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Insider Buy Cluster Buy Mega Buy ($1M+) December 11, 2025

ZERZA ARMIN purchased ~$15M in Warner Music Group Corp. stock

Warner Music Group Corp. (WMG)  ·  Data via SEC EDGAR Form 4

Verity Signals Research Published Updated

= insider buy date

90-day return

-2.2%
WMG price after insider trade by ZERZA ARMIN

Insider

ZERZA ARMIN

Role

Transaction

Open-Market Purchase

Approx. Value

~$15M

Trade Date

Dec 11, 2025

Company

Warner Music Group Corp.

Ticker

WMG

Source

SEC EDGAR Form 4

Strong conviction signal

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

~$15M purchase

Trades over $1M are rare. When insiders put this much of their own money on the line, they tend to have high conviction in their company's direction.

2 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.

-2.2% 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.

ZA

How good is ZERZA ARMIN at picking stocks?

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2

ZERZA ARMIN wasn't the only one buying.

2 insiders at Warner Music Group Corp. traded within the same 30-day window.

See who else bought · Free

On December 11, 2025, ZERZA ARMIN — a corporate insider at Warner Music Group Corp. — filed a Form 4 with the SEC disclosing an open-market purchase of approximately ~$15M in Warner Music Group Corp. (WMG) stock.

This transaction was part of a cluster — 2 insiders at Warner Music Group Corp. 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, WMG returned -2.2%

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 ~$15M
Insider role Insider
Cluster 2 insiders
90-day return -2.2%

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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