FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * MASCHMEIER STEPHANIE   2. Issuer Name and Ticker or Trading Symbol SAIA INC [SAIA] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) Controller (Last) (First) (Middle) 11465 JOHNS CREEK PARKWAY, SUITE 400 3. Date of Earliest Transaction (Month/Day/Year) 02/07/2019 (Street) JOHNS CREEK, GA 30097 4. If Amendment, Date 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 (City) (State) (Zip) 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 02/07/2019   A   4,222 (1) A $ 0 5,315.5 D   Common Stock 02/07/2019   F   1,279 (2) D $ 66.03 4,036.5 D   Common Stock 02/07/2019   A   517 (3) A $ 66.03 4,553.5 D

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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 Underlying Securities (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 of Derivative Security: 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

Stock Options (Right to Buy)

$ 66.03

02/07/2019

A

1,580

02/07/2022

02/07/2026

Common Stock

1,580

$ 0

1,580

D

Phantom Stock

(4)

(5)

(6)

Common Stock

7,136.734

7,136.734

D

Stock Options (Right to Buy)

$ 27.45

02/08/2019

02/08/2023

Common Stock

6,110

6,110

D

Stock Options (Right to Buy)

$ 46.35

02/07/2020

02/07/2024

Common Stock

1,630

1,630

D

Stock Options (Right to Buy)

$ 73.35

02/06/2021

02/06/2025

Common Stock

1,270

1,270

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
MASCHMEIER STEPHANIE 11465 JOHNS CREEK PARKWAY, SUITE 400 JOHNS CREEK, GA 30097			Controller

Signatures

/s/ Stephanie R. Maschmeier		02/11/2019
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	Issuance of Performance Unit Awards under the 2011 Omnibus Incentive Plan for the 1/1/16-12/31/18 performance period.
(2)	Shares withheld at officer's election to cover tax liabilities incurred upon the issuance of Performance Unit Awards under the 2011 Omnibus Incentive Plan for the 1/1/16-12/31/18 performance period.
(3)	Restricted shares granted as part of the long-term incentive program approved by the Compensation Committee. The restricted stock award cliff vests in year three.
(4)	The conversion rate of this derivative security on February 7, 2019 is 1.1913 resulting in 8,502.151 shares of common stock (underlying security in column 7).
(5)	Immediate
(6)	The shares of phantom stock become payable in the Company's common stock upon reporting person's termination of service as an employee, in accordance with the terms of the Plan.

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