UnannouncedVCRaise

Filed before 2025Filed 27 April 2016

Arsanis, Inc. raised $15M

Arsanis, Inc., a biotech company based in Waltham, MA, raised $15M in a new equity round, according to a filing dated 27 April 2016.

Raises filed before 2025 are not checked for a public announcement.

Filed
27 April 2016
Round
Equity round
Amount sold
$15M
Offering size
$15M
Investors so far
10
Based in
Waltham, MA

Investors on the board

Firms come from the venture funds whose filings name a director of this company.

Who is on the board

4 directors of this company are named on venture funds' filings. Sign in free with Google to see who, the full filing, and a short list of rounds like this each morning.

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How it compares

Larger than 77% of the 1,506 tracked raises with an amount filed in 2016, and than 69% of the 120 in biotech.

Arsanis, Inc. in public filings

FiledFilingSoldRaise
8 May 2017New filing$45.5MAnother raise
27 Apr 2016New filing$15MThis raise
30 Dec 2015New filing$4MAnother raise
5 Jun 2015Amended filing$20MAnother raise
11 Aug 2014Amended filing$13MAnother raise

Everything on Arsanis, Inc.

More with Dementia Discovery on the board

  1. Endlyz Therapeutics, Inc.$17.3MUnclear7 May 2026 · Boston, MA
  2. Dualitas Therapeutics, Inc.$32.6MAnnounced18 Nov 2025 · South San Francisco, CA
  3. Therini Bio, Inc.$74.9MAnnounced8 Sep 2025 · Sacramento, CA
  4. 20/20 GeneSystems, Inc.$70KUnannounced · 568 days26 Feb 2025 · Gaithersburg, MD

All 28 raises

Other unannounced rounds

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  4. Scoring Factory AI Inc.$500KUnannounced · 2 days15 Sep 2026 · New York, NY
  5. Royal & Pelham, Inc.$5.4MUnannounced · 2 days15 Sep 2026 · New Orleans, LA
  6. SPECTRA Holdings US, Ltd.$2.5MUnannounced · 2 days15 Sep 2026 · Sandy Springs, GA

All unannounced rounds

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