XLRN on NASDAQ

Acceleron Pharma

American healthcare company

Acceleron Pharma, Inc. is an American clinical stage biopharmaceutical company based in Cambridge, Massachusetts with a broad focus on developing medicines that regulate the transforming growth factor beta (TGF-β) superfamily of proteins, which play fundamental roles in the growth and repair of cells and tissues such as red blood cells, muscle, bone, and blood vessels.3 From Wikipedia, CC BY-SA 4.0

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Last updated Oct 16, 2026.

Overview

2003Founded1

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  • TickerXLRN on NASDAQ1
  • Industrypharmaceutical industry1
  • HeadquartersBoston1
  • Websitewww.acceleron.com
  • Incorporated inDE4
  • Business address128 Sidney Street, Cambridge, Ma 021394
  • Filer categoryLarge accelerated filer4

Acceleron Pharma, Inc. is an American clinical stage biopharmaceutical company based in Cambridge, Massachusetts with a broad focus on developing medicines that regulate the transforming growth factor beta (TGF-β) superfamily of proteins, which play fundamental roles in the growth and repair of cells and tissues such as red blood cells, muscle, bone, and blood vessels.3

Financials

From the company’s reports to the SEC. Every number links to the filing it came from.

Key numbers, fiscal 2020

-180.8%Operating margin5
-179.4%Net margin5
25.0%Revenue growth, 20205
-19.4%Return on equity5
-$134.5MFree cash flow5

Where the money goes

Where each dollar of revenue went, fiscal 2020

  • Research and development67¢$173.9M
  • Selling, general and admin33¢$85.9M
  • Income tax0¢$21.0K

Out of $92.5M in revenue.5 The company lost money this year.

Financial statements

Revenue67895$92.5M in 2020+532% since 2014
0$25.0M$50.0M$75.0M$100.0M2014: $14.6M$14.6M20142015: $18.1M$18.1M2015+24%2016: $27.8M$27.8M2016+53%2017: $13.5M$13.5M2017−51%2018: $14.0M$14.0M2018+4%2019: $74.0M$74.0M2019+429%2020: $92.5M$92.5M2020+25%
Operating income67895-$167.3M in 2020+202% since 2014
-$200.0M-$150.0M-$100.0M-$50.0M02014: -$55.5M-$55.5M20142015: -$60.9M-$60.9M2015+10%2016: -$66.1M-$66.1M2016+9%2017: -$110.0M-$110.0M2017+66%2018: -$124.4M-$124.4M2018+13%2019: -$136.4M-$136.4M2019+10%2020: -$167.3M-$167.3M2020+23%
Net income67895-$166.0M in 2020+224% since 2014
-$200.0M-$150.0M-$100.0M-$50.0M02014: -$51.3M-$51.3M20142015: -$63.9M-$63.9M2015+25%2016: -$57.0M-$57.0M2016−11%2017: -$108.5M-$108.5M2017+90%2018: -$118.9M-$118.9M2018+10%2019: -$124.9M-$124.9M2019+5%2020: -$166.0M-$166.0M2020+33%
Fiscal year2014201520162017201820192020
Revenue$14.6M6$18.1M7$27.8M8$13.5M9$14.0M5$74.0M5$92.5M5
Research and development$50.9M6$58.4M7$68.6M8$89.7M9$103.9M5$154.0M5$173.9M5
Selling, general and admin$33.7M9$34.5M5$56.5M5$85.9M5
Operating income-$55.5M6-$60.9M7-$66.1M8-$110.0M9-$124.4M5-$136.4M5-$167.3M5
Interest$922.0K6$06$06
Income tax$06$07$24.0K8$32.0K9-$27.0K5-$62.0K5$21.0K5
Net income-$51.3M6-$63.9M7-$57.0M8-$108.5M9-$118.9M5-$124.9M5-$166.0M5

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How it started

History

The company was formed in June 2003 in Cambridge, Massachusetts as a Delaware corporation; the original name was Phoenix Pharma.

The founders were scientists Jasbir Seehra, Tom Maniatis, Mark Ptashne, Wylie Vale, and scientific advisor Joan Massague, and business people and investors John Knopf, Larry Bock and Christoph Westphal of Polaris Venture Partners, who served as founding CEO. The company was founded to discover and develop drugs based on the scientific discoveries of the scientific founders in the field of growth factors and transforming growth factors in the fields of metabolic disorders like obesity, diabetes, osteoporosis, and muscle-wasting conditions.

The company began with a seed round from Polaris of $250,000 and then had a Series A venture capital investment of $25 million that it used to open its first laboratory in December 2003.

Glenn Batchelder was appointed president and CEO in June 2004.

It started its first clinical trial in June 2006; the product was ACE-011 (which eventually was named "sotatercept"), a protein therapeutic that was an activin type 2 receptor antagonist intended to treat bone loss. ACE-011 was a chimeric protein, created by fusing the binding portion of the activin type 2 receptors to part of an antibody; the resulting protein binds to activin and prevents it from acting.

From Wikipedia’s article on Acceleron Pharma, shared under CC BY-SA 4.0.3

Timeline

  1. Sep 19, 2013Went public Listed on NASDAQ1
  2. 2003Founded Founded1

Recent filings

  1. Nov 22, 20218-K
  2. Nov 22, 20214 OWNERSHIP DOCUMENT
  3. Nov 22, 20214 OWNERSHIP DOCUMENT
  4. Nov 22, 20214 OWNERSHIP DOCUMENT
  5. Nov 22, 20214 OWNERSHIP DOCUMENT
  6. Nov 22, 20214 OWNERSHIP DOCUMENT
  7. Nov 22, 20214 OWNERSHIP DOCUMENT
  8. Nov 22, 20214 OWNERSHIP DOCUMENT
  9. Nov 22, 20214 OWNERSHIP DOCUMENT
  10. Nov 22, 20214 OWNERSHIP DOCUMENT
  11. Nov 22, 20214 OWNERSHIP DOCUMENT
  12. Nov 22, 20214 OWNERSHIP DOCUMENT
  13. Nov 22, 20214 OWNERSHIP DOCUMENT
  14. Nov 22, 20214 OWNERSHIP DOCUMENT
  15. Nov 12, 20214 FORM 4 -

Every filing from the last three years, summarized. The full record is on SEC EDGAR.2