LaVoy Kathleen Mackie 4

4 · Great Lakes Dredge & Dock CORP · Filed Dec 12, 2019

Form 4

Period: 2019-12-11

SVP & Chief Legal Officer

Transactions

Exercise/Conversion
Common Stock
[F1]
2019-12-11$5.33/sh+5,491$29,267→ 106,257 total
Exercise/Conversion
Common Stock
[F2]
2019-12-11$6.45/sh+7,563$48,781→ 113,820 total
Sale
Common Stock
[F3]
2019-12-11$11.81/sh−11,050$130,555→ 102,770 total
Exercise/Conversion
Employee Stock Option
[F1][F4]
2019-12-11−5,491→ 0 total
Exercise: $5.33Exp: 2021-06-27→ Common Stock (5,491 underlying)
Exercise/Conversion
Employee Stock Option
[F2][F5]
2019-12-11−7,563→ 0 total
Exercise: $6.45Exp: 2022-06-06→ Common Stock (7,563 underlying)

Footnotes (5)

[F1]Represents an exercise of vested employee stock options granted on June 27, 2011 under the Great Lakes Dredge & Dock Corporation 2007 Long-Term Incentive Plan.
[F2]Represents an exercise of vested employee stock options granted on June 6, 2012 under the Great Lakes Dredge & Dock Corporation 2007 Long-Term Incentive Plan.
[F3]Represents the weighted average price. The shares were sold in multiple transactions ranging from $11.802 to $11.827, inclusive. Upon request by the Commision staff, the issuer or security holder of the issuer, the reporting person will provide information regarding the number of shares disposed of at each separate price.
[F4]The options vested in three equal annual installments beginning June 27, 2012.
[F5]The options vested in three equal annual installments beginning June 6, 2013.

Signature

/s/Kathleen M. LaVoy|2019-12-12

Documents

1 file