Marshall Wace
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Marshall Wace’s Amprius Technologies AMPX Stock Holding History

Marshall Wace’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
Q1 		$20.7M Buy
+1,227,599
New +$16M 0.02% 692
2025
Q4 		– Sell
-30,368
Closed -$319K – 2926
2025
Q3 		$319K Sell
30,368
-1,075,045
-97% -$8.46M ﹤0.01% 2402
2025
Q2 		$4.65M Buy
1,105,413
+153,476
+16% +$432K 0.01% 1172
2025
Q1 		$2.55M Buy
951,937
+898,302
+1,675% +$2.65M ﹤0.01% 1359
2024
Q4 		$150K Buy
+53,635
New +$93.7K ﹤0.01% 2397
2023
Q3 		– Sell
-10,088
Closed -$72.4K – 2157
2023
Q2 		$72.4K Buy
+10,088
New +$86.6K ﹤0.01% 2356

Other funds holding AMPX

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Jane Street
Jane Street New York $777B AUM 61.18% 1-Year Est. Return
DCM
Driehaus Capital Management Chicago, Illinois $13.6B AUM 173.98% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return

Marshall Wace's AMPX Position: Q1 2026 in Review

Marshall Wace opened a new position in Amprius Technologies (AMPX) in Q1 2026: 1,227,599 shares worth $20.7M. The stake represents 0.02% of the portfolio and ranks #692 among its holdings. This is a return to the name: Marshall Wace previously reported a position in AMPX as recently as Q3 2025.

Marshall Wace first reported a position in AMPX in Q2 2023 and has held it in 6 quarters since. 245 funds tracked by Wall St. Rank hold AMPX as of Q1 2026.

  • Marshall Wace held 1,227,599 shares of Amprius Technologies worth $20.7M as of Q1 2026.
  • Amprius Technologies was a new Marshall Wace position in Q1 2026.
  • Amprius Technologies made up 0.02% of Marshall Wace's portfolio in Q1 2026, its #692 holding.
  • Marshall Wace first reported a position in Amprius Technologies in Q2 2023 and has held it in 6 quarters since.
  • 245 funds tracked by Wall St. Rank held Amprius Technologies as of Q1 2026.

Based on Marshall Wace's 13F filing for Q1 2026, filed 15 May 2026.