Skip to main content

RENAISSANCE TECHNOLOGIES LLC

Position in CIEN — Ciena Corp

CIK 1037389 NEW YORK, NY

Position in CIEN

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$90,642,733
+$52,673,839 QoQ
Shares Held
184,774
+88.9% QoQ
Ownership
0.131%
of shares outstanding
% of Portfolio
0.13%
of 13F equity value
Holder Rank
#75
of 1,197 holders
Holding Since
Mar 2020
8 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in CIEN Over Time

Shares Held

Position Value (USD)

Position in Communication Equipment

Technology · as of Jun 30, 2026

RENAISSANCE TECHNOLOGIES LLC holds $949,408,554 across 35 Communication Equipment names. CIEN ranks #4 (9.5% of the industry book) .

# Ticker Company Shares Value (USD) Open
4 CIEN
Ciena Corp
This page
184,774 $90,642,733

All Filings in CIEN

Export CSV
8 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $90,642,733 184,774
2026-03-31 $37,968,894 97,800
2025-12-31 $7,624,162 32,600
2025-03-31 $18,683,384 309,174
2023-12-31 $6,061,676 134,674
2022-03-31 $2,302,363 37,974
2021-12-31 $16,238,668 210,974
2020-03-31 $11,305,004 283,974