Institutional shares held 58.3 Million
124K calls
679K puts
Total value of holdings $7.08B
$15M calls
$82.5M puts
Market Cap $6.74B
55,491,200 Shares Out.
Institutional ownership 105.09%
# of Institutions 502


Latest Institutional Activity in RGEN

Top Purchases

Q2 2025
Point72 Asset Management, L.P. Shares Held: 1.91M ($232M)
Q2 2025
Millennium Management LLC Shares Held: 701K ($85.1M)
Q2 2025
Commonwealth Of Pennsylvania Public School Empls Retrmt Sys Shares Held: 413K ($50.2M)
Q2 2025
Geneva Capital Management LLC Shares Held: 488K ($59.2M)
Q2 2025
T. Rowe Price Investment Management, Inc. Shares Held: 560K ($67.9M)

Top Sells

Q2 2025
Price T Rowe Associates Inc Shares Held: 6.6M ($802M)
Q2 2025
Macquarie Group LTD Shares Held: 90.2K ($11M)
Q2 2025
Thrivent Financial For Lutherans Shares Held: 6.57K ($798K)
Q2 2025
Invesco Ltd. Shares Held: 1.38M ($167M)
Q2 2025
Citadel Advisors LLC Shares Held: 1.06M ($129M)

About RGEN

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 process development screening, viral clearance validation studies, and scale down validation of chromatography processes. It also offers ELISA test kits; and chromatography resins under the CaptivA brand. In addition, the company provides filtration products, such as XCell Alternating Tangential Flow systems that are filtration devices used in upstream perfusion and cell culture processing; TangenX flat sheet cassettes, which are used in downstream biologic drug concentration and formulation processes; KrosFlo tangential flow filtration and tangential flow depth filtration systems; Spectra/Por laboratory and process dialysis products, and SpectraFlo dynamic dialysis systems; and ProConnex single-use hollow fiber. Further, it provides process analytics products, such as slope spectroscopy systems under the SoloVPE, FlowVPE, and FlowVPX brands. The company sells its products to life sciences, biopharmaceutical, and diagnostics companies; laboratory researchers; and contract manufacturing organizations. Repligen Corporation has collaboration agreements with Navigo Proteins GmbH to develop multiple affinity ligands. Repligen Corporation was incorporated in 1981 and is headquartered in Waltham, Massachusetts.


Insider Transactions at RGEN

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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Last 12 Months Summary

Buy / Acquisition
152K Shares
From 16 Insiders
Exercise of conversion of derivative security 91.8K shares
Grant, award, or other acquisition 58K shares
Open market or private purchase 2.05K shares
Sell / Disposition
135K Shares
From 7 Insiders
Sale (or disposition) back to the issuer 13.1K shares
Payment of exercise price or tax liability 22K shares
Open market or private sale 99.6K shares

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