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Jeff Yass’s Amprius Technologies AMPX Stock Holding History

Jeff Yass’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 		$63.3M Sell
4,565,200
-595,700
-12% -$10.7M ﹤0.01% 1311
2026
Q1 		$87M Buy
5,160,900
+2,849,700
+123% +$37.2M 0.01% 912
2025
Q4 		$18.2M Buy
2,311,200
+682,000
+42% +$7.8M ﹤0.01% 2309
2025
Q3 		$17.1M Buy
1,629,200
+1,221,200
+299% +$9.61M ﹤0.01% 2368
2025
Q2 		$1.72M Buy
408,000
+52,600
+15% +$148K ﹤0.01% 6125
2025
Q1 		$952K Buy
355,400
+143,700
+68% +$424K ﹤0.01% 7380
2024
Q4 		$593K Buy
211,700
+148,400
+234% +$259K ﹤0.01% 8258
2024
Q3 		$70.3K Sell
63,300
-28,000
-31% -$30.8K ﹤0.01% 11237
2024
Q2 		$116K Sell
91,300
-92,900
-50% -$152K ﹤0.01% 10909
2024
Q1 		$488K Sell
184,200
-682,100
-79% -$2.53M ﹤0.01% 8575
2023
Q4 		$4.58M Sell
866,300
-115,600
-12% -$435K ﹤0.01% 3849
2023
Q3 		$4.65M Buy
981,900
+282,700
+40% +$1.66M ﹤0.01% 3660
2023
Q2 		$5.02M Buy
699,200
+299,000
+75% +$2.57M ﹤0.01% 3538
2023
Q1 		$3.49M Buy
400,200
+292,400
+271% +$1.85M ﹤0.01% 4018
2022
Q4 		$855K Buy
+107,800
New +$988K ﹤0.01% 6532

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

Jeff Yass's AMPX Position: Q2 2026 in Review

Jeff Yass increased its Amprius Technologies (AMPX) stake by 1,134% in Q2 2026, buying an estimated $18.1M and bringing the position to 1,100,269 shares worth $15.2M. The position accounts for ﹤0.01% of the portfolio, ranked #2774.

Jeff Yass first reported a position in AMPX in Q3 2023 and has held it in 11 quarters since. 262 funds tracked by Wall St. Rank hold AMPX as of Q2 2026.

  • Jeff Yass held 1,100,269 shares of Amprius Technologies worth $15.2M as of Q2 2026.
  • Jeff Yass bought 1,011,099 Amprius Technologies shares in Q2 2026, an estimated $18.1M.
  • Amprius Technologies made up ﹤0.01% of Jeff Yass's portfolio in Q2 2026, its #2774 holding.
  • Jeff Yass first reported a position in Amprius Technologies in Q3 2023 and has held it in 11 quarters since.
  • 262 funds tracked by Wall St. Rank held Amprius Technologies as of Q2 2026.

Based on Susquehanna International Group's 13F filing for Q2 2026, filed 14 Aug 2026.