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Ciena (NYSE: CIEN) CEO stock sale leaves 246K shares held

Filing Impact
(Very High)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

CIENA CORP (CIEN) reported that President and CEO Gary B. Smith sold 2,952 shares of common stock on 2026-08-17 in an open-market transaction. The sale was made pursuant to a Rule 10b5-1 trading plan dated 10/04/2025 at a weighted average price of $447.7779 per share, with actual prices ranging from $429.9900 to $457.8650. Following this transaction, Smith directly holds 246,030 shares, which include unvested Restricted Stock Units (RSUs) and Performance Stock Units (PSUs).

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Insider SMITH GARY B
Role President, CEO
Sold 2,952 shs ($1.32M)
Type Security Shares Price Value
Sale Common Stock F1, F2, F3 2,952 $447.7779 $1.32M
Holdings After Transaction: Common Stock — 246,030 shares (Direct)
Footnotes (3)
  1. F1. Sales were affected pursuant to Rule 10b5-1 trading plan dated 10/04/2025.
  2. F2. Reflects the weighted average sales price with transactions in a range of sales from $429.9900 to $457.8650. Upon request by the SEC, full information regarding the number of shares sold at each separate sales price will be provided.
  3. F3. Shares reported include unvested Restricted Stock Units (RSUs) and Performance Stock Units (PSUs).
Shares Sold 2,952 shares Non-derivative sale of CIEN common stock by CEO on 2026-08-17
Weighted Average Sale Price $447.7779 per share Average price for the reported sale transaction
Sale Price Range Low $429.9900 per share Lowest price in the sale range for this transaction
Sale Price Range High $457.8650 per share Highest price in the sale range for this transaction
Shares Held After Transaction 246,030 shares Direct ownership after sale, including unvested RSUs and PSUs
10b5-1 Plan Date 10/04/2025 Date of Rule 10b5-1 trading plan governing this sale
Rule 10b5-1 trading plan regulatory
"Sales were affected pursuant to Rule 10b5-1 trading plan dated 10/04/2025."
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
Restricted Stock Units (RSUs) financial
"Shares reported include unvested Restricted Stock Units (RSUs) and Performance Stock Units"
Restricted stock units (RSUs) are a type of company promise to give employees shares of stock in the future, usually after certain conditions like working for a set time. They are like a gift promised today that you receive later, which can become valuable if the company's stock price goes up. RSUs matter because they are a way companies reward employees and can be a significant part of compensation.
Performance Stock Units (PSUs) financial
"Shares reported include unvested Restricted Stock Units (RSUs) and Performance Stock Units"
Performance stock units (PSUs) are a form of executive or employee pay that promise company shares only if pre-set performance goals are met over a defined period; think of them as a bonus paid in stock that arrives only when the company hits agreed targets. Investors watch PSUs because they affect the number of shares outstanding (dilution) and reveal how management’s pay is tied to financial or operational results, aligning incentives with shareholder outcomes.
weighted average sales price financial
"Reflects the weighted average sales price with transactions in a range of sales"

FAQ

What insider transaction did CIEN CEO Gary B. Smith report in this Form 4?
Gary B. Smith reported selling 2,952 CIEN common shares on 2026-08-17. The open-market sale occurred under a Rule 10b5-1 trading plan, with a weighted average price of $447.7779 per share over a defined price range.

At what prices were the CIEN shares sold in Gary B. Smith’s August 2026 transaction?
The CIEN shares were sold at a weighted average price of $447.7779 per share. Individual trades occurred in a range of $429.9900 to $457.8650, and full trade-by-trade details are available upon request by the SEC.

How many CIEN shares does Gary B. Smith hold after this reported sale?
After the sale, Gary B. Smith directly holds 246,030 CIEN shares. This reported total includes unvested Restricted Stock Units (RSUs) and Performance Stock Units (PSUs), reflecting both vested and certain unvested equity awards.

Was the August 2026 CIEN stock sale by Gary B. Smith under a Rule 10b5-1 plan?
Yes. The filing states the sales were effected under a Rule 10b5-1 trading plan dated 10/04/2025. Such pre-arranged plans allow insiders to schedule trades in advance, helping separate trading decisions from later material nonpublic information.

What type of security did Gary B. Smith sell in this CIEN Form 4 filing?
Gary B. Smith sold CIEN common stock in this transaction. The Form 4 lists one non-derivative transaction involving common shares, executed as an open-market sale, with post-transaction direct ownership of 246,030 shares including certain unvested equity units.

Does Gary B. Smith’s reported CIEN share balance include RSUs and PSUs?
Yes. The filing notes that the 246,030 shares reported after the transaction include unvested RSUs and PSUs. This means his disclosed ownership combines standard common shares with specified unvested equity awards.

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Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
X
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
SMITH GARY B
(Last)(First)(Middle)
C/O CIENA CORPORATION
8150 MAPLE LAWN BOULEVARD, SUITE 300
(Street)
FULTON MARYLAND 20759
(City)(State)(Zip)
UNITED STATES
(Country)		2. Issuer Name and Ticker or Trading Symbol
CIENA CORP [ CIEN ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
President, CEO
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
08/17/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock08/17/2026S2,952(1)D$447.7779(2)246,030(3)D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. Sales were affected pursuant to Rule 10b5-1 trading plan dated 10/04/2025.
2. Reflects the weighted average sales price with transactions in a range of sales from $429.9900 to $457.8650. Upon request by the SEC, full information regarding the number of shares sold at each separate sales price will be provided.
3. Shares reported include unvested Restricted Stock Units (RSUs) and Performance Stock Units (PSUs).
By: Michelle Rankin For: Gary B. Smith08/18/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR