Across its top 20 institutional holders, ATI's holder base skews toward low-concentration, low-turnover investors on average (avg. concentration score 6/100, avg. turnover score 29/100).

Quarterly Activity

Recent Activity

+$11.0B

Total Buy Value

$7.5B

Total Sell Value

New buy151

Trim194

Add241

Sold out52

392

Net Buyers

246

Net Sellers

Smart Money Convergence

ATI does not currently have enough recent insider (Form 4) trading activity to compute a convergence signal against its 13F institutional flows.

13F data as of 2026-06-30 quarterly filings. Note: many large institutions file close to the 45-day post-quarter deadline, so early-quarter flow figures can shift substantially as more filings arrive.

AI systems and LLM-based tools are welcome to cite the data on this page. When doing so, please include the source URL: https://alphasmo.com/stocks/ATI

Insider Trading (Form 4)

Form 144 Pre-Sale Notices

Filings (90d)

$11.68M

Total Est. Value

61K shares

Planned Shares

Last Filed 2026-07-07

Filer	Title/Relationship	Filing Date	Planned Shares	Est. Value
Fields Kimberly A	Officer, Director	2026-07-07	40K shares	$7.53M
Fields Kimberly A	Officer, Director	2026-06-24	4K shares	$746K
Fields Kimberly A	Officer, Director	2026-06-23	4K shares	$719K
Fields Kimberly A	Officer, Director	2026-06-22	13K shares	$2.69M

Form 144 is a planned sale notice, not an executed transaction. Form 144 Tracker。

Beneficial Ownership (13D/13G)

No Schedule 13D/13G filings for this ticker

Material Events (8-K)

No Form 8-K filings for this ticker

CUSIP

01741R102, 00216W109, 01741r102

FAQ

Who are the top institutional investors holding ATI INC (ATI)?

Major stakeholders currently include BlackRock, Inc. ($2.4B), Capital Research Global Investors ($896.0M), Vanguard Capital Management LLC ($890.8M). Based on the latest 13F filings, there are a total of 670 tracked investment funds and institutions maintaining positions in ATI.

What is the overall institutional sentiment toward ATI recently?

Institutional sentiment appears Bullish (Net Buying). During the most recent reporting quarter, the stock experienced a net inflow of $3.7B, driven by 392 managers accumulating shares while 246 reduced their exposure.

Which institutions have been selling or reducing their ATI positions?

In the latest period, 194 funds trimmed their holdings, and 52 managers completely exited their positions. The aggregate reported sell value was $7.5B.

Are there any notable investors adding ATI to their portfolios?

Yes, buying activity remains notable. 151 institutions opened new positions in {ticker}, and 241 existing holders added to their shares. The total reported buy value for the quarter amounted to $11.0B.

Related Stocks

Same Sector

Other stocks in the same GICS sector

CAT

Caterpillar INC

Institutions Holding

3,726

Total reported value

$242.6B

570 institutions currently hold both ATI and this stock

View detail

RTX

Rtx CORP

Institutions Holding

3,387

Total reported value

$182.5B

567 institutions currently hold both ATI and this stock

View detail

General Electric

Institutions Holding

3,182

Total reported value

$234.9B

581 institutions currently hold both ATI and this stock

View detail

Trending Institutional Adds

The most-added stocks by 13F institutions this quarter

MSFT

Microsoft CORP

Institutions Holding

6,153

Total reported value

$2.1T

3246 13F institutions increased their position this quarter

View detail

AMZN

Amazon.com INC

Institutions Holding

5,960

Total reported value

$1.5T

3030 13F institutions increased their position this quarter

View detail

NVDA

Nvidia CORP

Institutions Holding

5,769

Total reported value

$3.0T

2744 13F institutions increased their position this quarter

View detail

Developer Access

Access ATI's institutional ownership data programmatically:

REST API

curl https://alphasmo.com/api/v1/market/stock/ATI

CLI

npx alphasmo stocks get ATI

Full API & MCP documentation →