2M | Indirect | Jun 22, 2026 (0d) |
| Jun 22, 2026 | KYMR | ↓ Sell | 31,798 | $103.75 | $3.3M | Indirect | Jun 22, 2026 (0d) |
| Jun 17, 2026 | KYMR | ↓ Sell | 11,741 | $89.98 | $1.1M | Direct | Jun 22, 2026 (5d) |
| Apr 15, 2026 | KYMR | ↓ Sell | 6,359 | $89.96 | $572K | Direct | Apr 16, 2026 (1d) |
| Apr 15, 2026 | KYMR | ↓ Sell | 3,135 | $90.10 | $282K | Indirect | Apr 16, 2026 (1d) |
| Mar 2, 2026 | KYMR | ↓ Sell | 81,866 | $90.13 | $7.4M | Indirect | Mar 4, 2026 (2d) |
| Dec 12, 2025 | KYMR | ↓ Sell | 236,588 | $91.72 | $21.7M | Indirect | Dec 12, 2025 (0d) |
| Oct 21, 2025 | SION | ↓ Sell | 73,460 | $34.22 | $2.5M | By Atlas Venture Fund XI, L.P. | Oct 21, 2025 (0d) |
| Oct 21, 2025 | SION | ↓ Sell | 15,418 | $34.22 | $528K | By Atlas Venture Opportunity Fund II, L. | Oct 21, 2025 (0d) |
| Oct 20, 2025 | SION | ↓ Sell | 236,690 | $32.30 | $7.6M | By Atlas Venture Fund XI, L.P. | Oct 20, 2025 (0d) |
| Oct 20, 2025 | SION | ↓ Sell | 49,679 | $32.30 | $1.6M | By Atlas Venture Opportunity Fund II, L. | Oct 20, 2025 (0d) |
| Oct 15, 2025 | SION | ↓ Sell | 161,116 | $30.47 | $4.9M | By Atlas Venture Fund XI, L.P. | Oct 15, 2025 (0d) |
| Oct 15, 2025 | SION | ↓ Sell | 33,816 | $30.47 | $1.0M | By Atlas Venture Opportunity Fund II, L. | Oct 15, 2025 (0d) |
| Oct 6, 2025 | SION | ↓ Sell | 40,951 | $29.99 | $1.2M | By Atlas Venture Fund XI, L.P. | Oct 7, 2025 (1d) |
| Oct 6, 2025 | SION | ↓ Sell | 8,595 | $29.99 | $258K | By Atlas Venture Opportunity Fund II, L. | Oct 7, 2025 (1d) |
| Oct 1, 2025 | SION | ↓ Sell | 65,041 | $30.08 | $2.0M | By Atlas Venture Fund XI, L.P. | Oct 1, 2025 (0d) |
| Oct 1, 2025 | SION | ↓ Sell | 13,652 | $30.08 | $411K | By Atlas Venture Opportunity Fund II, L. | Oct 1, 2025 (0d) |
| Feb 10, 2025 | SION | ↑ Buy | 60,000 | $18.00 | $1.1M | By Atlas Venture Opportunity Fund II, L. | Feb 10, 2025 (0d) |
| Jul 9, 2024 | KYMR | ↓ Sell | 453,960 | $38.21 | $17.3M | Indirect | Jul 9, 2024 (0d) |
| Jun 13, 2024 | KYMR | ↓ Sell | 26,940 | $35.27 | $950K | Indirect | Jun 14, 2024 (1d) |
| Mar 15, 2024 | KYMR | ↓ Sell | 127,389 | $40.25 | $5.1M | Indirect | Mar 15, 2024 (0d) |
| Mar 14, 2024 | KYMR | ↓ Sell | 154 | $41.51 | $6K | Indirect | Mar 15, 2024 (1d) |
| Mar 13, 2024 | KYMR | ↓ Sell | 353,357 | $42.20 | $14.9M | Indirect | Mar 13, 2024 (0d) |
| Jan 12, 2023 | KYMR | ↓ Sell | 126,474 | $30.22 | $3.8M | Indirect | Jan 13, 2023 (1d) |
| Dec 15, 2022 | KYMR | ↓ Sell | 382,244 | $31.36 | $12.0M | Indirect | Dec 16, 2022 (1d) |
| Nov 3, 2022 | KYMR | ↓ Sell | 220,016 | $30.01 | $6.6M | Indirect | Nov 4, 2022 (1d) |
| Nov 1, 2022 | KYMR | ↓ Sell | 288,702 | $30.26 | $8.7M | Indirect | Nov 1, 2022 (0d) |
| Jan 11, 2022 | VIGL | ↑ Buy | 535,000 | $14.00 | $7.5M | By Atlas Venture Fund XII, L.P. | Jan 11, 2022 (0d) |
| Aug 11, 2021 | KYMR | ↓ Sell | 242,133 | $61.00 | $14.8M | Indirect | Aug 12, 2021 (1d) |
| Mar 12, 2021 | KYMR | ↓ Sell | 229,350 | $56.50 | $13.0M | Indirect | Mar 16, 2021 (4d) |
| Jun 29, 2020 | MGTA | ↑ Buy | 1,250,000 | $8.00 | $10.0M | Indirect | Jul 1, 2020 (2d) |
| Jul 19, 2019 | AVRO | ↑ Buy | 810,811 | $18.50 | $15.0M | Indirect | Jul 23, 2019 (4d) |
| Mar 20, 2019 | MGTA | ↓ Sell | 14,245 | $17.86 | $254K | Indirect | Mar 22, 2019 (2d) |
| Apr 3, 2018 | UMRX | ↑ Buy | 94,052 | $12.00 | $1.1M | Indirect | Apr 3, 2018 (0d) |
| Feb 13, 2018 | MGEN | ↑ Buy | 545,454 | $5.50 | $3.0M | Indirect | Feb 13, 2018 (0d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other KYMR insiders
Open-market trades in the last 12 months
About Bruce Booth's insider trades
Bruce Booth is an insider at Kymera Therapeutics (KYMR). Since Feb 13, 2018, Bruce has reported 6 open-market purchases worth $37.7M and 32 sales worth $266.2M on SEC Form 4. In the last 12 months: 10 sales ($146.7M).
Their filings also include grants and awards (48 filings), conversions (7 filings), option exercises (2 filings), shares returned to the company (2 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every KYMR insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.