INTRODUCTION
This Rule 13e-3 Transaction Statement on Schedule 13E-3, together with the
attached exhibits (this Statement) is being filed by NGM Biopharmaceuticals, Inc. (NGM Bio or the Company), David J. Woodhouse, Ph.D. and William J. Rieflin and relates to a tender offer (the
Offer) by Atlas Neon Merger Sub, Inc., a Delaware corporation (Purchaser), and wholly owned subsidiary of Atlas Neon Parent, Inc., a Delaware corporation (Parent), to purchase all of the
issued and outstanding shares of common stock, par value $0.001 per share of NGM Bio (the Common Stock) that is the subject of the Rule 13e-3 transaction described below (the
Shares) (other than (i) Shares owned by NGM Bio immediately prior to the effective time of the Merger (as defined below), (ii) Shares owned, directly or indirectly, by the TCG Stockholders (as defined below), the
Rollover Stockholders (as defined below), Parent, Purchaser or any other subsidiary of Parent at the commencement of the Offer and that are owned by the TCG Stockholders, the Rollover Stockholders, Parent, Purchaser or any other subsidiary of Parent
immediately prior to the effective time of the Merger), for a price of $1.55 per Share in cash (the Offer Price), upon the terms and subject to the conditions set forth in the Offer to Purchase, dated March 8, 2024 (as
amended or supplemented from time to time, the Offer to Purchase), which is annexed to and filed with this Statement as Exhibit (a)(1)(A), and in the related Letter of Transmittal (as amended or supplemented from time to time, the
Letter of Transmittal), which is annexed to and filed with this Statement as Exhibit (a)(1)(B), which, together with any amendments or supplements thereto, collectively constitute the Offer. The Offer is being
made pursuant to that certain Agreement and Plan of Merger, dated as of February 25, 2024, by and among NGM Bio, Purchaser and Parent (the Merger Agreement). The Merger Agreement provides, among other things, for the terms
and conditions of the Offer and the subsequent merger of Purchaser with and into NGM Bio (the Merger and together with the Offer and the other transactions contemplated by the Merger Agreement, the Transactions)
in accordance with Section 251(h) of the Delaware General Corporation Law (the DGCL).
The information contained in the Tender
Offer Statement filed under cover of Schedule TO (as amended or supplemented from time to time, the Schedule TO) filed by Purchaser and Parent with the U.S. Securities and Exchange Commission (the SEC) on
March 8, 2024, including the Offer to Purchase, and the Solicitation/Recommendation Statement on Schedule 14D-9 filed by the Company with the SEC on March 8, 2024, a copy of which is attached
hereto as Exhibit (a)(1)(G) (as amended or supplemented from time to time, the Schedule 14D-9), is incorporated herein by reference and, except as described below, the responses to each
item in this Statement are qualified in their entirety by the information contained in the Schedule TO, the Offer to Purchase and the Schedule 14D-9. The cross references identified herein are being supplied
pursuant to General Instruction G to Schedule 13E-3 and indicate the location in the Schedule TO and Schedule 14D-9 of the information required to be included in
response to the respective Items of this Statement.
Concurrently with the execution of the Merger Agreement, Parent and Purchaser entered into a rollover
agreement, dated as of the date of the Merger Agreement (the TCG Rollover Agreement), with The Column Group, LP, The Column Group GP, LP, The Column Group Management, LP, The Column Group II, LP, The Column Group III, LP, The
Column Group III-A, LP, The Column Group IV, LP, The Column Group IV-A, LP, The Column Group Opportunity III, LP, Ponoi Capital, LP and Ponoi Capital II, LP (the
TCG Rollover Stockholders and, together with The Column Group II GP, LP, The Column Group III GP, LP, The Column Group IV GP, LP, TCG IV GP, LLC, The Column Opportunity III GP, LP, TCG Opportunity III GP, LLC, Ponoi Management,
LLC, Ponoi II Management, LLC, David V. Goeddel, Ph.D., Timothy Kutzkey and Peter Svennilson, the TCG Stockholders) who in the aggregate hold approximately 26% of NGM Bios outstanding Shares. Parent and Purchaser are
affiliates of the TCG Stockholders, and each TCG Stockholder is considered a co-offeror in the Offer. As co-offerors, each TCG Stockholder accepts joint responsibility for the accuracy of the disclosures made in the Offer to Purchase. In addition,
Parent and Purchaser are party to a rollover agreement, dated as of the date of the Merger Agreement (as supplemented by the joinder thereto, the Stockholder Rollover Agreement), with certain of NGM Bios other stockholders
(collectively, the Rollover Stockholders), who in the aggregate hold approximately 22% of NGM Bios outstanding Shares. Mr. Rieflin, the Chairman of NGM Bios board of directors, and Dr. Goeddel, a member of
NGM Bios board of directors, entered into the
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