Rothenstein David M

CIK: 0001444157
Primary company: CIENA CORP (CIEN)

Rothenstein David M is a corporate insider at CIENA CORP (CIEN) filing SEC Form 4 transactions. 576 transactions, totaling $0 in purchases and $20,378,487 in sales. Source: SEC EDGAR.

AI Insider Summary

A fixed 2,500-share sale roughly every month drives David M. Rothenstein's current selling at Ciena Corp — the latest chapter of a record that totals 576 transactions since 2008, all sales, with 709,802 shares sold and zero bought. The prices attached to those sales trace an extraordinary run: $219.28 on January 9, 2026, climbing to $300.20 by February 17, $467.65 by April 15, and a peak of $562.39 by May 15 — a 156% increase in four months. From that peak, the stock pulled back to $457.07 by June 15 and $420.91 by July 15, a 25% decline from the high but still up roughly 92% from January. Periodic tax-withholding transactions in December, March, and June — priced at $230.34, $383.89, and $428.22 respectively — corroborate the same trajectory.

A disciplined monthly sale plan

Rothenstein's recent activity shows a consistent, scheduled pattern: a fixed 2,500-share sale executed roughly once a month (January 9, February 17, April 15, May 15, June 15, and July 15, 2026) — the signature of a pre-set 10b5-1 trading plan rather than discretionary, market-timed selling.

Analysis generated by 13F Insight from SEC Form 4 filing data. Methodology
Total Transactions
576
Total Buy Value
$0
Total Sell Value
$20.38M
Net Activity
$-20.38M
Last Transaction
Jul 2026
Companies
1

Companies

Transaction History

Source: SEC EDGAR Form 4 insider transaction filings.

Type
Sale
Shares
2,500
Price
$420.91
Value
$1.05M
Type
Tax Payment
Shares
220
Price
$428.22
Value
$94K
Type
Tax Payment
Shares
436
Price
$428.22
Value
$187K
Type
Tax Payment
Shares
811
Price
$428.22
Value
$347K
Type
Tax Payment
Shares
204
Price
$428.22
Value
$87K
Type
Tax Payment
Shares
679
Price
$428.22
Value
$291K
Type
Sale
Shares
2,500
Price
$457.07
Value
$1.14M
Type
Sale
Shares
2,500
Price
$562.39
Value
$1.41M
Type
Sale
Shares
2,500
Price
$467.65
Value
$1.17M
Type
Tax Payment
Shares
220
Price
$383.89
Value
$84K
Type
Tax Payment
Shares
436
Price
$383.89
Value
$167K
Type
Tax Payment
Shares
811
Price
$383.89
Value
$311K
Type
Tax Payment
Shares
174
Price
$383.89
Value
$67K
Type
Tax Payment
Shares
472
Price
$383.89
Value
$181K
Type
Sale
Shares
2,500
Price
$300.20
Value
$750K
Type
Sale
Shares
2,500
Price
$219.28
Value
$548K
Type
Tax Payment
Shares
1,557
Price
$230.34
Value
$359K
Type
Tax Payment
Shares
2,091
Price
$230.34
Value
$482K
Type
Tax Payment
Shares
1,819
Price
$230.34
Value
$419K
Type
Tax Payment
Shares
8,682
Price
$230.34
Value
$2.00M