Sec Form 3 Filing - Gruending Colin K @ ENBRIDGE INC - 2019-06-01

FORM 3 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

OMB APPROVAL OMB Number: 3235-0287 Expires: November 30, 2011 Estimated average burden hours per response... 0.5

1. Name and Address of Reporting Person Gruending Colin K 2. Issuer Name and Ticker or Trading Symbol ENBRIDGE INC [ ENB] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) See Remarks (Last) (First) (Middle) C/O ENBRIDGE INC., 200. 425 - 1ST STREET SW 3. Date of Earliest Transaction (MM/DD/YY) 06/01/2019 (Street) CALGARY, A0T2P 3L8 4. If Amendment, Date Original Filed (MM/DD/YY) 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 (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 Shares 15,635 D Common Shares 3,019 I Held Indirectly through RRSP - Kim Gruending Common Shares 5,167 I Held Indirectly through RRSP

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 Stock Option (right to buy) $ 23.295 ( 2 ) ( 1 ) 02/16/2020 Common Shares 33,800 D Stock Option (right to buy) $ 28.775 ( 2 ) ( 1 ) 02/14/2021 Common Shares 75,000 D Stock Option (right to buy) $ 38.34 ( 2 ) ( 1 ) 03/02/2022 Common Shares 69,750 D Stock Option (right to buy) $ 44.83 ( 2 ) ( 1 ) 02/27/2023 Common Shares 72,000 D Stock Option (right to buy) $ 48.81 ( 2 ) ( 1 ) 03/13/2024 Common Shares 66,500 D Stock Option (right to buy) $ 59.08 ( 2 ) ( 1 ) 03/02/2025 Common Shares 64,780 D Stock Option (right to buy) $ 44.06 ( 2 ) ( 3 ) 03/01/2026 Common Shares 64,600 D Stock Option (right to buy) $ 55.84 ( 2 ) ( 4 ) 02/28/2027 Common Shares 48,670 D Stock Option (right to buy) $ 43.02 ( 2 ) ( 5 ) 02/27/2028 Common Shares 45,170 D Stock Option (right to buy) $ 48.3 ( 2 ) ( 6 ) 02/21/2029 Common Shares 78,490 D Performance Stock Units ( 7 ) ( 7 ) ( 7 ) Common Shares 2,520 ( 8 ) D Performance Stock Units ( 9 ) ( 9 ) ( 9 ) Common Shares 6,440 ( 8 ) D Performance Stock Units ( 10 ) ( 10 ) ( 10 ) Common Shares 11,940 ( 8 ) D Restricted Stock Units ( 11 ) ( 11 ) ( 11 ) Common Shares 4,960 ( 8 ) D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Gruending Colin K C/O ENBRIDGE INC. 200. 425 - 1ST STREET SW CALGARY, A0T2P 3L8 See Remarks Signatures /s/ Michelle Lowther, attorney-in-fact 06/03/2019 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The options are fully vested. ( 2 )The exercise price is in Canadian dollars. ( 3 )The options were granted on February 29, 2016 and vest in four equal annual installments. ( 4 )The options were granted on February 28, 2017 and vest in four equal annual installments. ( 5 )The options were granted on February 27, 2018 and vest in four equal annual installments. ( 6 )The options were granted on February 21, 2019 and vest in four equal annual installments. ( 7 )The units were granted on January 1, 2017 and will vest on December 31, 2019. The units represent a contingent right to receive in cash the value of one Enbridge Common Share based on pre-determined performance factors, with a maximum payment on settlement of 200% of the grant. ( 8 )Total includes the reinvestment of dividends. ( 9 )The units were granted on February 1, 2018 and have a three year performance period commencing on January 1, 2018 and ending on December 31, 2020. The units represent a contingent right to receive in cash the value of one Enbridge Common Share based on pre-determined performance factors, with a maximum payment on settlement of 200% of the grant. ( 10 )The units were granted on February 21, 2019 and have a three year performance period commencing on January 1, 2019 and ending on December 31, 2021. The units represent a contingent right to receive in cash the value of one Enbridge Common Share based on pre-determined performance factors, with a maximum payment on settlement of 200% of the grant. ( 11 )Each unit represents a contingent right to receive one Enbridge Common Share. The units were granted on May 15, 2018 and will vest as to 20% of the award on each of the first and second anniversaries of grant, with the remainder of such award vesting on the third anniversary grant, on the condition that the officer remain employed at Enbridge throughout that time.

Remarks: Executive Vice President & Chief Financial Officer

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.