$60,000 of AMPRIUS TECHNOLOGIES INC. lobbying was just disclosed, from Q3 of 2026, in a new Lobbying Disclosure Act filing.
This included lobbying on issues like:
"Incentives for domestic battery cells and materials markets including the Section 45X Advanced Manufacturing Credit and the Section 45W Credit for qualified commercial clean vehicles; Section 301 tariff policies; and R&D funding for domestic battery cells and materials. Incentives for domestic battery cells and materials markets including the Section 45X Advanced Manufacturing Credit and the Section 45W Credit for qualified commercial clean vehicles; Section 301 tariff policies; and R&D funding for domestic battery cells and materials."
You can find more data on corporate lobbying on Quiver Quantitative.
AMPX Insider Trading Activity
AMPX insiders have traded $AMPX stock on the open market 14 times in the past 6 months. Of those trades, 0 have been purchases and 14 have been sales.
Here’s a breakdown of recent trading of $AMPX stock by insiders over the last 6 months:
- DONALD R DIXON has made 0 purchases and 3 sales selling 142,895 shares for an estimated $2,544,664.
- KANG SUN has made 0 purchases and 3 sales selling 130,253 shares for an estimated $1,650,901.
- THOMAS M STEPIEN (Chief Executive Officer) has made 0 purchases and 5 sales selling 98,606 shares for an estimated $1,338,400.
- CONSTANTIN IONEL STEFAN (Chief Technology Officer) has made 0 purchases and 3 sales selling 61,701 shares for an estimated $788,171.
To track insider transactions, check out Quiver Quantitative's insider trading dashboard. You can access data on insider stock transactions through the Quiver Quantitative API insider transaction endpoint.
AMPX Hedge Fund Activity
We have seen 159 institutional investors add shares of AMPX stock to their portfolio, and 105 decrease their positions in their most recent quarter.
Here are some of the largest recent moves:
- DRIEHAUS CAPITAL MANAGEMENT LLC removed 2,448,909 shares (-64.5%) from their portfolio in Q2 2026, for an estimated $33,941,878
- JUPITER ASSET MANAGEMENT LTD added 2,133,397 shares (+inf%) to their portfolio in Q2 2026, for an estimated $29,568,882
- BLACKROCK, INC. added 2,109,481 shares (+22.9%) to their portfolio in Q2 2026, for an estimated $29,237,406
- MORGAN STANLEY added 1,943,338 shares (+61.5%) to their portfolio in Q2 2026, for an estimated $26,934,664
- UBS GROUP AG added 1,760,715 shares (+76.2%) to their portfolio in Q2 2026, for an estimated $24,403,509
- LMR PARTNERS LLP added 1,750,850 shares (+inf%) to their portfolio in Q2 2026, for an estimated $24,266,781
- MASSACHUSETTS FINANCIAL SERVICES CO /MA/ removed 1,518,492 shares (-75.0%) from their portfolio in Q2 2026, for an estimated $21,046,299
To track hedge funds' stock portfolios, check out Quiver Quantitative's institutional holdings dashboard. You can access data on hedge funds moves and 13F filings through the Quiver Quantitative API 13F endpoint.
This article is not financial advice. See Quiver Quantitative's disclaimers for more information.
