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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(Print or Type Responses)

1. Name and Address of Reporting Person * Sjostrom Sharon   2. Issuer Name and Ticker or Trading Symbol Advanced Emissions Solutions, Inc. [ADES] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Chief Product Officer (Last) (First) (Middle) 640 PLAZA DRIVE, SUITE 270, C/O ADVANCED EMISSIONS SOLUTIONS, INC. 3. Date of Earliest Transaction (Month/Day/Year) 03/01/2018 (Street) HIGHLANDS RANCH, CO 80129 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 03/01/2018   M   3,589 (1) A $ 0 56,830 D   Common Stock 03/01/2018   M   479 (2) A $ 0 57,309 D   Common Stock 03/01/2018   F   1,394 D $ 9.73 55,915 D

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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

Performance Share Units

(1)

03/01/2018

M

8,510

(1)

(1)

Common Stock

8,510

$ 0

0

D

Performance Share Units

(2)

03/01/2018

M

1,136

(2)

(2)

Common Stock

1,136

$ 0

0

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Sjostrom Sharon 640 PLAZA DRIVE, SUITE 270 C/O ADVANCED EMISSIONS SOLUTIONS, INC. HIGHLANDS RANCH, CO 80129			Chief Product Officer

Signatures

/s/ Sharon Sjostrom		03/05/2018
**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)	On March 1, 2018, the Compensation Committee of the Board of Directors of the issuer determined that of the 8,510 performance share units ("PSUs") awarded to the reporting person on March 3, 2015 pursuant to the 2015 Long Term Incentive Plan under the issuer's Amended and Restated 2007 Equity Incentive Plan, as amended (the "2007 Plan"), 3,589 PSUs vested based on the achievement of specific performance criteria over a three year performance period ended December 31, 2017. Each vested PSU represented the right to receive one share of the issuer's common stock.
(2)	On March 1, 2018, the Compensation Committee of the Board of Directors of the issuer determined that of the 1,136 PSUs awarded to the reporting person on July 3, 2015 pursuant to the 2015 Long Term Incentive Plan under the 2007 Plan, 479 PSUs vested based on the achievement of specific performance criteria over a three year performance period ended December 31, 2017. Each vested PSU represented the right to receive one share of the issuer's common stock.

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