REPLIGEN CORP

Ticker: RGEN CUSIP: 759916109 Class: Common Stock

Entropy Technologies, LP's Holding History (CIK: 0001976151)

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

Q4 2025

Shares 5,493 Value ($000) $900 Avg Close $156.63 Range $134.19 - $174.01

Q3 2025

Shares 2,783 Value ($000) $372 Avg Close $121.47 Range $110.77 - $135.57

Q2 2025

Shares 10,766 Value ($000) $1,339 Avg Close $127.25 Range $102.97 - $148.94

Q3 2024

Shares 2,500 Value ($000) $372 Avg Close $143.39 Range $117.63 - $172.65

Q2 2024

Shares 3,075 Value ($000) $388 Avg Close $156.74 Range $113.50 - $184.98

Q1 2024

Shares 3,474 Value ($000) $639 Avg Close $190.44 Range $167.40 - $211.13

Q4 2023

Shares 6,607 Value ($000) $1,188 Avg Close $155.67 Range $110.45 - $188.31

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	5,493	$900	$156.63	$134.19 - $174.01
Q3 2025	2,783	$372	$121.47	$110.77 - $135.57
Q2 2025	10,766	$1,339	$127.25	$102.97 - $148.94
Q3 2024	2,500	$372	$143.39	$117.63 - $172.65
Q2 2024	3,075	$388	$156.74	$113.50 - $184.98
Q1 2024	3,474	$639	$190.44	$167.40 - $211.13
Q4 2023	6,607	$1,188	$155.67	$110.45 - $188.31