Illinois Municipal Retirement Fund’s Amentum Holdings AMTM Stock Holding History

Illinois Municipal Retirement Fund’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	$1.77M	Buy	85,809 +2,402	+3%	+$58.1K	0.02%	677
2026 Q1	$2.18M	Buy	+83,407	New	+$2.62M	0.03%	559
2025 Q4	–	Sell	-82,628	Closed	-$1.98M	–	1225
2025 Q3	$1.98M	Buy	82,628 +7,176	+10%	+$175K	0.03%	599
2025 Q2	$1.78M	Buy	75,452 +8,945	+13%	+$187K	0.02%	628
2025 Q1	$1.21M	Buy	+66,507	New	+$1.35M	0.02%	813
2024 Q4	–	Sell	-9,345	Closed	-$301K	–	1380
2024 Q3	$301K	Buy	+9,345	New	+$266K	﹤0.01%	1311

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

Illinois Municipal Retirement Fund's AMTM Position: Q2 2026 in Review

Illinois Municipal Retirement Fund increased its Amentum Holdings (AMTM) stake by 2.9% in Q2 2026, buying an estimated $58.1K and bringing the position to 85,809 shares worth $1.77M. The position accounts for 0.02% of the portfolio, ranked #677.

Illinois Municipal Retirement Fund first reported a position in AMTM in Q3 2024 and has held it in 6 quarters since. The position peaked at $2.18M in Q1 2026. 458 funds tracked by Wall St. Rank hold AMTM as of Q2 2026.

Illinois Municipal Retirement Fund held 85,809 shares of Amentum Holdings worth $1.77M as of Q2 2026.
Illinois Municipal Retirement Fund bought 2,402 Amentum Holdings shares in Q2 2026, an estimated $58.1K.
Amentum Holdings made up 0.02% of Illinois Municipal Retirement Fund's portfolio in Q2 2026, its #677 holding.
Illinois Municipal Retirement Fund first reported a position in Amentum Holdings in Q3 2024 and has held it in 6 quarters since.
Illinois Municipal Retirement Fund's Amentum Holdings position peaked at $2.18M in Q1 2026.
458 funds tracked by Wall St. Rank held Amentum Holdings as of Q2 2026.

Based on Illinois Municipal Retirement Fund's 13F filing for Q2 2026, filed 12 Aug 2026.