Penumbra Inc — Director's Dealing 2017

Feb 6, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Penumbra Inc (PEN)
CIK: 0001321732
Period of Report: 2017-02-02

Reporting Person: Bose Arani (Director, Chief Innovator)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-02-02	Common Stock	M	4500	$1.26	Acquired	736691	Direct
2017-02-02	Common Stock	S	2798	$69.80	Disposed	733893	Direct
2017-02-02	Common Stock	S	1702	$70.55	Disposed	732191	Direct
2017-02-03	Common Stock	M	8000	$1.26	Acquired	740191	Direct
2017-02-03	Common Stock	S	2500	$69.77	Disposed	737691	Direct
2017-02-03	Common Stock	S	5500	$70.61	Disposed	732191	Direct
2017-02-06	Common Stock	M	4600	$1.26	Acquired	736791	Direct
2017-02-06	Common Stock	S	2340	$69.04	Disposed	734451	Direct
2017-02-06	Common Stock	S	2260	$69.65	Disposed	732191	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-02-02	Stock Option (right to buy)	$1.26	M	4500	Disposed	2017-09-30	Common Stock (4500.0)	Direct
2017-02-03	Stock Option (right to buy)	$1.26	M	8000	Disposed	2017-09-30	Common Stock (8000.0)	Direct
2017-02-06	Stock Option (right to buy)	$1.26	M	4600	Disposed	2017-09-30	Common Stock (4600.0)	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 $69.30 to $70.20. 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 $70.30 to $70.80. 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 $69.20 to $70.10. 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 $70.20 to $70.95. 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 $68.45 to $69.40. 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 $69.45 to $70.00. 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 Arani Bose 2009 Family Trust.

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

F10: All shares are vested and exercisable.