MNTN, Inc.
MNTN- Exchange
- NYSE
- Industry
- Services-Advertising
- SEC CIK
- 0001891027
In the last 90 days, MNTN, Inc. insiders filed 0 open-market purchases and 2 sales; 126 institutions reported holding it in 13F filings for Q2 2026, worth $353.8M in total; Tiger Global Management is the only superinvestor holding it.
Holders of 5% or more of MNTN
Holders whose latest Schedule 13D or 13G filing reports 5% or more of MNTN, Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Douglas Mark Steven | 13G | 17.80%9.59M shares | New | Feb 17, 20261 filing | Feb 17, 2026 | SEC |
| Mercato Partners Growth III GP, LLC | 13G | 12.80%6.17M shares | New | Aug 14, 20251 filing | Aug 14, 2025 | SEC |
| Baroda Ventures LLC | 13G | 12.20%6.71M shares | New | Aug 14, 20251 filing | Aug 14, 2025 | SEC |
| Wellington Management Group LLP | 13G/A | 9.20%5.63M shares | −1.10 ppfrom 10.30% | Aug 12, 20256 filings | Aug 13, 2026 | SEC |
| MGD Holdings | 13G | 8.00%4.15M shares | New | Aug 14, 20251 filing | Aug 14, 2025 | SEC |
| Peak Investment Holdings, LLC | 13G | 7.10%3.08M shares | New | Aug 14, 20251 filing | Aug 14, 2025 | SEC |
| Rincon Venture Partners, LLC | 13G | 6.80%3.48M shares | New | Aug 14, 20251 filing | Aug 14, 2025 | SEC |
| Greycroft Partners II, L.P. | 13G/A | 6.40%3.91M shares | +1.00 ppfrom 5.40% | Aug 14, 20252 filings | May 15, 2026 | SEC |
| FMR LLC | 13G | 5.10%3.14M shares | +0.10 ppfrom 5.00% | Jun 6, 20255 filings | Aug 6, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
24 Schedule 13D and 13G filings on MNTN, Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Aug 13, 20264:05 PM ET | Wellington Management Group LLPand 3 others | 13G/A | 9.20%5.63M shares | −1.10 ppfrom 10.30% | Jun 30, 2026 | SEC |
| Aug 6, 202610:42 AM ET | Wellington Management Group LLPand 3 others | 13G/A | 10.30%6.31M shares | −0.60 ppfrom 10.90% | Jul 31, 2026 | SEC |
| Aug 6, 202610:33 AM ET | FMR LLCand 1 other | 13G | 5.10%3.14M shares | +0.10 ppfrom 5.00% | Jun 30, 2026 | SEC |
| Jul 16, 20264:48 PM ET | Qualcomm Inc | 13G/A | 0.24%147.0K shares | −5.26 ppfrom 5.50%Below 5% | Jun 30, 2026 | SEC |
| May 15, 20264:17 PM ET | Greycroft Partners II, L.P.and 3 others | 13G/A | 6.40%3.91M shares | +1.00 ppfrom 5.40% | Mar 31, 2026 | SEC |
| May 15, 20268:01 AM ET | Wellington Trust Co N A | 13G/A | 4.70%2.67M shares | −0.80 ppfrom 5.50%Below 5% | Mar 31, 2026 | SEC |
| May 15, 20267:24 AM ET | Wellington Management Group LLPand 3 others | 13G/A | 10.90%6.21M shares | −2.10 ppfrom 13.00% | Mar 31, 2026 | SEC |
| May 12, 20264:20 PM ET | Qualcomm Inc | 13G/A | 5.50%3.37M shares | −4.10 ppfrom 9.60% | Mar 31, 2026 | SEC |
| May 6, 202611:30 AM ET | FMR LLCand 1 other | 13G/A | 5.00%2.82M shares | −1.40 ppfrom 6.40% | Mar 31, 2026 | SEC |
| Feb 17, 20269:55 PM ET | Douglas Mark Stevenand 1 other | 13G | 17.80%9.59M shares | New | Jun 30, 2025 | SEC |
| Feb 10, 202611:21 AM ET | Wellington Management Group LLPand 3 others | 13G/A | 13.00%5.73M shares | +1.20 ppfrom 11.80% | Dec 31, 2025 | SEC |
| Feb 5, 20261:31 PM ET | FMR LLCand 1 other | 13G/A | 6.40%2.82M shares | −2.60 ppfrom 9.00% | Dec 31, 2025 | SEC |
| Nov 12, 20259:58 AM ET | Wellington Trust Co N A | 13G | 5.50%2.41M shares | New | Sep 30, 2025 | SEC |
| Sep 8, 202510:09 AM ET | Wellington Management Group LLPand 3 others | 13G/A | 11.80%5.16M shares | +5.10 ppfrom 6.70% | Aug 29, 2025 | SEC |
| Aug 14, 20257:42 PM ET | Peak Investment Holdings, LLC | 13G | 7.10%3.08M shares | New | Jun 30, 2025 | SEC |
| Aug 14, 20254:46 PM ET | Greycroft Partners II, L.P.and 3 others | 13G | 5.40%2.48M shares | New | Jun 30, 2025 | SEC |
| Aug 14, 20258:02 AM ET | Mercato Partners Growth III GP, LLCand 5 others | 13G | 12.80%6.17M shares | New | Jun 30, 2025 | SEC |
| Aug 14, 20258:01 AM ET | MGD Holdingsand 1 other | 13G | 8.00%4.15M shares | New | Jun 30, 2025 | SEC |
| Aug 14, 20258:00 AM ET | Baroda Ventures LLCand 1 other | 13G | 12.20%6.71M shares | New | Jun 30, 2025 | SEC |
| Aug 14, 20258:00 AM ET | Rincon Venture Partners, LLCand 7 others | 13G | 6.80%3.48M shares | New | Jun 30, 2025 | SEC |
| Aug 12, 202510:34 AM ET | Wellington Management Group LLPand 3 others | 13G | 6.70%3.19M shares | New | Jun 30, 2025 | SEC |
| Aug 6, 202512:06 PM ET | FMR LLCand 1 other | 13G/A | 9.00%4.26M shares | −1.60 ppfrom 10.60% | Jun 30, 2025 | SEC |
| Jul 29, 20254:58 PM ET | Qualcomm Inc | 13G | 9.60%5.13M shares | New | Jun 30, 2025 | SEC |
| Jun 6, 202510:03 AM ET | FMR LLCand 1 other | 13G | 10.60%5.04M shares | New | May 30, 2025 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell MNTN, Inc. shares.
No Form 144 notices for MNTN, Inc. are on file.