Insider · CIK 0001269428

WALSH MATTHEW M

Reports to the SEC for 6 companies · RADNOR, PA

sec.gov

Transactions

Companies

Filings

CIK

0001269428

Forms 4 and 5

Insider transactions

50 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-05-14	CERTCertara, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+15.8K sh	—	—	213,316
2026-05-14	CERTCertara, Inc. · Restricted Stock UnitsM Exercise/Conversion	Director	MExercise/Conversion	−15.8K sh	—	—	0
2026-05-14	CERTCertara, Inc. · Restricted Stock UnitsA Award	Director	AAward	+33.2K sh	—	—	33,222
2026-03-31	OGNOrganon & Co.M Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	+12K sh	—	—	202,707
2026-03-31	OGNOrganon & Co.F Tax Payment	Chief Financial Officer	FTax Payment	−4,127 sh	$5.70	−$23.5K	198,580
2026-03-31	OGNOrganon & Co.M Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	+21.5K sh	—	—	220,126
2026-03-31	OGNOrganon & Co.F Tax Payment	Chief Financial Officer	FTax Payment	−7,380 sh	$5.70	−$42.1K	212,746
2026-03-31	OGNOrganon & Co. · Restricted Stock UnitsA Award	Chief Financial Officer	AAward	+321K sh	—	—	321,368
2026-03-31	OGNOrganon & Co. · Restricted Stock UnitsA Award	Chief Financial Officer	AAward	+83.5K sh	—	—	83,472
2026-03-31	OGNOrganon & Co. · Restricted Stock UnitsM Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	−12K sh	—	—	0
2026-03-31	OGNOrganon & Co. · Restricted Stock UnitsM Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	−21.5K sh	—	—	43,094
2026-03-29	OGNOrganon & Co.M Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	+15.1K sh	—	—	195,822
2026-03-29	OGNOrganon & Co.F Tax Payment	Chief Financial Officer	FTax Payment	−5,162 sh	$5.84	−$30.1K	190,660
2026-03-29	OGNOrganon & Co. · Restricted Stock UnitsM Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	−15.1K sh	—	—	15,071
2026-02-27	OGNOrganon & Co.A Award	Chief Financial Officer	AAward	+42.6K sh	—	—	187,083
2026-02-27	OGNOrganon & Co.F Tax Payment	Chief Financial Officer	FTax Payment	−14.9K sh	$7.17	−$107K	172,196
2026-02-27	OGNOrganon & Co.A Award	Chief Financial Officer	AAward	+12K sh	—	—	184,216
2026-02-27	OGNOrganon & Co.F Tax Payment	Chief Financial Officer	FTax Payment	−4,117 sh	$7.23	−$29.8K	180,751
2025-05-21	CERTCertara, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+11.9K sh	—	—	197,559
2025-05-21	CERTCertara, Inc. · Restricted Stock UnitsM Exercise/Conversion	Director	MExercise/Conversion	−11.9K sh	—	—	0
2025-05-21	CERTCertara, Inc. · Restricted Stock UnitsA Award	Director	AAward	+15.8K sh	—	—	15,757
2025-05-05	OGNOrganon & Co.P Purchase	Chief Financial Officer	PPurchase	+11.4K sh	$8.82	+$101K	144,484
2025-03-31	OGNOrganon & Co.M Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	+15.1K sh	—	—	130,458
2025-03-31	OGNOrganon & Co.F Tax Payment	Chief Financial Officer	FTax Payment	−7,422 sh	$14.51	−$108K	123,036
2025-03-31	OGNOrganon & Co.M Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	+12K sh	—	—	135,082
2025-03-31	OGNOrganon & Co.F Tax Payment	Chief Financial Officer	FTax Payment	−5,933 sh	$14.51	−$86.1K	129,149
2025-03-31	OGNOrganon & Co.M Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	+7,754 sh	—	—	136,903
2025-03-31	OGNOrganon & Co.F Tax Payment	Chief Financial Officer	FTax Payment	−3,819 sh	$14.51	−$55.4K	133,084
2025-03-31	OGNOrganon & Co. · Stock Option (right to buy)A Award	Chief Financial Officer	AAward	+318K sh	—	—	317,656
2025-03-31	OGNOrganon & Co. · Restricted Stock UnitsA Award	Chief Financial Officer	AAward	+64.6K sh	—	—	64,640
2025-03-31	OGNOrganon & Co. · Restricted Stock UnitsM Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	−15.1K sh	—	—	30,142
2025-03-31	OGNOrganon & Co. · Restricted Stock UnitsM Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	−12K sh	—	—	12,047
2025-03-31	OGNOrganon & Co. · Restricted Stock UnitsM Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	−7,754 sh	—	—	0
2025-02-20	OGNOrganon & Co.A Award	Chief Financial Officer	AAward	+30.4K sh	—	—	122,388
2025-02-20	OGNOrganon & Co.F Tax Payment	Chief Financial Officer	FTax Payment	−10.7K sh	$14.92	−$159K	111,726
2025-02-20	OGNOrganon & Co.A Award	Chief Financial Officer	AAward	+5,570 sh	—	—	117,296
2025-02-20	OGNOrganon & Co.F Tax Payment	Chief Financial Officer	FTax Payment	−1,908 sh	$15.29	−$29.2K	115,388
2024-09-03	OGNOrganon & Co.A Award	Chief Financial Officer	AAward	+7,189 sh	—	—	95,515
2024-09-03	OGNOrganon & Co.F Tax Payment	Chief Financial Officer	FTax Payment	−3,541 sh	$20.35	−$72.1K	91,974
2024-05-21	CERTCertara, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+8,663 sh	—	—	185,631
2024-05-21	CERTCertara, Inc. · Restricted Stock UnitsM Exercise/Conversion	Director	MExercise/Conversion	−8,663 sh	—	—	0
2024-05-21	CERTCertara, Inc. · Restricted Stock UnitsA Award	Director	AAward	+11.9K sh	—	—	11,928
2024-05-04	OGNOrganon & Co.M Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	+8,310 sh	—	—	92,419
2024-05-04	OGNOrganon & Co.F Tax Payment	Chief Financial Officer	FTax Payment	−4,093 sh	$19.61	−$80.3K	88,326
2024-05-04	OGNOrganon & Co. · Restricted Stock UnitsM Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	−8,310 sh	—	—	0
2024-03-31	OGNOrganon & Co.M Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	+7,753 sh	—	—	81,815
2024-03-31	OGNOrganon & Co.F Tax Payment	Chief Financial Officer	FTax Payment	−3,819 sh	$18.80	−$71.8K	77,996
2024-03-31	OGNOrganon & Co.M Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	+12K sh	—	—	90,042
2024-03-31	OGNOrganon & Co.F Tax Payment	Chief Financial Officer	FTax Payment	−5,933 sh	$18.80	−$112K	84,109
2024-03-31	OGNOrganon & Co. · Restricted Stock UnitsM Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	−7,753 sh	—	—	7,754

Recent filings

Accepted (ET)
May 154
WALSH MATTHEW M0001269428-26-000002
SEC(opens sec.gov)
Apr 24
WALSH MATTHEW M0001628280-26-023157
SEC(opens sec.gov)
Mar 314
WALSH MATTHEW M0001628280-26-022377
SEC(opens sec.gov)
Mar 34
WALSH MATTHEW M0001628280-26-014228
SEC(opens sec.gov)
May 224
WALSH MATTHEW M0001415889-25-014194
SEC(opens sec.gov)

Companies

Address

C/O CERTARA, INC. 4 RADNOR CORPORATE CENTER, SUITE 350

RADNOR, PA, 19087