Insiders / Riefberg Vivian E.
Riefberg Vivian E.
CIK 1843139personinsider
Companies
2
First seen
Feb 10, 2021
Last activity
Jun 3, 2026
Companies
| Company | Shares held | Latest |
|---|---|---|
| Waystar Holding Corp. · WAY | 23,132 | — |
| Signify Health, Inc. · SGFY | 0 | — |
All securities held
1 position · latest reported per filing
Shares
| Company | Security | Shares |
|---|---|---|
| Waystar Holding Corp. | Common stock | 23,132 |
Ownership percentages elsewhere on the site count common and ordinary shares only, because that is what shares outstanding are measured in. Everything above is a real holding; not all of it is a share of the company.
Activity
InsidersInstitutions
This person's trades in company stock, across every company.| Date | Action | Company | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|
| Feb 16, 2021 | Buy Open-market buy | SGFY Signify Health, Inc. Class A Common Stock | $333.6K | +14K +175.59% | 21,816 | medium |
| Feb 12, 2021 | Grant Grant or award | SGFY Signify Health, Inc. Class B Common Stock | $242 | +24K | 24,173 | low |
| Jun 16, 2025 | Grant Grant or award | WAY Waystar Holding Corp. Common Stock | $0 | +5K +59.05% | 13,829 <0.01% of shares | low |
| Jun 3, 2026 | Grant Grant or award | WAY |