CFM
AMTM

Cornerstone Financial Management’s Amentum Holdings AMTM Stock Holding History

Cornerstone Financial 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 		– Sell
-16
Closed -$417 – 1560
2026
Q1 		$417 Buy
+16
New +$502 ﹤0.01% 1269

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
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
TCA
Troluce Capital Advisors Dorado, Puerto Rico $971M AUM 2.27% 1-Year Est. Return

Cornerstone Financial Management's AMTM Position: Q2 2026 in Review

Cornerstone Financial Management sold out of Amentum Holdings (AMTM) in Q2 2026, closing a stake of 16 shares — an estimated $417 sold.

Cornerstone Financial Management first reported a position in AMTM in Q1 2026 and held it in 1 quarter. The position peaked at $417 in Q1 2026. 458 funds tracked by Wall St. Rank hold AMTM as of Q2 2026.

  • Cornerstone Financial Management reported no remaining Amentum Holdings position as of Q2 2026 after selling out during the quarter.
  • Cornerstone Financial Management sold 16 Amentum Holdings shares in Q2 2026, an estimated $417.
  • Cornerstone Financial Management first reported a position in Amentum Holdings in Q1 2026 and held it in 1 quarter.
  • Cornerstone Financial Management's Amentum Holdings position peaked at $417 in Q1 2026.
  • 458 funds tracked by Wall St. Rank held Amentum Holdings as of Q2 2026.

Based on Cornerstone Financial Management's 13F filing for Q2 2026, filed 12 Aug 2026.