RGEN

Healthcare

Repligen Corporation

$113.78+0.02 (+0.02%)

Prev Close

$113.76

Open

$114.50

High

$116.01

Low

$112.83

Volume

774.2K

Market Cap

$7.02B

P/E

133.86

Div Yield

—

Over the past 12 months, insider activity at Repligen Corporation (RGEN) has been dominated by selling, with 2 insider purchases totaling $239.5K and 12 insider sales totaling $20.03M. The most recent insider transaction was by DAWES KAREN A (Director), who sold $44.3K worth of shares on Dec 17, 2025. Repligen Corporation operates in the Healthcare sector, within the Medical - Instruments & Supplies industry, with a market cap of $7.02B.

Buys (12M)

$239.5K

Sells (12M)

$20.03M

Net Activity

Net Seller

$19.79M

Active Insiders

last 12 mo

RGEN Price Chart

RGEN Insider Trading Activity

Date	Insider	Role	Type	Shares	Avg Price	Value
Dec 17, 2025↗	DAWES KAREN A	Director	Sell	275	$161.00	$44.3K
Nov 25, 2025↗	Loeillot Olivier	Chief Executive Officer	Sell	7,041	$170.00	$1.20M
Nov 18, 2025↗	Bylund James	Chief Operating Officer	Sell	2,191	$151.21	$331.3K
Nov 13, 2025↗	Hunt Anthony	Director	Sell	20,000	$154.61	$3.09M
Nov 12, 2025↗	Hunt Anthony	Director	Sell	25,000	$156.88	$3.92M
Oct 2, 2025↗	Loeillot Olivier	Chief Executive Officer	Sell	1,248	$145.23	$181.2K
Sep 25, 2025↗	Garland Jason K	CFO	Sell	412	$121.68	$50.1K
Sep 10, 2025↗	Hunt Anthony	Director	Sell	29,111	$120.52	$3.51M
Sep 3, 2025↗	Loeillot Olivier	Chief Executive Officer	Sell	2,506	$116.18	$291.1K
Aug 8, 2025↗	Madaus Martin D	Director	Buy	1,800	$112.13	$201.8K
May 15, 2025↗	Hunt Anthony	Director	Sell	26,447	$123.71	$3.27M
Apr 1, 2025↗	Bylund James	Chief Operating Officer	Sell	454	$128.50	$58.3K
Mar 17, 2025↗	Hunt Anthony	Director	Sell	26,756	$152.51	$4.08M
Mar 17, 2025↗	Pax Margaret	Director	Buy	250	$150.69	$37.7K
Mar 13, 2025↗	Bylund James	Chief Operating Officer	Sell	175	$142.44	$24.9K
Mar 3, 2025↗	Bylund James	Chief Operating Officer	Sell	1,239	$155.38	$192.5K
Mar 3, 2025↗	Hunt Anthony	Director	Sell	10,142	$155.38	$1.58M
Mar 3, 2025↗	KURIYEL RALF	Senior VP, R&D	Sell	386	$155.38	$60.0K
Feb 27, 2025↗	Bylund James	Chief Operating Officer	Sell	1,285	$156.54	$201.2K
Feb 27, 2025↗	Garland Jason K	CFO	Sell	316	$156.54	$49.5K
Feb 27, 2025↗	Hunt Anthony	Director	Sell	2,825	$156.54	$442.2K
Feb 27, 2025↗	KURIYEL RALF	Senior VP, R&D	Sell	391	$156.54	$61.2K
Feb 27, 2025↗	Loeillot Olivier	Chief Executive Officer	Sell	343	$156.54	$53.7K
Feb 24, 2025↗	Bylund James	Chief Operating Officer	Sell	543	$164.74	$89.5K
Feb 24, 2025↗	Hunt Anthony	Director	Sell	2,380	$164.74	$392.1K
Feb 24, 2025↗	KURIYEL RALF	Senior VP, R&D	Sell	275	$164.74	$45.3K

RGEN Insider Buying Activity

The following table shows recent insider purchases of Repligen Corporation (RGEN) stock reported via SEC Form 4 filings.

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
Aug 8, 2025↗	Madaus Martin D	Director	Buy	1,800	$112.13	$201.8K	0
Mar 17, 2025↗	Pax Margaret	Director	Buy	250	$150.69	$37.7K	0

RGEN Insider Selling Activity

The following table shows recent insider sales of Repligen Corporation (RGEN) stock reported via SEC Form 4 filings.

Date	Insider	Role	Type	Shares	Avg Price	Value
Dec 17, 2025↗	DAWES KAREN A	Director	Sell	275	$161.00	$44.3K
Nov 25, 2025↗	Loeillot Olivier	Chief Executive Officer	Sell	7,041	$170.00	$1.20M
Nov 18, 2025↗	Bylund James	Chief Operating Officer	Sell	2,191	$151.21	$331.3K
Nov 13, 2025↗	Hunt Anthony	Director	Sell	20,000	$154.61	$3.09M
Nov 12, 2025↗	Hunt Anthony	Director	Sell	25,000	$156.88	$3.92M
Oct 2, 2025↗	Loeillot Olivier	Chief Executive Officer	Sell	1,248	$145.23	$181.2K
Sep 25, 2025↗	Garland Jason K	CFO	Sell	412	$121.68	$50.1K
Sep 10, 2025↗	Hunt Anthony	Director	Sell	29,111	$120.52	$3.51M
Sep 3, 2025↗	Loeillot Olivier	Chief Executive Officer	Sell	2,506	$116.18	$291.1K
May 15, 2025↗	Hunt Anthony	Director	Sell	26,447	$123.71	$3.27M
Apr 1, 2025↗	Bylund James	Chief Operating Officer	Sell	454	$128.50	$58.3K
Mar 17, 2025↗	Hunt Anthony	Director	Sell	26,756	$152.51	$4.08M
Mar 13, 2025↗	Bylund James	Chief Operating Officer	Sell	175	$142.44	$24.9K
Mar 3, 2025↗	Bylund James	Chief Operating Officer	Sell	1,239	$155.38	$192.5K
Mar 3, 2025↗	Hunt Anthony	Director	Sell	10,142	$155.38	$1.58M
Mar 3, 2025↗	KURIYEL RALF	Senior VP, R&D	Sell	386	$155.38	$60.0K
Feb 27, 2025↗	Bylund James	Chief Operating Officer	Sell	1,285	$156.54	$201.2K
Feb 27, 2025↗	Garland Jason K	CFO	Sell	316	$156.54	$49.5K
Feb 27, 2025↗	Hunt Anthony	Director	Sell	2,825	$156.54	$442.2K
Feb 27, 2025↗	KURIYEL RALF	Senior VP, R&D	Sell	391	$156.54	$61.2K
Feb 27, 2025↗	Loeillot Olivier	Chief Executive Officer	Sell	343	$156.54	$53.7K
Feb 24, 2025↗	Bylund James	Chief Operating Officer	Sell	543	$164.74	$89.5K
Feb 24, 2025↗	Hunt Anthony	Director	Sell	2,380	$164.74	$392.1K
Feb 24, 2025↗	KURIYEL RALF	Senior VP, R&D	Sell	275	$164.74	$45.3K