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ATI Ownership | Who Owns ATI?

OverviewForecastRevenueFinancialsChartTranscripts

ATI Ownership Summary

ATI is owned by 17.59% institutional investors, 0.87% insiders, and 81.54% retail investors. Capital investors is the largest institutional shareholder, holding 12.27% of ATI shares. iShares Core S&P Small-Cap ETF is the top mutual fund, with 6.39% of its assets in ATI shares.

ATI Ownership Benchmark

TypeName% Inst% Insiders% Retail
StockATI17.59%0.87%81.54%
SectorIndustrials Stocks 46.77%12.62%40.60%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Capital investors17.15M12.27%$1.39B
Blackrock15.54M10.87%$861.91M
Blackrock funding, inc. /de14.86M10.63%$1.21B
Vanguard group13.05M9.34%$1.06B
Capital world investors7.90M5.65%$642.63M
State street6.04M4.32%$491.48M
Fmr4.90M3.50%$398.50M
Capital research global investors3.22M2.31%$262.32M
Invesco3.15M2.25%$256.38M
Dendur capital lp2.69M1.92%$218.74M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Dendur capital lp2.69M22.69%$218.74M
Mountaineer partners management144.02K6.81%$11.71M
Lts one management lp210.00K6.09%$17.08M
Fact capital, lp101.40K4.29%$8.25M
Candelo capital management lp60.90K4.27%$4.95M
Jones road capital management82.70K3.98%$6.73M
Klcm advisors353.84K2.87%$28.78M
Tran capital management289.41K2.81%$23.54M
Bowen hanes1.33M2.71%$108.12M
Sapience investments8.29K2.64%$674.31K

Top Buyers

HolderShares% AssetsChange
Norges bank1.55M0.01%1.55M
Fmr4.90M0.02%1.49M
Capital world investors7.90M0.09%1.08M
Holocene advisors, lp1.53M0.28%929.33K
Rokos capital management llp527.26K0.18%527.26K

Top Sellers

HolderShares% AssetsChange
Blackrock15.54M0.02%-4.54M
Millennium management99.94K0.00%-1.50M
Palestra capital management---1.06M
Fuller & thaler asset management---911.11K
Driehaus capital management---816.69K

New Positions

HolderShares% AssetsChangeValue
Norges bank1.55M0.01%1.55M$85.05M
Rokos capital management llp527.26K0.18%527.26K$42.88M
Scout investments444.31K0.66%444.31K$24.64M
Tran capital management289.41K2.81%289.41K$23.54M
Eagle asset management174.38K0.05%174.38K$9.46M

Sold Out

HolderChange
Stephens consulting-1.00
Newsquare capital-2.00
Tfo-tdc-4.00
Claris advisors, llc / mo /-6.00
Harvest fund management-6.00

Institutional Ownership Trends

DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Sep 30, 2025214-56.33%24,594,902-81.65%170.19%101-58.78%64-64.25%
Jun 30, 202548311.03%133,865,1931.60%950.94%240-2.04%17746.28%
Mar 31, 20254325.11%132,561,794-2.84%1010.90%24413.49%119-8.46%
Dec 31, 2024402-7.37%136,041,2613.73%1051.02%2104.48%127-20.13%
Sep 30, 20244313.61%131,137,187-0.86%1010.90%200-3.85%1593.92%

Top Mutual Funds Shareholders

HolderShares% HoldingChange
iShares Core S&P Small-Cap ETF9.09M6.39%-1.90K
Capital Group Growth Fnd of Amer Comp5.98M4.24%-
American Funds Growth Fund of Amer A5.98M4.24%-
iShares Core S&P Mid-Cap ETF4.59M3.33%-
American Funds SMALLCAP World A4.59M3.25%2.30M
Vanguard Total Stock Mkt Idx Inv4.43M3.22%-101.82K
Vanguard US Total Market Shares ETF3.96M2.81%2.99K
American Funds IS® Asset Allocation 13.76M2.67%-
American Funds AMCAP A3.73M2.65%-
Capital Group AMCAP Composite3.73M2.65%-

Recent Insider Transactions

DateNameRoleActivityValue
Nov 25, 2025Harris Timothy J Senior VP and CDIOSell$1.03M
Nov 21, 2025Busch Tina Killough SVP, CHROSell$242.29K
Nov 18, 2025WETHERBEE ROBERT S Executive ChairmanSell$2.43M
Nov 18, 2025WETHERBEE ROBERT S Executive ChairmanSell$2.67M
Nov 18, 2025WETHERBEE ROBERT S Executive ChairmanSell$805.89K

Insider Transactions Trends

DateBuySell
2025 Q4-10
2025 Q3-7
2025 Q2-9
2025 Q1-1
2024 Q4-4

ATI Ownership FAQ

Who owns the most shares of ATI?

ATI’s largest shareholders are Capital investors (17.15M shares, 12.27%), Blackrock (15.54M shares, 10.87%), and Blackrock funding, inc. /de (14.86M shares, 10.63%). Together, they hold 33.77% of ATI’s total shares outstanding.

Does Blackrock own ATI?

Yes, BlackRock owns 10.87% of ATI, totaling 15.54M shares as of Jun 2024. This represents 0.02% of BlackRock's total assets, with a market value of 861.91M$. In the last quarter, BlackRock decreased its holdings by -4.538M shares, a -22.60% change.

Who is ATI’s biggest shareholder by percentage of total assets invested?

Dendur capital lp is ATI’s biggest shareholder by percentage of total assets invested, with 22.69% of its assets in 2.69M ATI shares, valued at 218.74M$.

Who is the top mutual fund holder of ATI shares?

iShares Core S&P Small-Cap ETF is the top mutual fund holder of ATI shares, with 6.39% of its total shares outstanding invested in 9.09M ATI shares.

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