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MGM SCHEDULE 13D/A: Activist campaign

Filed with the SEC on · accession 0001104659-26-119439

MGM filed a SCHEDULE 13D/A (schedule 13d/a) with the SEC on Oct 28, 2026. People Incorporated (formerly IAC Inc.) and Barry Diller amended their voting agreement with MGM Resorts International, updating voting provisions for their 66,822,350 shares and adding standstill provisions. The stock moved -2.6% by the first close after the filing.

Summary of the filing

People Incorporated (formerly IAC Inc.) and Barry Diller amended their voting agreement with MGM Resorts International, updating voting provisions for their 66,822,350 shares and adding standstill provisions. The amendment renames IAC to People and modifies how excess voting securities are voted.

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Key details

Shares of MGM common stock beneficially owned by Covered Entities$66.8M
Company subject to voting agreementMGM Resorts International
Formerly iac inc., party to voting agreement and shareholderPeople Incorporated
Individual party to voting agreementBarry Diller

How MGM stock reacted

Close before

$27.99

Oct 27, 2026

First close after

-2.57%

$27.27

5 trading days

+10.83%

$31.02

Since filing

+15.54%

$32.34

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Frequently asked questions

What did MGM file with the SEC on Oct 28, 2026?

MGM filed a SCHEDULE 13D/A (Activist campaign). People Incorporated (formerly IAC Inc.) and Barry Diller amended their voting agreement with MGM Resorts International, updating voting provisions for their 66,822,350 shares and adding standstill provisions. The amendment renames IAC to People and modifies how excess voting securities are voted.

What does a activist campaign mean for MGM stock?

A settlement removes uncertainty; the stock often reacts to whether the amount is bigger or smaller than investors expected.

How do I read a SCHEDULE 13D/A?

A report the company filed with the SEC (the US market regulator). Start with the summary, then the key amounts and names. Compare it with the company’s earlier filings.

Why are SEC filings important?

Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A SCHEDULE 13D/A (schedule 13d/a): A report the company filed with the SEC (the US market regulator).

How did MGM stock react to this filing?

MGM closed at $27.99 before the filing and $27.27 on Oct 28, 2026 (-2.57%). Five trading days later: $31.02 (+10.83%).

Other MGM SEC filings

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