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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, Q3 2025

Institutional positions in Ciena Corp as of Sep 30, 2025. 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
689
+134 vs. Q2 2025
Shares held
139.2M
−1.59M (−1.1%) vs. Q2 2025
Total value
$20.3B
+$8.83B (+77.1%) vs. Q2 2025
New holders
181
175 more added
Sold out
47
261 more reduced

8 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2025: 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 holdersQ3 2025: 689 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 heldQ3 2025: $20.3B
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, Q3 2025

Shares, value and share of portfolio for each institution holding Ciena Corp; share changes are against Q2 2025.

Institutions holding CIEN in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
SRS Capital Advisors, Inc.40,435$5.89M0.09%+39,752+5,820.2%Added
Hillsdale Investment Management Inc.40,700$5.93M0.18%+29,200+253.9%Added
Victory Capital Management Inc40,870$5.95M0.00%−4,101−9.1%Reduced
Handelsbanken Fonder AB41,062$5.98M0.02%+3,800+10.2%Added
Comerica Bank41,077$5.98M0.02%−6,462−13.6%Reduced
Harbour Capital Advisors, LLC39,536$5.99M1.23%−939−2.3%Reduced
Credit Agricole S A41,591$6.06M0.02%+41,591New
Arizona State Retirement System41,832$6.09M0.03%+348+0.8%Added
Toroso Investments, LLC42,533$6.20M0.03%−1,051−2.4%Reduced
Algert Global LLC42,630$6.21M0.10%+42,630New
Zurcher Kantonalbank (Zurich Cantonalbank)43,711$6.37M0.01%+1,297+3.1%Added
Paralel Advisors LLC44,268$6.45M0.25%+57+0.1%Added
Teachers Retirement System of the State of Kentucky45,104$6.57M0.05%00.0%Unchanged
Providence Capital Advisors, LLC45,476$6.62M1.15%−39,759−46.6%Reduced
Qube Research & Technologies Ltd45,684$6.65M0.01%+45,684New
Yousif Capital Management, LLC45,815$6.67M0.07%−3,734−7.5%Reduced
CWM, LLC45,848$6.68M0.02%+19,899+76.7%Added
Sit Investment Associates Inc46,775$6.81M0.14%00.0%Unchanged
King Luther Capital Management Corp46,820$6.82M0.03%00.0%Unchanged
Public Employees Retirement System of Ohio47,339$6.90M0.02%+254+0.5%Added
First Manhattan Co47,341$6.90M0.02%−5,531−10.5%Reduced
New Age Alpha Advisors, LLC47,494$6.92M0.29%−1,142−2.3%Reduced
Aquatic Capital Management LLC47,844$6.97M0.13%+47,844New
J. Safra Sarasin Holding AG48,226$7.03M0.11%−106,845−68.9%Reduced
Thrivent Financial for Lutherans49,351$7.19M0.01%−484,903−90.8%Reduced
Flputnam Investment Management Co49,868$7.26M0.11%−91−0.2%Reduced
Susquehanna International Group, LLP50,015$7.29M0.01%+47,134+1,636.0%Added
State of New Jersey Common Pension Fund D50,798$7.40M0.03%+394+0.8%Added
National Bank of Canada50,941$7.42M0.01%−44,840−46.8%Reduced
Illinois Municipal Retirement Fund51,075$7.44M0.10%+6,520+14.6%Added
Tectonic Advisors LLC52,514$7.65M0.42%−50,805−49.2%Reduced
Natixis53,635$7.81M0.04%+53,635New
Aristotle Capital Boston, LLC53,779$7.83M0.40%−3,603−6.3%Reduced
Man Group plc54,025$7.87M0.02%+54,025New
Mariner, LLC54,334$7.91M0.01%−8,947−14.1%Reduced
State of Tennessee, Treasury Department54,632$7.96M0.03%−2,825−4.9%Reduced
Diameter Capital Partners LP62,000$9.03M0.95%+62,000New
Police & Firemen's Retirement System of New Jersey62,446$9.10M0.07%+8,437+15.6%Added
Treasurer of the State of North Carolina63,418$9.24M0.03%−2,476−3.8%Reduced
Verition Fund Management LLC63,722$9.28M0.05%−102,394−61.6%Reduced
Calamos Advisors LLC64,059$9.33M0.04%+42,104+191.8%Added
Amalgamated Bank65,124$9.49M0.07%−304−0.5%Reduced
Mutual of America Capital Management LLC65,288$9.51M0.10%−5,401−7.6%Reduced
Oppenheimer Asset Management Inc.67,234$9.79M0.11%−78,324−53.8%Reduced
First Eagle Investment Management, LLC67,400$9.82M0.02%−50,949−43.0%Reduced
Canada Pension Plan Investment Board68,600$9.99M0.01%+63,800+1,329.2%Added
D. E. Shaw & Co., Inc.68,712$10.0M0.01%+3,381+5.2%Added
Kornitzer Capital Management Inc68,769$10.0M0.20%00.0%Unchanged
Talos Asset Management LP69,200$10.1M1.94%+69,200New
Voya Investment Management LLC69,264$10.1M0.01%−13,628−16.4%Reduced
Silvercrest Asset Management Group LLC70,829$10.3M0.07%−50,982−41.9%Reduced
Intech Investment Management LLC71,266$10.4M0.09%−64,421−47.5%Reduced
MetLife Investment Management72,655$10.6M0.05%−3,869−5.1%Reduced
Two Sigma Advisers, LP77,616$11.3M0.02%+2,500+3.3%Added
Cerity Partners LLC78,276$11.4M0.02%+16,255+26.2%Added
Atika Capital Management LLC80,000$11.7M0.99%+80,000New
Hudson Valley Investment Advisors Inc80,616$11.7M1.22%−7,962−9.0%Reduced
Select Equity Group, L.P.83,538$12.2M0.05%+13,665+19.6%Added
Quantinno Capital Management LP86,086$12.5M0.03%+33,366+63.3%Added
Portolan Capital Management, LLC88,786$12.9M0.70%+88,786New
Bank Julius Baer & Co. Ltd, Zurich91,953$13.4M0.04%−18,515−16.8%Reduced
State of Wisconsin Investment Board95,401$13.9M0.03%−28,950−23.3%Reduced
Stifel Financial Corp96,508$14.1M0.01%−5,290−5.2%Reduced
Manufacturers Life Insurance Company, The97,419$14.2M0.01%−8,959−8.4%Reduced
Front Street Capital Management, Inc.97,873$14.3M2.20%−2,423−2.4%Reduced
Bienville Capital Management, LLC99,295$14.5M2.76%−181−0.2%Reduced
Prudential Financial Inc104,604$15.2M0.02%−9,472−8.3%Reduced
Great West Life Assurance Co106,068$15.3M0.02%+1,284+1.2%Added
LPL Financial LLC105,343$15.3M0.00%+41,314+64.5%Added
LMR Partners LLP106,500$15.5M0.20%−178,500−62.6%Reduced
Impax Asset Management Group plc110,239$16.1M0.09%−79,675−42.0%Reduced
New York State Common Retirement Fund112,011$16.3M0.02%+31,225+38.7%Added
Penserra Capital Management LLC112,292$16.4M0.20%−55,919−33.2%Reduced
Glenmede Investment Management, LP112,518$16.4M0.08%−72,331−39.1%Reduced
BNP Paribas Arbitrage, SA112,637$16.4M0.01%+85,978+322.5%Added
GF Fund Management Co. Ltd.114,555$16.7M0.30%+114,555New
Delta Global Management LP122,944$17.9M1.31%+93,681+320.1%Added
Peregrine Capital Management LLC123,368$18.0M0.54%−30,611−19.9%Reduced
State Board of Administration of Florida Retirement System126,470$18.4M0.03%−19,311−13.2%Reduced
Twin Tree Management, LP131,506$19.2M0.89%+34,466+35.5%Added
California State Teachers Retirement System133,436$19.4M0.02%+540.0%Added
Brevan Howard Capital Management LP137,727$20.1M0.29%+130,649+1,845.8%Added
Macquarie Group Ltd140,312$20.4M0.02%−10,034−6.7%Reduced
LMCG Investments, LLC142,583$20.8M1.22%−4,051−2.8%Reduced
CloudAlpha Capital Management Limited/Hong Kong143,200$20.9M1.87%+143,200New
New York State Teachers Retirement System143,431$20.9M0.04%−5,396−3.6%Reduced
TD Asset Management Inc144,300$21.0M0.02%+144,300New
Schonfeld Strategic Advisors LLC154,220$22.5M0.16%+154,220New
Perpetual Ltd154,875$22.6M0.28%−95,414−38.1%Reduced
Trexquant Investment LP157,265$22.9M0.24%+157,265New
Massachusetts Financial Services Co161,622$23.5M0.01%+161,622New
Bridgewater Associates, LP161,707$23.6M0.09%+113,751+237.2%Added
Boothbay Fund Management, LLC163,127$23.8M0.61%+34,851+27.2%Added
Retirement Systems of Alabama170,920$24.9M0.08%−2,814−1.6%Reduced
Allianz Asset Management GmbH176,919$25.8M0.03%+2,931+1.7%Added
Russell Investments Group, Ltd.180,390$26.1M0.03%−82,041−31.3%Reduced
Gotham Asset Management, LLC179,127$26.1M0.11%+2,007+1.1%Added
Cramer Rosenthal McGlynn LLC180,730$26.3M1.69%−284,761−61.2%Reduced
Wells Fargo & Company183,406$26.7M0.01%−56,014−23.4%Reduced
Barclays PLC184,266$26.8M0.01%+26,485+16.8%Added