Charles E. Mueller Jr. - 17 Aug 2026 Form 3 Insider Report for VIVMARK RESIDENTIAL (EQR)

Source evidence Original filing metadata and source links for verification. 4 source fields
SEC form
3
Accepted by SEC
18 Aug 2026, 18:16:47 UTC
Prior SEC filing
01 Jun 2026
Source filing
View source filing
Reporting owner 1 detail
Reporting owner signature
/s/ Samantha Thompson, Attorney-in-fact

Key filing fact

Charles E. Mueller Jr. filed Form 3 for VIVMARK RESIDENTIAL (EQR) on 18 Aug 2026.

Key facts

  • This page summarizes Charles E. Mueller Jr.'s Form 3 filing for VIVMARK RESIDENTIAL (EQR).
  • 0 reported transactions and 0 derivative rows are listed below.
  • Accepted by SEC: 18 Aug 2026, 18:16.

Change

  • Previous filing in this sequence was filed on 01 Jun 2026.
  • Current net transaction value: $0.

Research use

  • This tells you what this filing adds before you inspect full transaction and derivative tables.
  • You can trace every row back to the original SEC filing document.

Evidence

Official SEC source

Ownership activity is grounded in SEC Form 3 disclosures.

View source filing

Reporting Owners (1)

CIK 0001195976 Primary reporting owner

MUELLER CHARLES E JR

Relationship
Director
Address
4040 WILSON BLVD., SUITE 1000, ARLINGTON
Signature
/s/ Samantha Thompson, Attorney-in-fact
Signature date
18 Aug 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

EQR holding

Common Shares Of Beneficial Interest

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
24,084
Date
17 Aug 2026
Ownership
Direct
Footnotes
F1, F2, F3
* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

Pursuant to the Agreement and Plan of Merger, dated as of May 20, 2026, by and among AvalonBay Communities, Inc., a Maryland corporation ("AVB"), Vivmark Residential (f/k/a Equity Residential), a Maryland real estate investment trust ("VMRK"), ERP Operating Limited Partnership, an Illinois limited partnership (the "Operating Partnership"), and Canopy Merger Sub LLC, a Maryland limited liability company ("Merger Sub"), AVB and VMRK combined in a merger of equals on August 17, 2026, with AVB merging with and into Merger Sub, with Merger Sub surviving as a wholly owned subsidiary of VMRK (the "Merger"). Merger Sub subsequently merged with and into the Operating Partnership, with the Operating Partnership continuing as the surviving entity.

Footnote F2

At the effective time of the Merger, each issued and outstanding share of common stock, par value $0.01 per share (the "AVB Common Stock"), of AVB and deferred stock unit held by the Reporting Person was automatically converted into the right to receive 2.793 (the "Exchange Ratio") common shares of beneficial interest, $0.01 par value per share ("VMRK Common Shares"), of VMRK, plus, in the case of AVB Common Stock, the right to receive cash in lieu of fractional VMRK Common Shares, if any, into which such AVB Common Stock would have been converted.

Footnote F3

Total reflects the Reporting Person's shares of AVB Common Stock and deferred stock units that were converted into VMRK Common Shares pursuant to the Merger.

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