ALGM Allegro MicroSystems

• None no insider bought on the open market
• $3.5M sold by 8 insiders outside a trading plan
• $1.7M sold by 3 insiders under 10b5-1 plans

1. Insider
   Trade
   Value
   Traded, filed
2. Jennie Raubacher Director
   Planned sale
   $45K 1,000 shares at $45.32 6.7% of stake
   Traded Aug 17 Filed Aug 18
   ↗
3. Erin Hagen SVP, CHRO
   Planned sale
   $101K 2,285 shares at $44.39 6.9% of stake
   Traded Aug 10 Filed Aug 12
   ↗
4. Richard Madormo SVP, Worldwide Sales
   Sale
   $264K 5,000 shares at $52.72 6.7% of stake
   Traded Jun 3 Filed Jun 4
   ↗
5. Troy Coleman SVP, General Manager, Products
   Sale
   $206K 4,500 shares at $45.72 5.5% of stake
   Traded May 22 Filed May 26
   ↗
6. Roald Graham Webster VP, Chief Accounting Officer
   Sale
   $234K 5,217 shares at $44.89 29% of stake
   Traded May 21 Filed May 22
   ↗
7. Ian Kent SVP, Global Operations
   Sale
   $110K 2,642 shares at $41.56 9.4% of stake
   Traded May 18 Filed May 19
   ↗
8. Susan D Lynch Director
   Sale
   $760K 16,711 shares at $45.46 57% of stake
   Traded May 14 Filed May 15
   ↗
9. Sharon Briansky SVP, GC and Secretary
   Sale
   $425K 8,948 shares at $47.54 11% of stake
   Traded May 11 Filed May 13
   ↗
10. Michael Doogue CEO
    Sale
    $1.4M 30,089 shares at $47.23 11% of stake
    Traded May 11 Filed May 13
    ↗
11. Sharon Briansky SVP, GC and Secretary
    Planned sale
    $340K 9,727 shares at $35.00 10% of stake
    Traded Mar 2 Filed Mar 3
    ↗
12. Erin Hagen SVP, CHRO
    Sale
    $91K 2,598 shares at $35.00 7.9% of stake
    Traded Mar 2 Filed Mar 3
    ↗
13. Sharon Briansky SVP, GC and Secretary
    Planned sale
    $385K 9,258 shares at $41.56 8.2% of stake
    Traded Feb 17 Filed Feb 18
    ↗
14. Sharon Briansky SVP, GC and Secretary
    Planned sale
    $836K 27,873 shares at $30.00 19% of stake
    Traded Dec 10, 2025 Filed Dec 12, 2025
    ↗

Also filed in the last 12 months, not counted as buying or selling: 20 stock grants, 13 share withholdings for taxes, and 1 sale back to the company.