Term Sheet Modeler

Term Sheet Modeler

Term Sheet Modeler

Last updated

Feb 3, 2026

Mantle’s AI‑powered Term Sheet Modeler lets you drop in a term sheet and see a pro forma cap table in seconds, so you can understand dilution before you sign anything. It’s built for founders who want clear, visual answers to “what happens to my ownership if we do this round on these terms?” without living in a fragile spreadsheet.

What the Term Sheet Modeler does

  • Reads key economics from your term sheet (round size, pre/post‑money valuation, option pool, investor ownership, convertibles, etc.) using Mantle’s AI engine.

  • Builds a pro forma cap table that shows how founder, employee, and investor ownership changes under that term sheet.

  • Lets you adjust assumptions (like pool size or SAFE amounts) and instantly see the impact, instead of manually rebuilding formulas.

If you want access, just email your Mantle contact or support@withmantle.com, and the team can enable the feature in your workspace.

Why use it before signing a term sheet

Founders often underestimate dilution from:

  • New preferred rounds (Seed, Series A, etc.)

  • Option pool increases negotiated as part of the round

  • Existing SAFEs and notes converting into equity

The Term Sheet Modeler helps you:

  • See pre-money vs. post-money ownership for founders, employees, and investors.

  • Understand how different pool sizes or SAFE stacks change your final dilution.

  • Compare multiple draft term sheets or scenarios side by side so you can negotiate based on data, not gut feel.

Getting access to the Term Sheet Modeler

If you do not see the Term Sheet Modeler button on your cap table page:

  • Email support@withmantle.com and mention that you'd like access to the Term Sheet Modeler.

  • The team will confirm eligibility based on your plan and enable it in your workspace.

How to use the Term Sheet Modeler

  1. Open the Term Sheet Modeler
    • From the left-hand navigation bar, go to Cap Table.

    • Towards the top right corner, click on Term Sheet Modeler.

  2. Upload or input your term sheet
    • Upload a term sheet document (PDF) for the upcoming round, or

    • Fill in the form with key terms.

  3. View the pro forma cap table
    • Once all information has been uploaded, click on the Pro Forma tab at the top.

    • Mantle outputs a pro forma cap table that shows ownership after the round closes.

  4. Review dilution and ownership
    • Review key metrics such as:

      • Founder ownership pre-round versus post-round

      • Employee/option pool percentage

      • Lead investor and other investors' stakes

      • Total dilution from SAFEs/notes plus the new round

  5. Adjust assumptions and re-run
    • Go back to the Scenario tab to change inputs like round size, valuation, option pool size, etc.

Term Sheet Modeler vs. other modeling tools in Mantle

Term Sheet Modeler
  • Purpose-built for modeling upcoming financing rounds using actual term sheets.

  • Ideal when you are in active fundraising or negotiating terms.

Include Drafts
  • Lets you include in-flight drafts (e.g. option grants) in your cap table to see their impact.

  • Helpful for planning hires, grants, and smaller changes without a full term sheet.