Mutual of America Capital Management’s Amentum Holdings AMTM Stock Holding History

Mutual of America Capital 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	$395K	Buy	19,129 +1,542	+9%	+$37.3K	﹤0.01%	1208
2026 Q1	$459K	Buy	17,587 +66	+0.4%	+$2.07K	0.01%	1081
2025 Q4	$508K	Buy	17,521 +349	+2%	+$8.92K	0.01%	1066
2025 Q3	$411K	Sell	17,172 -2,207	-11%	-$53.7K	﹤0.01%	1110
2025 Q2	$458K	Sell	19,379 -1,578	-8%	-$33K	﹤0.01%	1098
2025 Q1	$381K	Buy	20,957 +2,161	+11%	+$44K	﹤0.01%	1170
2024 Q4	$395K	Buy	+18,796	New	+$486K	﹤0.01%	1195

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

Mutual of America Capital Management's AMTM Position: Q2 2026 in Review

Mutual of America Capital Management increased its Amentum Holdings (AMTM) stake by 8.8% in Q2 2026, buying an estimated $37.3K and bringing the position to 19,129 shares worth $395K. The position accounts for ﹤0.01% of the portfolio, ranked #1208.

Mutual of America Capital Management first reported a position in AMTM in Q4 2024 and has held it in 7 quarters since. The position peaked at $508K in Q4 2025. 458 funds tracked by Wall St. Rank hold AMTM as of Q2 2026.

Mutual of America Capital Management held 19,129 shares of Amentum Holdings worth $395K as of Q2 2026.
Mutual of America Capital Management bought 1,542 Amentum Holdings shares in Q2 2026, an estimated $37.3K.
Amentum Holdings made up ﹤0.01% of Mutual of America Capital Management's portfolio in Q2 2026, its #1208 holding.
Mutual of America Capital Management first reported a position in Amentum Holdings in Q4 2024 and has held it in 7 quarters since.
Mutual of America Capital Management's Amentum Holdings position peaked at $508K in Q4 2025.
458 funds tracked by Wall St. Rank held Amentum Holdings as of Q2 2026.

Based on Mutual of America Capital Management's 13F filing for Q2 2026, filed 11 Aug 2026.