Brown, Lisle/Cummings’s Amentum Holdings AMTM Stock Holding History

Brown, Lisle/Cummings’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	$1.78K	Sell	98 -20	-17%	-$419	﹤0.01%	877
2026 Q2	$2.44K	Sell	118 -4	-3%	-$97	﹤0.01%	821
2026 Q1	$3.18K	Buy	122 +69	+130%	+$2.16K	﹤0.01%	740
2025 Q4	$1.54K	Hold	53	–	–	﹤0.01%	660
2025 Q3	$1.27K	Hold	53	–	–	﹤0.01%	686
2025 Q2	$1.25K	Sell	53 -57	-52%	-$1.19K	﹤0.01%	692
2025 Q1	$2K	Hold	110	–	–	﹤0.01%	652
2024 Q4	$2.31K	Hold	110	–	–	﹤0.01%	593
2024 Q3	$3.55K	Buy	+110	New	+$3.13K	﹤0.01%	539

Other funds holding AMTM

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

Segra Capital Management Palm Beach, Florida $987M AUM 57.18% 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

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

OTL

Oak Thistle LLC New York $1.09B AUM 11.78% 1-Year Est. Return

Harbor Capital Advisors Chicago, Illinois $1.48B AUM 30.88% 1-Year Est. Return

Wealth Enhancement Advisory Services Plymouth, Minnesota $67.3B AUM 21.9% 1-Year Est. Return

Louisiana State Employees Retirement System Baton Rouge, Louisiana $6.56B AUM 41.43% 1-Year Est. Return

Brown, Lisle/Cummings's AMTM Position: Q3 2026 in Review

Brown, Lisle/Cummings reduced its Amentum Holdings (AMTM) stake by 17% in Q3 2026, selling an estimated $419 and leaving 98 shares worth $1.78K. The position accounts for ﹤0.01% of the portfolio, ranked #877.

Brown, Lisle/Cummings first reported a position in AMTM in Q3 2024 and has held it in 9 quarters since. The position peaked at $3.55K in Q3 2024. 82 funds tracked by Wall St. Rank hold AMTM as of Q3 2026.

Brown, Lisle/Cummings held 98 shares of Amentum Holdings worth $1.78K as of Q3 2026.
Brown, Lisle/Cummings sold 20 Amentum Holdings shares in Q3 2026, an estimated $419.
Amentum Holdings made up ﹤0.01% of Brown, Lisle/Cummings's portfolio in Q3 2026, its #877 holding.
Brown, Lisle/Cummings first reported a position in Amentum Holdings in Q3 2024 and has held it in 9 quarters since.
Brown, Lisle/Cummings's Amentum Holdings position peaked at $3.55K in Q3 2024.
82 funds tracked by Wall St. Rank held Amentum Holdings as of Q3 2026.

Based on Brown, Lisle/Cummings's 13F filing for Q3 2026, filed 16 Oct 2026.