ROTHENSTEIN DAVID M

PrivateCIK: 1444157
Location

HANOVER, MD

ROTHENSTEIN DAVID M (Sr. VP, General Counsel) sold 1.3% of their position (2.50K shares) of CIENA CORP on the open market

Open‑market sale worth $1.41M — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderROTHENSTEIN DAVID MCIK 1444157
IssuerCIENA CORPCIK 936395
Officer· Sr. VP, General Counsel
Since Jul 2018
-2.50K
Net shares
Net seller
$1.41M
Total sold
1
Open market trades
0B · 1S
1
Total transactions
2.50K disposed
Non-Derivative Transactions1

Common Stock

Direct
S · Sale

Shares

2.50K

Price / share

$562.39

Trade value

$1.41M

% of position

1.3%
5/15/2026
192.58K190.08K
Total

Net shares

2.50K

Net value

-$1.41M

Derivative Transactions0
No derivative transactions reported
ROTHENSTEIN DAVID M — Insider Transaction (Form 4) Filed May 19, 2026 | Finecho