Sidewinder Therapeutics

Rare Disease Therapeutics · Health Care

Overview

Sidewinder Therapeutics is pioneering the next generation of large molecule precision therapeutics. We aim to deliver new life-saving therapies for patients with cancer and rare disease.

Key facts

These are the key facts about Sidewinder Therapeutics on Alion as of Nov 13, 2026. The latest round is Series B of $137M, announced in 2026.

Employees
200+Alion company profile, an estimated range
Total raised
$137MSum of 1 equity round Alion knows
Latest round
Series B · $137M · Apr 7, 2026Press report · sidewinderbio.com

Funding and backers

Total raised
$137M
1 round on record
Latest round
$137M
Series B · Apr 2026 · 7 mo ago
Team
201-500
employees, estimated range
Backers
3
DCVC, Novartis Venture Fund
The money's age
Fresh money
7 months since the last round · not hiring
Momentum
20/100
fresh money
Last sign of life
1 mo ago
a posting or a news item
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
Apr 7 Raised a round Series B $137M Apr 2023 Website went live first capture in the Wayback Machine
Funding rounds
RoundDateAmountInvestorsSource
Series B Apr 2026 $137M — sidewinderbio.com
Backed byfrom the funds' portfolios and accelerator catalogs
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Financials

Total raised
$137M
Latest round
Series B
Funding rounds
1
Funding rounds
Round Announced Amount
Series B 2026 $137M Details

Connections

List
Graph
Found in company registers, site code, DNS and hiring. Each connection shows how sure we are and the evidence, with its source and date.
Shared investors3
30 portfolio companies: SpliceBio, Vivet Therapeutics, Tagworkspharma and 27 more
DCVCVia a fund
227 portfolio companies: Rainmaker, Nobell Foods, NVision Quantum and 224 more

News

News Pulse 2.0 7 months ago
Sidewinder Therapeutics: $137 Million Raised For Bispecific ADC Cancer Therapies
Sidewinder Therapeutics, a biopharmaceutical company developing next-generation bispecific antibody-drug conjugates, announced the closing of an oversubscribed $137 million Series B financing round to advance its oncology pipeline into clinical developmen
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Report
News PRNewswire 7 months ago
PRN_FinancialWrapper
PRN_FinancialWrapper
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Report
Blog 10 months ago
Lonza's Synaffix and Sidewinder Therapeutics Announce Multi-Target License Agreement to Advance Development of Next-Generation Bispecific ADCs
Multi-target license agreement grants Sidewinder access to Lonza's clinically validated ADC platform Sidewinder's pipeline of precision bispecific ADCs combined with Lonza's clinically validated ADC platform will enable the development of first-in-class b
Read more
Report
Blog 3 years ago
Terms of Use Read more
Report
Blog 3 years ago
Privacy Notice Read more
Report

How to cite this page

Alion, "Sidewinder Therapeutics: key facts", as of Nov 13, 2026. https://alion.io/company/sidewinderbio

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