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Insider Buy Cluster Buy May 28, 2025

Hundzinski Ronald T purchased ~$158K in InfuSystem Holdings, Inc. stock

InfuSystem Holdings, Inc. (INFU)  ·  Data via SEC EDGAR Form 4

Verity Signals Research Published Updated

= insider buy date

90-day return

+90.0%
INFU price after insider trade by Hundzinski Ronald T

Insider

Hundzinski Ronald T

Role

Transaction

Open-Market Purchase

Approx. Value

~$158K

Trade Date

May 28, 2025

Company

InfuSystem Holdings, Inc.

Ticker

INFU

Source

SEC EDGAR Form 4

Strong conviction signal

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

~$158K purchase

A meaningful investment of personal capital. The average insider purchase is around $150K, putting this in the typical range for serious positions.

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.

+90.0% in 90 days

Measured from trade date to 90 days later. We track the performance of every insider trade to identify which insiders consistently make profitable moves.

HR

How good is Hundzinski Ronald T at picking stocks?

Full track record: win rate, average return, and performance vs S&P 500

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3

Hundzinski Ronald T wasn't the only one buying.

3 insiders at InfuSystem Holdings, Inc. traded within the same 30-day window.

See who else bought · Free

On May 28, 2025, Hundzinski Ronald T — a corporate insider at InfuSystem Holdings, Inc. — filed a Form 4 with the SEC disclosing an open-market purchase of approximately ~$158K in InfuSystem Holdings, Inc. (INFU) stock.

This transaction was part of a cluster — 3 insiders at InfuSystem Holdings, Inc. 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.

In the 90 days following this trade, INFU returned +90.0%

Full Conviction Analysis

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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 ~$158K
Insider role Insider
Cluster 3 insiders
90-day return +90.0%

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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