Security Snapshot

MNTN, Inc. - CLASS A COMMON STOCK (MNTN) Institutional Ownership

CUSIP: 55318A108

13F Institutional Holders and Ownership History from Q2 2025 to Q3 2026

13F reference period

Q2 2026

Institutions Reporting

125

Shares (Excl. Options)

38.33MFull value: 38,331,951 · shares · 30 Jun 2026

Price

$9.20

The headline uses the Q2 2026 reference period after its reporting deadline. Available reports may still be incomplete or amended. Newer periods in the history table contain incoming reports and may be incomplete.

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Security type / class
Equity / CLASS A COMMON STOCK
Symbol
MNTN on NYSE
All holders as of 30 Jun 2026
Q2 2026
Total 13F shares
38,331,951
Latest holder snapshot 5 signals
Total 13F value
$352,564,618
Portfolio coverage rank
0%
Share change
+8,232,303
Value change
+$76,036,585
Number of holders
125
Issuer context Names, identifiers, and filing context for this profile. 3 identity fields
Shares outstanding
61,454,179
SEC-reported price per share
$10.17
Insider filing price
$10.17
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Filing notes and source

Key facts

  • MNTN - MNTN, Inc. - CLASS A COMMON STOCK is tracked under CUSIP 55318A108.
  • 125 institutions reported positions in Q2 2026.
  • 11 significant owners is listed from Schedule 13D/13G reporting.

Change

  • Holder count moved from 91 to 125 between Q1 2026 and Q2 2026.
  • SEC-reported value moved from
    $263.93MFull value: $263,934,541 · USD · 31 Mar 2026
    to
    $352.56MFull value: $352,564,618 · USD · 30 Jun 2026
    .

Research use

  • You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
  • 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.

Evidence

Source: SEC Form 13F

Latest holder context comes from 125 institutions filings for Q2 2026.

Open SEC evidence

Security key

55318A108

13F reference period

Q2 2026

13F holders

125

13D/G owners

11

CIK / CUSIP context first

Open Q2 2026 holders MNTN full holder history MNTN, Inc. SEC filings MNTN, Inc. company facts MNTN, Inc. insider transactions

Broader feeds

Latest 13F filings Latest 13D/G filings All securities

13D/G owners

Significant owners

Large-stake holder rows connected to Schedule 13D/G evidence.

Rows
11
Security
MNTN
Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
Douglas Mark Steven 18% $91,551,132 9,586,506 Mark Douglas 30 Jun 2025
Baroda Ventures LLC 12% $140,933,058 6,711,098 Baroda Ventures LLC 30 Jun 2025
WELLINGTON MANAGEMENT GROUP LLP 10% -21% $66,229,832 +$6,057,240 6,307,603 +10% Wellington Management Group LLP 31 Jul 2026
Mercato Partners Growth III GP, LLC 13% $129,528,462 6,168,022 Mercato Partners Growth III GP, LLC 30 Jun 2025
MGD Holdings 8% $87,234,861 4,154,041 MGD Holdings 30 Jun 2025
Greycroft Partners II, L.P. 6.4% +20% $34,425,327 +$12,583,340 3,911,969 +58% Greycroft Partners II, L.P. 31 Mar 2026
Rincon Venture Partners, LLC 6.8% $73,162,467 3,483,927 James Michael Andelman 30 Jun 2025
Peak Investment Holdings, LLC 7.1% $64,626,282 3,077,442 Peak Investment Holdings, LLC 30 Jun 2025
WELLINGTON TRUST Co N A 5.5% $44,726,350 2,411,124 Wellington Trust Company, NA 30 Sep 2025
FMR LLC 3.9% -24% $24,374,571 -$7,580,586 2,396,713 -24% FMR LLC 30 Sep 2026
QUALCOMM INC/DE 0.24% -88% $1,352,400 -$29,621,636 147,000 -96% QUALCOMM Incorporated 30 Jun 2026
As of 30 Jun 2026, 125 institutional investors reported holding
38.33MFull value: 38,331,951 · shares · 30 Jun 2026
shares of MNTN, Inc. - CLASS A COMMON STOCK (MNTN). This represents 62% of the company’s total
61.45MFull value: 61,454,179 · shares · Stored outstanding share count
outstanding shares.

13F concentration

Top 25 institutional shareholders

Largest 13F positions for this security by reported shares and value.

Top holder share
53%
Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
Mercato Management Legacy, LLC 10% 6,168,022 0% 100% $56,745,802
WELLINGTON MANAGEMENT GROUP LLP 9.2% 5,630,486 -9.3% 0.01% $51,800,471
BlackRock, Inc. 6.9% 4,259,878 +1527% 0% $39,190,877
FMR LLC 5.1% 3,142,100 +11% 0% $28,907,320
GREYCROFT LP 3.4% 2,061,643 0% 43% $18,967,116
VANGUARD CAPITAL MANAGEMENT LLC 3.1% 1,919,227 +34% 0% $17,656,888
D. E. Shaw & Co., Inc. 1.9% 1,157,448 +143% 0.01% $10,648,522
GEODE CAPITAL MANAGEMENT, LLC 1.4% 838,563 +479% 0% $7,715,402
ACADIAN ASSET MANAGEMENT LLC 1.1% 692,998 +1138% 0.01% $6,365,000
AMERICAN FINANCIAL GROUP INC 1% 629,683 +8.6% 2% $5,793,084
VANGUARD PORTFOLIO MANAGEMENT LLC 0.99% 609,661 +1346% 0% $5,608,881
BNP PARIBAS FINANCIAL MARKETS 0.94% 579,841 0% 0% $5,334,537
CITADEL ADVISORS LLC 0.88% 541,761 -14% 0% $4,984,201
MORGAN STANLEY 0.78% 480,897 +242% 0% $4,424,252
STATE STREET CORP 0.77% 473,020 +876% 0% $4,351,784
GOLDMAN SACHS GROUP INC 0.7% 427,867 +203% 0% $3,936,377
RAYMOND JAMES FINANCIAL INC 0.66% 404,893 +311% 0% $3,725,015
BANK OF AMERICA CORP /DE/ 0.65% 396,485 +557% 0% $3,647,662
Jump Financial, LLC 0.58% 355,597 +472% 0.03% $3,271,492
Militia Capital Management LLC 0.57% 350,000 +30% 0.58% $3,220,000
Man Group plc 0.56% 341,836 +27% 0.01% $3,144,891
Proem Advisors LLC 0.55% 340,441 +4.6% 0.64% $3,132,057
NORTHERN TRUST CORP 0.52% 320,198 +1182% 0% $2,945,822
Trexquant Investment LP 0.47% 291,432 +3.2% 0.02% $2,681,174
JPMORGAN CHASE & CO 0.47% 290,845 +79% 0% $2,626,330

Quarter history

Institutional holders across reporting periods

Holder count, reported shares/value, and median price by quarter.

Periods
6
Headline period
Q2 2026
Rows shown
1-6 of 6
Period 13F Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q3 1,106,721 $11,243,593 +$7,582,318 $10.17 28
2026 Q2 38,331,951 $352,564,618 +$76,036,585 $9.20 125
2026 Q1 29,994,101 $263,934,541 -$26,300,595 $8.80 91
2025 Q4 24,386,570 $291,194,293 +$43,789,622 $11.94 95
2025 Q3 19,773,364 $366,799,818 -$24,543,335 $18.55 76
2025 Q2 20,170,303 $441,125,328 +$439,997,788 $21.87 59
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