STOCK TITAN

Ciena (CIEN) strategy chief has 2,350 shares withheld for RSU taxes

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

Rhea-AI Filing Summary

Ciena Corporation SVP and Chief Strategy Officer David M. Rothenstein reported routine tax-related share withholdings. On June 20, 2026, a total of 2,350 shares of Ciena common stock were withheld at $428.22 per share to cover tax liabilities from previously granted restricted stock unit awards. After these transactions, he directly holds about 186,902 shares, which the filing notes include unvested restricted stock units and performance stock units.

Positive

  • None.

Negative

  • None.
Insider Rothenstein David M
Role SVP and Chief Strategy Officer
Type Security Shares Price Value
Tax Withholding Common Stock 679 $428.22 $291K
Tax Withholding Common Stock 204 $428.22 $87K
Tax Withholding Common Stock 811 $428.22 $347K
Tax Withholding Common Stock 436 $428.22 $187K
Tax Withholding Common Stock 220 $428.22 $94K
Holdings After Transaction: Common Stock — 186,902 shares (Direct, null)
Footnotes (1)
  1. Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/13/2022. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/15/2022. Shares reported include unvested Restricted Stock Units (RSUs) and Performance Stock Units (PSUs). Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/12/2023. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/14/2023. Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/17/2024. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/19/2024. Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/16/2025. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/18/2025.
Tax-withheld shares 2,350 shares Shares withheld to cover RSU-related tax liabilities
Withholding price $428.22 per share Valuation used for tax-withholding share dispositions
Post-transaction holdings 186,902 shares Direct holdings after tax-withholding transactions, including unvested RSUs and PSUs
restricted stock unit (RSU) financial
"Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement"
A restricted stock unit (RSU) is a promise from a company to give an employee company shares (or cash equal to their value) at a future date if certain conditions are met, such as staying with the company or hitting performance targets. For investors, RSUs matter because when they convert into actual shares they increase the number of shares available and can create selling pressure as employees cash out—think of them as a future paycheck paid in company stock.
Performance Stock Units (PSUs) financial
"Shares reported include unvested Restricted Stock Units (RSUs) and Performance Stock Units (PSUs)."
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.
tax-withholding disposition financial
"transaction_action: "tax-withholding disposition" for code F transactions"
A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.
Form 4 regulatory
"Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/15/2022."
Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.
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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).
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*
Rothenstein David M

(Last)(First)(Middle)
C/O CIENA CORPORATION
7035 RIDGE RD.

(Street)
HANOVER MARYLAND 21076-1426

(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)
Director10% Owner
XOfficer (give title below)Other (specify below)
SVP and Chief Strategy Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/20/2026
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 Stock06/20/2026F679(1)D$428.22186,902(2)D
Common Stock06/20/2026F204(1)D$428.22186,698(2)D
Common Stock06/20/2026F811(3)D$428.22185,887(2)D
Common Stock06/20/2026F436(4)D$428.22185,451(2)D
Common Stock06/20/2026F220(5)D$428.22185,231(2)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. Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/13/2022. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/15/2022.
2. Shares reported include unvested Restricted Stock Units (RSUs) and Performance Stock Units (PSUs).
3. Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/12/2023. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/14/2023.
4. Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/17/2024. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/19/2024.
5. Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/16/2025. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/18/2025.
By: Michelle Rankin For: David M. Rothenstein06/22/2026
** 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)

FAQ

What did Ciena (CIEN) executive David M. Rothenstein report in this Form 4?

David M. Rothenstein reported that 2,350 Ciena common shares were withheld to cover tax liabilities from vesting restricted stock units. These are tax-withholding dispositions, not open-market sales, and relate to previously disclosed RSU awards granted in prior years.

How many Ciena (CIEN) shares were withheld for taxes in the latest filing?

A total of 2,350 Ciena common shares were withheld to pay tax liabilities tied to multiple restricted stock unit awards. The filing labels each transaction with code F, indicating payment of tax obligations by delivering securities rather than selling shares on the open market.

At what price were the withheld Ciena (CIEN) shares valued in this Form 4?

The withheld Ciena shares were valued at $428.22 per share for tax-withholding purposes. This price is used to determine the value of shares applied to the reporting person’s tax liabilities arising from vesting restricted stock unit awards previously granted under compensation agreements.

How many Ciena (CIEN) shares does David M. Rothenstein hold after the tax withholdings?

After the reported tax-withholding transactions, David M. Rothenstein directly holds approximately 186,902 Ciena shares. The filing notes that this figure includes unvested restricted stock units and performance stock units, so it reflects both vested and certain unvested equity-based compensation.

Are the Ciena (CIEN) Form 4 transactions open-market sales by the executive?

No, the transactions are not open-market sales. They are coded F and described as shares withheld to cover tax liabilities from restricted stock unit vesting. This means the company retained shares for taxes rather than the executive actively selling them in the market.