Ciena (CIEN)Officer sold ~$1.17M

~$1.17M

Approx. value · 2,500 sh @ $467.65

193K

Holds after · shares reported

Traded

Apr 15, 2026

Filed

Apr 17, 2026

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. Feb 17, 2026Insider · 2 peopleInsiders: 2 sales (~$1.6M)
2. Mar 2, 2026InsiderCEO sold ~$1.05M of CIEN shares in the open market
3. Mar 5, 2026Company filing · Form 8-K · ResultsReported its results
4. Mar 16, 2026Insider · 2 peopleInsiders: 2 sales (~$1.9M)
5. Mar 24, 2026Insider · Their largest sale since 2024Officer sold ~$2.02M of CIEN shares in the open market
6. Mar 26, 20265% stakeThe Vanguard Group reported a passive stake (13G)
7. Mar 27, 2026InsiderOfficer sold ~$700K of CIEN shares in the open market
8. Mar 27, 2026CongressDisclosed purchase of CIEN — reported range $1,001 - $15,000
9. Mar 30, 2026CongressDisclosed purchase of CIEN — reported range $1,001 - $15,000
10. Apr 1, 2026Insider · 3 peopleInsiders: 17 sales (~$11.1M)
11. Apr 15, 2026 · this disclosureInsider · Their largest sale since 2008Officer sold ~$1.17M of CIEN shares in the open market

What came next

1. Apr 15, 2026Insider · 3 peopleInsiders: 4 sales (~$3.3M)
2. Apr 24, 20265% stakeBlackRock, Inc. reported a passive stake (13G) of 8.0%
3. Apr 29, 20265% stakeVanguard Portfolio Management reported a passive stake (13G) of 5.2%
4. Apr 29, 20265% stakeVanguard Capital Management reported a passive stake (13G) of 7.5%
5. May 1, 2026InsiderCEO sold ~$1.59M of CIEN shares in the open market
6. May 14, 2026CongressDisclosed purchase of CIEN — reported range $1,001 - $15,000
7. May 15, 2026Insider · 3 peopleInsiders: 3 sales (~$3.7M)
8. May 29, 2026CongressDisclosed purchase of CIEN — reported range $1,001 - $15,000
9. Jun 1, 2026InsiderCEO sold ~$1.67M of CIEN shares in the open market
10. Jun 4, 2026Company filing · Form 8-K · ResultsReported its results
11. Jun 8, 2026Company filing · Form 8-K · Material agreement, New debtSigned an important agreement, and took on new debt or obligations (and 2 more items)
12. Jun 15, 2026Insider · 3 peopleInsiders: 3 sales (~$3.1M)
13. Jun 24, 2026InsiderCFO sold ~$57K of CIEN shares in the open market
14. Jun 26, 2026InsiderOfficer sold ~$740K of CIEN shares in the open market
15. Jul 1, 2026Insider · 4 peopleInsiders: 4 sales (~$3.6M)
16. Jul 15, 2026Insider · 4 peopleInsiders: 5 sales (~$3.2M)
17. Aug 3, 2026InsiderCEO sold ~$1.12M of CIEN shares in the open market
18. Aug 6, 20265% stakeFMR LLC reported a passive stake (13G) of 13.5%

How to read SEC Form 4

Form 4 is the filing that officers, directors and owners of more than 10% of a US-listed company must send to the SEC within two business days after they buy, sell or otherwise change their holding of the company's stock.

Full guide: What is an SEC Form 4?

What else is on file for Ciena

For Ciena, OQRO holds 31 insider filings (SEC Form 4 or Form 144), 2 Congress trade reports and 30 fund holdings reports (13F) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its CIEN page.

Other recent filings by David M Rothenstein, SVP and Chief Strategy Officer

• SEC Form 4 at Ciena (CIEN)Sep 18, 2026
• SEC Form 4 at Ciena (CIEN)Aug 19, 2026
• SEC Form 4 at Ciena (CIEN)Jul 17, 2026
• SEC Form 4 at Ciena (CIEN)Jun 18, 2026
• SEC Form 4 at Ciena (CIEN)May 20, 2026

The full history of David M Rothenstein, SVP and Chief Strategy Officer is on the profile page.

How this filing works

• SEC Form 4
• Open-market purchase
• Rule 10b5-1 trading plans

Other disclosures at Ciena

• SEC Form 4Oct 6, 2026
• SEC Form 4Oct 6, 2026
• SEC Form 4Oct 6, 2026
• SEC Form 144Oct 1, 2026
• SEC Form 144Oct 1, 2026
• SEC Form 144Oct 1, 2026

Everything OQRO holds on this company is on its CIEN page.