greeksoup/ stock research
Stock research / United States / CIEN / 13F holders

Ciena Corp. 13F holders

1,229 funds reported a position in Ciena Corp. in their 13F for the quarter ended 30 June 2026, together 132.4 million shares worth $64.72 billion. Against the quarter before, 226 opened a position, 466 added, 379 trimmed and 107 sold out; together they sold a net 3.5 million shares. The largest holders: FMR LLC, BlackRock, Inc. and JPMorgan Chase & Co.

Funds holding1,229+142 on Q1 2026
Shares they held132.4Mworth $64.72 billion
Net sold on the quarter3.5M sharesabout $1.72 billion at the funds' values
Funds buying to selling692 to 486opened or added, to cut or sold
Opened 226Added 466Held 146Trimmed 379Sold out 107
Opened: 226 fundsAdded: 466 fundsHeld: 146 fundsTrimmed: 379 fundsSold out: 107 funds

What each fund did in CIEN against its 13F for the quarter before; a change under 0.1% of a holding counts as held

Q3 2024: 465 funds, 143.1 million shares465Q3 2024Q4 2024: 536 funds, 140.3 million shares536Q4 2024Q1 2025: 547 funds, 136.4 million shares547Q1 2025Q2 2025: 565 funds, 141.3 million shares565Q2 2025Q3 2025: 689 funds, 145.6 million shares689Q3 2025Q4 2025: 857 funds, 152.2 million shares857Q4 2025Q1 2026: 1,087 funds, 134.3 million shares1,087Q1 2026Q2 2026: 1,229 funds, 132.4 million shares1,229Q2 2026

Funds reporting a position in CIEN in their 13F, each quarter; hover a bar for the shares they held

Filed so far for the quarter to 30 September 2026

4,696 funds have filed their 13F for the quarter so far; the rest are due by 16 November 2026. Of those, 549 reported a position in Ciena Corp.: 50 opened one, 188 added, 199 trimmed and 112 sold out, a net 1.0 million shares bought.

FundChange in sharesShares nowStatusFiling
FengHe Fund Management Pte. Ltd.+169,527221,194added13F
Assenagon Asset Management S.A.-161,620266,384trimmed13F
Allspring Global Investments Holdings, LLC+135,218165,887added13F
Citigroup Inc.+142,992439,526added13F
Truist Financial Corp.+127,377134,127added13F
Aberdeen Group plc+115,086134,651added13F
Deutsche Bank AG+103,254678,295added13F
Pictet Asset Management Holding SA+97,505512,203added13F
Exchange Traded Concepts, LLC+73,32994,964added13F
Amundi+73,254748,359added13F
DekaBank Deutsche Girozentrale+62,81762,817new13F
Reaves W H & Co. Inc.+59,66959,669new13F
Analyst IMS Investment Management Services Ltd.+56,40068,194added13F
KBC Group NV-53,13325,247trimmed13F
J. Safra Sarasin Holding AG+48,03174,722added13F
Temasek Holdings (Private) Ltd+43,44756,711added13F
Russell Investments Group, Ltd.-41,189133,813trimmed13F
Bank of New York Mellon Corp-39,591785,889trimmed13F
LPL Financial LLC-38,783125,675trimmed13F
DDD Partners, LLC+38,56839,242added13F
M & L Capital Management Ltd+37,650100,580added13F
Private Advisory Group LLC+34,87135,627added13F
Ofi Invest Asset Management+39,42340,921added13F
Vestor Capital, LLC-13,9941,099trimmed13F
Sumitomo Mitsui Trust Group, Inc.-30,103327,337trimmed13F

The largest moves in the name among the funds that have filed, against each fund's previous 13F.

The well-known funds

Of the 44 funds followed here, 1 reported a position in Ciena Corp. in a 13F for the quarter ended 30 September 2026, and 11 more in a 13F for an earlier quarter, the latest each has filed. The largest: FMR LLC, 19.1 million shares worth $9.38 billion, 0.4% of its reported book (its 13F for the quarter ended 30 June 2026). Sold out: Lone Pine Capital, Whale Rock Capital Management.

FundSharesValueOf its bookChange on the quarterStatusQuarter endedFiling
FMR LLC19,113,538$9.38 billion0.4%-2,096,218trimmed30 June 2026, an earlier quarter13F
Geode Capital Management3,370,470$1.18 billion0.1%+8held30 September 202613F
Norges Bank1,703,155$835.5 million0.1%held30 June 2026, an earlier quarter13F
Atreides Management688,521$337.8 million3.0%+11,714added30 June 2026, an earlier quarter13F
Capital Research Global Investors656,554$322.1 million0.0%-2,093,496trimmed30 June 2026, an earlier quarter13F
Alyeska220,966$108.4 million0.3%+220,966new30 June 2026, an earlier quarter13F
Citadel Advisors214,064$105.0 million0.1%+73,629added30 June 2026, an earlier quarter13F
Point72 Asset Management210,516$103.3 million0.2%-334,139trimmed30 June 2026, an earlier quarter13F
Renaissance Technologies184,774$90.6 million0.1%+86,974added30 June 2026, an earlier quarter13F
Millennium Management166,420$81.6 million0.1%+75,704added30 June 2026, an earlier quarter13F
Bridgewater Associates101,038$49.6 million0.2%-42,808trimmed30 June 2026, an earlier quarter13F
Two Sigma Investments9,500$4.7 million0.0%+6,014added30 June 2026, an earlier quarter13F
Lone Pine Capital0$00.0%-809,522exited30 June 2026, an earlier quarter13F
Whale Rock Capital Management0$00.0%-231,267exited30 June 2026, an earlier quarter13F
Value is what the fund reported.
Read moreChange is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.

The largest holders

FundSharesShare of allValueOf its bookChange in sharesFiling
FMR LLC19,113,53814.44%$9.38 billion0.41%-2,096,21813F
BlackRock, Inc.12,718,4949.61%$6.24 billion0.09%-655,29313F
JPMorgan Chase & Co.11,206,2098.46%$5.37 billion0.31%+979,56013F
Vanguard Capital Management LLC9,233,8036.97%$4.53 billion0.10%+64,44813F
Vanguard Portfolio Management LLC7,680,6655.80%$3.77 billion0.17%+311,54113F
State Street Corp.6,680,5785.05%$3.28 billion0.10%+371,52813F
Price T Rowe Associates Inc.4,071,4013.08%$2.00 billion0.20%-1,171,40113F
Geode Capital Management, LLC3,370,4622.55%$1.65 billion0.09%-695,09713F
American Century Companies Inc.1,851,7881.40%$908.4 million0.40%+1,315,94613F
Bank of America Corp.1,788,5821.35%$877.4 million0.06%-166,05013F
Capital World Investors1,755,6021.33%$861.2 million0.10%+30,79513F
Invesco Ltd.1,730,2101.31%$848.8 million0.07%+199,91713F
Norges Bank1,703,1551.29%$835.5 million0.08%13F
Arrowstreet Capital, Limited Partnership1,677,0291.27%$822.7 million0.36%+288,55213F
Morgan Stanley1,634,6301.23%$801.9 million0.04%+73,07613F
Nuveen, LLC1,391,4291.05%$682.6 million0.16%+547,23613F
Charles Schwab Investment Management Inc.1,248,9950.94%$612.7 million0.08%-23,26313F
Northern Trust Corp.1,217,9390.92%$597.5 million0.07%+30,64813F
Dimensional Fund Advisors LP1,153,2290.87%$565.6 million0.10%+7,20913F
UBS AM, a distinct business unit of UBS Asset Management Americas LLC1,145,4800.87%$561.9 million0.10%+293,54813F
BNP Paribas Asset Management Holding S.A.1,105,3830.83%$542.1 million0.55%+83,79713F
AQR Capital Management LLC1,052,1650.79%$507.2 million0.18%+75,07113F
Goldman Sachs Group Inc.946,6110.72%$464.4 million0.05%+173,35313F
Legal & General Group Plc887,0540.67%$435.2 million0.09%+238,67113F
Bank of New York Mellon Corp825,4800.62%$404.9 million0.07%-101,37813F
Vanguard Fiduciary Trust Co.812,3450.61%$398.5 million0.09%+18,94713F
Voya Investment Management LLC731,6140.55%$358.9 million0.34%-473,48513F
Atreides Management, LP688,5210.52%$337.8 million3.03%+11,71413F
Amundi675,1050.51%$331.2 million0.08%+243,87313F
Capital Research Global Investors656,5540.50%$322.1 million0.04%-2,093,49613F
Massachusetts Financial Services Co.641,0200.48%$314.4 million0.10%+58,35213F
Deutsche Bank AG575,0410.43%$282.1 million0.08%+47,15313F
Jericho Capital Asset Management L.P.561,5130.42%$275.5 million2.28%-1,094,65913F
SG Americas Securities, LLC470,0460.36%$230.6 million0.13%+279,09713F
Assenagon Asset Management S.A.428,0040.32%$210.0 million0.14%13F
Wells Fargo & Company422,6550.32%$207.3 million0.04%+70,21013F
Pictet Asset Management Holding SA414,6980.31%$203.3 million0.19%+354,86413F
Swiss National Bank398,8120.30%$195.6 million0.10%-14,52013F
First Trust Advisors LP396,5310.30%$194.5 million0.11%-40,41413F
Ameriprise Financial Inc.391,3260.30%$192.0 million0.04%+204,41113F
Balyasny Asset Management L.P.372,4490.28%$182.7 million0.34%+49,03013F
UBS Group AG362,2970.27%$177.7 million0.03%-285,91213F
Sumitomo Mitsui Trust Group, Inc.357,4400.27%$175.3 million0.10%+35,61513F
Acadian Asset Management LLC354,8460.27%$174.0 million0.21%+24,72513F
Wealth Enhancement Advisory Services, LLC379,9770.29%$170.1 million0.29%+89,85413F
Mitsubishi UFJ Asset Management Co., Ltd.342,9950.26%$168.3 million0.09%+25,85813F
Allianz Asset Management GmbH338,5850.26%$166.1 million0.15%+49,19913F
Man Group plc334,8050.25%$164.2 million0.30%+311,41813F
Royal Bank of Canada332,6010.25%$163.2 million0.03%+69,05913F
BNP Paribas Financial Markets329,4880.25%$161.6 million0.09%-94,29513F
The 50 largest of the 1,229 funds that reported a position in CIEN in their 13F for the quarter ended 30 June 2026, by the value each reported.
Read moreShare of all is the fund's part of all the shares the funds reported. Change is shares against the fund's 13F for the quarter before. A 13F lists a manager's long positions in US-listed shares at the quarter's end. What is a 13F?

Options the funds reported on CIEN

FundOptionShares under the optionsValue of those sharesQuarter endedFiling
Citadel AdvisorsCalls634,900$311.5 million30 June 202613F
Citadel AdvisorsPuts479,600$235.3 million30 June 202613F
Point72 Asset ManagementCalls84,400$41.4 million30 June 202613F
Point72 Asset ManagementPuts81,000$39.7 million30 June 202613F
Millennium ManagementPuts43,100$21.1 million30 June 202613F
Millennium ManagementCalls23,600$11.6 million30 June 202613F
Two Sigma InvestmentsPuts8,500$4.2 million30 June 202613F
Two Sigma InvestmentsCalls6,100$3.0 million30 June 202613F
A 13F lists calls and puts by the shares they cover and what those shares were worth at the quarter's end, not what the options cost.
Read moreThey are not counted in the holdings above. A put gains when the stock falls, a call when it rises, and a fund may hold either to hedge.

Schedule 13D and 13G filed on the name, last twelve months

FiledScheduleWhoHoldingOf the classEvent dateRule or purposeFiling
3 September 202613G/AJpmorgan Chase & Co. and 1 other5.6 million3.9%31 August 2026passive, institutional (13d-1(b))EDGAR
6 August 202613G/AFMR LLC and 3 others19.1 million13.5%30 June 2026passive, institutional (13d-1(b))EDGAR
29 April 202613GVanguard Portfolio Management and 1 other7.4 million5.2%31 March 2026passive, institutional (13d-1(b))EDGAR
29 April 202613GVanguard Capital Management and 1 other10.6 million7.5%31 March 2026passive, institutional (13d-1(b))EDGAR
24 April 202613G/ABlackRock, Inc. and 1 other11.3 million8.0%31 March 2026passive, institutional (13d-1(b))EDGAR
26 March 202613G/AThe Vanguard Group and 1 other00.0%13 March 2026passive, institutional (13d-1(b))EDGAR
21 January 202613GJpmorgan Chase & Co. and 1 other10.9 million7.7%31 December 2025passive, institutional (13d-1(b))EDGAR
4 December 202513G/ABlackRock, Inc. and 1 other14.5 million10.3%30 November 2025passive, institutional (13d-1(b))EDGAR
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
Read moreAmendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short. 13D and 13G

Fails to deliver

Settlement dateShares failedPriceFile
21 August 2026487$392.48SEC
10 August 20264$412.39SEC
7 August 20262,070$403.76SEC
6 August 202675$408.83SEC
3 August 20261,200$377.05SEC
21 July 2026418$378.77SEC
17 July 20261,486$388.81SEC
16 July 202659$418.46SEC
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.
Read moreLargest in the window: 2,070 on 7 August 2026. A fail is an operational fact about settlement, not a position.