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Zenas BioPharma, Inc.

Updated Oct 27, 2026·Latest SEC filing May 14, 2024·Suggest an edit

About Zenas BioPharma

Zenas BioPharma is a private company based in Waltham, Massachusetts, incorporated in 2023 in Delaware. It has reported $384,044,167 raised in two offerings on Form D since November 2022.

Funding Rounds (SEC Form D)

First saleFiled with SECAmount soldInvestorsAvg. checkTermsFiling
May 3, 2024May 14, 2024$200,145,732fully sold26$7.6MEquity, Securities on exerciseRule 506(b)Form D ↗
Nov 2, 2022Nov 15, 2022$183,898,435fully sold17$10.8MEquityRule 506(b)Form D ↗
Total, two offerings$384,044,167

First sale is the date the first investor in the offering committed to invest. Companies must file Form D within 15 days of that date, so filing dates run later.

Leadership Team

Executive officers and directors listed on Zenas BioPharma's Form D filed May 14, 2024.

PE
Patrick Enright
Director
Also a director at BioAge Labs and Rivus Pharmaceuticals.
TK
Tomas Kiselak
Director
Also a director at Interius BioTherapeutics.
PA
JF
Joseph Farmer
PRESIDENT and CHIEF OPERATING OFFICER
LJ
Leon Moulder, Jr.
Executive officer and director
JN
Jake Nunn
Director
TX
Tim Xiao
Director
JF
Jennifer Fox
Executive officer
JB
James Boylan
Director
TF
Tanya Fischer
Executive officer
JO
John Orloff
Director

Earlier filings also listed Marietta Wu (director, last listed Nov 2022) and Hua Mu (executive officer and director, last listed Nov 2022).

Sources

  1. SECZenas BioPharma, Inc. filing history