Floyd F. Petersen, a director at $AMPH, sold 500 shares of the company on 04-01-2025 for an estimated $14,190. We received data on the trade from a recent SEC filing. This was a sale of approximately 0.7% of their shares of this class of stock. Following this trade, they now own 73,909 shares of this class of $AMPH stock.
$AMPH Insider Trading Activity
$AMPH insiders have traded $AMPH stock on the open market 10 times in the past 6 months. Of those trades, 0 have been purchases and 10 have been sales.
Here’s a breakdown of recent trading of $AMPH stock by insiders over the last 6 months:
- RONG ZHOU (SENIOR EVP, PRODUCTION CENTER) has made 0 purchases and 3 sales selling 21,893 shares for an estimated $1,009,744.
- RICHARD K PRINS has made 0 purchases and 2 sales selling 15,000 shares for an estimated $681,687.
- WILLIAM J PETERS (CFO, EVP & TREASURER) has made 0 purchases and 2 sales selling 11,657 shares for an estimated $503,038.
- YAKOB LIAWATIDEWI (EVP CORP ADMIN CENTER) sold 5,214 shares for an estimated $271,388
- FLOYD F. PETERSEN has made 0 purchases and 2 sales selling 1,500 shares for an estimated $42,176.
To track insider transactions, check out Quiver Quantitative's insider trading dashboard.
$AMPH Hedge Fund Activity
We have seen 115 institutional investors add shares of $AMPH stock to their portfolio, and 141 decrease their positions in their most recent quarter.
Here are some of the largest recent moves:
- PACER ADVISORS, INC. added 1,347,775 shares (+51977.4%) to their portfolio in Q4 2024, for an estimated $50,042,885
- FEDERATED HERMES, INC. removed 1,123,613 shares (-57.7%) from their portfolio in Q4 2024, for an estimated $41,719,750
- BOSTON TRUST WALDEN CORP added 439,281 shares (+81.4%) to their portfolio in Q4 2024, for an estimated $16,310,503
- BOSTON PARTNERS added 426,636 shares (+inf%) to their portfolio in Q4 2024, for an estimated $15,840,994
- BOONE CAPITAL MANAGEMENT LLC removed 316,556 shares (-100.0%) from their portfolio in Q4 2024, for an estimated $11,753,724
- TD ASSET MANAGEMENT INC removed 294,752 shares (-13.8%) from their portfolio in Q4 2024, for an estimated $10,944,141
- WEALTHFRONT ADVISERS LLC added 249,605 shares (+inf%) to their portfolio in Q4 2024, for an estimated $9,267,833
To track hedge funds' stock portfolios, check out Quiver Quantitative's institutional holdings dashboard.
This article is not financial advice. See Quiver Quantitative's disclaimers for more information.
