Repligen Corporation (RGEN)
Trading
Quantity
Profitability
Ownership
Largest Insider Buys in Sector
RGEN Insider Trading Activity
RGEN Median Price and Trade Amounts History Chart
Statistics of Insider Transactions
Amount of Insider Buys and Sells
Buys | $638,149 | 4 | 40 |
Sells | $15,949,045 | 6 | 60 |
Related Transactions
| Hunt Anthony | Chief Executive Officer | 1 | $248,160 | 4 | $14.07M | $-13.82M |
| Madaus Martin D | director | 1 | $201,776 | 0 | $0 | $201,776 |
| BARTHELEMY NICOLAS | director | 1 | $150,540 | 0 | $0 | $150,540 |
| Pax Margaret | director | 1 | $37,673 | 0 | $0 | $37,673 |
| KURIYEL RALF | Senior VP, R&D | 0 | $0 | 2 | $1.88M | $-1.88M |
About Repligen Corporation
Repligen Corporation develops and commercializes bioprocessing technologies and systems for use in biological drug manufacturing process in North America, Europe, the Asia Pacific, and internationally. It offers Protein A ligands that are the binding components of Protein A affinity chromatography resins; and cell culture growth factor products. The company's chromatography products include OPUS pre-packed chromatography columns, which are used in the purification of biologics; and OPUS smaller-scale columns that are used in the high throughput …
Insider Activity of Repligen Corporation
Over the last 12 months, insiders at Repligen Corporation have bought $638,149 and sold $15.95M worth of Repligen Corporation stock.
On average, over the past 5 years, insiders at Repligen Corporation have bought $328,599 and sold $20.96M worth of stock each year.
Highest buying activity among insiders over the last 12 months: Hunt Anthony (Chief Executive Officer) — $248,160. Madaus Martin D (director) — $201,776. BARTHELEMY NICOLAS (director) — $150,540.
The last purchase of 250 shares for transaction amount of $37,673 was made by Pax Margaret (director) on 2025‑03‑17.
List of Insider Buy and Sell Transactions, Repligen Corporation
| 2025-03-17 | Sale | Hunt Anthony | director | 26,756 0.0477% | $152.51 | $4.08M | -8.76% | |
| 2025-03-17 | Pax Margaret | director | 250 0.0004% | $150.69 | $37,673 | -8.76% | ||
| 2024-11-21 | Sale | Hunt Anthony | director | 24,246 0.0431% | $139.67 | $3.39M | +7.18% | |
| 2024-09-10 | Sale | Hunt Anthony | director | 22,191 0.0393% | $145.37 | $3.23M | -0.51% | |
| 2024-08-02 | Sale | KURIYEL RALF | Senior VP, R&D | 7,148 0.0126% | $159.35 | $1.14M | -9.20% | |
| 2024-08-01 | Sale | KURIYEL RALF | Senior VP, R&D | 4,465 0.008% | $165.67 | $739,717 | -11.35% | |
| 2024-06-14 | Hunt Anthony | Chief Executive Officer | 2,000 0.0032% | $124.08 | $248,160 | +16.05% | ||
| 2024-06-14 | BARTHELEMY NICOLAS | director | 1,200 0.0019% | $125.45 | $150,540 | +16.05% | ||
| 2024-06-14 | Madaus Martin D | director | 1,615 0.0026% | $124.94 | $201,776 | +16.05% | ||
| 2024-05-21 | Sale | Hunt Anthony | Chief Executive Officer | 20,072 0.0362% | $168.26 | $3.38M | -12.56% | |
| 2024-03-11 | Sale | KURIYEL RALF | Senior VP, R&D | 3,517 0.0063% | $193.73 | $681,348 | -22.75% | |
| 2024-03-08 | Sale | Hunt Anthony | Chief Executive Officer | 16,707 0.0302% | $197.44 | $3.3M | -23.52% | |
| 2024-02-27 | Sale | DAWES KAREN A | director | 1,000 0.0018% | $193.35 | $193,350 | -22.21% | |
| 2024-02-23 | Sale | Bylund James | Chief Operating Officer | 4,373 0.0079% | $198.08 | $866,204 | -23.93% | |
| 2023-11-10 | Sale | Gebski Christine | See Remarks | 3,788 0.0068% | $147.13 | $557,328 | +8.73% | |
| 2023-08-29 | Sale | DAWES KAREN A | director | 850 0.0015% | $171.38 | $145,673 | -5.31% | |
| 2023-05-08 | Madaus Martin D | director | 500 0.0009% | $156.18 | $78,090 | +6.32% | ||
| 2023-05-05 | Madaus Martin D | director | 500 0.0009% | $159.19 | $79,595 | +3.87% | ||
| 2023-05-04 | Madaus Martin D | director | 500 0.0009% | $161.15 | $80,575 | +5.78% | ||
| 2023-02-16 | Sale | Snodgres Jon | Chief Financial Officer | 5,647 0.0103% | $200.00 | $1.13M | -16.52% |
Insider Historical Profitability
| Hunt Anthony | director | 136301 0.2428% | $17.52M | 1 | 29 | |
| BARTHELEMY NICOLAS | director | 4668 0.0083% | $600,118.08 | 1 | 7 | |
| Madaus Martin D | director | 4613 0.0082% | $593,047.28 | 4 | 0 | +5.32% |
| Pax Margaret | director | 1043 0.0019% | $134,088.08 | 1 | 0 | |
| HERLIHY WALTER C | PRESIDENT, CEO | 262430 0.4674% | $33.74M | 1 | 15 | +58.42% |
RGEN Institutional Investors: Active Positions
| Increased Positions | 195 | +37.07% | 5M | +9.88% |
| Decreased Positions | 225 | -42.78% | 4M | -8.06% |
| New Positions | 58 | New | 1M | New |
| Sold Out Positions | 66 | Sold Out | 704,190 | Sold Out |
| Total Postitions | 496 | -5.7% | 57M | +1.82% |
RGEN Ownership Change vs Market
Institutional Investor Ownership
| Price T Rowe Associates Inc /Md/ | $952,021.00 | 12.74% | 7.14M | +743,815 | +11.64% | 2024-12-31 |
| Blackrock, Inc. | $914,827.00 | 12.25% | 6.86M | -250,297 | -3.52% | 2024-12-31 |
| Vanguard Group Inc | $680,536.00 | 9.11% | 5.1M | +56,723 | +1.12% | 2024-12-31 |
| State Street Corp | $225,624.00 | 3.02% | 1.69M | +67,525 | +4.16% | 2024-12-31 |
| Champlain Investment Partners, Llc | $205,922.00 | 2.76% | 1.54M | +122,595 | +8.63% | 2024-12-31 |
| Sands Capital Management, Llc | $182,006.00 | 2.44% | 1.36M | -54,805 | -3.86% | 2024-12-31 |
| Bank Of New York Mellon Corp | $180,272.00 | 2.41% | 1.35M | -12,687 | -0.93% | 2024-12-31 |
| Citadel Advisors Llc | $157,357.00 | 2.11% | 1.18M | +663,641 | +128.65% | 2024-12-31 |
| Macquarie Group Ltd | $146,734.00 | 1.96% | 1.1M | -104,457 | -8.67% | 2024-12-31 |
| Impax Asset Management Group Plc | $140,339.00 | 1.88% | 1.05M | -6,230 | -0.59% | 2024-12-31 |