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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1481512	Ra Pharmaceuticals Inc.	RARX	Pharmaceutical Preparations (2834)	262908274

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1688199	Simon Read	C/O Ra Pharmaceuticals, Inc. 87 Cambridgepark Drive Cambridge MA 02140	Chief Scientific Officer	No	Yes	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	2019-12-17	10,000	$2.87	16,234	No	4	M	Direct
Common Stock	Disposition	2019-12-17	10,000	$47.08	6,234	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 Options (Right to buy)	Disposition	2019-12-17	10,000	$0.00	10,000	$2.87

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
46,142		2026-06-16	No	4	M	Direct

Footnotes

The sale reported in the Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 16, 2019.
The price reported is a weighted average price. The shares were sold in multiple transactions at per share prices ranging from $47.05 to $47.12. The Reporting Person undertakes to provide upon request to the SEC staff, the Issuer, or any stockholder of the Issuer, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
These stock options vest over four (4) years beginning on April 4, 2016, at a rate of twenty-five percent (25%) after 12 months, and in thirty-six (36) equal monthly installments thereafter.