HPC
AMTM

HM Payson & Co’s Amentum Holdings AMTM Stock Holding History

HM Payson & Co’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 		$25.3K Sell
1,226
-715
-37% -$17.3K ﹤0.01% 831
2026
Q1 		$50.6K Hold
1,941
– – ﹤0.01% 681
2025
Q4 		$56.3K Buy
1,941
+715
+58% +$18.3K ﹤0.01% 676
2025
Q3 		$29.4K Hold
1,226
– – ﹤0.01% 779
2025
Q2 		$28.9K Buy
1,226
+47
+4% +$982 ﹤0.01% 733
2025
Q1 		$21.5K Hold
1,179
– – ﹤0.01% 779
2024
Q4 		$24.8K Sell
1,179
-1
-0.1% -$26 ﹤0.01% 749
2024
Q3 		$38.1K Buy
+1,180
New +$33.6K ﹤0.01% 674

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

HM Payson & Co's AMTM Position: Q2 2026 in Review

HM Payson & Co reduced its Amentum Holdings (AMTM) stake by 37% in Q2 2026, selling an estimated $17.3K and leaving 1,226 shares worth $25.3K. The position accounts for ﹤0.01% of the portfolio, ranked #831.

HM Payson & Co first reported a position in AMTM in Q3 2024 and has held it in 8 quarters since. The position peaked at $56.3K in Q4 2025. 462 funds tracked by Wall St. Rank hold AMTM as of Q2 2026.

  • HM Payson & Co held 1,226 shares of Amentum Holdings worth $25.3K as of Q2 2026.
  • HM Payson & Co sold 715 Amentum Holdings shares in Q2 2026, an estimated $17.3K.
  • Amentum Holdings made up ﹤0.01% of HM Payson & Co's portfolio in Q2 2026, its #831 holding.
  • HM Payson & Co first reported a position in Amentum Holdings in Q3 2024 and has held it in 8 quarters since.
  • HM Payson & Co's Amentum Holdings position peaked at $56.3K in Q4 2025.
  • 462 funds tracked by Wall St. Rank held Amentum Holdings as of Q2 2026.

Based on HM Payson & Co's 13F filing for Q2 2026, filed 17 Jul 2026.