SCHEDULE: Dimensional Fund Advisors Reports 0% Stake in Great Lakes Dredge & Dock

Dimensional Fund Advisors LP has filed a Schedule 13G, reporting no beneficial ownership of Great Lakes Dredge & Dock Corp. common stock as of June 30, 2026.

Summary

• Dimensional Fund Advisors LP (DFA) has filed an amendment to its Schedule 13G filing concerning Great Lakes Dredge & Dock Corp.
• As of June 30, 2026, DFA reported that it beneficially owns 0.00 shares of Great Lakes Dredge & Dock Corp. common stock.
• This represents 0.0% of the class of securities.
• DFA acts as an investment adviser to various investment companies and commingled funds.
• While DFA may possess voting and/or investment power over securities owned by these funds, it disclaims beneficial ownership of all reported securities.
• The securities are owned by the funds managed by DFA, and no single fund's interest is known to exceed 5% of the class.

Sentiment

Score: 5

Explanation: StockSavvy.ai views this as a neutral filing, as it primarily serves as a routine disclosure of ownership status by an investment manager and does not contain operational or financial performance information about the underlying company.

Positives

• Dimensional Fund Advisors LP has maintained transparency by filing the required Schedule 13G amendment.
• The filing confirms that DFA is not seeking to influence or control Great Lakes Dredge & Dock Corp.

Negatives

• Dimensional Fund Advisors LP holds no beneficial ownership in Great Lakes Dredge & Dock Corp., indicating no current investment conviction from this significant asset manager.

Risks

• The filing does not indicate any specific risks related to Great Lakes Dredge & Dock Corp. itself, but rather pertains to DFA's reporting obligations.
• Potential for misinterpretation of DFA's role if the disclaimer of beneficial ownership is overlooked.

Future Outlook

The filing is a reporting document and does not contain forward-looking statements or guidance regarding Great Lakes Dredge & Dock Corp.'s future performance.

Management Comments

• "Dimensional Fund Advisors LP, an investment adviser registered under Section 203 of the Investment Advisors Act of 1940, furnishes investment advice to four investment companies registered under the Investment Company Act of 1940, and serves as investment manager or sub-adviser to certain other commingled funds, group trusts and separate accounts..."
• "Dimensional disclaims beneficial ownership of such securities."
• "In addition, the filing of this Schedule 13G shall not be construed as an admission that the reporting person or any of its affiliates is the beneficial owner of any securities covered by this Schedule 13G for any other purposes than Section 13(d) of the Securities Exchange Act of 1934."
• "By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect..."

Industry Context

StockSavvy.ai notes that Schedule 13G filings are routine for large institutional investors like Dimensional Fund Advisors LP, indicating their reporting obligations rather than a specific investment thesis or change in strategy regarding Great Lakes Dredge & Dock Corp.

Stakeholder Impact

• Shareholders: No immediate impact as this is a routine disclosure and does not reflect a change in investment strategy or significant ownership by DFA.
• Management of Great Lakes Dredge & Dock Corp.: No direct impact, as DFA is disclaiming beneficial ownership and not seeking to influence control.
• Regulators: Ensures compliance with SEC reporting requirements.

Next Steps

• Dimensional Fund Advisors LP will continue to manage its funds in accordance with its investment strategies.
• Great Lakes Dredge & Dock Corp. will continue its business operations as usual.

Key Dates

Keywords

Schedule 13G, Dimensional Fund Advisors LP, Great Lakes Dredge & Dock Corp, SEC Filing, Beneficial Ownership, Investment Adviser, Common Stock, Securities