Statement of Changes in Beneficial Ownership (4)

FORM 4 [X] 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
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

1. Name and Address of Reporting Person ^* MAFFEI GREGORY B	2. Issuer Name and Ticker or Trading Symbol GRIZZLY MERGER SUB 1, LLC [ GLIBA ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director __X__ 10% Owner __X__ Officer (give title below) _____ Other (specify below) President and CEO
(Last) (First) (Middle) 12300 LIBERTY BOULEVARD	3. Date of Earliest Transaction (MM/DD/YYYY) 12/18/2020
(Street) ENGLEWOOD, CO 80112 (City) (State) (Zip)	4. If Amendment, Date Original Filed (MM/DD/YYYY)	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. Trans. Date	2A. Deemed Execution Date, if any	3. Trans. 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. Trans. Date	2A. Deemed Execution Date, if any	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)
Series A Common Stock	12/18/2020		C		297824.0000	A	$0.0000 ⁽¹⁾	701362.0000	D
Series A Common Stock	12/18/2020		D		701362.0000	D	$0 ⁽²⁾	0.0000	D
Series B Common Stock ⁽³⁾	12/18/2020		C		297824.0000	D	$0.0000 ⁽¹⁾	0.0000	D
Series A Common Stock	12/18/2020		D		859.0000	D	$0 ⁽²⁾	0.0000 ⁽⁴⁾	I	By 401(k) Savings Plan
Series A Common Stock	12/18/2020		D		531650.0000	D	$0 ⁽²⁾	0.0000	I	Maven 2017 - 1 GRAT ⁽⁵⁾

*Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)*
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	4. Trans. 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		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 of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)			11. Nature of Indirect Beneficial Ownership (Instr. 4)
Stock Option (Right to Buy) - GLIBA	$55.9600	12/18/2020		D			108557.0000	⁽⁶⁾	12/26/2024	Series A Common Stock	108557.0000	$0.0000 ⁽⁷⁾	0.0000	D
Stock Option (Right to Buy) - GLIBA	$57.4800	12/18/2020		D			148100.0000	12/31/2020	3/13/2027	Series A Common Stock	148100.0000	$0.0000 ⁽⁷⁾	0.0000	D
Stock Option (Right to Buy) - GLIBA	$71.1300	12/18/2020		D			359329.0000	12/31/2023	12/15/2026	Series A Common Stock	359329.0000	$0.0000 ⁽⁷⁾	0.0000	D
Stock Option (Right to Buy) - GLIBA	$95.5700	12/18/2020		D			303491.0000	12/31/2024	12/7/2027	Series A Common Stock	303491.0000	$0.0000 ⁽⁷⁾	0.0000	D
Stock Option (Right to Buy) - GLIBB	$56.3800	12/18/2020		D			119545.0000	⁽⁶⁾	3/29/2023	Series B Common Stock	119545.0000	$0.0000 ⁽⁸⁾	0.0000	D
Stock Option (Right to Buy) - GLIBB	$56.3800	12/18/2020		D			64732.0000	⁽⁶⁾	3/31/2022	Series B Common Stock	64732.0000	$0.0000 ⁽⁸⁾	0.0000	D
Stock Option (Right to Buy) - GLIBB	$56.3800	12/18/2020		D			258724.0000	⁽⁶⁾	5/11/2024	Series B Common Stock	258724.0000	$0.0000 ⁽⁸⁾	0.0000	D
Stock Option (Right to Buy) - GLIBB	$56.3800	12/18/2020		D			637561.0000	⁽⁶⁾	12/24/2021	Series B Common Stock	637561.0000	$0.0000 ⁽⁸⁾	0.0000	D
Stock Option (Right to Buy) - GLIBB	$58.1100	12/18/2020		D			21457.0000	5/13/2019 ⁽⁶⁾	3/6/2026	Series B Common Stock	21457.0000	$0.0000 ⁽⁸⁾	0.0000	D
Stock Option (Right to Buy) - GLIBB	$54.0100	12/18/2020		D			143044.0000	12/31/2018 ⁽⁶⁾	3/5/2025	Series B Common Stock	143044.0000	$0.0000 ⁽⁸⁾	0.0000	D

Explanation of Responses:
(1)	On October 9, 2020, a putative class action complaint was filed by two purported stockholders of the Issuer in the Court of Chancery of the State of Delaware under the caption Hollywood Firefighters' Pension Fund, et al. v. GCI Liberty, Inc., et al. On November 21, 2020, the plaintiffs and defendants in such lawsuit filed a stipulation and proposed order describing an agreement reached among them. As part of the agreement reached among the parties to the lawsuit, John C. Malone and the reporting person each agreed that he would convert each outstanding share of the Issuer's Series B common stock he beneficially owns immediately prior to the effective time of the Merger (as defined in the Remarks section) into one share of the Issuer's Series A common stock.
(2)	Pursuant to the terms of the Merger Agreement (as defined in the Remarks section), each share of the Issuer's Series A common stock was converted into the right to receive 0.580 of a share of Parent's (as defined in the Remarks section) Series C common stock.
(3)	Each share of the Issuer's Series B common stock is convertible, at the holder's election, into one share of the Issuer's Series A common stock at any time for no consideration other than the surrender of the share of Series B common stock for the share of Series A common stock.
(4)	The number of shares reported as held in the reporting person's 401(k) is based on a statement from the Plan Administrator dated as of November 30, 2020, pro forma for the transactions contemplated by the Merger Agreement.
(5)	The reporting person is the sole trustee of the grantor retained annuity trust, for the benefit of himself, his spouse and his children.
(6)	The derivative security is fully vested.
(7)	Pursuant to the terms of the Merger Agreement, each outstanding stock option to purchase shares of the Issuer's Series A common stock (an "original Series A stock option") was converted into 0.580 of a corresponding stock option to purchase shares of Parent's Series C common stock, rounded down to the nearest whole share. The exercise price of the original Series A stock option was divided by 0.580, with the resulting exercise price rounded up to the nearest cent. The stock options with respect to Parent's Series C common stock are subject to the same vesting, terms, restrictions and other conditions as those applicable to the corresponding original Series A stock option.
(8)	Pursuant to the terms of the Merger Agreement, each outstanding stock option to purchase shares of the Issuer's Series B common stock (an "original Series B stock option") was converted into 0.580 of a corresponding stock option to purchase shares of Parent's Series B common stock, rounded down to the nearest whole share. The exercise price of the original Series B stock option was divided by 0.580, with the resulting exercise price rounded up to the nearest cent. The stock options with respect to Parent's Series B common stock are subject to the same vesting, terms, restrictions and other conditions as those applicable to the corresponding original Series B stock option.

Remarks:
Pursuant to the Agreement and Plan of Merger, dated August 6, 2020 (the "Merger Agreement"), by and among the Issuer, Liberty Broadband Corporation ("Parent"), Grizzly Merger Sub 1, LLC, a Delaware limited liability company and a wholly owned subsidiary of Parent ("Merger LLC"), and Grizzly Merger Sub 2, Inc., a Delaware corporation and a wholly owned subsidiary of Merger LLC ("Merger Sub"), on December 18, 2020, Merger Sub merged with and into the Issuer (the "Merger"), with the Issuer surviving the Merger as a wholly owned subsidiary of Merger LLC, and immediately following the Merger, the Issuer (as the surviving corporation in the Merger) merged with and into Merger LLC (the "Upstream Merger"), with Merger LLC surviving the Upstream Merger as a wholly owned subsidiary of Parent.

Reporting Owners
Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
MAFFEI GREGORY B 12300 LIBERTY BOULEVARD ENGLEWOOD, CO 80112	X	X	President and CEO