| 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 | 2,151,133 | $519,409,421 | -$299,110,405 | $233.87 | 95 |
| 2025 Q3 | 139,175,858 | $20,279,398,838 | -$154,483,907 | $145.67 | 680 |
| 2025 Q2 | 141,010,238 | $11,468,438,045 | +$481,577,370 | $81.33 | 558 |
| 2025 Q1 | 136,482,829 | $8,250,645,953 | -$352,226,003 | $60.43 | 542 |
| 2024 Q4 | 140,639,777 | $11,927,949,714 | -$30,379,194 | $84.81 | 533 |
| 2024 Q3 | 142,165,351 | $8,759,802,337 | +$137,878,037 | $61.59 | 461 |
| 2024 Q2 | 140,001,910 | $6,745,177,951 | +$143,699,694 | $48.18 | 449 |
| 2024 Q1 | 137,161,500 | $6,776,208,736 | +$192,160,909 | $49.45 | 464 |
| 2023 Q4 | 134,005,592 | $6,036,621,954 | -$79,214,547 | $45.01 | 448 |
| 2023 Q3 | 134,977,056 | $6,366,989,947 | -$105,230,138 | $47.26 | 466 |
| 2023 Q2 | 137,179,871 | $5,828,746,458 | -$80,634,569 | $42.49 | 465 |
| 2023 Q1 | 138,682,996 | $7,279,718,619 | -$41,936,127 | $52.52 | 480 |
| 2022 Q4 | 139,408,197 | $7,107,065,096 | -$180,505,509 | $50.98 | 448 |
| 2022 Q3 | 144,336,104 | $5,838,400,545 | +$344,794,490 | $40.43 | 410 |
| 2022 Q2 | 135,142,356 | $6,176,263,763 | +$21,390,413 | $45.70 | 440 |
| 2022 Q1 | 134,228,774 | $8,134,405,743 | -$175,237,375 | $60.63 | 480 |
| 2021 Q4 | 135,807,566 | $10,450,586,776 | -$70,604,523 | $76.97 | 508 |
| 2021 Q3 | 136,655,447 | $7,017,619,377 | -$328,461,486 | $51.35 | 439 |
| 2021 Q2 | 142,196,886 | $8,088,830,406 | -$63,184,128 | $56.89 | 455 |
| 2021 Q1 | 143,076,551 | $7,828,233,443 | +$18,390,334 | $54.72 | 446 |
| 2020 Q4 | 143,689,781 | $7,587,963,140 | +$410,394,154 | $52.85 | 447 |
| 2020 Q3 | 137,169,579 | $5,445,472,887 | -$76,893,140 | $39.69 | 457 |
| 2020 Q2 | 137,023,504 | $7,420,001,250 | +$30,338,737 | $54.16 | 477 |
| 2020 Q1 | 137,025,251 | $5,466,684,248 | -$205,605,946 | $39.81 | 407 |
| 2019 Q4 | 142,510,400 | $6,080,361,404 | +$21,201,439 | $42.69 | 404 |
| 2019 Q3 | 142,682,103 | $5,591,140,949 | +$149,085,938 | $39.23 | 403 |
| 2019 Q2 | 138,428,456 | $5,690,198,088 | -$185,046,026 | $41.13 | 404 |
| 2019 Q1 | 145,690,633 | $5,430,421,262 | +$27,842,735 | $37.34 | 408 |
| 2018 Q4 | 145,194,901 | $4,919,874,247 | -$298,271,245 | $33.91 | 358 |
| 2018 Q3 | 153,864,710 | $4,805,974,344 | +$85,787,217 | $31.24 | 336 |
| 2018 Q2 | 151,385,005 | $4,011,063,102 | +$68,555,358 | $26.51 | 294 |
| 2018 Q1 | 149,043,718 | $3,859,435,666 | -$8,041,511 | $25.90 | 296 |
| 2017 Q4 | 150,178,949 | $3,143,475,684 | -$121,805,010 | $20.93 | 282 |
| 2017 Q3 | 153,364,478 | $3,369,469,810 | +$107,225,635 | $21.97 | 278 |
| 2017 Q2 | 147,471,057 | $3,690,983,516 | +$22,698,351 | $25.02 | 309 |
| 2017 Q1 | 147,288,137 | $3,477,634,778 | +$469,538,225 | $23.61 | 285 |
| 2016 Q4 | 142,453,541 | $3,476,632,626 | +$129,800,445 | $24.41 | 292 |
| 2016 Q3 | 137,081,009 | $2,987,147,807 | +$134,429,675 | $21.80 | 269 |
| 2016 Q2 | 130,207,962 | $2,441,990,256 | -$109,417,708 | $18.75 | 276 |
| 2016 Q1 | 138,574,763 | $2,634,656,754 | -$74,689,389 | $19.02 | 260 |
| 2015 Q4 | 141,713,927 | $2,931,455,967 | +$151,612,371 | $20.69 | 282 |
| 2015 Q3 | 134,533,506 | $2,787,084,237 | +$264,900,161 | $20.72 | 287 |
| 2015 Q2 | 121,574,549 | $2,878,353,382 | +$149,867,111 | $23.68 | 277 |
| 2015 Q1 | 116,194,951 | $2,244,609,128 | +$157,257,484 | $19.31 | 243 |
| 2014 Q4 | 108,195,948 | $2,099,739,633 | +$34,778,897 | $19.41 | 220 |
| 2014 Q3 | 108,501,484 | $1,811,541,702 | -$59,659,854 | $16.72 | 226 |
| 2014 Q2 | 111,081,011 | $2,404,270,993 | +$81,068,235 | $21.66 | 235 |
| 2014 Q1 | 106,880,122 | $2,427,790,103 | +$50,602,886 | $22.74 | 260 |