Simplex Trading
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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
2025
Q3 		– Sell
-13,916
Closed -$109K – 8974
2025
Q2 		$58K Sell
13,916
-32,187
-70% -$90.5K ﹤0.01% 5764
2025
Q1 		$123K Buy
+46,103
New +$136K ﹤0.01% 4846
2024
Q4 		– Sell
-14,867
Closed -$26K – 8418
2024
Q3 		$16K Sell
14,867
-792
-5% -$872 ﹤0.01% 6829
2024
Q2 		$19K Sell
15,659
-9,434
-38% -$15.4K ﹤0.01% 6915
2024
Q1 		$66K Buy
+25,093
New +$93.1K ﹤0.01% 5997
2023
Q4 		– Sell
-4,497
Closed -$16.9K – 8700
2023
Q3 		$21K Sell
4,497
-1,815
-29% -$10.7K ﹤0.01% 6564
2023
Q2 		$45K Sell
6,312
-25,759
-80% -$221K ﹤0.01% 5933
2023
Q1 		$279K Buy
+32,071
New +$203K ﹤0.01% 3924

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.