Hongbo Lu
Insider
First SEC filing: March 18, 2024 · Latest: June 17, 2026
Insider at
Insider transactions
4 buys (P)
1 sells (S)
Net: $6,926,566
Avg return of open purchases vs now: 38.1%
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| June 15, 2026 | ZBIO | A | 18,500 | · | · | 18,500 Direct | · | Acquired | (price as of 2026-10-06) |
| May 12, 2026 | ARWR | S 10b5-1 | 2,970 | $76.88 | $228,334 | 52,012 Direct | -5.40% | Disposed | -18.3% (price as of 2026-10-06) |
| March 31, 2026 | ZBIO | P | 3,768 | $18.63 | $70,198 | 426,736 Indirect | +0.89% | Acquired | 47.7% (price as of 2026-10-06) |
| March 31, 2026 | ZBIO | P | 75,000 | $20.00 | $1,500,000 | 422,968 Indirect | +21.55% | Acquired | 37.6% (price as of 2026-10-06) |
| Feb. 11, 2026 | ZBIO | P | 25,985 | $22.50 | $584,662 | 347,968 Indirect | +8.07% | Acquired | 22.3% (price as of 2026-10-06) |
| Dec. 16, 2025 | ARWR | A | 7,819 | · | · | 54,982 Direct | +16.58% | Acquired | (price as of 2026-10-06) |
| Oct. 7, 2025 | ZBIO | P | 263,160 | $19.00 | $5,000,040 | 321,983 Indirect | +447.38% | Acquired | 44.8% (price as of 2026-10-06) |
| June 10, 2025 | ZBIO | A | 18,500 | · | · | 18,500 Direct | · | Acquired | (price as of 2026-10-06) |
| Dec. 18, 2024 | ARWR | A | 16,733 | $22.99 | $384,692 | 47,163 Direct | +54.99% | Acquired | 173.1% (price as of 2026-10-06) |
| Sept. 13, 2024 | ZBIO | P | 58,823 | $17.00 | $999,991 | 58,823 Indirect | · | Acquired | 61.9% (price as of 2026-10-06) |
| Sept. 13, 2024 | ZBIO | P | 58,823 | $17.00 | $999,991 | 58,823 Indirect | · | Acquired | 61.9% (price as of 2026-10-06) |
| Sept. 12, 2024 | ZBIO | A | 37,000 | · | · | 37,000 Direct | · | Acquired | (price as of 2026-10-06) |
| March 20, 2024 | ARWR | P | 1,000 | $27.50 | $27,500 | 33,680 Direct | +3.06% | Acquired | 128.3% (price as of 2026-10-06) |
| March 19, 2024 | ARWR | P | 1,000 | $28.00 | $28,000 | 32,680 Direct | +3.16% | Acquired | 124.3% (price as of 2026-10-06) |
| March 18, 2024 | ARWR | P | 1,000 | $27.49 | $27,490 | 31,680 Direct | +3.26% | Acquired | 128.4% (price as of 2026-10-06) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| June 15, 2026 | ZBIO | Stock Option (Right to Buy) | Common Stock | $18.71 | June 15, 2036 | 18,500 | Acquired |
| June 10, 2025 | ZBIO | Stock Option (Right to Buy) | Common Stock | $11.94 | June 10, 2035 | 18,500 | Acquired |
| Sept. 12, 2024 | ZBIO | Stock Option (Right to Buy) | Common Stock | $17.00 | Sept. 11, 2034 | 37,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| March 18, 2024 | ARWR | Common Stock | · | Direct |