Company: EVF
Filing Date: 2025-05-01
Form Type: 424B3
Source: 0001076598-25-000099
Chunk: 18

Company: Eaton Vance Senior Income Trust
Filing Date: 2025-05-01
Form: 424B3
Chunk 18
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 and trading strategies
and concepts developed by the Adviser or its affiliates (“Adviser Strategies”). Some of the Funds seek to track the performance
of the Indexes. The Adviser manages Accounts which track the same Indexes used by the Funds or which are based on the same, or substantially
similar, Adviser Strategies that are used in the operation of the Indexes and the Funds. The operation of the Indexes, the Funds and the
Accounts in this manner gives rise to potential conflicts of interest. For example, Accounts that track the same Indexes used by the Funds
may engage in purchases and sales of securities prior to when the Index and the Funds engage in similar transactions because such Accounts
may be managed and rebalanced on an ongoing basis, whereas the Funds’ portfolios are only rebalanced on a periodic or other basis
subsequent to the rebalancing of the Index.

The Adviser has adopted policies and procedures that
are designed to address potential conflicts that arise in connection with the operation of the Indexes, the Funds and the Accounts. The
Adviser has established certain information barriers and other policies designed to address the sharing of information between different
businesses within the Investment Adviser, including with respect to personnel responsible for constructing and maintaining the Indexes
and those involved in decision-making for the Funds.

Valuation of the Funds’ Investments.The
Adviser performs certain valuation services related to securities and other assets held by the Funds and performs such services in accordance
with its valuation policies. The Adviser will face a conflict with respect to valuation of the Funds’ investments generally because
of the effect of such valuations on the Adviser’s fees and other compensation and performance of the Funds.

Proxy Voting by the Adviser.The Adviser has
implemented processes designed to prevent conflicts of interest from influencing proxy voting decisions that it makes on behalf of advisory
clients, including the Funds, and to help ensure that such decisions are made in accordance with its fiduciary obligations to its clients.
Notwithstanding such proxy voting processes, proxy voting decisions made by the Adviser in respect of securities held by the Funds may
benefit the interests of Morgan Stanley and/or accounts other than the Funds. Further, the Adviser may make different proxy voting decisions
in respect of the same security held by clients with different investment objectives or strategies. For a more detailed discussion of
these policies and procedures, see Appendix B, Appendix C and Appendix D of this SAI.

Potential Conflict of Interest Related to Use of