Public Sector Pension Investment Board (PSP Investments)
AMTM

Public Sector Pension Investment Board (PSP Investments)’s Amentum Holdings AMTM Stock Holding History

Public Sector Pension Investment Board (PSP Investments)’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 		$10.9M Sell
528,821
-20,976
-4% -$507K 0.03% 602
2026
Q1 		$14.3M Buy
549,797
+19,231
+4% +$603K 0.04% 383
2025
Q4 		$15.4M Sell
530,566
-67,410
-11% -$1.72M 0.05% 293
2025
Q3 		$14.3M Buy
597,976
+83,804
+16% +$2.04M 0.05% 312
2025
Q2 		$12.1M Buy
514,172
+59,043
+13% +$1.23M 0.05% 302
2025
Q1 		$8.28M Buy
455,129
+145,943
+47% +$2.97M 0.04% 454
2024
Q4 		$6.5M Buy
+309,186
New +$7.99M 0.03% 514

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

Public Sector Pension Investment Board (PSP Investments)'s AMTM Position: Q2 2026 in Review

Public Sector Pension Investment Board (PSP Investments) reduced its Amentum Holdings (AMTM) stake by 3.8% in Q2 2026, selling an estimated $507K and leaving 528,821 shares worth $10.9M. The position accounts for 0.03% of the portfolio, ranked #602.

Public Sector Pension Investment Board (PSP Investments) first reported a position in AMTM in Q4 2024 and has held it in 7 quarters since. The position peaked at $15.4M in Q4 2025. 458 funds tracked by Wall St. Rank hold AMTM as of Q2 2026.

  • Public Sector Pension Investment Board (PSP Investments) held 528,821 shares of Amentum Holdings worth $10.9M as of Q2 2026.
  • Public Sector Pension Investment Board (PSP Investments) sold 20,976 Amentum Holdings shares in Q2 2026, an estimated $507K.
  • Amentum Holdings made up 0.03% of Public Sector Pension Investment Board (PSP Investments)'s portfolio in Q2 2026, its #602 holding.
  • Public Sector Pension Investment Board (PSP Investments) first reported a position in Amentum Holdings in Q4 2024 and has held it in 7 quarters since.
  • Public Sector Pension Investment Board (PSP Investments)'s Amentum Holdings position peaked at $15.4M in Q4 2025.
  • 458 funds tracked by Wall St. Rank held Amentum Holdings as of Q2 2026.

Based on Public Sector Pension Investment Board (PSP Investments)'s 13F filing for Q2 2026, filed 13 Aug 2026.