Ciena (CIEN)

NYSE Information Technology Communications Equipment S&P 500
$243.39
+12.58 (+5.45%)
Close of Nov 06, 2026 · end-of-day data

CIEN 8-K filings, explained

Every material Form 8-K Ciena has filed with the SEC since April 23, 2024, read and summarized by AI: what happened, the key figures, whether it reads positive or negative for shareholders, and how big a deal it is (impact 1-5). Newest first; each brief links to its own page and to the filing on SEC.gov.

Briefs on record15since Apr 23, 2024
Latest filingSep 03, 2026guidance
High impact (4-5)8of 15 briefs
TonePositive5Negative3Mixed2Neutral5
earnings 8leadership 3guidance 2financing 2
Sep 3, 7:07 AM ET

Ciena Q3 revenue rises 37% to $1.67 billion; raises fiscal 2026 revenue outlook

Positive guidance Written later 2.02

Ciena reported fiscal third quarter 2026 revenue of $1.67 billion, up 37% from a year earlier, with GAAP diluted EPS of $1.83 versus $0.35 and adjusted EPS of $2.11 versus $0.67. The company raised its fiscal 2026 revenue guidance to $6.42 billion plus or minus $50 million, which points to continued sales growth for shareholders.

  • Q3 fiscal 2026 revenue was $1.67 billion, compared with $1.22 billion in Q3 fiscal 2025
  • GAAP diluted EPS was $1.83 and adjusted EPS was $2.11, compared with $0.35 and $0.67 a year earlier
  • Fiscal Q4 2026 revenue guidance is $1.75 billion plus or minus $50 million
  • Fiscal 2026 revenue guidance was raised to $6.42 billion plus or minus $50 million, a 35% increase at the midpoint
Read the filing on SEC.gov ↗
Jun 11, 4:21 PM ET

Ciena closes $2.875 billion convertible notes offering maturing in 2031

Neutral financing Written later 1.012.033.028.01

Ciena Corporation closed on June 11, 2026 a private offering of $2.875 billion of 0.00% convertible senior notes due September 15, 2031, including $375.0 million issued under the initial purchasers' option. The company used about $1.14 billion of the net proceeds to repay its existing senior secured term loan and about $140.0 million to repurchase roughly 0.3 million shares of its common stock, with the remainder for general corporate purposes including supply chain capacity. The notes carry an initial conversion price of about $746.66 per share, and related hedge and warrant transactions could affect the number of shares and the dilution shareholders face.

  • Gross proceeds of $2.875 billion and net proceeds of approximately $2.72 billion before offering expenses
  • Notes mature September 15, 2031, carry no regular interest, and have an initial conversion price of about $746.66 per share
  • About $1.14 billion of net proceeds used to repay the existing term loan; about $140.0 million used to repurchase about 0.3 million shares at $466.67 per share
  • Company may not redeem the notes before September 20, 2029, except in a cleanup redemption
Read the filing on SEC.gov ↗
Jun 4, 7:05 AM ET

Ciena Q2 revenue rises 40% to $1.57 billion; full-year revenue outlook raised to $6.3 billion

Positive earnings Written later 2.02

Ciena reported fiscal second quarter 2026 revenue of $1.57 billion, up 39.5% from a year earlier, and adjusted diluted EPS of $1.64 versus $0.42. The company raised its fiscal 2026 revenue guidance to $6.3 billion plus or minus $100 million and forecast fiscal third quarter revenue of $1.625 billion plus or minus $50 million, so the results and outlook both point higher for shareholders.

  • Q2 fiscal 2026 revenue was $1.57 billion, compared with $1.13 billion in Q2 fiscal 2025.
  • GAAP diluted EPS was $1.49 versus $0.06 a year earlier; adjusted diluted EPS was $1.64 versus $0.42.
  • Fiscal 2026 revenue guidance raised to $6.3 billion plus or minus $100 million; fiscal Q3 revenue guidance is $1.625 billion plus or minus $50 million.
  • Ciena repurchased about 0.2 million shares for $83.1 million under its $1 billion repurchase program during the quarter.
Read the filing on SEC.gov ↗
Mar 5, 7:49 AM ET

Ciena raises fiscal 2026 revenue guidance as Q1 revenue rises 33% to $1.43 billion

Positive guidance Written later 2.02

Ciena reported fiscal first quarter 2026 revenue of $1.43 billion, up 33.1% from a year earlier, with GAAP diluted EPS of $1.03 versus $0.31 and adjusted EPS of $1.35 versus $0.64. The company raised its fiscal 2026 revenue outlook to $5.9 billion to $6.3 billion and expects fiscal second quarter revenue of $1.5 billion plus or minus $50 million, which signals higher expected sales for shareholders.

  • Q1 fiscal 2026 revenue was $1.43 billion, up 33.1% from $1.07 billion in Q1 fiscal 2025
  • GAAP diluted EPS was $1.03 and adjusted EPS was $1.35, compared with $0.31 and $0.64 a year earlier
  • Fiscal 2026 revenue outlook raised to $5.9 billion to $6.3 billion; Q2 revenue expected at $1.5 billion plus or minus $50 million
  • Repurchased about 0.4 million shares for $80.5 million under the $1 billion share repurchase program
Read the filing on SEC.gov ↗
Dec 11, 7:07 AM ET

Ciena Q4 revenue rises 20% to $1.35 billion; GAAP EPS falls to $0.13

Mixed earnings Written later 2.02

Ciena reported fiscal fourth quarter 2025 revenue of $1.35 billion, up 20% from a year earlier, and adjusted diluted EPS of $0.91 versus $0.54. GAAP diluted EPS fell to $0.13 from $0.25, reflecting $106.9 million in significant asset impairments and restructuring costs in the quarter. The company guided fiscal 2026 revenue to $5.7 billion to $6.1 billion, and fiscal first quarter 2026 revenue to $1.35 billion to $1.43 billion.

  • Q4 fiscal 2025 revenue was $1.35 billion, compared with $1.12 billion a year earlier.
  • GAAP diluted EPS was $0.13 versus $0.25; adjusted (non-GAAP) diluted EPS was $0.91 versus $0.54.
  • Significant asset impairments and restructuring costs were $106.9 million in the quarter, versus $2.6 million a year earlier.
  • Fiscal 2026 revenue guidance is $5.7 billion to $6.1 billion; fiscal Q1 2026 revenue guidance is $1.35 billion to $1.43 billion.
Read the filing on SEC.gov ↗
Dec 3, 5:34 PM ET

Ciena renews executive change-in-control severance agreements through November 2028

Neutral leadership Written later 5.02

Ciena renewed change in control severance agreements with its executive officers effective November 30, 2025, as part of a routine three-year review after the prior agreements expired that day. The company says the severance benefits are unchanged, with the main revisions being clarifications on clawback rights and equity treatment under Section 409A.

  • New agreements run through November 30, 2028, unless terminated earlier
  • Severance benefits are unchanged; CEO Gary B. Smith's protection period is 18 months after a change in control, versus 12 months for other officers
  • Changes include clarifying that the agreements do not limit the Executive Compensation Clawback Policy and language on Section 409A equity treatment
Read the filing on SEC.gov ↗
Sep 4, 7:02 AM ET

Ciena Q3 revenue rises 29% to $1.22 billion; GAAP EPS $0.35 vs $0.10 a year earlier

Positive earnings Written later 2.02

Ciena reported fiscal third-quarter 2025 results for the quarter ended August 2, 2025, with revenue up 29.4% from a year earlier and GAAP net income more than tripling to $50.3 million. The company also gave fiscal fourth-quarter 2025 revenue and adjusted expense ranges, and repurchased about 1.0 million shares for $81.8 million during the quarter.

  • Q3 revenue of $1.22 billion vs. $942.3 million in Q3 fiscal 2024; GAAP gross margin 41.3% vs. 42.9%
  • GAAP diluted EPS $0.35 vs. $0.10; adjusted (non-GAAP) diluted EPS $0.67 vs. $0.35
  • Q4 fiscal 2025 outlook: revenue $1.24 billion to $1.32 billion; adjusted gross margin 42% to 43%; adjusted operating expense $390 million to $400 million
  • Share repurchases of about 1.0 million shares for $81.8 million in the quarter
Read the filing on SEC.gov ↗
Jun 18, 4:04 PM ET

Ciena names Marc D. Graff as CFO effective August 1, 2025

Neutral leadership Written later 5.027.01

Ciena Corporation appointed Marc D. Graff as Senior Vice President and Chief Financial Officer, effective August 1, 2025, and designated him principal financial and principal accounting officer. He succeeds James E. Moylan, Jr., who previously announced his retirement effective August 28, 2025, and will assist with the transition until then.

  • Graff's offer letter, dated June 13, 2025, sets a base salary of $650,000 and a target annual cash bonus of 100% of base salary.
  • Graff receives a one-time cash sign-on bonus of $1,950,000, subject to repayment if he resigns or is terminated for cause before the first anniversary of his start date.
  • A one-time replacement RSU grant has a target delivered value of $10,486,000, with one-quarter vesting on the first anniversary of the Effective Date.
  • Graff's prior role was Senior Vice President and CFO at Altera Corporation, which he held from January 2024; he previously served at Intel Corporation.
Read the filing on SEC.gov ↗
Jun 5, 7:05 AM ET

Ciena Q2 revenue rises 23.6% to $1.13 billion; GAAP EPS $0.06 vs. loss a year ago

Positive earnings Written later 2.02

Ciena reported unaudited results for its fiscal second quarter ended May 3, 2025, with revenue of $1.13 billion, up from $910.8 million a year earlier. GAAP net income was $9.0 million, or $0.06 per diluted share, compared with a GAAP net loss of $16.8 million, or $0.12 per share, in the prior-year quarter. The company also repurchased about 1.2 million shares for $84.3 million during the quarter.

  • Revenue of $1.13 billion, up 23.6% from $910.8 million in the fiscal second quarter of 2024
  • GAAP net income of $9.0 million, or $0.06 per diluted share; adjusted (non-GAAP) EPS of $0.42 vs. $0.27 a year earlier
  • GAAP gross margin fell to 40.2% from 42.7%; GAAP operating margin improved to 2.9% from (0.4)%
  • Share repurchases of about 1.2 million shares for $84.3 million during the quarter
Read the filing on SEC.gov ↗
Mar 11, 7:27 AM ET

Ciena Q1 revenue rises 3.3% to $1.07 billion; GAAP profit falls to $44.6 million

Mixed earnings Written later 2.02

Ciena reported fiscal first quarter 2025 revenue of $1.07 billion, up from $1.04 billion a year earlier, but GAAP net income fell to $44.6 million, or $0.31 per diluted share, from $49.5 million, or $0.34. Adjusted (non-GAAP) earnings were $0.64 per share versus $0.66, and the company repurchased about 1.0 million shares for $79.2 million during the quarter. The filing does not include new guidance; management said it is very confident in its ability to deliver in fiscal year 2025 and beyond.

  • Revenue of $1.07 billion, up 3.3% from $1.04 billion in the prior-year quarter
  • GAAP diluted EPS of $0.31 vs. $0.34; adjusted diluted EPS of $0.64 vs. $0.66
  • Adjusted operating margin of 12.3% vs. 13.2%; operating cash flow of $103.7 million
  • Repurchased about 1.0 million shares for $79.2 million during the quarter
Read the filing on SEC.gov ↗
Jan 21, 4:43 PM ET

Ciena refinances $1.16 billion term loan, extends maturity to October 2030

Neutral financing Written later 1.012.03

Ciena replaced its existing $1.16 billion senior secured term loan with a new $1.16 billion term loan dated January 17, 2025, using the proceeds and cash on hand to repay the old loan in full. The new loan matures October 24, 2030, and carries a SOFR-based interest rate with a 1.75% margin, so the principal amount is unchanged while the repayment schedule and pricing terms are reset.

  • New single tranche senior secured term loan of approximately $1.16 billion, dated January 17, 2025
  • Matures October 24, 2030; amortizes about 0.25% of principal per quarter with the balance due at maturity
  • Interest at SOFR (0.00% floor) plus 1.75%, or base rate (1.00% floor) plus 0.75%
  • Prepayment premium of 1% applies to repayments funded by certain debt prior to July 17, 2025
Read the filing on SEC.gov ↗
Dec 12, 7:05 AM ET

Ciena Q4 revenue slips to $1.12 billion; Executive Chair Nettles to retire

Negative earnings Written later 2.025.025.037.01

Ciena reported fiscal fourth-quarter 2024 revenue of $1.12 billion, down from $1.13 billion a year earlier, and GAAP diluted earnings of $0.25 per share, down from $0.62. Dr. Patrick Nettles stepped down as Executive Chair and will leave the Board after the 2025 Annual Meeting, with Lawton W. Fitt named independent Chair, which changes board leadership for shareholders.

  • Q4 revenue was $1.12 billion versus $1.13 billion in the prior-year quarter; full-year revenue was $4.01 billion versus $4.39 billion.
  • GAAP diluted EPS was $0.25 versus $0.62; adjusted (non-GAAP) diluted EPS was $0.54 versus $0.75.
  • Dr. Patrick H. Nettles stepped down as Executive Chair effective December 11, 2024, and will not stand for re-election at the 2025 Annual Meeting.
  • Lawton W. Fitt was appointed independent Chair; the Board will shrink from ten to nine directors after Nettles leaves.
Read the filing on SEC.gov ↗
Sep 4, 7:05 AM ET

Ciena Q3 revenue falls 11.8% to $942.3 million; CFO James Moylan to retire

Negative earnings Written later 2.025.02

Ciena reported fiscal third-quarter 2024 revenue of $942.3 million, down 11.8% from $1.07 billion a year earlier, with GAAP net income of $14.2 million ($0.10 per diluted share) versus $29.7 million ($0.20) in the prior-year quarter. The company also said Chief Financial Officer James E. Moylan, Jr. will retire effective August 28, 2025, and that a search for his successor has begun.

  • Q3 revenue $942.3 million vs. $1.07 billion in Q3 2023; Optical Networking revenue was $606.8 million vs. $719.0 million
  • GAAP diluted EPS $0.10 vs. $0.20 a year earlier; adjusted (non-GAAP) EPS $0.35 vs. $0.59
  • CFO James E. Moylan, Jr. (age 73) to retire effective August 28, 2025, after more than 16 years in the role; he will stay until a successor is in place
  • Company repurchased about 0.6 million shares for $29.0 million in the quarter
Read the filing on SEC.gov ↗
Jun 6, 7:03 AM ET

Ciena Q2 revenue falls 19.6% to $910.8 million; posts GAAP net loss

Negative earnings Written later 2.02

Ciena reported fiscal second quarter 2024 revenue of $910.8 million, down 19.6% from $1.13 billion a year earlier. The company posted a GAAP net loss of $16.8 million, or $0.12 per diluted share, compared with GAAP net income of $57.7 million, or $0.38 per share, a year earlier. Both revenue and profit declined sharply, which weighs on shareholders.

  • Q2 revenue $910.8 million versus $1.13 billion in Q2 2023, down 19.6%
  • GAAP net loss of $16.8 million ($0.12 per diluted share) versus GAAP net income of $57.7 million ($0.38) a year earlier
  • Adjusted (non-GAAP) EPS of $0.27 versus $0.74; adjusted EBITDA of $85.8 million versus $180.6 million
  • Repurchased about 1.1 million shares for $57.0 million during the quarter
Read the filing on SEC.gov ↗
Apr 23, 4:19 PM ET

Ciena: Principal Accounting Officer Andrew Petrik to retire effective April 25, 2025

Neutral leadership Written later 5.02

Ciena said its Vice President, Principal Accounting Officer and Controller, Andrew C. Petrik, will retire effective April 25, 2025, about twelve months after notifying the company on April 22, 2024. He will remain in his role until then and help transition his duties to a successor.

  • Andrew C. Petrik, age 60, is Vice President, Principal Accounting Officer and Controller.
  • Retirement effective April 25, 2025; he notified the company on April 22, 2024.
  • He will continue in his role through the effective date and assist in transitioning responsibilities to a successor.
  • He has served Ciena since 1996.
Read the filing on SEC.gov ↗

Briefs are written by AI from the filing text (each brief's own page names the model) and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the model's reading of the filing for shareholders, not a price forecast. Not investment advice.

Only material 8-Ks get a brief: results, deals, executive changes, restructuring, impairments, delisting notices, restatements, cybersecurity incidents and other disclosed events. Routine filings (vote results, exhibits only) are skipped. Every Ciena filing is on SEC EDGAR ↗. 8-K briefs of other companies →