[Form 3] Mediaco Holding Inc. Initial Statement of Beneficial Ownership

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider BlackRock Portfolio Management LLC

Role 10% Owner

Type	Security	Shares	Price	Value
holding	Class A Common Stock Purchase Warrant	--	--	--
holding	Class A Common Stock, par value $0.01 per share	--	--	--

Holdings After Transaction: Class A Common Stock Purchase Warrant — 28,206,152 shares (Indirect, See footnote); Class A Common Stock, par value $0.01 per share — 7,051,538 shares (Indirect, See footnote)

Footnotes (1)

1. Represents securities held by SLF LBI Aggregator, LLC ("Aggregator"). HPS Group GP, LLC ("HPS Group") is the non-member manager of Aggregator. Scott Kapnick is the sole member of HPS Group. Each of Scott Kapnick, HPS Group, Aggregator and BlackRock Portfolio Management LLC disclaims beneficial ownership of such securities except to the extent of their respective pecuniary interest therein, if any. On April 17, 2024, the Issuer issued a Class A Common Stock Purchase Warrant (the "Warrant") to Aggregator, which provides for the purchase of up to 28,206,152 shares of its Class A common stock, par value $0.01 per share, subject to customary adjustments as set forth in the Warrant. The Warrant is currently exercisable for the full amount. The exercise price per Warrant Share is $0.00001.

Understanding Insider Trading Forms →

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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

OMB APPROVAL

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1. Name and Address of Reporting Person^*

BlackRock Portfolio Management LLC

(Last) (First) (Middle)

50 HUDSON YARDS

(Street)

NEW YORK NY 10001

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
07/01/2025

3. Issuer Name and Ticker or Trading Symbol
Mediaco Holding Inc. [ MDIA ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

5. If Amendment, Date of 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

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Class A Common Stock, par value $0.01 per share	7,051,538	I	See footnote(1)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Class A Common Stock Purchase Warrant	(2)	09/08/2025	Class A Common Stock	28,206,152	(3)	I	See footnote(1)

Explanation of Responses:

1. Represents securities held by SLF LBI Aggregator, LLC ("Aggregator"). HPS Group GP, LLC ("HPS Group") is the non-member manager of Aggregator. Scott Kapnick is the sole member of HPS Group. Each of Scott Kapnick, HPS Group, Aggregator and BlackRock Portfolio Management LLC disclaims beneficial ownership of such securities except to the extent of their respective pecuniary interest therein, if any.

2. On April 17, 2024, the Issuer issued a Class A Common Stock Purchase Warrant (the "Warrant") to Aggregator, which provides for the purchase of up to 28,206,152 shares of its Class A common stock, par value $0.01 per share, subject to customary adjustments as set forth in the Warrant. The Warrant is currently exercisable for the full amount.

3. The exercise price per Warrant Share is $0.00001.

Remarks:

In accordance with SEC Release No. 34-39538 (January 12, 1998), BlackRock Portfolio Management LLC is reporting Issuer securities beneficially owned, or deemed to be beneficially owned, by certain business units (collectively, the "Reporting Business Units") of BlackRock, Inc. and its subsidiaries and affiliates. This filing does not include Issuer securities, if any, beneficially owned by other business units whose beneficial ownership of securities is disaggregated from that of the Reporting Business Units in accordance with such release.

	BlackRock Portfolio Management LLC, By: /s/ Joseph Virgilio, Authorized Signatory	07/03/2025
	** Signature of Reporting Person	Date
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