REPLIGEN CORP

Ticker: RGEN CUSIP: 759916109 Class: Common Stock

GSA CAPITAL PARTNERS LLP's Holding History (CIK: 0001362033)

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

Q3 2025

Shares 7,449 Value ($000) $1 Avg Close $121.47 Range $110.77 - $135.57

Q2 2025

Shares 4,208 Value ($000) $1 Avg Close $127.25 Range $102.97 - $148.94

Q1 2025

Shares 3,215 Value ($000) $0 Avg Close $153.93 Range $125.39 - $182.52

Q1 2024

Shares 1,794 Value ($000) $0 Avg Close $190.44 Range $167.40 - $211.13

Q3 2019

Shares 6,012 Value ($000) $461 Avg Close $87.47 Range $75.80 - $99.25

Q2 2019

Shares 2,916 Value ($000) $251 Avg Close $68.16 Range $52.87 - $86.16

Q4 2018

Shares 8,277 Value ($000) $437 Avg Close $58.65 Range $48.26 - $70.50

Q3 2018

Shares 4,033 Value ($000) $224 Avg Close $51.54 Range $45.00 - $58.99

Q2 2018

Shares 5,323 Value ($000) $250 Avg Close $41.16 Range $34.61 - $47.87

Q4 2017

Shares 6,507 Value ($000) $236 Avg Close $36.20 Range $31.96 - $40.05

Q3 2016

Shares 95,345 Value ($000) $2,878 Avg Close $30.18 Range $25.93 - $33.79

Q2 2016

Shares 114,123 Value ($000) $3,122 Avg Close $25.57 Range $21.11 - $28.97

Q1 2016

Shares 120,415 Value ($000) $3,230 Avg Close $24.47 Range $20.07 - $28.85

Q4 2015

Shares 132,404 Value ($000) $3,746 Avg Close $28.84 Range $21.69 - $36.00

Q3 2015

Shares 119,521 Value ($000) $3,329 Avg Close $36.14 Range $27.25 - $42.22

Q2 2015

Shares 95,244 Value ($000) $3,931 Avg Close $36.64 Range $28.88 - $42.48

Q1 2015

Shares 124,935 Value ($000) $3,793 Avg Close $25.94 Range $19.53 - $34.15

Q4 2014

Shares 119,403 Value ($000) $2,364 Avg Close $22.36 Range $19.02 - $26.75

Q3 2014

Shares 97,749 Value ($000) $1,946 Avg Close $21.05 Range $18.23 - $24.68

Q2 2014

Shares 76,093 Value ($000) $1,734 Avg Close $17.80 Range $12.60 - $23.14

Q1 2014

Shares 84,193 Value ($000) $1,083 Avg Close $14.34 Range $11.70 - $17.26

Q4 2013

Shares 104,893 Value ($000) $1,431 Avg Close $11.94 Range $9.89 - $14.05

Q3 2013

Shares 88,145 Value ($000) $978 Avg Close $9.95 Range $8.25 - $11.44

Q2 2013

Shares 80,145 Value ($000) $660 Avg Close $8.40 Range $6.65 - $9.65

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	7,449	$1	$121.47	$110.77 - $135.57
Q2 2025	4,208	$1	$127.25	$102.97 - $148.94
Q1 2025	3,215	$0	$153.93	$125.39 - $182.52
Q1 2024	1,794	$0	$190.44	$167.40 - $211.13
Q3 2019	6,012	$461	$87.47	$75.80 - $99.25
Q2 2019	2,916	$251	$68.16	$52.87 - $86.16
Q4 2018	8,277	$437	$58.65	$48.26 - $70.50
Q3 2018	4,033	$224	$51.54	$45.00 - $58.99
Q2 2018	5,323	$250	$41.16	$34.61 - $47.87
Q4 2017	6,507	$236	$36.20	$31.96 - $40.05
Q3 2016	95,345	$2,878	$30.18	$25.93 - $33.79
Q2 2016	114,123	$3,122	$25.57	$21.11 - $28.97
Q1 2016	120,415	$3,230	$24.47	$20.07 - $28.85
Q4 2015	132,404	$3,746	$28.84	$21.69 - $36.00
Q3 2015	119,521	$3,329	$36.14	$27.25 - $42.22
Q2 2015	95,244	$3,931	$36.64	$28.88 - $42.48
Q1 2015	124,935	$3,793	$25.94	$19.53 - $34.15
Q4 2014	119,403	$2,364	$22.36	$19.02 - $26.75
Q3 2014	97,749	$1,946	$21.05	$18.23 - $24.68
Q2 2014	76,093	$1,734	$17.80	$12.60 - $23.14
Q1 2014	84,193	$1,083	$14.34	$11.70 - $17.26
Q4 2013	104,893	$1,431	$11.94	$9.89 - $14.05
Q3 2013	88,145	$978	$9.95	$8.25 - $11.44
Q2 2013	80,145	$660	$8.40	$6.65 - $9.65