AMPXWS — AMPRIUS TECHNOLOGIES INC
As of Q2 2026, 1 SEC-registered investment managers reported holding AMPXWS (AMPRIUS TECHNOLOGIES INC) in their latest 13F filings, with a combined reported value of $4.75K across 811 shares. That is -97.3% by share count (-28.69K shares) versus the previous quarter, while reported value moved -97.7%. Ownership is concentrated: the five largest holders account for 100.0% of reported value and the top ten for 100.0%.
Compared with the prior quarter, 1 opened new positions, 1 exited entirely. 13F holdings are quarter-end snapshots, so these moves reflect positioning as of Q2 2026, not real-time trading.
All figures on this page are computed from SEC Form 13F quarterly filings. 13F filers disclose long positions of $100,000 or more within 45 days of quarter end; short positions, options overlays and intra-quarter trades are not included, so treat the numbers as a quarterly snapshot of institutional ownership rather than real-time positioning.
Q2 2026 — 1 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| UBS Group AG history | 811 | $4.75K | 0.00% | New |
Q1 2026 — 1 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| D. E. Shaw & Co history | 29.50K | $202.66K | 0.00% | Reduce |
Q4 2025 — 2 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| D. E. Shaw & Co history | 267.00K | $686.19K | 0.00% | Hold |
| Millennium Management history | 168.21K | $432.31K | 0.00% | Reduce |
Q3 2025 — 3 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Millennium Management history | 400.00K | $1.46M | 0.00% | New |
| D. E. Shaw & Co history | 267.00K | $977.22K | 0.00% | Hold |
| UBS Group AG history | 1.05K | $3.83K | 0.00% | New |
Q2 2025 — 1 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| D. E. Shaw & Co history | 267.00K | $138.84K | 0.00% | Hold |
Q1 2025 — 2 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| D. E. Shaw & Co history | 267.00K | $128.19K | 0.00% | Hold |
| UBS Group AG history | 859 | $412 | 0.00% | Reduce |
New Positions (Q2 2026)
- UBS Group AG 811 sh · $4.75K
Fully Exited (vs previous quarter)
- D. E. Shaw & Co sold 29.50K sh · $202.66K
Fund Position History — shares by quarter (top 5 funds)
| Fund | Q2 2026 | Q1 2026 | Q4 2025 | Q3 2025 | Q2 2025 | Q1 2025 | Q4 2024 | Q3 2024 | Q2 2024 | Q1 2024 | Q4 2023 | Q3 2023 | Q2 2023 | Q1 2023 | Q4 2022 | Q3 2022 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UBS Group AG | 811 | — | — | 1.05K | — | 859 | 4.27K | 1.55K | 6.82K | — | 700 | — | — | 600 | 19.13K | 14.40K |
| D. E. Shaw & Co | — | 29.50K | 267.00K | 267.00K | 267.00K | 267.00K | 267.00K | — | — | — | — | — | — | — | — | — |
| Millennium Management | — | — | 168.21K | 400.00K | — | — | — | — | — | 38.38K | 45.56K | 216.82K | 269.11K | 358.81K | 395.10K | 500.00K |
| Two Sigma Investments | — | — | — | — | — | — | — | — | — | 44.10K | — | — | 42.30K | — | — | — |
| Balyasny Asset Management | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 250.00K | 250.00K |