AMPX Stock Ownership Activity

AMPRIUS TECHNOLOGIES INC 13F holders

1 value investing guru has made changes to the AMPRIUS TECHNOLOGIES INC (AMPX) position according to the gurus' latest SEC quarterly report(s). The number of AMPX shares has been increased by 1 super investor(s).

Which gurus or hedge funds are buying AMPX now?

According to the latest SEC filing(s) AMPRIUS TECHNOLOGIES INC (AMPX) has been bought by David M. Polen - Polen Capital Management (added shares +46.43%).

To see more about who is investing in AMPRIUS TECHNOLOGIES INC (AMPX), please go to the AMPX ownership page.

2026 Q1 (1 result)
David M. Polen
+46.43%
+133,855
+0.02%
0.05%
Current price: $21.74 28.94% Reported price*: $16.86
2025 Q4 (1 result)
David M. Polen
-15.07%
-51,137
-0.00%
0.01%
Current price: $21.74 175.54% Reported price*: $7.89
2025 Q3 (1 result)
David M. Polen
buy
+339,427
+0.01%
0.01%
Current price: $21.74 106.65% Reported price*: $10.52
3 of 3

Shares, change to shares, sold shares - split-adjusted.

Reported price - this doesn't represent the actual buy or sell price.
It is the split-adjusted price of the security as of the last day of the reported period.

Value or Price - If the security is completely sold out, we show the reported value (or price) prior to the actual period.