Exhibit 99.1 MidCap Financial Investment Corporation Reports Financial Results for the Quarter Ended September 30, 2025 Results for the Quarter Ended September 30, 2025 and Other Recent Highlights: 1 • Net investment income per share for the quarter was $0.38, compared to $0.39 for the quarter ended June 30, 2025 • Net asset value per share as of the end of the quarter was $14.66, compared to $14.75 as of June 30, 2025, a decrease of 0.6% • New investment commitments made during the quarter totaled $138 mil ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2025 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 814-00646 MIDCAP FINANCIAL INVESTMENT CORPORATION (Exact name of Registrant as specified in its charter) Maryland 52-2439556 (State or other jurisdiction ...

Exhibit 99.1 MidCap Financial Investment Corporation Reports Financial Results for the Quarter Ended June 30, 2025 Results for the Quarter Ended June 30, 2025 and Other Recent Highlights: New York, NY — August 11, 2025 — MidCap Financial Investment Corporation (NASDAQ: MFIC) or the "Company," today announced financial results for the quarter ended June 30, 2025. The Company's net investment income was $0.39 per share for the quarter ended June 30, 2025, compared to $0.37 per share for the quarter ended Marc ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 814-00646 MIDCAP FINANCIAL INVESTMENT CORPORATION (Exact name of Registrant as specified in its charter) Maryland 52-2439556 (State or other jurisdiction of in ...

[Executive Summary & Highlights](index=1&type=section&id=executive-summary-highlights) [Quarterly Financial Performance Overview](index=1&type=section&id=quarterly-financial-performance-overview) MidCap Financial Investment Corporation reported a net investment income of $0.37 per share for Q1 2025, a decrease from $0.40 per share in Q4 2024. Net asset value per share also slightly decreased to $14.93 from $14.98. The Board declared a dividend of $0.38 per share | Metric | Q1 2025 | Q4 2024 | Change (QoQ) | | :----- | :------ | :------ | :----------- | | Net Investment Income per share | $0.37 | $0.40 | -$0.03 | | Net Asset Value (NAV) per share | $14.93 | $14.98 | -$0.05 | - The Board declared a dividend of **$0.38 per share** payable on June 26, 2025, to stockholders of record as of June 10, 2025[3](index=3&type=chunk)[5](index=5&type=chunk) [CEO Commentary](index=1&type=section&id=ceo-commentary) CEO Tanner Powell highlighted solid first-quarter results, including healthy earnings, reduced non-accruals, and strong portfolio growth. The company continued to deploy investment capacity from recent mergers into MidCap Financial originated assets, partially offset by sales of non-directly originated assets. Stock was repurchased below NAV, and the CEO sees potential opportunities despite market volatility - Reported **solid first quarter results** including a healthy level of earnings, a **reduction in non-accruals**, and **strong portfolio growth**[4](index=4&type=chunk) - Continued to **deploy investment capacity** generated from recent mergers into assets originated by MidCap Financial, partially offset by ongoing sales and repayments of non-directly originated assets[4](index=4&type=chunk) - **Repurchased some stock below NAV** during the quarter and believes the current environment may **present opportunities** that MidCap Financial and MFIC are well-equipped to capitalize on[4](index=4&type=chunk) [Key Operational & Financial Highlights](index=1&type=section&id=key-operational-financial-highlights) Key highlights for Q1 2025 include $0.37 net investment income per share, a NAV of $14.93 per share (down 0.3% QoQ), $376 million in new investment commitments, $357 million in gross fundings, and $170 million in net fundings. The net leverage ratio was 1.31x. The company repurchased 476,656 shares for $6.1 million and completed a $529.6 million CLO transaction | Metric | Value (Q1 2025) | Previous Period (Q4 2024) | Change | | :----- | :-------------- | :------------------------ | :----- | | Net investment income per share | $0.37 | $0.40 | -$0.03 | | Net asset value per share | $14.93 | $14.98 | -0.3% | | New investment commitments | $376 million | N/A | N/A | | Gross fundings (excl. revolver) | $357 million | N/A | N/A | | Net fundings (incl. revolvers) | $170 million | N/A | N/A | | Net leverage | 1.31x | 1.16x | +0.15x | - **Repurchased 476,656 shares** of common stock at a weighted average price per share of **$12.75**, inclusive of commissions, for an aggregate **cost of $6.1 million** during the quarter[5](index=5&type=chunk) - **Completed Collateralized Loan Obligation ("CLO") transaction**, MFIC Bethesda CLO 2 LLC, a **$529.6 million CLO** secured by middle market loans in February 2025[5](index=5&type=chunk) [Financial Performance](index=3&type=section&id=financial-performance) [Summary Financial Metrics](index=3&type=section&id=summary-financial-metrics) Total assets increased to $3.36 billion as of March 31, 2025, from $3.19 billion in the prior quarter. The investment portfolio grew to $3.19 billion. Debt outstanding rose to $1.94 billion, leading to an increase in the debt-to-equity ratio to 1.39x and net leverage ratio to 1.31x. NAV per share slightly declined | Metric ($ in billions, except per share data) | March 31, 2025 | December 31, 2024 | Change (QoQ) | | :------------------------------------- | :------------- | :---------------- | :----------- | | Total assets | $3.36 | $3.19 | +$0.17 | | Investment portfolio (fair value) | $3.19 | $3.01 | +$0.18 | | Debt outstanding | $1.94 | $1.75 | +$0.19 | | Net assets | $1.39 | $1.40 | -$0.01 | | Net asset value per share | $14.93 | $14.98 | -$0.05 | | Debt-to-equity ratio | 1.39x | 1.25x | +0.14x | | Net leverage ratio | 1.31x | 1.16x | +0.15x | [Operating Results Analysis](index=3&type=section&id=operating-results-analysis) Net investment income for Q1 2025 was $34.3 million, up from $28.5 million in Q1 2024. However, net realized and change in unrealized losses increased to $4.0 million from $3.1 million year-over-year. This resulted in a net increase in net assets from operations of $30.3 million, compared to $25.5 million in the prior year. Earnings per share decreased to $0.32 from $0.39 YoY | Metric (in millions, except per share) | Three Months Ended March 31, 2025 | Three Months Ended March 31, 2024 | Change (YoY) | | :------------------------------------- | :-------------------------------- | :-------------------------------- | :----------- | | Net investment income | $34.3 | $28.5 | +$5.8 | | Net realized and change in unrealized gains (losses) | ($4.0) | ($3.1) | -$0.9 | | Net increase in net assets resulting from operations | $30.3 | $25.5 | +$4.8 | | Net investment income on per average share basis | $0.37 | $0.44 | -$0.07 | | Earnings per share — basic | $0.32 | $0.39 | -$0.07 | - Total investment income increased to **$78.7 million** in Q1 2025 from **$68.3 million** in Q1 2024, primarily driven by higher interest income from non-controlled/non-affiliated investments[23](index=23&type=chunk) - Total expenses increased to **$45.2 million** in Q1 2025 from **$39.9 million** in Q1 2024, mainly due to higher management fees, performance-based incentive fees, and interest and other debt expenses[23](index=23&type=chunk) [Balance Sheet Overview](index=7&type=section&id=balance-sheet-overview) As of March 31, 2025, total assets were $3.36 billion, with investments at fair value totaling $3.19 billion. Debt outstanding was $1.94 billion, and total liabilities were $1.96 billion. Net assets stood at $1.39 billion, resulting in a net asset value per share of $14.93 | Metric (in thousands) | March 31, 2025 | December 31, 2024 | Change (QoQ) | | :-------------------- | :------------- | :---------------- | :----------- | | Total Assets | $3,355,699 | $3,190,950 | +$164,749 | | Investments at fair value | $3,188,621 | $3,012,416 | +$176,205 | | Debt | $1,935,242 | $1,751,621 | +$183,621 | | Total Liabilities | $1,962,439 | $1,786,304 | +$176,135 | | Net Assets | $1,393,260 | $1,404,646 | -$11,386 | | Net Asset Value Per Share | $14.93 | $14.98 | -$0.05 | - Cash and cash equivalents increased to **$83.7 million** as of March 31, 2025, from **$74.4 million** as of December 31, 2024[21](index=21&type=chunk) [Portfolio and Investment Activity](index=3&type=section&id=portfolio-investment-activity) [Investment Activity Summary](index=3&type=section&id=investment-activity-summary) Investments made in portfolio companies significantly increased to $391.9 million in Q1 2025 from $152.8 million in Q1 2024. After accounting for sales and repayments, net investment activity was $170.4 million, a substantial increase from $15.9 million year-over-year. The number of portfolio companies grew to 240, adding 20 new companies while exiting 13 | Metric (in millions) | Three Months Ended March 31, 2025 | Three Months Ended March 31, 2024 | Change (YoY) | | :------------------- | :-------------------------------- | :-------------------------------- | :----------- | | Investments made in portfolio companies | $391.9 | $152.8 | +$239.1 | | Investments sold | ($43.9) | — | -$43.9 | | Investments repaid | ($177.6) | ($136.9) | -$40.7 | | Net investment activity | $170.4 | $15.9 | +$154.5 | | Portfolio companies at end of period | 240 | 154 | +86 | | Number of investments in new portfolio companies | 20 | 7 | +13 | | Number of exited companies | (13) | (5) | -8 | [Portfolio Composition and Yields](index=6&type=section&id=portfolio-composition-yields) As of March 31, 2025, the portfolio remained heavily concentrated in first lien secured debt at 93% of fair value. Total secured debt accounted for 93% of the portfolio. The weighted average yield for first lien secured debt was 10.5%, and for the total debt portfolio was 10.5%. The portfolio is predominantly floating rate, representing 99% of the total | Portfolio Composition (at fair value) | March 31, 2025 | December 31, 2024 | March 31, 2024 | | :------------------------------------ | :------------- | :---------------- | :------------- | | First lien secured debt | 93% | 92% | 90% | | Second lien secured debt | 0% | 1% | 1% | | Total secured debt | 93% | 93% | 91% | | Common equity/interests and warrants | 5% | 5% | 7% | | Weighted Average Yields (at amortized cost) | March 31, 2025 | December 31, 2024 | March 31, 2024 | | :------------------------------------------ | :------------- | :---------------- | :------------- | | First lien secured debt | 10.5% | 10.8% | 12.0% | | Total debt portfolio | 10.5% | 10.8% | 12.0% | | Total portfolio | 9.4% | 9.5% | 10.0% | - The portfolio is predominantly floating rate, with **99% of the total interest rate type** at fair value being floating rate as of March 31, 2025[18](index=18&type=chunk) [Capital Management & Liquidity](index=4&type=section&id=capital-management-liquidity) [Share Repurchase Program](index=4&type=section&id=share-repurchase-program) During Q1 2025, the Company repurchased 476,656 shares for $6.1 million at a weighted average price of $12.75, representing a 14.72% discount to the average NAV per share. Since inception, the program has repurchased 16,069,776 shares for $254.2 million, with $20.8 million remaining under the current $275 million authorization - During the three months ended March 31, 2025, the Company **repurchased 476,656 shares** at a weighted average price per share of **$12.75** for a **total cost of $6.1 million**, representing a discount of approximately **14.72%** of the average net asset value per share[11](index=11&type=chunk) - Since the inception of the share repurchase program and through May 12, 2025, the Company repurchased **16,069,776 shares** for a **total cost of $254.2 million**, leaving a maximum of **$20.8 million available** for future purchases under the current Board authorization of **$275 million**[12](index=12&type=chunk) [Liquidity and Debt Obligations](index=4&type=section&id=liquidity-debt-obligations) As of March 31, 2025, total outstanding debt obligations were $1.942 billion, comprising Senior Unsecured Notes, Class A-1 Notes in MFIC Bethesda CLO 1 LLC, secured debt in MFIC Bethesda CLO 2 LLC, and outstanding amounts under its multi-currency revolving credit facility. The Company had $548 million in available remaining capacity under its revolving credit facility | Debt Obligation Type | Amount (as of March 31, 2025) | | :------------------- | :---------------------------- | | Total outstanding debt obligations | $1.942 billion | | Senior Unsecured Notes (2026 Notes) | $125 million | | Senior Unsecured Notes (2028 Notes) | $80 million | | Class A-1 Notes (MFIC Bethesda CLO 1 LLC) | $232 million | | Secured debt (MFIC Bethesda CLO 2 LLC) | $399 million | | Multi-currency revolving credit facility | $1,106 million outstanding | - The available remaining capacity under the multi-currency revolving credit facility was **$548 million** as of March 31, 2025[14](index=14&type=chunk) [Corporate Information & Disclosures](index=5&type=section&id=corporate-information-disclosures) [Investor Relations & Supplemental Information](index=5&type=section&id=investor-relations-supplemental-information) The Company will host a conference call on May 13, 2025, at 8:30 a.m. EDT, with details provided for participation and replay. A supplemental information package is also available on the Company's website to provide additional transparency - A **conference call will be hosted on Tuesday, May 13, 2025, at 8:30 a.m. Eastern Time**, with telephonic and webcast replay options available[16](index=16&type=chunk) - A **supplemental information package is provided** to offer more transparency into financial results and is available in the Shareholders section of the Company's website[17](index=17&type=chunk) [Company Profile](index=9&type=section&id=company-profile) MidCap Financial Investment Corporation (MFIC) is a closed-end, externally managed BDC and RIC, managed by an affiliate of Apollo Global Management. Its investment objective is to generate current income and long-term capital appreciation, primarily by investing in directly originated first lien senior secured loans to privately held U.S. middle-market companies - MidCap Financial Investment Corporation (NASDAQ: MFIC) is a **closed-end, externally managed, diversified management investment company** that has elected to be treated as a **business development company ("BDC") and a regulated investment company ("RIC")**[27](index=27&type=chunk) - The Company's investment objective is to **generate current income and, to a lesser extent, long-term capital appreciation**[27](index=27&type=chunk) - The Company **primarily invests in directly originated and privately negotiated first lien senior secured loans** to privately held U.S. middle-market companies[27](index=27&type=chunk) [Important Disclosures](index=9&type=section&id=important-disclosures) The report includes important information regarding investment considerations, SEC filings, and disclaimers about the nature of the communication as not an offer to sell securities. It also explicitly states that past performance is not indicative of future results and contains forward-looking statements that involve risks and uncertainties, which may cause actual results to differ materially - Investors are advised to **carefully consider the investment objective, risks, charges and expenses** of the Company before investing and to read the prospectus filed with the SEC[24](index=24&type=chunk) - **Past performance is not indicative of, or a guarantee of, future performance**, and **investment return and principal value of an investment will fluctuate**[26](index=26&type=chunk) - The press release contains **forward-looking statements that involve risks and uncertainties**, and certain factors could cause actual results and conditions to differ materially from those projected[28](index=28&type=chunk) [Contact Information](index=11&type=section&id=contact-information) Contact information for investor relations is provided for Elizabeth Besen, Investor Relations Manager at MidCap Financial Investment Corporation - **Elizabeth Besen, Investor Relations Manager** for MidCap Financial Investment Corporation, can be contacted at **212.822.0625 or ebesen@apollo.com**[30](index=30&type=chunk)

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 814-00646 MIDCAP FINANCIAL INVESTMENT CORPORATION (Exact name of Registrant as specified in its charter) Maryland 52-2439556 (State or other jurisdiction of i ...