Putnam Sustainable Leaders Fund Class Y (PNOYX) CORRESPCorrespondence with SEC

Putnam Investments

100 Federal Street

Boston, MA 02110

August 27, 2021

Dear Mr. McLaren:

On August 11, 2021, you provided comments to Venice Monagan of Putnam Investment Management, LLC (“Putnam Management”), investment adviser to the Fund, and James Forbes and Vania Cornelio of Ropes & Gray LLP, counsel to the Fund, on behalf of the Staff of the Commission (the “Commission Staff”) regarding the 485(a) Amendment (the “Initial Comments”). Putnam Investments responded to the Initial Comments in a letter filed as correspondence on EDGAR on August 23, 2021 (the “Initial Response Letter”). On August 26, 2021, you provided additional comments telephonically to Mses. Monagan and Cornelio and Mr. Forbes on behalf of the Commission Staff regarding the 485(a) Amendment and the Initial Response Letter. This letter responds to those additional comments. For convenience, I have summarized the Commission Staff’s comments before the Fund’s responses. These responses, subject to further discussion with the Commission Staff regarding the Commission Staff’s comments, as appropriate, will be reflected in supplements to the Fund’s summary and statutory prospectuses filed pursuant to Rule 497(e) under the Securities Act to be filed with the Commission on or around August 31, 2021 (the “Supplements”). References to specific text in the Commission Staff’s comments and the Fund’s responses are to the corresponding text of the 485(a) Amendment, as indicated.

Fund summary – Fees and expenses

Response: As the Registrant noted in the Initial Response Letter, the maximum performance adjustment rate for the Fund, which is 0.12% upward or downward, is disclosed in both the “Who oversees and manages the fund?—The fund’s investment manager” section of the Fund’s prospectus and the “CHARGES AND EXPENSES—Management Fees” section of the Statement of Additional Information. The Registrant is not aware of any requirement in Item 3 of Form N-1A, or the associated instructions, for the maximum performance adjustment to be disclosed in the footnotes to the “Annual fund operating expenses” table. Notwithstanding its belief that such disclosure is not required by Form N-1A, the Registrant intends to revise the relevant footnote to the “Annual fund operating expenses table” in the Supplements as follows (new language denoted by underline):

†Management fees are subject to a performance adjustment. The fund’s base management fee is subject to adjustment, up or down, based on the fund’s performance relative to the performance of the S&P 500 Index for portions of a performance period after August 1, 2019 and the Russell 3000 Growth Index for portions of a performance period prior to August 1, 2019. The maximum annualized performance adjustment rate, upward or downward, is 0.12%. For the most recent fiscal year, the fund’s base management fee prior to any performance adjustment was 0.549%.

Fund summary – Investments, risks, and performance – Investments

Response: The Registrant notes that the changes to the description of the Fund’s principal investment strategies were made to align it with the description of the principal investment strategies of an exchange-traded fund managed by Putnam Management using substantially similar strategies as those of the Fund (the “Related ETF”). Specifically, the revised description for the Fund incorporates disclosure that was implemented for the Related ETF in response to comments from the Commission Staff in connection with the filing of the Related ETF’s initial registration statement, including the adoption of a non-fundamental policy to invest, under normal circumstances, at least 80% of the value of the Fund’s net assets in securities that meet Putnam Management’s sustainability criteria (the “80% Policy”). Although the Registrant does not expect the changes to the description of the Fund’s principal investment strategies to result in material changes to the Fund’s portfolio, the Registrant implemented these changes by filing a post-effective amendment to the Registration Statement pursuant to Rule 485(a) under the Securities Act out of an abundance of caution and to provide the Commission Staff with an opportunity to review, particularly in light of the adoption of the 80% Policy.

Response: The Registrant refers to its response to the related comment in the Initial Response Letter regarding the description of Putnam Management’s approach to evaluating a company’s commitment to “financially material sustainable business practices” appearing under the heading “Investments.” The Registrant intends to incorporate additional detail regarding the meaning of the phrase “financially material sustainable business practices,” and the quantifiable measurements used by Putnam Management in evaluating those practices for potential investments, by revising the first paragraph under the heading Investments in the Supplements as follows (new language denoted by underline and deleted language denoted bystrike-through):

We invest mainly in common stocks of U.S. companies of any size, with a focus on companies that we believe exhibit a commitment to financially material sustainable business practices. In evaluating investments for the fund, we view “financially material sustainable business practices” as business practices that we believe are reasonably likely to impact the financial condition or operating performance of a company and that relate to environmental, social, or corporate governance issues. We identify relevant environmental, social, or corporate governance issues on a sector-specific basis using an internally developed materiality map, which is informed by the sustainability issues identified by the Sustainability Accounting Standards Board as material to companies within a particular industry. As part of this analysis, we may utilize metrics and information such as emissions data, carbon intensity, sources of energy used for operations, water use and re-use, water generation and diversion from landfill, employee safety and diversity data, supplier audits, product safety, board composition, and incentive compensation structures. Stocks of companies that exhibit a commitment to financially material sustainable business practices are typically, but not always, considered to be growth stocks. Growth stocks are stocks of companies whose revenues, earnings, or cash flows are expected to grow faster than those of similar firms, and whose business growth and other characteristics may lead to an increase in stock price. We may consider, among other factors, a company’s sustainable business practices (as describedbelowabove), valuation, financial strength, growth potential, competitive position in its industry, projected future earnings, cash flows and dividends when deciding whether to buy or sell investments. We may also invest in non-U.S. companies.

The Registrant believes that the description of the phrase “financially material sustainable business practices,” as revised, is appropriate and consistent with the plain English requirements of Rule 421 under the Securities Act.

Commission Staff believes that the term “sustainable” implicates Rule 35d-1 and reissues its request from the Initial Comments that, if the 80% Policy is non-fundamental, disclosure be added to indicate that the 80% Policy may be changed only upon 60 days’ prior written notice to shareholders.

Response: The Registrant respectfully disagrees with the Staff’s position and, as stated in the Initial Response Letter, continues to believe that the term “sustainable” as used in the Fund’s name suggests an investment strategy rather than a type of security and, therefore, that the Fund is not required to adopt a Rule 35d-1 policy with respect to the term “sustainable.”  That belief notwithstanding, the Registrant intends to comply with Rule 35d-1 with respect to the 80% Policy and will add the following disclosure in the Supplements after the recitation of the 80% Policy:

This policy may be changed only after 60 days’ notice to shareholders.

Response: The Registrant intends to incorporate additional detail regarding the meaning of the phrase “sustainability criteria” in the Supplements by adding the following disclosure after the reference to “sustainability criteria” in the recitation of the 80% Policy that appears in the second paragraph under the heading “Investments”:

These criteria are based on a proprietary materiality map that is informed by the sustainability issues identified as material by the Sustainability Accounting Standards Board.

Response: The Registrant intends to remove the referenced disclosure from the Supplements, as well as similar disclosure that currently appears in the section “What are the fund’s main investment strategies and related risks?”

Response: The Registrant notes that, as stated in the Initial Response Letter, while Putnam Management may consider independent third-party data as part of its analytical processes, it performs its own independent analysis of issuers and does not rely on third-party screens. The Registrant also notes that the description of the Fund’s principal risks under the heading “Risks” includes the statement that “In evaluating an investment opportunity, we may make investment decisions based on information and data that is incomplete or inaccurate.” The Registrant further intends to add the following disclosure about the principal risks associated with the Fund’s use of third-party ESG data in the Supplements under the heading “Risks”:

Sustainability and ESG factors are not uniformly defined and applying such factors involves subjective assessments. Sustainability and ESG scorings and assessments of issuers can vary across third-party data providers and may change over time.

The Registrant believes that these disclosures appropriately describe the principal risks associated with the Fund’s use of third-party ESG data.

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I believe this letter addresses the Commission Staff’s comments. Should you have any further questions, please do not hesitate to call me at (617) 760-2577. Thank you for your assistance.

Very truly yours,

/s/ Venice Monagan

Venice Monagan

Senior Counsel

Putnam Investments