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MSC Income Fund Reports Third Quarter 2026 Private Loan Activity

Houston, Oct. 8, 2026 — MSC Income Fund, Inc. (NYSE: MSIF) has made significant strides in its private loan portfolio during the third quarter of 2026. The Fund is excited to announce the origination of new and increased commitments totalling $62.2 million, while the total investments in the private loan portfolio amounted to a cost basis of $61.4 million.

New Commitments

Key highlights from this quarter include notable private loan commitments that reflect MSC Income's focused growth strategy. The breakdown of these commitments is as follows:

• - $14.1 million in a first lien senior secured term loan.
• - $2.6 million in a first lien senior secured revolver.
• - $5.1 million in a first lien senior secured delayed draw term loan.
• - $0.6 million in equity designated for a provider of manufacturer representation services and power systems integration.

Additionally, there are substantial investments into a distributor of medium-voltage cables and accessories:

• - $6.7 million via a first lien senior secured term loan.
• - $3.8 million in a first lien senior secured revolver.
• - $4.2 million in a first lien secured delayed draw term loan.
• - $0.3 million in equity.

Lastly, investments were made into a manufacturer of industrial mixing equipment:

• - $10.9 million through a first lien senior secured term loan.
• - $3.2 million in a first lien senior secured revolver.
• - $1.0 million in equity.

These strategic commitments serve to strengthen MSC Income’s investment portfolio while supporting various industries.

Portfolio Overview

As of September 30, 2026, the Fund's private loan portfolio boasted a total investment cost of approximately $849.6 million spread across 81 unique companies. The portfolio primarily comprises first lien senior secured debt investments, which constitute 90.1% of the total cost, while 9.9% is allocated towards equity investments and other securities.

About MSC Income Fund, Inc.

The MSC Income Fund is a principal investment entity that directs debt capital to private firms typically owned or set to be acquired by private equity funds. The Fund's investment strategy is designed to facilitate leveraged buyouts, recapitalizations, growth financings, refinancings, and company acquisitions across multiple sectors.

In its efforts, the Fund collaborates with private equity sponsors and leans towards secured debt investments within its private loan activities. Furthermore, it enhances its portfolio through customized long-term debt and equity investments in lower middle-market businesses. This partnership approach emphasizes co-investment opportunities with Main Street Capital Corporation (NYSE: MAIN), which provides unique financing solutions tailored to lower middle-market entities.

The Fund generally targets companies with annual revenues ranging from $25 million to $500 million for its private loan portfolio and $10 million to $150 million for its lower middle-market investments.

About Main Street Capital Partners

Main Street Capital Partners, a wholly-owned subsidiary of Main Street, functions as an investment advisor and administrator for MSC Income Fund and other clients. Registered under the Investment Advisers Act of 1940, MSCP is responsible for both strategic and operational aspects of the Fund’s advisory services going forward.

For more information on the MSC Income Fund and its portfolio activities, please visit www.mscincomefund.com.