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Stephens Investment Management Group’s Amprius Technologies AMPX Stock Holding History

Stephens Investment Management Group’s Portfolio AMPX Stock Details AMPX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$9.9M Sell
714,324
-178,784
-20% -$3.2M 0.11% 154
2026
Q1 		$15.1M Sell
893,108
-548,590
-38% -$7.15M 0.21% 131
2025
Q4 		$11.4M Buy
1,441,698
+358,791
+33% +$4.1M 0.15% 141
2025
Q3 		$11.4M Buy
+1,082,907
New +$8.52M 0.15% 143

Other funds holding AMPX

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Deutsche Bank
Deutsche Bank Frankfurt Am Main Ge, Germany $344B AUM 42.99% 1-Year Est. Return
IMC Chicago
IMC Chicago Chicago, Illinois $419B AUM 72.04% 1-Year Est. Return
TCM
TimesSquare Capital Management New York $6.8B AUM 45.85% 1-Year Est. Return
Massachusetts Financial Services
Massachusetts Financial Services Boston, Massachusetts $315B AUM 27.84% 1-Year Est. Return
OC
Oppenheimer & Co New York $9.37B AUM 36.4% 1-Year Est. Return
Polen Capital Management
Polen Capital Management Boca Raton, Florida $11.6B AUM 8.03% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return
HighTower Advisors
HighTower Advisors Chicago, Illinois $103B AUM 28.65% 1-Year Est. Return

Stephens Investment Management Group's AMPX Position: Q2 2026 in Review

Stephens Investment Management Group reduced its Amprius Technologies (AMPX) stake by 20% in Q2 2026, selling an estimated $3.2M and leaving 714,324 shares worth $9.9M. The position accounts for 0.11% of the portfolio, ranked #154.

Stephens Investment Management Group first reported a position in AMPX in Q3 2025 and has held it in 4 quarters since. The position peaked at $15.1M in Q1 2026. 96 funds tracked by Wall St. Rank hold AMPX as of Q2 2026.

  • Stephens Investment Management Group held 714,324 shares of Amprius Technologies worth $9.9M as of Q2 2026.
  • Stephens Investment Management Group sold 178,784 Amprius Technologies shares in Q2 2026, an estimated $3.2M.
  • Amprius Technologies made up 0.11% of Stephens Investment Management Group's portfolio in Q2 2026, its #154 holding.
  • Stephens Investment Management Group first reported a position in Amprius Technologies in Q3 2025 and has held it in 4 quarters since.
  • Stephens Investment Management Group's Amprius Technologies position peaked at $15.1M in Q1 2026.
  • 96 funds tracked by Wall St. Rank held Amprius Technologies as of Q2 2026.

Based on Stephens Investment Management Group's 13F filing for Q2 2026, filed 29 Jul 2026.