[144] Great Lakes Dredge & Dock Corporation SEC Filing

Rhea-AI Filing Summary

Great Lakes Dredge & Dock Corporation (GLDD) filed a Form 144 notifying a proposed sale of 59,805 common shares via Fidelity Brokerage Services LLC on NASDAQ, with an aggregate market value of $686,583.34 and 67,995,301 shares outstanding. The sale is slated for 08/11/2025.

The filing shows the shares were acquired through employee purchase plans and restricted stock vesting between 03/05/2022 and 04/25/2024, listed as ESPP purchases and compensation-related vesting. The form reports no securities sold by the person in the past three months. Several filer identification fields in the provided content are blank.

Positive

• Securities to be sold are from ESPP purchases and restricted stock vesting, indicating routine employee liquidity rather than new dilution
• No securities sold in the past three months by the person, as reported in the filing

Negative

• Filer identification fields are blank in the provided content (CIK/name/contact fields not populated), reducing transparency
• Insider sale is reported, which some investors may view as a signal despite the small size relative to outstanding shares

Insights

Securities Analyst

TL;DR: Proposed insider sale of 59,805 shares valued at $686,583 is routine given acquisitions via ESPP and vesting; size appears immaterial to cap structure.

The filing indicates the shares originated from ESPP purchases and restricted stock vesting across multiple dates, and will be sold through Fidelity on NASDAQ. With 67,995,301 shares outstanding, the sale represents a very small portion of the float, suggesting limited market impact. The aggregate value is disclosed and no sales were reported in the past three months.

Corporate Governance Expert

TL;DR: Disclosure is standard for Rule 144 sales, but the provided content omits some filer-identifying fields, reducing transparency.

The transaction documentation follows Rule 144 format and lists acquisition details by date and nature (ESPP and vesting). However, several filer information fields appear blank in the supplied text, which is notable for governance and compliance review because full filer identification is typically expected on public notices. The filing otherwise shows routine compensation-related liquidity.

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	59805	686583.34	67995301	08/11/2025	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	03/05/2022	ESPP Purchase	Issuer			3038	03/05/2022	Cash
Common	02/28/2023	Restricted Stock Vesting	Issuer			1785	02/28/2023	Compensation
Common	03/05/2023	Restricted Stock Vesting	Issuer			2867	03/05/2023	Compensation
Common	05/05/2023	Restricted Stock Vesting	Issuer			2567	05/05/2023	Compensation
Common	08/31/2023	ESPP Purchase	Issuer			1437	08/31/2023	Cash
Common	03/05/2024	Restricted Stock Vesting	Issuer			3150	03/05/2024	Compensation
Common	03/15/2024	Restricted Stock Vesting	Issuer			14636	03/15/2024	Compensation
Common	04/25/2024	Restricted Stock Vesting	Issuer			30325	04/25/2024	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does the GLDD Form 144 disclose?

The Form 144 discloses a proposed sale of 59,805 common shares on 08/11/2025 via Fidelity Brokerage Services LLC, with aggregate market value $686,583.34 on NASDAQ.

How were the GLDD shares being sold acquired?

The shares were acquired through ESPP purchases and restricted stock vesting on dates between 03/05/2022 and 04/25/2024, as listed in the filing.

Does the filing show recent sales by the same person?

The filing states "Nothing to Report" under securities sold during the past three months for the person whose account the sale concerns.

Who will execute the sale for GLDD shares?

The brokerage named in the filing is Fidelity Brokerage Services LLC, 900 Salem Street, Smithfield, RI 02917.

How large is the sale relative to GLDD's outstanding shares?

The filing lists 67,995,301 shares outstanding and the proposed sale of 59,805 shares; the filing does not label this as material.