Jan. 11, 2017
Alger MidCap Growth Fund
Alger MidCap Growth Fund
THE ALGER FUNDS Alger Mid Cap Growth Fund Supplement Dated January 11, 2017 to the Prospectus Dated March 1, 2016 As Revised October 14, 2016 As Supplemented to Date
The following replaces the last sentence in the second paragraph under the heading “Principal Investment Strategy” on page 14 of the Prospectus: “At December 31, 2016, the market capitalization of the companies in these indexes ranged from $394.9 million to $56.9 billion.”

Principal investment strategies of the Fund. Summarize how the Fund intends to achieve its investment objectives by identifying the Fund's principal investment strategies (including the type or types of securities in which the Fund invests or will invest principally) and any policy to concentrate in securities of issuers in a particular industry or group of industries.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 4
-Subsection a

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