Welcome to our dedicated page for Littelfuse SEC filings (Ticker: LFUS), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
The Littelfuse Inc (NASDAQ: LFUS) SEC filings page on Stock Titan brings together the company’s regulatory disclosures, helping investors review how this diversified industrial technology manufacturer reports its performance and material events. Littelfuse files annual reports on Form 10-K, quarterly updates on Form 10-Q, and current reports on Form 8-K, along with other required documents.
Recent Form 8-K filings illustrate how the company uses these reports to communicate important information. Littelfuse has filed 8-Ks to furnish quarterly earnings press releases, including segment-level data for its Electronics, Transportation, and Industrial businesses, as well as non-GAAP metrics such as organic net sales growth, adjusted operating income, adjusted EBITDA, and free cash flow. These filings also reference slide presentations and investor materials hosted on the company’s investor relations site.
Other 8-Ks document corporate actions and governance events. For example, Littelfuse filed an 8-K describing its entry into a membership interest purchase agreement to acquire Basler Electric Company, outlining key terms, conditions, and risk factors related to the transaction. Another 8-K reports on executive leadership changes within the Semiconductor Business of the Electronics segment.
On this page, users can access Littelfuse’s 10-K and 10-Q filings for detailed financial statements, risk factor discussions, and segment disclosures, as well as 8-Ks covering acquisitions, earnings releases, and leadership updates. Stock Titan’s AI-powered tools summarize lengthy filings, highlight important sections, and make it easier to interpret complex topics such as non-GAAP reconciliations, transaction agreements, and compensation-related disclosures. Investors can also review insider and governance-related filings, where available, to better understand the company’s corporate actions and reporting history.
Littelfuse, Inc. reported that director Holly Beth Paeper acquired 72 shares of common stock through a grant of restricted stock units under the Amended and Restated Littelfuse, Inc. Long-Term Incentive Plan. The units were awarded at $0.00 per share and will vest in full on the first anniversary of the grant date.
Littelfuse Inc. director Holly Beth Paeper filed an initial statement of beneficial ownership on Form 3. The filing lists her as a director of the company and does not report any transactions or specific share holdings in the provided data.
Littelfuse, Inc. expanded its Board of Directors from eight to nine members and appointed Holly B. Paeper as a new independent director, effective March 4, 2026. She also joined the Technology Committee and will serve until a successor is elected or upon earlier departure.
Paeper is President, Commercial HVAC Americas at Trane Technologies and has held senior roles at Corning, Eaton, and Intel. Littelfuse disclosed that since December 29, 2024 it sold products totaling approximately $19.0 million to Trane and its affiliates. As a non-employee director, she will receive standard director compensation, including a pro-rated restricted stock unit award.
Littelfuse director Kristina A. Cerniglia reported option exercises and a share sale. On February 24, 2026, she exercised stock options covering 911 and 1,432 shares of common stock that were granted in 2019 and 2020 and had vested in annual installments.
The exercises converted into 2,343 common shares, and on the same day she sold 2,343 shares of Littelfuse common stock at $368.38 per share in an open-market transaction. The sale was made under a pre-arranged Rule 10b5-1 trading plan adopted on November 18, 2025, and she held 4,255 shares directly after these transactions.
LFUS reports a Form 144 notice indicating proposed sales of common shares acquired on exercise of stock options, with transactions recorded as cash sales on 02/24/2026. The filing lists option exercise dates of 04/26/2019 and 04/23/2020 and quantities of 911 and 1,432 shares.
Littelfuse director Gordon Hunter reported a combination of option exercise and share sales. On February 20, he exercised a stock option for 911 shares at a price of $0.00 per option, receiving 911 shares of common stock at $199.24 per share.
That same day, he sold a total of 911 Littelfuse common shares in open-market transactions at per-share prices of $368.42, $367.65, and $366.61, with some trades executed as weighted-average prices within disclosed ranges. After these transactions, he directly owned 26,789 Littelfuse shares.
Littelfuse, Inc. reports fiscal 2025 net sales of $2,386.3 million, up from $2,190.8 million, led by the Electronics segment at $1,345.5 million, Transportation at $676.4 million, and Industrial at $364.4 million. Sales were geographically diversified, with 65% generated outside the U.S. and about 24% from China.
The company expanded through several deals, including the 2025 acquisition of Basler Electric, with annualized sales of roughly $130 million for $350.3 million in cash, and the Dortmund 200mm wafer fab in Germany for about €94 million. Backlog rose sharply to $1,070.9 million from $664.9 million, mostly scheduled for 2026.
Littelfuse recorded a non-cash goodwill impairment charge of $301.2 million in its Electronics Semiconductor reporting unit, after earlier impairments in 2024, while continuing to invest heavily in R&D at $106.9 million in 2025. Management highlights competitive, regulatory, tax, trade, cybersecurity, and climate-related risks, but points to a strong balance sheet, ~17,000 employees, and a strategy focused on high-growth power, infrastructure, and electrification markets.
Littelfuse Inc. director Anthony Grillo reported an option exercise and related share sales. On February 10, 2026, he exercised a stock option for 911 shares of common stock at an exercise price of $199.24 per share.
That same day, he sold a total of 5,000 common shares in open-market transactions, including 4,570 shares at a weighted average price of $346.13 and 390 shares at a weighted average price of $347.35, plus 40 shares at $348.47. After these transactions, he directly owned 70,334 Littelfuse common shares.
A Rule 144 notice has been filed for the planned sale of 5,000 shares of common stock through Merrill Lynch on the NASDAQ, with an aggregate market value of 1,731,156. The filing lists total common shares outstanding as 24,901,687.
The shares to be sold were acquired over several years mainly through vesting of restricted stock units (RSUs) and stock option exercises, with consideration described as compensation or cash. The seller represents that they do not know any undisclosed material adverse information about the issuer’s current or prospective operations.