Barclays’s Amentum Holdings AMTM Stock Holding History

Barclays’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 Q3	$921K	Sell	50,809 -100,971	-67%	-$2.11M	﹤0.01%	3105
2026 Q2	$3.14M	Buy	151,780 +104,965	+224%	+$2.54M	﹤0.01%	2099
2026 Q1	$1.22M	Sell	46,815 -3,560	-7%	-$112K	﹤0.01%	2629
2025 Q4	$1.46M	Sell	50,375 -3,287	-6%	-$84K	﹤0.01%	3160
2025 Q3	$1.29M	Buy	53,662 +4,423	+9%	+$108K	﹤0.01%	3212
2025 Q2	$1.16M	Sell	49,239 -6,265	-11%	-$131K	﹤0.01%	3235
2025 Q1	$1.01M	Sell	55,504 -114,147	-67%	-$2.32M	﹤0.01%	3102
2024 Q4	$3.57M	Buy	169,651 +9,838	+6%	+$254K	﹤0.01%	2449
2024 Q3	$5.15M	Buy	+159,813	New	+$4.55M	﹤0.01%	2073

Other funds holding AMTM

Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.32T AUM 44.66% 1-Year Est. Return

Thompson Siegel & Walmsley Richmond, Virginia $5.37B AUM 3.99% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return

UBS Group Zurich, Switzerland $765B AUM 28.39% 1-Year Est. Return

Cacti Asset Management Atlanta, Georgia $1.89B AUM 58.55% 1-Year Est. Return

Bank of New York Mellon New York $608B AUM 32.77% 1-Year Est. Return

River Road Asset Management Louisville, Kentucky $8.42B AUM 5.65% 1-Year Est. Return

Segra Capital Management Palm Beach, Florida $822M AUM 57.18% 1-Year Est. Return

Principal Financial Group Des Moines, Iowa $195B AUM 21.17% 1-Year Est. Return

Barclays's AMTM Position: Q3 2026 in Review

Barclays reduced its Amentum Holdings (AMTM) stake by 67% in Q3 2026, selling an estimated $2.11M and leaving 50,809 shares worth $921K. The position accounts for ﹤0.01% of the portfolio, ranked #3105.

Barclays first reported a position in AMTM in Q3 2024 and has held it in 9 quarters since. The position peaked at $5.15M in Q3 2024. 252 funds tracked by Wall St. Rank hold AMTM as of Q3 2026.

Barclays held 50,809 shares of Amentum Holdings worth $921K as of Q3 2026.
Barclays sold 100,971 Amentum Holdings shares in Q3 2026, an estimated $2.11M.
Amentum Holdings made up ﹤0.01% of Barclays's portfolio in Q3 2026, its #3105 holding.
Barclays first reported a position in Amentum Holdings in Q3 2024 and has held it in 9 quarters since.
Barclays's Amentum Holdings position peaked at $5.15M in Q3 2024.
252 funds tracked by Wall St. Rank held Amentum Holdings as of Q3 2026.

Based on Barclays's 13F filing for Q3 2026, filed 6 Nov 2026.