Repligen Corp
RGEN- Exchange
- Nasdaq
- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0000730272
In the last 90 days, Repligen Corp insiders filed 0 open-market purchases and 5 sales; 484 institutions reported holding it in 13F filings for Q2 2026, worth $9.00B in total; 3 superinvestors hold it, including Maverick Capital and Duquesne Family Office.
Key figures
- Market capClose on Nov 9, 2026
- $11.4B
- Insider buysOpen market, last 90 days
- 0
- Insider sellsLast 90 days, $5.95M in total
- 5
- 13F holdersQ2 2026, +40 vs. previous quarter
- 484
- 13F valueReported value at the end of Q2 2026
- $9.00B
- Superinvestors holdingAt the end of Q2 2026
- 3
Price chart
Financials
See financial statementsFrom SEC filings, in USD.
- Revenue, FY2025
- $738.3M
- +16.4% year over year
- Net income, FY2025
- $48.9M
- No comparable prior period
- Free cash flow, FY2025
- $93.9M
- −37.3% year over year
- Revenue, Q3 FY2026
- $209.3M
- +10.9% year over year
Short interest
See short dataFrom FINRA, settlement date Oct 15, 2026.
- Short interest
- 7.15M
- Shares sold short
- Change
- −436.6K
- −5.8% vs. previous
- Days to cover
- 4.88
- At average daily volume
Superinvestors holding RGEN, Q2 2026
Go to the superinvestors tab3 superinvestors report holding Repligen Corp on Form 13F. Percentages are the stock's share of each portfolio.
Duquesne Family Office
Stanley Druckenmiller
0.2%
Repligen Corp's share of the portfolio
- Shares
- 77,400
- Value
- $10.6M
| Superinvestor | Weight | Value |
|---|---|---|
| Weitz Investment Management | 0.4% | $5.57M |
Latest insider trades
See all insider tradesOpen-market purchases and sales by Repligen Corp insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Oct 6, 2026 (view filing)4:18 PM ET | Oct 5 | 1 day | Loeillot OlivierChief Executive Officer | SSale | −5.54K | $187.29 | −$1.04M | −10.8%45.8K after | 2 lots10b5-1 |
| Sep 25, 2026 (view filing)4:09 PM ET | Sep 24 | 1 day | Loeillot OlivierChief Executive Officer | SSale | −12.9K | $190.00 | −$2.46M | −21.1%48.4K after | 2 lots10b5-1 |
| Sep 22, 2026 (view filing)4:07 PM ET | Sep 21 | 1 day | Loeillot OlivierChief Executive Officer | SSale | −5.43K | $180.00 | −$976.7K | −10.1%48.4K after | 10b5-1 |
| Sep 8, 2026 (view filing)4:13 PM ET | Sep 4 | 4 days | Loeillot OlivierChief Executive Officer | SSale | −3.04K | $165.90 | −$503.5K | −5.9%48.4K after | 10b5-1 |
| Aug 21, 2026 (view filing)4:06 PM ET | Aug 20 | 1 day | Loeillot OlivierChief Executive Officer | SSale | −5.43K | $180.00 | −$976.7K | −9.1%54.2K after | 10b5-1 |
| Jul 17, 2026 (view filing)4:40 PM ET | Jul 16 | 1 day | Garland Jason KCFO | SSale | −530 | $150.00 | −$79.5K | −2.7%18.8K after | 10b5-1 |
| Jun 26, 2026 (view filing) | Jun 25 | 1 day | Garland Jason KCFO | SSale | −733 | $145.00 | −$106.3K | −3.6%19.4K after | 10b5-1 |
| Apr 22, 2026 (view filing) | Apr 21 | 1 day | Loeillot OlivierChief Executive Officer | SSale | −3.83K | $140.00 | −$536.5K | −6.6%54.2K after | 10b5-1 |
| Dec 18, 2025 (view filing) | Dec 17 | 1 day | Dawes Karen ADirector | SSale | −275 | $161.00 | −$44.3K | −0.3%91.8K after | |
| Nov 26, 2025 (view filing) | Nov 25 | 1 day | Loeillot OlivierChief Executive Officer | SSale | −7.04K | $170.00 | −$1.20M | −16.4%35.9K after | 10b5-1 |
Top 10 13F holders, Q2 2026
See all 484 holdersThe largest institutional positions in Repligen Corp at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 5,384,938 | $734.7M | 0.01% | −608,116−10.1% | Reduced |
| FMR LLC | 3,326,690 | $453.9M | 0.02% | +439,904+15.2% | Added |
| United Capital Financial Advisers, LLC | 2,790,650 | $380.8M | 2.10% | +16,670+0.6% | Added |
| Vanguard Capital Management LLC | 2,411,171 | $329.0M | 0.01% | +14,660+0.6% | Added |
| Vanguard Portfolio Management LLC | 2,312,825 | $315.6M | 0.01% | +7,731+0.3% | Added |
| Maverick Capital LtdSuperinvestorMaverick Capital | 1,984,554 | $270.8M | 2.44% | +465,749+30.7% | Added |
| State Street Corp | 1,800,530 | $245.7M | 0.01% | +23,245+1.3% | Added |
| Price T Rowe Associates Inc | 1,752,274 | $239.1M | 0.02% | −3,125,867−64.1% | Reduced |
| Massachusetts Financial Services Co | 1,617,021 | $220.6M | 0.07% | +219,506+15.7% | Added |
| Wasatch Advisors Inc | 1,590,251 | $217.0M | 1.42% | +346,720+27.9% | Added |
Holders of 5% or more of RGEN
See all 3 holders and filingsHolders whose latest Schedule 13D or 13G filing reports 5% or more of Repligen Corp.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| FMR LLC | 13G/A | 13.00%7.36M shares | +7.90 ppfrom 5.10% | Feb 5, 20262 filings | Oct 7, 2026 | SEC |
| BlackRock, Inc. | 13G/A | 9.30%5.20M shares | – | Oct 23, 20243 filings | Apr 24, 2025 | SEC |
| Vanguard Capital Management LLC | 13G | 5.00%2.83M shares | New | Jul 31, 20261 filing | Jul 31, 2026 | SEC |
Politician trades
All politician trades in RGEN2 members of Congress reported 7 trades in Repligen Corp since 2020. Newest filings:
| Filed | Politician | Type | Amount |
|---|---|---|---|
| Nov 21, 2025 |  Lisa C. McClain House · MI | Sell | $1K-$15K |
| Nov 21, 2025 | Lisa C. McClain House · MI | Buy | $1K-$15K |
| Nov 21, 2025 | Lisa C. McClain House · MI | Sell | $1K-$15K |
| Aug 13, 2025 | Lisa C. McClain House · MI | Sell (partial) | $1K-$15K |
| Aug 13, 2025 | Lisa C. McClain House · MI | Buy | $1K-$15K |
House · MI · Nov 21, 2025
Sell$1K-$15K
House · MI · Nov 21, 2025
Buy$1K-$15K
House · MI · Nov 21, 2025
Sell$1K-$15K
House · MI · Aug 13, 2025
Sell (partial)$1K-$15K
House · MI · Aug 13, 2025
Buy$1K-$15K