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Who

Matthew M. Walsh

Director

Company insider

Files Form 4 as: Director, Certara; Chief Financial Officer, Organon & Co; EVP, Chief Financial Officer, Allergan; EVP & Chief Financial Officer, Catalent; Director, Multi Color; Other, Gentek.

In numbers

Trades disclosed
175
Buys
5
Sells
7
Bought
$848K
Sold
$2.8M
Companies
6
Companies where not an officer
3
First trade
20 Mar 2006
Last trade
14 May 2026
Last filed
15 May 2026

Companies traded

Where they are an officer
OGN Organon & CoOfficer · Pharmaceuticals · last 31 Mar 20261 buy · 0 sells
AllerganOfficer · last 8 May 20203 buys · 0 sells
CatalentOfficer · last 24 Aug 20170 buys · 6 sells
Everywhere else they filed: board seats, 10% stakes, other companies
CERT CertaraDirector · Software · last 14 May 20261 buy · 1 sell
Multi ColorDirector · last 3 Oct 20160 buys · 0 sells
GentekOther · last 20 Mar 20060 buys · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
01Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
14 May 2026filed 15 May 2026CERT CertaraSoftwareSEC FORM 4 Code M—15,757 at $0.00filing
14 May 2026filed 15 May 2026CERT Certaraoption or derivative · SoftwareSEC FORM 4 Code M—15,757 at $0.00filing
14 May 2026filed 15 May 2026CERT Certaraoption or derivative · SoftwareSEC FORM 4 Code A—33,222 at $0.00filing
14 May 2026filed 15 May 2026CERT Certaraoption or derivative · SoftwareSEC FORM 4 Code M—15,757 at $0.00filing
14 May 2026filed 15 May 2026CERT Certaraoption or derivative · SoftwareSEC FORM 4 Code A—33,222 at $0.00filing
14 May 2026filed 15 May 2026CERT CertaraSoftwareSEC FORM 4 Code M—15,757 at $0.00filing
31 Mar 2026filed 2 Apr 2026OGN Organon & CoPharmaceuticalsSEC FORM 4 Code M—12,047 at $0.00filing
31 Mar 2026filed 2 Apr 2026OGN Organon & CoPharmaceuticalsSEC FORM 4 Code F$24K4,127 at $5.70filing
31 Mar 2026filed 2 Apr 2026OGN Organon & CoPharmaceuticalsSEC FORM 4 Code M—21,546 at $0.00filing
31 Mar 2026filed 2 Apr 2026OGN Organon & Cooption or derivative · PharmaceuticalsSEC FORM 4 Code A—321,368 at $0.00filing
31 Mar 2026filed 2 Apr 2026OGN Organon & Cooption or derivative · PharmaceuticalsSEC FORM 4 Code A—83,472 at $0.00filing
31 Mar 2026filed 2 Apr 2026OGN Organon & Cooption or derivative · PharmaceuticalsSEC FORM 4 Code M—12,047 at $0.00filing
31 Mar 2026filed 2 Apr 2026OGN Organon & Cooption or derivative · PharmaceuticalsSEC FORM 4 Code M—21,546 at $0.00filing
31 Mar 2026filed 2 Apr 2026OGN Organon & CoPharmaceuticalsSEC FORM 4 Code F$42K7,380 at $5.70filing
31 Mar 2026filed 2 Apr 2026OGN Organon & Cooption or derivative · PharmaceuticalsSEC FORM 4 Code A—321,368 at $0.00filing
31 Mar 2026filed 2 Apr 2026OGN Organon & Cooption or derivative · PharmaceuticalsSEC FORM 4 Code A—83,472 at $0.00filing
31 Mar 2026filed 2 Apr 2026OGN Organon & Cooption or derivative · PharmaceuticalsSEC FORM 4 Code M—12,047 at $0.00filing
31 Mar 2026filed 2 Apr 2026OGN Organon & Cooption or derivative · PharmaceuticalsSEC FORM 4 Code M—21,546 at $0.00filing
31 Mar 2026filed 2 Apr 2026OGN Organon & CoPharmaceuticalsSEC FORM 4 Code M—12,047 at $0.00filing
31 Mar 2026filed 2 Apr 2026OGN Organon & CoPharmaceuticalsSEC FORM 4 Code F$24K4,127 at $5.70filing

News

Critical Contrast: Organon & Co. (NYSE:OGN) & Xeris Biopharma (NASDAQ:XERS)OGN · tickerreport.com · 21 Oct 2026Head-To-Head Survey: Organon & Co. (NYSE:OGN) versus Xeris Biopharma (NASDAQ:XERS)OGN · themarketsdaily.com · 19 Oct 2026

0 headlines in the last 90 days name Matthew M. Walsh; 2 articles from the last 14 days about the 2 companies they traded most, at most three about any one of them.

Sectors

Technology2
Health Care1
Not placed9

Buys in green, sells in red, by the company’s sector.

Related people

Ferreira Juan Camilo ArjonaHead of R&D & CMO · Head of R&D & CMO at Organon & Co, filing Form 4 there in the last year
Juliana Papa DrinaneHead of Mfg & Supply · Head of Mfg & Supply at Organon & Co, filing Form 4 there in the last year
Shalini SharpDirector · Director at Organon & Co, filing Form 4 there in the last year
Helene D. GayleDirector · Director at Organon & Co, filing Form 4 there in the last year
Cynthia M. PattonDirector · Director at Organon & Co, filing Form 4 there in the last year
Donald J. TrumpPresident · Also traded OGN and CERT in the last 90 days
Kevin HernRepresentative, OK-01 · Also traded OGN in the last 90 days