Comparable stake leader
MASON CAPITAL MANAGEMENT LLC
SEC ownership of Legato Merger Corp.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001820272.
Disclosed value leader
MASON CAPITAL MANAGEMENT LLC
Comparable rows
0/5
Latest evidence
12 Aug 2021
- Parsed ownership sources
-
3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
MASON CAPITAL MANAGEMENT LLC
Ranking: Comparable ownership first, then disclosed value
- Latest parsed ownership date
-
12 Aug 2021
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001820272
- Issuer location
- New York, NY
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
1 signal
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Legato Merger Corp. (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
MASON CAPITAL MANAGEMENT LLC
Disclosed value leader
MASON CAPITAL MANAGEMENT LLC
Comparable rows
0/5
Latest evidence
12 Aug 2021
3/4/5
Highest disclosed value: $72,529,290
5 rows are not safely comparable across share classes.
Quick read
MASON CAPITAL MANAGEMENT LLC has the largest disclosed position value at $72.53M.
0 of 5 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 MASON CAPITAL MANAGEMENT LLC's linked filing trail.
Disclosed position value
Top 5
MASON CAPITAL MANAGEMENT LLC
$72.53M
Eric S. Rosenfeld
$23.56M
Brian Pratt
$20.15M
David Sgro
$14.41M
Adam H. Jaffe
$331.9K
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-5 of 5 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| MASON CAPITAL MANAGEMENT LLC |
3/4/5
10%+ Owner
|
—
mixed-class rows
|
$72,529,290
9,422,304 shares
mixed-class rows
|
— | 12 Aug 2021 |
| Eric S. Rosenfeld |
3/4/5
Chief SPAC Officer
|
—
class O/S missing
|
$23,556,044
2,079,086 shares
|
— | 06 Jul 2021 |
| Brian Pratt |
3/4/5
Director
|
—
class O/S missing
|
$20,148,524
1,778,334 shares
|
— | 06 Jul 2021 |
| David Sgro |
3/4/5
Chief Executive Officer, Director
|
—
class O/S missing
|
$14,410,819
1,271,917 shares
|
— | 06 Jul 2021 |
| Adam H. Jaffe |
3/4/5
Chief Financial Officer
|
—
class O/S missing
|
$331,935
29,297 shares
|
— | 06 Jul 2021 |
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.
Forms 3/4/5 flow
Insider trading overview
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 14 Sep 2025.
Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-5 of 5 reporting-owner rows connected to Legato Merger Corp.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
5
Largest Forms 3/4/5 holder
MASON CAPITAL MANAGEMENT LLC
Net 12M change
$0
Latest report
12 Aug 2021
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| MASON CAPITAL MANAGEMENT LLC | 10%+ Owner | $72,529,290 | Filing P/S | 12 Aug 2021 | ||
| Eric S. Rosenfeld | Chief SPAC Officer | $23,556,044 | Mixed | 06 Jul 2021 | ||
| Brian Pratt | Director | $20,148,524 | Mixed | 06 Jul 2021 | ||
| David Sgro | Chief Executive Officer, Director | $14,410,819 | Mixed | 06 Jul 2021 | ||
| Adam H. Jaffe | Chief Financial Officer | $331,935 | Mixed | 06 Jul 2021 |
Recent insider transactions for Legato Merger Corp.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| No insider transactions were found in the last 12 months for this issuer. | ||||||||||
* marks a reported price that did not pass the local price check.