Northern Trust
AMTM

Northern Trust’s Amentum Holdings AMTM Stock Holding History

Northern Trust’s Portfolio AMTM Stock Details AMTM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$21.3M Buy
1,029,892
+45,787
+5% +$1.11M ﹤0.01% 1769
2026
Q1 		$25.7M Buy
984,105
+31,128
+3% +$977K ﹤0.01% 1511
2025
Q4 		$27.6M Buy
952,977
+10,032
+1% +$256K ﹤0.01% 1466
2025
Q3 		$22.6M Buy
942,945
+1,912
+0.2% +$46.6K ﹤0.01% 1608
2025
Q2 		$22.2M Buy
941,033
+86,610
+10% +$1.81M ﹤0.01% 1585
2025
Q1 		$15.6M Buy
854,423
+12,204
+1% +$249K ﹤0.01% 1774
2024
Q4 		$17.7M Buy
842,219
+693,706
+467% +$17.9M ﹤0.01% 1774
2024
Q3 		$4.79M Buy
+148,513
New +$4.23M ﹤0.01% 2501

Other funds holding AMTM

AS
American Securities New York $3.75B AUM 23.12% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
FCM
Frontier Capital Management Boston, Massachusetts $10.7B AUM 67.78% 1-Year Est. Return

Northern Trust's AMTM Position: Q2 2026 in Review

Northern Trust increased its Amentum Holdings (AMTM) stake by 4.7% in Q2 2026, buying an estimated $1.11M and bringing the position to 1,029,892 shares worth $21.3M. The position accounts for ﹤0.01% of the portfolio, ranked #1769.

Northern Trust first reported a position in AMTM in Q3 2024 and has held it in 8 quarters since. The position peaked at $27.6M in Q4 2025. 462 funds tracked by Wall St. Rank hold AMTM as of Q2 2026.

  • Northern Trust held 1,029,892 shares of Amentum Holdings worth $21.3M as of Q2 2026.
  • Northern Trust bought 45,787 Amentum Holdings shares in Q2 2026, an estimated $1.11M.
  • Amentum Holdings made up ﹤0.01% of Northern Trust's portfolio in Q2 2026, its #1769 holding.
  • Northern Trust first reported a position in Amentum Holdings in Q3 2024 and has held it in 8 quarters since.
  • Northern Trust's Amentum Holdings position peaked at $27.6M in Q4 2025.
  • 462 funds tracked by Wall St. Rank held Amentum Holdings as of Q2 2026.

Based on Northern Trust's 13F filing for Q2 2026, filed 13 Aug 2026.