Filing Details

Accession Number:
0001209191-14-078009
Form Type:
4
Zero Holdings:
No
Publication Time:
2014-12-29 06:05:31
Reporting Period:
2014-12-23
Filing Date:
2014-12-29
Accepted Time:
2014-12-29 06:05:31
SEC Url:
Form 4 Filing
Issuer
Cik Name Symbol Sector (SIC) IRS No
1280600 Acceleron Pharma Inc XLRN Biological Products, (No Disgnostic Substances) (2836) 000000000
Insiders
Cik Name Reported Address Insider Title Director Officer Large Shareholder Other
1255927 Jr M Edwin Kania C/o Flagship Ventures, 1 Memorial Drive
Cambridge MA 02142
Yes No No No
Reported Non-Derivative Transactions
Sec. Name Acquisiton - Disposition Date Amount Price Remaning Holdings Equity Swap Involved Form Type Code Nature of Ownership Explanation
Common Stock Disposition 2014-12-23 51,163 $38.00 0 No 4 S Indirect See Footnote
Common Stock Disposition 2014-12-23 3,187 $38.00 0 No 4 S Indirect See Footnote
Equity Swap Involved Form Type Code Nature of Ownership Explanation
No 4 S Indirect See Footnote
No 4 S Indirect See Footnote
Reported Non-Derivative Holdings
Sec. Name Remaning Holdings Nature of Ownership Explanation
Common Stock 500,420 Indirect See Footnote
Common Stock 30,248 Indirect See Footnote
Common Stock 13,136 Indirect See Footnote
Common Stock 251 Indirect See Footnote
Common Stock 28,734 Direct
Footnotes
  1. The price reported in Column 4 is a weighted average price. These shares were disposed of by OneLiberty Ventures 2000, L.P. ("OLV") and OneLiberty Advisors Fund 2000, L.P. ("OLA") in multiple transactions on the Transaction Date at prices ranging from $37.99 to $38.05, inclusive. The reporting person undertakes to provide to Acceleron Pharma Inc., any security holder of Acceleron Pharma Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the foregoing price range.
  2. These shares were held directly by OLV. OneLiberty Partners 2000, LLC ("OLP") is the general partner of OLV. Edwin M. Kania, Jr. is the managing member of OLP and, accordingly, may be deemed to have beneficial ownership with respect to all shares held by OLV. Mr. Kania disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein.
  3. These shares were held directly by OLA. OLP is the general partner of OLA. As managing member of OLP, Edwin M. Kania, Jr. may be deemed to have beneficial ownership with respect to all shares held by OLA. Mr. Kania disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein.
  4. These shares are held directly by Applied Genomic Technology Capital Fund, L.P. ("AGTC Fund"). NewcoGen Group, Inc. ("NewcoGen Inc.") is the sole general partner of AGTC Partners, L.P. ("AGTC Partners"), which is the sole general partner of AGTC Fund. NewcoGen Inc. is a wholly-owned subsidiary of Flagship Ventures Management, Inc. Noubar B. Afeyan, Ph.D. and Edwin M. Kania, Jr. are the directors of Flagship Ventures Management, Inc. and, accordingly, may be deemed to have beneficial ownership with respect to all shares held by AGTC Fund. Each of Mr. Kania and Dr. Afeyan disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein.
  5. These shares are held directly by AGTC Advisors Fund, L.P ("AGTC Advisors"). NewcoGen Inc. is the sole general partner of AGTC Partners, which is the sole general partner of AGTC Advisors. NewcoGen Inc. is a wholly-owned subsidiary of Flagship Ventures Management, Inc. As the directors of Flagship Ventures Management, Inc., Noubar B. Afeyan Ph.D. and Edwin M. Kania, Jr. may be deemed to have beneficial ownership with respect to all shares held by AGTC Advisors. Each of Mr. Kania and Dr. Afeyan disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein.
  6. These shares are held by NewcoGen Group LLC. NewcoGen Inc. is the manager of NewcoGen Group LLC and is a wholly-owned subsidiary of Flagship Ventures Management, Inc. As the directors of Flagship Ventures Management, Inc., Noubar B. Afeyan, Ph.D. and Edwin M. Kania, Jr. may be deemed to have beneficial ownership with respect to all shares held by NewcoGen Group LLC. Each of Mr. Kania and Dr. Afeyan disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein.
  7. These shares are held directly by AGTC Partners. NewcoGen Inc. is the general partner of AGTC Partners. NewcoGen Inc. is a wholly-owned subsidiary of Flagship Ventures Management, Inc. As the directors of Flagship Ventures Management, Inc., Noubar B. Afeyan, Ph.D. and Edwin M. Kania, Jr. may be deemed to have beneficial ownership with respect to all shares held by AGTC Partners. Each of Mr. Kania and Dr. Afeyan disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein.