Mark Porter Sperry appears across SEC filings — Form ADV advisers, Form D, Reg A, and crowdfunding offerings. Mark Porter Sperry appears on 1 filing role across Form ADV (1).
| Filed | Source | Entity | Role | Location |
|---|---|---|---|---|
| 2025-03-24 | Form ADV | WELLINGTON SHIELDS & CO., LLC | MEMBER | NEW YORK, NY |