Citigroup’s Amentum Holdings AMTM Stock Holding History

Citigroup’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	$734K	Buy	40,487 +9,001	+29%	+$188K	﹤0.01%	3527
2026 Q2	$651K	Sell	31,486 -9,185	-23%	-$222K	﹤0.01%	3758
2026 Q1	$1.06M	Sell	40,671 -38,337	-49%	-$1.2M	﹤0.01%	3079
2025 Q4	$2.29M	Buy	79,008 +2,299	+3%	+$58.8K	﹤0.01%	2561
2025 Q3	$1.84M	Sell	76,709 -53,155	-41%	-$1.29M	﹤0.01%	2743
2025 Q2	$3.07M	Buy	129,864 +12,055	+10%	+$252K	﹤0.01%	2310
2025 Q1	$2.14M	Sell	117,809 -209,953	-64%	-$4.28M	﹤0.01%	2638
2024 Q4	$6.89M	Buy	327,762 +212,912	+185%	+$5.5M	﹤0.01%	1661
2024 Q3	$3.7M	Buy	+114,850	New	+$3.27M	﹤0.01%	2102

Other funds holding AMTM

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

Cacti Asset Management Atlanta, Georgia $1.89B AUM 58.55% 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

Exchange Traded Concepts Oklahoma City, Oklahoma $25.3B AUM 51.52% 1-Year Est. Return

OpenArc Corporate Advisory Atlanta, Georgia $8.86B AUM 19.31% 1-Year Est. Return

North Growth Management Vancouver, British Columbia, Canada $743M AUM 74.29% 1-Year Est. Return

Wedge Capital Management Charlotte, North Carolina $5.72B AUM 38.26% 1-Year Est. Return

Telos Capital Management San Diego, California $1.14B AUM 21.54% 1-Year Est. Return

New York State Teachers Retirement System (NYSTRS) Albany, New York $52.9B AUM 36.03% 1-Year Est. Return

Citigroup's AMTM Position: Q3 2026 in Review

Citigroup increased its Amentum Holdings (AMTM) stake by 29% in Q3 2026, buying an estimated $188K and bringing the position to 40,487 shares worth $734K. The position accounts for ﹤0.01% of the portfolio, ranked #3527.

Citigroup first reported a position in AMTM in Q3 2024 and has held it in 9 quarters since. The position peaked at $6.89M in Q4 2024. 154 funds tracked by Wall St. Rank hold AMTM as of Q3 2026.

Citigroup held 40,487 shares of Amentum Holdings worth $734K as of Q3 2026.
Citigroup bought 9,001 Amentum Holdings shares in Q3 2026, an estimated $188K.
Amentum Holdings made up ﹤0.01% of Citigroup's portfolio in Q3 2026, its #3527 holding.
Citigroup first reported a position in Amentum Holdings in Q3 2024 and has held it in 9 quarters since.
Citigroup's Amentum Holdings position peaked at $6.89M in Q4 2024.
154 funds tracked by Wall St. Rank held Amentum Holdings as of Q3 2026.

Based on Citigroup's 13F filing for Q3 2026, filed 4 Nov 2026.