Filing Details

Accession Number:
0001179110-21-004223
Form Type:
4
Zero Holdings:
No
Publication Time:
2021-04-05 20:17:30
Reporting Period:
2021-04-05
Accepted Time:
2021-04-05 20:17:30
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
1639637 L. Karen Smith 128 Sidney Street
Cambridge MA 02139
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 Acquisiton 2021-04-05 5,000 $35.34 9,561 No 4 M Direct
Common Stock Acquisiton 2021-04-05 1,875 $41.64 11,436 No 4 M Direct
Common Stock Acquisiton 2021-04-05 2,050 $52.99 13,486 No 4 M Direct
Common Stock Disposition 2021-04-05 11,223 $140.13 2,263 No 4 S Direct
Common Stock Disposition 2021-04-05 641 $141.15 1,622 No 4 S Direct
Equity Swap Involved Form Type Code Nature of Ownership Explanation
No 4 M Direct
No 4 M Direct
No 4 M Direct
No 4 S Direct
No 4 S Direct
Reported Derivative Transactions
Sec. Name Sec. Type Acquisiton - Disposition Date Amount Price Amount - 2 Price - 2
Common Stock Option to Purchase Common Stock Disposition 2021-04-05 5,000 $0.00 5,000 $35.34
Common Stock Option to Purchase Common Stock Disposition 2021-04-05 1,875 $0.00 1,875 $41.64
Common Stock Option to Purchase Common Stock Disposition 2021-04-05 2,050 $0.00 2,050 $52.99
Remaning Holdings Exercise Date Expiration Date Equity Swap Involved Transaction Form Type Transaction Code Nature of Ownership
10,000 2027-11-15 No 4 M Direct
3,750 2029-01-25 No 4 M Direct
4,085 2030-01-22 No 4 M Direct
Footnotes
  1. The reported transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.
  2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $140.00 to $140.92 inclusive. The reporting person undertakes to provide 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 range set forth in this footnote (2) to this Form 4.
  3. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $141.01 to $141.34 inclusive. The reporting person undertakes to provide 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 range set forth in this footnote (3) to this Form 4.
  4. The shares of common stock underlying this stock option award vested in equal quarterly installments over the first three years after the grant.
  5. The shares of common stock underlying this stock option award vested in full on the one year anniversary of the grant date.