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VMRK — VIVMARK RESIDENTIAL

Financials · Real Estate Investment Trusts · NYSE

CIK 0000906107 · FYE 1231 · All Form 4 filings on EDGAR ↗

Formerly: EQUITY RESIDENTIAL (until 2026-08-12); EQUITY RESIDENTIAL PROPERTIES TRUST (until 2002-10-30)

2Insiders filing

2Transactions

+$0Reported buys

−$20kReported sells

0Cluster events

Window in data: 2026-08-20 → 2026-08-21 · Data as of 2026-08-28

Insiders

Insider	Role	Txns	Reported value
Willson Sean Thomas	Senior Vice President & CAO	1	$20k
Birenbaum Matthew H.	Executive Vice President & CDO	1	$0

Transaction history

Filing date	Trade date	Ticker	Insider	Type	Shares	Price	Value	Cluster
2026-08-24	2026-08-21	VMRK	Willson Sean Thomas Senior Vice President & CAO	S	300	$66.31	−$20k	—
2026-08-24	2026-08-20	VMRK	Birenbaum Matthew H. Executive Vice President & CDO	G	1,400	—	—	—

Known data limitations

Form 4 lag: insiders have 2 business days to file after a trade (weekends and holidays extend this), and this site re-ingests once daily — a transaction can appear here roughly three business days after it happened.
13F lag: quarterly 13F-HR holdings cover the prior quarter-end and are due 45 days after it — every institutional position shown here is at least 45 days old by construction, often more.
CUSIP→ticker gaps: 13F positions are reported by CUSIP; some holdings cannot be matched to a current ticker (delistings, corporate actions, thin metadata) and appear without one or are omitted from ticker-level views.
EDGAR timing variability: institutions file at different hours and days within their windows; amended filings (4/A, 13F-HR/A) can restate earlier periods, so historical aggregates may change between batches.

Insider Atlas is a descriptive research site, not investment advice — see the methodology for the full provenance chain.