# MNTN INC CL A

MNTN INC CL A is a security (CUSIP 55318A108) tracked across SEC portfolio filings. 110 institutional managers reported $386.5M on Form 13F as of 2026-06-30; 5 registered fund positions totaling $1.8M via N-PORT as of 2026-03-31.

## Summary

- Issuer: MNTN INC
- Class: CL A
- CUSIP: 55318A108
- Asset category: EC
- 13F holders: 110
- 13F value: $386.5M
- 13F period: 2026-06-30
- N-PORT fund positions: 5
- N-PORT value: $1.8M
- N-PORT report: 2026-03-31

## Top institutional holders (Form 13F)

_Showing 15 of 110 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| MERCATO PARTNERS GROWTH III GP, LLC | Cottonwood Heights, UT | $114.4M | 6,168,022 |
| [Mercato Management Legacy, LLC](https://search.stillhousedata.com/firm/335389) | COTTONWOOD HEIGHTS, UT | $56.7M | 6,168,022 |
| WELLINGTON MANAGEMENT GROUP LLP | BOSTON, MA | $54.6M | 6,209,188 |
| FMR LLC | BOSTON, MA | $24.9M | 2,824,924 |
| [Greycroft LP](https://search.stillhousedata.com/firm/162561) | New York, NY | $18.1M | 2,061,643 |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $7.1M | 596,874 |
| [CITADEL ADVISORS LLC](https://search.stillhousedata.com/firm/148826) | MIAMI, FL | $7.0M | 630,719 |
| [Qube Research & Technologies Ltd](https://search.stillhousedata.com/firm/304552) | LONDON, X0 | $6.9M | 783,760 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | BALA CYNWYD, PA | $6.4M | 505,338 |
| FEDERATED HERMES, INC. | Pittsburgh, PA | $6.1M | 690,000 |
| [RENAISSANCE TECHNOLOGIES LLC](https://search.stillhousedata.com/firm/106661) | NEW YORK, NY | $5.7M | 646,217 |
| MILLENNIUM MANAGEMENT LLC | NEW YORK, NY | $5.6M | 632,097 |
| AMERICAN FINANCIAL GROUP INC | CINCINNATI, OH | $5.1M | 579,683 |
| BNP PARIBAS ARBITRAGE, SNC | PARIS, I0 | $4.3M | 484,294 |
| D. E. Shaw & Co., Inc. | New York, NY | $4.2M | 476,087 |

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $1.0M | 0.13% |
| [Federated Hermes Managed Volatility Fund II](https://search.stillhousedata.com/fund/S000009746) | Federated Hermes Insurance Series | $229K | 13.40% |
| [VANGUARD GROWTH AND INCOME FUND](https://search.stillhousedata.com/fund/S000002913) | VANGUARD QUANTITATIVE FUNDS | $200K | 0.12% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $198K | 0.03% |
| [VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002855) | VANGUARD INSTITUTIONAL INDEX FUNDS | $148K | 0.05% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/55318A108.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.