Foresite Capital Management V, LLC - Dec 29, 2022 Form 4 Insider Report for Theseus Pharmaceuticals, Inc. (THRX)

Role: 10%+ Owner
Signature: FORESITE CAPITAL MANAGEMENT V, LLC, By: /s/ James B. Tananbaum, Managing Member
Stock symbol: THRX
Transactions as of: Dec 29, 2022
Transactions value $: $2,500,000
Form type: 4
Date filed: 1/3/2023, 03:24 PM
Previous filing: Dec 5, 2022
Next filing: Apr 6, 2023

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	THRX	Common Stock	Purchase	$1.25M	+250K	+7.5%	$5.00	3.59M	Dec 29, 2022	See Footnote	F1
transaction	THRX	Common Stock	Purchase	$1.25M	+250K	+26.06%	$5.00	1.21M	Dec 29, 2022	See Footnote	F2

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

Explanation of Responses:

Id	Content
F1	The shares are owned directly by Foresite Capital Fund V, L.P. ("Fund V"). Foresite Capital Management V, LLC ("FCM V") is the general partner of Fund V and may be deemed to have sole voting and dispositive power over these shares. James B. Tananbaum ("Dr. Tananbaum") is the sole managing member of FCM V and may be deemed to have sole voting and dispositive power over these shares. Each Reporting Person disclaims the existence of a "group." Each of FCM V and Dr. Tananbaum disclaims beneficial ownership of these shares except to the extent of any pecuniary interest therein, and the filing of this report is not an admission that FCM V or Dr. Tananbaum is the beneficial owner of these shares for purposes of Section 16 or any other purpose.
F2	The shares are owned directly by Foresite Capital Opportunity Fund V, L.P. ("Opportunity Fund V"). Foresite Capital Opportunity Management V, LLC ("FCOM V") is the general partner of Opportunity Fund V and may be deemed to have sole voting and dispositive power over these shares. Dr. Tananbaum is the sole managing member of FCOM V and may be deemed to have sole voting and dispositive power over these shares. Each Reporting Person disclaims the existence of a "group." Each of FCOM V and Dr. Tananbaum disclaims beneficial ownership of these shares except to the extent of any pecuniary interest therein, and the filing of this report is not an admission that FCOM V or Dr. Tananbaum is the beneficial owner of these shares for purposes of Section 16 or any other purpose.

Content

The shares are owned directly by Foresite Capital Fund V, L.P. ("Fund V"). Foresite Capital Management V, LLC ("FCM V") is the general partner of Fund V and may be deemed to have sole voting and dispositive power over these shares. James B. Tananbaum ("Dr. Tananbaum") is the sole managing member of FCM V and may be deemed to have sole voting and dispositive power over these shares. Each Reporting Person disclaims the existence of a "group." Each of FCM V and Dr. Tananbaum disclaims beneficial ownership of these shares except to the extent of any pecuniary interest therein, and the filing of this report is not an admission that FCM V or Dr. Tananbaum is the beneficial owner of these shares for purposes of Section 16 or any other purpose.

The shares are owned directly by Foresite Capital Opportunity Fund V, L.P. ("Opportunity Fund V"). Foresite Capital Opportunity Management V, LLC ("FCOM V") is the general partner of Opportunity Fund V and may be deemed to have sole voting and dispositive power over these shares. Dr. Tananbaum is the sole managing member of FCOM V and may be deemed to have sole voting and dispositive power over these shares. Each Reporting Person disclaims the existence of a "group." Each of FCOM V and Dr. Tananbaum disclaims beneficial ownership of these shares except to the extent of any pecuniary interest therein, and the filing of this report is not an admission that FCOM V or Dr. Tananbaum is the beneficial owner of these shares for purposes of Section 16 or any other purpose.