Insider Buying and Selling - OS

Transaction	Filed	Name	Type	Shares @ Price	Value	Balance change		Ownership
03/11/2026 10b5-1	03/12/2026	Leshinski Scott President Officer	Sell	-7,412 @ $23.68	($175,516.16)	278,458	(-2.59%)	Direct
03/11/2026 10b5-1	03/12/2026	Mcintyre Pamela Chief Accounting Officer Officer	Sell	-2,015 @ $23.68	($47,715.20)	55,800	(-3.49%)	Direct
01/08/2026 10b5-1	01/09/2026	Mcintyre Pamela Chief Accounting Officer Officer	Sell	-6,505 @ $23.58	($153,387.90)	58,847	(-9.95%)	Direct
12/15/2025 10b5-1	12/16/2025	Koefoed William A Chief Financial Officer CFO	Sell	-9,571 @ $17.73	($169,693.83)	206,127	(-4.44%)	Direct
09/15/2025 10b5-1	09/16/2025	Koefoed William A Chief Financial Officer CFO	Sell	-8,943 @ $19.03	($170,185.29)	221,983	(-3.87%)	Direct
06/16/2025 10b5-1	06/18/2025	Koefoed William A Chief Financial Officer CFO	Sell	-9,354 @ $27.90	($260,976.60)	237,839	(-3.78%)	Direct
06/11/2025	06/12/2025	Hohenstein Ken Chief Revenue Officer Officer	Sell	-6,280 @ $28.23	($177,284.40)	1,003,163	(-0.62%)	Direct
06/11/2025	06/12/2025	Koefoed William A Chief Financial Officer CFO	Sell	-6,501 @ $28.23	($183,523.23)	247,193	(-2.56%)	Direct

Onestream, Inc. - OS