Insiders / Heinlein Matthew Ian
Heinlein Matthew Ian
CIK 2137624personinsider
Companies
1
First seen
Jun 9, 2026
Last activity
Aug 6, 2026
Companies
| Company | Shares held | Latest |
|---|---|---|
| Daniel Herz · WHK | 43,971 | — |
All securities held
1 position · latest reported per filing
Shares
| Company | Security | Shares |
|---|---|---|
| Daniel Herz | Class A common stock | 43,971 |
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 |
|---|---|---|---|---|---|---|
| Aug 4, 2026 | Grant Grant or award | WHK Daniel Herz Class A Common Stock | $0 | +38K +687.45% | 43,971 | low |
| Jun 10, 2026 | Other Sold to issuer | WHK Daniel Herz Series D Preferred Stock | — | -100 -100.00% | 0 | low |
| Jun 8, 2026 | Grant Grant or award | WHK Daniel Herz Class A Common Stock | — | +6K | 5,584 | low |
| Mar 2, 2026 | Grant Grant or award | WHK Daniel Herz Series D Preferred Stock |