REPLIGEN CORP

Ticker: RGEN CUSIP: 759916109 Class: Common Stock

PERCEPTIVE ADVISORS LLC's Holding History (CIK: 0001224962)

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

Q4 2025

Shares 315,541 Value ($000) $51,705 Avg Close $156.63 Range $134.19 - $174.01

Q3 2025

Shares 270,428 Value ($000) $36,148 Avg Close $121.47 Range $110.77 - $135.57

Q2 2025

Shares 166,000 Value ($000) $20,647 Avg Close $127.25 Range $102.97 - $148.94

Q1 2025

Shares 129,801 Value ($000) $16,516 Avg Close $153.93 Range $125.39 - $182.52

Q2 2021

Shares 132,500 Value ($000) $26,450 Avg Close $193.99 Range $162.29 - $223.03

Q4 2020

Shares 97,500 Value ($000) $18,684 Avg Close $181.94 Range $146.52 - $212.55

Q3 2017

Shares 87,400 Value ($000) $3,349 Avg Close $41.91 Range $35.73 - $46.12

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	315,541	$51,705	$156.63	$134.19 - $174.01
Q3 2025	270,428	$36,148	$121.47	$110.77 - $135.57
Q2 2025	166,000	$20,647	$127.25	$102.97 - $148.94
Q1 2025	129,801	$16,516	$153.93	$125.39 - $182.52
Q2 2021	132,500	$26,450	$193.99	$162.29 - $223.03
Q4 2020	97,500	$18,684	$181.94	$146.52 - $212.55
Q3 2017	87,400	$3,349	$41.91	$35.73 - $46.12