SCHEDULE: CastleKnight Discloses 5.9% Stake in Advantage Solutions

CastleKnight Master Fund LP and affiliated entities report beneficial ownership of 5.9% of Advantage Solutions Inc. Class A common stock.

Summary

• CastleKnight Master Fund LP, along with CastleKnight Fund GP LLC, CastleKnight Management LP, CastleKnight Management GP LLC, Weitman Capital LLC, and Aaron Weitman, have filed a Schedule 13G.
• This filing indicates their beneficial ownership of 757,354 shares of Advantage Solutions Inc. Class A common stock.
• This ownership represents 5.9% of the class of securities.
• The reporting date for this ownership is August 14, 2026.
• As of June 30, 2026, the reporting persons beneficially owned 581,347 shares.

Sentiment

Score: 3

Explanation: StockSavvy.ai views this as a neutral filing, primarily reporting a change in beneficial ownership percentage without indicating new strategic actions or significant financial performance changes.

Positives

• Increased beneficial ownership reported by CastleKnight entities, indicating continued investment interest.
• The filing clearly states the exact number of shares owned (757,354) and the percentage of the class (5.9%).

Negatives

• The filing does not provide any information on the reasons for the change in ownership or the investment strategy.
• No forward-looking statements or financial performance data are included in this Schedule 13G filing.

Risks

• Potential for increased market activity or volatility if CastleKnight decides to further adjust its stake.
• The concentration of ownership among a few entities could influence future corporate actions.

Future Outlook

This filing is a Schedule 13G, which reports beneficial ownership and does not contain forward-looking statements or company guidance.

Industry Context

StockSavvy.ai notes that Schedule 13G filings are common for institutional investors accumulating significant stakes in public companies. This filing indicates CastleKnight's growing position in Advantage Solutions, a company operating in the consumer packaged goods and retail services sector.

Stakeholder Impact

• Shareholders may observe increased trading volume or price fluctuations due to the significant stake held by CastleKnight.
• Management of Advantage Solutions Inc. will be aware of CastleKnight's substantial ownership, potentially influencing strategic discussions.

Next Steps

• Monitor future filings from CastleKnight Master Fund LP and affiliated entities for any further changes in beneficial ownership.
• Observe Advantage Solutions Inc.'s stock performance and strategic announcements for potential impacts of this ownership stake.

Key Dates

Keywords

Advantage Solutions Inc., CastleKnight Master Fund LP, Schedule 13G, Beneficial Ownership, Class A common stock, Investment Holding