Commonwealth of Pennsylvania Public School Employees Retirement System’s Amentum Holdings AMTM Stock Holding History

Commonwealth of Pennsylvania Public School Employees Retirement System’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	$754K	Sell	36,500 -1,504	-4%	-$36.4K	﹤0.01%	1276
2026 Q1	$991K	Buy	38,004 +53	+0.1%	+$1.66K	0.01%	1117
2025 Q4	$1.1M	Sell	37,951 -1,089	-3%	-$27.8K	0.01%	1078
2025 Q3	$935K	Buy	39,040 +308	+0.8%	+$7.5K	﹤0.01%	1139
2025 Q2	$914K	Buy	38,732 +4,380	+13%	+$91.5K	﹤0.01%	1096
2025 Q1	$625K	Buy	34,352 +7,862	+30%	+$160K	﹤0.01%	1210
2024 Q4	$557K	Sell	26,490 -768	-3%	-$19.9K	﹤0.01%	1233
2024 Q3	$879K	Buy	+27,258	New	+$777K	0.01%	1032

Other funds holding AMTM

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

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

Commonwealth of Pennsylvania Public School Employees Retirement System's AMTM Position: Q2 2026 in Review

Commonwealth of Pennsylvania Public School Employees Retirement System reduced its Amentum Holdings (AMTM) stake by 4% in Q2 2026, selling an estimated $36.4K and leaving 36,500 shares worth $754K. The position accounts for ﹤0.01% of the portfolio, ranked #1276.

Commonwealth of Pennsylvania Public School Employees Retirement System first reported a position in AMTM in Q3 2024 and has held it in 8 quarters since. The position peaked at $1.1M in Q4 2025. 458 funds tracked by Wall St. Rank hold AMTM as of Q2 2026.

Commonwealth of Pennsylvania Public School Employees Retirement System held 36,500 shares of Amentum Holdings worth $754K as of Q2 2026.
Commonwealth of Pennsylvania Public School Employees Retirement System sold 1,504 Amentum Holdings shares in Q2 2026, an estimated $36.4K.
Amentum Holdings made up ﹤0.01% of Commonwealth of Pennsylvania Public School Employees Retirement System's portfolio in Q2 2026, its #1276 holding.
Commonwealth of Pennsylvania Public School Employees Retirement System first reported a position in Amentum Holdings in Q3 2024 and has held it in 8 quarters since.
Commonwealth of Pennsylvania Public School Employees Retirement System's Amentum Holdings position peaked at $1.1M in Q4 2025.
458 funds tracked by Wall St. Rank held Amentum Holdings as of Q2 2026.

Based on Commonwealth of Pennsylvania Public School Employees Retirement System's 13F filing for Q2 2026, filed 17 Jul 2026.