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Ciena Corp

CIEN
Exchange
NYSE
Industry
Telephone & Telegraph Apparatus
SEC CIK
0000936395

In the last 90 days, Ciena Corp insiders filed 0 open-market purchases and 21 sales; 1,227 institutions reported holding it in 13F filings for Q2 2026, worth $64.6B in total; no superinvestor holds it.

13F holders, Q2 2026

Institutional positions in Ciena Corp as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
1,227
+153 vs. Q1 2026
Shares held
132.1M
−1.87M (−1.4%) vs. Q1 2026
Total value
$64.6B
+$12.9B (+24.9%) vs. Q1 2026
New holders
262
469 more added
Sold out
109
386 more reduced

11 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2026: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting CIEN on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2026: 1,227 institutions
Q1 2021: 461 institutionsQ2 2021: 467 institutionsQ3 2021: 460 institutionsQ4 2021: 523 institutionsQ1 2022: 498 institutionsQ2 2022: 458 institutionsQ3 2022: 424 institutionsQ4 2022: 463 institutionsQ1 2023: 486 institutionsQ2 2023: 470 institutionsQ3 2023: 469 institutionsQ4 2023: 451 institutionsQ1 2024: 468 institutionsQ2 2024: 454 institutionsQ3 2024: 464 institutionsQ4 2024: 534 institutionsQ1 2025: 544 institutionsQ2 2025: 563 institutionsQ3 2025: 689 institutionsQ4 2025: 854 institutionsQ1 2026: 1,085 institutionsQ2 2026: 1,227 institutions
Value heldQ2 2026: $64.6B
Q1 2021: $7.83BQ2 2021: $8.09BQ3 2021: $7.06BQ4 2021: $10.5BQ1 2022: $8.15BQ2 2022: $6.18BQ3 2022: $5.84BQ4 2022: $7.11BQ1 2023: $7.28BQ2 2023: $5.84BQ3 2023: $6.37BQ4 2023: $6.04BQ1 2024: $6.78BQ2 2024: $6.74BQ3 2024: $8.76BQ4 2024: $11.9BQ1 2025: $8.24BQ2 2025: $11.5BQ3 2025: $20.3BQ4 2025: $32.2BQ1 2026: $51.8BQ2 2026: $64.6B
Institutions holding CIEN and their total value by quarter
QuarterHoldersValue
Q2 20261,227$64.6B
Q1 20261,085$51.8B
Q4 2025854$32.2B
Q3 2025689$20.3B
Q2 2025563$11.5B
Q1 2025544$8.24B
Q4 2024534$11.9B
Q3 2024464$8.76B
Q2 2024454$6.74B
Q1 2024468$6.78B
Q4 2023451$6.04B
Q3 2023469$6.37B
Q2 2023470$5.84B
Q1 2023486$7.28B
Q4 2022463$7.11B
Q3 2022424$5.84B
Q2 2022458$6.18B
Q1 2022498$8.15B
Q4 2021523$10.5B
Q3 2021460$7.06B
Q2 2021467$8.09B
Q1 2021461$7.83B

Institutions, Q2 2026

Shares, value and share of portfolio for each institution holding Ciena Corp; share changes are against Q1 2026.

Institutions holding CIEN in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Mediolanum International Funds Ltd34,846$16.7M0.14%+17,477+100.6%Added
USS Investment Management Ltd34,350$16.9M0.07%+34,350New
Candriam Luxembourg S.C.A.34,468$16.9M0.08%+23,212+206.2%Added
CI Private Wealth, LLC34,452$16.9M0.02%+172+0.5%Added
Tairen Capital Ltd34,720$17.0M1.50%+34,720New
Abn Amro Investment Solutions35,075$17.2M0.15%+775+2.3%Added
Penserra Capital Management LLC35,104$17.2M0.13%−97−0.3%Reduced
Daiwa Securities Group Inc.35,146$17.2M0.04%+10,865+44.7%Added
UNICOM Systems, Inc.35,231$17.3M1.13%+18,400+109.3%Added
Andra AP-fonden35,899$17.6M0.20%+25,660+250.6%Added
Wealth High Governance Asset Management Ltda.36,187$17.8M1.89%−15,781−30.4%Reduced
State of Michigan Retirement System36,200$17.8M0.08%−600−1.6%Reduced
Harbour Capital Advisors, LLC38,547$17.8M3.23%−470−1.2%Reduced
Mercer Global Advisors Inc37,220$18.3M0.02%+2,959+8.6%Added
Jain Global LLC37,397$18.3M0.22%+37,397New
Northwestern Mutual Wealth Management Co37,573$18.4M0.01%+32,121+589.2%Added
MetLife Investment Management37,868$18.6M0.08%+4,952+15.0%Added
Munro Partners37,946$18.6M0.42%−177,029−82.3%Reduced
Xponance, Inc.38,508$18.9M0.12%+13,067+51.4%Added
Cetera Investment Advisers38,579$18.9M0.02%+6,536+20.4%Added
Loomis Sayles & Co L P38,920$19.1M0.02%−52,393−57.4%Reduced
Boothbay Fund Management, LLC38,948$19.1M0.37%+954+2.5%Added
Public Employees Retirement Association of Colorado39,608$19.4M0.07%−594−1.5%Reduced
Riposte Capital LLC40,000$19.6M6.66%+40,000New
Czech National Bank40,247$19.7M0.11%+1,886+4.9%Added
Arizona State Retirement System40,541$19.9M0.10%+2,257+5.9%Added
Resona Asset Management Co.,Ltd.41,284$20.2M0.09%−1,364−3.2%Reduced
Mn Services Vermogensbeheer B.V.41,200$20.2M0.15%+41,200New
SEB Asset Management AB41,522$20.4M0.08%+4,043+10.8%Added
Bienville Capital Management, LLC42,259$20.7M2.99%−27,908−39.8%Reduced
Sit Investment Associates Inc42,775$21.0M0.40%00.0%Unchanged
Lansforsakringar Fondforvaltning AB (publ)44,059$21.6M0.10%+40,546+1,154.2%Added
PEAK6 LLC44,570$21.9M0.53%+42,141+1,734.9%Added
Toronto Dominion Bank44,635$21.9M0.04%+1,458+3.4%Added
Mackenzie Financial Corp45,086$22.1M0.02%+28,193+166.9%Added
Marshall Wace, LLP45,101$22.1M0.02%−80,876−64.2%Reduced
State of New Jersey Common Pension Fund D45,720$22.4M0.08%−2,835−5.8%Reduced
State of Tennessee, Treasury Department45,794$22.5M0.07%−3,023−6.2%Reduced
Ieq Capital, LLC46,621$22.9M0.11%+1,103+2.4%Added
12th Street Asset Management Company, LLC46,777$22.9M3.27%−16,710−26.3%Reduced
Tortoise Capital Advisors, L.L.C.46,850$23.0M0.23%+21,432+84.3%Added
Front Street Capital Management, Inc.47,975$23.5M2.67%−11,630−19.5%Reduced
LMCG Investments, LLC48,141$23.6M1.26%−11,107−18.7%Reduced
Victory Capital Management Inc48,456$23.8M0.01%+3,241+7.2%Added
MUFG Securities EMEA plc48,534$23.8M0.25%+42,751+739.3%Added
Federation des caisses Desjardins du Quebec48,674$23.9M0.07%+28,423+140.4%Added
Atika Capital Management LLC48,768$23.9M2.37%+5,117+11.7%Added
Summit Financial, LLC48,934$24.0M0.26%+39,925+443.2%Added
Tredje AP-fonden50,550$24.8M0.11%−607−1.2%Reduced
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund50,630$24.8M0.12%+11,280+28.7%Added
Allen Investment Management LLC51,513$25.3M0.30%+51,513New
Capital Fund Management S.A.51,538$25.3M0.18%+34,052+194.7%Added
FengHe Fund Management Pte. Ltd.51,667$25.3M2.40%−37,587−42.1%Reduced
Rafferty Asset Management, LLC51,738$25.4M0.06%+14,631+39.4%Added
Creative Planning52,494$25.8M0.02%+3,470+7.1%Added
Quadrature Capital Ltd53,302$26.1M0.22%+53,302New
Flputnam Investment Management Co54,845$26.9M0.32%+19,078+53.3%Added
O'Shaughnessy Asset Management, LLC55,180$27.1M0.13%+17,308+45.7%Added
Cerity Partners LLC56,395$27.7M0.03%−22,122−28.2%Reduced
Nordea Investment Management AB57,582$27.7M0.02%+3,220+5.9%Added
Public Employees Retirement System of Ohio57,618$28.3M0.08%+12,336+27.2%Added
Nykredit A/S58,141$28.5M0.11%+58,141New
Nissay Asset Management Corp58,949$28.9M0.12%−1,297−2.2%Reduced
Asset Management One Co.,Ltd.59,812$29.3M0.08%+365+0.6%Added
Treasurer of the State of North Carolina59,939$29.4M0.08%−450−0.7%Reduced
Mirae Asset Global Investments Co., Ltd.60,306$29.6M0.06%−37,724−38.5%Reduced
SIH Partners, LLLP60,601$29.7M1.24%+58,092+2,315.3%Added
Clear Street Group Inc.60,716$29.8M0.09%+60,716New
Elyxium Wealth, LLC62,380$30.6M3.21%+4,528+7.8%Added
Vinva Investment Management Ltd64,231$30.8M0.21%+48,505+308.4%Added
Wellington Management Group LLP62,839$30.8M0.01%−81,538−56.5%Reduced
M & L Capital Management Ltd62,930$30.9M8.35%+7,200+12.9%Added
Mariner, LLC63,576$31.2M0.03%+142+0.2%Added
Illinois Municipal Retirement Fund65,862$32.3M0.36%+16,349+33.0%Added
Chevy Chase Trust Holdings, Inc.68,296$33.5M0.09%−1,095−1.6%Reduced
KLP Kapitalforvaltning AS68,740$33.7M0.11%+7,740+12.7%Added
Manufacturers Life Insurance Company, The69,678$34.2M0.03%−6,320−8.3%Reduced
Kovitz Investment Group Partners, LLC71,553$35.1M0.78%+70,636+7,702.9%Added
Vanguard Investments Australia, Ltd.72,306$35.5M0.09%+1,777+2.5%Added
Natixis Advisors, L.P.73,626$36.1M0.04%+6,124+9.1%Added
Handelsbanken Fonder AB75,043$36.8M0.10%+30,881+69.9%Added
Freestone Grove Partners LP76,121$37.3M0.25%−57,146−42.9%Reduced
Nomura Asset Management Co Ltd78,007$38.3M0.08%+23,901+44.2%Added
KBC Group NV78,380$38.5M0.08%+21,237+37.2%Added
Vaughan Nelson Investment Management, L.P.78,867$38.7M0.34%+23,190+41.7%Added
Panagora Asset Management Inc79,428$39.0M0.12%−21,036−20.9%Reduced
Titan Global Capital Management USA LLC80,417$39.4M5.00%−37,895−32.0%Reduced
State of Wisconsin Investment Board80,941$39.7M0.08%−15,385−16.0%Reduced
Shannon River Fund Management LLC81,298$39.9M3.56%+81,298New
HRT Financial LP81,780$40.1M0.07%+58,785+255.6%Added
Mitsubishi UFJ Trust & Banking Corp81,896$40.2M0.09%+16,712+25.6%Added
Nomura Asset Management International Inc.84,314$41.4M0.06%+18,915+28.9%Added
Universal- Beteiligungs- und Servicegesellschaft mbH84,722$41.6M0.06%+235+0.3%Added
Public Sector Pension Investment Board85,478$41.9M0.11%+60,312+239.7%Added
Silvant Capital Management LLC85,974$42.2M1.23%+85,974New
Lord, Abbett & Co. LLC88,368$43.4M0.12%+23,368+36.0%Added
Credit Agricole S A88,856$43.6M0.11%+51,710+139.2%Added
National Bank of Canada88,971$43.6M0.04%+4,483+5.3%Added
Scge Management, L.P.89,000$43.7M0.74%+89,000New
Walleye Capital LLC89,241$43.8M0.21%+31,406+54.3%Added