A. Describe your advisory firm, including how long you have been in business. Identify your principal owner(s). Notes: (1) For purposes of this item, your principal owners include the persons you list as owning 25% or more of your firm on Schedule A of Part 1A of Form ADV (Ownership Codes C, D or E). (2) If you are a publicly held company without a 25% shareholder, simply disclose that you are publicly held. (3) If an individual or company owns 25% or more of your firm through subsidiaries, you must identify the individual or parent company and intermediate subsidiaries. If you are an SEC-registered adviser, you must identify intermediate subsidiaries that are publicly held, but not other intermediate subsidiaries. If you are a state-registered adviser, you must identify all intermediate subsidiaries. JNAM serves as an investment adviser but limits its investment management services to rendering investment advisory services in connection with mutual funds sponsored by affiliated entities. JNAM does not have any retail or private investment advisory clients. JNAM does not have third-party advisory clients and does not provide investment advisory services to “government entities.” JNAM has been a registered investment adviser since January 2001. As described in more detail below, JNAM has engaged the services of other investment advisers (each a “Sub-Adviser,” and collectively, “Sub-Advisers”) to manage the investment activities of certain of the separate investment portfolios (series) of the JNL Series Trust and the JNL Investors Series Trust (each a “Fund,” and collectively, “Funds”), registered as investment companies pursuant to the Investment Company Act of 1940, as amended (“1940 Act”), and the Securities Act of 1933, as amended (“1933 Act”). JNAM may recommend the replacement of a Fund’s Sub-Adviser with another Sub-Adviser. In limited situations, JNAM may assist in a “transition,” moving portfolios from one Sub-Adviser to another Sub-Adviser. During transitions, JNAM personnel may provide instructions to the transition manager and the custodian. JNAM personnel are authorized by the Funds’ Board of Trustees to provide such instructions. JNAM is an indirect, wholly owned subsidiary of Jackson Financial Inc. (“Jackson”), a leading provider of retirement products for industry professionals and their clients.[1] Jackson and its affiliates offer variable, fixed and fixed index annuities designed for tax-efficient growth and distribution of retirement income for retail customers, as well as products for institutional investors. Prudential plc holds a minority economic interest in Jackson. Prudential plc has no relation to Newark, New Jersey-based Prudential Financial Inc. The Funds underlie certain Variable Contracts (variable products) sponsored by Jackson and Jackson National Life Insurance Company of New York (“Jackson NY”), and are primarily sold to their separate accounts that are registered as investment companies under the 1940 Act and 1933 Act and through which those variable products are offered. Certain Funds are also sold to participants in non-qualified retirement plans of Jackson and its affiliates. JNAM also serves as the investment adviser to certain Funds operating as “Fund of Funds” that invest in a specified selection of the affiliated Funds. JNAM also currently serves as investment adviser to certain Funds (“Feeder Funds”) that invest in specified unaffiliated funds (“Master Funds”) in what is known as a Master Feeder fund structure. JNAM may select certain exchange traded funds (each an “ETF,” and collectively, “ETFs”)

as investments for the “Fund of ETF Funds,” however, sub-adviser(s) conduct trading and portfolio reviews of those ETF selections. [1] Prudential plc holds a minority economic interest in Jackson Financial Inc. Prudential plc has no relation to Newark, New Jersey-based Prudential Financial, Inc. B. Describe the types of advisory services you offer. If you hold yourself out as specializing in a particular type of advisory service, such as financial planning, quantitative analysis, or market timing, explain the nature of that service in greater detail. If you provide investment advice only with respect to limited types of investments, explain the type of investment advice you offer, and disclose that your advice is limited to those types of investments. As authorized by the U.S. Securities and Exchange Commission (“SEC”), JNAM is a “Manager of Managers,” which means it is primarily responsible for supervising, reviewing, and monitoring the implementation by the Sub- Advisers of the investment objectives of the Funds, and recommending changes in the Sub-Advisers’ investment strategies or methods, from time to time, if deemed necessary or advisable by JNAM. JNAM does not have any private or retail investment advisory clients. JNAM does not have any government entity clients. JNAM’s only investment advisory clients are the Funds. JNAM also serves as the investment adviser to certain affiliated Fund of Funds and Feeder Funds. With regard to the limited number of Funds that are Funds of Funds or Feeder Funds, that are described in the section entitled “Types of Clients,” JNAM may play a greater investment advisory role in the selection of affiliated Funds and the recommendations of Master Funds. Please refer to the prospectuses for the Funds for detailed information about the Funds and the Sub-Advisers. C. Explain whether (and, if so, how) you tailor your advisory services to the individual needs of clients. Explain whether clients may impose restrictions on investing in certain securities or types of securities. JNAM’s only investment advisory clients are the Funds. Each Fund has its own investment objective and principal investment strategies. D. If you participate in wrap fee programs by providing portfolio management services, (1) describe the differences, if any, between how you manage wrap fee accounts and how you manage other accounts, and (2) explain that you receive a portion of the wrap fee for your services. Not applicable. E. If you manage client assets, disclose the amount of client assets you manage on a discretionary basis and the amount of client assets you manage on a non-discretionary basis. Disclose the date “as of” which you calculated the amounts. Note: Your method for computing the amount of “client assets you manage” can be different from the method for computing “assets under management” required for Item 5.F in Part 1A. However, if you choose to use a different method to compute “client assets you manage,” you must keep documentation describing the method you use. The amount you disclose may be rounded to the nearest $100,000. Your “as of” date must not be more than 90 days before the date you last updated your brochure in response to this Item 4.E. As of December 31, 2022, JNAM had $ 222,731,514,408 in assets under management. JNAM is a Manager of Managers and oversees the Sub-Advisers to the Funds. The Sub-Advisers have discretionary authority over the assets of the Funds. JNAM has discretionary authority over the certain of the Fund of Funds.