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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1235010	Momenta Pharmaceuticals Inc	MNTA	Biological Products, (No Disgnostic Substances) (2836)	043561634

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1256088	Georges Gemayel	C/O Momenta Pharmaceuticals, Inc. 301 Binney Street Cambridge MA 02142		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	2020-07-29	10,000	$14.84	24,090	No	4	M	Direct
Common Stock	Disposition	2020-07-29	10,000	$30.00	14,090	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	2020-07-29	10,000	$0.00	10,000	$14.84

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
20,000	2017-01-01	2026-01-01	No	4	M	Direct

Footnotes

This transaction was effected pursuant to a Rule 10b5-1 trading plan dated May 28, 2020
This transaction was executed in multiple trades at prices ranging from $30.00 to $30.03. 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 sold at each separate price within the ranges set forth in this footnote.