Olivier Loeillot Repligen Corp (RGEN) insider trading activity

Olivier Loeillot is Chief Executive Officer of REPLIGEN CORP. Currently has a direct ownership of 42,939 shares of RGEN, which is worth approximately $6.4 Million. The most recent transaction as insider was on Oct 02, 2025, when has been sold 1,248 shares (Common Stock) at a price of $145.23 per share, resulting in proceeds of $181,247. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 42.9K

8.04% 3M change

28.49% 12M change

Total Value Held $6.4 Million

Olivier Loeillot Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Oct 02 2025	SELL Payment of exercise price or tax liability	$181,247 $145.23 p/Share	1,248 Reduced 2.82%	42,939 Common Stock
Sep 03 2025	SELL Payment of exercise price or tax liability	$291,147 $116.18 p/Share	2,506 Reduced 5.37%	44,187 Common Stock
Mar 03 2025	BUY Grant, award, or other acquisition	-	14,480 Added 23.67%	46,693 Common Stock
Feb 27 2025	SELL Payment of exercise price or tax liability	$53,693 $156.54 p/Share	343 Reduced 1.05%	32,213 Common Stock
Nov 20 2024	SELL Payment of exercise price or tax liability	$106,256 $123.41 p/Share	861 Reduced 2.58%	32,556 Common Stock
Sep 03 2024	BUY Grant, award, or other acquisition	-	17,631 Added 34.54%	33,417 Common Stock
Feb 27 2024	BUY Grant, award, or other acquisition	-	2,880 Added 15.43%	15,786 Common Stock
Oct 02 2023	BUY Grant, award, or other acquisition	-	12,906 Added 50.0%	12,906 Common Stock

Olivier Loeillot

Chief Executive Officer

Waltham, MA

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