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Insider Buy Cluster Buy CEO Buy March 9, 2026

Hill Jaime purchased ~$722K in Amrize Ltd stock

Amrize Ltd (AMRZ)  ·  President, Building Materials  ·  Data via SEC EDGAR Form 4

Verity Signals Research Published Updated

= insider buy date

AMRZ price after insider trade by Hill Jaime

Insider

Hill Jaime

Role

President, Building Materials

Transaction

Open-Market Purchase

Approx. Value

~$722K

Trade Date

Mar 9, 2026

Company

Amrize Ltd

Ticker

AMRZ

Source

SEC EDGAR Form 4

Strong conviction signal

Scored above average across multiple factors. Roughly 15% of insider trades qualify as Strong.

~$722K purchase

A significant position. Insiders who invest $500K+ of their own money typically have strong views on their company's near-term outlook.

President, Building Materials

Corporate insiders must file trades with the SEC within 2 business days. Their unique access to non-public information makes these filings valuable data points.

3 insiders traded in the same window

When multiple insiders independently buy within 30 days, it's called a cluster. Studies show clustered insider purchases outperform solo trades significantly, because several people with inside knowledge are reaching the same conclusion.

HJ

How good is Hill Jaime at picking stocks?

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3

Hill Jaime wasn't the only one buying.

3 insiders at Amrize Ltd traded within the same 30-day window.

See who else bought · Free

On March 9, 2026, Hill Jaime — President, Building Materials of Amrize Ltd — filed a Form 4 with the SEC disclosing an open-market purchase of approximately ~$722K in Amrize Ltd (AMRZ) stock.

This transaction was part of a cluster — 3 insiders at Amrize Ltd made open-market purchases within the same 30-day window. Cluster activity from multiple independent insiders is one of the most studied patterns in insider trading research.

Under Section 16(a) of the Securities Exchange Act of 1934, corporate insiders must report all open-market stock transactions to the SEC within two business days. These filings — known as Form 4s — are publicly available on the SEC's EDGAR database. VeritySignals filters and scores the full Form 4 stream to surface high-conviction signals like this one.

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All data sourced from publicly available SEC Form 4 filings via EDGAR · Not financial advice · Past performance does not guarantee future results.

Signal strength Strong
Trade size ~$722K
Insider role President, Building Materials
Cluster 3 insiders

What is this?

When company executives buy or sell their own stock, they must report it to the SEC within 2 days. These public filings reveal what the people who know the company best are doing with their own money.

Why does it matter?

Insiders can sell for many reasons (taxes, diversification, expenses), but they generally only buy for one: they think the stock is going up. That's why insider purchases are more predictive than sales.

What makes a trade "strong"?

We score trades on 15+ factors: the insider's role (CEO > director), trade size relative to their salary, whether other insiders also bought (clusters), and historical accuracy of the insider.

Read our full methodology →

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