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Transaction Breakdown

Companies & Roles

Discretionary Trading P&L

Holdings

Transaction History

About Arbuckle Stuart A

Arbuckle Stuart A (SEC CIK 0001557290) files insider reports with the SEC as Director of RHYTHM PHARMACEUTICALS, INC. (RYTM), Director of Praxis Precision Medicines, Inc. (PRAX) and Director of ALNYLAM PHARMACEUTICALS, INC. (ALNY). Signal8 also holds filings tied to 1 other company.

Signal8 holds 17 ownership filings by Arbuckle Stuart A (2 Form 3, 15 Form 4), filed between Feb 6, 2025 and Jun 25, 2026. Those filings report 20 transactions, the latest on Jun 24, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Arbuckle Stuart A's filings is in BOSTON, MA.

Other insiders filing for RHYTHM PHARMACEUTICALS, INC. (RYTM)

How to read Form 4 transaction codes