Costello Asset Management’s Amentum Holdings AMTM Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q2
$21 Hold
1
﹤0.01% 710
2026
Q1
$26 Hold
1
﹤0.01% 683
2025
Q4
$29 Hold
1
﹤0.01% 691
2025
Q3
$24 Sell
1
-12
-92% -$292 ﹤0.01% 664
2025
Q2
$307 Buy
+13
New +$272 ﹤0.01% 675

Other funds holding AMTM

Costello Asset Management's AMTM Position: Q2 2026 in Review

Costello Asset Management held its Amentum Holdings (AMTM) position steady in Q2 2026 at 1 share worth $21. The position accounts for ﹤0.01% of the portfolio, ranked #710.

Costello Asset Management first reported a position in AMTM in Q2 2025 and has held it in 5 quarters since. The position peaked at $307 in Q2 2025. 206 funds tracked by Wall St. Rank hold AMTM as of Q2 2026.

  • Costello Asset Management held 1 share of Amentum Holdings worth $21 as of Q2 2026.
  • Costello Asset Management left its Amentum Holdings share count unchanged in Q2 2026.
  • Amentum Holdings made up ﹤0.01% of Costello Asset Management's portfolio in Q2 2026, its #710 holding.
  • Costello Asset Management first reported a position in Amentum Holdings in Q2 2025 and has held it in 5 quarters since.
  • Costello Asset Management's Amentum Holdings position peaked at $307 in Q2 2025.
  • 206 funds tracked by Wall St. Rank held Amentum Holdings as of Q2 2026.

Based on Costello Asset Management's 13F filing for Q2 2026, filed 28 Jul 2026.