SLAM
AMTM

Swiss Life Asset Management’s Amentum Holdings AMTM Stock Holding History

Swiss Life Asset 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 		$216K Sell
10,448
-6,070
-37% -$147K ﹤0.01% 1482
2026
Q1 		$431K Buy
16,518
+9,433
+133% +$296K ﹤0.01% 935
2025
Q4 		$205K Buy
+7,085
New +$181K ﹤0.01% 1272
2024
Q4 		– Sell
-16,362
Closed -$453K – 714
2024
Q3 		$453K Buy
+16,362
New +$466K 0.01% 546

Other funds holding AMTM

BlackRock
BlackRock New York $6.73T AUM 46.02% 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
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
TSW
Thompson Siegel & Walmsley Richmond, Virginia $5.57B AUM 9.46% 1-Year Est. Return
SCM
Segra Capital Management Palm Beach, Florida $496M AUM 19.93% 1-Year Est. Return
VOYA Investment Management
VOYA Investment Management Atlanta, Georgia $116B AUM 61.47% 1-Year Est. Return
Norges Bank
Norges Bank Oslo, Norway $1T AUM
CAM
Cacti Asset Management Atlanta, Georgia $1.99B AUM 86.33% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return

Swiss Life Asset Management's AMTM Position: Q2 2026 in Review

Swiss Life Asset Management reduced its Amentum Holdings (AMTM) stake by 37% in Q2 2026, selling an estimated $147K and leaving 10,448 shares worth $216K. The position accounts for ﹤0.01% of the portfolio, ranked #1482.

Swiss Life Asset Management first reported a position in AMTM in Q3 2024 and has held it in 4 quarters since. The position peaked at $453K in Q3 2024. 302 funds tracked by Wall St. Rank hold AMTM as of Q2 2026.

  • Swiss Life Asset Management held 10,448 shares of Amentum Holdings worth $216K as of Q2 2026.
  • Swiss Life Asset Management sold 6,070 Amentum Holdings shares in Q2 2026, an estimated $147K.
  • Amentum Holdings made up ﹤0.01% of Swiss Life Asset Management's portfolio in Q2 2026, its #1482 holding.
  • Swiss Life Asset Management first reported a position in Amentum Holdings in Q3 2024 and has held it in 4 quarters since.
  • Swiss Life Asset Management's Amentum Holdings position peaked at $453K in Q3 2024.
  • 302 funds tracked by Wall St. Rank held Amentum Holdings as of Q2 2026.

Based on Swiss Life Asset Management's 13F filing for Q2 2026, filed 29 Jul 2026.