Wellington Management Group
ATI icon

Wellington Management Group’s ATI ATI Stock Holding History

Wellington Management Group’s Portfolio ATI Stock Details ATI Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2018
Q1 		– Sell
-903
Closed -$591K – 2194
2017
Q4 		$591K Buy
903
+8
+0.9% +$190 ﹤0.01% 2010
2017
Q3 		$604K Buy
+895
New +$17.7K ﹤0.01% 2006

Other funds holding ATI

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Capital International Investors
Capital International Investors Los Angeles, California $427B AUM 29.17% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Capital World Investors
Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Viking Global Investors
Viking Global Investors Stamford, Connecticut $35.7B AUM 21.3% 1-Year Est. Return

Wellington Management Group's ATI Position: Q1 2026 in Review

Wellington Management Group reduced its ATI (ATI) stake by 80% in Q1 2026, selling an estimated $42M and leaving 75,745 shares worth $11M. The position accounts for ﹤0.01% of the portfolio, ranked #1213.

Wellington Management Group first reported a position in ATI in Q2 2013 and has held it in 48 quarters since. The position peaked at $152M in Q1 2014. 674 funds tracked by Wall St. Rank hold ATI as of Q1 2026.

  • Wellington Management Group held 75,745 shares of ATI worth $11M as of Q1 2026.
  • Wellington Management Group sold 301,613 ATI shares in Q1 2026, an estimated $42M.
  • ATI made up ﹤0.01% of Wellington Management Group's portfolio in Q1 2026, its #1213 holding.
  • Wellington Management Group first reported a position in ATI in Q2 2013 and has held it in 48 quarters since.
  • Wellington Management Group's ATI position peaked at $152M in Q1 2014.
  • 674 funds tracked by Wall St. Rank held ATI as of Q1 2026.

Based on Wellington Management Group's 13F filing for Q1 2026, filed 15 May 2026.