Simplex Trading
AMPX icon

Simplex Trading’s Amprius Technologies AMPX Stock Holding History

Simplex Trading’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 		$7.84M Sell
464,800
-47,000
-9% -$613K 0.01% 816
2025
Q4 		$4.04M Sell
511,800
-252,300
-33% -$2.88M ﹤0.01% 1448
2025
Q3 		$8.04M Buy
764,100
+561,200
+277% +$4.41M ﹤0.01% 1111
2025
Q2 		$854K Sell
202,900
-43,400
-18% -$122K ﹤0.01% 2928
2025
Q1 		$660K Sell
246,300
-104,000
-30% -$307K ﹤0.01% 3091
2024
Q4 		$980K Buy
350,300
+292,000
+501% +$510K ﹤0.01% 2861
2024
Q3 		$64K Sell
58,300
-600
-1% -$661 ﹤0.01% 5656
2024
Q2 		$74K Sell
58,900
-21,400
-27% -$34.9K ﹤0.01% 5677
2024
Q1 		$212K Sell
80,300
-85,300
-52% -$317K ﹤0.01% 4783
2023
Q4 		$876K Sell
165,600
-36,000
-18% -$135K ﹤0.01% 3129
2023
Q3 		$955K Buy
201,600
+152,500
+311% +$898K ﹤0.01% 2706
2023
Q2 		$352K Sell
49,100
-119,200
-71% -$1.02M ﹤0.01% 3669
2023
Q1 		$1.47M Buy
168,300
+79,800
+90% +$504K ﹤0.01% 2220
2022
Q4 		$701K Buy
+88,500
New +$811K ﹤0.01% 2833

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

Simplex Trading's AMPX Position: Q3 2025 in Review

Simplex Trading sold out of Amprius Technologies (AMPX) in Q3 2025, closing a stake of 13,916 shares — an estimated $109K sold.

Simplex Trading first reported a position in AMPX in Q1 2023 and held it in 8 quarters. The position peaked at $279K in Q1 2023. 187 funds tracked by Wall St. Rank hold AMPX as of Q3 2025.

  • Simplex Trading reported no remaining Amprius Technologies position as of Q3 2025 after selling out during the quarter.
  • Simplex Trading sold 13,916 Amprius Technologies shares in Q3 2025, an estimated $109K.
  • Simplex Trading first reported a position in Amprius Technologies in Q1 2023 and held it in 8 quarters.
  • Simplex Trading's Amprius Technologies position peaked at $279K in Q1 2023.
  • 187 funds tracked by Wall St. Rank held Amprius Technologies as of Q3 2025.

Based on Simplex Trading's 13F filing for Q3 2025, filed 12 Nov 2025.