Matthew M Walsh

Date	Company	Security	Transaction	Code	Indirect	10b5-1	$Price	#Shares	$Value	#Remaining
20 Feb 25	OGN Organon & Co.	Common Stock	Payment of exercise	Dispose F	No	No	15.29	1,908	29.17 k	115,388
20 Feb 25	OGN Organon & Co.	Common Stock	Grant	Acquire A	No	No	0	5,570	0.00	117,296
20 Feb 25	OGN Organon & Co.	Common Stock	Payment of exercise	Dispose F	No	No	14.92	10,662	159.08 k	111,726
20 Feb 25	OGN Organon & Co.	Common Stock	Grant	Acquire A	No	No	0	30,414	0.00	122,388
3 Sep 24	OGN Organon & Co.	Common Stock	Payment of exercise	Dispose F	No	No	20.35	3,541	72.06 k	91,974
3 Sep 24	OGN Organon & Co.	Common Stock	Grant	Acquire A	No	No	0	7,189	0.00	95,515
21 May 24	CERT Certara	Common Stock	Option exercise	Acquire M	No	No	0	8,663	0.00	185,631
21 May 24	CERT Certara	RSU Common Stock	Grant	Acquire A	No	No	0	11,928	0.00	11,928
21 May 24	CERT Certara	RSU Common Stock	Option exercise	Dispose M	No	No	0	8,663	0.00	0
4 May 24	OGN Organon & Co.	Common Stock	Payment of exercise	Dispose F	No	No	19.61	4,093	80.26 k	88,326

Data from 3, 4 and 5 filings. Values as filed, not updated for current price.