Vanguard Capital Management
AMTM

Vanguard Capital Management’s Amentum Holdings AMTM Stock Holding History

Vanguard Capital Management’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 		$139M Buy
6,711,987
+61,108
+0.9% +$1.48M ﹤0.01% 1363
2026
Q1 		$173M Buy
+6,650,879
New +$209M ﹤0.01% 1144

Other funds holding AMTM

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
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
TCA
Troluce Capital Advisors Dorado, Puerto Rico $971M AUM 2.27% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Vanguard Capital Management's AMTM Position: Q2 2026 in Review

Vanguard Capital Management increased its Amentum Holdings (AMTM) stake by 0.92% in Q2 2026, buying an estimated $1.48M and bringing the position to 6,711,987 shares worth $139M. The position accounts for ﹤0.01% of the portfolio, ranked #1363.

Vanguard Capital Management first reported a position in AMTM in Q1 2026 and has held it in 2 quarters since. The position peaked at $173M in Q1 2026. 455 funds tracked by Wall St. Rank hold AMTM as of Q2 2026.

  • Vanguard Capital Management held 6,711,987 shares of Amentum Holdings worth $139M as of Q2 2026.
  • Vanguard Capital Management bought 61,108 Amentum Holdings shares in Q2 2026, an estimated $1.48M.
  • Amentum Holdings made up ﹤0.01% of Vanguard Capital Management's portfolio in Q2 2026, its #1363 holding.
  • Vanguard Capital Management first reported a position in Amentum Holdings in Q1 2026 and has held it in 2 quarters since.
  • Vanguard Capital Management's Amentum Holdings position peaked at $173M in Q1 2026.
  • 455 funds tracked by Wall St. Rank held Amentum Holdings as of Q2 2026.

Based on Vanguard Capital Management's 13F filing for Q2 2026, filed 13 Aug 2026.