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Kirby (NYSE: KEX) VP–CIO Miller settles RSUs and disposes 1,311 shares

Filing Impact
(Moderate)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

Kirby Corporation VP–CIO Scott P. Miller reported equity compensation activity involving restricted stock units and common shares. On February 3, 2026, Miller acquired 5,375 shares of Kirby common stock at $0 per share through transactions coded M, increasing his directly held common stock to 8,836 shares.

That same day, a separate transaction coded F shows a disposition of 1,311 common shares at $120.68 per share, leaving Miller with 7,525 directly owned common shares. Multiple restricted stock unit grants vested, with portions converting into common stock while remaining RSUs continue to vest in annual installments.

Positive

  • None.

Negative

  • None.
Insider MILLER SCOTT P
Role VP - CIO
Type Security Shares Price Value
Exercise Restricted Stock Units 1,591 $0.00 --
Exercise Restricted Stock Units 1,664 $0.00 --
Exercise Restricted Stock Units 1,433 $0.00 --
Exercise Restricted Stock Units 687 $0.00 --
Exercise Common Stock, par value $0.10 per share 5,375 $0.00 --
Tax Withholding Common Stock, par value $0.10 per share 1,311 $120.68 $158K
Holdings After Transaction: Restricted Stock Units — 1,591 shares (Direct); Common Stock, par value $0.10 per share — 8,836 shares (Direct)
Footnotes (1)
  1. Each restricted stock unit represents a contingent right to receive cash or one share of common stock of the issuer. These restricted stock units granted on January 28, 2022, vest in five equal annual installments beginning on February 3, 2023. Cash or shares of common stock of the issuer, at the election of the issuer, will be delivered to the reporting person on or as soon as practicable on each vesting date. These restricted stock units granted on February 1, 2023, vest in five equal annual installments beginning on February 3, 2024. Cash or shares of common stock of the issuer, at the election of the issuer, will be delivered to the reporting person on or as soon as practicable on each vesting date. These restricted stock units granted on February 2, 2024, vest in five equal annual installments beginning on February 3, 2025. Cash or shares of common stock of the issuer, at the election of the issuer, will be delivered to the reporting person on or as soon as practicable on each vesting date. These restricted stock units granted on January 31, 2025, vest in five equal annual installments beginning on February 3, 2026. Cash or shares of common stock of the issuer, at the election of the issuer, will be delivered to the reporting person on or as soon as practicable on each vesting date.
Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4 UNITED 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*
MILLER SCOTT P
(Last) (First) (Middle)
55 WAUGH DRIVE
SUITE 1000
(Street)
HOUSTON TX 77007
(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
KIRBY CORP [ KEX ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
VP - CIO
3. Date of Earliest Transaction (Month/Day/Year)
02/03/2026
4. If Amendment, Date of Original Filed (Month/Day/Year)
 6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
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)
Code V Amount (A) or (D) Price
Common Stock, par value $0.10 per share 02/03/2026 M 5,375 A $0(1) 8,836 D
Common Stock, par value $0.10 per share 02/03/2026 F 1,311 D $120.68 7,525 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)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Restricted Stock Units (1) 02/03/2026 M 1,591 (2) (2) Common Stock 1,591 $0 1,591 D
Restricted Stock Units (1) 02/03/2026 M 1,664 (3) (3) Common Stock 1,664 $0 3,328 D
Restricted Stock Units (1) 02/03/2026 M 1,433 (4) (4) Common Stock 1,433 $0 4,299 D
Restricted Stock Units (1) 02/03/2026 M 687 (5) (5) Common Stock 687 $0 2,748 D
Explanation of Responses:
1. Each restricted stock unit represents a contingent right to receive cash or one share of common stock of the issuer.
2. These restricted stock units granted on January 28, 2022, vest in five equal annual installments beginning on February 3, 2023. Cash or shares of common stock of the issuer, at the election of the issuer, will be delivered to the reporting person on or as soon as practicable on each vesting date.
3. These restricted stock units granted on February 1, 2023, vest in five equal annual installments beginning on February 3, 2024. Cash or shares of common stock of the issuer, at the election of the issuer, will be delivered to the reporting person on or as soon as practicable on each vesting date.
4. These restricted stock units granted on February 2, 2024, vest in five equal annual installments beginning on February 3, 2025. Cash or shares of common stock of the issuer, at the election of the issuer, will be delivered to the reporting person on or as soon as practicable on each vesting date.
5. These restricted stock units granted on January 31, 2025, vest in five equal annual installments beginning on February 3, 2026. Cash or shares of common stock of the issuer, at the election of the issuer, will be delivered to the reporting person on or as soon as practicable on each vesting date.
Ronald A. Dragg, Agent and Attorney-in-Fact 02/05/2026
** Signature of Reporting Person Date
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.

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did Kirby (KEX) VP–CIO Scott P. Miller report?

Scott P. Miller reported equity compensation activity on February 3, 2026. He acquired 5,375 Kirby common shares via restricted stock unit settlements and disposed of 1,311 shares in a separate transaction coded F, ending with 7,525 directly owned common shares.

How many Kirby (KEX) common shares does Scott P. Miller hold after this Form 4?

After the reported transactions on February 3, 2026, Scott P. Miller directly owns 7,525 Kirby common shares. This reflects acquisition of 5,375 shares at $0 per share and a disposition of 1,311 shares at $120.68 per share on the same date.

What does the transaction code M indicate in Scott P. Miller’s Kirby (KEX) Form 4?

Transaction code M on the Form 4 indicates exercises or settlements of derivative securities into common stock. Miller’s code M entries show restricted stock units converting into Kirby common shares at a price of $0 per share on February 3, 2026.

What does the transaction code F represent in this Kirby (KEX) insider filing?

The Form 4 shows a transaction coded F for 1,311 Kirby common shares at $120.68 per share. Code F designates a disposition of shares, recorded here alongside the same-day equity award settlements reported by Scott P. Miller.

How are Kirby (KEX) restricted stock units structured for Scott P. Miller?

Each restricted stock unit represents a contingent right to receive cash or one Kirby common share. The grants vest in five equal annual installments, with cash or shares delivered on or as soon as practicable after each vesting date, at the issuer’s election.

What vesting schedule applies to Scott P. Miller’s Kirby (KEX) RSU grants?

Miller’s RSUs granted in 2022, 2023, 2024, and 2025 each vest in five equal annual installments. Vesting begins one year after the specified grant-related February 3 date, with cash or shares delivered on or as soon as practicable after each vesting date.