Kirby Corp (KEX) VP - CIO Scott Miller awarded 3,615 RSUs

Q: What insider transaction did Kirby Corp (KEX) report for Scott P. Miller?

Kirby Corp reported that VP - CIO Scott P. Miller received 3,615 restricted stock units on January 30, 2026. These units were awarded at a price of $0 per unit and are held as direct beneficial ownership by Miller.

Q: How many restricted stock units did Scott P. Miller receive at Kirby Corp (KEX)?

Scott P. Miller received 3,615 restricted stock units from Kirby Corp. Each unit represents a contingent right to receive either cash or one share of the company’s common stock, according to the terms disclosed in the Form 4 filing.

Q: When do Scott P. Miller’s Kirby Corp (KEX) restricted stock units vest?

The restricted stock units granted on January 30, 2026 vest in five equal annual installments . Vesting begins on February 3, 2027 , with additional installments on each anniversary date, as described in the Form 4 footnotes.

Q: What can Scott P. Miller receive upon vesting of his Kirby Corp (KEX) RSUs?

Upon each vesting date, Scott P. Miller can receive cash or shares of common stock for each restricted stock unit. Kirby Corp may elect whether settlement occurs in cash, stock, or a combination, delivered on or as soon as practicable after vesting.

Q: How many Kirby Corp (KEX) derivative securities does Scott P. Miller hold after this transaction?

Following the January 30, 2026 grant, 3,615 restricted stock units are beneficially owned by Scott P. Miller. The Form 4 indicates these derivative securities are held with direct ownership, reflecting his total RSU holdings from this grant.

Q: What role does Scott P. Miller hold at Kirby Corp (KEX) in this Form 4?

In this Form 4, Scott P. Miller is identified as an officer of Kirby Corp with the title VP - CIO . He is not listed as a director or 10% owner, and the filing is made for one reporting person.

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

Kirby CorpScott P. Miller, VP - CIO, reflecting an equity award. On January 30, 2026, he received 3,615 restricted stock units at a price of $0 per unit, all held as direct beneficial ownership.

The restricted stock units represent the right to receive cash or one share of Kirby common stock for each unit. They were granted on January 30, 2026 and vest in five equal annual installments beginning on February 3, 2027, with cash or shares delivered to Miller on or shortly after each vesting date.

Positive

None.

Negative

None.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider MILLER SCOTT P

Role VP - CIO

Type Security Shares Price Value

Grant/Award Restricted Stock Units 3,615 $0.00 --

Holdings After Transaction: Restricted Stock Units — 3,615 shares (Direct)

Footnotes (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 30, 2026, vest in five equal annual installments beginning on February 3, 2027. 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 →

02/03/2026 - 07:05 PM

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)
01/30/2026

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

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⁾ 01/30/2026 A 3,615 ⁽²⁾ ⁽²⁾ Common Stock 3,615 $0 3,615 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 30, 2026, vest in five equal annual installments beginning on February 3, 2027. 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 02/03/2026

** 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 Corp (KEX) report for Scott P. Miller?

Kirby Corp reported that VP - CIO Scott P. Miller received 3,615 restricted stock units on January 30, 2026. These units were awarded at a price of $0 per unit and are held as direct beneficial ownership by Miller.

How many restricted stock units did Scott P. Miller receive at Kirby Corp (KEX)?

Scott P. Miller received 3,615 restricted stock units from Kirby Corp. Each unit represents a contingent right to receive either cash or one share of the company’s common stock, according to the terms disclosed in the Form 4 filing.

When do Scott P. Miller’s Kirby Corp (KEX) restricted stock units vest?

The restricted stock units granted on January 30, 2026 vest in five equal annual installments. Vesting begins on February 3, 2027, with additional installments on each anniversary date, as described in the Form 4 footnotes.

What can Scott P. Miller receive upon vesting of his Kirby Corp (KEX) RSUs?

Upon each vesting date, Scott P. Miller can receive cash or shares of common stock for each restricted stock unit. Kirby Corp may elect whether settlement occurs in cash, stock, or a combination, delivered on or as soon as practicable after vesting.

How many Kirby Corp (KEX) derivative securities does Scott P. Miller hold after this transaction?

Following the January 30, 2026 grant, 3,615 restricted stock units are beneficially owned by Scott P. Miller. The Form 4 indicates these derivative securities are held with direct ownership, reflecting his total RSU holdings from this grant.

What role does Scott P. Miller hold at Kirby Corp (KEX) in this Form 4?

In this Form 4, Scott P. Miller is identified as an officer of Kirby Corp with the title VP - CIO. He is not listed as a director or 10% owner, and the filing is made for 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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Restricted Stock Units	⁽¹⁾	01/30/2026		A		3,615		⁽²⁾	⁽²⁾	Common Stock	3,615	$0	3,615	D

	Ronald A. Dragg, Agent and Attorney-in-Fact	02/03/2026
	** 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.