TSMHT
AMTM

Thurston Springer Miller Herd & Titak’s Amentum Holdings AMTM Stock Holding History

Thurston Springer Miller Herd & Titak’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
Q1 		– Sell
-511
Closed -$14.8K – 1434
2025
Q4 		$14.8K Buy
511
+246
+93% +$6.29K 0.01% 839
2025
Q3 		$6.35K Sell
265
-884
-77% -$21.5K 0.01% 395
2025
Q2 		$27.1K Buy
1,149
+138
+14% +$2.88K ﹤0.01% 839
2025
Q1 		$18.4K Hold
1,011
– – ﹤0.01% 910
2024
Q4 		$21.3K Buy
1,011
+145
+17% +$3.75K ﹤0.01% 713
2024
Q3 		$27.9K Buy
+866
New +$24.7K 0.01% 725

Other funds holding AMTM

AS
American Securities New York $3.93B AUM 52.22% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
FCM
Frontier Capital Management Boston, Massachusetts $9.73B AUM 55.65% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Thurston Springer Miller Herd & Titak's AMTM Position: Q1 2026 in Review

Thurston Springer Miller Herd & Titak sold out of Amentum Holdings (AMTM) in Q1 2026, closing a stake of 511 shares — an estimated $14.8K sold.

Thurston Springer Miller Herd & Titak first reported a position in AMTM in Q3 2024 and held it in 6 quarters. The position peaked at $27.9K in Q3 2024. 486 funds tracked by Wall St. Rank hold AMTM as of Q1 2026.

  • Thurston Springer Miller Herd & Titak reported no remaining Amentum Holdings position as of Q1 2026 after selling out during the quarter.
  • Thurston Springer Miller Herd & Titak sold 511 Amentum Holdings shares in Q1 2026, an estimated $14.8K.
  • Thurston Springer Miller Herd & Titak first reported a position in Amentum Holdings in Q3 2024 and held it in 6 quarters.
  • Thurston Springer Miller Herd & Titak's Amentum Holdings position peaked at $27.9K in Q3 2024.
  • 486 funds tracked by Wall St. Rank held Amentum Holdings as of Q1 2026.

Based on Thurston Springer Miller Herd & Titak's 13F filing for Q1 2026, filed 14 Apr 2026.