Who
Mark Thierer
Director
Company insider
Files Form 4 as: Director, P3 Health Partners; Director, Discover Financial Services; Director, Xeris Pharmaceuticals; Interim Chief Exec Officer, Dentsply Sirona; President & CEO, Catamaran; President, Physicians Interact, Allscripts Healthcare Solutions.
In numbers
- Trades disclosed
- 268
- Buys
- 1
- Sells
- 46
- Bought
- $5.1M
- Sold
- $84.4M
- Companies
- 6
- Companies where not an officer
- 3
- First trade
- 2 Dec 2004
- Last trade
- 6 Aug 2025
- Last filed
- 23 Jan 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 | |
|---|---|---|---|---|
| 6 Aug 2025filed 23 Jan 2026 | PIII P3 Health PartnersProviders & Facilities | SEC FORM 4 Code A | —4,000 at $0.00 | filing |
| 6 Aug 2025filed 23 Jan 2026 | PIII P3 Health PartnersProviders & Facilities | SEC FORM 4 Code A | —4,000 at $0.00 | filing |
| 6 Aug 2025filed 8 Aug 2025 | PIII P3 Health PartnersProviders & Facilities | SEC FORM 4 Code A | —4,000 at $0.00 | filing |
| 6 Jun 2024filed 10 Jun 2024 | PIII P3 Health Partnersoption or derivative · Providers & Facilities | SEC FORM 4 Code A | —965,279 at $0.00 | filing |
| 23 Oct 2023filed 25 Jan 2024 | PIII P3 Health PartnersProviders & Facilities | SEC FORM 4 Code A | —433,121 at $0.00 | filing |
| 11 May 2023filed 15 May 2023 | Discover Financial Services | SEC FORM 4 Code A | —1,774 at $0.00 | filing |
| 19 May 2022filed 23 May 2022 | Discover Financial Services | SEC FORM 4 Code A | —1,634 at $0.00 | filing |
| 24 Mar 2022filed 28 Mar 2022 | PIII P3 Health Partnersoption or derivative · Providers & Facilities | SEC FORM 4 Code A | —171,069 at $0.00 | filing |
| 24 Mar 2022filed 28 Mar 2022 | PIII P3 Health Partnersoption or derivative · Providers & Facilities | SEC FORM 4 Code A | —200,000 at $0.00 | filing |
| 5 May 2021filed 6 May 2021 | Discover Financial Services | SEC FORM 4 Code A | —1,291 at $0.00 | filing |
| 4 Jun 2020filed 4 Jun 2020 | Xeris Pharmaceuticalsoption or derivative | SEC FORM 4 Code A | —11,228 at $0.00 | filing |
| 14 May 2020filed 18 May 2020 | Discover Financial Services | SEC FORM 4 Code A | —3,824 at $0.00 | filing |
| 30 Sep 2019filed 2 Oct 2019 | Xeris Pharmaceuticalsoption or derivative | SEC FORM 4 Code A | —19,650 at $0.00 | filing |
| 16 May 2019filed 20 May 2019 | Discover Financial Services | SEC FORM 4 Code A | —1,920 at $0.00 | filing |
| 2 May 2018filed 4 May 2018 | Discover Financial Services | SEC FORM 4 Code A | —1,985 at $0.00 | filing |
| 26 Feb 2018filed 27 Feb 2018 | XRAY Dentsply SironaMedical Devices | SEC FORM 4 Code F | $922K16,128 at $57.18 | filing |
| 12 Jan 2018filed 16 Jan 2018 | XRAY Dentsply SironaMedical Devices | SEC FORM 4 Code A | —56.18 at $0.00 | filing |
| 13 Nov 2017filed 14 Nov 2017 | XRAY Dentsply SironaMedical Devices | SEC FORM 4 Bought | $5.1M77,000 at $66.04 | filing |
| 13 Oct 2017filed 17 Oct 2017 | XRAY Dentsply SironaMedical Devices | SEC FORM 4 Code A | —61.75 at $0.00 | filing |
| 28 Sep 2017filed 2 Oct 2017 | XRAY Dentsply SironaMedical Devices | SEC FORM 4 Code A | —42,208 at $0.00 | 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 Mark Thierer; 3 articles from the last 14 days about the 1 company they traded most, at most three about any one of them.