Summary
Latest filing:
Robert S. Rivkin is Director of Amrize Ltd (AMRZ). 2 SEC Form 4 filings on record going back to 2025, most recently on 22 April 2026.
Recent transactions
3The latest 3 SEC Form 4 transactions reported by Robert S. Rivkin.
Trading pattern
InsiderAlpha's records for Robert S. Rivkin go back to 2025: 2 primary Form 4 filings, an average of 1.0 per year. No recorded transaction carries a Rule 10b5-1 plan flag. An absent flag does not establish whether a transaction was pre-arranged or discretionary.
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies Robert S. Rivkin files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Jan Philipp Jenisch - $12.91M in AMRZ purchases and sales in the last 12 months
- Roald Brouwer - $637K in AMRZ purchases and sales in the last 12 months
- Jaime Hill - $569K in AMRZ purchases and sales in the last 12 months
- Mario Gross - $539K in AMRZ purchases and sales in the last 12 months
- Ian A. Johnston - $327K in AMRZ purchases and sales in the last 12 months
- Baris Oran - $284K in AMRZ purchases and sales in the last 12 months
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Frequently asked questions
Who is Robert S. Rivkin?
Robert S. Rivkin is a corporate insider, tracked as Director of Amrize Ltd (AMRZ). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Robert S. Rivkin last file a Form 4?
The most recent primary Form 4 on record is dated 22 April 2026, one of 2 filings going back to 2025.