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ATHERSYS, INC / NEW Form SC 13D: Beneficial ownership report (active)

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ATHERSYS, INC / NEW Form SC 13D: Beneficial ownership report (active)

Filings on SEC EDGAR, newest first; amendments sit with their base form. Values are as filed.

  • 2021-09-21: Form SC 13D/A; Description SCHEDULE 13D, AMENDMENT NO. 10; Document sc13d-a10.htm.
  • 2021-02-16: Form SC 13D/A; Description SCHEDULE 13D, AMENDMENT NO. 9; Document tm216880d1_sc13da.htm.
  • 2020-11-30: Form SC 13D/A; Description SCHEDULE 13D, AMENDMENT NO. 8; Document sc13da8.htm.
  • 2020-11-23: Form SC 13D/A; Description SCHEDULE 13D, AMENDMENT NO. 7; Document sc13da7.htm.
FiledFormPeriod of reportDescriptionDocument
2021-09-21SC 13D/ASCHEDULE 13D, AMENDMENT NO. 10sc13d-a10.htm
2021-02-16SC 13D/ASCHEDULE 13D, AMENDMENT NO. 9tm216880d1_sc13da.htm
2020-11-30SC 13D/ASCHEDULE 13D, AMENDMENT NO. 8sc13da8.htm
2020-11-23SC 13D/ASCHEDULE 13D, AMENDMENT NO. 7sc13da7.htm
2020-11-18SC 13D/ASCHEDULE 13D, AMENDMENT NO. 6sc13d-a6.htm
2020-11-13SC 13D/ASCHEDULE 13D, AMENDMENT NO. 5sc13d-a5.htm
2020-05-15SC 13D/ASC 13D/Ad931066dsc13da.htm
2020-04-02SC 13D/ASC 13D/Ad825854dsc13da.htm
2018-07-02SC 13D/ASC 13D/Ad887115dsc13da.htm
2018-06-11SC 13D/ASC 13D/Ad603955dsc13da.htm
2018-03-23SC 13DSC 13Dd558660dsc13d.htm
2012-10-02SC 13D/AAMENDMENT NO. 6 TO SCHEDULE 13Dss154309_sc13da.htm
2012-06-19SC 13D/AAMENDMENT NO. 5 TO SCHEDULE 13Dss147135_sc13da.htm
2011-04-29SC 13D/AAMENDMENT NO. 4 TO SCHEDULE 13Dss117688_sc13da.htm
2011-04-29SC 13D/AAMENDMENT NO. 4 TO SCHEDULE 13Dss117688_sc13da.htm
2010-01-12SC 13D/ABeneficial ownership report (active)ss81881_sc13da.htm
2010-01-12SC 13D/ABeneficial ownership report (active)ss81881_sc13da.htm
2008-05-29SC 13D/ABeneficial ownership report (active)ss38823_sc13da.htm
2008-05-29SC 13D/ABeneficial ownership report (active)ss38823_sc13da.htm
2008-05-29SC 13D/ABeneficial ownership report (active)ss38823_sc13da.htm
2008-05-21SC 13D/ABeneficial ownership report (active)ss38402_sc13da.htm
2008-05-21SC 13D/ABeneficial ownership report (active)ss38402_sc13da.htm
2008-05-21SC 13D/ABeneficial ownership report (active)ss38402_sc13da.htm
2008-04-14SC 13DBeneficial ownership report (active)ss35384_sc13d.htm
2008-04-14SC 13DBeneficial ownership report (active)ss35384_sc13d.htm
2008-04-14SC 13DBeneficial ownership report (active)ss35384_sc13d.htm
2007-06-18SC 13DSC 13Da07-16893_1sc13d.htm
2006-10-31SC 13DBeneficial ownership report (active)bthc6sc13d100406.txt
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