Sec Form 4 Filing - McAdam Timothy P @ Alarm.com Holdings, Inc. - 2017-12-12

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 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 McAdam Timothy P 2. Issuer Name and Ticker or Trading Symbol Alarm.com Holdings, Inc. [ ALRM] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director X __ 10% Owner _____ Officer (give title below) X __ Other (specify below) May be part of a 13(d) group (Last) (First) (Middle) C/O TECHNOLOGY CROSSOVER VENTURES, 528 RAMONA STREET 3. Date of Earliest Transaction (MM/DD/YY) 12/12/2017 (Street) PALO ALTO, CA94301 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ 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 (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 12/08/2017 G( 1 ) V 5,000 D $ 0 35,753 I Timothy P. McAdam ( 2 ) Common Stock 12/08/2017 G( 1 ) V 113,952 D $ 0 0 I Reynolds Family Trust ( 3 ) Common Stock 12/08/2017 G( 1 ) V 3,000 D $ 0 29,780 I Marshall Carroll 2000 Trust ( 4 ) Common Stock 12/12/2017 S 20,407 D $ 36.7834 ( 5 ) 0 I Yuan Family Trust dated 9/22/2006 ( 6 )

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 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

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other McAdam Timothy P C/O TECHNOLOGY CROSSOVER VENTURES 528 RAMONA STREET PALO ALTO, CA94301 X X May be part of a 13(d) group REYNOLDS JON Q JR C/O TECHNOLOGY CROSSOVER VENTURES 528 RAMONA STREET PALO ALTO, CA94301 X May be part of a 13(d) group Marshall Christopher P C/O TECHNOLOGY CROSSOVER VENTURES 528 RAMONA STREET PALO ALTO, CA94301 X May be part of a 13(d) group Yuan David C/O TECHNOLOGY CROSSOVER VENTURES 528 RAMONA STREET PALO ALTO, CA94301 X May be part of a 13(d) group Signatures Frederic D. Fenton, Authorized Signatory for Timothy P. McAdam 12/13/2017 Signature of Reporting Person Date Frederic D. Fenton, Authorized Signatory for Jon Q Reynolds, Jr. 12/13/2017 Signature of Reporting Person Date Frederic D. Fenton, Authorized Signatory for Christopher P. Marshall 12/13/2017 Signature of Reporting Person Date Frederic D. Fenton, Authorized Signatory for David L. Yuan 12/13/2017 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Represents a gift/charitable donation effective 12/08/2017. Not a market transaction thus no price is reported. No value was received in return for the gifted shares. ( 2 )Shares are held directly by Timothy P. McAdam. ( 3 )Jon Q. Reynolds is a Trustee of the Reynolds Family Trust. Mr. Reynolds disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein. ( 4 )Christopher P. Marshall is a Trustee of the Marshall Carroll 2000 Trust. Mr. Marshall disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein. ( 5 )This number represents a weighted average sales price. The shares were sold at prices ranging from $36.64 to $36.90. The Reporting Person hereby undertakes to provide upon request by the Staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each price. ( 6 )David L. Yuan is a Trustee of the Yuan Family Trust dated 9/22/2006. Mr. Yuan disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

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).

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