Moulder Leon O Jr: insider buys
Every open-market stock purchase reported by Moulder Leon O Jr to the SEC on Form 4.
Total bought$6.53M
Purchases6
Companies1
Last purchase filedMay 18, 2026
Return on these buys+46%
Moulder Leon O Jr has made 6 open-market purchases worth $6.53M in 1 company since Oct 9, 2025, according to SEC Form 4 filings. The most recent was filed on May 18, 2026: 60,000 shares of ZBIO at $16.88 (Chief Executive Officer, Director), worth $1.01M. The largest was $1.64M of ZBIO on Jan 7, 2026. Taken together, these purchases are up 46% at the latest closing prices (split-adjusted, weighted by amount).
Companies Moulder Leon O Jr bought
| Ticker | Company | Role | Buys | Total | Since buy | Last filed |
|---|---|---|---|---|---|---|
| ZBIO | Zenas BioPharma, Inc. | Chief Executive Officer, Director | 6 | $6.53M | +46% | May 18 |
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| Filed | Stock | Insider | Value | Shares | Price | Since buy | Stake | Trade | |
|---|---|---|---|---|---|---|---|---|---|
| May 18 | ZBIOZenas BioPharma, Inc. | Moulder Leon O JrindirectChief Executive Officer, Director | $1.01M | 60,000 | $16.88 | +54% | +162% | May 18 | SEC |
| Apr 29 | ZBIOZenas BioPharma, Inc. | Moulder Leon O JrindirectChief Executive Officer, Director | $1.07M | 60,000 | $17.79 | +46% | +4% | Apr 28 | SEC |
| Mar 31 | ZBIOZenas BioPharma, Inc. | Moulder Leon O JrindirectChief Executive Officer, Director | $1.02M | 54,000 | $18.91 | +37% | +3% | Mar 30 | SEC |
| Feb 3 | ZBIOZenas BioPharma, Inc. | Moulder Leon O JrChief Executive Officer, Director | $1.02M | 57,000 | $17.96 | +44% | +16% | Feb 2 | SEC |
| Jan 9 | ZBIOZenas BioPharma, Inc. | Moulder Leon O JrChief Executive Officer, Director | $1.64M | 100,000 | $16.39 | +58% | +41% | Jan 7 | SEC |
| Oct 9 | ZBIOZenas BioPharma, Inc. | Moulder Leon O JrindirectprivateSee Remarks, Director | $769.95K | 36,928 | $20.85 | +24% | new | Oct 7 | SEC |