Marc D. Graff

CFO

Insider activity · 24 months0 buys3 salesCumulative net flow

Nov 24 · 0 buys · 0 salesDec 24 · 0 buys · 0 salesJan 25 · 0 buys · 0 salesFeb 25 · 0 buys · 0 salesMar 25 · 0 buys · 0 salesApr 25 · 0 buys · 0 salesMay 25 · 0 buys · 0 salesJun 25 · 0 buys · 0 salesJul 25 · 0 buys · 0 salesAug 25 · 0 buys · 0 salesSept 25 · 0 buys · 0 salesOct 25 · 0 buys · 0 salesNov 25 · 0 buys · 0 salesDec 25 · 0 buys · 0 salesJan 26 · 0 buys · 0 salesFeb 26 · 0 buys · 0 salesMar 26 · 0 buys · 0 salesApr 26 · 0 buys · 0 salesMay 26 · 0 buys · 0 salesJun 26 · 0 buys · 0 salesJul 26 · 0 buys · 1 saleAug 26 · 0 buys · 1 saleSept 26 · 0 buys · 0 salesOct 26 · 0 buys · 1 sale

Total declarations

Company

▲ Purchases (0 ops.)

—

▼ Sales (4 ops.)

€1.9M

Latest filing published 06 Oct 2026 for CIENA CORP, €30k. Read the official filing

Filing timeline

BuySale

Marc D. Graff

Insider track record

Disclosed buys

Disclosed sells

Signal history

Marc D. Graff: trading record in brief

Marc D. Graff appears in our data through filings on Ciena Corp shares, published by SEC (Form 4). Over a trading history stretching from 1 August 2025 to 1 October 2026, the count stands at 10 filings.

The open-market record consists of 4 sales worth €1.9M, with no purchase. No amount is published for 1 filing, which the totals therefore leave out. Besides market trades, the filings include 6 share grants. So far in 2026, the count stands at no purchases and 4 sales.

On 6 October 2026 came the latest disclosure, an open-market sale for €30k in Ciena Corp. Typically, a trade is published a median of 4 days after it takes place. US insiders must file a Form 4 within two business days of a trade. A sale on its own says little: insiders also sell to pay tax, fund a purchase or diversify. Every figure here comes from the filings published by SEC (Form 4) and describes the past, not future prices; it is not investment advice.