Security key
01741R102
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 132,777,336
- Total 13F value
- $2,208,300,713
- Share change
- +89,198
- Put/Call ratio
- 29%
- SEC-reported price per share
- $16.63
- Number of holders
- 228
- Value change
- -$3,372,398
- Number of buys
- 96
- Number of sells
- 113
- Shares outstanding
- 136,021,076
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
Q3 2021
Institutions
228
Top holders
10
ATI full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q3 2026
ATI INC SEC filings
ATI INC company facts
Broader feeds
Reporting periods
Holder history for CUSIP 01741R102
Recent filing periods:
Ownership snapshot
Top reported holders of ATI - ATI INC - Common 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
BlackRock Finance, Inc.
Disclosed value leader
BlackRock Finance, Inc.
Comparable rows
0/15
Latest evidence
30 Jun 2021
13F
Highest disclosed value: $427,886,000
15 rows are not safely comparable across share classes.
Showing 1-6 of 15 holder rows.
Quick read
BlackRock Finance, Inc. has the largest disclosed position value at $427.89M.
0 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 BlackRock Finance, Inc.'s linked filing trail.
Disclosed position value
Top 5
BlackRock Finance, Inc.
$427.89M
VANGUARD GROUP INC
$286.13M
Capital International Investors
$224.7M
STATE STREET CORP
$180.57M
DIMENSIONAL FUND ADVISORS LP
$134.56M
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock Finance, Inc. |
13F
Company
|
—
denominator unverified
|
$427,886,000
20,522,059 shares
|
— | 30 Jun 2021 |
| VANGUARD GROUP INC |
13F
Company
|
—
denominator unverified
|
$286,129,000
13,723,243 shares
|
— | 30 Jun 2021 |
| Capital International Investors |
13F
Company
|
—
denominator unverified
|
$224,695,000
10,776,721 shares
|
— | 30 Jun 2021 |
| STATE STREET CORP |
13F
Company
|
—
denominator unverified
|
$180,574,000
8,660,621 shares
|
— | 30 Jun 2021 |
| DIMENSIONAL FUND ADVISORS LP |
13F
Company
|
—
denominator unverified
|
$134,565,000
6,454,128 shares
|
— | 30 Jun 2021 |
| Channing Capital Management, LLC |
13F
Company
|
—
denominator unverified
|
$90,164,000
4,324,409 shares
|
— | 30 Jun 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.
13F holder rows
Institutional holders as of Q3 2021
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
228
Shares
132,777,336
Rows available
228
| 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 Q3 2021 vs Q2 2021 Across Filers
Q2 2021 holders
230
Q3 2021 holders
228
Holder diff
-2
| Investor | Q2 2021 Shares | Q3 2021 Shares | Share Diff | Share Chg % | Q2 2021 value | Q3 2021 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend