Kevin Tang insider trades: Boundless Bio (BOLD) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Kevin reports to the SEC
and 19 more companies
Open-market buys and sales
183 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Nov 5, 2026 | BOLD | ↑ Buy | 11,162 | $2.40 | $27K | Indirect | Nov 5, 2026 (0d) |
| Oct 27, 2026 | BOLD | ↑ Buy | 10,707 | $2.40 | $26K | Indirect | Oct 29, 2026 (2d) |
| Oct 26, 2026 | BOLD | ↑ Buy | 21,640 | $2.39 | $52K | Indirect | Oct 26, 2026 (0d) |
| Oct 20, 2026 | BOLD | ↑ Buy | 149,474 | $2.34 | $350K | Indirect | Oct 20, 2026 (0d) |
| Aug 26, 2026 | BOLD | ↓ Sell | 18,300 | $2.97 | $54K | Indirect | Aug 28, 2026 (2d) |
| Jul 21, 2026 | BOLD | ↑ Buy | 4,863 | $2.44 | $12K | Indirect | Jul 21, 2026 (0d) |
| Jul 17, 2026 | FULC | ↑ Buy | 167,616 | $3.55 | $595K | Indirect | Jul 20, 2026 (3d) |
| Jul 16, 2026 | BOLD | ↑ Buy | 63,969 | $2.43 | $156K | Indirect | Jul 16, 2026 (0d) |
| Jul 15, 2026 | FULC | ↑ Buy | 249,946 | $3.57 | $891K | Indirect | Jul 15, 2026 (0d) |
| Jul 13, 2026 | BOLD | ↑ Buy | 91,585 | $2.42 | $222K | Indirect | Jul 13, 2026 (0d) |
| Jul 8, 2026 | BOLD | ↑ Buy | 57,210 | $2.48 | $142K | By LP | Jul 8, 2026 (0d) |
| Jun 29, 2026 | BOLD | ↑ Buy | 286,333 | $2.50 | $715K | By LP | Jun 29, 2026 (0d) |
| Jun 2, 2026 | AUPH | ↑ Buy | 814,606 | $15.29 | $12.5M | By LP | Jun 2, 2026 (0d) |
| Mar 3, 2026 | AUPH | ↑ Buy | 900,000 | $14.10 | $12.7M | By LP | Mar 3, 2026 (0d) |
| Aug 5, 2025 | AUPH | ↑ Buy | 1,300,000 | $10.45 | $13.6M | By LP | Aug 5, 2025 (0d) |
| Mar 4, 2025 | AUPH | ↑ Buy | 1,600,000 | $7.95 | $12.7M | By LP | Mar 4, 2025 (0d) |
| Dec 9, 2024 | AUPH | ↑ Buy | 1,200,000 | $9.02 | $10.8M | By LP | Dec 9, 2024 (0d) |
| Sep 18, 2024 | OMIC | ↑ Buy | 122,416 | $14.75 | $1.8M | By LP | Sep 18, 2024 (0d) |
| Dec 18, 2023 | RAIN | ↓ Sell | 173,973 | $1.20 | $209K | By LP | Dec 18, 2023 (0d) |
| Oct 13, 2023 | RAIN | ↑ Buy | 284,145 | $0.98 | $279K | By LP | Oct 13, 2023 (0d) |
| Jun 1, 2023 | RAIN | ↑ Buy | 1,088,273 | $1.06 | $1.2M | By LP | Jun 1, 2023 (0d) |
| May 25, 2023 | TCRR | ↑ Buy | 50,000 | $1.72 | $86K | By LP | May 30, 2023 (5d) |
| May 12, 2023 | TCRR | ↑ Buy | 44,948 | $1.95 | $88K | By LP | May 15, 2023 (3d) |
| May 10, 2023 | TCRR | ↑ Buy | 83,988 | $1.95 | $164K | By LP | May 10, 2023 (0d) |
| May 5, 2023 | TCRR | ↑ Buy | 289,577 | $1.89 | $548K | By LP | May 5, 2023 (0d) |
| Mar 14, 2023 | JNCE | ↑ Buy | 85,987 | $1.00 | $86K | By LP | Mar 14, 2023 (0d) |
| Dec 1, 2021 | LJPC | ↓ Sell | 441,290 | $3.93 | $1.7M | By LP | Dec 1, 2021 (0d) |
| Nov 23, 2021 | APVO | ↓ Sell | 921,336 | $11.25 | $10.4M | By LP | Nov 26, 2021 (3d) |
| Nov 22, 2021 | APVO | ↓ Sell | 838,664 | $7.75 | $6.5M | By LP | Nov 22, 2021 (0d) |
| Nov 19, 2021 | ODT | ↓ Sell | 2,747,131 | $2.09 | $5.7M | By LP | Nov 19, 2021 (0d) |
| Jun 1, 2021 | LJPC | ↑ Buy | 245,020 | $4.47 | $1.1M | By LP | Jun 1, 2021 (0d) |
| May 26, 2021 | LJPC | ↑ Buy | 398,714 | $3.96 | $1.6M | By LP | May 26, 2021 (0d) |
| Dec 23, 2020 | ODT | ↑ Buy | 275,784 | $15.16 | $4.2M | By LP | Dec 23, 2020 (0d) |
| Nov 6, 2020 | APVO | ↑ Buy | 1,436,675 | $17.30 | $24.8M | By LP | Nov 6, 2020 (0d) |
| Sep 29, 2020 | ODT | ↑ Buy | 110,882 | $13.13 | $1.5M | By LP | Sep 30, 2020 (1d) |
| Sep 9, 2020 | LJPC | ↑ Buy | 278,369 | $3.94 | $1.1M | By LP | Sep 9, 2020 (0d) |
| Aug 28, 2020 | ODT | ↑ Buy | 1,052,631 | $14.25 | $15.0M | By LP | Sep 1, 2020 (4d) |
| Aug 14, 2020 | LJPC | ↑ Buy | 431,647 | $3.72 | $1.6M | By LP | Aug 14, 2020 (0d) |
| Jun 4, 2020 | LJPC | ↑ Buy | 615,129 | $4.91 | $3.0M | By LP | Jun 4, 2020 (0d) |
| Feb 3, 2020 | LJPC | ↑ Buy | 169,770 | $6.76 | $1.1M | By LP | Feb 3, 2020 (0d) |
| Jan 13, 2020 | LJPC | ↑ Buy | 2,971,682 | $5.87 | $17.4M | By LP | Jan 13, 2020 (0d) |
| Oct 4, 2019 | HRTX | ↑ Buy | 285,714 | $17.50 | $5.0M | By LP | Oct 7, 2019 (3d) |
| Jun 26, 2019 | ODT | ↑ Buy | 769,231 | $26.00 | $20.0M | By LP | Jun 28, 2019 (2d) |
| Jun 18, 2019 | ODT | ↑ Buy | 50,000 | $26.15 | $1.3M | By LP | Jun 18, 2019 (0d) |
| Jun 7, 2019 | ODT | ↑ Buy | 76,308 | $27.36 | $2.1M | By LP | Jun 10, 2019 (3d) |
| Jun 5, 2019 | ODT | ↑ Buy | 93,692 | $24.92 | $2.3M | By LP | Jun 5, 2019 (0d) |
| Mar 8, 2019 | ODT | ↑ Buy | 140,000 | $18.26 | $2.6M | By LP | Mar 11, 2019 (3d) |
| Jan 9, 2019 | LJPC | ↑ Buy | 1,300,000 | $5.37 | $7.0M | By LP | Jan 9, 2019 (0d) |
| Dec 31, 2018 | ODT | ↑ Buy | 63,700 | $13.11 | $835K | By LP | Dec 31, 2018 (0d) |
| Dec 26, 2018 | ODT | ↑ Buy | 60,000 | $12.60 | $756K | By LP | Dec 26, 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 BOLD insiders
Open-market trades in the last 12 months
About Kevin Tang's insider trades
Kevin Tang is an insider at Boundless Bio (BOLD). Since Sep 8, 2005, Kevin has reported 166 open-market purchases worth $378.2M and 17 sales worth $133.3M on SEC Form 4. In the last 12 months: 13 buys ($28.3M) and 1 sale ($54K).
Their filings also include grants and awards (37 filings), other transactions (18 filings), shares returned to the company (4 filings), option exercises (4 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 BOLD insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.