Thierer Mark

President & CEO at Catamaran Corp · on record since Aug 27, 2008
Director at Discover Financial Services · on record since Apr 19, 2013
President & CEO at COTHERIX INC · on record since Jul 23, 2015
Interim Chief Exec Officer at DENTSPLY SIRONA Inc. · on record since Oct 17, 2017
Director at XERIS PHARMACEUTICALS INC · on record since Oct 2, 2019
Director at Senior Connect Acquisition Corp. I · on record since Dec 10, 2020
President, Phys. Inter. Group at Veradigm Inc. · on record since Aug 2, 2005
Director at P3 Health Partners Inc. · on record since Dec 7, 2021

Insider trading activity of Thierer Mark

Transactions on record: 275; since Aug 2, 2005

Open-market buys: 1; $5.1M

Open-market sells: 74; $84.4M

Companies traded: 7; last filing Jan 23, 2026

Figures computed from official regulatory filings — .

Companies where Thierer Mark has traded

P3 Health Partners Inc.6 tx · Jan 23, 2026
Discover Financial Services11 tx · May 15, 2023
XERIS PHARMACEUTICALS INC2 tx · Jun 4, 2020
DENTSPLY SIRONA Inc.5 tx · $6M · Feb 27, 2018
COTHERIX INC11 tx · $19.1M · Jul 23, 2015
Catamaran Corp201 tx · $123M · Mar 11, 2015
Veradigm Inc.39 tx · $6.7M · Sep 12, 2006

Track record of Thierer Mark

Insufficient history for a statistical track record (fewer than 5 open-market buys).

Transaction history of Thierer Mark

Co-insiders of Thierer Mark

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Src
P3 Health Partners Inc.Listing on record	Jan 23, 2026	Award	4,000	0.00 USD	—	SEC
P3 Health Partners Inc.Listing on record	Aug 8, 2025	Award	4,000	0.00 USD	—	SEC
P3 Health Partners Inc.Listing on record	Jun 10, 2024	AwardD (derivative)	965,279	0.00 USD	—	SEC
P3 Health Partners Inc.Listing on record	Jan 25, 2024	Award	433,121	0.00 USD	—	SEC
Discover Financial ServicesListing unverified	May 15, 2023	Award	1,774	0.00 USD	—	SEC
Discover Financial ServicesListing unverified	May 23, 2022	Award	1,634	0.00 USD	—	SEC
P3 Health Partners Inc.Listing on record	Mar 28, 2022	AwardD (derivative)	200,000	0.00 USD	—	SEC
P3 Health Partners Inc.Listing on record	Mar 28, 2022	AwardD (derivative)	171,069	0.00 USD	—	SEC
Discover Financial ServicesListing unverified	May 6, 2021	Award	1,291	0.00 USD	—	SEC
XERIS PHARMACEUTICALS INCListing on record	Jun 4, 2020	AwardD (derivative)	11,228	0.00 USD	—	SEC
Discover Financial ServicesListing unverified	May 18, 2020	Award	3,824	0.00 USD	—	SEC
XERIS PHARMACEUTICALS INCListing on record	Oct 2, 2019	AwardD (derivative)	19,650	0.00 USD	—	SEC
Discover Financial ServicesListing unverified	May 20, 2019	Award	1,920	0.00 USD	—	SEC
Discover Financial ServicesListing unverified	May 4, 2018	Award	1,985	0.00 USD	—	SEC
DENTSPLY SIRONA Inc.Listing on record	Feb 27, 2018	Other	-16,128	57.18 USD	$922.2K	SEC
DENTSPLY SIRONA Inc.Listing on record	Jan 16, 2018	Award	56.18	0.00 USD	—	SEC
DENTSPLY SIRONA Inc.Listing on record	Nov 14, 2017	Buy	77,000	66.04 USD	$5.1M	SEC
DENTSPLY SIRONA Inc.Listing on record	Oct 17, 2017	Award	61.75	0.00 USD	—	SEC
DENTSPLY SIRONA Inc.Listing on record	Oct 2, 2017	Award	42,208	0.00 USD	—	SEC
Discover Financial ServicesListing unverified	May 12, 2017	Award	2,324	0.00 USD	—	SEC
Discover Financial ServicesListing unverified	May 16, 2016	Award	2,350	0.00 USD	—	SEC
COTHERIX INCListing unverified	Jul 23, 2015	OtherD (derivative)	-181,046	—	—	SEC
COTHERIX INCListing unverified	Jul 23, 2015	OtherD (derivative)	-69,236	—	—	SEC
COTHERIX INCListing unverified	Jul 23, 2015	OtherD (derivative)	-9,458	—	—	SEC
COTHERIX INCListing unverified	Jul 23, 2015	OtherD (derivative)	-135,450	—	—	SEC

Company	Filed	Type	Qty	Price	Value · USD	Src
P3 Health Partners Inc.Listing on record	Jan 23, 2026	Award	4,000	0.00 USD	—	SEC
P3 Health Partners Inc.Listing on record	Aug 8, 2025	Award	4,000	0.00 USD	—	SEC
P3 Health Partners Inc.Listing on record	Jun 10, 2024	AwardD (derivative)	965,279	0.00 USD	—	SEC
P3 Health Partners Inc.Listing on record	Jan 25, 2024	Award	433,121	0.00 USD	—	SEC
Discover Financial ServicesListing unverified	May 15, 2023	Award	1,774	0.00 USD	—	SEC
Discover Financial ServicesListing unverified	May 23, 2022	Award	1,634	0.00 USD	—	SEC
P3 Health Partners Inc.Listing on record	Mar 28, 2022	AwardD (derivative)	200,000	0.00 USD	—	SEC
P3 Health Partners Inc.Listing on record	Mar 28, 2022	AwardD (derivative)	171,069	0.00 USD	—	SEC
Discover Financial ServicesListing unverified	May 6, 2021	Award	1,291	0.00 USD	—	SEC
XERIS PHARMACEUTICALS INCListing on record	Jun 4, 2020	AwardD (derivative)	11,228	0.00 USD	—	SEC
Discover Financial ServicesListing unverified	May 18, 2020	Award	3,824	0.00 USD	—	SEC
XERIS PHARMACEUTICALS INCListing on record	Oct 2, 2019	AwardD (derivative)	19,650	0.00 USD	—	SEC
Discover Financial ServicesListing unverified	May 20, 2019	Award	1,920	0.00 USD	—	SEC
Discover Financial ServicesListing unverified	May 4, 2018	Award	1,985	0.00 USD	—	SEC
DENTSPLY SIRONA Inc.Listing on record	Feb 27, 2018	Other	-16,128	57.18 USD	$922.2K	SEC
DENTSPLY SIRONA Inc.Listing on record	Jan 16, 2018	Award	56.18	0.00 USD	—	SEC
DENTSPLY SIRONA Inc.Listing on record	Nov 14, 2017	Buy	77,000	66.04 USD	$5.1M	SEC
DENTSPLY SIRONA Inc.Listing on record	Oct 17, 2017	Award	61.75	0.00 USD	—	SEC
DENTSPLY SIRONA Inc.Listing on record	Oct 2, 2017	Award	42,208	0.00 USD	—	SEC
Discover Financial ServicesListing unverified	May 12, 2017	Award	2,324	0.00 USD	—	SEC
Discover Financial ServicesListing unverified	May 16, 2016	Award	2,350	0.00 USD	—	SEC
COTHERIX INCListing unverified	Jul 23, 2015	OtherD (derivative)	-181,046	—	—	SEC
COTHERIX INCListing unverified	Jul 23, 2015	OtherD (derivative)	-69,236	—	—	SEC
COTHERIX INCListing unverified	Jul 23, 2015	OtherD (derivative)	-9,458	—	—	SEC
COTHERIX INCListing unverified	Jul 23, 2015	OtherD (derivative)	-135,450	—	—	SEC