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Class Z Shares | Alger Mid Cap Focus Fund

ALGER MID CAP FOCUS FUND

Investment Objective

Alger Mid Cap Focus Fund seeks long-term capital appreciation.

Fund Fees and Expenses

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. Investors may also incur brokerage commissions and other charges when buying or selling shares of the Fund, which are not reflected in the Example that follows.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	Class Z Shares Alger Mid Cap Focus Fund Class Z USD ($)
Shareholder Fees (fees paid directly from your investment)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	Class Z Shares Alger Mid Cap Focus Fund Class Z
Advisory Fees	0.70%
Distribution and/or Service (12b-1) Fees	none
Other Expenses	1.16%	[1]
Total Annual Fund Operating Expenses	1.86%
Fee Waiver and/or Expense Reimbursement	(0.87%)	[2]
Total Annual Fund Operating Expenses	0.99%	[3]

Example

The following example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. The one-year example and the first year of the three-year examples are based on net operating expenses, which reflect the contractual expense limitation agreed to by Fred Alger Management, LLC. Although your actual costs may be higher or lower, based on these assumptions you would pay the following expenses whether or not you redeemed your shares at the end of each period:

Expense Example	1 Year	3 Years
Class Z Shares | Alger Mid Cap Focus Fund | Class Z | USD ($)	101	500

Expense Example, No Redemption	1 Year	3 Years
Class Z Shares | Alger Mid Cap Focus Fund | Class Z | USD ($)	101	500

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the period since the Fund's inception through October 31, 2019, the Fund’s portfolio turnover rate was 65.50% of the average value of its portfolio.

Principal Investment Strategy

Fred Alger Management, LLC believes companies undergoing Positive Dynamic Change offer the best investment opportunities. Positive Dynamic Change refers to companies realizing High Unit Volume Growth or companies undergoing Positive Lifecycle Change. High Unit Volume Growth companies are traditional growth companies experiencing, for example, rapidly growing demand or market dominance. Positive Lifecycle Change companies are, for example, companies benefitting from new regulations, a new product innovation or new management.

Under normal circumstances, the Fund invests at least 80% of its net assets, plus any borrowings for investment purposes, in equity securities of mid-cap companies. For these purposes, “mid-cap companies” are those companies that, at the time of purchase of the securities, have total market capitalization within the range of (i) companies included in the Russell MidCap Growth Index, as reported by the index at the most recent quarter end, or (ii) $1 billion to $30 billion. At December 31, 2019, the companies in this index ranged from $1.52 billion to $78.61 billion. Because of the Fund’s long-term approach to investing, it could have a significant portion of its assets invested in securities of issuers that have appreciated beyond the market capitalization thresholds noted. Equity securities include common or preferred stocks that are listed on U.S. or foreign exchanges.

In addition, under normal market conditions, the Fund invests at least 25% of its total assets in companies in the following group of industries: Health Care Equipment & Supplies, Health Care Technology, Biotechnology, Life Sciences Tools & Services, and/or Software, as defined by third party sources. The Fund may have 25% or more of its total assets invested in any one of these industries.

As a focus fund, the Fund intends to invest a substantial portion of its assets in a smaller number of issuers. Generally the Fund will own approximately 50 holdings. Fund holdings may occasionally exceed this number for a variety of reasons.

The Fund’s portfolio manager(s) may sell a stock when it reaches a target price, it fails to perform as expected, or other opportunities appear more attractive. As a result, the Fund may engage in active trading of portfolio securities.

Principal Risks

An investment in the Fund involves risks. The Fund’s share price may go down, which means you could lose money. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Investment Risk – An investment in the Fund is subject to investment risk, including the possible loss of the entire principal amount that you invest.

Market Risk – Your investment in Fund shares represents an indirect investment in the securities owned by the Fund. The value of these securities, like other investments, may move up or down, sometimes rapidly and unpredictably. Your Fund shares at any point in time may be worth less than what you invested, even after taking into account the reinvestment of Fund dividends and distributions.

Mid Cap Securities Risk – There may be greater risk in investing in medium-capitalization companies rather than larger, more established companies due to such factors as inexperienced management and limited product lines or financial resources. It may also be difficult or impossible to liquidate a security position at a time and price acceptable to the Fund because of the potentially less frequent trading of stocks of smaller market capitalization.

Equity Securities Risk – As with any fund that invests in stocks, your investment will fluctuate in value, and the loss of your investment is a risk of investing. The Fund’s price per share will fluctuate due to changes in the market prices of its investments. Also, the Fund’s investments may not grow as fast as the rate of inflation and stocks tend to be more volatile than some other investments you could make, such as bonds.

Concentration Risk – By focusing on an industry or a group of industries, the Fund carries much greater risks of adverse developments and price movements in such industries than a fund that invests in a wider variety of industries. Because the Fund concentrates in a specific industry or group of industries, there is also the risk that the Fund will perform poorly during a slump in demand for securities of companies in such industries.

Small Number of Holdings Risk – Under normal circumstances, the Fund invests in a less than 50-stock portfolio. Therefore, the Fund’s performance may be more vulnerable to changes in the market value of a single issuer and more susceptible to risks associated with a single economic, political, or regulatory occurrence than a fund that has a higher number of holdings.

Growth Stocks Risk – Prices of growth stocks tend to be higher in relation to their companies’ earnings and may be more sensitive to market, political and economic developments than other stocks, making their prices more volatile. An investment in the Fund may be better suited to investors who seek long-term capital growth and can tolerate fluctuations in their investment’s value.

Non-Diversification Risk – The Fund is a non-diversified investment company. Therefore, the Fund’s performance may be more vulnerable to changes in the market value of a single issuer and more susceptible to risks associated with a single economic, political, or regulatory occurrence than a fund that has a diversified portfolio.

Technology Companies Risk – The Fund may have a significant portion of its assets invested in securities of technology companies. Many technology companies’ securities have historically been more volatile than other securities, especially over the short term. Technology companies may also face increased competition, government regulation, and risk of obsolescence due to progress in technological developments.

Healthcare Companies Risk – The Fund may have a significant portion of its assets invested in securities of healthcare companies. At times, the performance of healthcare companies will lag the performance of other industries or the broader market as a whole, and the performance of such companies may be more volatile. Healthcare companies may also be significantly affected by intense competition, aggressive pricing, government regulation, technological innovations, product obsolescence, patent considerations, product compatibility and consumer preferences.

Portfolio Turnover (Active Trading) Risk – Because the Fund may engage in active trading of portfolio securities, it may incur increased transaction costs and brokerage commissions, both of which can lower the actual return on an investment. Active trading may also increase short-term gains and losses, which may affect the taxes a shareholder has to pay.

Performance

No performance information will be presented until the Fund has been in operation for a full calendar year. Annual performance information gives some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance will be available at www.alger.com within a reasonable amount of time after the Fund commences operations.

[1] Other Expenses are based on estimated expenses for the current fiscal year.

[2] Fred Alger Management, LLC has contractually agreed to reimburse Fund expenses (excluding acquired fund fees and expenses, dividend expense on short sales, borrowing costs, interest, taxes, brokerage and extraordinary expenses) through February 28, 2021 to the extent necessary to limit the total annual fund operating expenses of the Class Z Shares of the Fund to .99% of the class's average daily net assets. This expense reimbursement may only be amended or terminated prior to its expiration date by agreement between Fred Alger Management, LLC and the Fund’s Board of Trustees, and will terminate automatically in the event of termination of the Investment Advisory Agreement.

[3] After Fee Waiver and/or Expense Reimbursement