Putnam
High Income
Securities Fund

Annual report
8 | 31 | 13

Consider these risks before investing: Lower-rated bonds may offer higher yields in return for more risk. Bond investments are subject to interest-rate risk (the risk of bond prices falling if interest rates rise) and credit risk (the risk of an issuer defaulting on interest or principal payments). Interest-rate risk is greater for longer-term bonds, and credit risk is greater for below-investment-grade bonds. Unlike bonds, funds that invest in bonds have fees and expenses. Bond prices may fall or fail to rise over time for several reasons, including general financial market conditions and factors related to a specific issuer or industry. You can lose money by investing in the fund. The fund’s shares trade on a stock exchange at market prices, which may be lower than the fund’s net asset value.

Message from the Trustees

Dear Fellow Shareholder:

Investors have been digesting a wide array of economic and geopolitical developments in recent months. While economic growth has continued despite the negative impact of the federal budget sequester, the Federal Reserve’s expected tapering of its $85 billion-a-month bond-buying program has prompted greater market volatility, and bond yields have risen substantially.

There is concern that the reduction of Fed purchases will cause long-term interest rates to move higher, running the risk of curtailing the recovery. Already, mortgage rates have jumped and housing market data appear less robust than earlier in the year. Overseas, instability in Egypt and Syria has contributed to higher oil prices, which could undermine the reasonably positive trends in consumer spending. Fortunately, the eurozone posted positive GDP growth in the second calendar quarter after many months of contraction, though the 17-nation currency bloc continues to grapple with significant economic challenges.

While we cannot forecast with precision how economic or geopolitical events will unfold over the coming months, we have confidence that a long-term investment program remains valuable. Putnam’s in-depth fundamental research, active investing, and risk management strategies can serve investors well through changing markets. To address a diverse range of financial goals, Putnam’s investment professionals integrate innovative thinking with traditional and alternative approaches.

We also believe in the importance of relying on the guidance of a professional advisor who can help you develop a financial plan suited to your goals and risk tolerance.

We would like to welcome new shareholders of the fund and to thank you for investing with Putnam. We would also like to extend our thanks to Elizabeth Kennan, who recently retired from the Board of Trustees, for her 20 years of dedicated service.

About the fund

Seeking opportunities from high-yield bonds and convertibles

The average investor may think of bonds as government-sponsored securities that offer relatively low risk and less volatility than the stock market. However, high-yield corporate bonds and convertible securities, the types of investments primarily held by Putnam High Income Securities Fund, are different. Both are issued by companies rather than the government. Moreover, high-yield corporates and convertibles can offer greater returns than other bonds — but also carry a greater potential for risk, such as the risk of corporate default or periodic illiquidity. High-yield bonds are deemed to have less than investment-grade status, which means their issuing companies are considered more likely to default on their debt than more creditworthy companies. High-yield bond prices tend to follow individual companies’ fundamentals as well as interest-rate levels. While lower-rated corporate bonds may carry higher risk, they provide potentially higher levels of yield to compensate investors for that risk.

What sets convertible securities apart is a built-in option that allows the investor to exchange — or convert — the security for a fixed number of shares of common stock of the issuer. Convertible securities pay interest, although frequently at a lower rate than traditional bonds, and the amount of interest does not change as the price of the underlying stock(s) increases or decreases.

Building a portfolio of high-yield bonds and convertible securities requires intensive research and analysis. Putnam’s global equity and credit research analysts conduct rigorous research in an effort to determine the true worth of the issuing company’s business. The fund’s portfolio managers then construct a portfolio that they believe offers the best return potential, while being mindful of risk.

How closed-end funds differ from open-end funds

Closed-end funds and open-end funds share many common characteristics but also have some key differences that you should understand as you consider your portfolio strategies.

More assets at work Open-end funds are subject to ongoing sales and redemptions that can generate transaction costs for long-term shareholders. Closed-end funds, however, are typically fixed pools of capital that do not need to hold cash in connection with sales and redemptions, allowing the funds to keep more assets actively invested.

Traded like stocks Closed-end fund shares are traded on stock exchanges and, as a result, their prices fluctuate because of the influence of several factors.

They have a market price Like an open-end fund, a closed-end fund has a per-share net asset value (NAV). However, closed-end funds also have a “market price” for their shares — which is how much you pay when you buy shares of the fund, and how much you receive when you sell them.

When looking at a closed-end fund’s performance, you will usually see that the NAV and the market price differ. The market price can be influenced by several factors that cause it to vary from the NAV, including fund distributions, changes in supply and demand for the fund’s shares, changing market conditions, and investor perceptions of the fund or its investment manager. A fund’s performance at market price typically differs from its results at NAV.

Data are historical. Past performance does not guarantee future results. More recent returns may be less or more than those shown. Investment return and net asset value will fluctuate, and you may have a gain or a loss when you sell your shares. Performance assumes reinvestment of distributions and does not account for taxes. Fund returns in the bar chart are at NAV. See pages 5 and 11–12 for additional performance information, including fund returns at market price. Index and Lipper results should be compared with fund performance at NAV. Lipper calculates performance differently than the closed-end funds it ranks, due to varying methods for determining a fund’s monthly reinvestment NAV.

* The fund’s blended benchmark is an unmanaged index administered by Putnam Management, 50% of which is the JPMorgan Developed High Yield Index and 50% of which is BofA Merrill Lynch All-Convertibles Speculative Quality Index. The BofA Merrill Lynch All-Convertibles Speculative Quality Index and the JPMorgan Developed High Yield Index were introduced on 12/31/92 and 12/31/94, respectively, which post-date the inception of the fund. The blended benchmark was previously shown as two individual indexes.

Interview with your fund’s portfolio managers

What was the market environment like for high-yield convertibles and bonds during the past 12 months?

Eric: It was a supportive environment for both asset classes. Domestic equities moved higher during most of the period, buoyed by improving U.S. employment and housing data, both of which continued to boost consumer sentiment. The Federal Reserve’s ongoing accommodative monetary policy fueled investors’ upbeat outlook and penchant for yield for the majority of the period. Stocks retreated in June amid concern that the central bank could begin scaling back its stimulative bond-buying program. This hiccup proved short-lived, however, and markets climbed notably higher in July, as the Fed stressed its commitment to its monthly bond purchases, citing that the economy, although improving, still needed its immediate help. After several major equity indexes hit new highs in July, stocks pulled back in August on concerns about potential U.S. military involvement in Syria and the looming U.S. debt ceiling, as well as lingering anxiety about less Fed stimulus.

Rob: Relative to other fixed-income sectors, high-yield bonds performed well, as they were one of the few categories to post solidly positive returns against the backdrop of

*The fund’s blended benchmark is an unmanaged index administered by Putnam Management, 50% of which is the JPMorgan Developed High Yield Index and 50% of which is the BofA Merrill Lynch All-Convertibles Speculative Quality Index.

This comparison shows your fund’s performance in the context of broad market indexes for the 12 months ended 8/31/13. See pages 4 and 11–12 for additional fund performance information. Index descriptions can be found on page 13.

broadly negative performance in investment-grade categories. For example, the Barclays U.S. Aggregate Bond Index — the primary benchmark for taxable investment-grade bonds — returned –2.47% for the past 12 months. Most of the damage to investment-grade bonds occurred in May and June, as investors debated the timing of Fed policy changes. During this time, interest rates rose and yield curves steepened globally. High-yield bonds also declined, hampered more by capital flows and market “technicals” — supply and demand dynamics — than by any breakdown in fundamental support, but fell less than investment-grade securities. As the marketplace adjusted its expectations about when the Fed may begin to wind down quantitative easing, high-yield bonds rallied in July before pulling back modestly and settling into a range in August.

Which sectors and industry groups had the biggest positive influence on the fund’s relative performance?

Rob: On the high-yield convertibles side of the fund, strong security selection in consumer cyclicals, information technology, materials, and communication services were the biggest contributors. Among high-yield bonds, favorable selections in telecommunications, housing, energy, and financials drove the results in that portion of the portfolio.

Which investments were the top contributors to relative performance?

Eric: Among convertible securities, an out-of-benchmark position in diversified

Credit qualities are shown as a percentage of the fund’s net assets as of 8/31/13. A bond rated Baa or higher (Prime-3 or higher, for short-term debt) is considered investment grade. The chart reflects Moody’s ratings; percentages may include bonds or derivatives not rated by Moody’s but rated by Standard & Poor’s (S&P) or, if unrated by S&P, by Fitch ratings, and then included in the closest equivalent Moody’s rating. Ratings may vary over time.

Credit quality includes bonds and represents only the fixed-income portion of the portfolio. Cash and net other assets, if any, represent the market value weights of cash, derivatives, short-term securities, and other unclassified assets in the portfolio. The fund itself has not been rated by an independent rating agency.

financial services giant Citigroup was among the fund’s biggest contributors.

The firm benefited from better-than-expected quarterly profits during the period, as well as a surge in bond-trading revenue. Additionally, investors responded positively when longtime Citigroup executive Michael Corbat replaced Vikram Pandit as CEO in October 2012 and launched a series of initiatives designed to reduce costs and return more capital to shareholders. We sold our position in Citigroup’s convertibles during the period’s first half.

Our holding of a convertible issued by entertainment and communications services provider Virgin Media — which is based in the United Kingdom and is also not in the benchmark — moved sharply higher in February when international cable company Liberty Global announced its intention to acquire the firm. We subsequently sold our Virgin Media investment, believing that the convertible’s elevated price reflected the full value of the proposed acquisition.

Additional contributors in convertibles included automaker General Motors, semiconductor manufacturer Micron Technology, and Liberty Interactive, which operates several digital commerce businesses.

Rob: Travelport, a provider of computerized registration systems to the travel industry,

This table shows the fund’s top 10 individual holdings and the percentage of the fund’s net assets that each represented as of 8/31/13. Short-term holdings and derivatives, if any, are excluded. Holdings may vary over time.

was the top contributor among the fund’s high-yield bond holdings. The company benefited from substantial year-over-year increases in online bookings, and, early in the period, resolved a long-standing dispute with American Airlines.

Telecommunications services provider Sprint Communications also aided relative performance, as its bonds received a boost early in the period when Japanese wireless carrier SoftBank acquired a 70% ownership stake in the company. In addition, Sprint upgraded its 4G network, which has enabled it to gain subscriber market share at the expense of major competitors. We sold our Sprint position during the period.

Additional contributors included Rite Aid, which is one of the country’s largest drug store chains, satellite services company Intelsat, and automotive finance company Ally Financial.

What factors hampered the fund’s relative return?

Eric: From a sector/industry perspective, within the high-yield convertibles part of the portfolio, adverse security selection in financials and energy, along with unfavorable overall positioning in transportation and consumer staples, detracted from relative performance. On the high-yield bond side of the fund, disappointing security selection in metals/mining, transportation, and industrials dampened the fund’s return versus the benchmark.

In terms of individual convertibles, not holding several index components worked

This chart shows how the fund’s top weightings have changed over the past six months. Allocations are represented as a percentage of the fund’s net assets. Cash and net other assets, if any, represent the market value weights of cash, derivatives, short-term securities, and other unclassified assets in the portfolio. Current period summary information may differ from the portfolio schedule included in the financial statements due to the inclusion of derivative securities, any interest accruals, and the use of different classifications of securities for presentation purposes. Holdings and allocations may vary over time.

against the fund. Specifically, we avoided the securities issued by mortgage insurers MGIC Investment and Radian Group because we believed they did not fit well within our risk/return parameters.

Rob: Bridging both our convertible and high-yield bond holdings, a position in multinational steelmaker ArcelorMittal also detracted, primarily due to continuing weakness in overseas residential and commercial construction. Additionally, the company’s bonds were downgraded to below investment grade in 2012, which led many investors to sell their positions.

We had a position in the common stock of Freeport-McMoRan Copper & Gold, which is the world’s second-largest copper producer, and it dampened results amid declining prices for copper and gold. We sold this holding during the period.

The fund reduced its distribution rate during the period. What led to that decision?

Rob: The fund’s monthly distribution rate was lowered to $0.039 per share from $0.044 in December, due to a reduction in the amount of income earned by the portfolio, which resulted from declining yields in the marketplace generally.

What is your outlook for the high-yield convertibles market?

Eric: We have a positive outlook for high-yield convertibles for the balance of 2013. Even with the healthy gains that we have seen during the past year, we think valuations are still attractive — suggesting that the rally may, in our view, have more upside. We think corporate credit spreads [the yield advantage corporate bonds offer over U.S. Treasuries] could tighten from current levels, which would be positive for convertible performance. Moreover, the revival of issuance in the convertibles market by large- and small-cap companies across a wide spectrum of sectors is creating a diverse pool of investment opportunities.

Do you have any closing thoughts on your outlook for the high-yield bond market?

Rob: At period-end, the fundamental backdrop for high-yield bonds remained solid; issuers were in reasonably good financial shape, and the default rate was still near the historic low. Moreover, high-yield bonds have historically done well during periods of moderate economic growth.

From a valuation standpoint, high-yield bond spreads have widened and are attractive relative to the historical average. At current levels, we believe spreads provide fair compensation for investing in a group of companies that, in our view, are fundamentally solid, against the backdrop of a low default rate.

When interest rates were lower and credit spreads were tighter, a significant proportion of high-yield bonds were trading at premium prices, meaning above their par value. Because high-yield bonds can generally be called away by the issuer prior to their maturity dates, the market was effectively stuck at higher prices without providing much call protection. Now, with rates at higher levels and bond prices lower, we believe the market is offering better opportunities for capital appreciation plus higher yields.

We believe there are still compelling investment opportunities in the middle- and lower-quality tiers of the market. Additionally, bonds in these parts of the market tend to be less sensitive to interest-rate movements, which could provide the fund with some degree of insulation during periods when rates spike higher.

Thanks for bringing us up to date, gentlemen.

The views expressed in this report are exclusively those of Putnam Management and are subject to change. They are not meant as investment advice.

Please note that the holdings discussed in this report may not have been held by the fund for the entire period. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk.

Portfolio Manager Eric N. Harthun has an M.B.A. from The University of Chicago Booth School of Business and a B.S. from San Diego State University. A CFA charterholder, Eric joined Putnam in 2000 and has been in the investment industry since 1994.

Portfolio Manager Robert L. Salvin has an M.B.A. from The University of Chicago Booth School of Business and a B.S. from the Wharton School of the University of Pennsylvania. He joined Putnam in 2000 and has been in the investment industry since 1986.

IN THE NEWS

At its September meeting, the Federal Open Market Committee surprised investors by delaying the tapering of its $85 billion-a-month bond-buying stimulus program. Declaring that the challenges facing the U.S. economy are diminishing “only gradually,” Fed Chairman Ben Bernanke said the central bank will wait to curtail its quantitative easing program until there is more evidence of a sustained recovery. Bernanke in his comments noted a deceleration of U.S. job growth in the past three months. The bond-buying stimulus program was established in the fall of 2012 to stimulate the economy and employment growth, and is widely credited with buoying equity prices and holding down long-term interest rates. Previously, when the Fed chairman signaled in May 2013 that the Fed’s bond purchases could be scaled back in the final months of this year, the news sent tremors through bond markets and contributed to an abrupt increase in Treasury yields.

Your fund’s performance

This section shows your fund’s performance, price, and distribution information for periods ended August 31, 2013, the end of its most recent fiscal year. In accordance with regulatory requirements for mutual funds, we also include performance information as of the most recent calendar quarter-end. Performance should always be considered in light of a fund’s investment strategy. Data represent past performance. Past performance does not guarantee future results. More recent returns may be less or more than those shown. Investment return, net asset value, and market price will fluctuate, and you may have a gain or a loss when you sell your shares.

Fund performance Total return for periods ended 8/31/13

Performance assumes reinvestment of distributions and does not account for taxes.

Comparative index returns For periods ended 8/31/13

Index and Lipper results should be compared with fund performance at net asset value. Lipper calculates performance differently than the closed-end funds it ranks, due to varying methods for determining a fund’s monthly reinvestment net asset value.

* Over the 1-year, 3-year, 5-year, 10-year, and life-of-fund periods ended 8/31/13, there were 11, 11, 11, 9, and 2 funds, respectively, in this Lipper category.

† The fund’s blended benchmark is an unmanaged index administered by Putnam Management, 50% of which is the JPMorgan Developed High Yield Index and 50% of which is BofA Merrill Lynch All-Convertibles Speculative Quality Index. The BofA Merrill Lynch All-Convertibles Speculative Quality Index and the JPMorgan Developed High Yield Index were introduced on 12/31/92 and 12/31/94, respectively, which post-date the inception of the fund.

Fund price and distribution information For the 12-month period ended 8/31/13

The classification of distributions, if any, is an estimate. Final distribution information will appear on your year-end tax forms.

* Most recent distribution, including any return of capital and excluding capital gains, annualized and divided by NAV or market price at end of period.

Fund performance as of most recent calendar quarter
Total return for periods ended 9/30/13

See the discussion following the Fund performance table on page 11 for information about the calculation of fund performance.

Terms and definitions

Important terms

Total return shows how the value of the fund’s shares changed over time, assuming you held the shares through the entire period and reinvested all distributions in the fund.

Net asset value (NAV) is the value of all your fund’s assets, minus any liabilities, divided by the number of outstanding shares.

Market price is the current trading price of one share of the fund. Market prices are set by transactions between buyers and sellers on exchanges such as the New York Stock Exchange.

Fixed-income terms

Current rate is the annual rate of return earned from dividends or interest of an investment. Current rate is expressed as a percentage of the price of a security, fund share, or principal investment.

Yield curve is a graph that plots the yields of bonds with equal credit quality against their differing maturity dates, ranging from shortest to longest. It is used as a benchmark for other debt, such as mortgage or bank lending rates.

Comparative indexes

Barclays U.S. Aggregate Bond Index is an unmanaged index of U.S. investment-grade fixed-income securities.

The fund’s blended benchmark is an unmanaged index administered by Putnam Management, 50% of which is the JPMorgan Developed High Yield Index and 50% of which is the BofA Merrill Lynch All-Convertibles Speculative Quality Index.

BofA Merrill Lynch All-Convertibles Speculative Quality Index is an unmanaged index of U.S. convertible securities.

BofA Merrill Lynch U.S. 3-Month Treasury Bill Index is an unmanaged index that seeks to measure the performance of U.S. Treasury bills available in the marketplace.

JPMorgan Developed High Yield Index is an unmanaged index of high-yield fixed-income securities issued in developed countries.

S&P 500 Index is an unmanaged index of common stock performance.

Indexes assume reinvestment of all distributions and do not account for fees. Securities and performance of a fund and an index will differ. You cannot invest directly in an index.

Lipper is a third-party industry-ranking entity that ranks mutual funds. Its rankings do not reflect sales charges. Lipper rankings are based on total return at net asset value relative to other funds that have similar current investment styles or objectives as determined by Lipper. Lipper may change a fund’s category assignment at its discretion. Lipper category averages reflect performance trends for funds within a category.

Other information for shareholders

Important notice regarding share repurchase program

In September 2013, the Trustees of your fund approved the renewal of a share repurchase program that had been in effect since 2005. This renewal will allow your fund to repurchase, in the 12 months beginning October 8, 2013, up to 10% of the fund’s common shares outstanding as of October 7, 2013.

Proxy voting

Putnam is committed to managing our mutual funds in the best interests of our shareholders. The Putnam funds’ proxy voting guidelines and procedures, as well as information regarding how your fund voted proxies relating to portfolio securities during the 12-month period ended June 30, 2013, are available in the Individual Investors section of putnam.com, and on the Securities and Exchange Commission (SEC) website, www.sec.gov. If you have questions about finding forms on the SEC’s website, you may call the SEC at 1-800-SEC-0330. You may also obtain the Putnam funds’ proxy voting guidelines and procedures at no charge by calling Putnam’s Shareholder Services at 1-800-225-1581.

Fund portfolio holdings

The fund will file a complete schedule of its portfolio holdings with the SEC for the first and third quarters of each fiscal year on Form N-Q. Shareholders may obtain the fund’s Forms N-Q on the SEC’s website at www.sec.gov. In addition, the fund’s Forms N-Q may be reviewed and copied at the SEC’s Public Reference Room in Washington, D.C. You may call the SEC at 1-800-SEC-0330 for information about the SEC’s website or the operation of the Public Reference Room.

Trustee and employee fund ownership

Putnam employees and members of the Board of Trustees place their faith, confidence, and, most importantly, investment dollars in Putnam mutual funds. As of August 31, 2013, Putnam employees had approximately $387,000,000 and the Trustees had approximately $93,000,000 invested in Putnam mutual funds. These amounts include investments by the Trustees’ and employees’ immediate family members as well as investments through retirement and deferred compensation plans.

Important notice regarding Putnam’s privacy policy

In order to conduct business with our shareholders, we must obtain certain personal information such as account holders’ names, addresses, Social Security numbers, and dates of birth. Using this information, we are able to maintain accurate records of accounts and transactions.

It is our policy to protect the confidentiality of our shareholder information, whether or not a shareholder currently owns shares of our funds. In particular, it is our policy not to sell information about you or your accounts to outside marketing firms. We have safeguards in place designed to prevent unauthorized access to our computer systems and procedures to protect personal information from unauthorized use.

Under certain circumstances, we must share account information with outside vendors who provide services to us, such as mailings and proxy solicitations. In these cases, the service providers enter into confidentiality agreements with us, and we provide only the information necessary to process transactions and perform other services related to your account. Finally, it is our policy to share account information with your financial representative, if you’ve listed one on your Putnam account.

Summary of Putnam Closed-End Funds’ Amended and Restated Dividend Reinvestment Plans

Putnam High Income Securities Fund, Putnam Managed Municipal Income Trust, Putnam Master Intermediate Income Trust, Putnam Municipal Opportunities Trust and Putnam Premier Income Trust (each, a “Fund” and collectively, the “Funds”) each offer a dividend reinvestment plan (each, a “Plan” and collectively, the “Plans”). If you participate in a Plan, all income dividends and capital gain distributions are automatically reinvested in Fund shares by the Fund’s agent, Putnam Investor Services, Inc. (the “Agent”). If you are not participating in a Plan, every month you will receive all dividends and other distributions in cash, paid by check and mailed directly to you.

Upon a purchase (or, where applicable, upon registration of transfer on the shareholder records of a Fund) of shares of a Fund by a registered shareholder, each such shareholder will be deemed to have elected to participate in that Fund’s Plan. Each such shareholder will have all distributions by a Fund automatically reinvested in additional shares, unless such shareholder elects to terminate participation in a Plan by instructing the Agent to pay future distributions in cash. Shareholders who were not participants in a Plan as of January 31, 2010, will continue to receive distributions in cash but may enroll in a Plan at any time by contacting the Agent.

If you participate in a Fund’s Plan, the Agent will automatically reinvest subsequent distributions, and the Agent will send you a confirmation in the mail telling you how many additional shares were issued to your account.

To change your enrollment status or to request additional information about the Plans, you may contact the Agent either in writing, at P.O. Box 8383, Boston, MA 02266-8383, or by telephone at 1-800-225-1581 during normal East Coast business hours.

How you acquire additional shares through a Plan If the market price per share for your Fund’s shares (plus estimated brokerage commissions) is greater than or equal to their net asset value per share on the payment date for a distribution, you will be issued shares of the Fund at a value equal to the higher of the net asset value per share on that date or 95% of the market price per share on that date.

If the market price per share for your Fund’s shares (plus estimated brokerage commissions) is less than their net asset value per share on the payment date for a distribution, the Agent will buy Fund shares for participating accounts in the open market. The Agent will aggregate open-market purchases on behalf of all participants, and the average price (including brokerage commissions) of all shares purchased by the Agent will be the price per share allocable to each participant. The Agent will generally complete these open-market purchases within five business days following the payment date. If, before the Agent has completed open-market purchases, the market price per share (plus estimated brokerage commissions) rises to exceed the net asset value per share on the payment date, then the purchase price may exceed the net asset value per share, potentially resulting in the acquisition of fewer shares than if the distribution had been paid in newly issued shares.

How to withdraw from a Plan Participants may withdraw from a Fund’s Plan at any time by notifying the Agent, either in writing or by telephone. Such withdrawal will be effective immediately if notice is received by the Agent with sufficient time prior to any distribution record date; otherwise, such withdrawal will be effective with respect to any subsequent distribution following notice of withdrawal.

There is no penalty for withdrawing from or not participating in a Plan.

Plan administration The Agent will credit all shares acquired for a participant under a Plan to the account in which the participant’s common shares are held. Each participant will be sent reasonably promptly a confirmation by the Agent of each acquisition made for his or her account.

About brokerage fees Each participant pays a proportionate share of any brokerage commissions incurred if the Agent purchases additional shares on the open market, in accordance with the Plans. There are no brokerage charges applied to shares issued directly by the Funds under the Plans.

About taxes and Plan amendments Reinvesting dividend and capital gain distributions in shares of the Funds does not relieve you of tax obligations, which are the same as if you had received cash distributions. The Agent supplies tax information to you and to the IRS annually. Each Fund reserves the right to amend or terminate its Plan upon 30 days’ written notice. However, the Agent may assign its rights, and delegate its duties, to a successor agent with the prior consent of a Fund and without prior notice to Plan participants.

If your shares are held in a broker or nominee name If your shares are held in the name of a broker or nominee offering a dividend reinvestment service, consult your broker or nominee to ensure that an appropriate election is made on your behalf. If the broker or nominee holding your shares does not provide a reinvestment service, you may need to register your shares in your own name in order to participate in a Plan.

In the case of record shareholders such as banks, brokers or nominees that hold shares for others who are the beneficial owners of such shares, the Agent will administer the Plan on the basis of the number of shares certified by the record shareholder as representing the total amount registered in such shareholder’s name and held for the account of beneficial owners who are to participate in the Plan.

Trustee approval of management contract

General conclusions

The Board of Trustees of the Putnam funds oversees the management of each fund and, as required by law, determines annually whether to approve the continuance of your fund’s management contract with Putnam Investment Management (“Putnam Management”) and the sub-management contract with respect to your fund between Putnam Management and its affiliate, Putnam Investments Limited (“PIL”). The Board of Trustees, with the assistance of its Contract Committee, requests and evaluates all information it deems reasonably necessary under the circumstances in connection with its annual contract review. The Contract Committee consists solely of Trustees who are not “interested persons” (as this term is defined in the Investment Company Act of 1940, as amended (the “1940 Act”)) of the Putnam funds (“Independent Trustees”).

At the outset of the review process, members of the Board’s independent staff and independent legal counsel met with representatives of Putnam Management to review the annual contract review materials furnished to the Contract Committee during the course of the previous year’s review and to discuss possible changes in these materials that might be necessary or desirable for the coming year. Following these discussions and in consultation with the Contract Committee, the Independent Trustees’ independent legal counsel requested that Putnam Management furnish specified information, together with any additional information that Putnam Management considered relevant, to the Contract Committee. Over the course of several months ending in June 2013, the Contract Committee met on a number of occasions with representatives of Putnam Management, and separately in executive session, to consider the information that Putnam Management provided. Throughout this process, the Contract Committee was assisted by the members of the Board’s independent staff and by independent legal counsel for the Putnam funds and the Independent Trustees.

In May 2013, the Contract Committee met in executive session to discuss and consider its preliminary recommendations with respect to the continuance of the contracts. At the Trustees’ June 20, 2013 meeting, the Contract Committee met in executive session with the other Independent Trustees to review a summary of the key financial data that the Contract Committee considered in the course of its review. The Contract Committee then presented its written report, which summarized the key factors that the Committee had considered and set forth its final recommendations. The Contract Committee then recommended, and the Independent Trustees approved, the continuance of your fund’s management and sub-management contracts, effective July 1, 2013, subject to certain changes in the sub-management contract noted below. (Because PIL is an affiliate of Putnam Management and Putnam Management remains fully responsible for all services provided by PIL, the Trustees have not evaluated PIL as a separate entity, and all subsequent references to Putnam Management below should be deemed to include reference to PIL as necessary or appropriate in the context.)

The Independent Trustees’ approval was based on the following conclusions:

• That the fee schedule in effect for your fund represented reasonable compensation in light of the nature and quality of the services being provided to the fund, the fees paid by competitive funds, and the costs incurred by Putnam Management in providing services to the fund, and

• That the fee schedule represented an appropriate sharing between fund shareholders and Putnam Management of such economies of scale as may exist in the management of the fund at current asset levels.

These conclusions were based on a comprehensive consideration of all information provided to the Trustees and were not the result of any single factor. Some of the factors that figured particularly in the Trustees’ deliberations and how the Trustees considered these factors are described below, although individual Trustees may have evaluated the information presented differently, giving different weights to various factors. It is also important to recognize that the management arrangements for your fund and the other Putnam funds are the result of many years of review and discussion between the Independent Trustees and Putnam Management, that some aspects of the arrangements may receive greater scrutiny in some years than others, and that the Trustees’ conclusions may be based, in part, on their consideration of fee arrangements in previous years.

As noted above, the Trustees considered certain administrative revisions to your fund’s sub-management contract. Putnam Management recommended that the sub-management contract be revised to reduce the sub-management fee that Putnam Management pays to PIL with respect to the portion of the portfolios of certain funds, but not your fund, that may be allocated to PIL from time to time. The Independent Trustees’ approval of this recommendation was based on their conclusion that these changes would have no practical effect on Putnam Management’s continued responsibility for the management of these funds or the costs borne by fund shareholders and would not result in any reduction in the nature and quality of services provided to the funds.

Management fee schedules and total expenses

The Trustees reviewed the management fee schedules in effect for all Putnam funds, including fee levels and breakpoints. The Trustees also reviewed the total expenses of each Putnam fund, recognizing that in most cases management fees represented the major, but not the sole, determinant of total costs to shareholders.

In reviewing fees and expenses, the Trustees generally focus their attention on material changes in circumstances — for example, changes in assets under management, changes in a fund’s investment style, changes in Putnam Management’s operating costs or profitability, or changes in competitive practices in the mutual fund industry — that suggest that consideration of fee changes might be warranted. The Trustees concluded that the circumstances did not warrant changes to the management fee structure of your fund.

Under its management contract, your fund has the benefit of breakpoints in its management fee schedule that provide shareholders with economies of scale in the form of reduced fee levels as the fund’s assets under management increase. In recent years, the Trustees have examined the operation of the existing breakpoint structure during periods of both growth and decline in asset levels. The Trustees concluded that the fee schedule in effect for your fund represented an appropriate sharing of economies of scale between fund shareholders and Putnam Management.

The Trustees reviewed comparative fee and expense information for a custom group of competitive funds selected by Lipper Inc. This comparative information included your fund’s percentile ranking for effective management fees and total expenses, which provides a general indication of your fund’s relative standing. In the custom peer group, your fund ranked in the 1st quintile in effective management fees (determined for your fund and the other funds in the custom peer group based on fund asset size and the applicable contractual management fee schedule) and in the 1st quintile in total expenses as of December 31, 2012 (the first quintile representing the least expensive funds and the fifth quintile the most expensive funds). The fee and expense data reported by Lipper as of December 31, 2012 reflected the

most recent fiscal year-end data available in Lipper’s database at that time.

In connection with their review of the management fees and total expenses of the Putnam funds, the Trustees also reviewed the costs of the services provided and the profits realized by Putnam Management and its affiliates from their contractual relationships with the funds. This information included trends in revenues, expenses and profitability of Putnam Management and its affiliates relating to the investment management, investor servicing and distribution services provided to the funds. In this regard, the Trustees also reviewed an analysis of Putnam Management’s revenues, expenses and profitability, allocated on a fund-by-fund basis, with respect to the funds’ management, distribution, and investor servicing contracts. For each fund, the analysis presented information about revenues, expenses and profitability for each of the agreements separately and for the agreements taken together on a combined basis. The Trustees concluded that, at current asset levels, the fee schedules in place represented reasonable compensation for the services being provided and represented an appropriate sharing of such economies of scale as may exist in the management of the Putnam funds at that time.

The information examined by the Trustees as part of their annual contract review for the Putnam funds has included for many years information regarding fees charged by Putnam Management and its affiliates to institutional clients such as defined benefit pension plans, college endowments, and the like. This information included comparisons of those fees with fees charged to the funds, as well as an assessment of the differences in the services provided to these different types of clients. The Trustees observed that the differences in fee rates between institutional clients and mutual funds are by no means uniform when examined by individual asset sectors, suggesting that differences in the pricing of investment management services to these types of clients may reflect historical competitive forces operating in separate markets. The Trustees considered the fact that in many cases fee rates across different asset classes are higher on average for mutual funds than for institutional clients, as well as the differences between the services that Putnam Management provides to the Putnam funds and those that it provides to its institutional clients. The Trustees did not rely on these comparisons to any significant extent in concluding that the management fees paid by your fund are reasonable.

Investment performance

The quality of the investment process provided by Putnam Management represented a major factor in the Trustees’ evaluation of the quality of services provided by Putnam Management under your fund’s management contract. The Trustees were assisted in their review of the Putnam funds’ investment process and performance by the work of the investment oversight committees of the Trustees, which meet on a regular basis with the funds’ portfolio teams and with the Chief Investment Officer and other senior members of Putnam Management’s Investment Division throughout the year. The Trustees concluded that Putnam Management generally provides a high-quality investment process — based on the experience and skills of the individuals assigned to the management of fund portfolios, the resources made available to them, and in general Putnam Management’s ability to attract and retain high-quality personnel — but also recognized that this does not guarantee favorable investment results for every fund in every time period.

The Trustees considered that 2012 was a year of strong competitive performance for many of the Putnam funds, with only a relatively small number of exceptions. They noted that this strong performance was exemplified by the fact that the Putnam funds were recognized by Barron’s as the best performing mutual fund complex for 2012 — the second time in four

years that Putnam Management has achieved this distinction for the Putnam funds. They also noted, however, the disappointing investment performance of some funds for periods ended December 31, 2012 and considered information provided by Putnam Management regarding the factors contributing to the underperformance and actions being taken to improve the performance of these particular funds. The Trustees indicated their intention to continue to monitor performance trends to assess the effectiveness of these efforts and to evaluate whether additional actions to address areas of underperformance are warranted.

For purposes of evaluating investment performance, the Trustees generally focus on competitive industry rankings for the one-year, three-year, and five-year periods. For a number of Putnam funds with relatively unique investment mandates, the Trustees evaluated performance based on comparisons of their absolute returns with the returns of selected investment benchmarks or targeted annualized returns. In the case of your fund, the Trustees considered that its common share cumulative total return performance at net asset value was in the following quartiles of its Lipper Inc. peer group (Lipper Convertible Securities Funds (closed-end)) for the one-year, three-year and five-year periods ended December 31, 2012 (the first quartile representing the best-performing funds and the fourth quartile the worst-performing funds):

Over the one-year, three-year and five-year periods ended December 31, 2012, there were 11, 11 and 11 funds, respectively, in your fund’s Lipper peer group. (When considering performance information, shareholders should be mindful that past performance is not a guarantee of future results.)

Brokerage and soft-dollar allocations; investor servicing

The Trustees considered various potential benefits that Putnam Management may receive in connection with the services it provides under the management contract with your fund. These include benefits related to brokerage allocation and the use of soft dollars, whereby a portion of the commissions paid by a fund for brokerage may be used to acquire research services that are expected to be useful to Putnam Management in managing the assets of the fund and of other clients. Subject to policies established by the Trustees, soft dollars generated by these means are used primarily to acquire brokerage and research services that enhance Putnam Management’s investment capabilities and supplement Putnam Management’s internal research efforts. However, the Trustees noted that a portion of available soft dollars continues to be used to pay fund expenses. The Trustees indicated their continued intent to monitor regulatory and industry developments in this area with the assistance of their Brokerage Committee and also indicated their continued intent to monitor the allocation of the Putnam funds’ brokerage in order to ensure that the principle of seeking best price and execution remains paramount in the portfolio trading process.

Putnam Management may also receive benefits from payments that the funds make to Putnam Management’s affiliates for investor services. In conjunction with the annual review of your fund’s management and sub-management contracts, the Trustees reviewed your fund’s investor servicing agreement with Putnam Investor Services, Inc. (“PSERV”), which is an affiliate of Putnam Management. The Trustees concluded that the fees payable by the funds to PSERV for such services are reasonable in relation to the nature and quality of such services, the fees paid by competitive funds, and the costs incurred by PSERV in providing such services.

Financial statements

A note about your fund’s auditors

A non-U.S. member firm in PricewaterhouseCoopers LLP’s (“PwC”) global network of firms has an investment in certain non-U.S. funds now affiliated with Putnam Investments as a result of the July 2013 acquisition of the funds’ advisor by Putnam’s parent company, Great-West Lifeco Inc. The investment consists of pension plan assets for the benefit of the member firm’s personnel. The investment is inconsistent with the requirements of the Securities and Exchange Commission’s auditor independence rules. Your fund has been informed by PwC that to address this issue, the member firm is in the process of selecting different advisors not affiliated with Putnam to manage the relevant pension plans and transferring the plans’ assets to such advisors. None of the member firm’s personnel is on the PwC audit team for your fund, and none of the members of the audit team participates in the member firm’s pension plans. Based on its knowledge of the facts and its experience with PwC, the Audit and Compliance Committee of your fund’s Board of Trustees concluded that the investment by the PwC member firm would not affect PwC’s ability to render an objective audit opinion to your fund. Based on this conclusion and consideration of the potential risks that the disruption of a change of auditors could present, the Audit and Compliance Committee determined that PwC should continue to act as auditors for your fund.

These sections of the report, as well as the accompanying Notes, preceded by the Report of Independent Registered Public Accounting Firm, constitute the fund’s financial statements.

The fund’s portfolio lists all the fund’s investments and their values as of the last day of the reporting period. Holdings are organized by asset type and industry sector, country, or state to show areas of concentration and diversification.

Statement of assets and liabilities shows how the fund’s net assets and share price are determined. All investment and non-investment assets are added together. Any unpaid expenses and other liabilities are subtracted from this total. The result is divided by the number of shares to determine the net asset value per share. (For funds with preferred shares, the amount subtracted from total assets includes the liquidation preference of preferred shares.)

Statement of operations shows the fund’s net investment gain or loss. This is done by first adding up all the fund’s earnings — from dividends and interest income — and subtracting its operating expenses to determine net investment income (or loss). Then, any net gain or loss the fund realized on the sales of its holdings — as well as any unrealized gains or losses over the period — is added to or subtracted from the net investment result to determine the fund’s net gain or loss for the fiscal year.

Statement of changes in net assets shows how the fund’s net assets were affected by the fund’s net investment gain or loss, by distributions to shareholders, and by changes in the number of the fund’s shares. It lists distributions and their sources (net investment income or realized capital gains) over the current reporting period and the most recent fiscal year-end. The distributions listed here may not match the sources listed in the Statement of operations because the distributions are determined on a tax basis and may be paid in a different period from the one in which they were earned.

Financial highlights provide an overview of the fund’s investment results, per-share distributions, expense ratios, net investment income ratios, and portfolio turnover in one summary table, reflecting the five most recent reporting periods. In a semiannual report, the highlights table also includes the current reporting period.

Report of Independent Registered Public Accounting Firm

To the Trustees and Shareholders of
Putnam High Income Securities Fund:

In our opinion, the accompanying statement of assets and liabilities, including the portfolio, and the related statements of operations and of changes in net assets and the financial highlights present fairly, in all material respects, the financial position of Putnam High Income Securities Fund (the “fund”) at August 31, 2013, and the results of its operations, the changes in its net assets and the financial highlights for each of the periods indicated, in conformity with accounting principles generally accepted in the United States of America. These financial statements and financial highlights (hereafter referred to as “financial statements”) are the responsibility of the fund’s management. Our responsibility is to express an opinion on these financial statements based on our audits. We conducted our audits of these financial statements in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. We believe that our audits, which included confirmation of investments owned at August 31, 2013 by correspondence with the custodian, brokers, and transfer agent, provide a reasonable basis for our opinion.

PricewaterhouseCoopers LLP
Boston, Massachusetts
October 15, 2013

The fund’s portfolio 8/31/13