SCHEDULE: Eddleman Trusts Reduce Repligen Stake Below 5%

The Roy T. Eddleman Living Trust and associated charitable trusts have reduced their aggregate beneficial ownership in Repligen Corporation to 4.86% of common stock.

Summary

• The Roy T. Eddleman Living Trust and two associated Charitable Remainder Trusts have filed an Amendment No. 8 to Schedule 13G, disclosing their beneficial ownership in Repligen Corporation.
• The aggregate beneficial ownership by these reporting persons is 2,735,293 shares of Repligen Corporation common stock.
• This aggregate amount represents 4.86% of the outstanding common stock, based on 56,290,749 shares reported as outstanding on October 30, 2025.
• Individually, the Roy T. Eddleman Living Trust holds 2,705,689 shares (4.81%), and the Roy T. Eddleman Charitable Remainder Trust #1 holds 29,604 shares (0.001%). The Roy T. Eddleman Charitable Remainder Trust #2 holds 0 shares.
• Geoffrey Paul, Nereyda Rubio, and Anis Garci serve as co-trustees for each reporting person, exercising shared voting and dispositive power over the shares.
• The reporting persons certify that the securities were not acquired or held for the purpose of changing or influencing the control of Repligen Corporation.

Sentiment

Score: 4

Explanation: StockSavvy.ai views this as a slightly negative signal, as a significant beneficial owner has reduced their stake below the 5% threshold, potentially indicating a decreased conviction or portfolio rebalancing, though the filing provides no specific rationale.

Future Outlook

NA

Industry Context

StockSavvy.ai notes that a reduction in a significant holder's stake, especially below the 5% threshold, can sometimes signal a shift in investment strategy or a re-evaluation of the issuer's prospects by that specific investor, though the filing itself provides no explicit reason.

Stakeholder Impact

• Shareholders might interpret the reduction in a significant institutional stake below the 5% threshold as a potential signal of reduced confidence, which could lead to minor downward pressure on the stock. However, the direct impact is often limited for a routine 13G amendment unless the reduction is unexpectedly large or accompanied by other negative news.

Key Dates

Recommendation

The filing indicates a significant beneficial owner has reduced their stake below 5%, which could be interpreted as a mild negative signal. However, without further context on the reasons for the reduction or updated financial performance from Repligen, a seasoned investor would likely maintain a "hold" position, awaiting more comprehensive company updates before making a definitive investment decision.

Keywords

Repligen Corporation, RPGN, Schedule 13G, beneficial ownership, Roy T. Eddleman, institutional ownership, ownership reduction, SEC filing