Anthony Grillo’s trading activity, as reflected in SEC Form 4 filings, shows a clear focus on shares of Littelfuse, Inc. (LFUS), with a single transaction in Highland Income Fund (HIO) in May 2025. Grillo’s overall trading history leans heavily toward buying, with $4.89 million in total purchases compared to $1.73 million in sales. The bulk of his LFUS acquisitions occurred in early 2025, including a significant purchase of $2.04 million on February 6, 2025, alongside three other purchases totaling over $3.5 million that same day. More recently, his activity has included smaller transactions, such as a $647 acquisition and a $23,298 purchase in March 2026, alongside sales totaling $1.87 million in February 2026—the largest being a $1.58 million disposal.
Grillo’s pattern suggests a long-term accumulation of LFUS shares, with sporadic sales likely tied to portfolio management. His only non-LFUS trade was a $11,520 purchase of HIO shares in May 2025, though this appears isolated. The recent sales in early 2026 mark a shift from his earlier buying trend, though the March 2026 acquisitions indicate continued interest in maintaining a position in LFUS. The filings do not specify an officer title, leaving his relationship to the companies unclear, but the data reflects a concentrated, largely buy-weighted strategy centered on LFUS.
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