WALSH MATTHEW M

Former Officer at GENTEK INC · on record since Mar 22, 2006
CFO AND EXE. V.P. at SPECTRUM GROUP INTERNATIONAL, INC. · on record since Aug 10, 2006
Chief Financial Officer at Organon & Co. · on record since Apr 2, 2026
Director at Certara, Inc. · on record since May 15, 2026
Director at MULTI COLOR Corp · on record since Aug 20, 2015
See Remarks at Catalent, Inc. · on record since Jul 26, 2017
EVP, Chief Financial Officer at ALLERGAN INC · on record since Feb 22, 2018
VP, CFO & Asst. Treasurer at GENTEK INC · on record since Mar 8, 2005

Insider trading activity of WALSH MATTHEW M

Transactions on record: 167; since Nov 13, 2003

Open-market buys: 6; $851.1K

Open-market sells: 12; $2.8M

Companies traded: 6; last filing May 15, 2026

Figures computed from official regulatory filings — .

Companies where WALSH MATTHEW M has traded

Certara, Inc.18 tx · $292.7K · May 15, 2026
Organon & Co.74 tx · $3M · Apr 2, 2026
ALLERGAN INC11 tx · $7.5M · May 11, 2020
Catalent, Inc.50 tx · $15.2M · Aug 28, 2017
MULTI COLOR Corp2 tx · Oct 5, 2016
GENTEK INC12 tx · $53.1K · Mar 22, 2006

Track record of WALSH MATTHEW M

Statistical track record

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Open-market buys: 6

Last buy: May 5, 2025

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Transaction history of WALSH MATTHEW M

Co-insiders of WALSH MATTHEW M

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
Certara, Inc.Listing on record	May 15, 2026	AwardD (derivative)	33,222	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Certara, Inc.Listing on record	May 15, 2026	ExerciseD (derivative)	-15,757	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Certara, Inc.Listing on record	May 15, 2026	Exercise	15,757	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Organon & Co.Listing on record	Apr 2, 2026	Other	-4,127	5.70 USD	$23.5K		SEC
Organon & Co.Listing on record	Apr 2, 2026	Exercise	21,546	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Organon & Co.Listing on record	Apr 2, 2026	ExerciseD (derivative)	-12,047	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Organon & Co.Listing on record	Apr 2, 2026	AwardD (derivative)	83,472	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Organon & Co.Listing on record	Apr 2, 2026	AwardD (derivative)	321,368	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Organon & Co.Listing on record	Apr 2, 2026	Other	-7,380	5.70 USD	$42.1K		SEC
Organon & Co.Listing on record	Apr 2, 2026	Exercise	12,047	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Organon & Co.Listing on record	Apr 2, 2026	ExerciseD (derivative)	-21,546	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Organon & Co.Listing on record	Mar 31, 2026	ExerciseD (derivative)	-15,071	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Organon & Co.Listing on record	Mar 31, 2026	Other	-5,162	5.84 USD	$30.1K		SEC
Organon & Co.Listing on record	Mar 31, 2026	Exercise	15,071	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Organon & Co.Listing on record	Mar 3, 2026	Other	-4,117	7.23 USD	$29.8K		SEC
Organon & Co.Listing on record	Mar 3, 2026	Other	-14,887	7.17 USD	$106.7K		SEC
Organon & Co.Listing on record	Mar 3, 2026	Award	12,020	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Organon & Co.Listing on record	Mar 3, 2026	Award	42,599	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Certara, Inc.Listing on record	May 22, 2025	ExerciseD (derivative)	-11,928	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Certara, Inc.Listing on record	May 22, 2025	AwardD (derivative)	15,757	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Certara, Inc.Listing on record	May 22, 2025	Exercise	11,928	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Organon & Co.Listing on record	May 6, 2025	Buy	11,400	8.82 USD	$100.5K	conv 51First in 12mo	SEC
Organon & Co.Listing on record	Apr 2, 2025	Other	-7,422	14.51 USD	$107.7K		SEC
Organon & Co.Listing on record	Apr 2, 2025	AwardD (derivative)	64,640	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Organon & Co.Listing on record	Apr 2, 2025	AwardD (derivative)	317,656	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
Certara, Inc.Listing on record	May 15, 2026	AwardD (derivative)	33,222	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Certara, Inc.Listing on record	May 15, 2026	ExerciseD (derivative)	-15,757	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Certara, Inc.Listing on record	May 15, 2026	Exercise	15,757	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Organon & Co.Listing on record	Apr 2, 2026	Other	-4,127	5.70 USD	$23.5K		SEC
Organon & Co.Listing on record	Apr 2, 2026	Exercise	21,546	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Organon & Co.Listing on record	Apr 2, 2026	ExerciseD (derivative)	-12,047	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Organon & Co.Listing on record	Apr 2, 2026	AwardD (derivative)	83,472	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Organon & Co.Listing on record	Apr 2, 2026	AwardD (derivative)	321,368	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Organon & Co.Listing on record	Apr 2, 2026	Other	-7,380	5.70 USD	$42.1K		SEC
Organon & Co.Listing on record	Apr 2, 2026	Exercise	12,047	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Organon & Co.Listing on record	Apr 2, 2026	ExerciseD (derivative)	-21,546	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Organon & Co.Listing on record	Mar 31, 2026	ExerciseD (derivative)	-15,071	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Organon & Co.Listing on record	Mar 31, 2026	Other	-5,162	5.84 USD	$30.1K		SEC
Organon & Co.Listing on record	Mar 31, 2026	Exercise	15,071	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Organon & Co.Listing on record	Mar 3, 2026	Other	-4,117	7.23 USD	$29.8K		SEC
Organon & Co.Listing on record	Mar 3, 2026	Other	-14,887	7.17 USD	$106.7K		SEC
Organon & Co.Listing on record	Mar 3, 2026	Award	12,020	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Organon & Co.Listing on record	Mar 3, 2026	Award	42,599	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Certara, Inc.Listing on record	May 22, 2025	ExerciseD (derivative)	-11,928	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Certara, Inc.Listing on record	May 22, 2025	AwardD (derivative)	15,757	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Certara, Inc.Listing on record	May 22, 2025	Exercise	11,928	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Organon & Co.Listing on record	May 6, 2025	Buy	11,400	8.82 USD	$100.5K	conv 51First in 12mo	SEC
Organon & Co.Listing on record	Apr 2, 2025	Other	-7,422	14.51 USD	$107.7K		SEC
Organon & Co.Listing on record	Apr 2, 2025	AwardD (derivative)	64,640	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Organon & Co.Listing on record	Apr 2, 2025	AwardD (derivative)	317,656	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC