---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-21-246234"
form_type: "8-K"
ticker: "TNGX"
cik: "0001819133"
company_name: "Tango Therapeutics, Inc."
filed_at: "2021-08-13T23:59:59+00:00"
generated_at: "2026-06-29T11:44:43.196189+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Tango Therapeutics completes de-SPAC merger; starts trading on Nasdaq under TNGX

## Summary
- Merger closed Aug 10, 2021; Old Tango shares converted at ~0.34 share of new common stock per share.
- PIPE investors purchased 18.61M shares at $10.00/share, raising $186.1M in gross proceeds.
- Post-merger, 87,474,258 shares of common stock outstanding and 9,498,725 shares subject to equity awards.
- Common stock began trading on Nasdaq Capital Market on Aug 11, 2021 under ticker TNGX.
- Directors and officers entered into lock-up agreements for 180 days after closing.

## SEC filing metadata
- accession: 0001193125-21-246234
- form_type: 8-K
- ticker: TNGX
- cik: 0001819133
- company_name: Tango Therapeutics, Inc.
- filed_at: 2021-08-13T23:59:59+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 1.01, 2.01, 9.01, 3.02, 3.03, 4.01, 5.01, 5.02, 5.03, 5.05, 5.06, 5.07
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1819133/000119312521246234/0001193125-21-246234-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1819133/000119312521246234/d203347d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-21-246234
- JSON: https://secwatch.observer/filing/0001193125-21-246234.json
- Plain text: https://secwatch.observer/filing/0001193125-21-246234.txt

## Key facts
- Executive change
  Lesley Calhoun was appointed as Director at Tango Therapeutics, Inc..
  - Action: appointed
  - Role: Director
  source text: Lesley Calhoun and Reid Huber were appointed as Class I directors, Malte Peters and Mace Rothenberg were appointed as Class II directors and Alexis Borisy, Aaron Davis and Barbara Weber were appointed as Class III directors.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1819133/000119312521246234/0001193125-21-246234-index.htm
- Executive change
  Mace Rothenberg was appointed as Director at Tango Therapeutics, Inc..
  - Action: appointed
  - Role: Director
  source text: Lesley Calhoun and Reid Huber were appointed as Class I directors, Malte Peters and Mace Rothenberg were appointed as Class II directors and Alexis Borisy, Aaron Davis and Barbara Weber were appointed as Class III directors.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1819133/000119312521246234/0001193125-21-246234-index.htm
- Executive change
  Aaron Davis was appointed as Director at Tango Therapeutics, Inc..
  - Action: appointed
  - Role: Director
  source text: Lesley Calhoun and Reid Huber were appointed as Class I directors, Malte Peters and Mace Rothenberg were appointed as Class II directors and Alexis Borisy, Aaron Davis and Barbara Weber were appointed as Class III directors.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1819133/000119312521246234/0001193125-21-246234-index.htm
- Executive change
  Alexis Borisy was appointed as Director at Tango Therapeutics, Inc..
  - Action: appointed
  - Role: Director
  source text: Lesley Calhoun and Reid Huber were appointed as Class I directors, Malte Peters and Mace Rothenberg were appointed as Class II directors and Alexis Borisy, Aaron Davis and Barbara Weber were appointed as Class III directors.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1819133/000119312521246234/0001193125-21-246234-index.htm
- Executive change
  Malte Peters was appointed as Director at Tango Therapeutics, Inc..
  - Action: appointed
  - Role: Director
  source text: Lesley Calhoun and Reid Huber were appointed as Class I directors, Malte Peters and Mace Rothenberg were appointed as Class II directors and Alexis Borisy, Aaron Davis and Barbara Weber were appointed as Class III directors.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1819133/000119312521246234/0001193125-21-246234-index.htm
- Executive change
  Barbara Weber was appointed as Director at Tango Therapeutics, Inc..
  - Action: appointed
  - Role: Director
  source text: Lesley Calhoun and Reid Huber were appointed as Class I directors, Malte Peters and Mace Rothenberg were appointed as Class II directors and Alexis Borisy, Aaron Davis and Barbara Weber were appointed as Class III directors.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1819133/000119312521246234/0001193125-21-246234-index.htm
- Executive change
  Reid Huber was appointed as Director at Tango Therapeutics, Inc..
  - Action: appointed
  - Role: Director
  source text: Lesley Calhoun and Reid Huber were appointed as Class I directors, Malte Peters and Mace Rothenberg were appointed as Class II directors and Alexis Borisy, Aaron Davis and Barbara Weber were appointed as Class III directors.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1819133/000119312521246234/0001193125-21-246234-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.