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Atom Investors’s Amprius Technologies AMPX Stock Holding History

Atom Investors’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 		$784K Buy
+56,596
New +$1.01M 0.07% 426
2025
Q4 		– Sell
-10,472
Closed -$110K – 574
2025
Q3 		$110K Buy
+10,472
New +$82.4K 0.01% 548

Other funds holding AMPX

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Jane Street
Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
JAM
Jupiter Asset Management London, United Kingdom $20.2B AUM 29.18% 1-Year Est. Return

Atom Investors's AMPX Position: Q2 2026 in Review

Atom Investors opened a new position in Amprius Technologies (AMPX) in Q2 2026: 56,596 shares worth $784K. The stake represents 0.07% of the portfolio and ranks #426 among its holdings. This is a return to the name: Atom Investors previously reported a position in AMPX as recently as Q3 2025.

Atom Investors first reported a position in AMPX in Q3 2025 and has held it in 2 quarters since. 261 funds tracked by Wall St. Rank hold AMPX as of Q2 2026.

  • Atom Investors held 56,596 shares of Amprius Technologies worth $784K as of Q2 2026.
  • Amprius Technologies was a new Atom Investors position in Q2 2026.
  • Amprius Technologies made up 0.07% of Atom Investors's portfolio in Q2 2026, its #426 holding.
  • Atom Investors first reported a position in Amprius Technologies in Q3 2025 and has held it in 2 quarters since.
  • 261 funds tracked by Wall St. Rank held Amprius Technologies as of Q2 2026.

Based on Atom Investors's 13F filing for Q2 2026, filed 14 Aug 2026.