SERES THERAPEUTICS INC

CUSIP: 81750R102 Class: Common Stock

WELLINGTON MANAGEMENT GROUP LLP's Holding History (CIK: 0000902219)

Note: Option positions (PUT/CALL) are excluded.

Q2 2017

Shares 159,329 Value ($000) $1,800 Avg Close — Range —

Q1 2017

Shares 185,535 Value ($000) $2,091 Avg Close — Range —

Q4 2016

Shares 191,476 Value ($000) $1,896 Avg Close — Range —

Q3 2016

Shares 180,076 Value ($000) $2,213 Avg Close — Range —

Q2 2016

Shares 22,500 Value ($000) $654 Avg Close — Range —

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2017	159,329	$1,800	—	—
Q1 2017	185,535	$2,091	—	—
Q4 2016	191,476	$1,896	—	—
Q3 2016	180,076	$2,213	—	—
Q2 2016	22,500	$654	—	—