Repligen Corp
A maker of tools and consumables for biologic drug manufacturing, Repligen supplies cell-retention filters, pre-packed columns, purification resins, and growth factors used by drugmakers worldwide. Founded in 1981 in Cambridge, Massachusetts, by two molecular biology professors, it focused entirely on bioprocessing starting in 2012. Its name blends "replication" and "genetics," a nod to its roots in recombinant protein science.
Granted 14.8K · Sold 2.1K
Granted 143.0K · Bought 2.0K · Sold 210.5K
Granted 77.5K · Sold 16.3K
Granted 32.5K
Granted 391 · Sold 3.8K
Granted 24.8K · Sold 6.6K
Granted 15.6K · Sold 15.1K
Granted 22.2K · Sold 733
Granted 2.7K · Bought 3.4K
Granted 2.3K
Granted 2.7K
Granted 2.7K · Bought 1.2K
Granted 2.7K
Granted 4.1K
Granted 2.7K
Granted 2.8K · Bought 250
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Dawes Karen ADirector · 8 transactions | +20.2% | 92.8K | 14.8K | — | 2.1K |
| Hunt AnthonyDirector · 72 transactions | -54.4% | 89.1K | 143.0K | 2.0K | 210.5K |
| Loeillot OlivierChief Executive Officer, Director · 15 transactions | — | 54.2K | 77.5K | — | 16.3K |
| Muir Glenn PDirector · 7 transactions | +428.2% | 40.1K | 32.5K | — | — |
| Gebski ChristineSee Remarks · 7 transactions | -15.8% | 27.4Kas of May 2024 | 391 | — | 3.8K |
| Bylund JamesChief Operating Officer · 23 transactions | +44.7% | 25.4K | 24.8K | — | 6.6K |
| Kuriyel RalfSenior VP, R&D · 21 transactions | -14.8% | 20.1K | 15.6K | — | 15.1K |
| Garland Jason KCFO · 10 transactions | — | 19.4K | 22.2K | — | 733 |
| Madaus Martin DDirector · 6 transactions | — | 14.0K | 2.7K | 3.4K | — |
| Douglass Brian RobbCHIEF PRODUCT OFFICER · 3 transactions | — | 8.0K | 2.3K | — | — |
| Eglinton Manner CarrieDirector · 3 transactions | +268.7% | 5.5K | 2.7K | — | — |
| Barthelemy NicolasDirector · 4 transactions | +96.5% | 5.4K | 2.7K | 1.2K | — |
| Mhatre RohinDirector · 3 transactions | +113.8% | 5.0K | 2.7K | — | — |
| Hughes ViolettaCHIEF ACCOUNTING OFFICER · 1 transaction | — | 4.1K | 4.1K | — | — |
| Konstantinov KonstantinDirector · 3 transactions | +218.8% | 3.9K | 2.7K | — | — |
| Pax MargaretDirector · 5 transactions | — | 3.0K | 2.8K | 250 | — |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over the last 3 years: -248.3K shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.