NASDAQ · RGEN

Repligen Corporation

Healthcare · Medical - Instruments & Supplies

$174.73

Down-$1.82 (-1.04%)

Updated Sep 16, 2026, 10:36 PM

SID Score

6.0/10

Composite research score

Smart Money

58/100

Neutral

Market cap: 9.1B
P/E ratio: 5,229.48
Dividend yield: 0.00%
52-week range: $100.99 – $188.73
Volume: 891.26K
Avg. volume: 934.31K

Price performance

RGEN price history

1M range · 20 trading sessions · Daily adjusted prices

Last close: $174.73
Period change: +5.16%
Period low: $164.68
Period high: $182.03

Daily close

View OHLC price history

RGEN OHLC price history, latest 40 sessions
Date	Open	High	Low	Close	Volume
Sep 15, 2026	$168.27	$175.855	$168.27	$174.73	891.26K
Sep 14, 2026	$166.74	$168.42	$162.10	$168.00	514.4K
Sep 11, 2026	$166.72	$168.06	$164.02	$165.18	944.56K
Sep 10, 2026	$162.68	$165.04	$161.1416	$164.68	955.98K
Sep 9, 2026	$168.53	$169.52	$162.46	$165.05	1.08M
Sep 8, 2026	$168.05	$172.945	$166.32	$168.53	779.44K
Sep 4, 2026	$167.26	$169.51	$165.00	$167.60	806.07K
Sep 3, 2026	$175.53	$176.13	$167.54	$169.61	1.33M
Sep 2, 2026	$171.765	$176.87	$168.58	$172.94	959.33K
Sep 1, 2026	$180.70	$182.5692	$167.42	$170.02	1.41M
Aug 31, 2026	$174.17	$181.07	$174.01	$180.98	790.97K
Aug 28, 2026	$179.76	$181.345	$175.695	$176.27	818.72K
Aug 27, 2026	$179.90	$183.09	$179.14	$182.03	611.9K
Aug 26, 2026	$180.11	$183.43	$179.465	$180.30	539.1K
Aug 25, 2026	$181.62	$185.34	$178.9812	$181.69	1.14M
Aug 24, 2026	$180.60	$183.05	$176.28	$181.62	1.5M
Aug 21, 2026	$179.66	$182.425	$175.745	$181.13	1.1M
Aug 20, 2026	$174.61	$188.73	$173.135	$180.29	1.59M
Aug 19, 2026	$172.74	$179.87	$170.00	$176.36	1.9M
Aug 18, 2026	$168.01	$168.03	$164.83	$166.15	462.72K

Latest RGEN news

The latest Smart Investors Daily articles mentioning RGEN.

earningsJul 28, 2026

Repligen (RGEN) Beats Q2 Earnings Estimates by $0.09

sec filingJul 23, 2026

REPLIGEN CORP (RGEN) Reports Material Event to SEC

institutionalJul 10, 2026

WASATCH ADVISORS LP Increases Stake in Repligen Corporation (RGEN) by 27.9%

Latest RGEN news

The latest Smart Investors Daily articles mentioning RGEN.

Stock researchResearch & News · SEC Filings

Company

Overview Forecast Earnings Dividend Financials

Market Activity

Options Insider Trades Short Interest Institutional Ownership Sentiment

Research & News

Analysis Competitors News SEC Filings SID Coverage

RGEN research

SEC Filings

Recent regulatory filings and source documents.

SEC filing history

Open a filing to view the original source document.

RGEN SEC filings
Filed	Form	Description	Accepted	Document
Sep 8, 2026	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Sep 2, 2026	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Aug 21, 2026	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Jul 17, 2026	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Jun 26, 2026	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
May 8, 2026	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
May 8, 2026	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Apr 22, 2026	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Mar 23, 2026	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Mar 23, 2026	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Mar 23, 2026	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Mar 23, 2026	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Mar 5, 2026	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Mar 5, 2026	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Mar 3, 2026	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Mar 3, 2026	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Mar 3, 2026	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Mar 3, 2026	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Mar 3, 2026	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Dec 8, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Nov 26, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Nov 19, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Nov 14, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Nov 13, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Oct 6, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Sep 26, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Sep 11, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Sep 4, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Sep 4, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Aug 12, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
May 21, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
May 19, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
May 19, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
May 19, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
May 19, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
May 19, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
May 19, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
May 19, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
May 16, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Apr 2, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Mar 20, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Mar 19, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Mar 18, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Mar 4, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Mar 4, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Mar 4, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Mar 4, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Mar 4, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Feb 28, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source
Feb 28, 2025	4	Form 4 - Statement of changes in beneficial ownership of securities	—	Open source

Filed

Form

Description

Accepted

Document

Sep 8, 2026