The Fund invests, under normal circumstances, at least 80% of its assets in a diversified portfolio of domestic equity securities of mid cap companies. Equity securities include common stock and any rights to purchase common stock. “Assets” means net assets, plus the amount of borrowings for investment purposes. Shareholders will be given 60 days’ advance notice of any change to this policy. For these purposes, Boston Trust Walden Inc. (the “Adviser”) defines mid cap companies as those with market capitalizations within the range encompassed by the Russell Midcap® Index at the time of purchase. The size of companies in the Russell Midcap® Index may change with market conditions. In addition, changes to the composition of the Russell Midcap® Index can change the market capitalization range of the companies included in the index. As of December 31, 2023, the market capitalization range of the Russell Midcap® Index was between $352 million and $89 billion. However, the Fund generally excludes securities with market capitalization less than $2 billion at time of purchase.

ESG Integration: As part of the investment decision making process for the Fund, the Adviser evaluates how financially material environmental, social, and governance (ESG) risks and opportunities may affect a company’s revenues, expenses, assets, liabilities, and overall risk. The consideration of ESG risks and opportunities in investment decision-making is referred to as “ESG integration.” The Adviser considers “financial materiality” as it is understood in generally accepted accounting principles — information that would influence the judgment of an informed investor. The integration of significant ESG risks and opportunities is often a subjective exercise and may differ depending upon the characteristics of the asset class. For example, the integration process of fixed income securities will generally depend on the type of security; state and municipal securities may be either general obligations or may be for a specific purpose which may have positive or negative environmental impact. In addition, the Adviser utilizes active ownership strategies to encourage sustainable business policies and practices (e.g., effective climate risk management) and greater ESG transparency (e.g., good disclosure of salient ESG risk and opportunities). Active ownership strategies include communicating directly with company management teams or boards; filing proposals for vote at company annual general meetings; voting on ballot items in company proxy statements; and engaging public policymakers.

ESG Screening: While the Adviser integrates ESG risks and opportunities into its investment decision-making, the Fund is also subject to ESG screening criteria. ESG screening criteria requires the Adviser to exclude companies with significant exposure to specific products or services: alcohol production; coal mining; factory farming operations; gambling; handguns; nuclear power fuel cycle; prison operations; tobacco manufacturing; and weapons systems. The Adviser assesses the company’s revenue dependence on these specific products/services, market share (e.g., if a company is a market leader in the product despite it representing a relatively small share of the company’s total revenue), and magnitude of involvement (e.g., the company produces a minor electronic component for a weapons system). The Adviser also exercises its full discretion

in evaluating the overall performance of each company. The Adviser considers: performance over time (relative to peers and established goals); accountability and disclosure; and impacts on stakeholders. The Fund’s screening criteria is measured at one or more points in time and is dependent upon information that may be incomplete, inaccurate, unavailable, or estimated. The information is sourced from a variety of public and private resources believed to be accurate, but the Adviser may not independently verify such data. This screening criteria is subject to change over time at the Adviser’s discretion. For each potential investment, the Adviser seeks to understand the company’s products and services and evaluates overall performance in four broad categories: corporate governance, human capital management, environmental impacts, and community impacts. The Fund may avoid companies it judges to have substandard performance in one or more of these areas.