Form4insider filings, from the source

Insider · CIK 0001444157

David M Rothenstein

Files at: CIEN. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $4.1M · 4net −$4.1M
$10k$10k$100k$100k$1M$1M$10M$10MbuyssalesMar 28Apr 27May 28Jun 28Jul 29Aug 28Sep 28

Reported trades — common stock

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Sep 20, 2026 FForm 4 →Sep 22, 3:09 pm EDTCIENA CORPCIEN2,350$348.80$819,680175,381—
Sep 15, 2026 SForm 4 →Sep 17, 4:22 pm EDTCIENA CORPCIEN2,500$330.48$826,208177,731−1.39%10b5-1
Aug 14, 2026 SForm 4 →Aug 18, 5:03 pm EDTCIENA CORPCIEN2,500$438.10$1,095,250180,231−1.37%10b5-1
Jul 15, 2026 SForm 4 →Jul 17, 12:42 pm EDTCIENA CORPCIEN2,500$420.91$1,052,284182,731−1.35%10b5-1
Jun 20, 2026 FForm 4 →Jun 23, 1:51 pm EDTCIENA CORPCIEN2,350$428.22$1,006,317185,231—
Jun 15, 2026 SForm 4 →Jun 17, 5:47 pm EDTCIENA CORPCIEN2,500$457.07$1,142,673187,581−1.32%10b5-1

Reported trades — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.