Quick Takeaways
- Donald S. MacKenzie has 1 issuer position tracked on this page.
- Estimated disclosed ownership value is not available.
- Recent insider filing activity is available below.
- Info
- Insider Ownership
Insider Trading & Ownership of Donald S. MacKenzie
- Location
- Miami Beach, FL
- Signature
- /s/ Donald MacKenzie
- All Insider Reports
- All Insider Reports
Follow Filing Activity
Follow Donald S. MacKenzie and return when a new Insider Trading filing changes the record on this page.
This uses the existing product follow flow to surface future filing-backed changes without guessing what they mean.
What Changed
- Largest disclosed position: BRAIN SCIENTIFIC INC. ().
- Past-year value change for that position: .
Why This Matters
- This page translates Forms 3/4/5 into a quick ownership context before you inspect each transaction row.
- You can cross-check role, issuer, and filing chronology directly against the SEC source.
Source Evidence
Filed on Form 4
See Original Filing
Insider ownership context is sourced from SEC Forms 3, 4, and 5.
Ownership of Donald S. MacKenzie
| Symbol | Company | Relationship | Holdings Value | Past Year Net Change | Change % | Report Period |
|---|---|---|---|---|---|---|
| BRSF | BRAIN SCIENTIFIC INC. | Director | 19 Aug 2022 |
Insider Transactions Reported by Donald S. MacKenzie:
| Sym | Company | Class | Transaction | % | Value $ | * Price $ | Shares | Shares After | Date | Ownership |
|---|
* An asterisk sign (*) next to the price indicates that the price is likely invalid.