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TellBio, Inc.

Develops a system that isolates tumor cells from blood samples for cancer researchers.

Updated Nov 10, 2026·Latest SEC filing Mar 24, 2026·Suggest an edit

About TellBio

TellBio is a private company based in Andover, Massachusetts. It has reported $10,973,031 raised in five offerings on Form D since October 2019.

Funding Rounds (SEC Form D)

First saleFiled with SECAmount soldInvestorsAvg. checkTermsFiling
Sep 4, 2024Oct 18, 2024amended Mar 24, 2026$1,000,000fully sold6$166KEquity, OptionsRule 506(b)Form D/A ↗2 earlier filings
Jun 21, 2024Jul 8, 2024$1,200,000fully sold11$109KEquity, DebtRule 506(b)Form D ↗
Feb 24, 2023Mar 29, 2023$2,294,702of $2.5M target23$99,770EquityRule 506(b)Form D ↗
Mar 11, 2021Mar 17, 2021$4,999,998fully sold29$172KEquityRule 506(b)Form D ↗
Sep 30, 2019Oct 22, 2019$1,478,331fully sold19$77,807EquityRule 506(b)Form D ↗
Total, five offerings$10,973,031

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 TellBio's Form D filed Mar 24, 2026.

Gary Crocker
Gary Crocker
Director, TellBio
Richard Peters
Richard Peters
Founder & Executive Chairman

Earlier filings also listed Pritesh Gandhi (ceo and director, last listed Jul 2024).

Sources

  1. SECTellBio, Inc. Form D/A, filed Oct 18, 2024
  2. SECTellBio, Inc. Form D, filed Oct 18, 2024
  3. SECTellBio, Inc. filing history
  4. CompanyTellBio team
  5. CompanyTellBio press release