OrbiMed Capital GP VIII LLC insider trades: BlossomHill Therapeutics (BLSM) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where OrbiMed Capital GP VIII LLC reports to the SEC
and 5 more companies
Open-market buys and sales
29 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Aug 10, 2026 | BLSM | ↑ Buy | 625,000 | $16.00 | $10.0M | Indirect | Aug 12, 2026 (2d) |
| Jul 27, 2026 | SCTX | ↑ Buy | 1,000,000 | $15.00 | $15.0M | Indirect | Jul 29, 2026 (2d) |
| Jul 7, 2026 | SION | ↓ Sell10b5-1 | 85,918 | $44.86 | $3.9M | Indirect | Jul 9, 2026 (2d) |
| Jun 30, 2026 | SION | ↓ Sell10b5-1 | 115,844 | $45.50 | $5.3M | Indirect | Jul 2, 2026 (2d) |
| May 27, 2026 | SION | ↓ Sell10b5-1 | 101 | $44.49 | $4K | Indirect | May 29, 2026 (2d) |
| May 11, 2026 | SION | ↓ Sell10b5-1 | 292,952 | $45.62 | $13.4M | Indirect | May 11, 2026 (0d) |
| Apr 18, 2026 | SION | ↓ Sell10b5-1 | 55,345 | $44.67 | $2.5M | Indirect | Apr 21, 2026 (3d) |
| Apr 16, 2026 | TRAW | ↑ Buy | 597,729 | $1.67 | $998K | Indirect | Apr 28, 2026 (12d) |
| Apr 16, 2026 | SION | ↓ Sell10b5-1 | 510,583 | $44.94 | $22.9M | Indirect | Apr 16, 2026 (0d) |
| Feb 3, 2026 | SION | ↓ Sell | 30,953 | $44.58 | $1.4M | Indirect | Feb 4, 2026 (1d) |
| Dec 19, 2025 | SION | ↓ Sell | 1,875 | $44.49 | $83K | Indirect | Dec 19, 2025 (0d) |
| Nov 26, 2025 | SION | ↓ Sell | 108,073 | $44.55 | $4.8M | Indirect | Nov 26, 2025 (0d) |
| Mar 24, 2025 | IRON | ↓ Sell | 5,738 | $54.11 | $310K | Indirect | Mar 26, 2025 (2d) |
| Mar 21, 2025 | IRON | ↓ Sell | 52,429 | $54.02 | $2.8M | Indirect | Mar 21, 2025 (0d) |
| Mar 12, 2025 | IRON | ↓ Sell | 312,384 | $54.31 | $17.0M | Indirect | Mar 12, 2025 (0d) |
| Feb 10, 2025 | SION | ↑ Buy | 550,000 | $18.00 | $9.9M | Indirect | Feb 10, 2025 (0d) |
| Oct 15, 2024 | UPB | ↑ Buy | 825,000 | $17.00 | $14.0M | Indirect | Oct 17, 2024 (2d) |
| Jun 17, 2024 | IRON | ↑ Buy | 83,334 | $36.00 | $3.0M | Indirect | Jun 20, 2024 (3d) |
| Jan 30, 2024 | AVBP | ↑ Buy | 222,222 | $18.00 | $4.0M | Indirect | Jan 31, 2024 (1d) |
| Dec 18, 2023 | IRON | ↓ Sell | 1,724 | $59.24 | $102K | Direct | Dec 20, 2023 (2d) |
| Dec 14, 2023 | IRON | ↓ Sell | 433,200 | $56.75 | $24.6M | Indirect | Dec 15, 2023 (1d) |
| Dec 14, 2023 | IRON | ↓ Sell | 134,200 | $58.88 | $7.9M | Indirect | Dec 14, 2023 (0d) |
| May 5, 2023 | KNTE | ↑ Buy | 1,377,473 | $2.80 | $3.9M | Indirect | May 8, 2023 (3d) |
| May 2, 2023 | KNTE | ↑ Buy | 1,346,342 | $2.61 | $3.5M | Indirect | May 2, 2023 (0d) |
| Feb 15, 2023 | IRON | ↑ Buy | 108,696 | $23.00 | $2.5M | Indirect | Feb 17, 2023 (2d) |
| Dec 29, 2021 | JANX | ↓ Sell | 40,400 | $20.30 | $820K | Indirect | Dec 30, 2021 (1d) |
| Dec 21, 2021 | JANX | ↓ Sell | 119,400 | $19.00 | $2.3M | Indirect | Dec 23, 2021 (2d) |
| Jun 15, 2021 | JANX | ↑ Buy | 705,853 | $17.00 | $12.0M | Indirect | Jun 16, 2021 (1d) |
| Feb 17, 2021 | DBTX | ↑ Buy | 1,666,666 | $18.00 | $30.0M | Indirect | Feb 19, 2021 (2d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other BLSM insiders
Open-market trades in the last 12 months
About OrbiMed Capital GP VIII LLC's insider trades
OrbiMed Capital GP VIII LLC is a director at BlossomHill Therapeutics (BLSM). Since Feb 17, 2021, it has reported 12 open-market purchases worth $108.8M and 17 sales worth $110.0M on SEC Form 4. In the last 12 months: 3 buys ($26.0M) and 9 sales ($54.2M).
6 sales (44% of the value sold) were made under a Rule 10b5-1 trading plan, which is set up months in advance and runs on a schedule, so they say little about how the insider sees the stock today.
Its filings also include conversions (8 filings), other transactions (3 filings), grants and awards (2 filings), shares returned to the company (1 filing). 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 BLSM insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.