Citadel Advisors
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Citadel Advisors’s Amprius Technologies AMPX Stock Holding History

Citadel Advisors’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 		$23.2M Buy
1,676,344
+237,684
+17% +$4.26M ﹤0.01% 2378
2026
Q1 		$24.3M Buy
1,438,660
+983,806
+216% +$12.8M ﹤0.01% 2099
2025
Q4 		$3.59M Sell
454,854
-2,051,945
-82% -$23.5M ﹤0.01% 4834
2025
Q3 		$26.4M Buy
2,506,799
+2,227,142
+796% +$17.5M ﹤0.01% 2001
2025
Q2 		$1.18M Buy
279,657
+250,250
+851% +$704K ﹤0.01% 6730
2025
Q1 		$78.8K Buy
+29,407
New +$86.8K ﹤0.01% 11784
2024
Q3 		– Sell
-105,455
Closed -$116K – 14169
2024
Q2 		$134K Sell
105,455
-23,451
-18% -$38.3K ﹤0.01% 10508
2024
Q1 		$342K Buy
+128,906
New +$478K ﹤0.01% 9195
2022
Q4 		– Sell
-12,770
Closed -$117K – 14833
2022
Q3 		$118K Buy
+12,770
New +$131K ﹤0.01% 10951

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

Citadel Advisors's AMPX Position: Q2 2026 in Review

Citadel Advisors increased its Amprius Technologies (AMPX) stake by 17% in Q2 2026, buying an estimated $4.26M and bringing the position to 1,676,344 shares worth $23.2M. The position accounts for ﹤0.01% of the portfolio, ranked #2378.

Citadel Advisors first reported a position in AMPX in Q3 2022 and has held it in 9 quarters since. The position peaked at $26.4M in Q3 2025. 261 funds tracked by Wall St. Rank hold AMPX as of Q2 2026.

  • Citadel Advisors held 1,676,344 shares of Amprius Technologies worth $23.2M as of Q2 2026.
  • Citadel Advisors bought 237,684 Amprius Technologies shares in Q2 2026, an estimated $4.26M.
  • Amprius Technologies made up ﹤0.01% of Citadel Advisors's portfolio in Q2 2026, its #2378 holding.
  • Citadel Advisors first reported a position in Amprius Technologies in Q3 2022 and has held it in 9 quarters since.
  • Citadel Advisors's Amprius Technologies position peaked at $26.4M in Q3 2025.
  • 261 funds tracked by Wall St. Rank held Amprius Technologies as of Q2 2026.

Based on Citadel Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.