Company · Ownership research

ATI INC ATI

CIK 0001018963 · CUSIP 01741R102

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

3 CUSIPs are reported under this ticker. This page covers the one most managers report; the others are not merged in.

This page lists the top 20 of 422 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	BlackRock, Inc. CIK 2012383 · View history	$1.06B 15,860,696 shares	0.02%	—	SEC filing ↗ Nov 13, 2024	▾
02	Capital International Investors CIK 1562230 · View history	$1.01B 15,084,379 shares	0.19%	-13.34K(-0.1%)Reduced	SEC filing ↗ Nov 13, 2024	▾
03	VANGUARD GROUP INC CIK 102909 · View history	$890.91M 13,315,096 shares	0.02%	+87.76K(+0.7%)Added	SEC filing ↗ Nov 13, 2024	▾
04	FMR LLC CIK 315066 · View history	$621.02M 9,281,393 shares	0.04%	+2.02M(+27.8%)Added	SEC filing ↗ Nov 13, 2024	▾
05	STATE STREET CORP CIK 93751 · View history	$362.23M 5,413,734 shares	0.01%	-303.29K(-5.3%)Reduced	SEC filing ↗ Nov 14, 2024	▾
06	Invesco Ltd. CIK 914208 · View history	$300.61M 4,492,758 shares	0.06%	+47.20K(+1.1%)Added	SEC filing ↗ Nov 12, 2024	▾
07	Capital World Investors CIK 1422849 · View history	$229.41M 3,428,657 shares	0.04%	+559.78K(+19.5%)Added	SEC filing ↗ Nov 13, 2024	▾
08	AMERIPRISE FINANCIAL INC CIK 820027 · View history	$210.29M 3,142,949 shares	0.05%	-505.96K(-13.9%)Reduced	SEC filing ↗ Nov 14, 2024	▾
09	FRONTIER CAPITAL MANAGEMENT CO LLC CIK 351173 · View history	$208.84M 3,121,211 shares	1.97%	-11.03K(-0.4%)Reduced	SEC filing ↗ Nov 14, 2024	▾
10	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$165.62M 2,475,314 shares	0.04%	-31.30K(-1.2%)Reduced	SEC filing ↗ Nov 7, 2024	▾
11	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$130.71M 1,952,934 shares	0.01%	+5.17K(+0.3%)Added	SEC filing ↗ Nov 12, 2024	▾
12	FEDERATED HERMES, INC. CIK 1056288 · View history	$119.51M 1,786,146 shares	0.26%	+83.50K(+4.9%)Added	SEC filing ↗ Nov 13, 2024	▾
13	NORGES BANK CIK 1374170 · Amended · View history	$119.28M 1,782,688 shares	0.02%	+227.19K(+14.6%)Added	SEC filing ↗ Nov 13, 2024	▾
14	MORGAN STANLEY CIK 895421 · Amended · View history	$113.77M 1,700,310 shares	0.01%	-62.71K(-3.6%)Reduced	SEC filing ↗ May 14, 2025	▾
15	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$106.72M 1,595,016 shares	0.09%	-349.90K(-18.0%)Reduced	SEC filing ↗ Nov 14, 2024	▾
16	Channing Capital Management, LLC CIK 1302404 · View history	$96.85M 1,447,484 shares	2.48%	-6.49K(-0.4%)Reduced	SEC filing ↗ Nov 13, 2024	▾
17	CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history	$91.75M 1,371,239 shares	0.02%	+24.22K(+1.8%)Added	SEC filing ↗ Nov 12, 2024	▾
18	BOWEN HANES & CO INC CIK 1077583 · View history	$91.34M 1,365,180 shares	2.40%	-18.25K(-1.3%)Reduced	SEC filing ↗ Nov 12, 2024	▾
19	BARROW HANLEY MEWHINNEY & STRAUSS LLC CIK 313028 · View history	$90.97M 1,359,570 shares	0.30%	-7.28K(-0.5%)Reduced	SEC filing ↗ Nov 13, 2024	▾
20	LOOMIS SAYLES & CO L P CIK 312348 · View history	$86.79M 1,297,155 shares	0.11%	-219.78K(-14.5%)Reduced	SEC filing ↗ Nov 13, 2024	▾

Showing 20 / 422 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

422

Cancelled or null records excluded

Disclosed shares

132,940,202

Not deduplicated across managers

Disclosed value

$8.89B

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

ATI INC · Q3 2024

Explore all 422 reporting institutions.

This page includes 20 of 422 reporting institutions. Sign in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

Download CSV
Earlier quarters
Advanced screening & filtering
API & AI access

Already have an account?

＋ New accounts get free API credits to explore data beyond ownership filings.

For AI agents & developers

The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 422 reporting institutions; totals use the complete disclosed data.

Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP.

MCP  https://api.akkrudata.ai/mcp

get_institutional_security_holders
{"cusip":"01741R102","quarter":"2024Q3","type":"positions","page_size":100}

Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.

MCP endpoint: https://api.akkrudata.ai/mcp
API / MCP documentation: /documents
llms.txt: /llms.txt

Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.