Eric Marmurek Insider Trades & Stock Holdings

EVP, Chief Financial Officer · RBBN · Latest filing Jun 15, 2026

Eric Marmurek, EVP, Chief Financial Officer at RBBN has 1 Form 4 trade on file since Jun 15, 2026. Latest filing: acquired 60K shares of $RBBN on Jun 15, 2026.

Trades on file

1

Open-market bought

$0

Open-market sold

$0

Net open-market

$0

Latest filing

Jun 15, 2026

All insider trades by Eric Marmurek

Date	Ticker	Type	Shares	Price	Value	Owned after	ΔOwn	1W	1M	6M	Role	Filing	Story
Jun 15, 2026	$RBBN	Buy (Grant or award)	60K	$0	—			-8.5%	-19.5%		EVP, Chief Financial Officer		—

"Buy" means shares acquired on the Form 4 (including grants and option exercises); "Sell" means shares disposed. 1W / 1M / 6M = how the stock moved after the trade.

Stocks Eric Marmurek traded

• $RBBN

Frequently asked questions

What was Eric Marmurek's latest insider trade?

acquired 60K shares of $RBBN on Jun 15, 2026.

Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.