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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 		$35.8M Buy
2,581,200
+1,229,800
+91% +$22M ﹤0.01% 1844
2026
Q1 		$22.8M Buy
1,351,400
+295,000
+28% +$3.85M ﹤0.01% 2067
2025
Q4 		$8.33M Buy
1,056,400
+651,500
+161% +$7.45M ﹤0.01% 3292
2025
Q3 		$4.26M Buy
404,900
+283,700
+234% +$2.23M ﹤0.01% 4352
2025
Q2 		$510K Sell
121,200
-125,200
-51% -$352K ﹤0.01% 9136
2025
Q1 		$660K Buy
246,400
+140,400
+132% +$414K ﹤0.01% 8286
2024
Q4 		$297K Buy
106,000
+28,400
+37% +$49.6K ﹤0.01% 9850
2024
Q3 		$86.1K Sell
77,600
-75,900
-49% -$83.6K ﹤0.01% 11140
2024
Q2 		$195K Buy
153,500
+7,700
+5% +$12.6K ﹤0.01% 10394
2024
Q1 		$386K Sell
145,800
-34,600
-19% -$128K ﹤0.01% 9110
2023
Q4 		$954K Buy
180,400
+25,700
+17% +$96.6K ﹤0.01% 7101
2023
Q3 		$733K Sell
154,700
-10,500
-6% -$61.8K ﹤0.01% 7345
2023
Q2 		$1.19M Buy
165,200
+146,700
+793% +$1.26M ﹤0.01% 6291
2023
Q1 		$161K Buy
18,500
+3,500
+23% +$22.1K ﹤0.01% 10846
2022
Q4 		$119K Buy
+15,000
New +$137K ﹤0.01% 10774

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.