Company · Ownership research

MNTN, Inc. MNTN

CIK 0001891027 · CUSIP 55318A108

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 55318A108 (MNTN), not CUSIP 55318A908 (MNTN), CUSIP 55318A958 (MNTN), and does not merge CUSIPs.

This page lists the top 20 of 76 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	WELLINGTON MANAGEMENT GROUP LLP CIK 902219 · View history	$99.16M 5,345,302 shares	0.02%	+2.16M(+67.80%)Added	SEC filing ↗ Nov 14, 2025	▾
02	FMR LLC CIK 315066 · View history	$66.98M 3,610,527 shares	0.00%	-652.86K(-15.30%)Reduced	SEC filing ↗ Nov 13, 2025	▾
03	GREYCROFT LP CIK 1910274 · View history	$38.24M 2,061,643 shares	33.94%	0(0.00%)Unchanged	SEC filing ↗ Nov 14, 2025	▾
04	BlackRock, Inc. CIK 2012383 · View history	$30.89M 1,665,330 shares	0.00%	-226.27K(-12.00%)Reduced	SEC filing ↗ Nov 12, 2025	▾
05	FEDERATED HERMES, INC. CIK 1056288 · View history	$12.06M 650,000 shares	0.02%	+125.00K(+23.80%)Added	SEC filing ↗ Nov 3, 2025	▾
06	VANGUARD GROUP INC CIK 102909 · View history	$11.53M 621,392 shares	0.00%	+551.39K(+787.70%)Added	SEC filing ↗ Nov 7, 2025	▾
07	Bienville Capital Management, LLC CIK 1605070 · View history	$11.41M 615,147 shares	2.17%	+615.15KNew	SEC filing ↗ Nov 14, 2025	▾
08	Liontrust Investment Partners LLP CIK 1544204 · Amended · View history	$6.13M 330,400 shares	0.09%	+185.44K(+127.90%)Added	SEC filing ↗ Nov 24, 2025	▾
09	AMERIPRISE FINANCIAL INC CIK 820027 · View history	$6.02M 324,629 shares	0.00%	-564.82K(-63.50%)Reduced	SEC filing ↗ Nov 14, 2025	▾
10	GOLDMAN SACHS GROUP INC CIK 886982 · View history	$5.69M 306,730 shares	0.00%	+53.89K(+21.30%)Added	SEC filing ↗ Nov 14, 2025	▾
11	CAPTRUST FINANCIAL ADVISORS CIK 1512024 · View history	$5.21M 280,597 shares	0.01%	+280.60KNew	SEC filing ↗ Nov 19, 2025	▾
12	BANK OF MONTREAL /CAN/ CIK 927971 · View history	$4.65M 250,854 shares	0.00%	+48.21K(+23.80%)Added	SEC filing ↗ Nov 13, 2025	▾
13	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$4.63M 249,340 shares	0.00%	+17.60K(+7.60%)Added	SEC filing ↗ Nov 14, 2025	▾
14	CITADEL ADVISORS LLC CIK 1423053 · View history	$4.45M 239,826 shares	0.00%	-80.43K(-25.10%)Reduced	SEC filing ↗ Nov 14, 2025	▾
15	Pier Capital, LLC CIK 1310051 · View history	$4.21M 226,997 shares	0.66%	+227.00KNew	SEC filing ↗ Nov 13, 2025	▾
16	Freestone Grove Partners LP CIK 2007591 · View history	$4.19M 226,102 shares	0.03%	+103.36K(+84.20%)Added	SEC filing ↗ Nov 14, 2025	▾
17	LORD, ABBETT & CO. LLC CIK 728100 · View history	$3.95M 212,724 shares	0.01%	-203.74K(-48.90%)Reduced	SEC filing ↗ Nov 13, 2025	▾
18	BNP PARIBAS FINANCIAL MARKETS CIK 1166588 · View history	$3.04M 163,775 shares	0.00%	+163.78KNew	SEC filing ↗ Nov 13, 2025	▾
19	MORGAN STANLEY CIK 895421 · Amended · View history	$2.77M 149,327 shares	0.00%	-50.46K(-25.30%)Reduced	SEC filing ↗ May 27, 2026	▾
20	S Squared Technology, LLC CIK 1322924 · View history	$2.52M 135,600 shares	0.96%	+135.60KNew	SEC filing ↗ Nov 14, 2025	▾

Showing 20 / 76 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

Cancelled or null records excluded

Disclosed shares

19,773,364

Not deduplicated across managers

Disclosed value

$366.80M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

MNTN, Inc. · Q3 2025

Explore all 76 reporting institutions.

This page includes 20 of 76 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.