REPLIGEN CORP

Ticker: RGEN CUSIP: 759916109 Class: Common Stock

ADAMS DIVERSIFIED EQUITY FUND, INC.'s Holding History (CIK: 0000002230)

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

Q2 2019

Shares 1,700 Value ($000) $146 Avg Close $68.16 Range $52.87 - $86.16

Q1 2019

Shares 2,700 Value ($000) $160 Avg Close $57.51 Range $49.07 - $63.41

Q4 2017

Shares 13,100 Value ($000) $475 Avg Close $36.20 Range $31.96 - $40.05

Q3 2017

Shares 16,900 Value ($000) $648 Avg Close $41.91 Range $35.73 - $46.12

Q2 2017

Shares 17,500 Value ($000) $725 Avg Close $38.00 Range $32.73 - $46.81

Q1 2017

Shares 20,800 Value ($000) $732 Avg Close $31.67 Range $28.48 - $35.61

Q4 2016

Shares 20,200 Value ($000) $623 Avg Close $30.93 Range $26.16 - $34.06

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2019	1,700	$146	$68.16	$52.87 - $86.16
Q1 2019	2,700	$160	$57.51	$49.07 - $63.41
Q4 2017	13,100	$475	$36.20	$31.96 - $40.05
Q3 2017	16,900	$648	$41.91	$35.73 - $46.12
Q2 2017	17,500	$725	$38.00	$32.73 - $46.81
Q1 2017	20,800	$732	$31.67	$28.48 - $35.61
Q4 2016	20,200	$623	$30.93	$26.16 - $34.06