| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 10% | +10% | $3,015,599,501 | +$237,518,344 | 14,537,914 | +8.5% | BlackRock, Inc. | 30 Nov 2025 |
| JPMORGAN CHASE & CO | 7.7% | $2,537,894,563 | 10,851,732 | JPMORGAN CHASE & CO. | 31 Dec 2025 |
As of 30 Sep 2025, 680 institutional investors reported holding 139,175,858 shares of CIENA CORP - Common Stock, $0.01 par value (CIEN). This represents 99% of the company’s total 140,931,584 outstanding shares.
The largest institutional shareholders of CIENA CORP - Common Stock, $0.01 par value (CIEN) together control 70% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| FMR LLC | 15% | 21,158,386 | -0.35% | 0.16% | $3,082,141,960 |
| BlackRock, Inc. | 11% | 15,596,111 | -8.6% | 0.04% | $2,271,885,416 |
| VANGUARD GROUP INC | 11% | 15,068,602 | -0.13% | 0.03% | $2,195,043,254 |
| JPMORGAN CHASE & CO | 4.6% | 6,462,840 | +23% | 0.06% | $941,451,166 |
| STATE STREET CORP | 3.1% | 4,352,281 | -2.3% | 0.02% | $633,996,773 |
| BANK OF AMERICA CORP /DE/ | 2.2% | 3,131,414 | -10% | 0.03% | $456,153,078 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 1.9% | 2,647,493 | +910% | 0.04% | $385,661,000 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.8% | 2,541,489 | +1.5% | 0.02% | $370,288,181 |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 1.8% | 2,506,186 | -18% | 0.95% | $365,068,000 |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 1.7% | 2,440,888 | -9.9% | 0.92% | $355,564,155 |
| BARROW HANLEY MEWHINNEY & STRAUSS LLC | 1.5% | 2,159,454 | -49% | 1% | $314,567,664 |
| LONE PINE CAPITAL LLC | 1.4% | 2,006,662 | 2.1% | $292,310,454 | |
| DIMENSIONAL FUND ADVISORS LP | 1.4% | 1,995,699 | -12% | 0.06% | $290,690,722 |
| Jericho Capital Asset Management L.P. | 1.4% | 1,983,000 | +49% | 3% | $288,863,610 |
| Capital World Investors | 1.3% | 1,836,981 | +7.6% | 0.04% | $267,593,022 |
| MORGAN STANLEY | 1.2% | 1,741,875 | -6.9% | 0.02% | $253,739,179 |
| AQR CAPITAL MANAGEMENT LLC | 1.1% | 1,502,468 | +23% | 0.14% | $218,391,169 |
| Polar Capital Holdings Plc | 1% | 1,463,211 | +14% | 1% | $213,145,946 |
| Atreides Management, LP | 0.99% | 1,400,764 | +11% | 5.3% | $204,049,292 |
| Whale Rock Capital Management LLC | 0.95% | 1,337,800 | +60% | 2.3% | $194,877,326 |
| Invesco Ltd. | 0.88% | 1,238,745 | +340% | 0.03% | $180,447,984 |
| Hood River Capital Management LLC | 0.84% | 1,183,207 | -2.7% | 2% | $172,357,764 |
| NORTHERN TRUST CORP | 0.84% | 1,183,114 | -1% | 0.02% | $172,344,217 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 0.81% | 1,143,855 | +2174% | 0.11% | $166,625,358 |
| CITADEL ADVISORS LLC | 0.77% | 1,086,529 | +11261% | 0.13% | $158,274,679 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 2,758,524 | $661,459,955 | -$194,858,404 | $233.87 | 96 |
| 2025 Q3 | 139,175,858 | $20,279,398,838 | -$154,413,858 | $145.67 | 680 |
| 2025 Q2 | 141,010,744 | $11,468,509,941 | +$481,557,696 | $81.33 | 559 |
| 2025 Q1 | 136,467,772 | $8,249,736,161 | -$352,226,109 | $60.43 | 540 |
| 2024 Q4 | 140,114,280 | $11,883,335,552 | -$61,585,699 | $84.81 | 527 |
| 2024 Q3 | 142,017,321 | $8,750,684,994 | +$133,384,203 | $61.59 | 463 |
| 2024 Q2 | 139,926,790 | $6,741,558,459 | +$152,727,235 | $48.18 | 449 |
| 2024 Q1 | 136,840,009 | $6,760,310,214 | +$190,021,659 | $49.45 | 466 |
| 2023 Q4 | 3,068,599 | $138,126,061 | +$3,505,383 | $45.01 | 4 |
| 2023 Q3 | 131,833,471 | $6,218,441,798 | -$104,347,240 | $47.26 | 455 |
| 2023 Q2 | 134,081,539 | $5,697,097,241 | -$161,943,571 | $42.49 | 452 |
| 2023 Q1 | 136,103,206 | $7,144,227,309 | +$12,770,040 | $52.52 | 470 |
| 2022 Q4 | 138,767,543 | $7,074,392,865 | -$184,602,983 | $50.98 | 437 |
| 2022 Q3 | 142,046,719 | $5,745,839,590 | +$265,398,455 | $40.43 | 400 |
| 2022 Q2 | 133,414,031 | $6,092,940,231 | +$38,565,385 | $45.70 | 429 |
| 2022 Q1 | 128,361,685 | $7,778,992,970 | -$188,525,389 | $60.63 | 469 |
| 2021 Q4 | 132,138,474 | $10,168,988,692 | -$278,598,017 | $76.97 | 501 |
| 2021 Q3 | 132,952,403 | $6,827,467,681 | -$254,737,641 | $51.35 | 440 |
| 2021 Q2 | 139,217,846 | $7,919,353,415 | -$19,215,943 | $56.89 | 454 |
| 2021 Q1 | 138,187,416 | $7,560,699,979 | +$18,295,377 | $54.72 | 440 |
| 2020 Q4 | 140,962,008 | $7,443,799,944 | +$414,726,161 | $52.85 | 440 |
| 2020 Q3 | 135,902,227 | $5,395,160,896 | -$87,066,255 | $39.69 | 450 |
| 2020 Q2 | 136,713,795 | $7,403,228,714 | +$45,333,097 | $54.16 | 472 |
| 2020 Q1 | 136,606,875 | $5,449,958,907 | -$214,790,284 | $39.81 | 402 |
| 2019 Q4 | 142,458,588 | $6,078,141,521 | +$22,045,334 | $42.69 | 400 |
| 2019 Q3 | 139,289,531 | $5,458,050,646 | +$105,800,805 | $39.23 | 399 |
| 2019 Q2 | 136,159,276 | $5,596,867,426 | -$68,567,069 | $41.13 | 400 |
| 2019 Q1 | 145,681,121 | $5,430,065,078 | +$23,144,881 | $37.34 | 404 |
| 2018 Q4 | 144,748,025 | $4,904,654,827 | -$311,059,938 | $33.91 | 354 |
| 2018 Q3 | 153,545,118 | $4,795,834,571 | +$79,152,327 | $31.24 | 330 |
| 2018 Q2 | 149,711,386 | $3,966,694,373 | +$111,654,852 | $26.51 | 290 |
| 2018 Q1 | 147,372,622 | $3,816,155,979 | -$1,736,769 | $25.90 | 292 |
| 2017 Q4 | 148,558,391 | $3,109,553,161 | -$142,367,552 | $20.93 | 278 |
| 2017 Q3 | 152,723,279 | $3,355,380,593 | +$103,118,578 | $21.97 | 274 |
| 2017 Q2 | 146,209,440 | $3,659,419,097 | +$29,544,137 | $25.02 | 306 |
| 2017 Q1 | 147,278,242 | $3,477,401,727 | +$470,106,982 | $23.61 | 282 |
| 2016 Q4 | 142,402,037 | $3,474,745,256 | +$131,466,339 | $24.41 | 288 |
| 2016 Q3 | 136,951,627 | $2,984,327,807 | +$132,556,668 | $21.80 | 266 |
| 2016 Q2 | 130,135,355 | $2,440,629,256 | -$106,462,127 | $18.75 | 273 |
| 2016 Q1 | 138,250,532 | $2,628,489,754 | -$70,719,553 | $19.02 | 258 |
| 2015 Q4 | 140,983,356 | $2,916,341,967 | +$149,345,593 | $20.69 | 277 |
| 2015 Q3 | 134,207,256 | $2,780,324,237 | +$251,620,469 | $20.72 | 285 |
| 2015 Q2 | 119,836,621 | $2,837,219,382 | +$151,688,622 | $23.68 | 271 |
| 2015 Q1 | 116,087,472 | $2,242,535,128 | +$154,211,639 | $19.31 | 240 |
| 2014 Q4 | 108,193,502 | $2,099,693,633 | +$37,056,682 | $19.41 | 218 |
| 2014 Q3 | 107,571,502 | $1,795,995,702 | -$50,478,088 | $16.72 | 223 |
| 2014 Q2 | 109,592,234 | $2,372,966,550 | -$20,223,077 | $21.66 | 232 |
| 2014 Q1 | 105,623,820 | $2,399,243,671 | +$32,485,984 | $22.74 | 256 |