REPLIGEN CORP

Ticker: RGEN CUSIP: 759916109 Class: Common Stock

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP's Holding History (CIK: 0001164508)

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

Q4 2021

Shares 144,517 Value ($000) $38,274 Avg Close $269.41 Range $243.29 - $306.98

Q3 2021

Shares 193,839 Value ($000) $56,018 Avg Close $256.54 Range $193.03 - $327.32

Q2 2021

Shares 208,288 Value ($000) $41,578 Avg Close $193.99 Range $162.29 - $223.03

Q1 2021

Shares 251,671 Value ($000) $48,927 Avg Close $205.03 Range $173.09 - $228.84

Q4 2020

Shares 312,000 Value ($000) $59,789 Avg Close $181.94 Range $146.52 - $212.55

Q3 2020

Shares 243,478 Value ($000) $35,923 Avg Close $142.94 Range $120.12 - $159.97

Q2 2020

Shares 87,195 Value ($000) $10,778 Avg Close $117.64 Range $92.00 - $143.93

Q2 2019

Shares 11,864 Value ($000) $1,020 Avg Close $68.16 Range $52.87 - $86.16

Q1 2019

Shares 48,997 Value ($000) $2,895 Avg Close $57.51 Range $49.07 - $63.41

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2021	144,517	$38,274	$269.41	$243.29 - $306.98
Q3 2021	193,839	$56,018	$256.54	$193.03 - $327.32
Q2 2021	208,288	$41,578	$193.99	$162.29 - $223.03
Q1 2021	251,671	$48,927	$205.03	$173.09 - $228.84
Q4 2020	312,000	$59,789	$181.94	$146.52 - $212.55
Q3 2020	243,478	$35,923	$142.94	$120.12 - $159.97
Q2 2020	87,195	$10,778	$117.64	$92.00 - $143.93
Q2 2019	11,864	$1,020	$68.16	$52.87 - $86.16
Q1 2019	48,997	$2,895	$57.51	$49.07 - $63.41