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LOOMIS SAYLES & CO L P

Position in CIEN — Ciena Corp

CIK 312348 BOSTON, MA

Position in CIEN

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$19,092,594
-$16,357,851 QoQ
Shares Held
38,920
-57.4% QoQ
Ownership
0.027%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
#207
of 1,218 holders
Holding Since
Mar 2020
24 quarters on record
Voting authority Sole 98% Shared 0% None 2%

Common Shares in CIEN Over Time

Shares Held

Position Value (USD)

Position in Communication Equipment

Technology · as of Jun 30, 2026

LOOMIS SAYLES & CO L P holds $141,359,105 across 5 Communication Equipment names. CIEN ranks #3 (13.5% of the industry book) .

# Ticker Company Shares Value (USD) Open
3 CIEN
Ciena Corp
This page
38,920 $19,092,594

All Filings in CIEN

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24 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $19,092,594 38,920
2026-03-31 $35,450,445 91,313
2025-12-31 $34,140,809 145,982
2025-09-30 $45,354,790 311,353
2025-06-30 $29,071,245 357,448
2025-03-31 $25,435,046 420,901
2024-12-31 $36,511,552 430,510
2024-09-30 $27,341,463 443,927
2024-06-30 $21,881,042 454,152
2024-03-31 $30,725,756 621,350
2023-12-31 $29,104,680 646,627
2023-09-30 $29,053,509 614,759
2023-06-30 $29,587,698 696,345
2023-03-31 $37,832,203 720,339
2022-12-31 $36,857,928 722,988
2022-09-30 $27,127,922 670,985
2022-06-30 $30,977,927 677,854
2022-03-31 $41,396,587 682,774
2021-12-31 $50,891,639 661,188
2021-09-30 $29,626,843 576,959
2021-06-30 $28,981,927 509,438
2020-09-30 $12,414,555 312,788
2020-06-30 $29,581,487 546,187
2020-03-31 $20,014,557 502,752