SCHEDULE: Mink Brook Group Boosts DLH Holdings Stake to 17.8%

Mink Brook Partners LP, Mink Brook Opportunity Fund LP, and affiliates, including William Mueller, collectively reported a 17.8% beneficial ownership stake in DLH Holdings Corp. common stock.

Summary

• Mink Brook Partners LP, Mink Brook Opportunity Fund LP, Mink Brook Capital GP LLC, William Mueller, and Mink Brook Asset Management LLC filed an Amendment No. 4 to Schedule 13G for DLH Holdings Corp.
• As of September 30, 2025, the Mink Brook entities and William Mueller collectively beneficially own 2,566,349 shares of DLH Holdings Corp. common stock.
• This aggregate ownership represents 17.8% of the company's outstanding common stock, based on 14,386,468 shares outstanding as of August 6, 2025, as disclosed in DLH Holdings' Form 10-Q.
• Mink Brook Partners LP holds 1,872,027 shares, representing 13.0% of the class.
• Mink Brook Opportunity Fund LP holds 694,322 shares, representing 4.8% of the class.
• Mink Brook Capital GP LLC, as the general partner to both Mink Brook Partners LP and Mink Brook Opportunity Fund LP, is deemed to have shared voting and dispositive power over the combined 2,566,349 shares.
• William Mueller, as the managing member of Mink Brook Capital GP LLC and Mink Brook Asset Management LLC, is also deemed to have shared voting and dispositive power over the 2,566,349 shares.
• The reporting persons certified that the securities were not acquired or held for the purpose of changing or influencing control of the issuer, other than activities solely in connection with a nomination under Rule 14a-11.

Sentiment

Score: 7

Explanation: The accumulation of a significant stake (17.8%) by an investment group like Mink Brook generally indicates a positive view on the company's value and future prospects, suggesting confidence from a sophisticated investor.

Positives

• A significant institutional investor group, Mink Brook, has accumulated a substantial 17.8% stake in DLH Holdings Corp., indicating confidence in the company's long-term prospects.
• The aggregation of shares by related entities suggests a coordinated investment strategy and a strong conviction in the company's value.

Risks

• Despite the disclaimer of intent to influence control, a large ownership stake (17.8%) by an investment group could still lead to future shareholder activism or pressure on management regarding strategic decisions.

Future Outlook

NA

Industry Context

NA

Stakeholder Impact

• Shareholders: Increased institutional ownership could provide stability and potentially lead to greater oversight or strategic input, which may benefit long-term shareholder value.
• Management: A significant shareholder group may exert influence on strategic decisions, even if they disclaim intent to control, potentially leading to increased scrutiny or collaboration.

Key Dates

Recommendation

The filing indicates a significant and coordinated investment by Mink Brook entities, reaching 17.8% beneficial ownership. While this demonstrates strong institutional confidence, the filing itself is a disclosure of ownership rather than new operational or financial performance data. The certification explicitly states the shares were not acquired for the purpose of changing or influencing control, mitigating immediate activist concerns. Given the substantial stake, it suggests a long-term conviction, making a 'hold' recommendation appropriate for existing investors to observe how this significant ownership translates into future company performance or strategic direction. New investors might consider this a positive signal but should await further operational updates before making a 'buy' decision.

Keywords

DLH Holdings Corp., Mink Brook Partners, Mink Brook Opportunity Fund, Mink Brook Capital, William Mueller, Beneficial Ownership, Schedule 13G, Institutional Investor, Common Stock, Shareholder Stake