The CEO's buy is too small relative to market cap to be a strong standalone signal. Monitor for additional insider accumulation or upcoming clinical catalysts (e.g., trial data) that could provide a clearer directional read. The poor historical performance of prior ZBIO insider-buy reports suggests caution.
Price Chart
Executive Summary
CEO Leon O. Moulder Jr. purchased 57,000 shares of Zenas BioPharma for $1.02M at $17.96 per share in an open-market transaction. The buy represents ~0.09% of the $1.1B market cap, a trivial amount that does not signal material conviction relative to company size. Historical insider-buy reports on ZBIO have underperformed, further tempering the signal.
Key Financial Metrics
Key Facts
- CEO Leon O. Moulder Jr. bought 57,000 shares at $17.96 for a total of $1.02M
- Purchase represents ~0.09% of ZBIO's $1.1B market capitalization
- Transaction occurred on February 2, 2026, within a window from Jan 29 to Feb 5
- ZBIO has 86% analyst bullish rating (7 Strong Buy, 5 Buy, 2 Hold)
Financial Impact
CEO purchased $1.02M of common stock, equivalent to 0.09% of market cap
Risk Factors
- Biotech clinical trial risk and regulatory uncertainty
- Low insider buy magnitude limits signal reliability
- Historical insider-buy reports on ZBIO have been poor predictors of positive returns
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| INSIDER-BUY Data (Synthetic) | 0001104659-26-009756 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 27, 2026 today | SC 13G | $27.09 | awaiting T+60 | — | $27.30 (+0.78%) |
Oct 16, 2026 11d ago | Press Release | $26.71 | awaiting T+60 | — | $27.30 (+2.21%) |
Oct 13, 2026 14d ago | 8-K | $25.16 | awaiting T+60 | — | $27.30 (+8.51%) |
Sep 22, 2026 5w ago | Press Release | $33.05 | awaiting T+60 | — | $27.30 (−17.40%) |
Sep 18, 2026 5w ago | Press Release | $32.55 | awaiting T+60 | — | $27.30 (−16.13%) |
Sep 11, 2026 6w ago | S-3ASR | $31.91 | awaiting T+60 | — | $27.30 (−14.45%) |
May 28, 2026 21w ago | Press Release | $18.56 $32.29 | ▲ +73.98% | ▲ +72.24% | $27.30 (+47.09%) |
May 19, 2026 23w ago | Press Release | $17.84 $29.20 | ▲ +63.68% | ▲ +57.39% | $27.30 (+53.03%) |
May 13, 2026 23w ago | Press Release | $19.93 $32.43 | ▲ +62.72% | ▲ +58.28% | $27.30 (+36.98%) |
May 13, 2026 23w ago | 8-K | $19.93 $32.43 | ▲ +62.72% | ▲ +58.28% | $27.30 (+36.98%) |
US Market Status
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