Who
Michael Heinrich
Executive Chairman
Company insider
Files Form 4 as: Executive Chairman, ZeroStack.
In numbers
- Trades disclosed
- 8
- Buys
- 1
- Sells
- 0
- Bought
- $6.9M
- Sold
- $0
- Companies
- 1
- Companies where not an officer
- 0
- First trade
- 23 Oct 2025
- Last trade
- 20 Jul 2026
- Last filed
- 20 Jul 2026
Companies traded
Activity over time
1 Jul – 1 Oct
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 20 Jul 2026filed 20 Jul 2026 | ZSTK ZeroStackHealth Care Distribution | SEC FORM 4 Bought | $3.5M4,608,575 at $0.7549 | filing |
| 20 Jul 2026filed 20 Jul 2026 | ZSTK ZeroStackoption or derivative · Health Care Distribution | SEC FORM 4 Code A | —500,000 at $0.00 | filing |
| 20 Jul 2026filed 20 Jul 2026 | ZSTK ZeroStackoption or derivative · Health Care Distribution | SEC FORM 4 Code A | —500,000 at $0.00 | filing |
| 20 Jul 2026filed 20 Jul 2026 | ZSTK ZeroStackHealth Care Distribution | SEC FORM 4 Bought | $3.5M4,608,575 at $0.75 | filing |
| 31 Mar 2026filed 2 Apr 2026 | ZSTK ZeroStackoption or derivative · Health Care Distribution | SEC FORM 4 Code J | —4,902,220 | filing |
| 31 Mar 2026filed 2 Apr 2026 | ZSTK ZeroStackoption or derivative · Health Care Distribution | SEC FORM 4 Code J | —4,902,220 | filing |
| 19 Dec 2025filed 22 Dec 2025 | ZSTK ZeroStackoption or derivative · Health Care Distribution | SEC FORM 4 Code A | —471,208 at $0.00 | filing |
| 23 Oct 2025filed 27 Oct 2025 | ZSTK ZeroStackoption or derivative · Health Care Distribution | SEC FORM 4 Code X | —4,902,220 | filing |
News
No headline names them, or the companies they trade most, lately.