Millennium Management
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Millennium Management’s Amprius Technologies AMPX Stock Holding History

Millennium Management’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 		$17.5M Sell
1,035,238
-50,032
-5% -$652K 0.01% 1660
2025
Q4 		$8.56M Buy
1,085,270
+497,438
+85% +$5.69M ﹤0.01% 2429
2025
Q3 		$6.18M Sell
587,832
-3,028,548
-84% -$23.8M ﹤0.01% 2912
2025
Q2 		$15.2M Buy
3,616,380
+2,220,367
+159% +$6.25M 0.01% 1838
2025
Q1 		$3.74M Buy
1,396,013
+678,442
+95% +$2M ﹤0.01% 3151
2024
Q4 		$2.01M Buy
+717,571
New +$1.25M ﹤0.01% 3641
2024
Q3 		– Sell
-179,585
Closed -$228K – 6061
2024
Q2 		$228K Buy
179,585
+122,543
+215% +$200K ﹤0.01% 5062
2024
Q1 		$151K Buy
57,042
+43,426
+319% +$161K ﹤0.01% 5467
2023
Q4 		$72K Sell
13,616
-89,870
-87% -$338K ﹤0.01% 5411
2023
Q3 		$491K Buy
+103,486
New +$609K ﹤0.01% 4678
2023
Q1 		– Sell
-27,645
Closed -$219K – 6319
2022
Q4 		$219K Buy
27,645
+10,137
+58% +$92.9K ﹤0.01% 5283
2022
Q3 		$161K Buy
+17,508
New +$180K ﹤0.01% 5772

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

Millennium Management's AMPX Position: Q1 2026 in Review

Millennium Management reduced its Amprius Technologies (AMPX) stake by 4.6% in Q1 2026, selling an estimated $652K and leaving 1,035,238 shares worth $17.5M. The position accounts for 0.01% of the portfolio, ranked #1660.

Millennium Management first reported a position in AMPX in Q3 2022 and has held it in 12 quarters since. 245 funds tracked by Wall St. Rank hold AMPX as of Q1 2026.

  • Millennium Management held 1,035,238 shares of Amprius Technologies worth $17.5M as of Q1 2026.
  • Millennium Management sold 50,032 Amprius Technologies shares in Q1 2026, an estimated $652K.
  • Amprius Technologies made up 0.01% of Millennium Management's portfolio in Q1 2026, its #1660 holding.
  • Millennium Management first reported a position in Amprius Technologies in Q3 2022 and has held it in 12 quarters since.
  • 245 funds tracked by Wall St. Rank held Amprius Technologies as of Q1 2026.

Based on Millennium Management's 13F filing for Q1 2026, filed 15 May 2026.