Ciena (CIEN)JPMORGAN CHASE & CO. cut its CIEN stake below 5% (3.9%) 3.9%

3.9%

Stake · was 7.7%

5.62M

Shares owned

Stake as of

Aug 31, 2026

Filed

Sep 3, 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. Mar 27, 2026CongressDisclosed purchase of CIEN — reported range $1,001 - $15,000
2. Mar 30, 2026CongressDisclosed purchase of CIEN — reported range $1,001 - $15,000
3. Jul 1, 2026Insider · 4 peopleInsiders: 4 sales (~$3.6M)
4. Jul 15, 2026Insider · 4 peopleInsiders: 5 sales (~$3.2M)
5. Aug 3, 2026InsiderCEO sold ~$1.12M of CIEN shares in the open market
6. Aug 6, 20265% stakeFMR LLC reported a passive stake (13G) of 13.5%
7. Aug 14, 2026Insider · 2 peopleInsiders: 2 sales (~$3.2M)
8. Aug 17, 2026Insider · 2 peopleInsiders: 2 sales (~$1.8M)

What came next

1. Sep 1, 2026InsiderCEO sold ~$1.07M of CIEN shares in the open market
2. Sep 3, 2026Company filing · Form 8-K · ResultsReported its results
3. Sep 3, 20265% stakeJPMORGAN CHASE & CO. reported a passive stake (13G) of 3.9%
4. Sep 15, 2026Insider · 4 peopleInsiders: 4 sales (~$2.3M)
5. Sep 16, 2026InsiderOfficer sold ~$87K of CIEN shares in the open market
6. Sep 23, 2026InsiderDirector sold ~$1.34M of CIEN shares in the open market
7. Sep 24, 2026InsiderDirector sold ~$1.02M of CIEN shares in the open market
8. Sep 25, 2026InsiderOfficer sold ~$569K of CIEN shares in the open market
9. Oct 1, 2026Insider · 3 peopleInsiders: 3 sales (~$1.7M)

How to read SEC Schedule 13G

A Schedule 13D and a Schedule 13G both disclose beneficial ownership of more than 5% of a US company's voting shares. A 13D is the long form, filed by holders who may seek to influence or control the company, and it must state what they intend to do. A 13G is the short form, open only to passive holders and to certain institutions holding in the ordinary course of business, and it asks no question about intent.

Full guide: Schedule 13D vs Schedule 13G: what is the difference?

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.

How this filing works

• Schedule 13D vs 13G

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.