MDIA · Mediaco Holding Inc. · Holdings

$1.10 +0.05 (+4.43%)

Market Cap

$88.22M

84.02M

Volume · Oct 26 7182 Avg daily vol (3M) 14.5K

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP → See every holder of MDIA: 13F, 13D and 13G, insiders and funds →

Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.

Quarter:

Holders: 19

Total Value: $70,077,763

Total Shares: 71,072,793

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 19 13F filers · Δ vs Mar 31, 2026

Top Holder

49.8%

+0.3 pts

Top 5

99.8%

+0.1 pts

Top 10

100.0%

−0.0 pts

HHI

4,949

Highly concentrated+55

Who Holds MDIA

Last 8 quarters through Jun 30, 2026

Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.

Jun 30, 2026: 18 filers, like-for-like change -0.6%; actively managed books -79.3%; index-like books +0.1%.

Holder type	Share	Filers	Change	New	Exited
Registered adviser	50.2%	7	+0.1%	1	0
Bank	0.1%	5	-92.3%	1	1
Holding company	49.6%	2	0.0%	0	0
Non-US	0.0%	0	—	0	0
Exempt adviser	0.0%	0	—	0	0
Unknown	0.1%	4	+21.6%	1	0

Style	Share	Filers	Change	New	Exited
Index-like	50.0%	7	+0.1%	0	0
Systematic-like	0.1%	3	+12.9%	2	0
Concentrated	0.0%	1	0.0%	0	0
Diversified active	0.0%	6	-97.8%	1	1
Unknown	49.8%	1	0.0%	0	0
Not measured	0.0%	0	—	0	0

Turnover	Share	Filers	Change	New	Exited
Low turnover	99.7%	10	-0.6%	1	0
Medium turnover	0.0%	1	-99.6%	0	1
High turnover	0.2%	4	+13.7%	2	0
Unknown	0.2%	3	+45.4%	0	0
Not measured	0.0%	0	—	0	0

Holding horizon	Share	Filers	Change	New	Exited
Short horizon	0.2%	4	+57.8%	1	0
Medium horizon	49.6%	1	0.0%	0	0
Long horizon	50.2%	13	-1.2%	2	1
Not measured	0.0%	0	—	0	0
Unknown	0.0%	0	—	0	0

13F book size	Share	Filers	Change	New	Exited
Under $1B	49.8%	1	0.0%	0	0
$1B to $10B	0.0%	3	+226.6%	1	0
$10B to $100B	0.0%	1	0.0%	0	0
$100B or more	50.1%	13	-1.1%	2	1
Not measured	0.0%	0	—	0	0

Client base	Share	Filers	Change	New	Exited
Individuals and high net worth	0.0%	1	0.0%	0	0
Pooled investment vehicles	50.0%	4	0.0%	1	0
Registered funds and BDCs	0.2%	2	+12.9%	0	0
Unknown	49.8%	11	-1.2%	2	1

Private funds	Share	Filers	Change	New	Exited
Hedge funds	50.0%	3	0.0%	1	0
No private funds	0.2%	4	+12.7%	0	0
Other private funds	0.0%	0	—	0	0
Private equity funds	0.0%	0	—	0	0
Unknown	49.8%	11	-1.2%	2	1

Location	Share	Filers	Change	New	Exited
United States	100.0%	15	-0.5%	1	1
Outside the US	0.0%	3	-78.9%	2	0

How the mix is measured

Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.

Conviction and Crowding

18 13F filers, quarter ended Jun 30, 2026

Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.

Conviction holders

5.56% of filers hold it in their top 10

Mar 31, 2026: 1

Holders above 5%

median weight 0.000%

Mar 31, 2026: 1

Crowding

—

the issuer has more than one class of common stock, so its count is the total across classes

Private-fund advisers

—

of shares outstanding

Institutional ownership

—

the issuer has more than one class of common stock, so its count is the total across classes

Top 10 holders

100.0%

of 13F shares, Herfindahl 0.495

Active holders

-79.3%

like-for-like share change of active filers

5% stakes on record

3 13D, 0 13G

How long holders have held it value-weighted 17.0 quarters

Under 1 year 0.227% 1 to 3 years 49.8% 3 years or more 50.0% Since coverage start 0.000%

Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).

Estimated Holder Cost Basis

Quarter ended Jun 30, 2026, on that quarter's share basis

Estimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.

Estimated avg cost

$2.07

estimated per share

Mar 31, 2026: $1.70

Quarter-end price

$0.99

implied by 13F values

Estimated gain or loss

-52.3%

price against the estimated cost

Estimated at a loss

83.5%

of costed 13F value

Estimated cost covers 0.338% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.

Shareholder Targets

13F filers that own its peers but not MDIA, quarter ended Jun 30, 2026

MDIA has no holder-overlap peers, so these filers hold the largest Communication Services stocks: GOOGL, META, NFLX, DIS, VZ, APP, T, TMUS, CMCSA, SPOT, WBD, EA, TTWO, NBIS, LYV, RBLX. 6,865 filers in all.

#	Filer	In peers	Of book	Largest peers
1	FMR LLC Holding company, Diversified active	$221,590,038,220 16 held	9.69%	GOOGL, META, NFLX
2	VANGUARD PORTFOLIO MANAGEMENT LLC Registered adviser, Diversified active	$117,532,681,264 15 held	5.30%	GOOGL, META, NFLX
3	Invesco Ltd. Adviser, Diversified active	$112,438,465,614 16 held	8.92%	GOOGL, META, NFLX
4	PRICE T ROWE ASSOCIATES INC /MD/ Registered adviser, Diversified active	$93,887,512,892 16 held	9.43%	GOOGL, META, NFLX
5	NORGES BANK Non-US, Index-like	$93,045,053,944 16 held	9.28%	GOOGL, META, NFLX
6	Capital World Investors Adviser, Diversified active	$85,256,034,726 11 held	10.1%	GOOGL, META, NFLX
7	Capital Research Global Investors Adviser, Diversified active	$72,049,461,144 8 held	10.1%	GOOGL, META, NFLX
8	BANK OF AMERICA CORP /DE/ Bank, Diversified active	$67,084,200,102 16 held	4.43%	GOOGL, META, NFLX
9	GOLDMAN SACHS GROUP INC Holding company, Index-like	$61,483,774,802 16 held	6.51%	GOOGL, META, NFLX
10	CHARLES SCHWAB INVESTMENT MANAGEMENT INC Registered adviser, Diversified active	$51,854,473,831 16 held	6.92%	GOOGL, META, VZ

Fund Ownership of MDIA by Fund Type

Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026

Index funds and index ETFs hold 0.20% of shares outstanding.

Fund type	Of shares outstanding	Change	Shares	Funds
Index funds	0.11%	0.00 pp	96,187	4
Index ETFs	0.08%	+0.05 pp	70,508	1
Active ETFs	0.00%	0.00 pp	0	0
Active funds	0.00%	0.00 pp	1,000	1
Unclassified	0.00%	0.00 pp	0	0
All registered funds	0.20%	+0.04 pp	167,695	6

How fund types are measured

Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

New and Sold Out count only filers that reported a 13F for both quarters: a first-time filer's book is not a buy, and a fund that has not filed, or withheld its positions under confidential treatment, has not sold.

Holder count: +2

Institutional value: +48.8%

Shares held: -0.6%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Mega VANGUARD CAPITAL MANAGEMENT LLC	+37,917	70,508
Mega NORTHERN TRUST CORP	+4,420	18,274
Mid Tower Research Capital LLC (TRC)	+1,413	6,596

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Mega JPMORGAN CHASE & CO	−383,400	3
Mega UBS Group AG	−54,739	231
Mega MILLENNIUM MANAGEMENT LLC	−27,129	62,147
Mega GEODE CAPITAL MANAGEMENT, LLC	−18,868	96,397
Mega MORGAN STANLEY	−3	200

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Mega CITADEL ADVISORS LLC	28,302	$27,905
Mid XTX Topco Ltd	10,375	$10,229
Mega ROYAL BANK OF CANADA	1,000	$986

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)	Open
Mega CITIGROUP INC	1	$1

Filter: New 3 Increased 3 Reduced 5 Sold out 1 Unchanged 8

Holder type: Registered adviser 7 Bank 6 Holding company 2 Unknown 4

Showing 19 of 19

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

Standard General L.P.

$34,930,430

49.85%

35,426,400

BlackRock, Inc.

$34,790,692

49.65%

35,284,678

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BlackRock Institutional Trust Company, N.A.	27,202	$26,821	0.1%	Sole
HPS Investment Partners, LLC	35,257,476	$34,763,871	99.9%	Sole

GEODE CAPITAL MANAGEMENT, LLC

$95,047

0.14%

96,397

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GEODE CAPITAL MANAGEMENT TRUST COMPANY, LLC	14,624	$14,419	15.2%	Defined
Held directly	81,773	$80,628	84.8%	Defined

VANGUARD CAPITAL MANAGEMENT LLC

$69,520

0.10%

70,508

MILLENNIUM MANAGEMENT LLC

$61,276

0.09%

62,147

VANGUARD FIDUCIARY TRUST CO

$48,556

0.07%

49,246

CITADEL ADVISORS LLC

$27,905

0.04%

28,302

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	28,302	$27,905	100.0%	Defined

NORTHERN TRUST CORP

$18,018

0.03%

18,274

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
NORTHERN TRUST CO joint	18,274	$18,018	100.0%	Defined

STATE STREET CORP

$16,425

0.02%

16,659

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
STATE STREET GLOBAL ADVISORS TRUST COMPANY	16,659	$16,425	100.0%	Defined

XTX Topco Ltd

$10,229

0.01%

10,375

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
XTX EXECUTION SERVICES LLC joint	10,375	$10,229	100.0%	Defined

Tower Research Capital LLC (TRC)

$6,503

0.01%

6,596

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Latour Trading LLC (Latour)	6,596	$6,503	100.0%	Defined

Vanguard Global Advisers, LLC

$1,701

0.00%

1,726

ROYAL BANK OF CANADA

$986

0.00%

1,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RBC Capital Markets, LLC	1,000	$986	100.0%	Defined

UBS Group AG

$227

0.00%

231

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS AG	231	$227	100.0%	Defined

MORGAN STANLEY

$197

0.00%

200

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY SMITH BARNEY LLC	200	$197	100.0%	Defined

Allworth Financial LP

$31

0.00%

HARBOUR INVESTMENTS, INC.

$18

0.00%

JPMORGAN CHASE & CO

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
J.P. Morgan Securities LLC	3	$2	100.0%	Defined

WELLS FARGO & COMPANY/MN

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WELLS FARGO CLEARING SERVICES, LLC	0	$0	—	Defined

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citigroup Financial Products Inc. joint	1	$1	100.0%	Defined

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