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LMR Partners’s Amprius Technologies AMPX Stock Holding History

LMR Partners’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 		$24.3M Buy
+1,750,850
New +$31.4M 0.09% 199
2024
Q4 		– Sell
-165,407
Closed -$184K – 1196
2024
Q3 		$184K Hold
165,407
– – ﹤0.01% 1004
2024
Q2 		$210K Buy
+165,407
New +$270K ﹤0.01% 850

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

LMR Partners's AMPX Position: Q2 2026 in Review

LMR Partners opened a new position in Amprius Technologies (AMPX) in Q2 2026: 1,750,850 shares worth $24.3M. The stake represents 0.09% of the portfolio and ranks #199 among its holdings. This is a return to the name: LMR Partners previously reported a position in AMPX as recently as Q3 2024.

LMR Partners first reported a position in AMPX in Q2 2024 and has held it in 3 quarters since. 261 funds tracked by Wall St. Rank hold AMPX as of Q2 2026.

  • LMR Partners held 1,750,850 shares of Amprius Technologies worth $24.3M as of Q2 2026.
  • Amprius Technologies was a new LMR Partners position in Q2 2026.
  • Amprius Technologies made up 0.09% of LMR Partners's portfolio in Q2 2026, its #199 holding.
  • LMR Partners first reported a position in Amprius Technologies in Q2 2024 and has held it in 3 quarters since.
  • 261 funds tracked by Wall St. Rank held Amprius Technologies as of Q2 2026.

Based on LMR Partners's 13F filing for Q2 2026, filed 14 Aug 2026.