ARCL on Nasdaq

Archipelago Learning

American online learning software

Edmentum is an American online learning provider and owner of Reading Eggs internationally. Founded in 2000 as Archipelago Learning, the company is headquartered in Bloomington, Minnesota, and is a publicly held company with the largest shareholder being Providence Equity Partners, a media-focused private equity firm.3 From Wikipedia, CC BY-SA 4.0

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Last updated Oct 16, 2026.

Overview

2000Founded1

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  • TickerARCL on Nasdaq1
  • Industryeducational software1
  • HeadquartersDallas1
  • Websitewww.archipelagolearning.com
  • Incorporated inDE4
  • Business address398 S Mill Ave, Suite 306, Tempe, Az 852844
  • Filer category, Emerging growth company4

Edmentum is an American online learning provider and owner of Reading Eggs internationally.3

How it started

History

Study Island was founded in May 2000 by Cam Chalmers and Dave Muzzo, originally providing tools related to the Ohio Proficiency Test Program. By 2002, Study Island had expanded to four states, Ohio, North Carolina, New York, and Michigan, and serviced 180 schools. Continuing its rapid growth plan, Study Island, which moved its offices to Dallas, Texas added six states in 2003 and expanded its coverage to 750 schools.

In January 2007, Providence Equity Partners and MHT Partners together with co-founders Cameron Chalmers and David Muzzo completed a recapitalization of Study Island in which Archipelago Learning was created to acquire 100% of the outstanding shares of Study Island.

In October 2009, it launched in Canada.

In November 2009, Archipelago Learning launched a $75 million initial public offering on the NASDAQ under the symbol "ARCL". It also sold TeacherWeb in November 2009.

In June 2010, it bought EducationCity expanding the company's school count and portfolio of products in the United States and providing an entry point into the U.K. The company entered into a distribution agreement with Blake Publishing to distribute Reading Eggs in the United States and Canada.

From Wikipedia’s article on Archipelago Learning, shared under CC BY-SA 4.0.3

Former names

  • D. Boral ARC Acquisition II Corp.Jun 30, 2025 to Jun 30, 20254

Timeline

  1. 2000Founded Founded1

Recent filings

  1. Sep 10, 20268-K
  2. Sep 2, 20268-K
  3. Aug 14, 2026SCHEDULE 13G
  4. Aug 14, 2026SCHEDULE 13G/A
  5. Aug 14, 2026SCHEDULE 13G
  6. Aug 13, 2026SCHEDULE 13G
  7. Aug 4, 202610-Q
  8. May 21, 20268-K
  9. May 14, 202610-Q
  10. May 12, 20263
  11. May 11, 2026SCHEDULE 13G/A
  12. May 8, 20263
  13. May 7, 2026SCHEDULE 13G
  14. May 7, 20268-K
  15. May 7, 2026SCHEDULE 13G

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

Sources

The numbers on this page point here. Each one links to the record it came from.

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