HighTower Advisors
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HighTower Advisors’s Amprius Technologies AMPX Stock Holding History

HighTower Advisors’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 		$5.77M Buy
416,434
+405,421
+3,681% +$7.26M 0.01% 1175
2026
Q1 		$186K Sell
11,013
-3,018
-22% -$39.3K ﹤0.01% 3507
2025
Q4 		$111K Sell
14,031
-2,803
-17% -$32K ﹤0.01% 3490
2025
Q3 		$177K Buy
+16,834
New +$132K ﹤0.01% 3410
2025
Q1 		– Sell
-15,500
Closed -$43.4K – 3744
2024
Q4 		$43.4K Buy
+15,500
New +$27.1K ﹤0.01% 3472

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
SIMG
Stephens Investment Management Group Houston, Texas $9.33B AUM 56.1% 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's AMPX Position: Q2 2026 in Review

HighTower Advisors increased its Amprius Technologies (AMPX) stake by 3,681% in Q2 2026, buying an estimated $7.26M and bringing the position to 416,434 shares worth $5.77M. The position accounts for 0.01% of the portfolio, ranked #1175.

HighTower Advisors first reported a position in AMPX in Q4 2024 and has held it in 5 quarters since. 96 funds tracked by Wall St. Rank hold AMPX as of Q2 2026.

  • HighTower Advisors held 416,434 shares of Amprius Technologies worth $5.77M as of Q2 2026.
  • HighTower Advisors bought 405,421 Amprius Technologies shares in Q2 2026, an estimated $7.26M.
  • Amprius Technologies made up 0.01% of HighTower Advisors's portfolio in Q2 2026, its #1175 holding.
  • HighTower Advisors first reported a position in Amprius Technologies in Q4 2024 and has held it in 5 quarters since.
  • 96 funds tracked by Wall St. Rank held Amprius Technologies as of Q2 2026.

Based on HighTower Advisors's 13F filing for Q2 2026, filed 5 Aug 2026.