# CIENA CORP COM NEW

CIENA CORP COM NEW is a security (CUSIP 171779909) tracked across SEC portfolio filings. 7 institutional managers reported $302.8M on Form 13F as of 2026-06-30.

## Summary

- Issuer: CIENA CORP
- Class: COM NEW
- CUSIP: 171779909
- 13F holders: 7
- 13F value: $302.8M
- 13F period: 2026-06-30
- N-PORT fund positions: 0

## Top institutional holders (Form 13F)

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| IMC-Chicago, LLC | CHICAGO, IL | $263.1M | — |
| [GROUP ONE TRADING, L.P.](https://search.stillhousedata.com/firm/37484) | CHICAGO, IL | $23.5M | — |
| [SIMPLEX TRADING, LLC](https://search.stillhousedata.com/firm/153585) | CHICAGO, IL | $11.8M | — |
| JPMORGAN CHASE & CO | NEW YORK, NY | $4.3M | — |
| [AlphaCore Capital LLC](https://search.stillhousedata.com/firm/174346) | LA JOLLA, CA | $105K | 20 |
| [HRT FINANCIAL LP](https://search.stillhousedata.com/firm/152144) | NEW YORK, NY | $10K | 25,700 |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | BIRMINGHAM, AL | — | — |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/171779909.md)
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