Lu Hongbo: insider buys
Every open-market stock purchase reported by Lu Hongbo to the SEC on Form 4.
Total bought$8.15M
Purchases4
Companies1
Last purchase filedApr 2, 2026
Return on these buys+38%
Lu Hongbo has made 4 open-market purchases worth $8.15M in 1 company since Oct 9, 2025, according to SEC Form 4 filings. The most recent was filed on Apr 2, 2026: 3,768 shares of ZBIO at $18.63 (Director), worth $70.20K. The largest was $6M of ZBIO on Sep 13, 2024. Taken together, these purchases are up 38% at the latest closing prices (split-adjusted, weighted by amount).
Companies Lu Hongbo bought
| Ticker | Company | Role | Buys | Total | Since buy | Last filed |
|---|---|---|---|---|---|---|
| ZBIO | Zenas BioPharma, Inc. | Director | 4 | $8.15M | +38% | Apr 2 |
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| Filed | Stock | Insider | Value | Shares | Price | Since buy | Stake | Trade | |
|---|---|---|---|---|---|---|---|---|---|
| Apr 2 | ZBIOZenas BioPharma, Inc. | Lu HongboDirector | $70.20K | 3,768 | $18.63 | +52% | +1% | Mar 31 | SEC |
| Mar 31 | ZBIOZenas BioPharma, Inc. | Lu HongboDirector | $1.50M | 75,000 | $20.00 | +42% | +22% | Mar 31 | SEC |
| Feb 13 | ZBIOZenas BioPharma, Inc. | Lu HongboDirector | $584.66K | 25,985 | $22.50 | +26% | +8% | Feb 11 | SEC |
| Oct 9 | ZBIOZenas BioPharma, Inc. | Lu HongboDirector | $6M | 321,983 | $18.63 | — | new | Sep 13 | SEC |