William A. Koefoed - Jul 24, 2024 Form 3 Insider Report for OneStream, Inc. (OS)

Role: Chief Financial Officer
Signature: /s/ Holly Koczot, attorney-in-fact
Stock symbol: OS
Transactions as of: Jul 24, 2024
Transactions value $: $0
Form type: 3
Date filed: 7/24/2024, 08:29 PM
Next filing: Jul 26, 2024

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	OS	Class A Common Stock						20K	Jul 24, 2024	Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
holding	OS	Common Units							Jul 24, 2024	Class A Common Stock	1.27M	$0.00	See footnote	F1, F2
holding	OS	Common Units							Jul 24, 2024	Class A Common Stock	175K	$0.00	See footnote	F1, F3
holding	OS	Stock Option (right to buy)							Jul 24, 2024	Class A Common Stock	275K	$10.65	Direct	F4
holding	OS	Stock Option (right to buy)							Jul 24, 2024	Class A Common Stock	459K	$10.65	Direct	F5
holding	OS	Stock Option (right to buy)							Jul 24, 2024	Class A Common Stock	444K	$14.51	Direct	F6
holding	OS	Stock Option (right to buy)							Jul 24, 2024	Class A Common Stock	232K	$20.00	Direct	F7

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The Common Units may be redeemed by the Reporting Person at any time on or following the closing of the Issuer's initial public offering for shares of Class D Common Stock on a 1:1 basis, and a corresponding number of shares of Class C Common Stock will be forfeited in connection with the redemption. The Common Units have no expiration date. The Class D Common Stock is in turn convertible at any time, at the holder's election, into Class A Common Stock on a 1:1 basis. Each outstanding share of Class D Common Stock will automatically convert into one share of Class A Common Stock on the first trading day following the seventh anniversary of the Issuer's initial public offering.
F2	Shares held of record by the Blazing Elk Management I, Inc. Blazing Elk Management I, Inc.is a subchapter S corporation controlled by the Reporting Person who has sole voting and dispositive power over the shares held by it.
F3	Shares held of record by the Blazing Elk Management II, Inc.. Blazing Elk Management II, Inc. is a subchapter S corporation controlled by the Reporting Person who has sole voting and dispositive power over the shares held by it.
F4	One-fourth of the shares subject to the option vested on February 15, 2023, and 1/48th of the shares subject to the option shall vest each month thereafter, subject to the Reporting Person continuing to be a service provider through the applicable vesting date.
F5	One-fourth of the shares subject to the option vested on February 15, 2024, and 1/48th of the shares subject to the option shall vest each month thereafter, subject to the Reporting Person continuing to be a service provider through the applicable vesting date.
F6	One-fourth of the shares subject to the option shall vest on February 15, 2025, and 1/48th of the shares subject to the option shall vest each month thereafter, subject to the Reporting Person continuing to be a service provider through the applicable vesting date.
F7	One-sixteenth of the shares subject to the option shall vest October 23, 2024, and one-sixteenth of the shares subject to the option shall vest every three months thereafter, subject to the Reporting Person continuing to be a service provider through the applicable vesting date.