Bain Capital Life Sciences Investors, LLC - May 25, 2023 Form 4 Insider Report for Annexon, Inc. (ANNX)

Role
10%+ Owner
Signature
Bain Capital Life Sciences Investors, LLC, By: /s/ Ricky Sun, Title: Partner
Stock symbol
ANNX
Transactions as of
May 25, 2023
Transactions value $
$639,720
Form type
4
Date filed
5/30/2023, 09:54 PM
Previous filing
Dec 5, 2022
Next filing
Dec 29, 2023

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ANNX Common Stock Purchase $640K +300K +5.55% $2.13 5.7M May 25, 2023 See footnotes F1, F2, F3, F4, F5, F6, F7
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents 300,000 shares of Common Stock purchased by BCLS I Investco, LP ("BCLS I Investco") on May 25, 2023.
F2 The price reported in Column 4 is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $2.08 to $2.25, inclusive. The reporting persons undertake to provide to the Issuer, any securityholder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth herein.
F3 Represents shares of Common Stock held by Bain Capital Life Sciences Fund, L.P. ("BCLS Fund I"), BCLS I Investco and BCIP Life Sciences Associates, LP ("BCIPLS" and, together with BCLS Fund I and BCLS I Investco, the "Bain Capital Life Sciences Entities"). Following the completion of the transactions reported in footnote (1) above, BCLS Fund I, BCLS I Investco and BCIPLS each holds 2,940,627, 2,460,298 and 301,001 shares of Common Stock, respectively.
F4 Bain Capital Life Sciences Partners, LP ("BCLSP") is the general partner of BCLS Fund I. As a result, BCLSP may be deemed to share voting and dispositive power with respect to the securities held by BCLS Fund I. BCLSP disclaims beneficial ownership of such securities except to the extent of its pecuniary interest therein.
F5 BCLS I Investco GP, LLC ("BCLS I Investco GP"), whose manager is BCLS Fund I, is the general partner of BCLS I Investco. As a result, each of BCLSP, BCLS Fund I and BCLS I Investco GP may be deemed to share voting and dispositive power with respect to the securities held by BCLS I Investco. Each of BCLSP, BCLS Fund I and BCLS I Investco GP disclaims beneficial ownership of such securities except to the extent of its pecuniary interest therein.
F6 Boylston Coinvestors, LLC is the general partner of BCIPLS.
F7 Bain Capital Life Sciences Investors, LLC ("BCLSI") is the general partner of BCLSP and governs the investment strategy and decision making process with respect to investments held by BCIPLS. As a result, BCLSI may be deemed to share voting and dispositive power with respect to the securities held by the Bain Capital Life Sciences Entities. BCLSI disclaims beneficial ownership of such securities except to the extent of its pecuniary interest therein.