CERADYNE INC 4

4 · CERADYNE INC · Filed Mar 21, 2012

Form 4

Period: 2012-03-19

Vice President

Transactions

Tax Payment
Common Stock
2012-03-19$31.78/sh−721$22,913→ 1,981 total
Exercise/Conversion
Common Stock
2012-03-19+400→ 721 total
Exercise/Conversion
Restricted Stock Units
2012-03-19−1,667→ 1,667 total
Exp: 2013-03-19→ Common Stock (1,667 underlying)
Exercise/Conversion
Common Stock
2012-03-19+800→ 1,364 total
Exercise/Conversion
Restricted Stock Units
2012-03-19−800→ 1,600 total
Exp: 2014-03-19→ Common Stock (800 underlying)
Tax Payment
Common Stock
2012-03-19$31.78/sh−157$4,989→ 564 total
Tax Payment
Common Stock
2012-03-19$31.78/sh−329$10,456→ 1,035 total
Exercise/Conversion
Common Stock
2012-03-19+1,667→ 2,702 total
Exercise/Conversion
Restricted Stock Units
2012-03-19−400→ 0 total
Exp: 2012-03-19→ Common Stock (400 underlying)

Holdings

Footnotes (10)

[F1]No shares were sold. These 157 shares represent amounts withheld and applied to the payroll tax withholding liability of the recipient generated by the vesting of the award.
[F10]This Award vests as to 800 shares on each of March 19, 2012, March 19, 2013, March 19, 2014, March 19, 2015 and March 19, 2016.
[F2]No shares were sold. These 329 shares represent amounts withheld and applied to the payroll tax withholding liability of the recipient generated by the vesting of the award.
[F3]No shares were sold. These 721 shares represent amounts withheld and applied to the payroll tax withholding liability of the recipient generated by the vesting of the award.
[F4]Includes additional shares acquired through a matching contribution by the Company in connection with the Ceradyne 401(k) Plan.
[F5]Includes shares acquired through a matching contribution by the Company in connection with the Non-Qualified Deferred Compensation Plan.
[F6]Each Restricted Stock Unit represents the contingent right to receive one share of common stock.
[F7]This Award vests as to 400 units on each of 03/19/2008, 03/19/2009, 03/19/2010, 03/19/2011 and 03/19/2012.
[F8]This Award vests as to 800 units on each of March 19, 2010, March 19, 2011, March 19, 2012, March 19, 2013 and March 19, 2014.
[F9]This Award vests as to 1,666 shares on March 19, 2011 and as to 1,667 shares on both March 19, 2012 and March 19, 2013.

Documents

1 file