Latest Period
Q1 2026
Security Snapshot
MNTN, Inc. - Class A Common Stock, par value $0.0001 (MNTN) Institutional Ownership
CUSIP: 55318A108
13F Institutional Holders and Ownership History from Q2 2025 to Q1 2026
Institutions Reporting
89
Shares (Excl. Options)
29,747,399
Price
$8.80
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- Security type / class
- Equity / Class A Common Stock, par value $0.0001
- Symbol
- MNTN on NYSE
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 29,747,399
- Total 13F value
- $261,763,267
- Portfolio coverage rank
- 0%
- Share change
- -1,909,608
- Value change
- -$27,280,340
- Number of holders
- 89
- Shares outstanding
- 61,124,516
- SEC-reported price per share
- $8.15
- Insider filing price
- $8.15
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- MNTN - MNTN, Inc. - Class A Common Stock, par value $0.0001 is tracked under CUSIP 55318A108.
- 89 institutions reported positions in Q1 2026.
- 11 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 95 to 89 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $291,194,293 to $261,763,267.
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
Open SEC evidence
Latest holder context comes from 89 institutions filings for Q1 2026.
Security key
55318A108
Latest holder period
Q1 2026
13F holders
89
13D/G owners
11
CIK / CUSIP context first
Open Q1 2026 holders
MNTN full holder history
MNTN, Inc. SEC filings
MNTN, Inc. company facts
MNTN, Inc. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 55318A108:
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 | |||
| Mercato Partners Growth III GP, LLC | 13% | $129,528,462 | 6,168,022 | Mercato Partners Growth III GP, LLC | 30 Jun 2025 | |||
| WELLINGTON MANAGEMENT GROUP LLP | 13% | +10% | $68,424,833 | +$6,767,676 | 5,730,723 | +11% | Wellington Management Group LLP | 31 Dec 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 | |||
| QUALCOMM INC/DE | 5.5% | -41% | $29,627,338 | -$15,487,754 | 3,366,743 | -34% | QUALCOMM Incorporated | 31 Mar 2026 |
| Peak Investment Holdings, LLC | 7.1% | $64,626,282 | 3,077,442 | Peak Investment Holdings, LLC | 30 Jun 2025 | |||
| FMR LLC | 5% | -23% | $24,859,331 | +$17,222 | 2,824,924 | +0.07% | FMR LLC | 31 Mar 2026 |
| WELLINGTON TRUST Co N A | 5.5% | $44,726,350 | 2,411,124 | Wellington Trust Company, NA | 30 Sep 2025 |
As of 31 Mar 2026, 89 institutional investors reported holding 29,747,399 shares of MNTN, Inc. - Class A Common Stock, par value $0.0001 (MNTN). This represents 49% of the company’s total 61,124,516 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
44%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| WELLINGTON MANAGEMENT GROUP LLP | 10% | 6,209,188 | +8.3% | 0.01% | $54,640,854 |
| Mercato Management Legacy, LLC | 10% | 6,168,022 | 0% | 100% | $54,278,594 |
| FMR LLC | 4.6% | 2,824,924 | +0.07% | 0% | $24,859,331 |
| GREYCROFT LP | 3.4% | 2,061,643 | 0% | 12% | $18,142,458 |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.4% | 1,437,385 | 0% | 0% | $12,648,988 |
| Qube Research & Technologies Ltd | 1.3% | 783,760 | +63% | 0.01% | $6,897,088 |
| FEDERATED HERMES, INC. | 1.1% | 690,000 | +1.5% | 0.01% | $6,072,000 |
| RENAISSANCE TECHNOLOGIES LLC | 1.1% | 646,217 | +41% | 0.01% | $5,686,710 |
| MILLENNIUM MANAGEMENT LLC | 1% | 632,097 | +61% | 0% | $5,562,454 |
| CITADEL ADVISORS LLC | 1% | 630,719 | +14% | 0% | $5,550,327 |
| AMERICAN FINANCIAL GROUP INC | 0.95% | 579,683 | 1.9% | $5,101,210 | |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 0.83% | 505,338 | +1034% | 0.01% | $4,446,974 |
| BNP PARIBAS FINANCIAL MARKETS | 0.79% | 484,294 | 0% | 0% | $4,261,787 |
| D. E. Shaw & Co., Inc. | 0.78% | 476,087 | 0% | $4,189,566 | |
| Mariner, LLC | 0.59% | 361,290 | +0.19% | 0% | $3,179,352 |
| Proem Advisors LLC | 0.53% | 325,441 | 0.95% | $2,863,881 | |
| Trexquant Investment LP | 0.46% | 282,469 | +60% | 0.02% | $2,485,727 |
| MARSHALL WACE, LLP | 0.46% | 281,112 | +750% | 0% | $2,473,784 |
| Man Group plc | 0.44% | 268,814 | +115% | 0% | $2,365,563 |
| BlackRock, Inc. | 0.43% | 261,805 | -89% | 0% | $2,303,884 |
| Militia Capital Management LLC | 0.42% | 259,587 | 0% | 0.52% | $2,284,366 |
| Balyasny Asset Management L.P. | 0.34% | 210,235 | 0% | $1,850,068 | |
| Point72 Asset Management, L.P. | 0.34% | 205,620 | +3.2% | 0% | $1,809,456 |
| MANCHESTER FINANCIAL INC | 0.33% | 200,000 | 0% | 0.34% | $1,760,000 |
| UBS Group AG | 0.28% | 171,627 | -40% | 0% | $1,510,317 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
4
Latest
Q1 2026
Rows shown
1-4 of 4
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 29,747,399 | $261,763,267 | -$27,280,340 | $8.80 | 89 |
| 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 |