REPLIGEN CORP

Ticker: RGEN CUSIP: 759916109 Class: Common Stock

Blue Whale Capital LLP's Holding History (CIK: 0001801547)

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

Q4 2025

Shares 308,467 Value ($000) $50,545 Avg Close $156.63 Range $134.19 - $174.01

Q3 2025

Shares 243,101 Value ($000) $32,495 Avg Close $121.47 Range $110.77 - $135.57

Q2 2025

Shares 287,686 Value ($000) $35,782 Avg Close $127.25 Range $102.97 - $148.94

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	308,467	$50,545	$156.63	$134.19 - $174.01
Q3 2025	243,101	$32,495	$121.47	$110.77 - $135.57
Q2 2025	287,686	$35,782	$127.25	$102.97 - $148.94