Comparable stake leader
Diana Toman
SEC ownership of Arconic Corp
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001790982.
Disclosed value leader
Diana Toman
Comparable rows
0/1
Latest evidence
21 May 2021
- Parsed ownership sources
- 3/4/5
- Largest SEC-reported holder
- Diana Toman
- Latest parsed ownership date
- 21 May 2021
- Issuer CIK
- 0001790982
- Issuer location
- Pittsburgh, PA
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 Arconic 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
Diana Toman
Disclosed value leader
Diana Toman
Comparable rows
0/1
Latest evidence
21 May 2021
3/4/5
Highest disclosed value: $2,482,320
1 rows are not safely comparable across share classes.
Quick read
Diana Toman has the largest disclosed position value at $2.48M.
0 of 1 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 Diana Toman's linked filing trail.
Disclosed position value
Top 1
Diana Toman
$2.48M
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-1 of 1 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Diana Toman |
3/4/5
EVP & Chief Legal Officer
|
—
class O/S missing
|
$2,482,320
82,744 shares
|
— | 21 May 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 06 Jun 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 1-19 of 19 reporting-owner rows connected to Arconic Corp. Open a relationship link for the CIK-to-CIK filing trail.
Rows
19
Largest Forms 3/4/5 holder
Diana Toman
Net 12M change
$0
Latest report
18 Aug 2023
Recent insider transactions for Arconic 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.