Investor Certificate Design in PDF

As a private company, I need to organize my investors and create a stamped certificate for them.

Requirements:
- The certificates should be in a digital (PDF) format.
- The design style of the certificates should be formal and traditional.
- The certificates should prominently display the following information:
- Investor's name
- Amount of shares
- Date of acquisition
- Price per share

Skills and experience:
- Graphic Design
- Adobe Illustrator
- PDF Creation
- Formal Design Expertise

Please ensure that the final certificates are both professional and easy to read. I look forward to your proposals.