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Terrestrial Bio, Inc.

Develops patches to deliver medicines through the skin for patients.

Updated Nov 10, 2026·Latest SEC filing Mar 19, 2026·Suggest an edit

About Terrestrial

Terrestrial is a private company based in Woburn, Massachusetts. It has reported $138,178,495 raised in 11 offerings on Form D since May 2013. Its chief executive is Rachel Sha.

Funding Rounds (SEC Form D)

First saleFiled with SECAmount soldInvestorsAvg. checkTermsFiling
Mar 4, 2026Mar 19, 2026$57,301,758of $83.5M target16$3.5MEquity, Securities on exerciseRule 506(b)Form D ↗
Aug 27, 2025Sep 10, 2025$7,903,411of $10.0M target4$1.9MDebt, OptionsRule 506(b)Form D ↗
Feb 14, 2025Feb 26, 2025$8,400,000of $10.0M target3$2.8MDebt, OptionsRule 506(b)Form D ↗
May 13, 2024May 28, 2024$10,775,983of $12.0M target6$1.7MDebt, OptionsRule 506(b)Form D ↗
Jul 17, 2023Jul 24, 2023$9,096,986of $12.0M target4$2.2MEquityRule 506(b)Form D ↗
Sep 22, 2022Oct 4, 2022$2,000,000fully sold1$2.0MDebt, OptionsRule 506(b)Form D ↗
Apr 29, 2021May 14, 2021amended Dec 23, 2022$35,012,500fully sold7$5.0MEquityRule 506(b)Form D/A ↗1 earlier filing
Mar 22, 2021Mar 26, 2021$2,000,000fully sold3$666KDebt, OptionsRule 506(b)Form D ↗
Feb 6, 2019Feb 15, 2019$3,575,000fully sold4$893KEquityRule 506(b)Form D ↗
Dec 27, 2016Jan 9, 2017$862,857fully sold2$431KEquityRule 506(b)Form D ↗
May 21, 2013May 29, 2013$1,250,000of $3.7M target2$625KEquity06Form D ↗
Total, 11 offerings$138,178,495

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 Terrestrial's Form D filed Mar 19, 2026.

LT
Linda Tussey
Executive officer
KK
Kathryn Kousda
Executive officer and director
Livio Valenti
Livio Valenti
Executive officer
Ann DeWitt
Ann DeWitt
Director
Fenel Eloi
Fenel Eloi
Managing Partner, P&M Capital Partners, director
Peter Kolchinsky
Peter Kolchinsky
Co-Founder and Managing Partner, RA Capital Management, director
RS
Rachel Sha
Chief Executive Officer, Board Member

Earlier filings also listed Weiner Tilsner (executive officer, last listed Sep 2025), Matthew Dirckx (executive officer, last listed Sep 2025), Lynda Tussey (executive officer, last listed Sep 2025), Kathryn Kosuda (executive officer and director, last listed Sep 2025), Jonathan Kluge (executive officer, last listed Sep 2025), John Spiridigliozzi (executive officer, last listed Sep 2025), Mario Barro (director, last listed May 2024) and Michael Schrader (president and director, last listed Jul 2023).

Sources

  1. SECTerrestrial Bio, Inc. Form D, filed May 14, 2021
  2. SECTerrestrial Bio, Inc. filing history
  3. CompanyTerrestrial privacy policy
  4. CompanyTerrestrial leadership