Penumbra Inc — Director's Dealing 2016

Sep 9, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Penumbra Inc (PEN)
CIK: 0001321732
Period of Report: 2016-09-07

Reporting Person: Bose Arani (Director, Chief Innovator)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-09-07	Common Stock	M	14000	$1.26	Acquired	746191	Direct
2016-09-07	Common Stock	S	14000	$70.98	Disposed	732191	Direct
2016-09-08	Common Stock	M	36000	$1.26	Acquired	768191	Direct
2016-09-08	Common Stock	S	8884	$70.71	Disposed	759307	Direct
2016-09-08	Common Stock	S	27116	$71.59	Disposed	732191	Direct
2016-09-09	Common Stock	M	7200	$1.26	Acquired	739391	Direct
2016-09-09	Common Stock	S	3276	$68.67	Disposed	736115	Direct
2016-09-09	Common Stock	S	400	$69.72	Disposed	735715	Direct
2016-09-09	Common Stock	S	3524	$70.65	Disposed	732191	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2016-09-07	Stock Option (right to buy)	$1.26	M	14000	Disposed	2017-04-30	Common Stock (14000.0)	Direct
2016-09-08	Stock Option (right to buy)	$1.26	M	36000	Disposed	2017-04-30	Common Stock (36000.0)	Direct
2016-09-09	Stock Option (right to buy)	$1.26	M	7200	Disposed	2017-04-30	Common Stock (7200.0)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	250000	Indirect
Common Stock	250000	Indirect

Footnotes

F1: The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan.

F2: This transaction was executed in multiple trades at prices ranging from $70.51 to $71.34. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3: This transaction was executed in multiple trades at prices ranging from $70.27 to $71.26. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F4: This transaction was executed in multiple trades at prices ranging from $71.27 to $71.82. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F5: This transaction was executed in multiple trades at prices ranging from $68.38 to $69.19. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F6: This transaction was executed in multiple trades at prices ranging from $69.57 to $69.98. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F7: This transaction was executed in multiple trades at prices ranging from $70.44 to $70.82. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F8: Shares are held by the Shumita Bose 2009 Family Trust.

F9: Shares are held by the Arani Bose 2009 Family Trust.

F10: All shares are vested and exercisable.