Vault-13

ATI INC ATI

COM · Common Stock · CUSIP 01741R102 · ISIN US01741R1023

293 institutional holders
130,869,127130.9m shares reported held*
101.1% of all shares outstanding*
$3.5bnreported value*

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($10.0m this quarter). Holder counts are more reliable. Shares outstanding: 129.4m as of 2022-10-14, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $26.62. Options: 14 managers hold calls ($42.5m notional), 11 hold puts ($16.1m).

Biggest calls

PEAK6 Investments LLC — $7.6m285.7k shares
CITADEL ADVISORS LLC — $6.9m260.8k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP — $5.3m200.9k shares
Jefferies Group LLC — $5.3m200.0k shares
D. E. Shaw & Co., Inc. — $5.3m198.1k shares
JANE STREET GROUP, LLC — $3.7m139.3k shares
Caption Management, LLC — $2.7m100.0k shares
WOLVERINE ASSET MANAGEMENT LLC — $1.7m65.3k shares
Walleye Trading LLC — $1.3m48.8k shares
SIMPLEX TRADING, LLC — $1.2m44.0k shares

Biggest puts

HSBC HOLDINGS PLC — $6.8m250.5k shares
WOLVERINE ASSET MANAGEMENT LLC — $2.7m100.0k shares
CITADEL ADVISORS LLC — $1.9m72.3k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP — $1.8m67.7k shares
TWO SIGMA INVESTMENTS, LP — $1.3m50.0k shares
WOLVERINE TRADING, LLC — $971.0k35.2k shares
JANE STREET GROUP, LLC — $245.0k9.2k shares
Walleye Trading LLC — $192.0k7.2k shares
GROUP ONE TRADING LLC — $98.0k3.7k shares
SIMPLEX TRADING, LLC — $95.0k3.6k shares

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
BlackRock, Inc. 13G · institution +1.8 pts · filed 2026-10-27 11.9% +1.8 pts 16.2m≈ $3.2bn 2026-10-27
VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-29 5.2% new 7.1m≈ $1.4bn 2026-04-29

Fell to 5% or below in the last year: Capital World Investors (4.2%, 2026-05-14), Capital International Investors (4.5%, 2026-04-07), VANGUARD GROUP INC (0.0%, 2026-03-26; now reported by VANGUARD CAPITAL MANAGEMENT LLC)

Insider purchases and sales in Q3 2022

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

Officers and directors buying vs selling

Number of people, by quarter (10% owners not included)

BuyingSelling
404Q4 20: 0 buyingQ4 20: 0 sellingQ1 21: 0 buyingQ1 21: 0 sellingQ1 21Q2 21: 0 buyingQ2 21: 0 sellingQ3 21: 0 buyingQ3 21: 0 sellingQ3 21Q4 21: 0 buyingQ4 21: 0 sellingQ1 22: 0 buyingQ1 22: 1 sellingQ1 22Q2 22: 0 buyingQ2 22: 2 sellingQ3 22: 0 buyingQ3 22: 3 sellingQ3 22
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q4 20200—0——
Q1 20210—0——
Q2 20210—0——
Q3 20210—0——
Q4 20210—0——
Q1 20220—1$270.0k—
Q2 20220—2$326.0k—
Q3 20220—3$848.9k—
DateInsiderTradeSharesPrice ValueTheir holding
2022-09-12 Schwartz Karl D VP, Controller & CAO Sold 1,000 $31.32 $31.3k1.0k shares -2%
2022-09-01 WETHERBEE ROBERT S Board Chair, President and CEO, director Sold 15,000 $29.09 $436.4k15.0k shares -4%
2022-08-11 Schwartz Karl D VP, Controller & CAO Sold 1,000 $31.22 $31.2k1.0k shares -2%
2022-07-28 Schwartz Karl D VP, Controller & CAO Sold 2,000 $25.00 $50.0k2.0k shares -3%
2022-07-19 DIGGS JAMES C Director Sold 12,500 $24.00 $300.0k12.5k shares -21%

Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).

Holders, Q3 2022

#ManagerLocationShares Value% of their portfolioChangeShares change
1 BlackRock Inc. 0.02% of their portfolio New York, NY 20,397,88820.4m $542.8m $542.8m 0.02% —
2 VANGUARD GROUP INC 0.01% of their portfolio Valley Forge, PA 14,354,40114.4m $382.0m $382.0m 0.01% —
3 Capital International Investors 0.09% of their portfolio Los Angeles, CA 11,822,55011.8m $314.6m $314.6m 0.09% —
4 ALLIANCEBERNSTEIN L.P. 0.10% of their portfolio NASHVILLE, TN 7,409,1237.4m $197.2m $197.2m 0.10% —
5 STATE STREET CORP 0.01% of their portfolio BOSTON, MA 6,713,3626.7m $178.6m $178.6m 0.01% —
6 D. E. Shaw & Co., Inc. 0.16% of their portfolio New York, NY 3,397,0973.4m $90.4m $90.4m 0.16% —
7 AMERIPRISE FINANCIAL INC 0.03% of their portfolio MINNEAPOLIS, MN 3,143,6013.1m $83.7m $83.7m 0.03% —
8 Channing Capital Management, LLC 2.57% of their portfolio Chicago, IL 2,792,2972.8m $74.3m $74.3m 2.57% —
9 DIMENSIONAL FUND ADVISORS LP 0.03% of their portfolio AUSTIN, TX 2,778,2392.8m $73.9m $73.9m 0.03% —
10 Fisher Asset Management, LLC 0.05% of their portfolio PLANO, TX 2,516,7632.5m $67.0m $67.0m 0.05% —
11 GOLDMAN SACHS GROUP INC 0.02% of their portfolio NEW YORK, NY 2,451,6582.5m $65.2m $65.2m 0.02% —
12 BARROW HANLEY MEWHINNEY & STRAUSS LLC 0.27% of their portfolio DALLAS, TX 2,430,6622.4m $64.7m $64.7m 0.27% —
13 Driehaus Capital Management LLC 0.91% of their portfolio Chicago, IL 2,266,4892.3m $60.3m $60.3m 0.91% —
14 GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio BOSTON, MA 2,174,9822.2m $57.9m $57.9m 0.01% —
15 BOWEN HANES & CO INC 1.54% of their portfolio PONTE VEDRA BEACH, FL 1,494,1651.5m $39.8m $39.8m 1.54% —
16 FRONTIER CAPITAL MANAGEMENT CO LLC 0.46% of their portfolio Boston, MA 1,482,9621.5m $39.5m $39.5m 0.46% —
17 Assenagon Asset Management S.A. 0.17% of their portfolio SENNINGERBERG, N4 1,479,7261.5m $39.4m $39.4m 0.17% —
18 Capital International, Inc./CA/ 0.85% of their portfolio Los Angeles, CA 1,429,8101.4m $38.0m $38.0m 0.85% —
19 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio SAN FRANCISCO, CA 1,350,9271.4m $35.9m $35.9m 0.01% —
20 Capital World Investors 0.01% of their portfolio LOS ANGELES, CA 1,350,0001.4m $35.9m $35.9m 0.01% —
21 NEUBERGER BERMAN GROUP LLC 0.04% of their portfolio NEW YORK, NY 1,330,2031.3m $35.4m $35.4m 0.04% —
22 Bank of New York Mellon Corp 0.01% of their portfolio NEW YORK, NY 1,288,0921.3m $34.3m $34.3m 0.01% —
23 NORTHERN TRUST CORP 0.01% of their portfolio CHICAGO, IL 1,275,4891.3m $33.9m $33.9m 0.01% —
24 FMR LLC 0.00% of their portfolio BOSTON, MA 1,256,1291.3m $33.4m $33.4m 0.00% —
25 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 1,232,1781.2m $32.8m $32.8m 0.00% —
26 KLCM Advisors, Inc. 7.43% of their portfolio MILWAUKEE, WI 1,189,4991.2m $31.7m $31.7m 7.43% —
27 NORGES BANK 0.01% of their portfolio OSLO, Q8 1,138,5231.1m $30.3m $30.3m 0.01% —
28 MILLENNIUM MANAGEMENT LLC 0.04% of their portfolio NEW YORK, NY 1,105,9221.1m $29.4m $29.4m 0.04% —
29 Mirae Asset Global Investments Co., Ltd. 0.08% of their portfolio SEOUL, M5 1,060,4761.1m $28.2m $28.2m 0.08% —
30 FEDERATED HERMES, INC. 0.08% of their portfolio PITTSBURGH, PA 1,056,5451.1m $28.1m $28.1m 0.08% —
31 MACQUARIE GROUP LTD 0.03% of their portfolio Sydney, NSW 2000, C3 1,036,4321.0m $27.6m $27.6m 0.03% —
32 SASCO CAPITAL INC / CT/ 3.46% of their portfolio FAIRFIELD, CT 872,876872.9k $23.2m $23.2m 3.46% —
33 Invesco Ltd. 0.01% of their portfolio ATLANTA, GA 852,662852.7k $22.7m $22.7m 0.01% —
34 KENSICO CAPITAL MANAGEMENT CORP 1.14% of their portfolio GREENWICH, CT 830,000830.0k $22.1m $22.1m 1.14% —
35 CITADEL ADVISORS LLC 0.03% of their portfolio MIAMI, FL 828,157828.2k $22.0m $22.0m 0.03% —
36 PRINCIPAL FINANCIAL GROUP INC 0.02% of their portfolio DES MOINES, IA 804,655804.7k $21.4m $21.4m 0.02% —
37 Schonfeld Strategic Advisors LLC 0.17% of their portfolio NEW YORK, NY 748,132748.1k $19.9m $19.9m 0.17% —
38 AMERICAN CENTURY COMPANIES INC 0.02% of their portfolio KANSAS CITY, MO 650,163650.2k $17.3m $17.3m 0.02% —
39 Balyasny Asset Management L.P. 0.06% of their portfolio Chicago, IL 619,116619.1k $16.5m $16.5m 0.06% —
40 VICTORY CAPITAL MANAGEMENT INC 0.02% of their portfolio San Antonio, TX 612,422612.4k $16.3m $16.3m 0.02% —
41 NEW YORK STATE COMMON RETIREMENT FUND 0.02% of their portfolio ALBANY, NY 612,148612.1k $16.3m $16.3m 0.02% —
42 RENAISSANCE TECHNOLOGIES LLC 0.02% of their portfolio NEW YORK, NY 574,692574.7k $15.3m $15.3m 0.02% —
43 ROYCE & ASSOCIATES LP 0.16% of their portfolio New York, NY 547,939547.9k $14.6m $14.6m 0.16% —
44 GAMCO INVESTORS, INC. ET AL 0.16% of their portfolio GREENWICH, CT 524,200524.2k $13.9m $13.9m 0.16% —
45 VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.07% of their portfolio JUPITER, FL 515,267515.3k $13.7m $13.7m 0.07% —
46 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 497,495497.5k $13.2m $13.2m 0.00% —
47 CITIGROUP INC 0.02% of their portfolio NEW YORK, NY 479,285479.3k $12.8m $12.8m 0.02% —
48 Nuveen Asset Management, LLC 0.00% of their portfolio CHICAGO, IL 435,774435.8k $11.6m $11.6m 0.00% —
49 KENNEDY CAPITAL MANAGEMENT LLC 0.32% of their portfolio ST LOUIS, MO 414,469414.5k $11.0m $11.0m 0.32% —
50 HSBC HOLDINGS PLC 0.02% of their portfolio LONDON, X0 406,373406.4k $11.0m $11.0m 0.02% —
51 DEUTSCHE BANK AG\ 0.01% of their portfolio FRANKFURT AM MAIN, 2M 391,903391.9k $10.4m $10.4m 0.01% —
52 Legal & General Group Plc 0.00% of their portfolio London, X0 374,329374.3k $10.0m $10.0m 0.00% —
53 RHUMBLINE ADVISERS 0.01% of their portfolio BOSTON, MA 368,663368.7k $9.8m $9.8m 0.01% —
54 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 362,437362.4k $9.6m $9.6m 0.00% —
55 BNP PARIBAS FINANCIAL MARKETS 0.02% of their portfolio PARIS, I0 321,828321.8k $8.6m $8.6m 0.02% —
56 Centre Asset Management, LLC 2.33% of their portfolio NEW YORK, NY 317,498317.5k $8.4m $8.4m 2.33% —
57 Mesirow Institutional Investment Management, Inc. 1.19% of their portfolio CHICAGO, IL 307,981308.0k $8.2m $8.2m 1.19% —
58 WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio Boston, MA 304,871304.9k $8.1m $8.1m 0.00% —
59 Swiss National Bank 0.01% of their portfolio ZURICH, V8 294,400294.4k $7.8m $7.8m 0.01% —
60 TWO SIGMA INVESTMENTS, LP 0.03% of their portfolio NEW YORK, NY 287,573287.6k $7.7m $7.7m 0.03% —
61 CASTLEARK MANAGEMENT LLC 0.39% of their portfolio CHICAGO, IL 266,560266.6k $7.1m $7.1m 0.39% —
62 Sapience Investments, LLC 1.38% of their portfolio Irvine, CA 246,627246.6k $6.6m $6.6m 1.38% —
63 Public Sector Pension Investment Board 0.05% of their portfolio MONTREAL, A8 238,113238.1k $6.3m $6.3m 0.05% —
64 Weiss Multi-Strategy Advisers LLC 0.16% of their portfolio NEW YORK, NY 221,955222.0k $5.9m $5.9m 0.16% —
65 Cubist Systematic Strategies, LLC 0.04% of their portfolio STAMFORD, CT 219,619219.6k $5.8m $5.8m 0.04% —
66 Point72 Asset Management, L.P. 0.03% of their portfolio STAMFORD, CT 218,009218.0k $5.8m $5.8m 0.03% —
67 Mountaineer Partners Management, LLC 7.08% of their portfolio New York, NY 210,507210.5k $5.6m $5.6m 7.08% —
68 Qube Research & Technologies Ltd 0.03% of their portfolio LONDON, X0 201,747201.7k $5.4m $5.4m 0.03% —
69 WS MANAGEMENT LLLP 0.95% of their portfolio JACKSONVILLE, FL 200,000200.0k $5.3m $5.3m 0.95% —
70 STATE OF WISCONSIN INVESTMENT BOARD 0.02% of their portfolio MADISON, WI 198,838198.8k $5.3m $5.3m 0.02% —
71 SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.08% of their portfolio BALA CYNWYD, PA 186,400186.4k $5.0m $5.0m 0.08% —
72 NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio ALBANY, NY 181,741181.7k $4.8m $4.8m 0.01% —
73 California Public Employees Retirement System 0.00% of their portfolio Sacramento, CA 164,644164.6k $4.4m $4.4m 0.00% —
74 NorthRock Partners, LLC 0.50% of their portfolio MINNEAPOLIS, MN 163,211163.2k $4.3m $4.3m 0.50% —
75 Focus Partners Advisor Solutions, LLC 0.25% of their portfolio SAINT LOUIS, MO 160,007160.0k $4.3m $4.3m 0.25% —
76 MOORE CAPITAL MANAGEMENT, LP 0.12% of their portfolio NEW YORK, NY 159,191159.2k $4.2m $4.2m 0.12% —
77 BANK OF MONTREAL /CAN/ 0.00% of their portfolio TORONTO, A6 158,703158.7k $4.8m $4.8m 0.00% —
78 Edgestream Partners, L.P. 0.32% of their portfolio Princeton, NJ 157,472157.5k $4.2m $4.2m 0.32% —
79 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio WEST SACRAMENTO, CA 155,833155.8k $4.1m $4.1m 0.01% —
80 CANADA LIFE ASSURANCE Co 0.01% of their portfolio WINNIPEG, A2 144,249144.2k $3.8m $3.8m 0.01% —
81 WEDGE CAPITAL MANAGEMENT L L P/NC 0.06% of their portfolio CHARLOTTE, NC 143,511143.5k $3.8m $3.8m 0.06% —
82 COMERICA BANK 0.03% of their portfolio DALLAS, TX 141,476141.5k $4.1m $4.1m 0.03% —
83 PRUDENTIAL FINANCIAL INC 0.01% of their portfolio NEWARK, NJ 135,899135.9k $3.0m $3.0m 0.01% —
84 Thrivent Financial for Lutherans 0.01% of their portfolio Minneapolis, MN 134,282134.3k $3.6m $3.6m 0.01% —
85 VAN ECK ASSOCIATES CORP 0.01% of their portfolio NEW YORK, NY 125,289125.3k $3.3m $3.3m 0.01% —
86 PDT Partners, LLC 0.49% of their portfolio New York, NY 122,814122.8k $3.3m $3.3m 0.49% —
87 COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS 0.03% of their portfolio HARRISBURG, PA 118,357118.4k $3.1m $3.1m 0.03% —
88 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio NEW YORK, NY 105,333105.3k $2.8m $2.8m 0.00% —
89 CREDIT SUISSE AG/ 0.00% of their portfolio ZURICH, V8 105,138105.1k $2.8m $2.8m 0.00% —
90 YOUSIF CAPITAL MANAGEMENT, LLC 0.04% of their portfolio BLOOMFIELD HILLS, MI 104,580104.6k $2.8m $2.8m 0.04% —
91 Verition Fund Management LLC 0.02% of their portfolio GREENWICH, CT 95,64695.6k $2.5m $2.5m 0.02% —
92 DUALITY ADVISERS, LP 0.28% of their portfolio MIAMI, FL 94,98095.0k $2.5m $2.5m 0.28% —
93 CoreCommodity Management, LLC 0.92% of their portfolio STAMFORD, CT 94,80894.8k $2.5m $2.5m 0.92% —
94 TEXAS PERMANENT SCHOOL FUND CORP 0.04% of their portfolio AUSTIN, TX 93,42593.4k $2.5m $2.5m 0.04% —
95 FARMERS & MERCHANTS INVESTMENTS INC 0.11% of their portfolio LINCOLN, NE 92,42392.4k $2.5m $2.5m 0.11% —
96 NATIXIS 0.01% of their portfolio PARIS, I0 91,21791.2k $2.4m $2.4m 0.01% —
97 State of Alaska, Department of Revenue 0.03% of their portfolio JUNEAU, AK 89,98490.0k $2.4m $2.4m 0.03% —
98 ADAGE CAPITAL PARTNERS GP, L.L.C. 0.01% of their portfolio Boston, MA 89,27589.3k $2.4m $2.4m 0.01% —
99 LOS ANGELES CAPITAL MANAGEMENT LLC 0.01% of their portfolio LOS ANGELES, CA 83,98784.0k $2.2m $2.2m 0.01% —
100 Quantbot Technologies LP 0.16% of their portfolio NEW YORK, NY 80,75380.8k $2.1m $2.1m 0.16% —