Security key
57064P107
- Security type / class
- Equity / Class A Stock
- Total 13F shares
- 10,513,999
- Total 13F value
- $18,587,471
- Share change
- -688,478
- Put/Call ratio
- 1325%
- SEC-reported price per share
- $1.85
- Number of holders
- 51
- Value change
- -$1,181,610
- Number of buys
- 16
- Number of sells
- 27
- Shares outstanding
- 2,451,529
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2023
Institutions
51
Top holders
10
MKTW full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q3 2025
MARKETWISE, INC. SEC filings
MARKETWISE, INC. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 57064P107
Recent filing periods:
Ownership snapshot
Top reported holders of MKTW - MARKETWISE, INC. - Class A Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Greenhaven Road Investmen...
Disclosed value leader
Greenhaven Road Investmen...
Comparable rows
15/15
Latest evidence
31 Dec 2022
13F
Lead comparable stake: 178%
Showing 1-6 of 15 holder rows.
Quick read
Greenhaven Road Investment Management, L.P. leads the comparable SEC ownership view at 178%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Greenhaven Road Investment Management, L.P.'s linked filing trail.
Comparable ownership
Top 5
Greenhaven Road Investment Manage...
178%
ROYCE & ASSOCIATES LP
49%
BlackRock Finance, Inc.
36%
VANGUARD GROUP INC
30%
Praetorian Capital Management LLC
21%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Greenhaven Road Investment Management, L.P. |
13F
Company
|
178%
|
$7,318,000
4,355,844 shares
|
— | 31 Dec 2022 |
| ROYCE & ASSOCIATES LP |
13F
Company
|
49%
|
$2,035,152
1,211,400 shares
|
— | 31 Dec 2022 |
| BlackRock Finance, Inc. |
13F
Company
|
36%
|
$1,467,250
873,363 shares
|
— | 31 Dec 2022 |
| VANGUARD GROUP INC |
13F
Company
|
30%
|
$1,219,241
725,739 shares
|
— | 31 Dec 2022 |
| Praetorian Capital Management LLC |
13F
Company
|
21%
|
$858,204
510,836 shares
|
— | 31 Dec 2022 |
| Formidable Asset Management, LLC |
13F
Company
|
16%
|
$656,000
394,249 shares
|
— | 31 Dec 2022 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2023
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
51
Shares
10,513,999
Rows available
51
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2023 vs Q3 2025 Across Filers
Q3 2025 holders
0
Q1 2023 holders
51
Holder diff
51
| Investor | Q3 2025 Shares | Q1 2023 Shares | Share Diff | Share Chg % | Q3 2025 value | Q1 2023 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend