STOCK TITAN

Director Carl Russo (NYSE: CALX) receives 4,967 Calix RSUs

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

Rhea-AI Filing Summary

Russo Carl reported acquisition or exercise transactions in this Form 4 filing.

CALIX, INC director Carl Russo reported an equity grant of 4,967 restricted stock units (RSUs), each convertible into one share of common stock. The RSUs were awarded under the company’s non-employee director equity compensation policy and will vest in full one day before the next annual stockholder meeting.

After this award, Russo’s direct holdings total 3,958,037 shares, which include the 4,967 unvested RSUs. The filing also lists 1,644,188 shares held by Equanimous Investments and 13,782 shares held by The Crescentico Trust, entities associated with Russo where he has roles but disclaims beneficial ownership beyond his pecuniary interest.

Positive

  • None.

Negative

  • None.
Insider Russo Carl
Role null
Type Security Shares Price Value
Grant/Award Common Stock 4,967 $0.00 --
holding Common Stock -- -- --
holding Common Stock -- -- --
Holdings After Transaction: Common Stock — 3,958,037 shares (Direct, null); Common Stock — 13,782 shares (Indirect, See Footnote)
Footnotes (1)
  1. Represents a grant of restricted stock units ("RSUs") awarded pursuant to the issuer's non-employee director equity compensation policy, that will vest in full one day prior to the issuer's next annual stockholder meeting. Each RSU represents a contingent right to receive one share of the issuer's common stock. Amount of securities beneficially owned includes 4,967 unvested RSUs. Shares held by Equanimous Investments. The managing members of Equanimous Investments are Carl Russo and Tim Pasquinelli. These individuals may be deemed to have shared voting and investment power over the shares held by Equanimous Investments. Each of these individuals disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein. Shares held by The Crescentico Trust, Carl Russo, Trustee.
RSU grant size 4,967 RSUs Restricted stock units granted to Carl Russo on 2026-05-14
RSU grant price $0.0000 per share Stated price per RSU in the award
Direct holdings after grant 3,958,037 shares Calix common stock held directly by Carl Russo post-transaction
Unvested RSUs included 4,967 RSUs Unvested RSUs counted in beneficially owned securities
Equanimous Investments holdings 1,644,188 shares Calix shares held by Equanimous Investments with shared power and ownership disclaimer
Crescentico Trust holdings 13,782 shares Calix shares held by The Crescentico Trust, Carl Russo trustee
restricted stock units ("RSUs") financial
"Represents a grant of restricted stock units ("RSUs") awarded pursuant to the issuer's non-employee director equity compensation policy"
Restricted stock units (RSUs) are a company promise to give an employee shares of stock (or cash equivalent) in the future, but only after certain conditions—usually staying with the company for a set time or hitting performance goals—are met. Investors watch RSUs because when they vest they increase the number of shares outstanding and can lead insiders to sell shares, affecting share price, company dilution and the true cost of employee pay.
non-employee director equity compensation policy financial
"RSUs awarded pursuant to the issuer's non-employee director equity compensation policy, that will vest in full one day prior"
beneficially owned financial
"Amount of securities beneficially owned includes 4,967 unvested RSUs"
Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.
pecuniary interest financial
"Each of these individuals disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein"
voting and investment power financial
"These individuals may be deemed to have shared voting and investment power over the shares held by Equanimous Investments"
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*
Russo Carl

(Last)(First)(Middle)
C/O CALIX, INC.
3155 OLSEN DRIVE, SUITE 450

(Street)
SAN JOSE CALIFORNIA 95117

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
CALIX, INC [ (CALX) ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirectorX10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
05/14/2026
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 Stock05/14/2026A4,967(1)A$03,958,037(2)D
Common Stock13,782ISee Footnote(3)
Common Stock1,644,188ISee Footnote(4)
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 a grant of restricted stock units ("RSUs") awarded pursuant to the issuer's non-employee director equity compensation policy, that will vest in full one day prior to the issuer's next annual stockholder meeting. Each RSU represents a contingent right to receive one share of the issuer's common stock.
2. Amount of securities beneficially owned includes 4,967 unvested RSUs.
3. Shares held by Equanimous Investments. The managing members of Equanimous Investments are Carl Russo and Tim Pasquinelli. These individuals may be deemed to have shared voting and investment power over the shares held by Equanimous Investments. Each of these individuals disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein.
4. Shares held by The Crescentico Trust, Carl Russo, Trustee.
Remarks:
/s/ Tom Gemetti as Attorney-in-Fact for Carl Russo05/18/2026
** 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)

FAQ

What did Carl Russo report in his latest CALX Form 4 filing?

Carl Russo reported receiving 4,967 restricted stock units in CALIX, INC as a director equity award. These RSUs convert into common shares and vest one day before the company’s next annual stockholder meeting, adding to his existing direct and indirect share positions.

How many CALIX (CALX) shares does Carl Russo hold directly after this filing?

After the reported RSU grant, Carl Russo directly holds 3,958,037 CALIX common shares. This total includes 4,967 unvested restricted stock units, each representing a contingent right to receive one share once the vesting conditions are satisfied before the next annual stockholder meeting.

What are the terms of Carl Russo’s new CALIX restricted stock unit grant?

The filing shows a grant of 4,967 restricted stock units to Carl Russo at no cash cost per unit. Granted under the non-employee director equity compensation policy, these RSUs vest in full one day prior to CALIX’s next annual stockholder meeting, then settle into common shares.

How many CALIX shares are held through Equanimous Investments in this Form 4?

The Form 4 lists 1,644,188 CALIX common shares held by Equanimous Investments. Its managing members, including Carl Russo, may share voting and investment power but each disclaims beneficial ownership of those shares, except to the extent of his individual pecuniary interest in the entity.

What indirect CALIX holdings for Carl Russo are reported via The Crescentico Trust?

The filing reports 13,782 CALIX common shares held by The Crescentico Trust, for which Carl Russo serves as trustee. These shares are classified as indirectly owned, reflecting trust-held stock associated with him in addition to his larger direct and other indirect equity positions.

Does Carl Russo’s CALIX RSU grant involve any purchase price?

The reported 4,967 restricted stock units were granted at a stated price of $0.0000 per share. This indicates a compensation-related equity award rather than an open-market purchase, consistent with CALIX’s non-employee director equity compensation policy described in the filing’s footnotes.