Institutional shares held 57.5 Million
75.6K calls
521K puts
Total value of holdings $6.6B
$8.68M calls
$59.8M puts
Market Cap $6.33B
55,491,200 Shares Out.
Institutional ownership 103.56%
# of Institutions 493


Latest Institutional Activity in RGEN

Top Purchases

Q2 2025
Congress Asset Management CO Shares Held: 152K ($17.4M)
Q2 2025
Krilogy Financial LLC Shares Held: 20.2K ($2.31M)
Q2 2025
111 Capital Shares Held: 2.88K ($329K)
Q2 2025
Park Avenue Securities LLC Shares Held: 2.74K ($312K)
Q2 2025
Slow Capital, Inc. Shares Held: 35.6K ($4.06M)

Top Sells

Q2 2025
Riverbridge Partners LLC Shares Held: 368K ($42M)
Q2 2025
Banque Pictet & Cie Sa Shares Held: 20.7K ($2.37M)
Q2 2025
Nbc Securities, Inc. Shares Held: 489 ($55.8K)
Q2 2025
Fifth Third Bancorp Shares Held: 4.09K ($467K)
Q2 2025
Zevenbergen Capital Investments LLC Shares Held: 86K ($9.82M)

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
155K Shares
From 16 Insiders
Exercise of conversion of derivative security 97K shares
Grant, award, or other acquisition 58K shares
Open market or private purchase 250 shares
Sell / Disposition
146K Shares
From 8 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 111K shares

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