Quick Takeaways
- Robert S. Rivkin has 2 issuer positions tracked on this page.
- Estimated disclosed ownership value: $556,967.
- Recent insider filing activity is available below.
- Info
- Insider Ownership
Insider Trading & Ownership of Robert S. Rivkin
- Location
- Chicago, IL
- Summary
- The estimated net worth of Robert S. Rivkin is at least $556,967 dollars as of 22 Apr 2026. Robert S. Rivkin is the Director of Amrize Ltd and owns shares of Amrize Ltd (AMRZ) stock worth about $291K. Robert S. Rivkin is the Director of Sky Harbour Group Corp and owns shares of Sky Harbour Group Corp (SKYH) stock worth about $266K.
- Signature
- Hans Weinburger, Attorney-in-Fact
- All Insider Reports
- All Insider Reports
Follow Filing Activity
Follow Robert S. Rivkin and return when a new Insider Trading filing changes the record on this page.
This uses the existing product follow flow to surface future filing-backed changes without guessing what they mean.
What Changed
- Largest disclosed position: Amrize Ltd ($290,967).
- Past-year value change for that position: .
Why This Matters
- This page translates Forms 3/4/5 into a quick ownership context before you inspect each transaction row.
- You can cross-check role, issuer, and filing chronology directly against the SEC source.
Source Evidence
Filed on Form 4
See Original Filing
Insider ownership context is sourced from SEC Forms 3, 4, and 5.
Ownership of Robert S. Rivkin
| Symbol | Company | Relationship | Holdings Value | Past Year Net Change | Change % | Report Period |
|---|---|---|---|---|---|---|
| AMRZ | Amrize Ltd | Director | $290,967 | 21 Apr 2026 | ||
| SKYH, SKYH-WT | Sky Harbour Group Corp | Director | $266,000 | 15 Feb 2024 |
Insider Transactions Reported by Robert S. Rivkin:
| Sym | Company | Class | Transaction | % | Value $ | * Price $ | Shares | Shares After | Date | Ownership |
|---|
* An asterisk sign (*) next to the price indicates that the price is likely invalid.