Disclosure timeline3 days from execution to publication · legal deadline 2 business days
Dec 20 executedDec 23, 2025 disclosed
CIEN · daily
Yahoo Finance chart API
◉This trade, on the day it was made▼Disclosure●Material company filing◯Other disclosed buy◯Other disclosed sellUnofficial public endpoint; daily OHLCV, split-adjusted. Replace with a licensed feed for production.
Tax withholding — administrative, little informational value
Relative size+4 / 25
$168K reported value · 1.3% of prior position
Filing timing0 / 15
Disclosed 2 business days after execution (deadline: 2)
Historical behavior+4 / 15
2 prior trades recorded in this security
Frequency & clustering0 / 15
No clustered activity in the dataset
Market events0 / 10
No material company filing within 60 days after the trade
The Insider Score measures how far a disclosure deviates from normal filing patterns. A high score is a prompt for research, not evidence of illegal insider trading.
DiPerna Dino filed this Form 4 reporting a tax withholding of CIEN on Dec 20, 2025. It became public on Dec 23, 2025. The filing establishes the reported transaction and the filer's stated role. It does not establish why the trade was made or what the filer knew.
Extraction
Method
Form 4 XML
Confidence
1.00
SVP Global R&D
DiPerna Dinocik:0001998460
Issuer
CIENA CORPcik:0000936395
Revision history · 0
No field has changed since this record was first ingested.
