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EAM Investors’s Amprius Technologies AMPX Stock Holding History

EAM 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 		– Sell
-262,036
Closed -$4.42M – 273
2026
Q1 		$4.42M Buy
262,036
+25,226
+11% +$329K 0.51% 74
2025
Q4 		$1.87M Sell
236,810
-251,720
-52% -$2.88M 0.21% 165
2025
Q3 		$5.08M Buy
488,530
+277,278
+131% +$2.18M 0.58% 55
2025
Q2 		$889K Buy
+211,252
New +$594K 0.13% 172

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

EAM Investors's AMPX Position: Q2 2026 in Review

EAM Investors sold out of Amprius Technologies (AMPX) in Q2 2026, closing a stake of 262,036 shares — an estimated $4.42M sold.

EAM Investors first reported a position in AMPX in Q2 2025 and held it in 4 quarters. The position peaked at $5.08M in Q3 2025. 262 funds tracked by Wall St. Rank hold AMPX as of Q2 2026.

  • EAM Investors reported no remaining Amprius Technologies position as of Q2 2026 after selling out during the quarter.
  • EAM Investors sold 262,036 Amprius Technologies shares in Q2 2026, an estimated $4.42M.
  • EAM Investors first reported a position in Amprius Technologies in Q2 2025 and held it in 4 quarters.
  • EAM Investors's Amprius Technologies position peaked at $5.08M in Q3 2025.
  • 262 funds tracked by Wall St. Rank held Amprius Technologies as of Q2 2026.

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