AGIOS PHARMACEUTICALS, INC. — Director's Dealing 2017

Oct 4, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AGIOS PHARMACEUTICALS INC (AGIO)
CIK: 0001439222
Period of Report: 2017-10-02

Reporting Person: Schenkein David P (Director, Chief Executive Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-10-02	Common stock	M	6000	$0.3025	Acquired	6000	Direct
2017-10-02	Common stock	S	6000	$66.76	Disposed	0	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-10-02	Stock option (right to buy)	$0.3025	M	6000	Disposed	2019-08-12	Common stock (6000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common stock	271772	Indirect
Common stock	79082	Indirect

Footnotes

F1: This exercise was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F2: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F3: The price reported is the weighted average of the shares sold. The shares were sold at varying prices in the range of $66.21 to $67.18. The
reporting person undertakes, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer,
to provide full information regarding the number of shares sold at each separate price.

F4: Shares held by David P. Schenkein 2004 Revocable Trust, of which the reporting person is trustee and beneficiary.

F5: Shares held by Amy P. Schenkein 2004 Revocable Trust, of which the reporting person's spouse is trustee and beneficiary.

F6: This option was granted on August 13, 2009. The shares underlying this option vest as to 25% of the shares on August 1, 2010, with the remaining 75% vesting in 36 equal monthly installments thereafter.