WGS GeneDx

• $107M bought by 2 insiders
• $6.1M sold by 1 insider outside a trading plan
• $511K sold by 1 insider under 10b5-1 plans

1. Insider
   Trade
   Value
   Traded, filed
2. Casdin Capital, LLC Director, +3 joint filers
   Buy
   $11.1M 200,000 shares at $55.55 +5.7% to stake
   Traded Jun 4–5 Filed Jun 8
   ↗
3. Casdin Capital, LLC Director, +3 joint filers
   Buy
   $21.5M 500,000 shares at $42.92 +17% to stake
   Traded May 18–20 Filed May 20
   ↗
4. Keith A. Meister Director, +1 joint filer
   Buy
   $13.8M 351,273 shares at $39.19 +7.9% to stake
   Traded May 13–15 Filed May 15
   ↗
5. Keith A. Meister Director, +1 joint filer
   Buy
   $46.8M 1,205,147 shares at $38.84 +37% to stake
   Traded May 7–11 Filed May 11
   ↗
6. Keith A. Meister Director, +1 joint filer
   Buy
   $13.5M 169,521 shares at $79.40 +5.5% to stake
   Traded Mar 3–5 Filed Mar 5
   ↗
7. Bryan Dechairo COO
   Planned sale
   $511K 5,961 shares at $85.70 100% of stake
   Traded Feb 4 Filed Feb 6
   ↗
8. Joshua Ruch Director
   Sale
   $6.1M 38,000 shares at $160.37 24% of stake
   Traded Nov 24, 2025 Filed Nov 26, 2025
   ↗

Also filed in the last 12 months, not counted as buying or selling: 85 sales to cover taxes, 38 option exercises, and 4 stock grants.