MNTN, Inc. reporting persons amended a Schedule 13G/A to disclose beneficial ownership positions as of March 31, 2026. The Reporting Persons collectively beneficially owned 6,074,908 shares of Class A common stock, representing 9.99% of the Class A shares.
The filing states 56,796,624 shares of Class A common stock outstanding as of February 2, 2026 and that Reporting Persons may convert up to 4,013,265 shares of Class B common stock into Class A common stock subject to a Conversion Restriction that caps collective ownership at 9.99%.
Positive
None.
Negative
None.
Insights
Greedycroft entities report a near-10% capped stake via convertible Class B shares.
The filing discloses that the Reporting Persons collectively beneficially owned 6,074,908 shares of Class A common stock as of March 31, 2026, and hold Class B shares convertible into up to 4,013,265 Class A shares subject to a Conversion Restriction.
The operative qualifier — the Conversion Restriction limiting post-conversion ownership to 9.99% — governs any further conversion. Subsequent filings would show whether conversions occur or ownership percentages change.
Key Figures
Beneficial ownership:6,074,908 sharesOwnership percent:9.99%Shares outstanding:56,796,624 shares+4 more
7 metrics
Beneficial ownership6,074,908 sharesAggregate Class A common stock beneficially owned as of March 31, 2026
Ownership percent9.99%Collective percent of Class A common stock as of March 31, 2026
Shares outstanding56,796,624 sharesClass A common stock outstanding as of February 2, 2026
Convertible shares permitted4,013,265 sharesClass B shares convertible into Class A subject to Conversion Restriction
Class B held by GCP II5,044,866 sharesClass B common stock directly held by Greycroft Partners II, L.P.
Class A held by GCG III2,061,643 sharesClass A common stock directly held by Greycroft Growth III, L.P.
Class B held by GCG III130,631 sharesClass B common stock directly held by Greycroft Growth III, L.P.
Key Terms
Conversion Restriction, Schedule 13G/A, beneficially owned, Class B common stock
4 terms
Conversion Restrictionregulatory
"Pursuant to an agreement among the Reporting Persons and the Issuer, the Reporting Persons are prohibited from converting their shares"
Schedule 13G/Aregulatory
"The Reporting Persons amended a Schedule 13G/A to disclose beneficial ownership positions"
A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.
beneficially ownedfinancial
"The Reporting Persons collectively beneficially owned an aggregate of 6,074,908 shares"
Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.
Class B common stockfinancial
"Each share of Class B common stock is convertible into one share of Class A common stock"
A class B common stock is one of multiple types of a company’s ordinary shares that carries specific rights—often different voting power or dividend priority—compared with other classes. For investors it matters because those differences affect how much influence you have over company decisions, the income you might receive, and how freely the shares trade; think of it like owning a car with different keys: some keys let you start the engine and open the trunk, others only unlock the door.
What percentage of MNTN (symbol MNTN) do the Reporting Persons own?
They collectively beneficially owned 9.99% of Class A common stock as of March 31, 2026. This percentage is calculated using 56,796,624 Class A shares outstanding as of February 2, 2026 and conversion mechanics disclosed in the filing.
How many shares can the Reporting Persons convert from Class B to Class A?
The Reporting Persons were permitted to convert an aggregate of 4,013,265 shares of Class B common stock into Class A common stock as of March 31, 2026. Conversions are limited by the filing's stated Conversion Restriction.
How many Class A shares do the Reporting Persons beneficially own in total?
The filing reports an aggregate of 6,074,908 shares of Class A common stock beneficially owned by the Reporting Persons as of March 31, 2026. That total includes allocated shares issuable upon conversion of Class B stock.
What is the Conversion Restriction described in the filing?
The Conversion Restriction prevents the Reporting Persons from converting Class B shares if, after conversion, they would collectively own more than 9.99% of outstanding Class A common stock. The filing cites this restriction as an agreed limit.
Which entities filed the Schedule 13G/A amendment for MNTN?
The filing is by Greycroft Partners II, L.P.; Greycroft Managers II, LLC; Greycroft Growth III, L.P.; and Greycroft Growth III, LLC. The Reporting Persons disclaim status as a "group" in the filing.
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
(Amendment No. 1)
MNTN, Inc.
(Name of Issuer)
Class A Common Stock, par value $0.0001
(Title of Class of Securities)
55318A108
(CUSIP Number)
03/31/2026
(Date of Event Which Requires Filing of this Statement)
Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
Rule 13d-1(b)
Rule 13d-1(c)
Rule 13d-1(d)
schemaVersion:
SCHEDULE 13G
CUSIP Number(s):
55318A108
1
Names of Reporting Persons
Greycroft Partners II, L.P.
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
3,911,969.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
3,911,969.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
3,911,969.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
6.4 %
12
Type of Reporting Person (See Instructions)
PN
SCHEDULE 13G
CUSIP Number(s):
55318A108
1
Names of Reporting Persons
Greycroft Managers II, LLC
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
3,911,969.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
3,911,969.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
3,911,969.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
6.4 %
12
Type of Reporting Person (See Instructions)
OO
SCHEDULE 13G
CUSIP Number(s):
55318A108
1
Names of Reporting Persons
Greycroft Growth III, L.P.
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
2,162,939.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
2,162,939.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
2,162,939.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
3.8 %
12
Type of Reporting Person (See Instructions)
PN
SCHEDULE 13G
CUSIP Number(s):
55318A108
1
Names of Reporting Persons
Greycroft Growth III, LLC
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
2,162,939.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
2,162,939.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
2,162,939.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
3.8 %
12
Type of Reporting Person (See Instructions)
OO
SCHEDULE 13G
Item 1.
(a)
Name of issuer:
MNTN, Inc.
(b)
Address of issuer's principal executive offices:
823 Congress Avenue #1827, Austin, TX, 78768.
Item 2.
(a)
Name of person filing:
The names of the persons filing this report (collectively, the "Reporting Persons") are:
Greycroft Partners II, L.P. ("GCP II")
Greycroft Managers II, LLC ("GCP II GP")
Greycroft Growth III, L.P. ("GCG III")
Greycroft Growth III, LLC ("GCG III GP")
The Reporting Persons expressly disclaim status as a "group" for purposes of this Schedule 13G.
(b)
Address or principal business office or, if none, residence:
c/o Greycroft LP
292 Madison Avenue, Fl. 8
New York, NY 10017
(c)
Citizenship:
GCP II Delaware
GCP II GP Delaware
GCG III Delaware
GCG III GP Delaware
(d)
Title of class of securities:
Class A Common Stock, par value $0.0001
(e)
CUSIP No.:
55318A108
Item 3.
If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)
Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)
Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)
Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)
Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)
An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)
An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)
A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)
A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)
A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)
A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J),
please specify the type of institution:
(k)
Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.
Ownership
(a)
Amount beneficially owned:
Row 9 of each Reporting Person's cover page to this Schedule 13G sets forth the aggregate number of securities of the Issuer beneficially owned by such Reporting Person as of March 31, 2026 and is incorporated by reference.
The Reporting Persons' ownership of the Issuer's securities consists of (i) 5,044,866 shares of Class B common stock directly held by GCP II; and (ii) 2,061,643 shares of Class A common stock and 130,631 shares of Class B common stock directly held by GCG III. Each share of Class B common stock is convertible into one share of Class A common stock, subject to the limitation described in the following paragraph.
Pursuant to an agreement among the Reporting Persons and the Issuer, the Reporting Persons are prohibited from converting their shares of Class B common stock into Class A common stock to the extent that, following such conversion, the Reporting Persons (and their attribution parties) would collectively own in excess of 9.99% of the outstanding Class A common stock (the "Conversion Restriction"). By virtue of the Conversion Restriction, as of March 31, 2026, the Reporting Persons were permitted to convert an aggregate of 4,013,265 shares of Class B common stock to Class A common stock. For purposes of this Schedule 13G, the beneficial ownership of shares issuable upon conversion of the Class B common stock held by the Reporting Persons has been allocated to GCP II and GCG III in proportion to their respective holdings of Class B common stock.
The Reporting Persons collectively beneficially owned an aggregate of 6,074,908 shares of Class A common stock as of March 31, 2026.
GCP II GP is the general partner of GCP II and shares voting and investment authority over the shares held by GCP II. GCG III GP is the general partner of GCG III and shares voting and investment authority over the shares held by GCG III.
The Reporting Persons expressly disclaim the existence of a "group" for purposes within the meaning of Section 13 of the Exchange Act and the filing of this report shall not be deemed an admission that the Reporting Persons constitute a group.
(b)
Percent of class:
Row 11 of each Reporting Person's cover page to this Schedule 13G sets forth the percentages of the securities of the Issuer beneficially owned by such Reporting Person as of March 31, 2026 and is incorporated by reference. The percentage set forth in each row 11 is based upon (i) the sum of 56,796,624 shares of Class A common stock outstanding as of February 2, 2026, as disclosed in the Issuer's Annual Report on Form 10-K, filed with the Securities and Exchange Commission (the "SEC") on February 19, 2026, and (ii) 4,013,265 shares of Class A common stock issuable upon conversion of Class B common stock held by the Reporting Persons.
The Reporting Persons collectively beneficially owned an aggregate of 9.99% of the Class A common stock as of March 31, 2026.
(c)
Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:
Row 5 of each Reporting Person's cover page to this Schedule 13G sets forth the sole power to vote or to direct the vote of securities of the Issuer beneficially owned by such Reporting Person as of March 31, 2026 and is incorporated by reference.
(ii) Shared power to vote or to direct the vote:
Row 6 of each Reporting Person's cover page to this Schedule 13G sets forth the shared power to vote or to direct the vote of securities of the Issuer beneficially owned by such Reporting Person as of March 31, 2026 and is incorporated by reference.
(iii) Sole power to dispose or to direct the disposition of:
Row 7 of each Reporting Person's cover page to this Schedule 13G sets forth the sole power to dispose or to direct the disposition of securities of the Issuer beneficially owned by such Reporting Person as of March 31, 2026 and is incorporated by reference.
(iv) Shared power to dispose or to direct the disposition of:
Row 8 of each Reporting Person's cover page to this Schedule 13G sets forth the shared power to dispose or to direct the disposition of securities of the Issuer beneficially owned by such Reporting Person as of March 31, 2026 and is incorporated by reference.
Item 5.
Ownership of 5 Percent or Less of a Class.
Not Applicable
Item 6.
Ownership of more than 5 Percent on Behalf of Another Person.
Not Applicable
Item 7.
Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
Not Applicable
Item 8.
Identification and Classification of Members of the Group.
Not Applicable
Item 9.
Notice of Dissolution of Group.
Not Applicable
Item 10.
Certifications:
Not Applicable
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.
Greycroft Partners II, L.P.
Signature:
/s/ Ian Sigalow
Name/Title:
By Greycroft Managers II, LLC, its General Partner, By Ian Sigalow, Managing Partner
Date:
05/15/2026
Greycroft Managers II, LLC
Signature:
/s/ Ian Sigalow
Name/Title:
By Ian Sigalow, Managing Partner
Date:
05/15/2026
Greycroft Growth III, L.P.
Signature:
/s/ Ian Sigalow
Name/Title:
By Greycroft Growth III, LLC, its General Partner, By Ian Sigalow, Managing Partner
