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MILLENNIUM MANAGEMENT LLC

Position in CIEN — Ciena Corp

CIK 1273087 NEW YORK, NY

Position in CIEN

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$35,218,672
-$63,618,531 QoQ
Shares Held
90,716
-78.5% QoQ
Ownership
0.064%
of shares outstanding
% of Portfolio
0.03%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
24 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in CIEN Over Time

Shares Held

Position Value (USD)

Derivatives in CIEN

reported options exposure · as of Mar 31, 2026
CallValue
$34,940,700
CallShares
90,000
PutValue
$21,507,942
PutShares
55,400

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Communication Equipment

Technology · as of Mar 31, 2026

MILLENNIUM MANAGEMENT LLC holds $871,313,019 across 27 Communication Equipment names. CIEN ranks #8 (4.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
8 CIEN
Ciena Corp
This page
90,716 $35,218,672

All Filings in CIEN

Export CSV
37 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $21,507,942 55,400
2026-03-31 $34,940,700 90,000
2026-03-31 $35,218,672 90,716
2025-12-31 $98,837,203 422,616
2025-12-31 $16,721,705 71,500
2025-12-31 $13,915,265 59,500
2025-09-30 $10,794,147 74,100
2025-09-30 $73,400,636 503,883
2025-09-30 $16,009,133 109,900
2025-06-30 $7,474,227 91,900
2025-06-30 $22,083,209 271,526
2025-06-30 $11,052,747 135,900
2025-03-31 $8,085,534 133,800
2025-03-31 $38,315,701 634,051
2025-03-31 $5,897,968 97,600
2024-12-31 $2,976,831 35,100
2024-12-31 $10,007,580 118,000
2024-12-31 $19,605,697 231,172
2024-09-30 $1,564,386 25,400
2024-09-30 $25,421,765 412,758
2024-06-30 $3,105,971 64,466
2024-03-31 $430,363 8,703
2023-12-31 $10,904,122 242,260
2023-09-30 $15,095,836 319,421
2023-06-30 $46,284,654 1,089,307
2023-03-31 $42,675,493 812,557
2022-12-31 $59,974,758 1,176,437
2022-09-30 $1,030,520 25,489
2022-06-30 $2,158,868 47,240
2022-03-31 $52,810,791 871,034
2021-12-31 $21,222,476 275,724
2021-09-30 $17,503,725 340,871
2021-06-30 $3,279,651 57,649
2021-03-31 $911,088 16,650
2020-09-30 $1,237,176 31,171
2020-06-30 $7,590,578 140,151
2020-03-31 $10,987,241 275,992