AllianceBernstein’s Amentum Holdings AMTM Stock Holding History

AllianceBernstein’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	$2.08M	Buy	79,944 +6,138	+8%	+$148K	﹤0.01%	2024
2026 Q1	$2.14M	Buy	73,806 +2,533	+4%	+$79.5K	﹤0.01%	1956
2025 Q4	$2.07M	Sell	71,273 -98,453	-58%	-$2.52M	﹤0.01%	1979
2025 Q3	$4.06M	Sell	169,726 -178,958	-51%	-$4.36M	﹤0.01%	1621
2025 Q2	$8.23M	Buy	348,684 +293,505	+532%	+$6.13M	﹤0.01%	1258
2025 Q1	$1M	Buy	55,179 +7,126	+15%	+$145K	﹤0.01%	2236
2024 Q4	$1.01M	Sell	48,053 -94,593	-66%	-$2.45M	﹤0.01%	2324
2024 Q3	$4.6M	Buy	+142,646	New	+$4.06M	﹤0.01%	1549

Other funds holding AMTM

American Securities New York $3.75B AUM 23.12% 1-Year Est. Return

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

AllianceBernstein's AMTM Position: Q2 2026 in Review

AllianceBernstein increased its Amentum Holdings (AMTM) stake by 8.3% in Q2 2026, buying an estimated $148K and bringing the position to 79,944 shares worth $2.08M. The position accounts for ﹤0.01% of the portfolio, ranked #2024.

AllianceBernstein first reported a position in AMTM in Q3 2024 and has held it in 8 quarters since. The position peaked at $8.23M in Q2 2025. 462 funds tracked by Wall St. Rank hold AMTM as of Q2 2026.

AllianceBernstein held 79,944 shares of Amentum Holdings worth $2.08M as of Q2 2026.
AllianceBernstein bought 6,138 Amentum Holdings shares in Q2 2026, an estimated $148K.
Amentum Holdings made up ﹤0.01% of AllianceBernstein's portfolio in Q2 2026, its #2024 holding.
AllianceBernstein first reported a position in Amentum Holdings in Q3 2024 and has held it in 8 quarters since.
AllianceBernstein's Amentum Holdings position peaked at $8.23M in Q2 2025.
462 funds tracked by Wall St. Rank held Amentum Holdings as of Q2 2026.

Based on AllianceBernstein's 13F filing for Q2 2026, filed 14 Aug 2026.