Lido Advisors
AMTM

Lido Advisors’s Amentum Holdings AMTM Stock Holding History

Lido Advisors’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 		$833K Sell
40,309
-10,036
-20% -$243K ﹤0.01% 1184
2026
Q1 		$1.31M Buy
50,345
+40,496
+411% +$1.27M ﹤0.01% 860
2025
Q4 		$236K Buy
9,849
+60
+0.6% +$1.53K ﹤0.01% 1688
2025
Q3 		$234K Sell
9,789
-496
-5% -$12.1K ﹤0.01% 1614
2025
Q2 		$243K Sell
10,285
-111
-1% -$2.32K ﹤0.01% 1433
2025
Q1 		$189K Sell
10,396
-2,697
-21% -$54.9K ﹤0.01% 1400
2024
Q4 		$275K Sell
13,093
-133
-1% -$3.44K ﹤0.01% 1251
2024
Q3 		$427K Buy
+13,226
New +$377K ﹤0.01% 1007

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

Lido Advisors's AMTM Position: Q2 2026 in Review

Lido Advisors reduced its Amentum Holdings (AMTM) stake by 20% in Q2 2026, selling an estimated $243K and leaving 40,309 shares worth $833K. The position accounts for ﹤0.01% of the portfolio, ranked #1184.

Lido Advisors first reported a position in AMTM in Q3 2024 and has held it in 8 quarters since. The position peaked at $1.31M in Q1 2026. 462 funds tracked by Wall St. Rank hold AMTM as of Q2 2026.

  • Lido Advisors held 40,309 shares of Amentum Holdings worth $833K as of Q2 2026.
  • Lido Advisors sold 10,036 Amentum Holdings shares in Q2 2026, an estimated $243K.
  • Amentum Holdings made up ﹤0.01% of Lido Advisors's portfolio in Q2 2026, its #1184 holding.
  • Lido Advisors first reported a position in Amentum Holdings in Q3 2024 and has held it in 8 quarters since.
  • Lido Advisors's Amentum Holdings position peaked at $1.31M in Q1 2026.
  • 462 funds tracked by Wall St. Rank held Amentum Holdings as of Q2 2026.

Based on Lido Advisors's 13F filing for Q2 2026, filed 7 Aug 2026.