REPLIGEN CORP

Ticker: RGEN CUSIP: 759916109 Class: Common Stock

BALYASNY ASSET MANAGEMENT L.P.'s Holding History (CIK: 0001218710)

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

Q4 2025

Shares 115,053 Value ($000) $18,853 Avg Close $156.63 Range $134.19 - $174.01

Q3 2025

Shares 767,239 Value ($000) $102,557 Avg Close $121.47 Range $110.77 - $135.57

Q2 2025

Shares 156,402 Value ($000) $19,453 Avg Close $127.25 Range $102.97 - $148.94

Q1 2025

Shares 50,150 Value ($000) $6,381 Avg Close $153.93 Range $125.39 - $182.52

Q1 2024

Shares 77,176 Value ($000) $14,194 Avg Close $190.44 Range $167.40 - $211.13

Q1 2023

Shares 80,772 Value ($000) $13,599 Avg Close $178.42 Range $147.53 - $200.98

Q4 2022

Shares 127,729 Value ($000) $21,626 Avg Close $181.39 Range $158.58 - $225.62

Q3 2022

Shares 1,214 Value ($000) $227 Avg Close $210.87 Range $157.33 - $262.26

Q4 2021

Shares 1,925 Value ($000) $510 Avg Close $269.41 Range $243.29 - $306.98

Q2 2021

Shares 56,185 Value ($000) $11,216 Avg Close $193.99 Range $162.29 - $223.03

Q1 2021

Shares 151,008 Value ($000) $29,357 Avg Close $205.03 Range $173.09 - $228.84

Q4 2020

Shares 109,268 Value ($000) $20,939 Avg Close $181.94 Range $146.52 - $212.55

Q3 2020

Shares 126,232 Value ($000) $18,624 Avg Close $142.94 Range $120.12 - $159.97

Q2 2020

Shares 83,496 Value ($000) $10,321 Avg Close $117.64 Range $92.00 - $143.93

Q1 2020

Shares 35,850 Value ($000) $3,461 Avg Close $96.54 Range $78.41 - $109.94

Q2 2019

Shares 15,109 Value ($000) $1,299 Avg Close $68.16 Range $52.87 - $86.16

Q1 2019

Shares 8,043 Value ($000) $475 Avg Close $57.51 Range $49.07 - $63.41

Q4 2018

Shares 18,677 Value ($000) $985 Avg Close $58.65 Range $48.26 - $70.50

Q2 2018

Shares 57,622 Value ($000) $2,711 Avg Close $41.16 Range $34.61 - $47.87

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	115,053	$18,853	$156.63	$134.19 - $174.01
Q3 2025	767,239	$102,557	$121.47	$110.77 - $135.57
Q2 2025	156,402	$19,453	$127.25	$102.97 - $148.94
Q1 2025	50,150	$6,381	$153.93	$125.39 - $182.52
Q1 2024	77,176	$14,194	$190.44	$167.40 - $211.13
Q1 2023	80,772	$13,599	$178.42	$147.53 - $200.98
Q4 2022	127,729	$21,626	$181.39	$158.58 - $225.62
Q3 2022	1,214	$227	$210.87	$157.33 - $262.26
Q4 2021	1,925	$510	$269.41	$243.29 - $306.98
Q2 2021	56,185	$11,216	$193.99	$162.29 - $223.03
Q1 2021	151,008	$29,357	$205.03	$173.09 - $228.84
Q4 2020	109,268	$20,939	$181.94	$146.52 - $212.55
Q3 2020	126,232	$18,624	$142.94	$120.12 - $159.97
Q2 2020	83,496	$10,321	$117.64	$92.00 - $143.93
Q1 2020	35,850	$3,461	$96.54	$78.41 - $109.94
Q2 2019	15,109	$1,299	$68.16	$52.87 - $86.16
Q1 2019	8,043	$475	$57.51	$49.07 - $63.41
Q4 2018	18,677	$985	$58.65	$48.26 - $70.50
Q2 2018	57,622	$2,711	$41.16	$34.61 - $47.87