Leon O Moulder JR Insider Trading Activity

Corporate InsiderCEO · CIK 1228865

10

Total trades

$6.5M

Total volume

May 18, 2026

Last activity

ZBIO

Zenas BioPharma, Inc.

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.

PERIODAVG BUY RETURNAVG SELL AVOIDEDSUCCESS RATETRADES
30 days+22.6%90%10
90 days+23.7%86%7
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 Markers

ZBIO · Zenas BioPharma, Inc.

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Recent Trades

DATETICKERTYPESHARESPRICEVALUEΔ OWNEDROLEFILING
May 18, 2026
ZBIOBuy60,000$16.88$1.0M+162.5%CEO
Apr 29, 2026
ZBIOBuy35,000$17.62$617K+2.0%CEO
Apr 28, 2026
ZBIOBuy25,000$18.02$451K+1.4%CEO
Mar 31, 2026
ZBIOBuy34,000$19.31$657K+2.0%CEO
Mar 30, 2026
ZBIOBuy20,000$18.23$365K+1.2%CEO
Feb 2, 2026
ZBIOBuy57,000$17.96$1.0M+15.6%CEO
Jan 9, 2026
ZBIOBuy20,000$16.55$331K+5.8%CEO
Jan 8, 2026
ZBIOBuy30,000$16.30$489K+9.5%CEO
Jan 7, 2026
ZBIOBuy50,000$16.38$819K+18.8%CEO
Oct 7, 2025
ZBIOBuy36,928$20.85$770KSee Remarks

Top Companies Traded

TICKERCOMPANYTRADESTOTAL VOLUME
ZBIOZenas BioPharma, Inc.10$6.5M

Other insiders at Zenas BioPharma, Inc.

2 other tracked filers at ZBIO.