Leon O Moulder JR Insider Trading Activity
Leon O Moulder JR has been net-buying over the last 12 months with 10 purchases and 0 sales across 1 company.
ZBIO is the most-traded position with 10 trades. The largest single transaction was a purchase of ZBIO for $1.0M on Feb 2, 2026.
Performance Scorecard
Forward stock performance after each transaction by Leon O Moulder JR. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.
| PERIOD | AVG BUY RETURN | AVG SELL AVOIDED | SUCCESS RATE | TRADES |
|---|---|---|---|---|
| 30 days | +23.2% | — | 89% | 9 |
| 90 days | +18.7% | — | 80% | 5 |
| 120 days | +11.5% | — | 60% | 5 |
Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.
Price & Trades
Pro: Trade MarkersZBIO · Zenas BioPharma, Inc.
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| DATE | TICKER | TYPE | SHARES | PRICE | VALUE | ROLE |
|---|---|---|---|---|---|---|
| May 18, 2026 | ZBIO | Buy | 60,000 | $16.88 | $1.0M | CEO |
| Apr 29, 2026 | ZBIO | Buy | 35,000 | $17.62 | $617K | CEO |
| Apr 28, 2026 | ZBIO | Buy | 25,000 | $18.02 | $451K | CEO |
| Mar 31, 2026 | ZBIO | Buy | 34,000 | $19.31 | $657K | CEO |
| Mar 30, 2026 | ZBIO | Buy | 20,000 | $18.23 | $365K | CEO |
| Feb 2, 2026 | ZBIO | Buy | 57,000 | $17.96 | $1.0M | CEO |
| Jan 9, 2026 | ZBIO | Buy | 20,000 | $16.55 | $331K | CEO |
| Jan 8, 2026 | ZBIO | Buy | 30,000 | $16.30 | $489K | CEO |
| Jan 7, 2026 | ZBIO | Buy | 50,000 | $16.38 | $819K | CEO |
| Oct 7, 2025 | ZBIO | Buy | 36,928 | $20.85 | $770K | See Remarks |
Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| ZBIO | Zenas BioPharma, Inc. | 10 | $6.5M |
Other insiders at Zenas BioPharma, Inc.
2 other tracked filers at ZBIO.