Who
Michael Holder
Director
Company insider
Files Form 4 as: Director, Cytek Biosciences; Director, MDxHealth SA; Chief Financial Officer, Avita Medical; CEO, Allezoe Medical Holdings.
In numbers
- Trades disclosed
- 45
- Buys
- 1
- Sells
- 0
- Bought
- $0
- Sold
- $0
- Companies
- 4
- Companies where not an officer
- 2
- First trade
- 18 Feb 2011
- Last trade
- 18 Aug 2026
- Last filed
- 20 Aug 2026
Companies traded
Activity over time
1 Nov 2024 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 18 Aug 2026filed 20 Aug 2026 | CTKB Cytek BiosciencesLife-science tools | SEC FORM 4 Code M | —2,181 | filing |
| 18 Aug 2026filed 20 Aug 2026 | CTKB Cytek Biosciencesoption or derivative · Life-science tools | SEC FORM 4 Code M | —2,181 at $0.00 | filing |
| 18 Aug 2026filed 20 Aug 2026 | CTKB Cytek Biosciencesoption or derivative · Life-science tools | SEC FORM 4 Code M | —2,181 at $0.00 | filing |
| 18 Aug 2026filed 20 Aug 2026 | CTKB Cytek BiosciencesLife-science tools | SEC FORM 4 Code M | —2,181 | filing |
| 10 Jun 2026filed 12 Jun 2026 | CTKB Cytek BiosciencesLife-science tools | SEC FORM 4 Code M | —43,973 | filing |
| 10 Jun 2026filed 12 Jun 2026 | CTKB Cytek Biosciencesoption or derivative · Life-science tools | SEC FORM 4 Code A | —33,333 at $0.00 | filing |
| 10 Jun 2026filed 12 Jun 2026 | CTKB Cytek Biosciencesoption or derivative · Life-science tools | SEC FORM 4 Code A | —18,261 at $0.00 | filing |
| 10 Jun 2026filed 12 Jun 2026 | CTKB Cytek Biosciencesoption or derivative · Life-science tools | SEC FORM 4 Code A | —33,333 at $0.00 | filing |
| 10 Jun 2026filed 12 Jun 2026 | CTKB Cytek Biosciencesoption or derivative · Life-science tools | SEC FORM 4 Code A | —18,261 at $0.00 | filing |
| 10 Jun 2026filed 12 Jun 2026 | CTKB Cytek Biosciencesoption or derivative · Life-science tools | SEC FORM 4 Code M | —43,973 at $0.00 | filing |
| 10 Jun 2026filed 12 Jun 2026 | CTKB Cytek Biosciencesoption or derivative · Life-science tools | SEC FORM 4 Code M | —43,973 at $0.00 | filing |
| 10 Jun 2026filed 12 Jun 2026 | CTKB Cytek BiosciencesLife-science tools | SEC FORM 4 Code M | —43,973 | filing |
| 1 Jun 2026filed 3 Jun 2026 | MDXH MDxHealth SAoption or derivative · Diagnostics & Labs | SEC FORM 4 Code A | —10,000 at $0.00 | filing |
| 1 Jun 2026filed 3 Jun 2026 | MDXH MDxHealth SAoption or derivative · Diagnostics & Labs | SEC FORM 4 Code A | —10,000 at $0.00 | filing |
| 18 May 2026filed 20 May 2026 | CTKB Cytek BiosciencesLife-science tools | SEC FORM 4 Code M | —1,454 | filing |
| 18 May 2026filed 20 May 2026 | CTKB Cytek Biosciencesoption or derivative · Life-science tools | SEC FORM 4 Code M | —1,454 at $0.00 | filing |
| 18 May 2026filed 20 May 2026 | CTKB Cytek Biosciencesoption or derivative · Life-science tools | SEC FORM 4 Code M | —1,454 at $0.00 | filing |
| 18 May 2026filed 20 May 2026 | CTKB Cytek BiosciencesLife-science tools | SEC FORM 4 Code M | —1,454 | filing |
| 10 Mar 2026filed 12 Mar 2026 | CTKB Cytek BiosciencesLife-science tools | SEC FORM 4 Code M | —2,908 | filing |
| 10 Mar 2026filed 12 Mar 2026 | CTKB Cytek Biosciencesoption or derivative · Life-science tools | SEC FORM 4 Code M | —2,908 at $0.00 | filing |
News
No headline names them, or the companies they trade most, lately.