# New Enterprise Associates 14, L.P. — merger [announced]
Source: SEC API (secapi.ai) · situation sit_9a8975f0b31f2b267f58 · retrieved 2026-08-11T16:14:37.088Z

## Overview
Synlogic, Inc. is a pharmaceutical company (formerly Mirna Therapeutics, Inc.) engaged in the development of pharmaceutical preparations.

On July 28, 2026, Synlogic, Inc. entered into an Agreement and Plan of Merger with Caldera Therapeutics, Inc., Sonic Holdco, Inc. (Parent), and two merger subsidiaries. Under the Merger Agreement, Synlogic will merge with and into Sonic Merger Sub, becoming a wholly owned subsidiary of Parent, while Caldera will merge with and into Caldera Merger Sub, also becoming a wholly owned subsidiary of Parent. Each outstanding share of Synlogic common stock will be converted into the right to receive a number of shares of Parent common stock, calculated according to an exchange ratio set forth in the Merger Agreement. Caldera's Series A and Series A-1 Preferred Stock will be converted into Parent common stock at the Caldera Effective Time, followed by the Synlogic Merger.

## Terms
- Counterparty: Sonic Holdco, Inc. · Consideration: stock

## Key dates
- Announced 2026-07-29

## Timeline
- 2026-07-29 · SCHEDULE 13D/A (0001072613-26-000599): SCHEDULE 13D/A - New Enterprise Associates 14, L.P. — *Synlogic, Inc. is a pharmaceutical company (formerly Mirna Therapeutics, Inc.) engaged in the development of pharmaceutical preparations.* On July 28, 2026, Synlogic, Inc. entered into an Agreement and Plan of Merger with Caldera Therapeutics, Inc., Sonic Holdco, Inc. (Parent), and two merger subsidiaries. Under the Merger Agreement, Synlogic will merge with and into Sonic Merger Sub, becoming a wholly owned subsidiary of Parent, while Caldera will merge with and into Caldera Merger Sub, also becoming a wholly owned subsidiary of Parent. Each outstanding share of Synlogic common stock will be converted into the right to receive a number of shares of Parent common stock, calculated according to an exchange ratio set forth in the Merger Agreement. Caldera's Series A and Series A-1 Preferred Stock will be converted into Parent common stock at the Caldera Effective Time, followed by the Synlogic Merger.
  https://www.sec.gov/Archives/edgar/data/1544328/0001072613-26-000599.txt

## Citations
- 0001072613-26-000599 — https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&type=&dateb=&owner=include&count=40&search_text=000107261326000599