GLDD VP & CAO awarded 7,165 restricted shares

Great Lakes Dredge & Dock Corp VP & CAO Ryan Bayer received an equity award of 7,165 shares of common stock in the form of restricted stock units.

Rhea-AI Filing Summary

Great Lakes Dredge & Dock Corp VP & CAO Ryan Bayer received an equity award of 7,165 shares of common stock in the form of restricted stock units. The award was granted at no cash cost and is classified as a grant or other acquisition.

The restricted stock units vest in three equal annual installments beginning on February 23, 2027, providing a multi-year incentive. Following this grant, Bayer directly holds 31,739 shares of the company’s common stock.

Insider Trade Summary

Grant/Award: 7,165 shares

Grant/Award 1 txn

Insider BAYER RYAN

Role VP & CAO

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	7,165	$0.00	$0.00

Holdings After Transaction: Common Stock — 31,739 shares (Direct)

Footnotes (1)

1. F1. Represents restricted stock units that vest in three equal annual installments beginning on February 23, 2027.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did GLDD executive Ryan Bayer report in this Form 4 filing?

Ryan Bayer reported receiving an equity award of 7,165 restricted stock units of Great Lakes Dredge & Dock common stock. The grant was recorded as a non-cash acquisition and increases his direct holdings to 31,739 shares, aligning his compensation more closely with shareholder interests over time.

How many GLDD shares were involved in Ryan Bayer’s latest Form 4?

The Form 4 shows a grant of 7,165 restricted stock units tied to Great Lakes Dredge & Dock common stock. These units were added to his existing holdings, bringing his total direct ownership to 31,739 shares after the transaction, according to the filing details.

What type of transaction is reported for GLDD VP & CAO Ryan Bayer?

The transaction is classified as a grant, award, or other acquisition of non-derivative common stock. It involves restricted stock units rather than an open-market purchase or sale, reflecting routine equity-based compensation instead of a discretionary trading decision in Great Lakes Dredge & Dock shares.

When do Ryan Bayer’s GLDD restricted stock units begin vesting?

The restricted stock units begin vesting on February 23, 2027. They vest in three equal annual installments starting on that date, meaning the award will fully vest over a three-year period, subject to continued service and any additional conditions described in the underlying grant documents.

Does Ryan Bayer directly own the GLDD shares reported in this Form 4?

Yes, the filing indicates direct ownership. After the grant of 7,165 restricted stock units, Ryan Bayer is shown as directly holding 31,739 shares of Great Lakes Dredge & Dock common stock, with no footnote indicating indirect ownership through another entity or trust structure.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 02/25/2026 - 04:30 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

BAYER RYAN

(Last) (First) (Middle)

C/O GREAT LAKES DREDGE & DOCK CORP.

9811 KATY FREEWAY, SUITE 1200

(Street)

HOUSTON TX 77024

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Great Lakes Dredge & Dock CORP [ GLDD ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	VP & CAO

3. Date of Earliest Transaction (Month/Day/Year)
02/23/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	02/23/2026		A		7,165	A	(1)	31,739	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents restricted stock units that vest in three equal annual installments beginning on February 23, 2027.

	/s/Vivienne R. Schiffer, by Power of Attorney	02/25/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.