Hongbo Lu insider trades: Arrowhead Pharmaceuticals (ARWR) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Hongbo reports to the SEC
Open-market buys and sales
11 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| May 12, 2026 | ARWR | ↓ Sell | 2,970 | $76.88 | $228K | Direct | May 14, 2026 (2d) |
| Mar 31, 2026 | ZBIO | ↑ Buy | 3,768 | $18.63 | $70K | Indirect | Apr 2, 2026 (2d) |
| Mar 31, 2026 | ZBIO | ↑ Buy | 75,000 | $20.00 | $1.5M | Indirect | Mar 31, 2026 (0d) |
| Oct 7, 2025 | ZBIO | ↑ Buy | 321,983 | $18.63 | $6.0M | Indirect | Oct 9, 2025 (2d) |
| Sep 13, 2024 | ZBIO | ↑ Buy | 58,823 | $17.00 | $1000K | Indirect | Sep 17, 2024 (4d) |
| Sep 12, 2024 | TERN | ↑ Buy | 476,190 | $10.50 | $5.0M | Indirect | Sep 17, 2024 (5d) |
| Mar 20, 2024 | ARWR | ↑ Buy | 3,000 | $27.66 | $83K | Direct | Mar 20, 2024 (0d) |
| Dec 23, 2022 | TERN | ↑ Buy | 758,620 | $7.25 | $5.5M | Indirect | Dec 23, 2022 (0d) |
| Sep 7, 2022 | TERN | ↑ Buy | 600,000 | $3.60 | $2.2M | Indirect | Sep 8, 2022 (1d) |
| Aug 16, 2022 | TERN | ↑ Buy | 2,624,239 | $2.66 | $7.0M | Indirect | Aug 16, 2022 (0d) |
| Apr 22, 2019 | TPTX | ↑ Buy | 60,000 | $18.00 | $1.1M | By LAV Prime Limited | Apr 24, 2019 (2d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other ARWR insiders
Open-market trades in the last 12 months
About Hongbo Lu's insider trades
Hongbo Lu is a director at Arrowhead Pharmaceuticals (ARWR). Since Apr 22, 2019, Hongbo has reported 10 open-market purchases worth $29.4M and 1 sale worth $228K on SEC Form 4. In the last 12 months: 2 buys ($1.6M) and 1 sale ($228K).
Their filings also include grants and awards (15 filings), other transactions (1 filing), shares returned to the company (1 filing), conversions (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 ARWR insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.