Repligen Ownership & Insider Activity

Repligen (RGEN) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 4.6% of shares outstanding. Institutional investors hold 93.2%. Over the past 90 days, insiders made 3 sales worth $1.5M.

Shares Outstanding

63.490M

Shares Float

63.322M

Insider Shares Owned

2.569M

Insider % Owned

4.6%

Institutional Shares Held

52.616M

Institutional % Held

93.2%

Ownership Breakdown

Net Insider Activity by Month

Purchases (90d)

Sales (90d)

$1.5M total

Net Activity

Net Selling

Net Value (90d)

-$1.5M

Repligen Insider Transactions (Last 6 Months)

Date	Insider	Title	Type	Shares	Price	Value
Oct 5, 2026	Olivier Loeillot	CHIEF EXECUTIVE OFFICER	SELL	1.333K	$171.13	$386K
Sep 24, 2026	Olivier Loeillot	CHIEF EXECUTIVE OFFICER	SELL-OPTIONS	—	$172.55	$452K
Sep 21, 2026	Olivier Loeillot	CHIEF EXECUTIVE OFFICER	SELL-OPTIONS	—	$160.89	$207K
Sep 3, 2026	Olivier Loeillot	CHIEF EXECUTIVE OFFICER	SELL	5.877K	$167.69	$986K
Aug 20, 2026	Olivier Loeillot	CHIEF EXECUTIVE OFFICER	SELL-OPTIONS	—	$160.89	$207K
Jul 16, 2026	Jason Garland	CFO	SELL	530.000	$150.00	$80K
Jun 25, 2026	Jason Garland	CFO	SELL	733.000	$145.00	$106K
Apr 21, 2026	Olivier Loeillot	CHIEF EXECUTIVE OFFICER	SELL	3.832K	$140.00	$536K

Date	Member	Party	Chamber	Action	Amount
Oct 31, 2025	Lisa McClain	R	House	Sale	$1,001 - $15,000
Oct 30, 2025	Lisa McClain	R	House	Sale	$1,001 - $15,000
Oct 30, 2025	Lisa McClain	R	House	Purchase	$1,001 - $15,000
Jul 22, 2025	Lisa McClain	R	House	Purchase	$1,001 - $15,000
Jun 17, 2025	Lisa McClain	R	House	Sale (Partial)	$1,001 - $15,000
Jun 11, 2025	Lisa McClain	R	House	Purchase	$1,001 - $15,000
Apr 7, 2025	Jefferson Shreve	R	House	Sale	$15,001 - $50,000