A123 SYSTEMS, INC.·4

May 24, 6:36 PM ET

Pyenson Eric J. 4

4 · A123 SYSTEMS, INC. · Filed May 24, 2011

Insider Transaction Report

Form 4
Period: 2011-05-20
Pyenson Eric J.
Vice President and General Cou
Transactions
  • Award

    Stock Option (right to buy)

    2011-05-20+37,00037,000 total
    Exercise: $5.66Exp: 2021-05-20Common Stock (37,000 underlying)
  • Award

    Common Stock

    2011-05-20+25,00039,838 total
Footnotes (3)
  • [F1]Restricted stock units ("RSUs"). Upon vesting thereof, the Reporting Person is entitled to receive one (1) share of common stock for each one (1) RSU.
  • [F2]25% of the RSUs will vest on May 20, 2012, and 6.25% of the total number of RSUs will vest at the end of each three-month period thereafter, so that 100% of the RSUs will be fully vested on May 20, 2015.
  • [F3]Option vests with respect to 25% of the shares subject thereto on May 20, 2012, and 6.25% of the total shares subject to the option will vest at the end of each three-month period thereafter, such that the option will be fully vested and exercisable on May 20, 2015.

Documents

1 file
  • 4
    a4.xmlPrimary

    4