Position in CIEN
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$204,756,772
+$121,131,877 QoQ
Shares Held
527,411
+47.5% QoQ
Ownership
0.373%
of shares outstanding
% of Portfolio
0.08%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 87.62255622275606.ToString("F0")%
Shared 0.ToString("F0")%
None 12.377443777243933.ToString("F0")%
Common Shares in CIEN Over Time
Shares Held
Position Value (USD)
Position in Communication Equipment
Technology · as of Mar 31, 2026ALLIANCEBERNSTEIN L.P. holds $2,914,828,143 across 23 Communication Equipment names. CIEN ranks #3 (7.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | MSI |
Motorola Solutions, Inc.
|
2,794,638 | $1,212,789,052 | |
| 2 | CSCO |
Cisco Systems, Inc.
|
13,773,350 | $1,068,674,226 | |
| 3 | CIEN |
Ciena Corp
This page
|
527,411 | $204,756,772 | |
| 4 | ZBRA |
Zebra Technologies Corp
|
451,294 | $94,356,549 | |
| 5 | ASTS |
AST SpaceMobile, Inc.
|
1,024,160 | $84,872,139 | |
| 6 | LITE |
Lumentum Holdings Inc.
|
98,197 | $69,008,923 | |
| 7 | VIAV |
Viavi Solutions Inc.
|
1,739,349 | $57,885,534 | |
| 8 | HPE |
Hewlett Packard Enterprise Co
|
1,687,695 | $40,184,017 |
All Filings in CIEN
Export CSV
25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $204,756,772 | 527,411 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $83,624,895 | 357,570 | Shares | Defined | 2026-02-17 | |
| 2025-09-30 | $37,009,939 | 254,067 | Shares | Defined | 2025-11-14 | |
| 2025-06-30 | $28,192,556 | 346,644 | Shares | Defined | 2025-08-14 | |
| 2025-03-31 | $26,076,572 | 431,517 | Shares | Defined | 2025-05-15 | |
| 2024-12-31 | $37,599,071 | 443,333 | Shares | Defined | 2025-02-12 | |
| 2024-09-30 | $26,930,473 | 437,254 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $19,527,691 | 405,307 | Shares | Defined | 2024-08-14 | |
| 2024-03-31 | $12,087,310 | 244,435 | Shares | Defined | 2024-05-14 | |
| 2023-12-31 | $12,073,032 | 268,230 | Shares | Defined | 2024-02-14 | |
| 2023-09-30 | $121,611,889 | 2,573,252 | Shares | Defined | 2023-11-14 | |
| 2023-06-30 | $116,721,304 | 2,747,030 | Shares | Defined | 2023-08-15 | |
| 2023-03-31 | $226,360,097 | 4,309,979 | Shares | Defined | 2023-05-15 | |
| 2022-12-31 | $177,199,852 | 3,475,870 | Shares | Defined | 2023-02-15 | |
| 2022-09-30 | $178,372,753 | 4,411,891 | Shares | Defined | 2022-11-15 | |
| 2022-06-30 | $224,497,959 | 4,912,428 | Shares | Defined | 2022-08-15 | |
| 2022-03-31 | $318,524,373 | 5,253,577 | Shares | Defined | 2022-05-13 | |
| 2021-12-31 | $390,113,978 | 5,068,390 | Shares | Defined | 2022-02-14 | |
| 2021-09-30 | $187,867,415 | 3,658,567 | Shares | Defined | 2021-11-10 | |
| 2021-06-30 | $186,419,313 | 3,276,838 | Shares | Defined | 2021-07-30 | |
| 2021-03-31 | $139,954,170 | 2,557,642 | Shares | Defined | 2021-05-06 | |
| 2020-12-31 | $138,712,646 | 2,624,648 | Shares | Defined | 2021-02-08 | |
| 2020-09-30 | $134,668,844 | 3,393,017 | Shares | Defined | 2020-11-12 | |
| 2020-06-30 | $191,726,724 | 3,540,006 | Shares | Defined | 2020-08-13 | |
| 2020-03-31 | $169,427,100 | 4,255,893 | Shares | Defined | 2020-05-14 | |
| No filing history on record for this holder in this stock. | ||||||