ZBIO Zenas BioPharma

• $11.4M bought by 4 insiders
• None no sales outside a trading plan
• None no planned (10b5-1) sales

1. Insider
   Trade
   Value
   Traded, filed
2. Leon O Moulder Jr. CEO
   Buy
   $1M 60,000 shares at $16.88 +163% to stake
   Traded May 18 Filed May 18
   ↗
3. Leon O Moulder Jr. CEO
   Buy
   $1.1M 60,000 shares at $17.79 +3.5% to stake
   Traded Apr 28–29 Filed Apr 29
   ↗
4. Hongbo Lu Director
   Buy
   $70K 3,768 shares at $18.63 +0.9% to stake
   Traded Mar 31 Filed Apr 2
   ↗
5. Fairmount Funds Management LLC Director, +3 joint filers
   Buy
   $3M 150,000 shares at $20.00 +6.8% to stake
   Traded Mar 31 Filed Apr 1
   ↗
6. Leon O Moulder Jr. CEO
   Buy
   $1M 54,000 shares at $18.91 +3.2% to stake
   Traded Mar 30–31 Filed Mar 31
   ↗
7. Hongbo Lu Director
   Buy
   $1.5M 75,000 shares at $20.00 +22% to stake
   Traded Mar 31 Filed Mar 31
   ↗
8. Hongbo Lu Director
   Buy
   $585K 25,985 shares at $22.50 +8.1% to stake
   Traded Feb 11 Filed Feb 13
   ↗
9. Patricia L Allen Director
   Buy
   $500K 19,860 shares at $25.16 New stake
   Traded Feb 12–13 Filed Feb 13
   ↗
10. Leon O Moulder Jr. CEO
    Buy
    $1M 57,000 shares at $17.96 +16% to stake
    Traded Feb 2 Filed Feb 3
    ↗
11. Leon O Moulder Jr. CEO
    Buy
    $1.6M 100,000 shares at $16.39 +38% to stake
    Traded Jan 7–9 Filed Jan 9
    ↗
12. Jason Raleigh Nunn Director
    Buy
    $1.2M 63,158 shares at $19.00 +5.7% to stake
    Traded Oct 9, 2025 Filed Oct 14, 2025
    ↗
13. Sr One Capital Management, LLC 10% owner, +1 joint filer
    Buy
    $2.4M 126,315 shares at $19.00 +7.1% to stake
    Traded Oct 9, 2025 Filed Oct 14, 2025
    ↗
14. Patrick G Enright Director
    Buy
    $2.3M 117,255 shares at $19.19
    Traded Oct 9, 2025 Filed Oct 14, 2025
    ↗
15. Leon O Moulder Jr. See Remarks
    Buy
    $770K 36,928 shares at $20.85 New stake
    Traded Oct 7, 2025 Filed Oct 9, 2025
    ↗
16. Fairmount Funds Management LLC Director, +3 joint filers
    Buy
    $6M 316,219 shares at $19.00 +17% to stake
    Traded Oct 7, 2025 Filed Oct 9, 2025
    ↗

Also filed in the last 12 months, not counted as buying or selling: 2 stock grants.