UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934 (Amendment No.     )

Filed by the Registrant x

Filed by a Party other than the Registrant o

Check the appropriate box:

o						Preliminary Proxy Statement
o						Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
o						Definitive Proxy Statement
x						Definitive Additional Materials
o						Soliciting Material under §240.14a-12

Penumbra, Inc.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement if Other Than the Registrant)

Payment of Filing Fee (Check the appropriate box):

x						No fee required.
o						Fee previously paid with preliminary materials.
o						Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11.

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