Who
Jonathan Jay Mazelsky
Director
Company insider
Files Form 4 as: Director, Dentsply Sirona; Director, Insulet; President and CEO, IDEXX Laboratories.
In numbers
- Trades disclosed
- 415
- Buys
- 1
- Sells
- 13
- Bought
- $203K
- Sold
- $94.9M
- Companies
- 3
- Companies where not an officer
- 2
- First trade
- 1 Sep 2012
- Last trade
- 30 Sep 2026
- Last filed
- 2 Oct 2026
Companies traded
Activity over time
1 Nov 2024 – 1 Oct 2026
Buys above the line, sells below, each month. 3 lines have no legible date and are left out.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 30 Sep 2026filed 2 Oct 2026 | XRAY Dentsply Sironaoption or derivative · Medical Devices | SEC FORM 4 Code A | $30K3,323.433 at $9.03 | filing |
| 30 Sep 2026filed 2 Oct 2026 | PODD InsuletMedical Devices | SEC FORM 4 Code A | $18K141 at $130.47 | filing |
| 1 Jul 2026filed 2 Jul 2026 | PODD InsuletMedical Devices | SEC FORM 4 Code A | —1,355 at $0.00 | filing |
| 1 Jul 2026filed 2 Jul 2026 | PODD InsuletMedical Devices | SEC FORM 4 Code A | —1,355 at $0.00 | filing |
| 30 Jun 2026filed 1 Jul 2026 | XRAY Dentsply Sironaoption or derivative · Medical Devices | SEC FORM 4 Code A | $30K2,841.83 at $10.56 | filing |
| 30 Jun 2026filed 1 Jul 2026 | XRAY Dentsply Sironaoption or derivative · Medical Devices | SEC FORM 4 Code A | $30K2,841.83 at $10.56 | filing |
| 12 Jun 2026filed 18 Jun 2026 | XRAY Dentsply SironaMedical Devices | SEC FORM 4 Bought | $101K10,000 at $10.14 | filing |
| 12 Jun 2026filed 18 Jun 2026 | XRAY Dentsply SironaMedical Devices | SEC FORM 4 Bought | $101K10,000 at $10.14 | filing |
| 12 Jun 2026filed 15 Jun 2026 | XRAY Dentsply SironaMedical Devices | SEC FORM 4 Code A | $101K10,000 at $10.14 | filing |
| 12 Jun 2026filed 15 Jun 2026 | XRAY Dentsply SironaMedical Devices | SEC FORM 4 Code A | $101K10,000 at $10.14 | filing |
| 3 Jun 2026filed 5 Jun 2026 | XRAY Dentsply SironaMedical Devices | SEC FORM 4 Code A | —22,822 at $0.00 | filing |
| 3 Jun 2026filed 5 Jun 2026 | XRAY Dentsply SironaMedical Devices | SEC FORM 4 Code A | —22,822 at $0.00 | filing |
| 31 Mar 2026filed 2 Apr 2026 | XRAY Dentsply Sironaoption or derivative · Medical Devices | SEC FORM 4 Code A | $30K2,644.64 at $11.34 | filing |
| 31 Mar 2026filed 2 Apr 2026 | XRAY Dentsply Sironaoption or derivative · Medical Devices | SEC FORM 4 Code A | $30K2,644.64 at $11.34 | filing |
| 27 Feb 2026filed 2 Mar 2026 | IDXX IDEXX LaboratoriesDiagnostics & Labs | SEC FORM 4 Code M | $100K197 at $505.53 | filing |
| 27 Feb 2026filed 2 Mar 2026 | IDXX IDEXX Laboratoriesoption or derivative · Diagnostics & Labs | SEC FORM 4 Code M | —197 at $0.00 | filing |
| 27 Feb 2026filed 2 Mar 2026 | IDXX IDEXX Laboratoriesoption or derivative · Diagnostics & Labs | SEC FORM 4 Code M | —197 at $0.00 | filing |
| 27 Feb 2026filed 2 Mar 2026 | IDXX IDEXX LaboratoriesDiagnostics & Labs | SEC FORM 4 Code M | $100K197 at $505.53 | filing |
| 26 Feb 2026filed 2 Mar 2026 | IDXX IDEXX LaboratoriesDiagnostics & Labs | SEC FORM 4 Code M | $3.3M23,326 at $141.60 | filing |
| 26 Feb 2026filed 2 Mar 2026 | IDXX IDEXX LaboratoriesDiagnostics & Labs | SEC FORM 4 Sold | $2.4M3,660 at $658.92 | filing |
News
DENTSPLY SIRONA (NASDAQ:XRAY) & Envoy Medical (NASDAQ:COCH) Financial AnalysisXRAY · tickerreport.com · 19 Oct 2026IceCure Medical (NASDAQ:ICCM) and DENTSPLY SIRONA (NASDAQ:XRAY) Head-To-Head ReviewXRAY · themarketsdaily.com · 15 Oct 2026Dentsply Sirona Extends U.S. Distribution Network With Midwest Dental DealXRAY · rttnews.com · 6 Oct 2026
0 headlines in the last 90 days name Jonathan Jay Mazelsky; 3 articles from the last 14 days about the 2 companies they traded most, at most three about any one of them.