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 		$6.11M Buy
362,100
+299,600
+479% +$3.91M ﹤0.01% 976
2025
Q4 		$493K Sell
62,500
-12,500
-17% -$143K ﹤0.01% 3315
2025
Q3 		$789K Buy
75,000
+39,600
+112% +$312K ﹤0.01% 3293
2025
Q2 		$149K Sell
35,400
-9,200
-21% -$25.9K ﹤0.01% 4803
2025
Q1 		$119K Sell
44,600
-4,700
-10% -$13.9K ﹤0.01% 4879
2024
Q4 		$138K Buy
49,300
+42,200
+594% +$73.7K ﹤0.01% 4880
2024
Q3 		$7K Sell
7,100
-13,800
-66% -$15.2K ﹤0.01% 7389
2024
Q2 		$26K Sell
20,900
-24,100
-54% -$39.3K ﹤0.01% 6666
2024
Q1 		$119K Buy
45,000
+36,400
+423% +$135K ﹤0.01% 5408
2023
Q4 		$45K Sell
8,600
-8,300
-49% -$31.2K ﹤0.01% 6166
2023
Q3 		$80K Sell
16,900
-6,000
-26% -$35.3K ﹤0.01% 5310
2023
Q2 		$164K Buy
22,900
+4,100
+22% +$35.2K ﹤0.01% 4528
2023
Q1 		$163K Sell
18,800
-1,400
-7% -$8.84K ﹤0.01% 4563
2022
Q4 		$160K Buy
+20,200
New +$185K ﹤0.01% 4505

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.