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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1339469	Chiasma Inc	CHMA	Pharmaceutical Preparations (2834)	000000000

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1647053	Roni Mamluk	C/O Chiasma, Inc. 460 Totten Pond Road, Suite 530 Waltham MA 02451		Yes	No	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2018-03-19	2,389	$0.09	2,389	No	4	M	Direct
Common Stock	Disposition	2018-03-19	2,389	$1.53	0	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Stock Option (Right to Buy)	Disposition	2018-03-19	2,389	$0.00	2,389	$0.09

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
2,389		2018-10-14	No	4	M	Direct

Footnotes

The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.
This transaction was executed in multiple trades at prices ranging from $1.50 to $1.55. The price reported above reflects the weighted average 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.
This option is fully vested and exerciseable.