Stocks › CIEN
CIENA CORP
CIEN·NYSE·
United States·USD
United States·USD$443.65
+53.96 (+13.85%)
Close · Oct 6, 2026 · Close Prices from Tiingo.com
CIEN
CIENA CORP · NYSE
Nasdaq 100S&P 500
Filings
Default90D1Y5YALL
CIENS&P 500 (rebased)
Congress BuyCongress SellInsider BuyInsider SellForm 1448-K ResultsLobbying
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Daily closes, adjusted for splits and dividends · Close Prices from Tiingo.comHover a marker, every one is a filing · move across the line for the crosshair
Congressional Trades
Recent trades of CIEN by members of U.S. Congress · 29 on record · 10 in the last 12 months
Whale Activity
Position changes in CIEN reported for 2026-06-30 by 22 tracked institutional filers
- Increased7
- New0
- Held0
- Decreased3
- Closed0
- No prior filing12
| Filer | Shares | Value | Change |
|---|---|---|---|
| FMR LLC | 19.1M | $9.38B | — |
| BlackRock, Inc. | 12.7M | $6.24B | decreased |
| VANGUARD CAPITAL MANAGEMENT LLC | 9.2M | $4.53B | increased |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 7.7M | $3.77B | increased |
| AMERICAN CENTURY COMPANIES INC | 1.9M | $908.4M | — |
| CITADEL ADVISORS LLC | 214.1K | $105.0M | increased |
| Point72 Asset Management, L.P. | 210.5K | $103.3M | decreased |
| RENAISSANCE TECHNOLOGIES LLC | 184.8K | $90.6M | increased |
| MILLENNIUM MANAGEMENT LLC | 166.4K | $81.6M | increased |
| D. E. Shaw & Co., Inc. | 133.2K | $65.3M | increased |
| Bridgewater Associates, LP | 101.0K | $49.6M | decreased |
| SCGE MANAGEMENT, L.P. | 89.0K | $43.7M | — |
KeyVex tracks a curated set of large 13F filers plus the largest positions in recent filings, so this is a sample of institutional activity, not the whole market.
Insider Trading
Net shares bought (+) or sold (−) on the open market by CIEN insiders, by quarter · Form 4
Recent Insider Transactions
5,541 transactions on record · newest first
| Insider | Type | Shares | Price | Value | Date | |
|---|---|---|---|---|---|---|
| Graff Marc D.EVP & Chief Financial Officer | Sale | −97 | $355.19 | $34K | Oct 1, 2026 | Form 4 ↗ |
| Kosaraju SheelaEVP & Chief Legal Officer | Sale | −2,101 | $355.19 | $746K | Oct 1, 2026 | Form 4 ↗ |
| Phipps JasonEVP & Chief Customer Officer | Sale | −2,629 | $355.19 | $934K | Oct 1, 2026 | Form 4 ↗ |
| Cumello JosephEVP & General Mgr. | Sale | −1,586 | $358.52 | $569K | Sep 25, 2026 | Form 4 ↗ |
| Claflin Bruce L.Director · Director | Sale | −2,857 | $355.91 | $1.0M | Sep 24, 2026 | Form 4 ↗ |
| NEVENS THOMAS MICHAELDirector · Director | Sale | −3,738 | $359.04 | $1.3M | Sep 23, 2026 | Form 4 ↗ |
| DiPerna DinoEVP & Chief R&D Officer | Sale | −249 | $350.00 | $87K | Sep 16, 2026 | Form 4 ↗ |
| Gage BrodieEVP & Chief Product & | Sale | −1,200 | $324.86 | $390K | Sep 15, 2026 | Form 4 ↗ |
| DiPerna DinoEVP & Chief R&D Officer | Sale | −249 | $324.86 | $81K | Sep 15, 2026 | Form 4 ↗ |
| Rothenstein David MEVP & Chief Strategy Officer | Sale | −2,500 | $330.48 | $826K | Sep 15, 2026 | Form 4 ↗ |
| SMITH GARY BPresident & CEO · Director | Sale | −2,952 | $330.18 | $975K | Sep 15, 2026 | Form 4 ↗ |
| SMITH GARY BPresident, CEO · Director | Sale | −2,952 | $362.90 | $1.1M | Sep 1, 2026 | Form 4 ↗ |
| Gage BrodieSVP Global Products & Supply | Sale | −1,200 | $439.24 | $527K | Aug 17, 2026 | Form 4 ↗ |
| SMITH GARY BPresident, CEO · Director | Sale | −2,952 | $447.78 | $1.3M | Aug 17, 2026 | Form 4 ↗ |
| Graff Marc D.SVP & Chief Financial Officer | Sale | −4,995 | $430.72 | $2.2M | Aug 14, 2026 | Form 4 ↗ |
| Rothenstein David MSVP and Chief Strategy Officer | Sale | −2,500 | $438.10 | $1.1M | Aug 14, 2026 | Form 4 ↗ |
| SMITH GARY BPresident, CEO · Director | Sale | −2,952 | $379.81 | $1.1M | Aug 3, 2026 | Form 4 ↗ |
| Gage BrodieSVP Global Products & Supply | Sale | −1,200 | $449.15 | $539K | Jul 15, 2026 | Form 4 ↗ |
| DiPerna DinoSVP Global R&D | Sale | −391 | $449.15 | $176K | Jul 15, 2026 | Form 4 ↗ |
| DiPerna DinoSVP Global R&D | Sale | −391 | $449.15 | $176K | Jul 15, 2026 | Form 4 ↗ |
Fund Holders
Mutual funds and ETFs holding CIEN · SEC Form N-PORT
| Fund | Shares | Value | % of fund | As of |
|---|---|---|---|---|
| Fidelity Growth Company Fund Fidelity Mt. Vernon Street Trust | 6.4M | $3.71B | 3.76% | May 31, 2026 |
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 4.5M | $2.20B | 0.10% | Jun 30, 2026 |
| JPMorgan Large Cap Growth Fund JPMorgan Trust II | 4.3M | $2.11B | 1.73% | Jun 30, 2026 |
| VANGUARD 500 INDEX FUND VANGUARD INDEX FUNDS | 3.7M | $1.80B | 0.11% | Jun 30, 2026 |
| VANGUARD MID-CAP INDEX FUND VANGUARD INDEX FUNDS | 3.1M | $1.50B | 0.67% | Jun 30, 2026 |
| Fidelity 500 Index Fund Fidelity Concord Street Trust | 1.8M | $1.05B | 0.13% | May 31, 2026 |
| Fidelity Growth Company K6 Fund Fidelity Mt. Vernon Street Trust | 1.8M | $1.03B | 3.75% | May 31, 2026 |
| iShares Core S&P 500 ETF iShares Trust | 1.9M | $953.9M | 0.11% | Jun 30, 2026 |
| Fidelity Series Growth Company Fund Fidelity Mt. Vernon Street Trust | 1.5M | $872.4M | 3.57% | May 31, 2026 |
| State Street(R) SPDR(R) S&P 500(R) ETF Trust | 1.7M | $838.7M | 0.11% | Jun 30, 2026 |
Mutual funds and ETFs whose N-PORT filings list CIEN's shares (CUSIP 171779309), each fund at its latest report since Mar 7, 2026, largest positions first. Bonds, options and short positions are left out.
Activist & Passive Stakes
Schedule 13D / 13G beneficial-ownership filings
- JPMORGAN CHASE & CO.SCHEDULE 13G/A · passive (13G) · 5.6M shares3.9%
Sep 3, 2026 · ↗ - Abigail P. JohnsonSCHEDULE 13G/A · passive (13G) · 19.1M shares13.5%
Aug 6, 2026 · ↗ - FMR LLCSCHEDULE 13G/A · passive (13G) · 19.1M shares13.5%
Aug 6, 2026 · ↗ - JPMORGAN CHASE & CO.SCHEDULE 13G · passive (13G) · 10.9M shares7.7%
Jan 21, 2026 · ↗
Corporate Lobbying
Estimated quarterly lobbying spending reported under the LDA, filings naming ciena as client
- VALCOUR LLCCIENA GROUP · 2026 Q3 · FOR—
Filing ↗ - AKIN GUMP STRAUSS HAUER & FELDCIENA CORPORATION · 2026 Q2 · TRD$80K
Filing ↗ - CIENA CORPORATION (FORMERLY CIENA CORPORATION, BROADBAND GROUP)CIENA CORPORATION (FORMERLY CIENA CORPORATION, BROADBAND GROUP) · 2026 Q2 · TEC, TRD, HOM, FOR$290K
Filing ↗ - CIENA CORPORATION (FORMERLY CIENA CORPORATION, BROADBAND GROUP)CIENA CORPORATION (FORMERLY CIENA CORPORATION, BROADBAND GROUP) · 2026 Q1 · TEC, TRD, HOM$420K
Filing ↗ - AKIN GUMP STRAUSS HAUER & FELDCIENA CORPORATION · 2026 Q1 · TRD$80K
Filing ↗
Government Contracts
Federal awards to CIENA CORP · USAspending
No federal contract awards found for CIENA CORP.
U.S. Patents
Recent USPTO applications naming CIENA CORP
No USPTO patent applications found for CIENA CORP.
Annual Financials
From CIEN's 10-K filings · XBRL
No annual XBRL figures on record for CIEN. KeyVex's fundamentals cover about 130 large companies so far.
Stock Splits
Every split and reverse split in the price history
- 1-for-7Reverse splitSep 25, 2006
- 2-for-1Stock splitSep 19, 2000
Split dates and ratios from the price history · Close Prices from Tiingo.com
Material Events (8-K)
Corporate events filed with the SEC
- 8-K · Items 2.02, 9.01Results of operationsSep 3, 2026
EDGAR ↗ - 8-K · Items 1.01, 2.03, 3.02, 8.01, 9.01Material agreement · Direct financial obligation · Unregistered sale of equityJun 11, 2026
EDGAR ↗ - 8-K · Items 8.01, 9.01Other eventsJun 8, 2026
EDGAR ↗ - 8-K · Items 2.02, 9.01Results of operationsJun 4, 2026
EDGAR ↗
About CIENA CORP
From SEC EDGAR company records
Industry (SIC 3661)Telephone & Telegraph Apparatus
SectorTechnology
HeadquartersHANOVER, MD
IncorporatedMD
SEC CIK0000936395 ↗