David E. Simonelli - 16 Aug 2016 Form 4 Insider Report for Great Lakes Dredge & Dock CORP (GLDD)

Role: Chief Operating Officer
Signature: /s/Vivienne R. Schiffer, by Power of Attorney
Issuer symbol: GLDD
Transactions as of: 16 Aug 2016
Net transactions value: -$316,365
Form type: 4
Filing time: 18 Aug 2021, 16:05:22 UTC
Next filing: 16 Jun 2021
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	GLDD	Common Stock	Options Exercise	$160,476	+21,227	+9.1%	$7.56	254,364	16 Aug 2021	Direct
transaction	GLDD	Common Stock	Sale	$316,365	-21,227	-8.3%	$14.90	233,137	16 Aug 2021	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	GLDD	Employee Stock Option	Options Exercise	$160,476	-21,227	-100%	$7.56	0	16 Aug 2021	Common Stock	21,227	$7.56	Direct	F2, F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents the weighted average price. The shares were sold in multiple transactions ranging from $14.90 to $14.945, inclusive. Upon request by the Commission 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.
F2	Represents an exercise of vested employee stock options granted on May 7, 2013 under the Great Lakes Dredge & Dock Corporation 2007 Long-Term Incentive Plan.
F3	The options vested in three equal installments beginning May 7, 2014.