N-CSR

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form N-CSR

CERTIFIED SHAREHOLDER REPORT OF REGISTERED

MANAGEMENT INVESTMENT COMPANIES

Investment Company Act File Number: 811-21411

Eaton Vance Senior Floating-Rate Trust

(Exact Name of Registrant as Specified in Charter)

Two International Place, Boston, Massachusetts 02110

(Address of Principal Executive Offices)

Deidre E. Walsh

Two International Place, Boston, Massachusetts 02110

(Name and Address of Agent for Services)

(617) 482-8260

(Registrant’s Telephone Number)

October 31

Date of Fiscal Year End

October 31, 2021

Date of Reporting Period

Item 1. Reports to Stockholders

Eaton Vance

Senior Floating-Rate Trust (EFR)

Annual Report

October 31, 2021

Commodity Futures Trading Commission Registration. The Commodity Futures Trading Commission (“CFTC”) has adopted regulations that subject registered investment companies and advisers to regulation by the CFTC if a fund invests more than a prescribed level of its assets in certain CFTC-regulated instruments (including futures, certain options and swap agreements) or markets itself as providing investment exposure to such instruments. The investment adviser has claimed an exclusion from the definition of “commodity pool operator” under the Commodity Exchange Act with respect to its management of the Fund. Accordingly, neither the Fund nor the adviser with respect to the operation of the Fund is subject to CFTC regulation. Because of its management of other strategies, the Fund’s adviser is registered with the CFTC as a commodity pool operator. The adviser is also registered as a commodity trading advisor.

Fund shares are not insured by the FDIC and are not deposits or other obligations of, or guaranteed by, any depository institution. Shares are subject to investment risks, including possible loss of principal invested.

Annual Report October 31, 2021

Eaton Vance

Senior Floating-Rate Trust

Table of Contents
Management’s Discussion of Fund Performance	2
Performance	3
Fund Profile	4
The Fund’s Investment Objectives, Principal Strategies and Principal Risks	5
Endnotes and Additional Disclosures	9
Financial Statements	10
Report of Independent Registered Public Accounting Firm	40
Federal Tax Information	41
Annual Meeting of Shareholders	42
Dividend Reinvestment Plan	43
Management and Organization	45
Privacy Notice	48
Important Notices	50

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Management’s Discussion of Fund Performance¹

Economic and Market Conditions

Amid a global recovery from the pandemic-induced sell-off that had engulfed equity and credit markets in March 2020, senior loans displayed their value as a portfolio diversifier by outperforming the majority of U.S. fixed-income asset classes — including government debt and investment-grade corporate bonds — during the 12-month period ended October 31, 2021.

As the period opened on November 1, 2020, senior loans were in the midst of a rally that had begun the previous March when central banks around the world stepped in to support capital markets. At that time, the U.S. Federal Reserve (the Fed) had cut its benchmark federal funds rate to 0.00%-0.25%, initiated a significant bond-buying program, and announced other policy measures to help global credit markets.

The loan rally continued through the rest of 2020 and into the new year, as senior loans offered attractive spreads versus other asset classes in a yield-starved environment. In the closing months of 2020, the easing of political uncertainties following the U.S. presidential election, coupled with the emergency approval and rollout of two COVID-19 vaccines, added fuel to the loan rally.

Except for pauses in March and July 2021 when returns were flat, the loan rally continued throughout the period. A massive fiscal stimulus package passed by the U.S. Congress, a still-accommodative set of monetary policies by the Fed, the ongoing rollout of vaccines, the reopening of U.S. businesses, and comparatively low yields in other fixed-income asset classes all provided tailwinds for senior loans during the period.

Technical factors also bolstered loan performance as demand outpaced supply for most of the period. Contributing factors included an increase in institutional demand for structured loan products and a return to net monthly inflows for retail funds in December 2020, for the first time since the previous January. Retail funds continued to experience monthly net inflows from the beginning of 2021 through period-end.

Issuer fundamentals improved as well, with rating upgrades outpacing rating downgrades during the period. The trailing 12-month default rate plummeted from 4.11% at the beginning of the period to 0.20% at period-end, well below the market’s 3.20% long-term average. Reflecting the improved economic environment, the average loan price rose from $93.17 at the start of the period to $98.55 at period-end.

For the period as a whole, lower quality loans outperformed higher quality issues, with BBB, BB, B, CCC and D rated (defaulted) loans in the S&P/LSTA Leveraged Loan Index (the Index), a broad measure of the asset class, returning 4.29%, 5.52%, 8.33%, 21.83%, and 5.80%, respectively, and the Index overall returning 8.47% during the one-year period.

Fund Performance

For the 12-month period ended October 31, 2021, Eaton Vance Senior Floating-Rate Trust (the Fund) returned 12.69% at net asset value of its common shares (NAV), outperforming its benchmark, the Index, which returned 8.47%.

The Index is unmanaged and returns do not reflect any applicable sales charges, commissions, expenses, or leverage.

The Fund’s use of investment leverage, which is not employed by the Index, was an overall contributor to performance relative to the Index. The Fund uses leverage to achieve additional exposure to the loan market, thus magnifying exposure to the Fund’s underlying investments in both up and down market environments. During a period when loan prices rose for the period as a whole, leverage magnified both the increase in value of the Fund’s underlying holdings and the interest income from those holdings.

The Fund’s allocation to high yield bonds, which generally outperformed loans during the period as investors searched for yield in a low-yield environment, also contributed to performance versus the Index. The Fund’s allocation to collateralized loan obligations (CLOs) helped relative returns as well. CLOs and high yield bonds are not represented in the Index.

In addition, security selections in the telecommunications and the cable & satellite TV industries contributed to performance versus the Index during the period.

In contrast, the Fund’s underweight position in loans rated CCC and below detracted from performance relative to the Index during a period when lower rated loans generally outperformed higher rated loans. Security selections in the electronics/electrical, business equipment & services, and aerospace & defense industries also detracted from Fund performance versus the Index during the period.

See Endnotes and Additional Disclosures in this report.

Past performance is no guarantee of future results. Returns are historical and are calculated net of management fees and other expenses by determining the percentage change in net asset value (NAV) or market price (as applicable) with all distributions reinvested in accordance with the Fund’s Dividend Reinvestment Plan. Performance at market price will differ from performance at NAV due to variations in the Fund’s market price versus NAV, which may reflect factors such as fluctuations in supply and demand for Fund shares, changes in Fund distributions, shifting market expectations for the Fund’s future returns and distribution rates, and other considerations affecting the trading prices of closed-end funds. Investment return and principal value will fluctuate so that shares, when sold, may be worth more or less than their original cost. Performance for periods less than or equal to one year is cumulative. Performance is for the stated time period only; due to market volatility, current Fund performance may be lower or higher than the quoted return. For performance as of the most recent month-end, please refer to eatonvance.com.

2

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Performance^2,3

Portfolio Managers Craig P. Russ, Andrew N. Sveen, CFA, Catherine C. McDermott, William E. Holt, CFA and Daniel P. McElaney, CFA

% Average Annual Total Returns	Inception Date		One Year			Five Years			Ten Years
Fund at NAV		11/28/2003		12.69	%		6.02	%		6.49	%
Fund at Market Price		—		33.21			7.94			7.19
S&P/LSTA Leveraged Loan Index		—		8.47	%		4.46	%		4.64	%
% Premium/Discount to NAV4
										4.20	%
Distributions5
Total Distributions per share for the period									$	0.862
Distribution Rate at NAV										6.82	%
Distribution Rate at Market Price										6.55
% Total Leverage6
Auction Preferred Shares (APS)										12.65	%
Borrowings										20.02

Growth of $10,000

This graph shows the change in value of a hypothetical investment of $10,000 in the Fund for the period indicated. For comparison, the same investment is shown in the indicated index.

See Endnotes and Additional Disclosures in this report.

Past performance is no guarantee of future results. Returns are historical and are calculated net of management fees and other expenses by determining the percentage change in net asset value (NAV) or market price (as applicable) with all distributions reinvested in accordance with the Fund’s Dividend Reinvestment Plan. Performance at market price will differ from performance at NAV due to variations in the Fund’s market price versus NAV, which may reflect factors such as fluctuations in supply and demand for Fund shares, changes in Fund distributions, shifting market expectations for the Fund’s future returns and distribution rates, and other considerations affecting the trading prices of closed-end funds. Investment return and principal value will fluctuate so that shares, when sold, may be worth more or less than their original cost. Performance for periods less than or equal to one year is cumulative. Performance is for the stated time period only; due to market volatility, current Fund performance may be lower or higher than the quoted return. For performance as of the most recent month-end, please refer to eatonvance.com.

3

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Fund Profile

Top 10 Issuers (% of total investments)⁷

Ultimate Software Group, Inc. (The)	1.0	%
MA FinanceCo., LLC	1.0
CITGO Petroleum Corporation	1.0
Virgin Media SFA Finance Limited	0.9
Asurion, LLC	0.9
Magenta Buyer, LLC	0.9
Uber Technologies, Inc.	0.8
Intelsat Jackson Holdings S.A.	0.8
Finastra USA, Inc.	0.8
UPC Broadband Holding B.V.	0.8
Total	8.9	%

Credit Quality (% of bonds, loans and asset-backed securities)⁸

Top 10 Sectors (% of total investments)⁷

Electronics/Electrical	19.7	%
Business Equipment and Services	10.7
Health Care	7.9
Automotive	4.5
Industrial Equipment	4.4
Chemicals and Plastics	3.8
Insurance	3.7
Building and Development	3.7
Leisure Goods/Activities/Movies	3.6
Oil and Gas	3.0
Total	65.0	%

See Endnotes and Additional Disclosures in this report.

4

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

The Fund’s Investment Objectives, Principal Strategies and Principal Risks⁹

Investment Objectives. The Fund’s investment objective is to provide a high level of current income. The Fund may, as a secondary objective, also seek preservation of capital to the extent consistent with its primary goal of high current income.

Principal Strategies. The Fund pursues its objectives by investing primarily in senior, secured floating rate loans (“Senior Loans”). Senior Loans typically are secured with specific collateral and have a claim on the assets and/or stock that is senior to subordinated debtholders and stockholders of the borrower. Senior Loans are loans in which the interest rate paid fluctuates based on a reference rate. Senior Loans are made to corporations, partnerships and other business entities (“Borrowers”) which operate in various industries and geographical regions. Senior Loans typically are of below investment grade quality and have below investment grade credit ratings, which are associated with investments having high risk, speculative characteristics (sometimes referred to as “junk”). The Fund may invest in individual Senior Loans and other securities of any credit quality.

Under normal market conditions, at least 80% of the Fund’s total assets will be invested in interests in Senior Loans of domestic and foreign borrowers that are denominated in U.S. dollars, euros, British pounds, Swiss francs, Canadian dollars and Australian dollars (each an “Authorized Foreign Currency”). For the purpose of the 80% test, total assets is defined as net assets plus any borrowings for investment purposes, including any outstanding preferred shares. The Fund may invest up to 15% of net assets in Senior Loans denominated in Authorized Foreign Currencies and may invest in other securities of non-United States issuers. The Fund’s investments may have significant exposure to certain sectors of the economy and thus may react differently to political or economic developments than the market as a whole.

Under normal market conditions, Eaton Vance expects the Fund to maintain a duration of less than one year (including the effect of leverage). In comparison to maturity (which is the date on which a debt instrument ceases and the issuer is obligated to repay the principal amount), duration is a measure of the price volatility of a debt instrument as a result of changes in market rates of interest, based on the weighted average timing of the instrument’s expected principal and interest payments. Duration differs from maturity in that it considers a security’s yield, coupon payments, principal payments and call features in addition to the amount of time until the security finally matures. As the value of a security changes over time, so will its duration. Prices of securities with longer durations tend to be more sensitive to interest rate changes than securities with shorter durations. In general, a portfolio of securities with a longer duration can be expected to be more sensitive to interest rate changes than a portfolio with a shorter duration. Investing in loans involves investment risk.

The Fund may invest up to 20% of its total assets in (i) loan interests which have (a) a second lien on collateral (“Second Lien”), (b) no security interest in the collateral, or (c) lower than a senior claim on collateral; (ii) other income-producing securities, such as investment and non-investment grade corporate debt securities and U.S. government and U.S. dollar-denominated foreign government or supranational debt securities; and (iii) warrants and equity securities issued by a Borrower or its affiliates as part of a package of investments in the Borrower or its affiliates.

The Fund may purchase or sell derivative instruments (which derive their value from another instrument, security or index) for risk management purposes, such as hedging against fluctuations in Senior Loans and other securities prices or interest rates; diversification purposes; changing the duration of the Fund; or leveraging the Fund. Transactions in derivative instruments may include the purchase or sale of futures contracts on securities, indices and other financial instruments, credit-linked notes, tranches of collateralized loan obligations and/or collateralized debt obligations, options on futures contracts, exchange-traded and over-the-counter options on securities or indices, forward foreign currency exchange contracts, and interest rate, total return and credit default swaps.

The Fund employs leverage to seek opportunities for additional income. Leverage may amplify the effect on the Fund’s NAV of any increase or decrease in the value of investments held. There can be no assurance that the use of borrowings will be successful. The Fund has issued preferred shares and borrowed to establish leverage. Investments in derivative instruments may result in economic leverage for the Fund.

Principal Risks

Market Risk. The value of investments held by the Fund may increase or decrease in response to economic, political, financial, public health crises (such as epidemics or pandemics) or other disruptive events (whether real, expected or perceived) in the U.S. and global markets. These events may negatively impact broad segments of businesses and populations and may exacerbate pre-existing risks to the Fund. The frequency and magnitude of resulting changes in the value of the Fund’s investments cannot be predicted. Certain securities and other investments held by the Fund may experience increased volatility, illiquidity, or other potentially adverse effects in reaction to changing market conditions. Monetary and/or fiscal actions taken by U.S. or foreign governments to stimulate or stabilize the global economy may not be effective and could lead to high market volatility. No active trading market may exist for certain investments held by the Fund, which may impair the ability of the Fund to sell or to realize the current valuation of such investments in the event of the need to liquidate such assets.

Credit Risk. Investments in fixed income and other debt obligations, including loans, (referred to below as “debt instruments”) are subject to the risk of non-payment of scheduled principal and interest. Changes in economic conditions or other circumstances may reduce the capacity of the party obligated to make principal and interest payments on such instruments and may lead to defaults. Such non-payments and defaults may reduce the value of Fund shares and income distributions. The value of debt instruments also may decline because of concerns about the issuer’s ability to make principal and interest payments. In addition, the credit ratings of debt instruments may be lowered if the financial condition of the party obligated to make payments with respect to such instruments deteriorates. In the event of bankruptcy of the issuer of a debt instrument, the Fund could experience delays or limitations with respect to its ability to realize the benefits of any collateral securing the instrument. In order to enforce its rights in the event of a default, bankruptcy or similar situation, the Fund may be required to retain legal or similar counsel, which may increase the Fund’s operating expenses and adversely affect net asset value. Due to their lower place in the borrower’s capital structure, secured and unsecured subordinated loans, second lien loans and subordinate bridge loans involve a higher degree of overall risk than Senior Loans to the same borrower.

See Endnotes and Additional Disclosures in this report.

5

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

The Fund’s Investment Objectives, Principal Strategies and Principal Risks⁹ — continued

Additional Risks of Loans. Loans are traded in a private, unregulated inter-dealer or inter-bank resale market and are generally subject to contractual restrictions that must be satisfied before a loan can be bought or sold. These restrictions may impede the Fund’s ability to buy or sell loans (thus affecting their liquidity) and may negatively impact the transaction price. See also “Market Risk” above. It also may take longer than seven days for transactions in loans to settle. The types of covenants included in loan agreements generally vary depending on market conditions, the creditworthiness of the issuer, the nature of the collateral securing the loan and possibly other factors. Loans with fewer covenants that restrict activities of the borrower may provide the borrower with more flexibility to take actions that may be detrimental to the loan holders and provide fewer investor protections in the event of such actions or if covenants are breached. The Fund may experience relatively greater realized or unrealized losses or delays and expense in enforcing its rights with respect to loans with fewer restrictive covenants. Loans to entities located outside of the U.S. may have substantially different lender protections and covenants as compared to loans to U.S. entities and may involve greater risks. The Fund may have difficulties and incur expense enforcing its rights with respect to non-U.S. loans and such loans could be subject to bankruptcy laws that are materially different than in the U.S. Loans may be structured such that they are not securities under securities law, and in the event of fraud or misrepresentation by a borrower, lenders may not have the protection of the anti-fraud provisions of the federal securities laws. Loans are also subject to risks associated with other types of income investments, including credit risk and risks of lower rated investments.

Lower Rated Investments Risk. Investments rated below investment grade and comparable unrated investments (sometimes referred to as “junk”) have speculative characteristics because of the credit risk associated with their issuers. Changes in economic conditions or other circumstances typically have a greater effect on the ability of issuers of lower rated investments to make principal and interest payments than they do on issuers of higher rated investments. An economic downturn generally leads to a higher non-payment rate, and a lower rated investment may lose significant value before a default occurs. Lower rated investments typically are subject to greater price volatility and illiquidity than higher rated investments.

Interest Rate Risk. In general, the value of debt instruments will fluctuate based on changes in interest rates. The value of these securities is likely to increase when interest rates fall and decline when interest rates rise. Duration measures the time-weighted expected cash flows of a fixed-income security, while maturity refers to the amount of time until a fixed-income security matures. Generally, securities with longer durations or maturities are more sensitive to changes in interest rates than securities with shorter durations or maturities, causing them to be more volatile. Conversely, fixed-income securities with shorter durations or maturities will be less volatile but may provide lower returns than fixed-income securities with longer durations or maturities. The impact of interest rate changes is significantly less for floating-rate instruments that have relatively short periodic rate resets (e.g., ninety days or less). In a rising interest rate environment, the duration of income securities that have the ability to be prepaid or called by the issuer may be extended. In a declining interest rate environment, the proceeds from prepaid or maturing instruments may have to be reinvested at a lower interest rate.

LIBOR Risk. The London Interbank Offered Rate or LIBOR is used throughout global banking and financial industries to determine interest

rates for a variety of financial instruments (such as debt instruments and derivatives) and borrowing arrangements. The ICE Benchmark Administration Limited, the administrator of LIBOR, is expected to cease publishing certain LIBOR settings on December 31, 2021, and the remaining LIBOR settings on June 30, 2023. The Fund has exposure to LIBOR-based instruments. Additionally, the Fund’s borrowings are subject to a LIBOR-based interest rate. Although the transition process away from LIBOR has become increasingly well defined in advance of the anticipated discontinuation, the impact on certain debt securities, derivatives and other financial instruments that utilize LIBOR remains uncertain. The transition process may involve, among other things, increased volatility or illiquidity in markets for instruments that currently rely on LIBOR, such as floating-rate debt obligations. Any effects of the transition away from LIBOR and the adoption of alternative reference rates, as well as other unforeseen effects, could result in losses to the Fund. Since the usefulness of LIBOR as a benchmark could deteriorate during the transition period, these effects may occur prior to the discontinuation. Furthermore, the risks associated with the expected discontinuation of LIBOR and transition to replacement rates may be exacerbated if an orderly transition to an alternative reference rate is not completed in a timely manner.

Leverage Risk. Leverage, including leverage from the issuance of preferred shares and borrowings, creates risks, including the likelihood of greater volatility of NAV and market price of, and distributions from, the common shares and the risk that fluctuations in dividend rates on preferred shares and in the costs of borrowings may affect the return to common shareholders. To the extent the income derived from investments purchased with funds received from leverage exceeds the cost of leverage, the Fund’s distributions will be greater than if leverage had not been used. Conversely, if the income from the investments purchased with such funds is not sufficient to cover the cost of leverage, the amount of income available for distribution to common shareholders will be less than if leverage had not been used. In the latter case, the investment adviser, may nevertheless determine to maintain the Fund’s leveraged position if it deems such action to be appropriate. While the Fund has preferred shares or borrowings outstanding, an increase in short-term rates would also result in an increased cost of leverage, which would adversely affect the Fund’s income available for distribution. In connection with its borrowings and preferred shares, the Fund will be required to maintain specified asset coverage by applicable federal securities laws and (as applicable) the terms of the preferred shares and its credit facility. The Fund may be required to dispose of portfolio investments on unfavorable terms if market fluctuations or other factors cause the required asset coverage to be less than the prescribed amount. There can be no assurance that a leveraging strategy will be successful.

Foreign Investment Risk. Foreign investments can be adversely affected by political, economic and market developments abroad, including the imposition of economic and other sanctions by the United States or another country. There may be less publicly available information about foreign issuers because they may not be subject to reporting practices, requirements or regulations comparable to those to which U.S. companies are subject. Foreign markets may be smaller, less liquid and more volatile than the major markets in the United States, and as a result, Fund share values may be more volatile. Trading in foreign markets typically involves higher expense than trading in the United States. The Fund may have difficulties enforcing its legal or contractual rights in a foreign country.

Emerging Markets Investment Risk. Investment markets within emerging market countries are typically smaller, less liquid, less developed and more

See Endnotes and Additional Disclosures in this report.

6

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

The Fund’s Investment Objectives, Principal Strategies and Principal Risks⁹ — continued

volatile than those in more developed markets like the United States, and may be focused in certain sectors. Emerging market securities often involve greater risks than developed market securities. The information available about an emerging market issuer may be less reliable than for comparable issuers in more developed capital markets.

Currency Risk. Exchange rates for currencies fluctuate daily. The value of foreign investments may be affected favorably or unfavorably by changes in currency exchange rates in relation to the U.S. dollar. Currency markets generally are not as regulated as securities markets and currency transactions are subject to settlement, custodial and other operational risks.

Derivatives Risk. The Fund’s exposure to derivatives involves risks different from, or possibly greater than, the risks associated with investing directly in securities and other investments. The use of derivatives can lead to losses because of adverse movements in the price or value of the security, instrument, index, currency, commodity, economic indicator or event underlying a derivative (“reference instrument”), due to failure of a counterparty or due to tax or regulatory constraints. Derivatives may create leverage in the Fund, which represents a non-cash exposure to the underlying reference instrument. Leverage can increase both the risk and return potential of the Fund. Derivatives risk may be more significant when derivatives are used to enhance return or as a substitute for a cash investment position, rather than solely to hedge the risk of a position held by the Fund. Use of derivatives involves the exercise of specialized skill and judgment, and a transaction may be unsuccessful in whole or in part because of market behavior or unexpected events. Changes in the value of a derivative (including one used for hedging) may not correlate perfectly with the underlying reference instrument. Derivative instruments traded in over-the-counter markets may be difficult to value, may be illiquid, and may be subject to wide swings in valuation caused by changes in the value of the underlying reference instrument. If a derivative’s counterparty is unable to honor its commitments, the value of Fund shares may decline and the Fund could experience delays in the return of collateral or other assets held by the counterparty. The loss on derivative transactions may substantially exceed the initial investment, particularly when there is no stated limit on the Fund’s use of derivatives. A derivative investment also involves the risks relating to the reference instrument underlying the investment.

U.S. Government Securities Risk. Although certain U.S. Government sponsored agencies (such as the Federal Home Loan Mortgage Corporation and the Federal National Mortgage Association) may be chartered or sponsored by acts of Congress, their securities are neither issued nor guaranteed by the U.S. Treasury. U.S. Treasury securities generally have a lower return than other obligations because of their higher credit quality and market liquidity.

Equity Securities Risk. The value of equity securities and related instruments may decline in response to adverse changes in the economy or the economic outlook; deterioration in investor sentiment; interest rate, currency, and commodity price fluctuations; adverse geopolitical, social or environmental developments; issuer and sector-specific considerations; unexpected trading activity among retail investors; or other factors. Market conditions may affect certain types of stocks to a greater extent than other types of stocks. If the stock market declines in value, the value of the Fund’s equity securities will also likely decline. Although prices can rebound, there is no assurance that values will return to previous levels.

Liquidity Risk. The Fund is exposed to liquidity risk when trading volume, lack of a market maker or trading partner, large position size, market

conditions, or legal restrictions impair its ability to sell particular investments or to sell them at advantageous market prices. Consequently, the Fund may have to accept a lower price to sell an investment or continue to hold it or keep the position open, sell other investments to raise cash or abandon an investment opportunity, any of which could have a negative effect on the Fund’s performance. These effects may be exacerbated during times of financial or political stress.

Market Discount Risk. As with any security, the market value of the common shares may increase or decrease from the amount initially paid for the common shares. The Fund’s common shares have traded both at a premium and at a discount relative to NAV. The shares of closed-end management investment companies frequently trade at a discount from their NAV. This is a risk separate and distinct from the risk that the Fund’s NAV may decrease.

Risks Associated with Active Management. The success of the Fund’s investment strategy depends on portfolio management’s successful application of analytical skills and investment judgment. Active management involves subjective decisions.

Recent Market Conditions. An outbreak of respiratory disease caused by a novel coronavirus was first detected in China in late 2019 and subsequently spread internationally. This coronavirus has resulted in closing borders, enhanced health screenings, changes to healthcare service preparation and delivery, quarantines, cancellations, disruptions to supply chains and customer activity, as well as general concern and uncertainty. The impact of this coronavirus has resulted in a substantial economic downturn, which may continue for an extended period of time. Health crises caused by outbreaks of disease, such as the coronavirus outbreak, may exacerbate other pre-existing political, social and economic risks and disrupt normal market conditions and operations. The impact of this outbreak has negatively affected the worldwide economy, as well as the economies of individual countries and industries, and could continue to affect the market in significant and unforeseen ways. Other epidemics and pandemics that may arise in the future may have similar effects. For example, a global pandemic or other widespread health crisis could cause substantial market volatility and exchange trading suspensions and closures. In addition, the increasing interconnectedness of markets around the world may result in many markets being affected by events or conditions in a single country or region or events affecting a single or small number of issuers. The coronavirus outbreak and public and private sector responses thereto have led to large portions of the populations of many countries working from home for indefinite periods of time, temporary or permanent layoffs, disruptions in supply chains, and lack of availability of certain goods. The impact of such responses could adversely affect the information technology and operational systems upon which the Fund and the Fund’s service providers rely, and could otherwise disrupt the ability of the employees of the Fund’s service providers to perform critical tasks relating to the Fund. Any such impact could adversely affect the Fund’s performance, or the performance of the securities in which the Fund invests and may lead to losses on your investment in the Fund.

Cybersecurity Risk. With the increased use of technologies by Fund service providers to conduct business, such as the Internet, the Fund is susceptible to operational, information security and related risks. In general, cyber incidents can result from deliberate attacks or unintentional events. Cybersecurity failures by or breaches of the Fund’s investment adviser or administrator and other service providers (including, but not limited to, the

See Endnotes and Additional Disclosures in this report.

7

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

The Fund’s Investment Objectives, Principal Strategies and Principal Risks⁹ — continued

custodian or transfer agent), and the issuers of securities in which the Fund invests, have the ability to cause disruptions and impact business operations potentially resulting in financial losses, interference with the Fund’s ability to calculate its net asset value, impediments to trading, the inability of Fund shareholders to transact business, violations of applicable privacy and other laws, regulatory fines, penalties, reputational damage, reimbursement or other compensation costs, or additional compliance costs.

General Fund Investing Risks. The Fund is not a complete investment program and there is no guarantee that the Fund will achieve its investment objective. It is possible to lose money by investing in the Fund. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Potential Conflicts of Interest

As a diversified global financial services firm, Morgan Stanley, the parent company of the investment adviser, engages in a broad spectrum of activities where Morgan Stanley’s interests or the interests of its clients may conflict with the interests of the Fund. Morgan Stanley advises clients and sponsors, manages or advises other investment funds and investment programs, accounts and businesses (collectively, together with any new or successor Morgan Stanley funds, programs, accounts or businesses, (other than funds, programs, accounts or businesses sponsored, managed, or advised by former direct or indirect subsidiaries of Eaton Vance Corp. (“Eaton Vance Investment Accounts”)), the “MS Investment Accounts,” and, together with the Eaton Vance Investment Accounts, the ‘‘Affiliated Investment Accounts’’) with a wide variety of investment objectives that in some instances may overlap or conflict with a Fund’s investment objectives and present conflicts of interest. There is no assurance that conflicts of interest will be resolved in favor of Fund shareholders and, in fact, they may not be. Conflicts of interest not described below may also exist.

Material Non-public Information. It is expected that confidential or material non-public information regarding an investment or potential investment opportunity may become available to the investment adviser. If such information becomes available, the investment adviser may be precluded (including by applicable law or internal policies or procedures) from pursuing an investment or disposition opportunity with respect to such investment or investment opportunity. Morgan Stanley has established certain information barriers and other policies to address the sharing of information between different businesses within Morgan Stanley.

Investments by Morgan Stanley and its Affiliated Investment Accounts. In serving in multiple capacities to Affiliated Investment Accounts, Morgan Stanley, including the investment adviser and its investment teams, may have obligations to other clients or investors in Affiliated Investment Accounts, the fulfillment of which may not be in the best interests of a Fund or its shareholders. A Fund’s investment objectives may overlap with the investment objectives of certain Affiliated Investment Accounts. As a result, the members of an investment team may face conflicts in the allocation of investment opportunities among a Fund and other investment funds, programs, accounts and businesses advised by or affiliated with the investment adviser. Certain Affiliated Investment Accounts may provide for higher management or incentive fees or greater expense reimbursements or overhead allocations, all of which may contribute to this conflict of interest and create an incentive for the investment adviser to favor such other accounts. To seek to reduce potential conflicts of interest and to attempt to

allocate investment opportunities in a fair and equitable manner, the investment adviser has implemented allocation policies and procedures. These policies and procedures are intended to give all clients of the investment adviser, including the Fund(s), fair access to investment opportunities, consistent with the requirements of organizational documents, investment strategies, applicable laws and regulations, and the fiduciary duties of the investment adviser.

Investments by Separate Investment Departments. The entities and individuals that provide investment-related services for the Fund and certain other Eaton Vance Investment Accounts (the “Eaton Vance Investment Department”) may be different from the entities and individuals that provide investment-related services to MS Investment Accounts (the “MS Investment Department” and, together with the Eaton Vance Investment Department, the “Investment Departments”). Although Morgan Stanley has implemented information barriers between the Investment Departments in accordance with internal policies and procedures, each Investment Department may engage in discussions and share information and resources with the other Investment Department on certain investment-related matters. A MS Investment Account could trade in advance of a Fund (and vice versa), might complete trades more quickly and efficiently than a Fund, and/or achieve different execution than a Fund on the same or similar investments made contemporaneously.

Morgan Stanley Trading and Principal Investing Activities. Notwithstanding anything to the contrary herein, Morgan Stanley will generally conduct its sales and trading businesses, publish research and analysis, and render investment advice without regard for a Fund’s holdings, although these activities could have an adverse impact on the value of one or more of the Fund’s investments, or could cause Morgan Stanley to have an interest in one or more portfolio investments that is different from, and potentially adverse to, that of a Fund.

Morgan Stanley’s Investment Banking and Other Commercial Activities. Morgan Stanley advises clients on a variety of mergers, acquisitions, restructuring, bankruptcy and financing transactions. Morgan Stanley may act as an advisor to clients, including other investment funds that may compete with a Fund and with respect to investments that a Fund may hold. Morgan Stanley may give advice and take action with respect to any of its clients or proprietary accounts that may differ from the advice given, or may involve an action of a different timing or nature than the action taken, by a Fund.

General Process for Potential Conflicts. All of the transactions described above involve the potential for conflicts of interest between the investment adviser, related persons of the investment adviser and/or their clients. The Investment Advisers Act of 1940, as amended (the “Advisers Act”), the Investment Company Act of 1940, as amended (the “1940 Act”), and the Employee Retirement Income Security Act, as amended (“ERISA”) impose certain requirements designed to decrease the possibility of conflicts of interest between an investment adviser and its clients. In some cases, transactions may be permitted subject to fulfillment of certain conditions. Certain other transactions may be prohibited. In addition, the investment adviser has instituted policies and procedures designed to prevent conflicts of interest from arising and, when they do arise, to ensure that it effects transactions for clients in a manner that is consistent with its fiduciary duty to its clients and in accordance with applicable law.

See Endnotes and Additional Disclosures in this report.

8

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Endnotes and Additional Disclosures

¹  The views expressed in this report are those of the portfolio manager(s) and are current only through the date stated at the top of this page. These views are subject to change at any time based upon market or other conditions, and Eaton Vance and the Fund(s) disclaim any responsibility to update such views. These views may not be relied upon as investment advice and, because investment decisions are based on many factors, may not be relied upon as an indication of trading intent on behalf of any Eaton Vance fund. This commentary may contain statements that are not historical facts, referred to as “forward-looking statements.” The Fund’s actual future results may differ significantly from those stated in any forward-looking statement, depending on factors such as changes in securities or financial markets or general economic conditions, the volume of sales and purchases of Fund shares, the continuation of investment advisory, administrative and service contracts, and other risks discussed from time to time in the Fund’s filings with the Securities and Exchange Commission.

²  S&P/LSTA Leveraged Loan Index is an unmanaged index of the institutional leveraged loan market. S&P/LSTA Leveraged Loan indices are a product of S&P Dow Jones Indices LLC (“S&P DJI”) and have been licensed for use. S&P^® is a registered trademark of S&P DJI; Dow Jones^® is a registered trademark of Dow Jones Trademark Holdings LLC (“Dow Jones”); LSTA is a trademark of Loan Syndications and Trading Association, Inc. S&P DJI, Dow Jones, their respective affiliates and their third party licensors do not sponsor, endorse, sell or promote the Fund, will not have any liability with respect thereto and do not have any liability for any errors, omissions, or interruptions of the S&P Dow Jones Indices. Unless otherwise stated, index returns do not reflect the effect of any applicable sales charges, commissions, expenses, taxes or leverage, as applicable. It is not possible to invest directly in an index.

³  Performance results reflect the effects of leverage. The Fund’s performance for certain periods reflects the effects of expense reductions. Absent these reductions, performance would have been lower. Included in the average annual total return at NAV for the five- and ten year periods is the impact of the tender and repurchase of a portion of the Fund’s APS at 92% and 95% of the Fund’s APS per share liquidation preference. Had these transactions not occurred, the total return at NAV would be lower for the Fund.

⁴  The shares of the Fund often trade at a discount or premium to their net asset value. The discount or premium may vary over time and may be higher or lower than what is quoted in this report. For up-to-date premium/discount information, please refer to https://funds.eatonvance.com/closed-end-fund-prices.php.

⁵  The Distribution Rate is based on the Fund’s last regular distribution per share in the period (annualized) divided by the Fund’s NAV or market price at the end of the period. The Fund’s distributions may be comprised of amounts characterized for federal income tax purposes as qualified and non-qualified ordinary dividends, capital gains and nondividend distributions, also known as return of capital. For additional information about nondividend distributions, please refer to Eaton Vance Closed-End Fund Distribution Notices (19a) posted on our website, eatonvance.com. The Fund will determine the federal income tax character of distributions paid to a shareholder after the end of the calendar year. This is reported on the IRS form 1099-DIV and provided to the shareholder shortly after each year-end. For

information about the tax character of distributions made in prior calendar years, please refer to Performance-Tax Character of Distributions on the Fund’s webpage available at eatonvance.com. The Fund’s distributions are determined by the investment adviser based on its current assessment of the Fund’s long-term return potential. Fund distributions may be affected by numerous factors including changes in Fund performance, the cost of financing for leverage, portfolio holdings, realized and projected returns, and other factors. As portfolio and market conditions change, the rate of distributions paid by the Fund could change.

⁶  Leverage represents the liquidation value of the Fund’s APS and borrowings outstanding as a percentage of Fund net assets applicable to common shares plus APS and borrowings outstanding. Use of leverage creates an opportunity for income, but creates risks including greater price volatility. The cost of leverage rises and falls with changes in short-term interest rates. The Fund may be required to maintain prescribed asset coverage for its leverage and may be required to reduce its leverage at an inopportune time.

⁷  Excludes cash and cash equivalents.

⁸  Credit ratings are categorized using S&P Global Ratings (“S&P”). Ratings, which are subject to change, apply to the creditworthiness of the issuers of the underlying securities and not to the Fund or its shares. Credit ratings measure the quality of a bond based on the issuer’s creditworthiness, with ratings ranging from AAA, being the highest, to D, being the lowest based on S&P’s measures. Ratings of BBB or higher by S&P are considered to be investment-grade quality. Credit ratings are based largely on the ratings agency’s analysis at the time of rating. The rating assigned to any particular security is not necessarily a reflection of the issuer’s current financial condition and does not necessarily reflect its assessment of the volatility of a security’s market value or of the liquidity of an investment in the security. Holdings designated as “Not Rated” (if any) are not rated by S&P.

⁹  The information contained herein is provided for informational purposes only and does not constitute a solicitation of an offer to buy or sell Fund shares. The Fund is subject to numerous risks, including investment risks. Shares of closed-end funds often trade at a discount from their NAV. The Fund is not a complete investment program and you may lose money investing in the Fund.

Fund profile subject to change due to active management.

9

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Portfolio of Investments

Asset-Backed Securities — 6.6%
Security	Principal Amount (000’s omitted)		Value
Allegany Park CLO, Ltd., Series 2019-1A, Class E, 6.907%, (3 mo. USD LIBOR + 6.78%), 1/20/33(1)(2)	$	700	$	702,030
Ares XXXIIR CLO, Ltd., Series 2014-32RA, Class D, 5.975%, (3 mo. USD LIBOR + 5.85%), 5/15/30(1)(2)		2,000		1,966,978
Ares XXXIV CLO, Ltd., Series 2015-2A, Class ER, 6.972%, (3 mo. USD LIBOR + 6.85%), 4/17/33(1)(2)		1,150		1,143,339
Benefit Street Partners CLO XIX, Ltd., Series 2019-19A, Class E, 7.144%, (3 mo. USD LIBOR + 7.02%), 1/15/33(1)(2)		750		748,601
Benefit Street Partners CLO XVIII, Ltd., Series 2019-18A, Class E, 7.024%, (3 mo. USD LIBOR + 6.90%), 10/15/32(1)(2)		1,000		1,000,318
BlueMountain CLO XXVI, Ltd., Series 2019-26A, Class ER, 7.255%, (3 mo. USD LIBOR + 7.13%), 10/20/34(1)(2)		1,500		1,493,550
Canyon Capital CLO, Ltd.:
Series 2019-2A, Class E, 7.274%, (3 mo. USD LIBOR + 7.15%), 10/15/32(1)(2)		400		400,839
Series 2019-2A, Class ER, (3 mo. USD LIBOR + 6.75%), 10/15/34(1)(3)		400		400,200
Carlyle Global Market Strategies CLO, Ltd.:
Series 2012-3A, Class DR2, 6.627%, (3 mo. USD LIBOR + 6.50%), 1/14/32(1)(2)		1,200		1,106,861
Series 2015-5A, Class DR, 6.832%, (3 mo. USD LIBOR + 6.70%), 1/20/32(1)(2)		500		479,042
Cedar Funding X CLO, Ltd., Series 2019-10A, Class ER, 6.728%, (3 mo. USD LIBOR + 6.50%), 10/20/32(1)(2)		1,000		1,000,475
Galaxy XV CLO, Ltd., Series 2013-15A, Class ER, 6.769%, (3 mo. USD LIBOR + 6.65%), 10/15/30(1)(2)		1,000		988,146
Galaxy XXI CLO, Ltd., Series 2015-21A, Class ER, 5.382%, (3 mo. USD LIBOR + 5.25%), 4/20/31(1)(2)		1,000		964,053
Galaxy XXV CLO, Ltd., Series 2018-25A, Class E, 6.074%, (3 mo. USD LIBOR + 5.95%), 10/25/31(1)(2)		250		244,703
Golub Capital Partners CLO 23M, Ltd., Series 2015-23A, Class ER, 5.882%, (3 mo. USD LIBOR + 5.75%), 1/20/31(1)(2)		1,200		1,099,061
Kayne CLO 5, Ltd., Series 2019-5A, Class E, 6.824%, (3 mo. USD LIBOR + 6.70%), 7/24/32(1)(2)		1,000		1,001,094
Kayne CLO 7, Ltd., Series 2020-7A, Class E, 6.622%, (3 mo. USD LIBOR + 6.50%), 4/17/33(1)(2)		1,150		1,151,609
Madison Park Funding XXXVI, Ltd., Series 2019-36A, Class E, 7.374%, (3 mo. USD LIBOR + 7.25%), 1/15/33(1)(2)		500		500,335

Security	Principal Amount (000’s omitted)		Value
Palmer Square CLO, Ltd.:
Series 2013-2A, Class DRR, 5.972%, (3 mo. USD LIBOR + 5.85%), 10/17/31(1)(2)	$	900	$	887,866
Series 2019-1A, Class D, 7.125%, (3 mo. USD LIBOR + 7.00%), 11/14/32(1)(2)		1,000		1,000,351
Regatta XIV Funding, Ltd., Series 2018-3A, Class E, 6.074%, (3 mo. USD LIBOR + 5.95%), 10/25/31(1)(2)		700		676,537
Regatta XVI Funding, Ltd., Series 2019-2A, Class E, 7.124%, (3 mo. USD LIBOR + 7.00%), 1/15/33(1)(2)		750		750,504
Southwick Park CLO, LLC, Series 2019-4A, Class E, 6.832%, (3 mo. USD LIBOR + 6.70%), 7/20/32(1)(2)		2,000		2,002,494
Vibrant CLO X, Ltd., Series 2018-10A, Class D, 6.322%, (3 mo. USD LIBOR + 6.19%), 10/20/31(1)(2)		775		726,112
Vibrant CLO XI, Ltd., Series 2019-11A, Class D, 6.902%, (3 mo. USD LIBOR + 6.77%), 7/20/32(1)(2)		1,000		972,827
Voya CLO, Ltd., Series 2013-1A, Class DR, 6.604%, (3 mo. USD LIBOR + 6.48%), 10/15/30(1)(2)		2,000		1,864,552
Wellfleet CLO, Ltd., Series 2020-1A, Class D, 7.364%, (3 mo. USD LIBOR + 7.24%), 4/15/33(1)(2)		1,150		1,152,041
Total Asset-Backed Securities (identified cost $26,622,011)			$	26,424,518
Closed-End Funds — 2.0%
Security	Shares		Value
BlackRock Floating Rate Income Strategies Fund, Inc.		99,936	$	1,350,135
Invesco Senior Income Trust		361,124		1,621,447
Nuveen Credit Strategies Income Fund		365,228		2,406,853
Nuveen Floating Rate Income Fund		148,079		1,516,329
Nuveen Floating Rate Income Opportunity Fund		103,281		1,035,908
Total Closed-End Funds (identified cost $8,822,714)			$	7,930,672
Common Stocks — 1.2%
Security	Shares		Value
Aerospace and Defense — 0.1%
IAP Global Services, LLC(4)(5)(6)		55	$	273,710
			$	273,710
Electronics / Electrical — 0.2%
Skillsoft Corp.(4)(5)(6)(7)		53,012	$	640,113
			$	640,113

10 See Notes to Financial Statements.

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Portfolio of Investments — continued

Security	Shares		Value
Oil and Gas — 0.3%
Nine Point Energy Holdings, Inc.(4)(5)(6)(7)		758	$	0
QuarterNorth Energy, Inc.(5)(6)		12,784		1,323,144
			$	1,323,144
Radio and Television — 0.3%
Clear Channel Outdoor Holdings, Inc.(5)(6)		86,335	$	250,372
Cumulus Media, Inc., Class A(5)(6)		38,163		473,984
iHeartMedia, Inc., Class A(5)(6)		36,714		711,517
			$	1,435,873
Retailers (Except Food and Drug) — 0.1%
Phillips Pet Holding Corp.(4)(5)(6)		556	$	215,572
			$	215,572
Telecommunications — 0.2%
GEE Acquisition Holdings Corp.(4)(5)(6)		45,136	$	972,230
			$	972,230
Total Common Stocks (identified cost $4,760,616)			$	4,860,642
Convertible Preferred Stocks — 0.0%
Security	Shares		Value
Oil and Gas — 0.0%
Nine Point Energy Holdings, Inc., Series A, 12.00%(4)(5)(6)(7)		14	$	0
Total Convertible Preferred Stocks (identified cost $14,000)			$	0
Corporate Bonds — 1.3%
Security	Principal Amount (000’s omitted)		Value
Business Equipment and Services — 0.4%
Prime Security Services Borrower, LLC/Prime Finance, Inc.:
5.25%, 4/15/24(1)	$	700	$	745,500
5.75%, 4/15/26(1)		700		749,630
			$	1,495,130

Security		Principal Amount (000’s omitted)		Value
Food Products — 0.3%
Del Monte Foods, Inc., 11.875%, 5/15/25(1)		$	1,000	$	1,123,100
				$	1,123,100
Radio and Television — 0.5%
Diamond Sports Group, LLC/Diamond Sports Finance Co., 5.375%, 8/15/26(1)		$	2,864	$	1,623,760
iHeartCommunications, Inc.:
6.375%, 5/1/26			208		216,196
8.375%, 5/1/27			376		401,265
				$	2,241,221
Telecommunications — 0.1%
Digicel International Finance, Ltd./Digicel International Holdings, Ltd., 8.75%, 5/25/24(1)		$	550	$	571,313
				$	571,313
Total Corporate Bonds (identified cost $5,872,442)				$	5,430,764
Senior Floating-Rate Loans — 142.0%(8)
Borrower/Description		Principal Amount* (000’s omitted)		Value
Aerospace and Defense — 2.8%
Aernnova Aerospace S.A.U.:
Term Loan, 3.00%, (3 mo. EURIBOR + 3.00%), 2/22/27	EUR		102	$	111,668
Term Loan, 3.00%, (3 mo. EURIBOR + 3.00%), 2/26/27	EUR		398		435,505
AI Convoy (Luxembourg) S.a.r.l.:
Term Loan, 3.50%, (6 mo. EURIBOR + 3.50%), 1/18/27	EUR		400		459,654
Term Loan, 4.50%, (USD LIBOR + 3.50%, Floor 1.00%), 1/17/27(9)			1,745		1,751,267
Dynasty Acquisition Co., Inc.:
Term Loan, 3.632%, (3 mo. USD LIBOR + 3.50%), 4/6/26			1,007		985,157
Term Loan, 3.632%, (3 mo. USD LIBOR + 3.50%), 4/6/26			1,872		1,831,760
IAP Worldwide Services, Inc.:
Revolving Loan, 0.75%, 7/18/23(10)			311		312,788
Term Loan - Second Lien, 8.00%, (3 mo. USD LIBOR + 6.50%, Floor 1.50%), 7/18/23(4)			399		326,097
KKR Apple Bidco, LLC, Term Loan, 3.50%, (1 mo. USD LIBOR + 3.00%, Floor 0.50%), 9/22/28			1,650		1,649,226

11 See Notes to Financial Statements.

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Portfolio of Investments — continued

Borrower/Description		Principal Amount* (000’s omitted)		Value
Aerospace and Defense (continued)
Spirit Aerosystems, Inc., Term Loan, 6.00%, (1 mo. USD LIBOR + 5.25%, Floor 0.75%), 1/15/25			422	$	424,449
WP CPP Holdings, LLC, Term Loan, 4.75%, (USD LIBOR + 3.75%, Floor 1.00%), 4/30/25(9)			3,022		2,960,598
				$	11,248,169
Air Transport — 2.8%
AAdvantage Loyalty IP, Ltd., Term Loan, 5.50%, (3 mo. USD LIBOR + 4.75%, Floor 0.75%), 4/20/28			3,025	$	3,151,403
Air Canada, Term Loan, 4.25%, (6 mo. USD LIBOR + 3.50%, Floor 0.75%), 8/11/28			2,000		2,023,334
Brown Group Holding, LLC, Term Loan, 3.25%, (3 mo. USD LIBOR + 2.75%, Floor 0.50%), 6/7/28			2,195		2,192,530
Mileage Plus Holdings, LLC, Term Loan, 6.25%, (3 mo. USD LIBOR + 5.25%, Floor 1.00%), 6/21/27			750		799,560
United Airlines, Inc., Term Loan, 4.50%, (3 mo. USD LIBOR + 3.75%, Floor 0.75%), 4/21/28			2,992		3,038,302
				$	11,205,129
Automotive — 7.0%
Adient US, LLC, Term Loan, 3.587%, (1 mo. USD LIBOR + 3.50%), 4/8/28			1,948	$	1,950,973
Autokiniton US Holdings, Inc., Term Loan, 5.00%, (3 mo. USD LIBOR + 4.50%, Floor 0.50%), 4/6/28			3,197		3,204,867
Belron Finance US, LLC, Term Loan, 3.25%, (3 mo. USD LIBOR + 2.75%, Floor 0.50%), 4/13/28			920		921,065
Bright Bidco B.V., Term Loan, 4.50%, (6 mo. USD LIBOR + 3.50%, Floor 1.00%), 6/30/24			1,461		1,090,731
Chassix, Inc., Term Loan, 6.50%, (3 mo. USD LIBOR + 5.50%, Floor 1.00%), 11/15/23			1,299		1,276,231
Clarios Global, L.P.:
Term Loan, 3.25%, (1 mo. EURIBOR + 3.25%), 4/30/26	EUR		1,000		1,146,969
Term Loan, 3.337%, (1 mo. USD LIBOR + 3.25%), 4/30/26			3,004		2,987,567
Dayco Products, LLC, Term Loan, 4.371%, (3 mo. USD LIBOR + 4.25%), 5/19/23			981		958,742
Garrett LX I S.a.r.l., Term Loan, 3.75%, (3 mo. USD LIBOR + 3.25%, Floor 0.50%), 4/30/28			725		722,281
Gates Global, LLC, Term Loan, 3.25%, (1 mo. USD LIBOR + 2.50%, Floor 0.75%), 3/31/27			2,569		2,566,658
Les Schwab Tire Centers, Term Loan, 4.00%, (3 mo. USD LIBOR + 3.25%, Floor 0.75%), 11/2/27			4,102		4,108,594
MajorDrive Holdings IV, LLC, Term Loan, 4.50%, (3 mo. USD LIBOR + 4.00%, Floor 0.50%), 5/12/28			623		624,477
Tenneco, Inc., Term Loan, 3.087%, (1 mo. USD LIBOR + 3.00%), 10/1/25			3,000		2,941,251

Borrower/Description		Principal Amount* (000’s omitted)		Value
Automotive (continued)
Thor Industries, Inc., Term Loan, 3.125%, (1 mo. USD LIBOR + 3.00%), 2/1/26			991	$	992,602
Truck Hero, Inc., Term Loan, 4.00%, (1 mo. USD LIBOR + 3.25%, Floor 0.75%), 1/31/28			1,746		1,740,487
Wheel Pros, LLC, Term Loan, 5.25%, (1 mo. USD LIBOR + 4.50%, Floor 0.75%), 5/11/28			950		947,560
				$	28,181,055
Beverage and Tobacco — 1.1%
Arterra Wines Canada, Inc., Term Loan, 4.25%, (3 mo. USD LIBOR + 3.50%, Floor 0.75%), 11/24/27			993	$	995,756
City Brewing Company, LLC, Term Loan, 4.25%, (3 mo. USD LIBOR + 3.50%, Floor 0.75%), 4/5/28			850		843,094
Triton Water Holdings, Inc., Term Loan, 4.00%, (3 mo. USD LIBOR + 3.50%, Floor 0.50%), 3/31/28			2,444		2,443,494
				$	4,282,344
Brokerage / Securities Dealers / Investment Houses — 0.9%
Advisor Group, Inc., Term Loan, 4.587%, (1 mo. USD LIBOR + 4.50%), 7/31/26			2,208	$	2,212,907
Hudson River Trading, LLC, Term Loan, 3.087%, (1 mo. USD LIBOR + 3.00%), 3/20/28			1,509		1,502,816
				$	3,715,723
Building and Development — 5.7%
Aegion Corporation, Term Loan, 5.50%, (3 mo. USD LIBOR + 4.75%, Floor 0.75%), 5/17/28			525	$	530,742
American Residential Services, LLC, Term Loan, 4.25%, (3 mo. USD LIBOR + 3.50%, Floor 0.75%), 10/15/27			571		571,758
Chamberlain Group, Inc., Term Loan, 11/3/28(11)			1,325		1,324,587
Cornerstone Building Brands, Inc., Term Loan, 3.75%, (1 mo. USD LIBOR + 3.25%, Floor 0.50%), 4/12/28			2,843		2,844,725
CP Atlas Buyer, Inc., Term Loan, 4.25%, (1 mo. USD LIBOR + 3.75%, Floor 0.50%), 11/23/27			1,394		1,387,675
MI Windows and Doors, LLC, Term Loan, 4.50%, (1 mo. USD LIBOR + 3.75%, Floor 0.75%), 12/18/27			2,466		2,473,607
Northstar Group Services, Inc., Term Loan, 6.50%, (1 mo. USD LIBOR + 5.50%, Floor 1.00%), 11/12/26			1,451		1,455,628
Park River Holdings, Inc., Term Loan, 4.00%, (3 mo. USD LIBOR + 3.25%, Floor 0.75%), 12/28/27			672		669,788
Patagonia Bidco Limited:
Term Loan, 3/5/29(11)	GBP		204		277,753
Term Loan, 3/5/29(11)	GBP		1,121		1,527,643
Quikrete Holdings, Inc., Term Loan, 1/31/27(11)			2,500		2,494,745

12 See Notes to Financial Statements.

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Portfolio of Investments — continued

Borrower/Description		Principal Amount* (000’s omitted)		Value
Building and Development (continued)
SRS Distribution, Inc., Term Loan, 4.25%, (6 mo. USD LIBOR + 3.75%, Floor 0.50%), 6/2/28			1,097	$	1,098,484
Standard Industries, Inc., Term Loan, 3.00%, (3 mo. USD LIBOR + 2.50%, Floor 0.50%), 9/22/28			1,475		1,475,307
Werner FinCo L.P., Term Loan, 5.00%, (3 mo. USD LIBOR + 4.00%, Floor 1.00%), 7/24/24			1,057		1,059,364
White Cap Buyer, LLC, Term Loan, 4.50%, (1 mo. USD LIBOR + 4.00%, Floor 0.50%), 10/19/27			2,153		2,160,877
WireCo WorldGroup, Inc.:
Term Loan, 6.00%, (6 mo. USD LIBOR + 5.00%, Floor 1.00%), 9/30/23			839		840,864
Term Loan - Second Lien, 9.158%, (6 mo. USD LIBOR + 9.00%), 9/30/24			1,001		995,921
				$	23,189,468
Business Equipment and Services — 16.3%
AlixPartners, LLP, Term Loan, 3.25%, (3 mo. EURIBOR + 3.25%), 2/4/28	EUR		498	$	574,235
Allied Universal Holdco, LLC, Term Loan, 4.25%, (3 mo. USD LIBOR + 3.75%, Floor 0.50%), 5/12/28			3,929		3,931,697
AppLovin Corporation:
Term Loan, 10/25/28(11)			1,275		1,273,406
Term Loan, 3.337%, (1 mo. USD LIBOR + 3.25%), 8/15/25			2,144		2,141,361
Belfor Holdings, Inc., Term Loan, 4.087%, (1 mo. USD LIBOR + 4.00%), 4/6/26			489		490,583
Blitz 20-487 GmbH, Term Loan, 3.50%, (3 mo. EURIBOR + 3.50%), 4/28/28	EUR		750		864,340
Bracket Intermediate Holding Corp., Term Loan, 4.377%, (3 mo. USD LIBOR + 4.25%), 9/5/25			849		849,546
Brand Energy & Infrastructure Services, Inc., Term Loan, 5.25%, (3 mo. USD LIBOR + 4.25%, Floor 1.00%), 6/21/24			503		499,012
Camelot U.S. Acquisition 1 Co., Term Loan, 4.00%, (1 mo. USD LIBOR + 3.00%, Floor 1.00%), 10/30/26			3,610		3,620,433
Ceridian HCM Holding, Inc., Term Loan, 2.574%, (1 week USD LIBOR + 2.50%), 4/30/25			891		882,200
Deerfield Dakota Holding, LLC, Term Loan, 4.75%, (1 mo. USD LIBOR + 3.75%, Floor 1.00%), 4/9/27			2,000		2,007,186
Employbridge, LLC, Term Loan, 5.50%, (3 mo. USD LIBOR + 4.75%, Floor 0.75%), 7/14/28			1,500		1,496,954
Endure Digital, Inc., Term Loan, 4.25%, (6 mo. USD LIBOR + 3.50%, Floor 0.75%), 2/10/28			3,067		3,017,469
Foundational Education Group, Inc., Term Loan, 4.75%, (6 mo. USD LIBOR + 4.25%, Floor 0.50%), 8/31/28			1,475		1,477,766
Garda World Security Corporation, Term Loan, 4.34%, (1 mo. USD LIBOR + 4.25%), 10/30/26			2,408		2,413,942

Borrower/Description		Principal Amount* (000’s omitted)		Value
Business Equipment and Services (continued)
Grab Holdings, Inc., Term Loan, 5.50%, (1 mo. USD LIBOR + 4.50%, Floor 1.00%), 1/29/26			2,313	$	2,335,544
Greeneden U.S. Holdings II, LLC, Term Loan, 4.75%, (1 mo. USD LIBOR + 4.00%, Floor 0.75%), 12/1/27			2,346		2,354,181
Hillman Group, Inc. (The):
Term Loan, 1.525%, (1 mo. USD LIBOR + 2.75%, Floor 0.50%), 7/14/28(10)			76		75,866
Term Loan, 3.25%, (1 mo. USD LIBOR + 2.75%, Floor 0.50%), 7/14/28			317		316,742
Intrado Corporation, Term Loan, 5.00%, (3 mo. USD LIBOR + 4.00%, Floor 1.00%), 10/10/24			925		910,302
IRI Holdings, Inc., Term Loan, 4.337%, (1 mo. USD LIBOR + 4.25%), 12/1/25			2,568		2,572,892
Ivanti Software, Inc.:
Term Loan, 4.75%, (3 mo. USD LIBOR + 4.00%, Floor 0.75%), 12/1/27			721		720,563
Term Loan, 5.75%, (3 mo. USD LIBOR + 4.75%, Floor 1.00%), 12/1/27			2,637		2,641,694
KAR Auction Services, Inc., Term Loan, 2.375%, (1 mo. USD LIBOR + 2.25%), 9/19/26			588		576,240
KUEHG Corp.:
Term Loan, 4.75%, (3 mo. USD LIBOR + 3.75%, Floor 1.00%), 2/21/25			2,894		2,873,632
Term Loan - Second Lien, 9.25%, (3 mo. USD LIBOR + 8.25%, Floor 1.00%), 8/22/25			400		402,750
LGC Group Holdings, Ltd., Term Loan, 3.00%, (1 mo. EURIBOR + 3.00%), 4/21/27	EUR		475		538,358
Loire Finco Luxembourg S.a.r.l., Term Loan, 3.337%, (1 mo. USD LIBOR + 3.25%), 4/21/27			321		315,341
Magnite, Inc., Term Loan, 5.75%, (USD LIBOR + 5.00%, Floor 0.75%), 4/28/28(9)			723		724,995
MedAssets Software Intermediate Holdings, Inc., Term Loan, 4.50%, (3 mo. USD LIBOR + 3.75%, Floor 0.75%), 1/28/28			474		474,760
Monitronics International, Inc., Term Loan, 7.75%, (1 mo. USD LIBOR + 6.50%, Floor 1.25%), 3/29/24			1,401		1,383,728
Nielsen Consumer, Inc.:
Term Loan, 4.00%, (1 mo. EURIBOR + 4.00%), 3/6/28	EUR		398		462,840
Term Loan, 4.087%, (1 mo. USD LIBOR + 4.00%), 3/6/28			746		748,816
Packaging Coordinators Midco, Inc., Term Loan, 4.25%, (3 mo. USD LIBOR + 3.50%, Floor 0.75%), 11/30/27			1,150		1,153,350
Pike Corporation, Term Loan, 3.09%, (1 mo. USD LIBOR + 3.00%), 1/21/28			455		455,536
Prime Security Services Borrower, LLC, Term Loan, 3.50%, (USD LIBOR + 2.75%, Floor 0.75%), 9/23/26(9)			2,029		2,028,576

13 See Notes to Financial Statements.

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Portfolio of Investments — continued

Borrower/Description		Principal Amount* (000’s omitted)		Value
Business Equipment and Services (continued)
Sabre GLBL, Inc.:
Term Loan, 2.087%, (1 mo. USD LIBOR + 2.00%), 2/22/24			915	$	906,893
Term Loan, 4.00%, (1 mo. USD LIBOR + 3.50%, Floor 0.50%), 12/17/27			961		960,229
Term Loan, 4.00%, (1 mo. USD LIBOR + 3.50%, Floor 0.50%), 12/17/27			1,532		1,530,663
SITEL Worldwide Corporation, Term Loan, 8/28/28(11)			2,325		2,331,684
Skopima Merger Sub, Inc., Term Loan, 4.50%, (1 mo. USD LIBOR + 4.00%, Floor 0.50%), 5/12/28			1,200		1,196,250
SMG US Midco 2, Inc., Term Loan, 2.617%, (USD LIBOR + 2.50%), 1/23/25(9)			217		213,122
Sotheby’s, Term Loan, 5.00%, (3 mo. USD LIBOR + 4.50%, Floor 0.50%), 1/15/27			412		413,469
Spin Holdco, Inc., Term Loan, 4.75%, (3 mo. USD LIBOR + 4.00%, Floor 0.75%), 3/4/28			4,229		4,246,663
Techem Verwaltungsgesellschaft 675 mbH, Term Loan, 2.375%, (6 mo. EURIBOR + 2.375%), 7/15/25	EUR		739		841,345
Tempo Acquisition, LLC, Term Loan, 3.75%, (1 mo. USD LIBOR + 3.25%, Floor 0.50%), 11/2/26			1,564		1,570,071
TK Elevator Topco GmbH, Term Loan, 7/29/27(11)	EUR		500		575,531
TPG VIII Elf Purchaser, LLC, Term Loan, 11/6/28(11)			350		349,891
West Corporation, Term Loan, 4.50%, (3 mo. USD LIBOR + 3.50%, Floor 1.00%), 10/10/24			281		275,703
Zephyr Bidco Limited, Term Loan, 4.866%, (1 mo. GBP LIBOR + 4.75%), 7/23/25	GBP		700		952,522
				$	65,970,872
Cable and Satellite Television — 3.6%
Altice France S.A.:
Term Loan, 3.811%, (3 mo. USD LIBOR + 3.69%), 1/31/26			2,222	$	2,203,264
Term Loan, 4.125%, (3 mo. USD LIBOR + 4.00%), 8/14/26			1,620		1,616,639
Numericable Group S.A., Term Loan, 3.00%, (3 mo. EURIBOR + 3.00%), 7/31/25	EUR		430		484,371
UPC Broadband Holding B.V.:
Term Loan, 2.34%, (1 mo. USD LIBOR + 2.25%), 4/30/28			825		816,750
Term Loan, 2.50%, (6 mo. EURIBOR + 2.50%), 4/30/29	EUR		725		825,528
UPC Financing Partnership, Term Loan, 3.09%, (1 mo. USD LIBOR + 3.00%), 1/31/29			3,000		2,990,625
Virgin Media Bristol, LLC, Term Loan, 3.34%, (1 mo. USD LIBOR + 3.25%), 1/31/29			5,675		5,680,323
				$	14,617,500

Borrower/Description		Principal Amount* (000’s omitted)		Value
Chemicals and Plastics — 5.9%
Aruba Investments, Inc.:
Term Loan, 4.00%, (6 mo. EURIBOR + 4.00%), 11/24/27	EUR		498	$	576,907
Term Loan, 4.75%, (6 mo. USD LIBOR + 4.00%, Floor 0.75%), 11/24/27			721		724,531
Atotech B.V., Term Loan, 2.75%, (3 mo. EURIBOR + 2.75%), 3/18/28	EUR		325		374,174
Charter NEX US, Inc., Term Loan, 4.50%, (1 mo. USD LIBOR + 3.75%, Floor 0.75%), 12/1/27			447		448,331
Chemours Company (The), Term Loan, 2.50%, (3 mo. EURIBOR + 2.00%, Floor 0.50%), 4/3/25	EUR		560		641,757
CPC Acquisition Corp., Term Loan, 4.50%, (3 mo. USD LIBOR + 3.75%, Floor 0.75%), 12/29/27			771		770,965
Ferro Corporation:
Term Loan, 2.382%, (3 mo. USD LIBOR + 2.25%), 2/14/24			140		139,622
Term Loan, 2.382%, (3 mo. USD LIBOR + 2.25%), 2/14/24			143		142,657
Term Loan, 2.382%, (3 mo. USD LIBOR + 2.25%), 2/14/24			183		182,721
Flint Group GmbH, Term Loan, 6.00%, (3 mo. USD LIBOR + 5.00%, Floor 1.00%), 5.25% cash, 0.75% PIK, 9/21/23			140		139,837
Flint Group US, LLC, Term Loan, 6.00%, (3 mo. USD LIBOR + 5.00%, Floor 1.00%), 5.25% cash, 0.75% PIK, 9/21/23			845		845,897
Gemini HDPE, LLC, Term Loan, 3.50%, (3 mo. USD LIBOR + 3.00%, Floor 0.50%), 12/31/27			725		726,397
Groupe Solmax, Inc., Term Loan, 5.50%, (USD LIBOR + 4.75%, Floor 0.75%), 5/29/28(9)			1,496		1,501,394
Hexion, Inc., Term Loan, 3.64%, (3 mo. USD LIBOR + 3.50%), 7/1/26			709		709,573
Illuminate Buyer, LLC, Term Loan, 3.587%, (1 mo. USD LIBOR + 3.50%), 6/30/27			1,732		1,730,127
INEOS Enterprises Holdings II Limited, Term Loan, 3.25%, (3 mo. EURIBOR + 3.25%), 8/31/26	EUR		175		202,442
INEOS Enterprises Holdings US Finco, LLC, Term Loan, 4.50%, (3 mo. USD LIBOR + 3.50%, Floor 1.00%), 8/28/26			201		202,036
INEOS Finance PLC, Term Loan, 2.50%, (1 mo. EURIBOR + 2.00%, Floor 0.50%), 4/1/24	EUR		4		4,428
INEOS Styrolution US Holding, LLC, Term Loan, 3.25%, (1 mo. USD LIBOR + 2.75%, Floor 0.50%), 1/29/26			1,995		1,997,494
Lonza Group AG, Term Loan, 4.75%, (6 mo. USD LIBOR + 4.00%, Floor 0.75%), 7/3/28			2,369		2,375,911
LSF11 Skyscraper Holdco S.a.r.l., Term Loan, 4.25%, (3 mo. USD LIBOR + 3.75%, Floor 0.50%), 9/29/27			622		624,017

14 See Notes to Financial Statements.

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Portfolio of Investments — continued

Borrower/Description		Principal Amount* (000’s omitted)		Value
Chemicals and Plastics (continued)
Momentive Performance Materials, Inc., Term Loan, 3.34%, (1 mo. USD LIBOR + 3.25%), 5/15/24			415	$	415,308
Orion Engineered Carbons GmbH, Term Loan, 2.75%, (3 mo. USD LIBOR + 2.25%, Floor 0.50%), 9/24/28			325		327,031
PMHC II, Inc., Term Loan, 4.50%, (12 mo. USD LIBOR + 3.50%, Floor 1.00%), 3/31/25			1,562		1,554,557
Pregis TopCo Corporation, Term Loan, 4.087%, (1 mo. USD LIBOR + 4.00%), 7/31/26			590		591,269
Pretium PKG Holdings, Inc.:
Term Loan, 4.50%, (6 mo. USD LIBOR + 4.00%, Floor 0.50%), 10/2/28			525		526,896
Term Loan - Second Lien, 7.25%, (6 mo. USD LIBOR + 6.75%, Floor 0.50%), 10/1/29			300		303,000
Rohm Holding GmbH, Term Loan, 4.904%, (6 mo. USD LIBOR + 4.75%), 7/31/26			1,466		1,470,202
Solenis Holdings, LLC, Term Loan, 4.00%, (1 mo. EURIBOR + 4.00%), 6/26/25	EUR		248		286,943
Starfruit Finco B.V., Term Loan, 3.00%, (3 mo. EURIBOR + 3.00%), 10/1/25	EUR		401		458,593
Venator Materials Corporation, Term Loan, 3.087%, (1 mo. USD LIBOR + 3.00%), 8/8/24			360		357,750
W.R. Grace & Co.-Conn., Term Loan, 4.25%, (3 mo. USD LIBOR + 3.75%, Floor 0.50%), 9/22/28			2,450		2,460,413
				$	23,813,180
Conglomerates — 0.0%(12)
Penn Engineering & Manufacturing Corp., Term Loan, 3.50%, (1 mo. USD LIBOR + 2.50%, Floor 1.00%), 6/27/24			166	$	166,671
				$	166,671
Containers and Glass Products — 2.7%
Berlin Packaging, LLC, Term Loan, 4.25%, (USD LIBOR + 3.75%, Floor 0.50%), 3/11/28(9)			725	$	726,662
BWAY Holding Company, Term Loan, 3.337%, (1 mo. USD LIBOR + 3.25%), 4/3/24			2,381		2,321,575
Flex Acquisition Company, Inc., Term Loan, 4.00%, (3 mo. USD LIBOR + 3.50%, Floor 0.50%), 2/23/28			3,242		3,237,044
Libbey Glass, Inc., Term Loan, 11.00%, (3 mo. USD LIBOR + 10.00%, Floor 1.00%), 11/13/25			804		835,449
Proampac PG Borrower, LLC, Term Loan, 4.50%, (3 mo. USD LIBOR + 3.75%, Floor 0.75%), 11/3/25			398		399,078
Reynolds Group Holdings, Inc., Term Loan, 4.00%, (1 mo. USD LIBOR + 3.50%, Floor 0.50%), 9/20/28			2,325		2,322,094
TricorBraun Holdings, Inc., Term Loan, 3.75%, (1 mo. USD LIBOR + 3.25%, Floor 0.50%), 3/3/28			624		620,898

Borrower/Description		Principal Amount* (000’s omitted)		Value
Containers and Glass Products (continued)
Trident TPI Holdings, Inc., Term Loan, 4.00%, (3 mo. USD LIBOR + 3.00%, Floor 1.00%), 10/17/24			530	$	530,088
				$	10,992,888
Cosmetics / Toiletries — 0.3%
Kronos Acquisition Holdings, Inc., Term Loan, 4.25%, (3 mo. USD LIBOR + 3.75%, Floor 0.50%), 12/22/26			1,290	$	1,256,649
				$	1,256,649
Drugs — 3.6%
Akorn, Inc., Term Loan, 8.50%, (3 mo. USD LIBOR + 7.50%, Floor 1.00%), 10/1/25			820	$	826,009
Alkermes, Inc., Term Loan, 3.00%, (3 mo. USD LIBOR + 2.50%, Floor 0.50%), 3/12/26			345		343,814
Amneal Pharmaceuticals, LLC, Term Loan, 3.625%, (1 mo. USD LIBOR + 3.50%), 5/4/25			1,663		1,651,795
Bausch Health Companies, Inc., Term Loan, 3.087%, (1 mo. USD LIBOR + 3.00%), 6/2/25			2,200		2,197,708
Cambrex Corporation, Term Loan, 4.25%, (1 mo. USD LIBOR + 3.50%, Floor 0.75%), 12/4/26			298		298,370
Curia Global, Inc., Term Loan, 4.50%, (USD LIBOR + 3.75%, Floor 0.75%), 8/30/26(9)			1,864		1,867,961
Jazz Financing Lux S.a.r.l., Term Loan, 4.00%, (1 mo. USD LIBOR + 3.50%, Floor 0.50%), 5/5/28			2,494		2,499,984
Mallinckrodt International Finance S.A.:
Term Loan, 6.00%, (6 mo. USD LIBOR + 5.25%, Floor 0.75%), 9/24/24			1,906		1,780,160
Term Loan, 6.25%, (1 mo. USD LIBOR + 5.50%, Floor 0.75%), 2/24/25			2,731		2,548,464
Nidda Healthcare Holding AG, Term Loan, 3.50%, (3 mo. EURIBOR + 3.50%), 8/21/26	EUR		575		658,053
				$	14,672,318
Ecological Services and Equipment — 1.0%
EnergySolutions, LLC, Term Loan, 4.75%, (3 mo. USD LIBOR + 3.75%, Floor 1.00%), 5/9/25			1,705	$	1,707,592
GFL Environmental, Inc., Term Loan, 3.50%, (3 mo. USD LIBOR + 3.00%, Floor 0.50%), 5/30/25			50		49,780
TruGreen Limited Partnership, Term Loan, 4.75%, (1 mo. USD LIBOR + 4.00%, Floor 0.75%), 11/2/27			2,067		2,072,086
US Ecology Holdings, Inc., Term Loan, 2.587%, (1 mo. USD LIBOR + 2.50%), 11/1/26			246		245,344
				$	4,074,802

15 See Notes to Financial Statements.

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Portfolio of Investments — continued

Borrower/Description		Principal Amount* (000’s omitted)		Value
Electronics / Electrical — 30.6%
Allegro Microsystems, Inc., Term Loan, 4.25%, (3 mo. USD LIBOR + 3.75%, Floor 0.50%), 9/30/27			44	$	44,231
Applied Systems, Inc., Term Loan - Second Lien, 6.25%, (3 mo. USD LIBOR + 5.50%, Floor 0.75%), 9/19/25			2,424		2,463,426
Aptean, Inc., Term Loan, 4/23/26(11)			2,000		1,998,500
AQA Acquisition Holding, Inc., Term Loan, 4.75%, (3 mo. USD LIBOR + 4.25%, Floor 0.50%), 3/3/28			898		901,117
Astra Acquisition Corp.:
Term Loan, 10/25/28(11)			1,550		1,513,187
Term Loan - Second Lien, 10/22/29(11)			1,425		1,410,750
Banff Merger Sub, Inc.:
Term Loan, 3.882%, (3 mo. USD LIBOR + 3.75%), 10/2/25			3,466		3,447,778
Term Loan, 4.00%, (3 mo. EURIBOR + 4.00%), 10/2/25	EUR		268		310,379
Term Loan - Second Lien, 6.00%, (3 mo. USD LIBOR + 5.50%, Floor 0.50%), 2/27/26			750		761,094
Barracuda Networks, Inc., Term Loan - Second Lien, 7.50%, (3 mo. USD LIBOR + 6.75%, Floor 0.75%), 10/30/28			425		430,490
Buzz Merger Sub, Ltd., Term Loan, 2.837%, (1 mo. USD LIBOR + 2.75%), 1/29/27			542		538,703
Celestica, Inc., Term Loan, 2.588%, (1 mo. USD LIBOR + 2.50%), 6/27/25			189		188,264
CentralSquare Technologies, LLC, Term Loan, 3.882%, (3 mo. USD LIBOR + 3.75%), 8/29/25			802		750,965
Cloudera, Inc.:
Term Loan, 4.25%, (1 mo. USD LIBOR + 3.75%, Floor 0.50%), 10/8/28			2,350		2,349,267
Term Loan - Second Lien, 6.50%, (1 mo. USD LIBOR + 6.00%, Floor 0.50%), 10/8/29			650		652,438
Cohu, Inc., Term Loan, 3.172%, (6 mo. USD LIBOR + 3.00%), 10/1/25			247		246,788
Concorde Midco, Ltd., Term Loan, 4.00%, (6 mo. EURIBOR + 4.00%), 3/1/28	EUR		525		607,753
ConnectWise, LLC, Term Loan, 4.00%, (3 mo. USD LIBOR + 3.50%, Floor 0.50%), 9/29/28			2,000		2,000,178
Constant Contact, Inc., Term Loan, 4.75%, (6 mo. USD LIBOR + 4.00%, Floor 0.75%), 2/10/28			1,871		1,870,721
Cornerstone OnDemand, Inc., Term Loan, 4.25%, (6 mo. USD LIBOR + 3.75%, Floor 0.50%), 10/16/28			1,150		1,148,562
CPI International, Inc., Term Loan, 4.50%, (1 mo. USD LIBOR + 3.50%, Floor 1.00%), 7/26/24			592		592,787
Creation Technologies, Inc., Term Loan, 6.00%, (3 mo. USD LIBOR + 5.50%, Floor 0.50%), 10/5/28			850		846,813

Borrower/Description		Principal Amount* (000’s omitted)		Value
Electronics / Electrical (continued)
Delta TopCo, Inc.:
Term Loan, 4.50%, (6 mo. USD LIBOR + 3.75%, Floor 0.75%), 12/1/27			1,434	$	1,433,599
Term Loan - Second Lien, 8.00%, (6 mo. USD LIBOR + 7.25%, Floor 0.75%), 12/1/28			2,025		2,050,312
DG Investment Intermediate Holdings 2, Inc.:
Term Loan, 4.442%, (1 mo. USD LIBOR + 3.75%, Floor 0.75%), 3/31/28(10)			173		173,430
Term Loan, 4.50%, (1 mo. USD LIBOR + 3.75%, Floor 0.75%), 3/31/28			825		827,969
E2open, LLC, Term Loan, 3.75%, (3 mo. USD LIBOR + 3.25%, Floor 0.50%), 2/4/28			873		874,449
ECI Macola Max Holding, LLC, Term Loan, 4.50%, (3 mo. USD LIBOR + 3.75%, Floor 0.75%), 11/9/27			1,291		1,294,673
Electro Rent Corporation, Term Loan, 6.00%, (3 mo. USD LIBOR + 5.00%, Floor 1.00%), 1/31/24			1,583		1,590,007
Epicor Software Corporation:
Term Loan, 4.00%, (1 mo. USD LIBOR + 3.25%, Floor 0.75%), 7/30/27			2,273		2,274,285
Term Loan - Second Lien, 8.75%, (1 mo. USD LIBOR + 7.75%, Floor 1.00%), 7/31/28			850		874,438
EXC Holdings III Corp., Term Loan, 4.50%, (3 mo. USD LIBOR + 3.50%, Floor 1.00%), 12/2/24			457		458,807
Finastra USA, Inc., Term Loan, 4.50%, (6 mo. USD LIBOR + 3.50%, Floor 1.00%), 6/13/24			4,698		4,679,507
Gainwell Acquisition Corp., Term Loan, 4.75%, (3 mo. USD LIBOR + 4.00%, Floor 0.75%), 10/1/27			3,893		3,909,051
Hyland Software, Inc., Term Loan - Second Lien, 7.00%, (1 mo. USD LIBOR + 6.25%, Floor 0.75%), 7/7/25			3,630		3,675,375
Imperva, Inc., Term Loan, 5.00%, (3 mo. USD LIBOR + 4.00%, Floor 1.00%), 1/12/26			2,339		2,344,054
Imprivata, Inc., Term Loan, 4.00%, (3 mo. USD LIBOR + 3.50%, Floor 0.50%), 12/1/27			2,172		2,176,128
Informatica, LLC, Term Loan, 10/27/28(11)			2,275		2,272,156
LogMeIn, Inc., Term Loan, 4.834%, (1 mo. USD LIBOR + 4.75%), 8/31/27			1,861		1,860,502
MA FinanceCo., LLC:
Term Loan, 2.837%, (1 mo. USD LIBOR + 2.75%), 6/21/24			448		444,408
Term Loan, 4.50%, (3 mo. EURIBOR + 4.50%), 6/5/25	EUR		683		797,106
Term Loan, 5.25%, (3 mo. USD LIBOR + 4.25%, Floor 1.00%), 6/5/25			1,706		1,721,980
Magenta Buyer, LLC:
Term Loan, 5.75%, (3 mo. USD LIBOR + 5.00%, Floor 0.75%), 7/27/28			4,275		4,274,555
Term Loan - Second Lien, 9.00%, (3 mo. USD LIBOR + 8.25%, Floor 0.75%), 7/27/29			1,150		1,143,292

16 See Notes to Financial Statements.

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Portfolio of Investments — continued

Borrower/Description		Principal Amount* (000’s omitted)		Value
Electronics / Electrical (continued)
Marcel LUX IV S.a.r.l., Term Loan, 4.75%, (1 mo. USD LIBOR + 4.00%, Floor 0.75%), 12/31/27			100	$	100,739
Mavenir Systems, Inc., Term Loan, 5.25%, (3 mo. USD LIBOR + 4.75%, Floor 0.50%), 8/13/28			325		326,761
Mirion Technologies, Inc., Term Loan, 10/20/28(11)			600		599,250
MKS Instruments, Inc., Term Loan, 10/21/28(11)	EUR		350		406,117
Panther Commercial Holdings L.P., Term Loan, 5.00%, (3 mo. USD LIBOR + 4.50%, Floor 0.50%), 1/7/28			898		902,305
PointClickCare Technologies, Inc., Term Loan, 3.75%, (3 mo. USD LIBOR + 3.00%, Floor 0.75%), 12/29/27			622		621,875
Polaris Newco, LLC, Term Loan, 4.50%, (6 mo. USD LIBOR + 4.00%, Floor 0.50%), 6/2/28			2,675		2,684,528
Poseidon Intermediate, LLC, Term Loan, 4.087%, (1 mo. USD LIBOR + 4.00%), 8/18/25			199		199,868
Proofpoint, Inc., Term Loan, 3.75%, (3 mo. USD LIBOR + 3.25%, Floor 0.50%), 8/31/28			3,000		2,991,375
Rackspace Technology Global, Inc., Term Loan, 2/15/28(11)			2,000		1,988,750
RealPage, Inc., Term Loan, 3.75%, (1 mo. USD LIBOR + 3.25%, Floor 0.50%), 4/24/28			4,400		4,394,958
Recorded Books, Inc., Term Loan, 4.084%, (1 mo. USD LIBOR + 4.00%), 8/29/25			2,280		2,283,664
Redstone Holdco 2 L.P., Term Loan, 5.50%, (3 mo. USD LIBOR + 4.75%, Floor 0.75%), 4/27/28			2,250		2,181,094
Renaissance Holding Corp., Term Loan - Second Lien, 7.087%, (1 mo. USD LIBOR + 7.00%), 5/29/26			175		176,039
Riverbed Technology, Inc., Term Loan - Second Lien, 12.00%, (3 mo. USD LIBOR + 11.00%, Floor 1.00%), 7.50% cash, 4.50% PIK, 12/31/26			23		7,534
Seattle Spinco, Inc., Term Loan, 2.837%, (1 mo. USD LIBOR + 2.75%), 6/21/24			3,022		3,001,195
Sophia L.P., Term Loan, 4.00%, (3 mo. USD LIBOR + 3.50%, Floor 0.50%), 10/7/27			4,212		4,222,795
Sovos Compliance, LLC:
Term Loan, 2.25%, 8/11/28(10)			85		85,287
Term Loan, 5.00%, (3 mo. USD LIBOR + 4.50%, Floor 0.50%), 8/11/28			490		493,871
SurveyMonkey, Inc., Term Loan, 3.83%, (1 week USD LIBOR + 3.75%), 10/10/25			1,014		1,011,749
Symplr Software, Inc., Term Loan, 5.25%, (3 mo. USD LIBOR + 4.50%, Floor 0.75%), 12/22/27			796		799,781
Tibco Software, Inc.:
Term Loan, 6/30/26(11)			675		665,508
Term Loan, 3.84%, (1 mo. USD LIBOR + 3.75%), 6/30/26			2,469		2,428,416
Term Loan - Second Lien, 7.34%, (1 mo. USD LIBOR + 7.25%), 3/3/28			1,250		1,256,445

Borrower/Description		Principal Amount* (000’s omitted)		Value
Electronics / Electrical (continued)
TTM Technologies, Inc., Term Loan, 2.582%, (1 mo. USD LIBOR + 2.50%), 9/28/24			139	$	139,110
Turing Midco, LLC, Term Loan, 3.50%, (1 mo. USD LIBOR + 3.00%, Floor 0.50%), 3/23/28			304		304,374
Uber Technologies, Inc.:
Term Loan, 3.587%, (1 mo. USD LIBOR + 3.50%), 4/4/25			4,965		4,971,590
Term Loan, 3.587%, (1 mo. USD LIBOR + 3.50%), 2/25/27			5		5,033
Ultimate Software Group, Inc. (The):
Term Loan, 3.837%, (1 mo. USD LIBOR + 3.75%), 5/4/26			1,566		1,570,703
Term Loan, 4.00%, (3 mo. USD LIBOR + 3.25%, Floor 0.75%), 5/4/26			4,233		4,246,365
Term Loan - Second Lien, 7.50%, (3 mo. USD LIBOR + 6.75%, Floor 0.75%), 5/3/27			250		255,208
Ultra Clean Holdings, Inc., Term Loan, 3.837%, (1 mo. USD LIBOR + 3.75%), 8/27/25			1,178		1,182,292
Valkyr Purchaser, LLC, Term Loan, 4.75%, (3 mo. USD LIBOR + 4.00%, Floor 0.75%), 10/29/27			746		748,116
Verifone Systems, Inc., Term Loan, 4.129%, (3 mo. USD LIBOR + 4.00%), 8/20/25			1,117		1,095,393
Verisure Holding AB, Term Loan, 3.25%, (3 mo. EURIBOR + 3.25%), 3/27/28	EUR		775		890,453
Veritas US, Inc.:
Term Loan, 5.75%, (3 mo. EURIBOR + 4.75%, Floor 1.00%), 9/1/25	EUR		322		374,420
Term Loan, 6.00%, (3 mo. USD LIBOR + 5.00%, Floor 1.00%), 9/1/25			2,500		2,512,296
Vision Solutions, Inc., Term Loan, 4.75%, (3 mo. USD LIBOR + 4.00%, Floor 0.75%), 4/24/28			2,400		2,401,500
VS Buyer, LLC, Term Loan, 3.087%, (1 mo. USD LIBOR + 3.00%), 2/28/27			1,108		1,106,186
Zebra Buyer, LLC, Term Loan, 4/21/28(11)			1,525		1,530,560
				$	123,387,777
Equipment Leasing — 0.5%
Boels Topholding B.V., Term Loan, 3.25%, (3 mo. EURIBOR + 3.25%), 2/6/27	EUR		575	$	663,315
Fly Funding II S.a.r.l., Term Loan, 7.00%, (3 mo. USD LIBOR + 6.00%, Floor 1.00%), 10/8/25			1,164		1,168,114
				$	1,831,429
Farming / Agriculture — 0.1%
Alltech, Inc., Term Loan, 10/13/28(11)			400	$	401,000
				$	401,000

17 See Notes to Financial Statements.

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Portfolio of Investments — continued

Borrower/Description		Principal Amount* (000’s omitted)		Value
Financial Intermediaries — 4.2%
Aretec Group, Inc., Term Loan, 4.337%, (1 mo. USD LIBOR + 4.25%), 10/1/25			3,290	$	3,289,901
CoreLogic, Inc., Term Loan, 4.00%, (1 mo. USD LIBOR + 3.50%, Floor 0.50%), 6/2/28			2,788		2,790,984
Edelman Financial Center, LLC, Term Loan, 4.25%, (1 mo. USD LIBOR + 3.50%, Floor 0.75%), 4/7/28			2,496		2,499,198
EIG Management Company, LLC, Term Loan, 4.50%, (1 mo. USD LIBOR + 3.75%, Floor 0.75%), 2/22/25			241		241,250
Focus Financial Partners, LLC:
Term Loan, 2.50%, 6/24/28(10)			563		560,801
Term Loan, 3.00%, (1 mo. USD LIBOR + 2.50%, Floor 0.50%), 7/1/28			2,431		2,424,061
GreenSky Holdings, LLC:
Term Loan, 3.375%, (1 mo. USD LIBOR + 3.25%), 3/31/25			1,327		1,323,558
Term Loan, 5.50%, (1 mo. USD LIBOR + 4.50%, Floor 1.00%), 3/29/25			469		469,062
Guggenheim Partners, LLC, Term Loan, 3.50%, (1 mo. USD LIBOR + 2.75%, Floor 0.75%), 7/21/23			985		986,346
Mariner Wealth Advisors, LLC:
Term Loan, 1.625%, 8/18/28(10)			178		177,680
Term Loan, 3.75%, (3 mo. USD LIBOR + 3.25%, Floor 0.50%), 8/18/28			1,247		1,243,758
Victory Capital Holdings, Inc., Term Loan, 2.377%, (3 mo. USD LIBOR + 2.25%), 7/1/26			857		854,456
				$	16,861,055
Food Products — 0.9%
8th Avenue Food & Provisions, Inc., Term Loan, 5.50%, (1 mo. USD LIBOR + 4.75%, Floor 0.75%), 10/1/25			500	$	498,750
Badger Buyer Corp., Term Loan, 4.50%, (1 mo. USD LIBOR + 3.50%, Floor 1.00%), 9/30/24			336		329,490
HLF Financing S.a.r.l., Term Loan, 2.587%, (1 mo. USD LIBOR + 2.50%), 8/18/25			642		639,692
Monogram Food Solutions, LLC, Term Loan, 4.50%, (1 mo. USD LIBOR + 4.00%, Floor 0.50%), 8/28/28			450		451,406
Shearer’s Foods, Inc., Term Loan, 4.25%, (3 mo. USD LIBOR + 3.50%, Floor 0.75%), 9/23/27			396		395,980
Simply Good Foods USA, Inc., Term Loan, 4.75%, (1 mo. USD LIBOR + 3.75%, Floor 1.00%), 7/7/24			261		263,005
United Petfood Group B.V., Term Loan, 3.25%, (3 mo. EURIBOR + 3.25%), 4/23/28	EUR		700		804,395
UTZ Quality Foods, LLC, Term Loan, 3.087%, (1 mo. USD LIBOR + 3.00%), 1/20/28			149		148,824
				$	3,531,542

Borrower/Description		Principal Amount* (000’s omitted)		Value
Food Service — 1.3%
Ai Aqua Merger Sub, Inc.:
Term Loan, 7/31/28(11)			244	$	245,545
Term Loan, 7/31/28(11)			1,956		1,964,356
IRB Holding Corp., Term Loan, 4.25%, (3 mo. USD LIBOR + 3.25%, Floor 1.00%), 12/15/27			2,432		2,434,917
Sovos Brands Intermediate, Inc., Term Loan, 4.50%, (3 mo. USD LIBOR + 3.75%, Floor 0.75%), 6/8/28			560		561,300
				$	5,206,118
Food / Drug Retailers — 0.2%
L1R HB Finance Limited:
Term Loan, 4.25%, (3 mo. EURIBOR + 4.25%), 8/9/24	EUR		400	$	435,673
Term Loan, 5.326%, (3 mo. GBP LIBOR + 5.25%), 9/2/24	GBP		400		510,078
				$	945,751
Forest Products — 0.3%
Journey Personal Care Corp., Term Loan, 5.00%, (3 mo. USD LIBOR + 4.25%, Floor 0.75%), 3/1/28			1,172	$	1,169,132
				$	1,169,132
Health Care — 12.3%
Accelerated Health Systems, LLC, Term Loan, 3.588%, (1 mo. USD LIBOR + 3.50%), 10/31/25			511	$	508,648
AEA International Holdings (Lux) S.a.r.l., Term Loan, 4.25%, (3 mo. USD LIBOR + 3.75%, Floor 0.50%), 9/7/28			875		878,281
athenahealth, Inc., Term Loan, 4.377%, (3 mo. USD LIBOR + 4.25%), 2/11/26			3,877		3,893,816
Bayou Intermediate II, LLC, Term Loan, 5.25%, (3 mo. USD LIBOR + 4.50%, Floor 0.75%), 8/2/28			800		803,000
Biogroup-LCD, Term Loan, 3.50%, (6 mo. EURIBOR + 3.50%), 1/28/28	EUR		225		259,095
BW NHHC Holdco, Inc., Term Loan, 5.125%, (3 mo. USD LIBOR + 5.00%), 5/15/25			2,168		1,922,403
Cano Health, LLC, Term Loan, 5.25%, (6 mo. USD LIBOR + 4.50%, Floor 0.75%), 11/19/27			1,499		1,501,199
CCRR Parent, Inc., Term Loan, 4.50%, (3 mo. USD LIBOR + 3.75%, Floor 0.75%), 3/6/28			498		500,143
Cerba Healthcare S.A.S., Term Loan, 5/24/28(11)	EUR		450		520,230
Certara L.P., Term Loan, 3.587%, (1 mo. USD LIBOR + 3.50%), 8/15/26			960		960,280
CHG Healthcare Services, Inc., Term Loan, 4.00%, (3 mo. USD LIBOR + 3.50%, Floor 0.50%), 9/29/28			925		926,477
CryoLife, Inc., Term Loan, 4.50%, (3 mo. USD LIBOR + 3.50%, Floor 1.00%), 6/1/27			481		482,854

18 See Notes to Financial Statements.

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Portfolio of Investments — continued

Borrower/Description		Principal Amount* (000’s omitted)		Value
Health Care (continued)
Electron BidCo, Inc., Term Loan, 11/1/28(11)			675	$	675,084
Envision Healthcare Corporation, Term Loan, 3.837%, (1 mo. USD LIBOR + 3.75%), 10/10/25			2,733		2,266,668
eResearchTechnology, Inc., Term Loan, 5.50%, (1 mo. USD LIBOR + 4.50%, Floor 1.00%), 2/4/27			323		325,442
GHX Ultimate Parent Corporation, Term Loan, 4.25%, (3 mo. USD LIBOR + 3.25%, Floor 1.00%), 6/28/24			864		865,844
Hanger, Inc., Term Loan, 3.587%, (1 mo. USD LIBOR + 3.50%), 3/6/25			1,013		1,013,725
IVC Acquisition Ltd., Term Loan, 2/13/26(11)	EUR		1,325		1,533,423
MDVIP, Inc., Term Loan, 4.25%, (3 mo. USD LIBOR + 3.75%, Floor 0.50%), 10/16/28			250		250,703
Medical Solutions, LLC:
Term Loan, 10/5/28(11)			200		200,406
Term Loan, 10/7/28(11)			1,050		1,052,133
Term Loan, 5.50%, (1 mo. USD LIBOR + 4.50%, Floor 1.00%), 6/14/24			1,506		1,508,940
Midwest Physician Administrative Services, LLC, Term Loan, 3.75%, (3 mo. USD LIBOR + 3.25%, Floor 0.75%), 3/12/28			522		520,620
National Mentor Holdings, Inc.:
Term Loan, 3.75%, 3/2/28(10)			89		88,224
Term Loan, 4.50%, (3 mo. USD LIBOR + 3.75%, Floor 0.75%), 3/2/28			60		59,854
Term Loan, 4.50%, (USD LIBOR + 3.75%, Floor 0.75%), 3/2/28(9)			1,906		1,895,924
Navicure, Inc., Term Loan, 4.087%, (1 mo. USD LIBOR + 4.00%), 10/22/26			1,416		1,419,504
Option Care Health, Inc., Term Loan, 10/27/28(11)			350		350,000
Ortho-Clinical Diagnostics S.A., Term Loan, 3.50%, (3 mo. EURIBOR + 3.50%), 6/30/25	EUR		365		423,109
Pacific Dental Services, LLC, Term Loan, 4.00%, (1 mo. USD LIBOR + 3.25%, Floor 0.75%), 5/5/28			549		551,025
PetVet Care Centers, LLC, Term Loan, 4.25%, (1 mo. USD LIBOR + 3.50%, Floor 0.75%), 2/14/25			174		173,888
Phoenix Guarantor, Inc.:
Term Loan, 3.338%, (1 mo. USD LIBOR + 3.25%), 3/5/26			2,992		2,975,554
Term Loan, 3.586%, (1 mo. USD LIBOR + 3.50%), 3/5/26			1,446		1,438,381
Project Ruby Ultimate Parent Corp., Term Loan, 4.00%, (1 mo. USD LIBOR + 3.25%, Floor 0.75%), 3/3/28			1,119		1,119,550
Radiology Partners, Inc., Term Loan, 4.336%, (USD LIBOR + 4.25%), 7/9/25(9)			2,463		2,463,581
Radnet Management, Inc., Term Loan, 4/21/28(11)			2,500		2,498,885
Sotera Health Holdings, LLC, Term Loan, 3.25%, (3 mo. USD LIBOR + 2.75%, Floor 0.50%), 12/11/26			625		623,437

Borrower/Description		Principal Amount* (000’s omitted)		Value
Health Care (continued)
Sound Inpatient Physicians, Term Loan, 2.837%, (1 mo. USD LIBOR + 2.75%), 6/27/25			435	$	434,649
Sunshine Luxembourg VII S.a.r.l., Term Loan, 4.50%, (3 mo. USD LIBOR + 3.75%, Floor 0.75%), 10/1/26			1,144		1,149,027
Surgery Center Holdings, Inc., Term Loan, 4.50%, (1 mo. USD LIBOR + 3.75%, Floor 0.75%), 8/31/26			2,469		2,477,369
Synlab Bondco PLC, Term Loan, 2.50%, (6 mo. EURIBOR + 2.50%), 7/1/27	EUR		300		345,125
Team Health Holdings, Inc., Term Loan, 3.75%, (1 mo. USD LIBOR + 2.75%, Floor 1.00%), 2/6/24			1,830		1,747,408
U.S. Anesthesia Partners, Inc., Term Loan, 4.75%, (6 mo. USD LIBOR + 4.25%, Floor 0.50%), 10/1/28			1,725		1,726,941
US Radiology Specialists, Inc., Term Loan, 6.25%, (3 mo. USD LIBOR + 5.50%, Floor 0.75%), 12/10/27			819		822,834
Verscend Holding Corp., Term Loan, 4.087%, (1 mo. USD LIBOR + 4.00%), 8/27/25			1,468		1,472,707
				$	49,626,390
Home Furnishings — 2.1%
ACProducts, Inc., Term Loan, 4.75%, (3 mo. USD LIBOR + 4.25%, Floor 0.50%), 5/17/28			1,945	$	1,941,612
Conair Holdings, LLC, Term Loan, 4.25%, (3 mo. USD LIBOR + 3.75%, Floor 0.50%), 5/17/28			2,200		2,203,093
Mattress Firm, Inc., Term Loan, 5.00%, (3 mo. USD LIBOR + 4.25%, Floor 0.75%), 9/25/28			1,050		1,046,882
Serta Simmons Bedding, LLC:
Term Loan, 8.50%, (1 mo. USD LIBOR + 7.50%, Floor 1.00%), 8/10/23			1,061		1,076,484
Term Loan - Second Lien, 8.50%, (1 mo. USD LIBOR + 7.50%, Floor 1.00%), 8/10/23			2,450		2,316,713
				$	8,584,784
Industrial Equipment — 6.9%
Albion Financing 3 S.a.r.l., Term Loan, 8/17/26(11)			1,350	$	1,343,250
Alliance Laundry Systems, LLC, Term Loan, 4.25%, (3 mo. USD LIBOR + 3.50%, Floor 0.75%), 10/8/27			2,127		2,134,108
Altra Industrial Motion Corp., Term Loan, 2.087%, (1 mo. USD LIBOR + 2.00%), 10/1/25			476		474,334
American Trailer World Corp., Term Loan, 4.50%, (1 mo. USD LIBOR + 3.75%, Floor 0.75%), 3/3/28			599		596,480
Apex Tool Group, LLC, Term Loan, 6.50%, (1 mo. USD LIBOR + 5.25%, Floor 1.25%), 8/1/24			2,667		2,673,086

19 See Notes to Financial Statements.

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Portfolio of Investments — continued

Borrower/Description		Principal Amount* (000’s omitted)		Value
Industrial Equipment (continued)
CPM Holdings, Inc., Term Loan, 3.582%, (1 mo. USD LIBOR + 3.50%), 11/17/25			1,995	$	1,988,387
Delachaux Group S.A.:
Term Loan, 3.75%, (3 mo. EURIBOR + 3.75%), 4/16/26	EUR		345		398,941
Term Loan, 4.629%, (3 mo. USD LIBOR + 4.50%), 4/16/26			441		440,173
DexKo Global, Inc.:
Term Loan, 0.00%, 10/4/28(10)	EUR		74		85,715
Term Loan, 0.00%, 10/4/28(10)			112		112,140
Term Loan, 4.00%, (3 mo. EURIBOR + 4.00%), 9/22/28	EUR		240		277,025
Term Loan, 4.00%, (3 mo. EURIBOR + 4.00%), 9/22/28	EUR		461		532,712
Term Loan, 4.25%, (3 mo. USD LIBOR + 3.75%, Floor 0.50%), 10/4/28			588		588,735
DXP Enterprises, Inc., Term Loan, 5.75%, (1 mo. USD LIBOR + 4.75%, Floor 1.00%), 12/16/27			620		620,894
Dynacast International, LLC, Term Loan, 10.25%, (3 mo. USD LIBOR + 9.25%, Floor 1.00%), 10/22/25			335		345,514
Engineered Machinery Holdings, Inc., Term Loan, 4.50%, (3 mo. USD LIBOR + 3.75%, Floor 0.75%), 5/19/28			2,718		2,726,279
Filtration Group Corporation:
Term Loan, 10/21/28(11)			650		650,650
Term Loan, 3.50%, (3 mo. EURIBOR + 3.50%), 3/29/25	EUR		362		418,775
GrafTech Finance, Inc., Term Loan, 3.50%, (1 mo. USD LIBOR + 3.00%, Floor 0.50%), 2/12/25			1,948		1,953,500
Granite Holdings US Acquisition Co., Term Loan, 4.132%, (3 mo. USD LIBOR + 4.00%), 9/30/26			1,092		1,091,420
LTI Holdings, Inc.:
Term Loan, 4.837%, (1 mo. USD LIBOR + 4.75%), 7/24/26			206		206,422
Term Loan, 4.837%, (1 mo. USD LIBOR + 4.75%), 7/24/26			343		343,176
Madison IAQ, LLC, Term Loan, 3.75%, (6 mo. USD LIBOR + 3.25%, Floor 0.50%), 6/21/28			2,488		2,486,463
Robertshaw US Holding Corp., Term Loan, 4.50%, (1 mo. USD LIBOR + 3.50%, Floor 1.00%), 2/28/25			941		911,766
Tiger Acquisition, LLC, Term Loan, 3.75%, (3 mo. USD LIBOR + 3.25%, Floor 0.50%), 6/1/28			549		545,980
Titan Acquisition Limited, Term Loan, 3.167%, (3 mo. USD LIBOR + 3.00%), 3/28/25			2,000		1,967,750
Vertical US Newco, Inc., Term Loan, 4.00%, (6 mo. USD LIBOR + 3.50%, Floor 0.50%), 7/30/27			1,213		1,216,261

Borrower/Description		Principal Amount* (000’s omitted)		Value
Industrial Equipment (continued)
Zephyr German BidCo GmbH, Term Loan, 3.75%, (1 mo. EURIBOR + 3.75%), 3/10/28	EUR		600	$	693,513
				$	27,823,449
Insurance — 5.8%
Alliant Holdings Intermediate, LLC, Term Loan, 3.337%, (1 mo. USD LIBOR + 3.25%), 5/9/25			2,264	$	2,249,227
AssuredPartners, Inc.:
Term Loan, 3.587%, (1 mo. USD LIBOR + 3.50%), 2/12/27			1,396		1,389,290
Term Loan, 4.00%, (1 mo. USD LIBOR + 3.50%, Floor 0.50%), 2/12/27			1,397		1,394,464
Asurion, LLC:
Term Loan, 7/31/27(11)			1,500		1,487,187
Term Loan, 3.212%, (1 mo. USD LIBOR + 3.13%), 11/3/23			1,174		1,171,631
Term Loan, 3.337%, (1 mo. USD LIBOR + 3.25%), 12/23/26			1,171		1,160,292
Term Loan - Second Lien, 5.337%, (1 mo. USD LIBOR + 5.25%), 1/31/28			1,830		1,825,615
Financiere CEP S.A.S., Term Loan, 4.00%, (1 mo. EURIBOR + 4.00%), 6/18/27	EUR		500		581,323
Hub International Limited, Term Loan, 4.00%, (3 mo. USD LIBOR + 3.25%, Floor 0.75%), 4/25/25			3,990		3,994,582
NFP Corp., Term Loan, 3.337%, (1 mo. USD LIBOR + 3.25%), 2/15/27			2,194		2,173,270
Ryan Specialty Group, LLC, Term Loan, 3.75%, (1 mo. USD LIBOR + 3.00%, Floor 0.75%), 9/1/27			2,992		3,000,858
Sedgwick Claims Management Services, Inc., Term Loan, 3.337%, (1 mo. USD LIBOR + 3.25%), 12/31/25			1,147		1,137,373
USI, Inc., Term Loan, 3.382%, (3 mo. USD LIBOR + 3.25%), 12/2/26			1,995		1,983,086
				$	23,548,198
Leisure Goods / Activities / Movies — 5.6%
AMC Entertainment Holdings, Inc., Term Loan, 3.086%, (1 mo. USD LIBOR + 3.00%), 4/22/26			1,731	$	1,602,117
Amer Sports Oyj, Term Loan, 4.50%, (6 mo. EURIBOR + 4.50%), 3/30/26	EUR		1,650		1,909,103
Carnival Corporation:
Term Loan, 3.75%, (1 mo. USD LIBOR + 3.00%, Floor 0.75%), 6/30/25			1,284		1,282,546
Term Loan, 4.00%, (6 mo. USD LIBOR + 3.25%, Floor 0.75%), 10/18/28			2,300		2,300,359
City Football Group Limited, Term Loan, 4.00%, (6 mo. USD LIBOR + 3.50%, Floor 0.50%), 7/21/28			2,000		1,990,000

20 See Notes to Financial Statements.

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Portfolio of Investments — continued

Borrower/Description		Principal Amount* (000’s omitted)		Value
Leisure Goods / Activities / Movies (continued)
ClubCorp Holdings, Inc., Term Loan, 2.882%, (3 mo. USD LIBOR + 2.75%), 9/18/24			1,496	$	1,415,377
Crown Finance US, Inc.:
Term Loan, 3.50%, (6 mo. USD LIBOR + 2.50%, Floor 1.00%), 2/28/25			1,919		1,592,817
Term Loan, 3.75%, (2 mo. USD LIBOR + 2.75%, Floor 1.00%), 9/30/26			1,375		1,130,176
Term Loan, 15.25%, (7.00% cash, 8.25% PIK), 5/23/24(13)			468		571,199
LABL, Inc., Term Loan, 10/29/28(11)			625		622,136
Lindblad Expeditions, Inc.:
Term Loan, 6.00%, (1 mo. USD LIBOR + 5.25%, Floor 0.75%), 4.75% cash, 1.25% PIK, 3/27/25			336		324,141
Term Loan, 6.00%, (1 mo. USD LIBOR + 5.25%, Floor 0.75%), 4.75% cash, 1.25% PIK, 3/27/25			1,344		1,296,565
Match Group, Inc., Term Loan, 1.874%, (3 mo. USD LIBOR + 1.75%), 2/13/27			700		693,875
Sandy BidCo B.V., Term Loan, 6/12/28(11)	EUR		925		1,071,640
SeaWorld Parks & Entertainment, Inc., Term Loan, 3.50%, (1 mo. USD LIBOR + 3.00%, Floor 0.50%), 8/25/28			750		749,140
Steinway Musical Instruments, Inc., Term Loan, 4.75%, (1 mo. USD LIBOR + 3.75%, Floor 1.00%), 2/14/25			182		181,029
Travel Leaders Group, LLC, Term Loan, 4.087%, (1 mo. USD LIBOR + 4.00%), 1/25/24			1,611		1,532,136
UFC Holdings, LLC, Term Loan, 3.50%, (6 mo. USD LIBOR + 2.75%, Floor 0.75%), 4/29/26			1,795		1,787,262
Vue International Bidco PLC, Term Loan, 4.75%, (6 mo. EURIBOR + 4.75%), 7/3/26	EUR		615		673,354
				$	22,724,972
Lodging and Casinos — 1.4%
Boyd Gaming Corporation, Term Loan, 2.324%, (1 week USD LIBOR + 2.25%), 9/15/23			608	$	607,844
Oravel Stays Singapore Pte. Ltd., Term Loan, 9.00%, (3 mo. USD LIBOR + 8.25%, Floor 0.75%), 6/23/26			599		646,380
Playa Resorts Holding B.V., Term Loan, 3.75%, (1 mo. USD LIBOR + 2.75%, Floor 1.00%), 4/29/24			1,145		1,119,528
Raptor Acquisition Corp., Term Loan, 4.75%, (3 mo. USD LIBOR + 4.00%, Floor 0.75%), 11/1/26			1,525		1,534,848
Sportradar Capital S.a.r.l., Term Loan, 4.25%, (6 mo. EURIBOR + 4.25%), 11/22/27	EUR		500		580,649
Twin River Worldwide Holdings, Inc., Term Loan, 3.75%, (1 mo. USD LIBOR + 3.25%, Floor 0.50%), 8/6/28			975		975,549
				$	5,464,798

Borrower/Description		Principal Amount* (000’s omitted)			Value
Nonferrous Metals / Minerals — 0.2%
Oxbow Carbon, LLC, Term Loan, 5.00%, (1 mo. USD LIBOR + 4.25%, Floor 0.75%), 10/13/25			713		$	715,394
					$	715,394
Oil and Gas — 4.1%
Ameriforge Group, Inc., Term Loan, 12.567%, (1 mo. USD LIBOR + 13.00%, Floor 1.00%), 12/31/23(10)			0	(14)	$	27
Apergy Corporation, Term Loan, 2.625%, (1 mo. USD LIBOR + 2.50%), 5/9/25			118			117,728
Centurion Pipeline Company, LLC:
Term Loan, 3.337%, (1 mo. USD LIBOR + 3.25%), 9/29/25			243			241,909
Term Loan, 4.087%, (1 mo. USD LIBOR + 4.00%), 9/28/25			223			221,777
CITGO Holding, Inc., Term Loan, 8.00%, (3 mo. USD LIBOR + 7.00%, Floor 1.00%), 8/1/23			1,158			1,154,730
CITGO Petroleum Corporation, Term Loan, 7.25%, (3 mo. USD LIBOR + 6.25%, Floor 1.00%), 3/28/24			4,552			4,575,645
CQP Holdco L.P., Term Loan, 4.25%, (1 mo. USD LIBOR + 3.75%, Floor 0.50%), 6/5/28			1,948			1,947,017
Delek US Holdings, Inc., Term Loan, 6.50%, (1 mo. USD LIBOR + 5.50%, Floor 1.00%), 3/31/25			566			569,207
Matador Bidco S.a.r.l., Term Loan, 4.837%, (1 mo. USD LIBOR + 4.75%), 10/15/26			3,728			3,740,808
Oryx Midstream Services Permian Basin, LLC, Term Loan, 3.75%, (3 mo. USD LIBOR + 3.25%, Floor 0.50%), 10/5/28			700			698,250
Prairie ECI Acquiror L.P., Term Loan, 4.837%, (1 mo. USD LIBOR + 4.75%), 3/11/26			455			440,444
QuarterNorth Energy Holding, Inc., Term Loan - Second Lien, 9.00%, (3 mo. USD LIBOR + 8.00%, Floor 1.00%), 8/27/26			755			760,027
UGI Energy Services, LLC, Term Loan, 3.837%, (1 mo. USD LIBOR + 3.75%), 8/13/26			1,995			2,003,001
					$	16,470,570
Publishing — 1.7%
Adevinta ASA:
Term Loan, 3.25%, (3 mo. EURIBOR + 3.25%), 6/26/28	EUR		1,150		$	1,331,137
Term Loan, 3.75%, (3 mo. USD LIBOR + 3.00%, Floor 0.75%), 6/26/28			299			299,858
Alchemy Copyrights, LLC, Term Loan, 3.50%, (1 mo. USD LIBOR + 3.00%, Floor 0.50%), 3/10/28			495			496,247
Ascend Learning, LLC:
Term Loan, 4.00%, (1 mo. USD LIBOR + 3.00%, Floor 1.00%), 7/12/24			2,552			2,553,301
Term Loan, 4.75%, (1 mo. USD LIBOR + 3.75%, Floor 1.00%), 7/12/24			396			397,138

21 See Notes to Financial Statements.

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Portfolio of Investments — continued

Borrower/Description	Principal Amount* (000’s omitted)		Value
Publishing (continued)
Getty Images, Inc., Term Loan, 4.587%, (1 mo. USD LIBOR + 4.50%), 2/19/26		1,563	$	1,567,033
			$	6,644,714
Radio and Television — 2.0%
Gray Television, Inc.:
Term Loan, 10/20/28(11)		825	$	825,257
Term Loan, 2.332%, (1 mo. USD LIBOR + 2.25%), 2/7/24		209		208,375
Term Loan, 2.582%, (1 mo. USD LIBOR + 2.50%), 1/2/26		595		592,241
Hubbard Radio, LLC, Term Loan, 5.25%, (1 mo. USD LIBOR + 4.25%, Floor 1.00%), 3/28/25		646		647,502
Nexstar Broadcasting, Inc., Term Loan, 2.582%, (1 mo. USD LIBOR + 2.50%), 9/18/26		431		431,257
Sinclair Television Group, Inc.:
Term Loan, 2.59%, (1 mo. USD LIBOR + 2.50%), 9/30/26		588		580,926
Term Loan, 3.09%, (1 mo. USD LIBOR + 3.00%), 4/1/28		392		387,172
Terrier Media Buyer, Inc., Term Loan, 3.587%, (1 mo. USD LIBOR + 3.50%), 12/17/26		2,244		2,238,597
Univision Communications, Inc., Term Loan, 4.00%, (1 mo. USD LIBOR + 3.25%, Floor 0.75%), 3/15/26		2,195		2,195,185
			$	8,106,512
Retailers (Except Food and Drug) — 2.8%
CNT Holdings I Corp., Term Loan, 4.50%, (6 mo. USD LIBOR + 3.75%, Floor 0.75%), 11/8/27		721	$	723,436
Gloves Buyer, Inc., Term Loan, 4.50%, (1 week USD LIBOR + 3.75%, Floor 0.75%), 1/20/28		547		547,934
Great Outdoors Group, LLC, Term Loan, 5.00%, (3 mo. USD LIBOR + 4.25%, Floor 0.75%), 3/6/28		2,680		2,693,706
Harbor Freight Tools USA, Inc., Term Loan, 3.25%, (1 mo. USD LIBOR + 2.75%, Floor 0.50%), 10/19/27		2,743		2,739,474
Hoya Midco, LLC, Term Loan, 4.50%, (1 mo. USD LIBOR + 3.50%, Floor 1.00%), 6/30/24		1,472		1,471,673
PetSmart, Inc., Term Loan, 4.50%, (3 mo. USD LIBOR + 3.75%, Floor 0.75%), 2/11/28		3,042		3,050,252
Phillips Feed Service, Inc., Term Loan, 8.00%, (3 mo. USD LIBOR + 7.00%, Floor 1.00%), 11/13/24(4)		103		82,534
Pier 1 Imports (U.S.), Inc., Term Loan, 0.00%, 4/30/22(4)(15)		14		10,818
			$	11,319,827

Borrower/Description		Principal Amount* (000’s omitted)		Value
Steel — 0.4%
Phoenix Services International, LLC, Term Loan, 4.75%, (1 mo. USD LIBOR + 3.75%, Floor 1.00%), 3/1/25			820	$	815,893
TMS International Corp., Term Loan, 3.75%, (USD LIBOR + 2.75%, Floor 1.00%), 8/14/24(9)			248		247,815
Zekelman Industries, Inc., Term Loan, 2.086%, (1 mo. USD LIBOR + 2.00%), 1/24/27			558		553,834
				$	1,617,542
Surface Transport — 1.2%
Kenan Advantage Group, Inc., Term Loan, 4.50%, (1 mo. USD LIBOR + 3.75%, Floor 0.75%), 3/24/26			2,407	$	2,410,418
PODS, LLC, Term Loan, 3.75%, (1 mo. USD LIBOR + 3.00%, Floor 0.75%), 3/31/28			2,494		2,493,512
				$	4,903,930
Telecommunications — 2.9%
Avaya, Inc., Term Loan, 4.09%, (1 mo. USD LIBOR + 4.00%), 12/15/27			225	$	225,783
Digicel International Finance Limited, Term Loan, 3.43%, (6 mo. USD LIBOR + 3.25%), 5/28/24			1,440		1,403,413
GEE Holdings 2, LLC:
Term Loan, 9.00%, (3 mo. USD LIBOR + 8.00%, Floor 1.00%), 3/24/25			398		397,835
Term Loan - Second Lien, 9.25%, (3 mo. USD LIBOR + 8.25%, Floor 1.00%), 2.50% cash, 6.75% PIK, 3/23/26			794		718,580
Intelsat Jackson Holdings S.A.:
DIP Loan, 5.392%, (3 mo. USD LIBOR + 4.75%, Floor 1.00%), 10/13/22(10)			1,425		1,432,125
Term Loan, 8.00%, (USD Prime + 4.75%), 11/27/23			1,750		1,769,141
Term Loan, 8.75%, (USD Prime + 5.50%), 1/2/24			1,700		1,726,209
Onvoy, LLC, Term Loan, 5.50%, (3 mo. USD LIBOR + 4.50%, Floor 1.00%), 2/10/24			1,569		1,569,622
Syniverse Holdings, Inc., Term Loan, 6.00%, (3 mo. USD LIBOR + 5.00%, Floor 1.00%), 3/9/23			941		941,550
Zayo Group Holdings, Inc., Term Loan, 3.25%, (1 mo. EURIBOR + 3.25%), 3/9/27	EUR		1,419		1,608,840
				$	11,793,098
Utilities — 0.8%
Calpine Construction Finance Company L.P., Term Loan, 2.087%, (1 mo. USD LIBOR + 2.00%), 1/15/25			858	$	849,392

22 See Notes to Financial Statements.

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Portfolio of Investments — continued

Borrower/Description	Principal Amount* (000’s omitted)		Value
Utilities (continued)
USIC Holdings, Inc., Term Loan, 4.25%, (1 mo. USD LIBOR + 3.50%, Floor 0.75%), 5/12/28		2,300	$	2,300,359
			$	3,149,751
Total Senior Floating-Rate Loans (identified cost $571,890,204)			$	573,214,501
Warrants — 0.2%
Security	Shares		Value
Leisure Goods / Activities / Movies — 0.0%(12)
Cineworld Group PLC, Exp. 11/23/25(5)(6)		139,907	$	37,739
			$	37,739
Oil and Gas — 0.2%
QuarterNorth Energy, Inc., Exp. 8/27/28(5)(6)		8,007	$	828,725
			$	828,725
Retailers (Except Food and Drug) — 0.0%
David’s Bridal, LLC, Exp. 11/26/22(4)(5)(6)		4,339	$	0
			$	0
Total Warrants (identified cost $0)			$	866,464
Short-Term Investments — 2.6%
Description	Units		Value
Eaton Vance Cash Reserves Fund, LLC, 0.09%(16)		10,468,093	$	10,468,093
Total Short-Term Investments (identified cost $10,468,093)			$	10,468,093
Total Investments — 155.9% (identified cost $628,450,080)			$	629,195,654
Less Unfunded Loan Commitments — (0.4)%			$	(1,628,858	)
Net Investments — 155.5% (identified cost $626,821,222)			$	627,566,796
Other Assets, Less Liabilities — (36.7)%			$	(148,175,915	)
Auction Preferred Shares Plus Cumulative Unpaid Dividends — (18.8)%			$	(75,801,961	)
Net Assets Applicable to Common Shares — 100.0%			$	403,588,920

The percentage shown for each investment category in the Portfolio of Investments is based on net assets applicable to common shares.

* In U.S. dollars unless otherwise indicated.

⁽¹⁾  Security exempt from registration under Rule 144A of the Securities Act of 1933, as amended. These securities may be sold in certain transactions in reliance on an exemption from registration (normally to qualified institutional buyers). At October 31, 2021, the aggregate value of these securities is $31,237,821 or 7.7% of the Trust’s net assets applicable to common shares.

⁽²⁾  Variable rate security. The stated interest rate represents the rate in effect at October 31, 2021.

⁽³⁾  When-issued, variable rate security whose interest rate will be determined after October 31, 2021.

⁽⁴⁾  For fair value measurement disclosure purposes, security is categorized as Level 3 (see Note 11).

⁽⁵⁾  Non-income producing security.

⁽⁶⁾  Security was acquired in connection with a restructuring of a Senior Loan and may be subject to restrictions on resale.

⁽⁷⁾  Restricted security (see Note 7).

⁽⁸⁾  Senior floating-rate loans (Senior Loans) often require prepayments from excess cash flows or permit the borrowers to repay at their election. The degree to which borrowers repay, whether as a contractual requirement or at their election, cannot be predicted with accuracy. As a result, the actual remaining maturity may be substantially less than the stated maturities shown. However, Senior Loans will typically have an expected average life of approximately two to four years. Senior Loans typically have rates of interest which are redetermined periodically by reference to a base lending rate, plus a spread. These base lending rates are primarily the London Interbank Offered Rate (“LIBOR”) and secondarily, the prime rate offered by one or more major United States banks (the “Prime Rate”). Base lending rates may be subject to a floor, or a minimum rate. Senior Loans are generally subject to contractual restrictions that must be satisfied before they can be bought or sold.

⁽⁹⁾  The stated interest rate represents the weighted average interest rate at October 31, 2021 of contracts within the senior loan facility. Interest rates on contracts are primarily redetermined either weekly, monthly or quarterly by reference to the indicated base lending rate and spread and the reset period.

⁽¹⁰⁾  Unfunded or partially unfunded loan commitments. The stated interest rate reflects the weighted average of the reference rate and spread for the funded portion, if any, and the commitment fees on the portion of the loan that is unfunded. At October 31, 2021, the total value of unfunded loan commitments is $1,744,444. See Note 1F for description.

⁽¹¹⁾  This Senior Loan will settle after October 31, 2021, at which time the interest rate will be determined.

⁽¹²⁾  Amount is less than 0.05%.

⁽¹³⁾  Fixed-rate loan.

⁽¹⁴⁾  Principal amount is less than $500.

⁽¹⁵⁾  Issuer is in default with respect to interest and/or principal payments. For a variable rate security, interest rate has been adjusted to reflect non-accrual status.

⁽¹⁶⁾  Affiliated investment company, available to Eaton Vance portfolios and funds, which invests in high quality, U.S. dollar denominated money market instruments. The rate shown is the annualized seven-day yield as of October 31, 2021.

23 See Notes to Financial Statements.

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Portfolio of Investments — continued

Forward Foreign Currency Exchange Contracts
Currency Purchased		Currency Sold		Counterparty	Settlement Date		Unrealized Appreciation		Unrealized (Depreciation)
USD	19,159,297	EUR	16,522,901	Standard Chartered Bank		11/2/21	$	58,825	$	—
USD	12,494,574	EUR	10,568,468	HSBC Bank USA, N.A.		11/30/21		270,778		—
USD	84,666	EUR	72,791	State Street Bank and Trust Company		11/30/21		474		—
USD	19,131,881	EUR	16,522,901	Standard Chartered Bank		12/2/21		20,273		—
USD	806,766	EUR	697,311	HSBC Bank USA, N.A.		12/30/21		—		(582	)
USD	808,100	EUR	695,798	State Street Bank and Trust Company		12/30/21		2,503		—
USD	435,982	EUR	375,367	State Street Bank and Trust Company		12/30/21		1,381		—
USD	290,702	EUR	250,244	State Street Bank and Trust Company		12/30/21		969		—
USD	780,421	GBP	567,956	State Street Bank and Trust Company		1/31/22		2,970		—
USD	766,541	GBP	557,952	State Street Bank and Trust Company		1/31/22		2,785		—
							$	360,958	$	(582	)

Abbreviations:

DIP	–	Debtor In Possession
EURIBOR	–	Euro Interbank Offered Rate
LIBOR	–	London Interbank Offered Rate
PIK	–	Payment In Kind

Currency Abbreviations:

EUR	–	Euro
GBP	–	British Pound Sterling
USD	–	United States Dollar

24 See Notes to Financial Statements.

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Statement of Assets and Liabilities

Assets	October 31, 2021
Unaffiliated investments, at value (identified cost, $616,353,129)	$	617,098,703
Affiliated investment, at value (identified cost, $10,468,093)		10,468,093
Cash		5,469,746
Foreign currency, at value (identified cost, $9,982,543)		9,959,897
Interest and dividends receivable		1,667,566
Dividends receivable from affiliated investment		457
Receivable for investments sold		5,221,903
Receivable for Trust shares sold		468,782
Receivable for open forward foreign currency exchange contracts		360,958
Receivable from the transfer agent		68,883
Prepaid upfront fees on notes payable		60,395
Prepaid expenses		10,411
Total assets	$	650,855,794
Liabilities
Notes payable	$	120,000,000
Payable for investments purchased		50,255,016
Payable for when-issued securities		400,000
Payable for open forward foreign currency exchange contracts		582
Payable to affiliates:
Investment adviser fee		361,826
Trustees’ fees		3,353
Accrued expenses		444,136
Total liabilities	$	171,464,913
Auction preferred shares (3,032 shares outstanding) at liquidation value plus cumulative unpaid dividends	$	75,801,961
Net assets applicable to common shares	$	403,588,920
Sources of Net Assets
Common shares, $0.01 par value, unlimited number of shares authorized, 28,229,151 shares issued and outstanding	$	282,292
Additional paid-in capital		442,266,673
Accumulated loss		(38,960,045	)
Net assets applicable to common shares	$	403,588,920
Net Asset Value Per Common Share
($403,588,920 ÷ 28,229,151 common shares issued and outstanding)	$	14.30

25 See Notes to Financial Statements.

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Statement of Operations

Investment Income	Year Ended October 31, 2021
Interest and other income	$	33,411,738
Dividends (net of foreign taxes, $17,761)		414,285
Dividends from affiliated investment		14,505
Total investment income	$	33,840,528
Expenses
Investment adviser fee	$	5,611,457
Trustees’ fees and expenses		40,554
Custodian fee		210,697
Transfer and dividend disbursing agent fees		22,308
Legal and accounting services		361,330
Printing and postage		72,014
Interest expense and fees		2,289,377
Preferred shares service fee		75,467
Miscellaneous		171,629
Total expenses	$	8,854,833
Net investment income	$	24,985,695
Realized and Unrealized Gain (Loss)
Net realized gain (loss) —
Investment transactions	$	(7,552,432	)
Investment transactions — affiliated investment		203
Foreign currency transactions		(403,858	)
Forward foreign currency exchange contracts		755,091
Net realized loss	$	(7,200,996	)
Change in unrealized appreciation (depreciation) —
Investments	$	40,095,602
Foreign currency		(57,465	)
Forward foreign currency exchange contracts		(247,324	)
Net change in unrealized appreciation (depreciation)	$	39,790,813
Net realized and unrealized gain	$	32,589,817
Distributions to preferred shareholders	$	(99,970	)
Net increase in net assets from operations	$	57,475,542

26 See Notes to Financial Statements.

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Statements of Changes in Net Assets

	Year Ended October 31,
Increase (Decrease) in Net Assets	2021			2020
From operations —
Net investment income	$	24,985,695		$	30,059,484
Net realized loss		(7,200,996	)		(27,131,344	)
Net change in unrealized appreciation (depreciation)		39,790,813			(5,203,772	)
Distributions to preferred shareholders		(99,970	)		(1,038,031	)
Net increase (decrease) in net assets from operations	$	57,475,542		$	(3,313,663	)
Distributions to common shareholders	$	(27,741,383	)	$	(34,058,896	)
Tax return of capital to shareholders	$	(1,879,642	)	$	—
Capital share transactions —
Proceeds from shelf offering, net of offering costs (see Note 6)	$	1,152,788		$	—
Reinvestment of distributions to common shareholders		201,513			—
Cost of shares repurchased in tender offer (see Note 6)		(122,960,986	)		—
Net decrease in net assets from capital share transactions	$	(121,606,685	)	$	—
Net decrease in net assets	$	(93,752,168	)	$	(37,372,559	)
Net Assets Applicable to Common Shares
At beginning of year	$	497,341,088		$	534,713,647
At end of year	$	403,588,920		$	497,341,088

27 See Notes to Financial Statements.

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Statement of Cash Flows

Cash Flows From Operating Activities	Year Ended October 31, 2021
Net increase in net assets from operations	$	57,475,542
Distributions to preferred shareholders		99,970
Net increase in net assets from operations excluding distributions to preferred shareholders	$	57,575,512
Adjustments to reconcile net increase in net assets from operations to net cash provided by operating activities:
Investments purchased		(462,027,907	)
Investments sold and principal repayments		700,145,156
Decrease in short-term investments, net		1,818,546
Net amortization/accretion of premium (discount)		(1,456,758	)
Amortization of prepaid upfront fees on notes payable		119,269
Decrease in interest and dividends receivable		783,025
Decrease in dividends receivable from affiliated investment		858
Decrease in receivable for open forward foreign currency exchange contracts		246,742
Increase in receivable from the transfer agent		(68,883	)
Decrease in tax reclaims receivable		761
Decrease in prepaid expenses		24,510
Increase in payable for open forward foreign currency exchange contracts		582
Decrease in payable to affiliate for investment adviser fee		(145,336	)
Decrease in payable to affiliate for Trustees’ fees		(34	)
Decrease in accrued expenses		(8,183	)
Increase in unfunded loan commitments		271,226
Net change in unrealized (appreciation) depreciation from investments		(40,095,602	)
Net realized loss from investments		7,552,229
Net cash provided by operating activities	$	264,735,713
Cash Flows From Financing Activities
Cash distributions paid to common shareholders	$	(29,419,512	)
Cash distributions paid to preferred shareholders		(100,127	)
Proceeds from shelf offering, net of offering costs		684,006
Repurchases of common shares in tender offer		(122,960,986	)
Proceeds from notes payable		170,000,000
Repayments of notes payable		(273,000,000	)
Payment of prepaid upfront fees on notes payable		(127,500	)
Net cash used in financing activities	$	(254,924,119	)
Net increase in cash*	$	9,811,594
Cash at beginning of year(1)	$	5,618,049
Cash at end of year(1)	$	15,429,643
Supplemental disclosure of cash flow information:
Noncash financing activities not included herein consist of:
Reinvestment of dividends and distributions	$	201,513
Cash paid for interest and fees on borrowings		2,407,655

* Includes net change in unrealized appreciation (depreciation) on foreign currency of $(22,673).

⁽¹⁾  Balance includes foreign currency, at value.

28 See Notes to Financial Statements.

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Financial Highlights

Selected data for a common share outstanding during the periods stated

	Year Ended October 31,
	2021			2020			2019			2018			2017
Net asset value — Beginning of year (Common shares)	$	13.500		$	14.510		$	15.370		$	15.210		$	14.860
Income (Loss) From Operations
Net investment income(1)	$	0.721		$	0.816		$	0.987		$	0.885		$	0.898
Net realized and unrealized gain (loss)		0.907			(0.874	)		(0.796	)		0.153			0.359
Distributions to preferred shareholders
From net investment income(1)		(0.003	)		(0.028	)		(0.072	)		(0.066	)		(0.034	)
Discount on redemption and repurchase of auction preferred shares(1)		—			—			—			0.044			—
Total income (loss) from operations	$	1.625		$	(0.086	)	$	0.119		$	1.016		$	1.223
Less Distributions to Common Shareholders
From net investment income	$	(0.806	)	$	(0.924	)	$	(0.979	)	$	(0.856	)	$	(0.873	)
Tax return of capital		(0.056	)		—			—			—			—
Total distributions to common shareholders	$	(0.862	)	$	(0.924	)	$	(0.979	)	$	(0.856	)	$	(0.873	)
Premium from common shares sold through shelf offering (see Note 6)(1)	$	0.001		$	—		$	—		$	—		$	—
Discount on tender offer (see Note 6)(1)	$	0.036		$	—		$	—		$	—		$	—
Net asset value — End of year (Common shares)	$	14.300		$	13.500		$	14.510		$	15.370		$	15.210
Market value — End of year (Common shares)	$	14.900		$	11.900		$	12.910		$	13.430		$	14.550
Total Investment Return on Net Asset Value(2)		12.69	%		0.42	%		1.69	%		7.25	%(3)		8.54	%
Total Investment Return on Market Value(2)		33.21	%		(0.52	)%		3.55	%		(2.04	)%		9.04	%

29 See Notes to Financial Statements.

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Financial Highlights — continued

Selected data for a common share outstanding during the periods stated

	Year Ended October 31,
Ratios/Supplemental Data	2021			2020			2019			2018			2017
Net assets applicable to common shares, end of year (000’s omitted)	$	403,589		$	497,341		$	534,714		$	566,490		$	560,431
Ratios (as a percentage of average daily net assets applicable to common shares):(4)†
Expenses excluding interest and fees		1.33	%		1.32	%		1.28	%		1.31	%		1.34	%
Interest and fee expense(5)		0.46	%		0.78	%		1.40	%		1.06	%		0.75	%
Total expenses		1.79	%		2.10	%		2.68	%		2.37	%		2.09	%
Net investment income		5.05	%		6.03	%		6.64	%		5.78	%		5.93	%
Portfolio Turnover		66	%		30	%		28	%		32	%		42	%
Senior Securities:
Total notes payable outstanding (in 000’s)	$	120,000		$	223,000		$	218,000		$	222,000		$	199,000
Asset coverage per $1,000 of notes payable(6)	$	4,995		$	3,570		$	3,801		$	3,893		$	4,298
Total preferred shares outstanding		3,032			3,032			3,032			3,032			3,836
Asset coverage per preferred share(7)	$	76,531		$	66,612		$	70,501		$	72,558		$	72,511
Involuntary liquidation preference per preferred share(8)	$	25,000		$	25,000		$	25,000		$	25,000		$	25,000
Approximate market value per preferred share(8)	$	25,000		$	25,000		$	25,000		$	25,000		$	25,000

⁽¹⁾  Computed using average shares outstanding.

⁽²⁾  Returns are historical and are calculated by determining the percentage change in net asset value or market value with all distributions reinvested. Distributions are assumed to be reinvested at prices obtained under the Trust’s dividend reinvestment plan.

⁽³⁾  The total return based on net asset value reflects the impact of the tender and repurchase by the Trust of a portion of its APS at 92% of the per share liquidation preference. Absent this transaction, the total return based on net asset value would have been 6.94%.

⁽⁴⁾  Ratios do not reflect the effect of dividend payments to preferred shareholders.

⁽⁵⁾  Interest and fee expense relates to the notes payable incurred to partially redeem the Trust’s APS (see Note 9).

⁽⁶⁾  Calculated by subtracting the Trust’s total liabilities (not including the notes payable and preferred shares) from the Trust’s total assets, and dividing the result by the notes payable balance in thousands.

⁽⁷⁾  Calculated by subtracting the Trust’s total liabilities (not including the notes payable and preferred shares) from the Trust’s total assets, dividing the result by the sum of the value of the notes payable and liquidation value of the preferred shares, and multiplying the result by the liquidation value of one preferred share. Such amount equates to 306%, 266%, 282%, 290%, and 290% at October 31, 2021, 2020, 2019, 2018 and 2017, respectively.

⁽⁸⁾  Plus accumulated and unpaid dividends.

^†  Ratios based on net assets applicable to common shares plus preferred shares and borrowings are presented below. Ratios do not reflect the effect of dividend payments to preferred shareholders and exclude the effect of custody fee credits, if any.

	Year Ended October 31,
	2021			2020			2019			2018			2017
Expenses excluding interest and fees		0.87	%		0.84	%		0.82	%		0.85	%		0.87	%
Interest and fee expense		0.31	%		0.50	%		0.91	%		0.69	%		0.49	%
Total expenses		1.18	%		1.34	%		1.73	%		1.54	%		1.36	%
Net investment income		3.34	%		3.86	%		4.29	%		3.76	%		3.85	%

30 See Notes to Financial Statements.

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Notes to Financial Statements

1  Significant Accounting Policies

Eaton Vance Senior Floating-Rate Trust (the Trust) is a Massachusetts business trust registered under the Investment Company Act of 1940, as amended (the 1940 Act), as a diversified, closed-end management investment company. The Trust’s primary investment objective is to provide a high level of current income. The Trust may, as a secondary objective, also seek preservation of capital to the extent consistent with its primary objective.

The following is a summary of significant accounting policies of the Trust. The policies are in conformity with accounting principles generally accepted in the United States of America (U.S. GAAP). The Trust is an investment company and follows accounting and reporting guidance in the Financial Accounting Standards Board (FASB) Accounting Standards Codification Topic 946.

A  Investment Valuation — The following methodologies are used to determine the market value or fair value of investments.

Senior Floating-Rate Loans. Interests in senior floating-rate loans (Senior Loans) for which reliable market quotations are readily available are valued generally at the average mean of bid and ask quotations obtained from a third party pricing service. Other Senior Loans are valued at fair value by the investment adviser under procedures approved by the Trustees. In fair valuing a Senior Loan, the investment adviser utilizes one or more of the valuation techniques described in (i) through (iii) below to assess the likelihood that the borrower will make a full repayment of the loan underlying such Senior Loan relative to yields on other Senior Loans issued by companies of comparable credit quality. If the investment adviser believes that there is a reasonable likelihood of full repayment, the investment adviser will determine fair value using a matrix pricing approach that considers the yield on the Senior Loan. If the investment adviser believes there is not a reasonable likelihood of full repayment, the investment adviser will determine fair value using analyses that include, but are not limited to: (i) a comparison of the value of the borrower’s outstanding equity and debt to that of comparable public companies; (ii) a discounted cash flow analysis; or (iii) when the investment adviser believes it is likely that a borrower will be liquidated or sold, an analysis of the terms of such liquidation or sale. In certain cases, the investment adviser will use a combination of analytical methods to determine fair value, such as when only a portion of a borrower’s assets are likely to be sold. In conducting its assessment and analyses for purposes of determining fair value of a Senior Loan, the investment adviser will use its discretion and judgment in considering and appraising relevant factors. Fair value determinations are made by the portfolio managers of the Trust based on information available to such managers. The portfolio managers of other funds managed by the investment adviser that invest in Senior Loans may not possess the same information about a Senior Loan borrower as the portfolio managers of the Trust. At times, the fair value of a Senior Loan determined by the portfolio managers of other funds managed by the investment adviser that invest in Senior Loans may vary from the fair value of the same Senior Loan determined by the portfolio managers of the Trust. The fair value of each Senior Loan is periodically reviewed and approved by the investment adviser’s Valuation Committee and by the Trustees based upon procedures approved by the Trustees. Junior Loans (i.e., subordinated loans and second lien loans) are valued in the same manner as Senior Loans.

Debt Obligations. Debt obligations are generally valued on the basis of valuations provided by third party pricing services, as derived from such services’ pricing models. Inputs to the models may include, but are not limited to, reported trades, executable bid and ask prices, broker/dealer quotations, prices or yields of securities with similar characteristics, interest rates, anticipated prepayments, benchmark curves or information pertaining to the issuer, as well as industry and economic events. The pricing services may use a matrix approach, which considers information regarding securities with similar characteristics to determine the valuation for a security. Short-term debt obligations purchased with a remaining maturity of sixty days or less for which a valuation from a third party pricing service is not readily available may be valued at amortized cost, which approximates fair value.

Equity Securities. Equity securities listed on a U.S. securities exchange generally are valued at the last sale or closing price on the day of valuation or, if no sales took place on such date, at the mean between the closing bid and ask prices on the exchange where such securities are principally traded. Equity securities listed on the NASDAQ National Market System are valued at the NASDAQ official closing price. Unlisted or listed securities for which closing sales prices or closing quotations are not available are valued at the mean between the latest available bid and ask prices or, in the case of preferred equity securities that are not listed or traded in the over-the-counter market, by a third party pricing service that uses various techniques that consider factors including, but not limited to, prices or yields of securities with similar characteristics, benchmark yields, broker/dealer quotes, quotes of underlying common stock, issuer spreads, as well as industry and economic events.

Derivatives. Forward foreign currency exchange contracts are generally valued at the mean of the average bid and average ask prices that are reported by currency dealers to a third party pricing service at the valuation time. Such third party pricing service valuations are supplied for specific settlement periods and the Trust’s forward foreign currency exchange contracts are valued at an interpolated rate between the closest preceding and subsequent settlement period reported by the third party pricing service.

Foreign Securities and Currencies. Foreign securities and currencies are valued in U.S. dollars, based on foreign currency exchange rate quotations supplied by a third party pricing service. The pricing service uses a proprietary model to determine the exchange rate. Inputs to the model include reported trades and implied bid/ask spreads.

Affiliated Fund. The Trust may invest in Eaton Vance Cash Reserves Fund, LLC (Cash Reserves Fund), an affiliated investment company managed by Eaton Vance Management (EVM). While Cash Reserves Fund is not a registered money market mutual fund, it conducts all of its investment activities in accordance with the requirements of Rule 2a-7 under the 1940 Act. Investments in Cash Reserves Fund are valued at the closing net asset value per unit on the valuation day. Cash Reserves Fund generally values its investment securities based on available market quotations provided by a third party pricing service.

Fair Valuation. Investments for which valuations or market quotations are not readily available or are deemed unreliable are valued at fair value using methods determined in good faith by or at the direction of the Trustees of the Trust in a manner that most fairly reflects the security’s “fair value”, which is the amount that the Trust might reasonably expect to receive for the security upon its current sale in the ordinary course. Each such determination is based

31

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Notes to Financial Statements — continued

on a consideration of relevant factors, which are likely to vary from one pricing context to another. These factors may include, but are not limited to, the type of security, the existence of any contractual restrictions on the security’s disposition, the price and extent of public trading in similar securities of the issuer or of comparable companies or entities, quotations or relevant information obtained from broker/dealers or other market participants, information obtained from the issuer, analysts, and/or the appropriate stock exchange (for exchange-traded securities), an analysis of the company’s or entity’s financial statements, and an evaluation of the forces that influence the issuer and the market(s) in which the security is purchased and sold.

B  Investment Transactions — Investment transactions for financial statement purposes are accounted for on a trade date basis. Realized gains and losses on investments sold are determined on the basis of identified cost.

C  Income — Interest income is recorded on the basis of interest accrued, adjusted for amortization of premium or accretion of discount. Fees associated with loan amendments are recognized immediately. Dividend income is recorded on the ex-dividend date for dividends received in cash and/or securities. Withholding taxes on foreign dividends have been provided for in accordance with the Trust’s understanding of the applicable countries’ tax rules and rates. Distributions from investment companies are recorded as dividend income, capital gains or return of capital based on the nature of the distribution.

D  Federal Taxes — The Trust’s policy is to comply with the provisions of the Internal Revenue Code applicable to regulated investment companies and to distribute to shareholders each year substantially all of its net investment income, and all or substantially all of its net realized capital gains. Accordingly, no provision for federal income or excise tax is necessary.

As of October 31, 2021, the Trust had no uncertain tax positions that would require financial statement recognition, de-recognition, or disclosure. The Trust files a U.S. federal income tax return annually after its fiscal year-end, which is subject to examination by the Internal Revenue Service for a period of three years from the date of filing.

E  Foreign Currency Translation — Investment valuations, other assets, and liabilities initially expressed in foreign currencies are translated each business day into U.S. dollars based upon current exchange rates. Purchases and sales of foreign investment securities and income and expenses denominated in foreign currencies are translated into U.S. dollars based upon currency exchange rates in effect on the respective dates of such transactions. Recognized gains or losses on investment transactions attributable to changes in foreign currency exchange rates are recorded for financial statement purposes as net realized gains and losses on investments. That portion of unrealized gains and losses on investments that results from fluctuations in foreign currency exchange rates is not separately disclosed.

F  Unfunded Loan Commitments — The Trust may enter into certain loan agreements all or a portion of which may be unfunded. The Trust is obligated to fund these commitments at the borrower’s discretion. These commitments, are disclosed in the accompanying Portfolio of Investments. At October 31, 2021, the Trust had sufficient cash and/or securities to cover these commitments.

G  Use of Estimates — The preparation of the financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of income and expense during the reporting period. Actual results could differ from those estimates.

H  Indemnifications — Under the Trust’s organizational documents, its officers and Trustees may be indemnified against certain liabilities and expenses arising out of the performance of their duties to the Trust. Under Massachusetts law, if certain conditions prevail, shareholders of a Massachusetts business trust (such as the Trust) could be deemed to have personal liability for the obligations of the Trust. However, the Trust’s Declaration of Trust contains an express disclaimer of liability on the part of Trust shareholders and the By-laws provide that the Trust shall assume, upon request by the shareholder, the defense on behalf of any Trust shareholders. Moreover, the By-laws also provide for indemnification out of Trust property of any shareholder held personally liable solely by reason of being or having been a shareholder for all loss or expense arising from such liability. Additionally, in the normal course of business, the Trust enters into agreements with service providers that may contain indemnification clauses. The Trust’s maximum exposure under these arrangements is unknown as this would involve future claims that may be made against the Trust that have not yet occurred.

I  Forward Foreign Currency Exchange Contracts — The Trust may enter into forward foreign currency exchange contracts for the purchase or sale of a specific foreign currency at a fixed price on a future date. The forward foreign currency exchange contracts are adjusted by the daily exchange rate of the underlying currency and any gains or losses are recorded as unrealized until such time as the contracts have been closed. Risks may arise upon entering these contracts from the potential inability of counterparties to meet the terms of their contracts and from movements in the value of a foreign currency relative to the U.S. dollar.

J  When-Issued Securities and Delayed Delivery Transactions — The Trust may purchase securities on a delayed delivery or when-issued basis. Payment and delivery may take place after the customary settlement period for that security. At the time the transaction is negotiated, the price of the security that will be delivered is fixed. The Trust maintains cash and/or security positions for these commitments such that sufficient liquid assets will be available to make payments upon settlement. Securities purchased on a delayed delivery or when-issued basis are marked-to-market daily and begin earning interest on settlement date. Such security purchases are subject to the risk that when delivered they will be worth less than the agreed upon payment price. Losses may also arise if the counterparty does not perform under the contract.

32

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Notes to Financial Statements — continued

2  Auction Preferred Shares

The Trust issued Auction Preferred Shares (APS) on January 26, 2004 in a public offering. Dividends on the APS, which accrue daily, are cumulative at rates which are reset weekly for Series A and Series B, and approximately monthly for Series C and Series D by an auction, unless a special dividend period has been set. Series of APS are identical in all respects except for the reset dates of the dividend rates. If the APS auctions do not successfully clear, the dividend payment rate over the next period for the APS holders is set at a specified maximum applicable rate until such time as the APS auctions are successful. Auctions have not cleared since February 13, 2008 and the rate since that date has been the maximum applicable rate (see Note 3). The maximum applicable rate on the APS is 150% of the “AA” Financial Composite Commercial Paper Rate at the date of the auction. The stated spread over the reference benchmark rate is determined based on the credit rating of the APS.

The number of APS issued and outstanding at October 31, 2021 are as follows:

	APS Issued and Outstanding
Series A		739
Series B		763
Series C		738
Series D		792

The APS are redeemable at the option of the Trust at a redemption price equal to $25,000 per share, plus accumulated and unpaid dividends, on any dividend payment date. The APS are also subject to mandatory redemption at a redemption price equal to $25,000 per share, plus accumulated and unpaid dividends, if the Trust is in default for an extended period on its asset maintenance requirements with respect to the APS. If the dividends on the APS remain unpaid in an amount equal to two full years’ dividends, the holders of the APS as a class have the right to elect a majority of the Board of Trustees. In general, the holders of the APS and the common shares have equal voting rights of one vote per share, except that the holders of the APS, as a separate class, have the right to elect at least two members of the Board of Trustees. The APS have a liquidation preference of $25,000 per share, plus accumulated and unpaid dividends. The Trust is required to maintain certain asset coverage with respect to the APS as defined in the Trust’s By-Laws and the 1940 Act. The Trust pays an annual fee up to 0.15% of the liquidation value of the APS to broker/dealers as a service fee if the auctions are unsuccessful; otherwise, the annual fee is 0.25%.

There were no transactions in APS during the years ended October 31, 2021 and October 31, 2020.

3  Distributions to Shareholders and Income Tax Information

The Trust intends to make monthly distributions of net investment income to common shareholders, after payment of any dividends on any outstanding APS. In addition, at least annually, the Trust intends to distribute all or substantially all of its net realized capital gains. Distributions to common shareholders are recorded on the ex-dividend date. Distributions to preferred shareholders are recorded daily and are payable at the end of each dividend period. The dividend rates for the APS at October 31, 2021, and the amount of dividends accrued (including capital gains, if any) to APS shareholders, average APS dividend rates, and dividend rate ranges for the year then ended were as follows:

	APS Dividend Rates at October 31, 2021			Dividends Accrued to APS Shareholders		Average APS Dividend Rates			Dividend Rate Ranges (%)
Series A		0.11	%	$	24,493		0.13	%		0.08-0.26
Series B		0.11			25,289		0.13			0.08-0.26
Series C		0.13			24,105		0.13			0.08-0.15
Series D		0.11			26,083		0.13			0.08-0.26

Beginning February 13, 2008 and consistent with the patterns in the broader market for auction-rate securities, the Trust’s APS auctions were unsuccessful in clearing due to an imbalance of sell orders over bids to buy the APS. As a result, the dividend rates of the APS were reset to the maximum applicable rates. The table above reflects such maximum dividend rate for each series as of October 31, 2021.

Distributions to shareholders are determined in accordance with income tax regulations, which may differ from U.S. GAAP. As required by U.S. GAAP, only distributions in excess of tax basis earnings and profits are reported in the financial statements as a return of capital. Permanent differences between book and tax accounting relating to distributions are reclassified to paid-in capital. For tax purposes, distributions from short-term capital gains are considered to be from ordinary income.

33

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Notes to Financial Statements — continued

The tax character of distributions declared for the years ended October 31, 2021 and October 31, 2020 was as follows:

	Year Ended October 31,
	2021		2020
Ordinary income	$	27,841,353	$	35,096,927
Tax return of capital	$	1,879,642	$	—

As of October 31, 2021, the components of distributable earnings (accumulated loss) on a tax basis were as follows:

Deferred capital losses	$	(39,283,456	)
Net unrealized appreciation		323,411
Accumulated loss	$	(38,960,045	)

At October 31, 2021, the Trust, for federal income tax purposes, had deferred capital losses of $39,283,456 which would reduce its taxable income arising from future net realized gains on investment transactions, if any, to the extent permitted by the Internal Revenue Code, and thus would reduce the amount of distributions to shareholders, which would otherwise be necessary to relieve the Trust of any liability for federal income or excise tax. The deferred capital losses are treated as arising on the first day of the Trust’s next taxable year and retain the same short-term or long-term character as when originally deferred. Of the deferred capital losses at October 31, 2021, $36,757,417 are long-term and $2,526,039 are short-term.

The cost and unrealized appreciation (depreciation) of investments, including open derivative contracts, of the Trust at October 31, 2021, as determined on a federal income tax basis, were as follows:

Aggregate cost	$	627,148,901
Gross unrealized appreciation	$	6,053,128
Gross unrealized depreciation		(5,635,233	)
Net unrealized appreciation	$	417,895

4  Investment Adviser Fee and Other Transactions with Affiliates

The investment adviser fee is earned by EVM as compensation for investment advisory services rendered to the Trust. On March 1, 2021, Morgan Stanley acquired Eaton Vance Corp. (the “Transaction”) and EVM became an indirect, wholly-owned subsidiary of Morgan Stanley. In connection with the closing of the Transaction, the Trust entered into an interim investment advisory agreement (the “Interim Agreement”) with EVM, which took effect on March 1, 2021. The Interim Agreement allowed EVM to continue to manage the Trust for up to an additional 150 days following the Transaction to provide more time for further proxy solicitation in connection with shareholder approval of a new investment advisory agreement (the “New Agreement”). Compensation payable to EVM pursuant to the Interim Agreement was required to be held in an interest-bearing escrow account with the Trust’s custodian. The New Agreement was approved by the Trust’s shareholders on May 12, 2021.

Pursuant to the New Agreement (and the Trust’s Interim Agreement and investment advisory agreement with EVM in effect prior to March 1, 2021), the investment adviser fee is computed at an annual rate of 0.75% of the Trust’s average daily gross assets and is payable monthly. Gross assets, as defined in the New Agreement, the Interim Agreement and the Trust’s prior investment advisory agreement with EVM in effect prior to March 1, 2021, means total assets of the Trust, including any form of investment leverage, minus all accrued expenses incurred in the normal course of operations, but not excluding any liabilities or obligations attributable to investment leverage obtained through (i) indebtedness of any type (including, without limitation, borrowing through a credit facility or the issuance of debt securities), (ii) the issuance of preferred stock or other similar preference securities, (iii) the reinvestment of collateral received for securities loaned in accordance with the Trust’s investment objectives and policies, and/or (iv) any other means. Accrued expenses includes other liabilities other than indebtedness attributable to leverage. For the year ended October 31, 2021, the Trust’s investment adviser fee amounted to $5,611,457. The Trust may invest its cash in Cash Reserves Fund. EVM does not currently receive a fee for advisory services provided to Cash Reserves Fund. EVM also serves as administrator of the Trust, but receives no compensation.

Trustees and officers of the Trust who are members of EVM’s organization receive remuneration for their services to the Trust out of the investment adviser fee. Trustees of the Trust who are not affiliated with EVM may elect to defer receipt of all or a percentage of their annual fees in accordance with the terms of the Trustees Deferred Compensation Plan. For the year ended October 31, 2021, no significant amounts have been deferred. Certain officers and Trustees of the Trust are officers of EVM.

34

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Notes to Financial Statements — continued

5  Purchases and Sales of Investments

Purchases and sales of investments, other than short-term obligations and including maturities, paydowns and principal repayments on Senior Loans, aggregated $485,314,201 and $704,018,020, respectively, for the year ended October 31, 2021.

6  Common Shares of Beneficial Interest and Shelf Offering

The Trust may issue common shares pursuant to its dividend reinvestment plan. Common shares issued by the Trust pursuant to its dividend reinvestment plan for the year ended October 31, 2021 were 14,072. There were no common shares issued by the Trust for the year ended October 31, 2020.

As announced on March 16, 2021, and further updated on May 12, 2021, conditioned on shareholder approval of the New Agreement (which occurred on May 12, 2021), the Trust’s Board of Trustees authorized an initial conditional cash tender offer (the “Initial Tender Offer”) by the Trust for up to 50% of its outstanding common shares at a price per share equal to 99% of the Trust’s net asset value (“NAV”) per share as of the close of regular trading on the New York Stock Exchange on the date the tender offer expires. On June 29, 2021, the Trust commenced a cash tender offer for up to 18,424,157 of its outstanding common shares. The tender offer expired at 5:00 P.M. Eastern Time on July 30, 2021. The number of shares properly tendered was 8,712,234. The purchase price of the properly tendered shares was equal to $14.1136 per share for an aggregate purchase price of $122,960,986.

In addition to the Initial Tender Offer, the Trust announced on May 12, 2021 that it will conduct cash tender offers in the fourth quarter of each of 2022, 2023 and 2024 (each, a “Conditional Tender Offer”) for up to 10% of the Trust’s then-outstanding common shares if, from January to August of the relevant year, the Trust’s shares trade at an average daily discount to NAV of more than 10%, based upon the Trust’s volume-weighted average market price and NAV on each business day during the period. If triggered, common shares tendered and accepted in a Conditional Tender Offer would be repurchased at a price per share equal to 98% of the Trust’s NAV as of the close of regular trading on the New York Stock Exchange on the date such Conditional Tender Offer expires.

Pursuant to a registration statement filed with the SEC, the Trust is authorized to issue up to an additional 4,084,905 common shares through an equity shelf offering program (the “shelf offering”). Under the shelf offering, the Trust, subject to market conditions, may raise additional capital from time to time and in varying amounts and offering methods at a net price at or above the Trust’s net asset value per common share. During the year ended October 31, 2021, the Fund sold 79,000 common shares and received proceeds (net of offering costs) of $1,152,788 through its shelf offering. The net proceeds in excess of the net asset value of the shares sold were $23,708 for the year ended October 31, 2021. Offering costs (other than the applicable sales commissions) incurred in connection with the shelf offering were borne directly by EVM. Eaton Vance Distributors, Inc. (EVD), an affiliate of EVM, is the distributor of the Fund’s shares and is entitled to receive a sales commission from the Fund of 1.00% of the gross sales price per share, a portion of which is re-allowed to sales agents. The Fund was informed that the sales commissions retained by EVD during the year ended October 31, 2021 were $2,329. During the year ended October 31, 2020, there were no shares sold by the Trust pursuant to its shelf offering.

In November 2013, the Board of Trustees initially approved a share repurchase program for the Trust. Pursuant to the reauthorization of the share repurchase program by the Board of Trustees in March 2019, the Trust is authorized to repurchase up to 10% of its common shares outstanding as of the last day of the prior calendar year at market prices when shares are trading at a discount to net asset value. The share repurchase program does not obligate the Trust to purchase a specific amount of shares. There were no repurchases of common shares by the Trust for the years ended October 31, 2021 and October 31, 2020.

7  Restricted Securities

At October 31, 2021, the Trust owned the following securities (representing 0.2% of net assets applicable to common shares) which were restricted as to public resale and not registered under the Securities Act of 1933 (excluding Rule 144A securities). The Trust has various registration rights (exercisable under a variety of circumstances) with respect to these securities. The value of these securities is determined based on valuations provided by brokers when available, or if not available, they are valued at fair value using methods determined in good faith by or at the direction of the Trustees.

Description	Date of Acquisition		Shares		Cost		Value
Common Stocks
Nine Point Energy Holdings, Inc.		7/15/14		758	$	34,721	$	0
Skillsoft Corp.		6/23/21		53,012		530,123		640,113
Convertible Preferred Stocks
Nine Point Energy Holdings, Inc., Series A, 12.00%		5/26/17		14		14,000		0
Total Restricted Securities					$	578,844	$	640,113

35

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Notes to Financial Statements — continued

8  Financial Instruments

The Trust may trade in financial instruments with off-balance sheet risk in the normal course of its investing activities. These financial instruments may include forward foreign currency exchange contracts and may involve, to a varying degree, elements of risk in excess of the amounts recognized for financial statement purposes. The notional or contractual amounts of these instruments represent the investment the Trust has in particular classes of financial instruments and do not necessarily represent the amounts potentially subject to risk. The measurement of the risks associated with these instruments is meaningful only when all related and offsetting transactions are considered. A summary of obligations under these financial instruments at October 31, 2021 is included in the Portfolio of Investments. At October 31, 2021, the Trust had sufficient cash and/or securities to cover commitments under these contracts.

The Trust is subject to foreign exchange risk in the normal course of pursuing its investment objectives. Because the Trust holds foreign currency denominated investments, the value of these investments and related receivables and payables may change due to future changes in foreign currency exchange rates. To hedge against this risk, the Trust enters into forward foreign currency exchange contracts.

The Trust enters into forward foreign currency exchange contracts that may contain provisions whereby the counterparty may terminate the contract under certain conditions, including but not limited to a decline in the Trust’s net assets below a certain level over a certain period of time, which would trigger a payment by the Trust for those derivatives in a net liability position. At October 31, 2021, the fair value of derivatives with credit-related contingent features in a net liability position was $582. At October 31, 2021, there were no assets pledged by the Trust for such liability.

The over-the-counter (OTC) derivatives in which the Trust invests are subject to the risk that the counterparty to the contract fails to perform its obligations under the contract. To mitigate this risk, the Trust has entered into an International Swaps and Derivatives Association, Inc. Master Agreement (“ISDA Master Agreement”) or similar agreement with substantially all its derivative counterparties. An ISDA Master Agreement is a bilateral agreement between the Trust and a counterparty that governs certain OTC derivatives and typically contains, among other things, set-off provisions in the event of a default and/or termination event as defined under the relevant ISDA Master Agreement. Under an ISDA Master Agreement, the Trust may, under certain circumstances, offset with the counterparty certain derivative financial instruments’ payables and/or receivables with collateral held and/or posted and create one single net payment. The provisions of the ISDA Master Agreement typically permit a single net payment in the event of default including the bankruptcy or insolvency of the counterparty. However, bankruptcy or insolvency laws of a particular jurisdiction may impose restrictions on or prohibitions against the right of offset in bankruptcy or insolvency. Certain ISDA Master Agreements allow counterparties to OTC derivatives to terminate derivative contracts prior to maturity in the event the Trust’s net assets decline by a stated percentage or the Trust fails to meet the terms of its ISDA Master Agreements, which would cause the counterparty to accelerate payment by the Trust of any net liability owed to it.

The collateral requirements for derivatives traded under an ISDA Master Agreement are governed by a Credit Support Annex to the ISDA Master Agreement. Collateral requirements are determined at the close of business each day and are typically based on changes in market values for each transaction under an ISDA Master Agreement and netted into one amount for such agreement. Generally, the amount of collateral due from or to a counterparty is subject to a minimum transfer threshold amount before a transfer is required, which may vary by counterparty. Collateral pledged for the benefit of the Trust and/or counterparty is held in segregated accounts by the Trust’s custodian and cannot be sold, re-pledged, assigned or otherwise used while pledged. The portion of such collateral representing cash, if any, is reflected as deposits for derivatives collateral and, in the case of cash pledged by a counterparty for the benefit of the Trust, a corresponding liability on the Statement of Assets and Liabilities. Securities pledged by the Trust as collateral, if any, are identified as such in the Portfolio of Investments.

The fair value of open derivative instruments (not considered to be hedging instruments for accounting disclosure purposes) and whose primary underlying risk exposure is foreign exchange risk at October 31, 2021 was as follows:

	Fair Value
Derivative	Asset Derivative(1)		Liability Derivative(2)
Forward foreign currency exchange contracts	$	360,958	$	(582	)

⁽¹⁾  Statement of Assets and Liabilities location: Receivable for open forward foreign currency exchange contracts.

⁽²⁾  Statement of Assets and Liabilities location: Payable for open forward foreign currency exchange contracts.

36

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Notes to Financial Statements — continued

The Trust’s derivative assets and liabilities at fair value by type, which are reported gross in the Statement of Assets and Liabilities, are presented in the table above. The following tables present the Trust’s derivative assets and liabilities by counterparty, net of amounts available for offset under a master netting agreement and net of the related collateral received by the Trust for such assets and pledged by the Trust for such liabilities as of October 31, 2021.

Counterparty	Derivative Assets Subject to Master Netting Agreement			Derivatives Available for Offset			Non-cash Collateral Received(a)			Cash Collateral Received(a)		Net Amount of Derivative Assets(b)
HSBC Bank USA, N.A.	$	270,778		$	(582	)	$	(235,513	)	$	—	$	34,683
Standard Chartered Bank		79,098			—			—			—		79,098
State Street Bank and Trust Company		11,082			—			—			—		11,082
	$	360,958		$	(582	)	$	(235,513	)	$	—	$	124,863
Counterparty	Derivative Liabilities Subject to Master Netting Agreement			Derivatives Available for Offset			Non-cash Collateral Pledged(a)			Cash Collateral Pledged(a)		Net Amount of Derivative Liabilities(c)
HSBC Bank USA, N.A.	$	(582	)	$	582		$	—		$	—	$	—
	$	(582	)	$	582		$	—		$	—	$	—

^(a)  In some instances, the total collateral received and/or pledged may be more than the amount shown due to overcollateralization.

^(b)  Net amount represents the net amount due from the counterparty in the event of default.

^(c)  Net amount represents the net amount payable to the counterparty in the event of default.

The effect of derivative instruments (not considered to be hedging instruments for accounting disclosure purposes) on the Statement of Operations and whose primary underlying risk exposure is foreign exchange risk for the year ended October 31, 2021 was as follows:

Derivative	Realized Gain (Loss) on Derivatives Recognized in Income(1)		Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in Income(2)
Forward foreign currency exchange contracts	$	755,091	$	(247,324	)

⁽¹⁾  Statement of Operations location: Net realized gain (loss) – Forward foreign currency exchange contracts.

⁽²⁾  Statement of Operations location: Change in unrealized appreciation (depreciation) – Forward foreign currency exchange contracts.

The average notional amount of forward foreign currency exchange contracts (based on the absolute value of notional amounts of currency purchased and currency sold) outstanding during the year ended October 31, 2021, which is indicative of the volume of this derivative type, was approximately $80,462,000.

9  Credit Agreement

The Trust has entered into a Credit Agreement, as amended (the Agreement) with a bank to borrow up to a limit of $210 million ($255 million prior to September 28, 2021) pursuant to a revolving line of credit. Borrowings under the Agreement are secured by the assets of the Trust. Interest is generally charged at a rate above the London Interbank Offered Rate (LIBOR) and is payable monthly. Under the terms of the Agreement, in effect through March 15, 2022, the Trust pays a facility fee of 0.15% on the borrowing limit. In connection with the extensions of the Agreement on March 16, 2021, April 15, 2021 and May 18, 2021, the Trust also paid upfront fees of $10,625, $37,188 and $79,687, respectively, which were/are being amortized to interest expense through April 14, 2021, July 29, 2021 and March 15, 2022, respectively. The unamortized balance at October 31, 2021 is approximately $60,000 and is included in prepaid upfront fees on notes payable on the Statement of Assets and Liabilities. The Trust is required to maintain certain net asset levels during the term of the Agreement. At October 31, 2021, the Trust had borrowings outstanding under the Agreement of $120,000,000 at an annual interest rate of 0.94%. Based on the short-term nature of the borrowings under the Agreement and the variable interest rate,

37

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Notes to Financial Statements — continued

the carrying amount of the borrowings at October 31, 2021 approximated its fair value. If measured at fair value, borrowings under the Agreement would have been considered as Level 2 in the fair value hierarchy (see Note 11) at October 31, 2021. For the year ended October 31, 2021, the average borrowings under the Agreement and the average annual interest rate (excluding fees) were $176,912,329 and 0.97%, respectively.

10  Investments in Affiliated Funds

At October 31, 2021, the value of the Trust’s investment in affiliated funds was $10,468,093, which represents 2.6% of the Trust’s net assets applicable to common shares. Transactions in affiliated funds by the Trust for the year ended October 31, 2021 were as follows:

Name	Value, beginning of period		Purchases		Sales proceeds			Net realized gain (loss)		Change in unrealized appreciation (depreciation)		Value, end of period		Dividend income		Units, end of period
Short-Term Investments
Eaton Vance Cash Reserves Fund, LLC	$	12,286,436	$	491,048,185	$	(492,866,731	)	$	203	$	—	$	10,468,093	$	14,505		10,468,093

11  Fair Value Measurements

Under generally accepted accounting principles for fair value measurements, a three-tier hierarchy to prioritize the assumptions, referred to as inputs, is used in valuation techniques to measure fair value. The three-tier hierarchy of inputs is summarized in the three broad levels listed below.

• Level 1 – quoted prices in active markets for identical investments

• Level 2 – other significant observable inputs (including quoted prices for similar investments, interest rates, prepayment speeds, credit risk, etc.)

• Level 3 – significant unobservable inputs (including a fund’s own assumptions in determining the fair value of investments)

In cases where the inputs used to measure fair value fall in different levels of the fair value hierarchy, the level disclosed is determined based on the lowest level input that is significant to the fair value measurement in its entirety. The inputs or methodology used for valuing securities are not necessarily an indication of the risk associated with investing in those securities.

At October 31, 2021, the hierarchy of inputs used in valuing the Trust’s investments and open derivative instruments, which are carried at value, were as follows:

Asset Description	Level 1		Level 2			Level 3*		Total
Asset-Backed Securities	$	—	$	26,424,518		$	—	$	26,424,518
Closed-End Funds		7,930,672		—			—		7,930,672
Common Stocks		1,435,873		1,323,144			2,101,625		4,860,642
Convertible Preferred Stocks		—		—			0		0
Corporate Bonds		—		5,430,764			—		5,430,764
Senior Floating-Rate Loans (Less Unfunded Loan Commitments)		—		571,166,194			419,449		571,585,643
Warrants		—		866,464			0		866,464
Short-Term Investments		—		10,468,093			—		10,468,093
Total Investments	$	9,366,545	$	615,679,177		$	2,521,074	$	627,566,796
Forward Foreign Currency Exchange Contracts	$	—	$	360,958		$	—	$	360,958
Total	$	9,366,545	$	616,040,135		$	2,521,074	$	627,927,754
Liability Description
Forward Foreign Currency Exchange Contracts	$	—	$	(582	)	$	—	$	(582	)
Total	$	—	$	(582	)	$	—	$	(582	)

* None of the unobservable inputs for Level 3 assets, individually or collectively, had a material impact on the Trust.

38

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Notes to Financial Statements — continued

Level 3 investments at the beginning and/or end of the period in relation to net assets were not significant and accordingly, a reconciliation of Level 3 assets for the year ended October 31, 2021 is not presented.

12  Risks and Uncertainties

Risks Associated with Foreign Investments

Foreign investments can be adversely affected by political, economic and market developments abroad, including the imposition of economic and other sanctions by the United States or another country. There may be less publicly available information about foreign issuers because they may not be subject to reporting practices, requirements or regulations comparable to those to which United States companies are subject. Foreign markets may be smaller, less liquid and more volatile than the major markets in the United States. Trading in foreign markets typically involves higher expense than trading in the United States. The Trust may have difficulties enforcing its legal or contractual rights in a foreign country. Securities that trade or are denominated in currencies other than the U.S. dollar may be adversely affected by fluctuations in currency exchange rates.

Credit Risk

The Trust invests primarily in below investment grade floating-rate loans, which are considered speculative because of the credit risk of their issuers. Changes in economic conditions or other circumstances are more likely to reduce the capacity of issuers of these securities to make principal and interest payments. Such companies are more likely to default on their payments of interest and principal owed than issuers of investment grade bonds. An economic downturn generally leads to a higher non-payment rate, and a loan or other debt obligation may lose significant value before a default occurs. Lower rated investments also may be subject to greater price volatility than higher rated investments. Moreover, the specific collateral used to secure a loan may decline in value or become illiquid, which would adversely affect the loan’s value.

LIBOR Transition Risk

Certain instruments held by the Trust may pay an interest rate based on the London Interbank Offered Rate (“LIBOR”), which is the average offered rate for various maturities of short-term loans between certain major international banks. LIBOR is used throughout global banking and financial industries to determine interest rates for a variety of financial instruments (such as debt instruments and derivatives) and borrowing arrangements. The ICE Benchmark Administration Limited, the administrator of LIBOR, is expected to cease publishing certain LIBOR settings on December 31, 2021, and the remaining LIBOR settings on June 30, 2023. Although the transition process away from LIBOR has become increasingly well-defined in advance of the anticipated discontinuation, the impact on certain debt securities, derivatives and other financial instruments that utilize LIBOR remains uncertain. The phase-out of LIBOR may result in, among other things, increased volatility or illiquidity in markets for instruments based on LIBOR and changes in the value of such instruments.

Pandemic Risk

An outbreak of respiratory disease caused by a novel coronavirus was first detected in China in late 2019 and subsequently spread internationally. This coronavirus has resulted in closing borders, enhanced health screenings, changes to healthcare service preparation and delivery, quarantines, cancellations, disruptions to supply chains and customer activity, as well as general concern and uncertainty. Health crises caused by outbreaks, such as the coronavirus outbreak, may exacerbate other pre-existing political, social and economic risks and disrupt normal market conditions and operations. The impact of this outbreak has negatively affected the worldwide economy, the economies of individual countries, individual companies, and the market in general, and may continue to do so in significant and unforeseen ways, as may other epidemics and pandemics that may arise in the future. Any such

impact could adversely affect the Trust’s performance, or the performance of the securities in which the Trust invests.

13  Additional Information

On August 27, 2020, the Trust’s Board of Trustees (the “Board”) received a shareholder demand letter from counsel to Saba Capital Master Fund, Ltd., a hedge fund (“Saba”). Saba also filed claims against the Trust in a lawsuit in Suffolk County Superior Court in Massachusetts asserting breach of contract and fiduciary duty by the Trust and certain of its affiliates, the Trust’s adviser, and the Board, following the implementation by the Trust of by-law amendments that (i) require trustee nominees in contested elections to obtain affirmative votes of a majority of eligible shares in order to be elected and (ii) establish certain requirements related to shares obtained in “control share” acquisitions. With respect to the Trust, Saba seeks rescission of these by-law provisions and certain related relief. On March 31, 2021, the court allowed in part and denied in part a motion to dismiss Saba’s claims.

39

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Report of Independent Registered Public Accounting Firm

To the Trustees and Shareholders of Eaton Vance Senior Floating-Rate Trust:

Opinion on the Financial Statements and Financial Highlights

We have audited the accompanying statement of assets and liabilities of Eaton Vance Senior Floating-Rate Trust (the “Trust”), including the portfolio of investments, as of October 31, 2021, the related statements of operations and cash flows for the year then ended, the statements of changes in net assets for each of the two years in the period then ended, the financial highlights for each of the five years in the period then ended, and the related notes. In our opinion, the financial statements and financial highlights present fairly, in all material respects, the financial position of the Trust as of October 31, 2021, and the results of its operations and its cash flows for the year then ended, the changes in its net assets for each of the two years in the period then ended, and the financial highlights for each of the five years in the period then ended, in conformity with accounting principles generally accepted in the United States of America.

Basis for Opinion

These financial statements and financial highlights are the responsibility of the Trust’s management. Our responsibility is to express an opinion on the Trust’s financial statements and financial highlights based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Trust in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements and financial highlights are free of material misstatement, whether due to error or fraud. The Trust is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits we are required to obtain an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Trust’s internal control over financial reporting. Accordingly, we express no such opinion.

Our audits included performing procedures to assess the risks of material misstatement of the financial statements and financial highlights, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements and financial highlights. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements and financial highlights. Our procedures included confirmation of securities and senior loans owned as of October 31, 2021, by correspondence with the custodian, brokers and selling or agent banks; when replies were not received from brokers and selling or agent banks, we performed other auditing procedures. We believe that our audits provide a reasonable basis for our opinion.

/s/ Deloitte & Touche LLP

Boston, Massachusetts

December 16, 2021

We have served as the auditor of one or more Eaton Vance investment companies since 1959.

40

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Federal Tax Information (Unaudited)

The Form 1099-DIV you receive in February 2022 will show the tax status of all distributions paid to your account in calendar year 2021. Shareholders are advised to consult their own tax adviser with respect to the tax consequences of their investment in the Trust. As required by the Internal Revenue Code and/or regulations, shareholders must be notified regarding the status of qualified dividend income for individuals and 163(j) interest dividends.

Qualified Dividend Income.  For the fiscal year ended October 31, 2021, the Trust designates approximately $432,046, or up to the maximum amount of such dividends allowable pursuant to the Internal Revenue Code, as qualified dividend income eligible for the reduced tax rate of 15%.

163(j) Interest Dividends.  For the fiscal year ended October 31, 2021, the Fund designates 89.74% of distributions from net investment income as a 163(j) interest dividend.

41

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Annual Meeting of Shareholders (Unaudited)

The Trust held its Annual Meeting of Shareholders on September 10, 2021. The following actions were taken by the shareholders.

Proposal 1a:  The election of Keith Quinton, Marcus L. Smith and Susan J. Sutherland as Class Ill Trustees of the Trust, each for a three-year term ending in 2024.

The following votes were cast by the Trust’s common and APS shareholders, voting together as a single class:

Nominees for Trustee	Number of Shares
	For		Withheld
Keith Quinton		23,071,561		7,109,918
Marcus L. Smith		22,993,072		7,188,407
Susan J. Sutherland		23,036,513		7,144,966

Proposal 1b:  The election of Helen Frame Peters as a Class Ill Trustee of the Trust, for a three-year term ending in 2024.

The following votes were cast by the Trust’s APS shareholders, voting separately as a single class:

	Number of Shares
Nominee for Trustee	For		Withheld
Helen Frame Peters		869		2,111

42

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Dividend Reinvestment Plan

The Trust offers a dividend reinvestment plan (Plan) pursuant to which shareholders may elect to have distributions automatically reinvested in common shares (Shares) of the Trust. You may elect to participate in the Plan by completing the Dividend Reinvestment Plan Application Form. If you do not participate, you will receive all distributions in cash paid by check mailed directly to you by American Stock Transfer & Trust Company, LLC (AST) as dividend paying agent. On the distribution payment date, if the NAV per Share is equal to or less than the market price per Share plus estimated brokerage commissions, then new Shares will be issued. The number of Shares shall be determined by the greater of the NAV per Share or 95% of the market price. Otherwise, Shares generally will be purchased on the open market by AST, the Plan agent (Agent). Distributions subject to income tax (if any) are taxable whether or not Shares are reinvested.

If your Shares are in the name of a brokerage firm, bank, or other nominee, you can ask the firm or nominee to participate in the Plan on your behalf. If the nominee does not offer the Plan, you will need to request that the Trust’s transfer agent re-register your Shares in your name or you will not be able to participate.

The Agent’s service fee for handling distributions will be paid by the Trust. Plan participants will be charged their pro rata share of brokerage commissions on all open-market purchases.

Plan participants may withdraw from the Plan at any time by writing to the Agent at the address noted on the following page. If you withdraw, you will receive Shares in your name for all Shares credited to your account under the Plan. If a participant elects by written notice to the Agent to sell part or all of his or her Shares and remit the proceeds, the Agent is authorized to deduct a $5.00 fee plus brokerage commissions from the proceeds.

If you wish to participate in the Plan and your Shares are held in your own name, you may complete the form on the following page and deliver it to the Agent. Any inquiries regarding the Plan can be directed to the Agent at 1-866-439-6787.

43

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Application for Participation in Dividend Reinvestment Plan

This form is for shareholders who hold their common shares in their own names. If your common shares are held in the name of a brokerage firm, bank, or other nominee, you should contact your nominee to see if it will participate in the Plan on your behalf. If you wish to participate in the Plan, but your brokerage firm, bank, or nominee is unable to participate on your behalf, you should request that your common shares be re-registered in your own name which will enable your participation in the Plan.

The following authorization and appointment is given with the understanding that I may terminate it at any time by terminating my participation in the Plan as provided in the terms and conditions of the Plan.

Please print exact name on account

Shareholder signature                                                          Date

Shareholder signature                                                          Date

Please sign exactly as your common shares are registered. All persons whose names appear on the share certificate must sign.

YOU SHOULD NOT RETURN THIS FORM IF YOU WISH TO RECEIVE YOUR DISTRIBUTIONS IN CASH. THIS IS NOT A PROXY.

This authorization form, when signed, should be mailed to the following address:

Eaton Vance Senior Floating-Rate Trust

c/o American Stock Transfer & Trust Company, LLC

P.O. Box 922

Wall Street Station

New York, NY 10269-0560

44

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Management and Organization

Fund Management.  The Trustees of Eaton Vance Senior Floating-Rate Trust (the Trust) are responsible for the overall management and supervision of the Trust’s affairs. The Trustees and officers of the Trust are listed below. Except as indicated, each individual has held the office shown or other offices in the same company for the last five years. The “Noninterested Trustees” consist of those Trustees who are not “interested persons” of the Trust, as that term is defined under the 1940 Act. The business address of each Trustee and officer is Two International Place, Boston, Massachusetts 02110. As used below, “EVC” refers to Eaton Vance Corp., “EV” refers to EV LLC, “EVM” refers to Eaton Vance Management, “BMR” refers to Boston Management and Research and “EVD” refers to Eaton Vance Distributors, Inc. EV is the trustee of each of EVM and BMR. Effective March 1, 2021, each of EVM, BMR, EVD and EV are indirect, wholly owned subsidiaries of Morgan Stanley. Each officer affiliated with EVM may hold a position with other EVM affiliates that is comparable to his or her position with EVM listed below. Each Trustee oversees 138 portfolios (with the exception of Messrs. Faust and Wennerholm and Ms. Frost who oversee 137 portfolios) in the Eaton Vance Complex (including all master and feeder funds in a master feeder structure). Each officer serves as an officer of certain other Eaton Vance funds.

Name and Year of Birth	Trust Position(s)	Term Expiring. Trustee Since(1)	Principal Occupation(s) and Other Directorships During Past Five Years and Other Relevant Experience
Interested Trustee
Thomas E. Faust Jr. 1958	Class II Trustee	Until 2023. Trustee since 2007.	Chairman of Morgan Stanley Investment Management, Inc. (MSIM), member of the Board of Managers and President of EV, Chief Executive Officer of EVM and BMR, and Director of EVD. Formerly, Chairman, Chief Executive Officer and President of EVC. Trustee and/or officer of 137 registered investment companies. Mr. Faust is an interested person because of his positions with MSIM, BMR, EVM, EVD, and EV, which are affiliates of the Trust, and his former position with EVC, which was an affiliate of the Trust prior to March 1, 2021. Other Directorships in the Last Five Years. Formerly, Director of EVC (2007-2021) and Hexavest Inc. (investment management firm) (2012-2021).
Noninterested Trustees
Mark R. Fetting 1954	Class II Trustee	Until 2023. Trustee since 2016.	Private investor. Formerly held various positions at Legg Mason, Inc. (investment management firm) (2000-2012), including President, Chief Executive Officer, Director and Chairman (2008-2012), Senior Executive Vice President (2004-2008) and Executive Vice President (2001-2004). Formerly, President of Legg Mason family of funds (2001-2008). Formerly, Division President and Senior Officer of Prudential Financial Group, Inc. and related companies (investment management firm) (1991-2000). Other Directorships in the Last Five Years. None.
Cynthia E. Frost 1961	Class I Trustee	Until 2022. Trustee since 2014.	Private investor. Formerly, Chief Investment Officer of Brown University (university endowment) (2000-2012). Formerly, Portfolio Strategist for Duke Management Company (university endowment manager) (1995-2000). Formerly, Managing Director, Cambridge Associates (investment consulting company) (1989-1995). Formerly, Consultant, Bain and Company (management consulting firm) (1987-1989). Formerly, Senior Equity Analyst, BA Investment Management Company (1983-1985). Other Directorships in the Last Five Years. None.
George J. Gorman 1952	Chairperson of the Board and Class II Trustee(2)	Until 2023. Chairperson of the Board since 2021 and Trustee since 2014.	Principal at George J. Gorman LLC (consulting firm). Formerly, Senior Partner at Ernst & Young LLP (a registered public accounting firm) (1974-2009). Other Directorships in the Last Five Years. None.
Valerie A. Mosley 1960	Class I Trustee	Until 2022. Trustee since 2014.	Chairwoman and Chief Executive Officer of Valmo Ventures (a consulting and investment firm). Founder of Upward Wealth, Inc., dba BrightUP, a fintech platform. Formerly, Partner and Senior Vice President, Portfolio Manager and Investment Strategist at Wellington Management Company, LLP (investment management firm) (1992-2012). Formerly, Chief Investment Officer, PG Corbin Asset Management (1990-1992). Formerly worked in institutional corporate bond sales at Kidder Peabody (1986-1990). Other Directorships in the Last Five Years. Director of DraftKings, Inc. (digital sports entertainment and gaming company) (since September 2020). Director of Groupon, Inc. (e-commerce provider) (since April 2020). Director of Envestnet, Inc. (provider of intelligent systems for wealth management and financial wellness) (since 2018). Formerly, Director of Dynex Capital, Inc. (mortgage REIT) (2013-2020).

45

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Management and Organization — continued

Name and Year of Birth	Trust Position(s)	Term Expiring. Trustee Since(1)	Principal Occupation(s) and Other Directorships During Past Five Years and Other Relevant Experience
Noninterested Trustees (continued)
William H. Park 1947	Class II Trustee	Until 2023. Trustee since 2003.	Private investor. Formerly, Consultant (management and transactional) (2012-2014). Formerly, Chief Financial Officer, Aveon Group L.P. (investment management firm) (2010-2011). Formerly, Vice Chairman, Commercial Industrial Finance Corp. (specialty finance company) (2006-2010). Formerly, President and Chief Executive Officer, Prizm Capital Management, LLC (investment management firm) (2002-2005). Formerly, Executive Vice President and Chief Financial Officer, United Asset Management Corporation (investment management firm) (1982-2001). Formerly, Senior Manager, Price Waterhouse (now PricewaterhouseCoopers) (a registered public accounting firm) (1972-1981). Other Directorships in the Last Five Years. None.
Helen Frame Peters 1948	Class III Trustee(2)	Until 2024. Trustee since 2008.	Professor of Finance, Carroll School of Management, Boston College. Formerly, Dean, Carroll School of Management, Boston College (2000-2002). Formerly, Chief Investment Officer, Fixed Income, Scudder Kemper Investments (investment management firm) (1998-1999). Formerly, Chief Investment Officer, Equity and Fixed Income, Colonial Management Associates (investment management firm) (1991-1998). Other Directorships in the Last Five Years. None.
Keith Quinton 1958	Class III Trustee	Until 2024. Trustee since 2018.	Private investor, researcher and lecturer. Formerly, Independent Investment Committee Member at New Hampshire Retirement System (2017-2021). Formerly, Portfolio Manager and Senior Quantitative Analyst at Fidelity Investments (investment management firm) (2001-2014). Other Directorships in the Last Five Years. Formerly, Director (2016-2021) and Chairman (2019-2021) of New Hampshire Municipal Bond Bank.
Marcus L. Smith 1966	Class III Trustee	Until 2024. Trustee since 2018.	Private investor. Formerly, Portfolio Manager at MFS Investment Management (investment management firm) (1994-2017). Other Directorships in the Last Five Years. Director of First Industrial Realty Trust, Inc. (an industrial REIT) (since 2021). Director of MSCI Inc. (global provider of investment decision support tools) (since 2017). Formerly, Director of DCT Industrial Trust Inc. (logistics real estate company) (2017-2018).
Susan J. Sutherland 1957	Class III Trustee	Until 2024. Trustee since 2015.	Private investor. Director of Ascot Group Limited and certain of its subsidiaries (insurance and reinsurance) (since 2017). Formerly, Director of Hagerty Holding Corp. (insurance) (2015-2018) and Montpelier Re Holdings Ltd. (insurance and reinsurance) (2013-2015). Formerly, Associate, Counsel and Partner at Skadden, Arps, Slate, Meagher & Flom LLP (law firm) (1982-2013). Other Directorships in the Last Five Years. Director of Kairos Acquisition Corp. (insurance/InsurTech acquisition company) (since 2021).
Scott E. Wennerholm 1959	Class I Trustee	Until 2022. Trustee since 2016.	Private investor. Formerly, Trustee at Wheelock College (postsecondary institution) (2012-2018). Formerly, Consultant at GF Parish Group (executive recruiting firm) (2016-2017). Formerly, Chief Operating Officer and Executive Vice President at BNY Mellon Asset Management (investment management firm) (2005-2011). Formerly, Chief Operating Officer and Chief Financial Officer at Natixis Global Asset Management (investment management firm) (1997-2004). Formerly, Vice President at Fidelity Investments Institutional Services (investment management firm) (1994-1997). Other Directorships in the Last Five Years. None.

Name and Year of Birth	Trust Position(s)	Officer Since(3)	Principal Occupation(s) During Past Five Years
Principal Officers who are not Trustees
Eric A. Stein 1980	President	2020	Vice President and Chief Investment Officer, Fixed Income of EVM and BMR. Prior to November 1, 2020, Mr. Stein was a co-Director of Eaton Vance’s Global Income Investments. Also Vice President of Calvert Research and Management (“CRM”).
Deidre E. Walsh 1971	Vice President and Chief Legal Officer	2009	Vice President of EVM and BMR. Also Vice President of CRM.

46

Eaton Vance

Senior Floating-Rate Trust

October 31, 2021

Management and Organization — continued

Name and Year of Birth	Trust Position(s)	Officer Since(3)	Principal Occupation(s) During Past Five Years
Principal Officers who are not Trustees (continued)
James F. Kirchner 1967	Treasurer	2007	Vice President of EVM and BMR. Also Vice President of CRM.
Kimberly M. Roessiger 1985	Secretary	2021	Vice President of EVM and BMR.
Richard F. Froio 1968	Chief Compliance Officer	2017	Vice President of EVM and BMR since 2017. Formerly, Deputy Chief Compliance Officer (Adviser/Funds) and Chief Compliance Officer (Distribution) at PIMCO (2012-2017) and Managing Director at BlackRock/Barclays Global Investors (2009-2012).

⁽¹⁾  Year first appointed to serve as Trustee for a fund in the Eaton Vance family of funds. Each Trustee has served continuously since appointment unless indicated otherwise.

⁽²⁾  APS Trustee.

⁽³⁾  Year first elected to serve as officer of a fund in the Eaton Vance family of funds when the officer has served continuously. Otherwise, year of most recent election as an officer of a fund in the Eaton Vance family of funds. Titles may have changed since initial election. Each officer serves until his or her successor is elected.

47

Eaton Vance Funds

Privacy Notice April 2021

FACTS	WHAT DOES EATON VANCE DO WITH YOUR PERSONAL INFORMATION?
Why?	Financial companies choose how they share your personal information. Federal law gives consumers the right to limit some but not all sharing. Federal law also requires us to tell you how we collect, share, and protect your personal information. Please read this notice carefully to understand what we do.
What?	The types of personal information we collect and share depend on the product or service you have with us. This information can include: ∎   Social Security number and income ∎   investment experience and risk tolerance ∎   checking account number and wire transfer instructions
How?	All financial companies need to share customers’ personal information to run their everyday business. In the section below, we list the reasons financial companies can share their customers’ personal information; the reasons Eaton Vance chooses to share; and whether you can limit this sharing.

Reasons we can share your personal information	Does Eaton Vance share?	Can you limit this sharing?
For our everyday business purposes — such as to process your transactions, maintain your account(s), respond to court orders and legal investigations, or report to credit bureaus	Yes	No
For our marketing purposes — to offer our products and services to you	Yes	No
For joint marketing with other financial companies	No	We don’t share
For our investment management affiliates’ everyday business purposes — information about your transactions, experiences, and creditworthiness	Yes	Yes
For our affiliates’ everyday business purposes — information about your transactions and experiences	Yes	No
For our affiliates’ everyday business purposes — information about your creditworthiness	No	We don’t share
For our investment management affiliates to market to you	Yes	Yes
For our affiliates to market to you	No	We don’t share
For nonaffiliates to market to you	No	We don’t share

To limit our sharing	Call toll-free 1-800-262-1122 or email: EVPrivacy@eatonvance.com Please note: If you are a new customer, we can begin sharing your information 30 days from the date we sent this notice. When you are no longer our customer, we continue to share your information as described in this notice. However, you can contact us at any time to limit our sharing.
Questions?	Call toll-free 1-800-262-1122 or email: EVPrivacy@eatonvance.com

48

Eaton Vance Funds

Privacy Notice — continued April 2021

Page 2

Who we are
Who is providing this notice?	Eaton Vance Management, Eaton Vance Distributors, Inc., Eaton Vance Trust Company, Eaton Vance Management (International) Limited, Eaton Vance Advisers International Ltd., Eaton Vance Global Advisors Limited, Eaton Vance Management’s Real Estate Investment Group, Boston Management and Research, Calvert Research and Management, Eaton Vance and Calvert Fund Families and our investment advisory affiliates (“Eaton Vance”) (see Investment Management Affiliates definition below)
What we do
How does Eaton Vance protect my personal information?	To protect your personal information from unauthorized access and use, we use security measures that comply with federal law. These measures include computer safeguards and secured files and buildings. We have policies governing the proper handling of customer information by personnel and requiring third parties that provide support to adhere to appropriate security standards with respect to such information.
How does Eaton Vance collect my personal information?	We collect your personal information, for example, when you ∎   open an account or make deposits or withdrawals from your account ∎   buy securities from us or make a wire transfer ∎   give us your contact information We also collect your personal information from others, such as credit bureaus, affiliates, or other companies.
Why can’t I limit all sharing?	Federal law gives you the right to limit only ∎   sharing for affiliates’ everyday business purposes — information about your creditworthiness ∎   affiliates from using your information to market to you ∎   sharing for nonaffiliates to market to you State laws and individual companies may give you additional rights to limit sharing. See below for more on your rights under state law.
Definitions
Investment Management Affiliates	Eaton Vance Investment Management Affiliates include registered investment advisers, registered broker-dealers, and registered and unregistered funds. Investment Management Affiliates does not include entities associated with Morgan Stanley Wealth Management, such as Morgan Stanley Smith Barney LLC and Morgan Stanley & Co.
Affiliates	Companies related by common ownership or control. They can be financial and nonfinancial companies. ∎   Our affiliates include companies with a Morgan Stanley name and financial companies such as Morgan Stanley Smith Barney LLC and Morgan Stanley & Co.
Nonaffiliates	Companies not related by common ownership or control. They can be financial and nonfinancial companies. ∎   Eaton Vance does not share with nonaffiliates so they can market to you.
Joint marketing	A formal agreement between nonaffiliated financial companies that together market financial products or services to you. ∎   Eaton Vance doesn’t jointly market.
Other important information
Vermont: Except as permitted by law, we will not share personal information we collect about Vermont residents with Nonaffiliates unless you provide us with your written consent to share such information. California: Except as permitted by law, we will not share personal information we collect about California residents with Nonaffiliates and we will limit sharing such personal information with our Affiliates to comply with California privacy laws that apply to us.

49

Eaton Vance Funds

IMPORTANT NOTICES

Delivery of Shareholder Documents.  The Securities and Exchange Commission (SEC) permits funds to deliver only one copy of shareholder documents, including prospectuses, proxy statements and shareholder reports, to fund investors with multiple accounts at the same residential or post office box address. This practice is often called “householding” and it helps eliminate duplicate mailings to shareholders. American Stock Transfer & Trust Company, LLC (“AST”), the closed-end funds transfer agent, or your financial intermediary, may household the mailing of your documents indefinitely unless you instruct AST, or your financial intermediary, otherwise. If you would prefer that your Eaton Vance documents not be householded, please contact AST or your financial intermediary. Your instructions that householding not apply to delivery of your Eaton Vance documents will typically be effective within 30 days of receipt by AST or your financial intermediary.

Portfolio Holdings.  Each Eaton Vance Fund and its underlying Portfolio(s) (if applicable) files a schedule of portfolio holdings on Part F to Form N-PORT with the SEC. Certain information filed on Form N-PORT may be viewed on the Eaton Vance website at www.eatonvance.com, by calling Eaton Vance at 1-800-262-1122 or in the EDGAR database on the SEC’s website at www.sec.gov.

Proxy Voting.  From time to time, funds are required to vote proxies related to the securities held by the funds. The Eaton Vance Funds or their underlying Portfolios (if applicable) vote proxies according to a set of policies and procedures approved by the Funds’ and Portfolios’ Boards. You may obtain a description of these policies and procedures and information on how the Funds or Portfolios voted proxies relating to portfolio securities during the most recent 12-month period ended June 30, without charge, upon request, by calling 1-800-262-1122 and by accessing the SEC’s website at www.sec.gov.

Share Repurchase Program.  The Fund’s Board of Trustees has approved a share repurchase program authorizing the Fund to repurchase up to 10% of its common shares outstanding as of the last day of the prior calendar year in open-market transactions at a discount to net asset value. The repurchase program does not obligate the Fund to purchase a specific amount of shares. The Fund’s repurchase activity, including the number of shares purchased, average price and average discount to net asset value, is disclosed in the Fund’s annual and semi-annual reports to shareholders.

Additional Notice to Shareholders.  If applicable, a Fund may also redeem or purchase its outstanding preferred shares in order to maintain compliance with regulatory requirements, borrowing or rating agency requirements or for other purposes as it deems appropriate or necessary.

Closed-End Fund Information.  Eaton Vance closed-end funds make fund performance data and certain information about portfolio characteristics available on the Eaton Vance website shortly after the end of each month. Other information about the funds is available on the website. The funds’ net asset value per share is readily accessible on the Eaton Vance website. Portfolio holdings for the most recent month-end are also posted to the website approximately 30 days following the end of the month. This information is available at www.eatonvance.com on the fund information pages under “Individual Investors — Closed-End Funds”.

50

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Investment Adviser and Administrator

Eaton Vance Management

Two International Place

Boston, MA 02110

Custodian

State Street Bank and Trust Company

State Street Financial Center, One Lincoln Street

Boston, MA 02111

Transfer Agent

American Stock Transfer & Trust Company, LLC

6201 15^th Avenue

Brooklyn, NY 11219

Independent Registered Public Accounting Firm

Deloitte & Touche LLP

200 Berkeley Street

Boston, MA 02116-5022

Fund Offices

Two International Place

Boston, MA 02110

2025    10.31.21

Item 2. Code of Ethics

The registrant (sometimes referred to as the “Fund”) has adopted a code of ethics applicable to its Principal Executive Officer, Principal Financial Officer and Principal Accounting Officer. The registrant undertakes to provide a copy of such code of ethics to any person upon request, without charge, by calling 1-800-262-1122. The registrant has not amended the code of ethics as described in Form N-CSR during the period covered by this report. The registrant has not granted any waiver, including an implicit waiver, from a provision of the code of ethics as described in Form N-CSR during the period covered by this report.

Item 3. Audit Committee Financial Expert

The registrant’s Board of Trustees (the “Board”) has designated George J. Gorman, William H. Park and Scott E. Wennerholm, each an independent trustee, as audit committee financial experts. Mr. Gorman is a certified public accountant who is the Principal at George J. Gorman LLC (a consulting firm). Previously, Mr. Gorman served in various capacities at Ernst & Young LLP (a registered public accounting firm), including as Senior Partner. Mr. Gorman also has experience serving as an independent trustee and audit committee financial

expert of other mutual fund complexes. Mr. Park is a certified public accountant who is a private investor. Previously, he served as a consultant, as the Chief Financial Officer of Aveon Group, L.P. (an investment management firm), as the Vice Chairman of Commercial Industrial Finance Corp. (specialty finance company), as President and Chief Executive Officer of Prizm Capital Management, LLC (investment management firm), as Executive Vice President and Chief Financial Officer of United Asset Management Corporation (an institutional investment management firm) and as a Senior Manager at Price Waterhouse (now PricewaterhouseCoopers) (a registered public accounting firm). Mr. Wennerholm is a private investor. Previously, Mr. Wennerholm served as a Trustee at Wheelock College (postsecondary institution), as a Consultant at GF Parish Group (executive recruiting firm), Chief Operating Officer and Executive Vice President at BNY Mellon Asset Management (investment management firm), Chief Operating Officer and Chief Financial Officer at Natixis Global Asset Management (investment management firm), and Vice President at Fidelity Investments Institutional Services (investment management firm).

Item 4. Principal Accountant Fees and Services

(a)-(d)

The following table presents the aggregate fees billed to the registrant for the registrant’s fiscal years ended October 31, 2020 and October 31, 2021 by the registrant’s principal accountant, Deloitte & Touche LLP (“D&T”), for professional services rendered for the audit of the registrant’s annual financial statements and fees billed for other services rendered by D&T during such periods.

Fiscal Years Ended	10/31/20		10/31/21
Audit Fees	$	99,888	$	96,894
Audit-Related Fees(1)	$	0	$	0
Tax Fees(2)	$	13,641	$	13,991
All Other Fees(3)	$	0	$	0
Total	$	113,529	$	110,885

⁽¹⁾  Audit-related fees consist of the aggregate fees billed for assurance and related services that are reasonably related to the performance of the audit of the registrant’s financial statements and are not reported under the category of audit fees and specifically include fees for the performance of certain agreed-upon procedures relating to the registrant’s auction preferred shares.

⁽²⁾  Tax fees consist of the aggregate fees billed for professional services rendered by the principal accountant relating to tax compliance, tax advice, and tax planning and specifically include fees for tax return preparation and other related tax compliance/planning matters.

⁽³⁾  All other fees consist of the aggregate fees billed for products and services provided by the registrant’s principal accountant other than audit, audit-related, and tax services.

(e)(1) The registrant’s audit committee has adopted policies and procedures relating to the pre-approval of services provided by the registrant’s principal accountant (the “Pre-Approval Policies”). The Pre-Approval Policies establish a framework intended to assist the audit committee in the proper discharge of its pre-approval responsibilities. As a general matter, the Pre-Approval Policies (i) specify certain types of audit, audit-related, tax, and other services determined to be pre-approved by the audit committee; and (ii) delineate specific procedures governing the mechanics of the pre-approval process, including the approval and monitoring of audit and non-audit service fees. Unless a service is specifically pre-approved under the Pre-Approval Policies, it must be separately pre-approved by the Audit Committee.

The Pre-Approval Policies and the types of audit and non-audit services pre-approved therein must be reviewed and ratified by the registrant’s audit committee at least annually. The registrant’s audit committee maintains full responsibility for the appointment, compensation, and oversight of the work of the registrant’s principal accountant.

(e)(2) No services described in paragraphs (b)-(d) above were approved by the registrant’s audit committee pursuant to the “de minimis exception” set forth in Rule 2-01 (c)(7)(i)(C) of Regulation S-X.

(f) Not applicable.

(g) The following table presents (i) the aggregate non-audit fees (i.e., fees for audit-related, tax, and other services) billed to the registrant by D&T for the registrant’s fiscal years ended October 31, 2020 and October 31, 2021; and (ii) the aggregate non-audit fees (i.e., fees for audit-related, tax, and other services) billed to the Eaton Vance organization by D&T for the same time periods.

Fiscal Years Ended	10/31/20		10/31/21
Registrant	$	13,641	$	13,991
Eaton Vance(1)	$	51,800	$	51,800

⁽¹⁾  Certain subsidiaries of Morgan Stanley provide ongoing services to the registrant.

(h) The registrant’s audit committee has considered whether the provision by the registrant’s principal accountant of non-audit services to the registrant’s investment adviser and any entity controlling, controlled by, or under common control with the adviser that provides ongoing services to the registrant that were not pre-approved pursuant to Rule 2-01(c)(7)(ii) of Regulation S-X is compatible with maintaining the principal accountant’s independence.

Item 5. Audit Committee of Listed Registrants

The registrant has a separately-designated standing audit committee established in accordance with Section 3(a)(58)(A) of the Securities and Exchange Act of 1934, as amended. George J. Gorman, William H. Park, Helen Frame Peters and Scott E. Wennerholm (Chair) are the members of the registrant’s audit committee.

Item 6. Schedule of Investments

Please see schedule of investments contained in the Report to Stockholders included under Item 1 of this Form N-CSR.

Item 7. Disclosure of Proxy Voting Policies and Procedures for Closed-End Management Investment Companies

The Board of the Fund has adopted a proxy voting policy and procedure (the “Fund Policy”), pursuant to which the trustees have delegated proxy voting responsibility to the Fund’s investment adviser and adopted the investment adviser’s proxy voting policies and procedures (the “Policies”) which are described below. The trustees will review the Policies annually. In the event that a conflict of interest arises between the Fund’s shareholders and the investment adviser, the administrator, or any of their affiliates or any affiliate of the Fund, the investment adviser will generally refrain from voting the proxies related to the companies giving rise to such conflict until it consults with the Board, or any committee, sub-committee or group of independent trustees identified by the Board, which will instruct the investment adviser on the appropriate course of action. If the Board Members are unable to meet and the failure to vote a proxy would have a material adverse impact on the Fund, the investment adviser may vote such proxy, provided that it discloses the existence of the material conflict to the Chairperson of the Fund’s Board as soon as practicable and to the Board at its next meeting.

The Policies are designed to promote accountability of a company’s management to its shareholders and to align the interests of management with those shareholders. An independent proxy voting service (“Agent”), currently Institutional Shareholder Services, Inc., has been retained to assist in the voting of proxies through the provision of vote analysis, implementation and recordkeeping and disclosure services. The investment adviser will generally vote proxies through the Agent. The Agent is required to vote all proxies in accordance with customized proxy voting guidelines (the “Guidelines”) and/or refer them back to the investment adviser pursuant to the Policies.

The Agent is required to establish and maintain adequate internal controls and policies in connection with the provision of proxy voting services, including methods to reasonably ensure that its analysis and recommendations are not influenced by a conflict of interest. The Guidelines include voting guidelines for matters relating to, among other things, the election of directors, approval of independent auditors, executive compensation, corporate structure and anti-takeover defenses. The investment adviser may cause the Fund to abstain from voting from time to time where it determines that the costs associated with voting a proxy outweigh the benefits derived from exercising the right to vote or it is unable to access or access timely ballots or other proxy information, among other stated reasons. The Agent will refer Fund proxies to the investment adviser for instructions under circumstances where, among others: (1) the application of the Guidelines is unclear; (2) a particular proxy question is not covered by the Guidelines; or (3) the Guidelines require input from the investment adviser. When a proxy voting issue has been referred to the investment adviser, the analyst (or portfolio manager if applicable) covering the company subject to the proxy proposal determines the final vote (or decision not to vote) and the investment adviser’s Proxy Administrator (described below) instructs the Agent to vote accordingly for securities held by the Fund. Where more than one analyst covers a particular company and the recommendations of such analysts voting a proposal conflict, the investment adviser’s Global Proxy Group (described below) will review such recommendations and any other available information related to the proposal and determine the manner in which it should be voted, which may result in different recommendations for the Fund that may differ from other clients of the investment adviser.

The investment adviser has appointed a Proxy Administrator to assist in the coordination of the voting of client proxies (including the Fund’s) in accordance with the Guidelines and the Policies. The investment adviser and its affiliates have also established a Global Proxy Group. The Global Proxy Group develops the investment adviser’s positions on all major corporate issues, creates the Guidelines and oversees the proxy voting process. The Proxy Administrator maintains a record of all proxy questions that have been referred by the Agent, all applicable recommendations, analysis and research received and any resolution of the matter. Before instructing the Agent to vote contrary to the Guidelines or the recommendation of the Agent, the Proxy Administrator will provide the Global Proxy Group with the Agent’s recommendation for the proposal along with any other relevant materials, including the basis for the analyst’s recommendation. The Proxy Administrator will then instruct the Agent to vote the proxy in the manner determined by the Global Proxy Group. A similar process will be followed if the Agent has a conflict of interest with respect to a proxy. The investment adviser will report to the Fund’s Board any votes cast contrary to the Guidelines or Agent recommendations, as applicable, no less than annually.

The investment adviser’s Global Proxy Group is responsible for monitoring and resolving possible material conflicts with respect to proxy voting. Because the Guidelines are predetermined and designed to be in the best interests of shareholders, application of the Guidelines to vote client proxies should, in most cases, adequately address any possible conflict of interest. The investment adviser will monitor situations that may result in a conflict of interest between any of its clients and the investment adviser or any of its affiliates by maintaining a list of significant existing and prospective corporate clients. The Proxy Administrator will compare such list

with the names of companies of which he or she has been referred a proxy statement (the “Proxy Companies”). If a company on the list is also a Proxy Company, the Proxy Administrator will report that fact to the Global Proxy Group. If the Proxy Administrator intends to instruct the Agent to vote in a manner inconsistent with the Guidelines, the Global Proxy Group will first determine, in consultation with legal counsel if necessary, whether a material conflict exists. If it is determined that a material conflict exists, the investment adviser will seek instruction on how the proxy should be voted from the Fund’s Board, or any committee or subcommittee identified by the Board. If a matter is referred to the Global Proxy Group, the decision made and basis for the decision will be documented by the Proxy Administrator and/or Global Proxy Group.

Information on how the Fund voted proxies relating to portfolio securities during the most recent 12 month period ended June 30 is available (1) without charge, upon request, by calling 1-800-262-1122, and (2) on the Securities and Exchange Commission’s website at http://www.sec.gov.

Item 8. Portfolio Managers of Closed-End Management Investment Companies

Eaton Vance Management (“EVM” or “Eaton Vance”) is the investment adviser of the Trust. William E. Holt, Catherine C. McDermott, Daniel P. McElaney, Craig P. Russ and Andrew N. Sveen comprise the investment team responsible for the overall and day-to-day management of the Trust’s investments.

Messrs. Holt, McElaney and Sveen and Ms. McDermott are Vice Presidents of EVM and have been portfolio managers of the Trust since March 2019. Mr. Russ is a Vice President of EVM and has been a portfolio manager of the Trust since November 2003. Messrs. Russ and Sveen and Ms. McDermott have managed other Eaton Vance portfolios for more than five years. This information is provided as of the date of filing this report.

The following table shows, as of the Trust’s most recent fiscal year end, the number of accounts each portfolio manager managed in each of the listed categories and the total assets (in millions of dollars) in the accounts managed within each category. The table also shows the number of accounts with respect to which the advisory fee is based on the performance of the account, if any, and the total assets (in millions of dollars) in those accounts.

	Number of All Accounts		Total Assets of All Accounts		Number of Accounts Paying a Performance Fee		Total Assets of Accounts Paying a Performance Fee
William E. Holt
Registered Investment Companies		4	$	1,917.6		0	$	0
Other Pooled Investment Vehicles		0	$	0		0	$	0
Other Accounts		0	$	0		0	$	0
Catherine C. McDermott
Registered Investment Companies		7	$	4,846.7		0	$	0
Other Pooled Investment Vehicles		0	$	0		0	$	0
Other Accounts		0	$	0		0	$	0
Daniel P. McElaney
Registered Investment Companies		4	$	1,917.6		0	$	0
Other Pooled Investment Vehicles		0	$	0		0	$	0
Other Accounts		0	$	0		0	$	0
Craig P. Russ
Registered Investment Companies		10	$	40,565.8		0	$	0

	Number of All Accounts		Total Assets of All Accounts		Number of Accounts Paying a Performance Fee		Total Assets of Accounts Paying a Performance Fee
Other Pooled Investment Vehicles		5	$	5,849.1		0	$	0
Other Accounts		7	$	3,511.9		0	$	0
Andrew N. Sveen
Registered Investment Companies		12	$	41,468.3		0	$	0
Other Pooled Investment Vehicles		0	$	0		0	$	0
Other Accounts		0	$	0		0	$	0

The following table shows the dollar range of Trust shares beneficially owned by each portfolio manager as of the Trust’s most recent fiscal year end.

Portfolio Manager	Dollar Range of Equity Securities Beneficially Owned in the Trust
William E. Holt	None
Catherine C. McDermott	None
Daniel P. McElaney	None
Craig P. Russ	$500,001 - $1,000,000
Andrew N. Sveen	$100,001 - $500,000

Potential for Conflicts of Interest. It is possible that conflicts of interest may arise in connection with a portfolio manager’s management of the Fund’s investments on the one hand and the investments of other accounts for which a portfolio manager is responsible on the other. For example, a portfolio manager may have conflicts of interest in allocating management time, resources and investment opportunities among the Fund and other accounts he or she advises. In addition, due to differences in the investment strategies or restrictions between the Fund and the other accounts, the portfolio manager may take action with respect to another account that differs from the action taken with respect to the Fund. In some cases, another account managed by a portfolio manager may compensate the investment adviser based on the performance of the securities held by that account. The existence of such a performance based fee may create additional conflicts of interest for the portfolio manager in the allocation of management time, resources and investment opportunities. Whenever conflicts of interest arise, the portfolio manager will endeavor to exercise his or her discretion in a manner that he or she believes is equitable to all interested persons. EVM has adopted several policies and procedures designed to address these potential conflicts including a code of ethics and policies that govern the investment adviser’s trading practices, including among other things the aggregation and allocation of trades among clients, brokerage allocations, cross trades and best execution.

Compensation Structure for EVM

Compensation of EVM’s portfolio managers and other investment professionals has the following primary components: (1) a base salary and (2) discretionary variable compensation that is comprised of cash bonus and depending on eligibility, may also include deferred compensation consisting of restricted shares of Morgan Stanley stock and deferred cash that are subject to a fixed vesting and distribution schedule. EVM’s investment professionals also receive certain retirement, insurance and other benefits that are broadly available to EVM’s employees. Compensation of EVM’s investment professionals is reviewed primarily on an annual basis. Cash bonuses and deferred compensation awards, and adjustments in base salary are typically paid or put into effect shortly after the December 31^st fiscal year end of Morgan Stanley.

Method to Determine Compensation. EVM compensates its portfolio managers based on company and team business results, and individual performance, including the scale and complexity of their portfolio responsibilities and the total return performance of managed funds and accounts versus the benchmark(s) stated in the prospectus, as well as an appropriate peer group (as described below). In addition to rankings within peer groups of funds on the basis of absolute performance, consideration may also be given to relative risk-adjusted performance. Risk-adjusted performance measures include, but are not limited to the Sharpe ratio, which uses standard deviation and excess return to determine reward per unit of risk. Fund performance is normally evaluated primarily versus peer groups of funds as determined by Lipper Inc. and/or Morningstar, Inc. When a fund’s peer group as determined by Lipper or Morningstar is deemed by EVM’s management not to provide a fair comparison, performance may instead be evaluated primarily against a custom peer group or market index. In evaluating the performance of a fund and its manager, primary emphasis is normally placed on three-year performance, with secondary consideration of performance over longer and shorter periods. For funds that are tax-managed or otherwise have an objective of after-tax returns, performance is measured net of taxes. For other funds, performance is evaluated on a pre-tax basis. For funds with an investment objective other than total return (such as current income), consideration will also be given to the fund’s success in achieving its objective. For managers responsible for multiple funds and accounts, investment performance is evaluated on an aggregate basis, based on averages or weighted averages among managed funds and accounts. Funds and accounts that have performance-based advisory fees are not accorded disproportionate weightings in measuring aggregate portfolio manager performance.

The compensation of portfolio managers with other job responsibilities (such as heading an investment group or providing analytical support to other portfolios) will include consideration of the scope of such responsibilities and the managers’ performance in meeting them.

EVM seeks to compensate portfolio managers commensurate with their responsibilities and performance, and competitive with other firms within the investment management industry. EVM participates in investment-industry compensation surveys and utilizes survey data as a factor in determining salary and variable compensation levels for portfolio managers and other investment professionals. Salaries and variable compensation are also influenced by the operating performance of EVM and Morgan Stanley. While the salaries of EVM’s portfolio managers are comparatively fixed, variable compensation may fluctuate significantly from year to year, based on changes in company and team performance, manager performance and other factors as described herein. For a high performing portfolio manager, variable compensation may represent a substantial portion of total compensation.

Item 9. Purchases of Equity Securities by Closed-End Management Investment Company and Affiliated Purchasers

No such purchases this period.

Item 10. Submission of Matters to a Vote of Security Holders

No material changes.

Item 11. Controls and Procedures

(a) It is the conclusion of the registrant’s principal executive officer and principal financial officer that the effectiveness of the registrant’s current disclosure controls and procedures (such disclosure controls and procedures having been evaluated within 90 days of the date of this filing) provide reasonable assurance that the information required to be disclosed by the registrant has been recorded, processed, summarized and reported within the time period specified in the Commission’s rules and forms and that the information required to be disclosed by the registrant has been accumulated and communicated to the registrant’s principal executive officer and principal financial officer in order to allow timely decisions regarding required disclosure.

(b) There have been no changes in the registrant’s internal controls over financial reporting during the period covered by this report that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting.

Item 12. Disclosure of Securities Lending Activities for Closed-End Management Investment Companies

No activity to report for the registrant’s most recent fiscal year end.

Item 13. Exhibits

(a)(1)	Registrant’s Code of Ethics – Not applicable (please see Item 2).
(a)(2)(i)	Treasurer’s Section 302 certification.
(a)(2)(ii)	President’s Section 302 certification.
(b)	Combined Section 906 certification.

Signatures

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Eaton Vance Senior Floating-Rate Trust

By:	/s/ Eric A. Stein
	Eric A. Stein
	President
Date:	December 17, 2021

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

By:	/s/ James F. Kirchner
	James F. Kirchner
	Treasurer
Date:	December 17, 2021
By:	/s/ Eric A. Stein
	Eric A. Stein
	President
Date:	December 17, 2021

EX-99.CERT

Eaton Vance Senior Floating-Rate Trust

FORM N-CSR

Exhibit 13(a)(2)(i)

CERTIFICATION

I, James F. Kirchner, certify that:

1. I have reviewed this report on Form N-CSR of Eaton Vance Senior Floating-Rate Trust;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations, changes in net assets, and cash flows (if the financial statements are required to include a statement of cash flows) of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940) and internal control over financial reporting (as defined in Rule 30a-3(d) under the Investment Company Act of 1940) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of a date within 90 days prior to the filing date of this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the period covered by this report that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize, and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: December 17, 2021	/s/ James F. Kirchner
	James F. Kirchner
	Treasurer

Eaton Vance Senior Floating-Rate Trust

FORM N-CSR

Exhibit 13(a)(2)(ii)

CERTIFICATION

I, Eric A. Stein, certify that:

1. I have reviewed this report on Form N-CSR of Eaton Vance Senior Floating-Rate Trust;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations, changes in net assets, and cash flows (if the financial statements are required to include a statement of cash flows) of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940) and internal control over financial reporting (as defined in Rule 30a-3(d) under the Investment Company Act of 1940) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of a date within 90 days prior to the filing date of this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the period covered by this report that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize, and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: December 17, 2021	/s/ Eric A. Stein
	Eric A. Stein
	President

EX-99.906 CERT

Form N-CSR Item 13(b) Exhibit

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

The undersigned hereby certify in their capacity as Treasurer and President, respectively, of Eaton Vance Senior Floating-Rate Trust (the “Trust”), that:

(a) The Annual Report of the Trust on Form N-CSR for the period ended October 31, 2021 (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(b) The information contained in the Report fairly presents, in all material respects, the financial condition and the results of operations of the Trust for such period.

A signed original of this written statement required by section 906 has been provided to the Trust and will be retained by the Trust and furnished to the Securities and Exchange Commission or its staff upon request.

Eaton Vance Senior Floating-Rate Trust

Date: December 17, 2021

/s/ James F. Kirchner

James F. Kirchner

Treasurer

Date: December 17, 2021

/s/ Eric A. Stein

Eric A. Stein

President