{"transactions":[{"id":3603106,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2019-03-11T21:09:00.000Z","date":"2019-03-11","kind":"other","acquired":true,"shares":30,"price":190.64,"value":5719.2,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares acquired pursuant to reinvestment of dividends on shares held pursuant to a deferred compensation plan."}],"balance_after":28355,"source":{"system":"sec-edgar","filing":"0001567619-19-006572","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761919006572/doc1.xml","form_type":"4"}},{"id":3740341,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2018-12-07T22:17:43.000Z","date":"2018-12-07","kind":"other","acquired":true,"shares":49,"price":176.18,"value":8632.82,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares acquired pursuant to reinvestment of dividends on shares held pursuant to a deferred compensation plan."}],"balance_after":28325,"source":{"system":"sec-edgar","filing":"0001567619-18-007501","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761918007501/doc1.xml","form_type":"4"}},{"id":3757849,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2018-11-20T12:57:27.000Z","date":"2018-11-19","kind":"exercise","acquired":false,"shares":315,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The option for 945 shares vests in increments of one third annually beginning on the first anniversary of the April 28, 2017 date of grant."}],"balance_after":630,"derivative":{"exercise_price":154.15,"expiration_date":"2024-04-28","underlying":"Common Stock","underlying_shares":315},"source":{"system":"sec-edgar","filing":"0001567619-18-006709","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761918006709/doc1.xml","form_type":"4"}},{"id":3757848,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2018-11-20T12:57:27.000Z","date":"2018-11-19","kind":"exercise","acquired":false,"shares":800,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The option for 1,200 shares vests in increments of one third annually beginning on the first anniversary of the April 22, 2016 date of grant."}],"balance_after":400,"derivative":{"exercise_price":120.15,"expiration_date":"2023-04-22","underlying":"Common Stock","underlying_shares":800},"source":{"system":"sec-edgar","filing":"0001567619-18-006709","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761918006709/doc1.xml","form_type":"4"}},{"id":3757847,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2018-11-20T12:57:27.000Z","date":"2018-11-19","kind":"exercise","acquired":false,"shares":1447,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The option for 1,447 shares vested in increments of one third annually beginning on the first anniversary of the April 24, 2015 date of grant."}],"balance_after":0,"derivative":{"exercise_price":96.15,"expiration_date":"2022-04-24","underlying":"Common Stock","underlying_shares":1447},"source":{"system":"sec-edgar","filing":"0001567619-18-006709","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761918006709/doc1.xml","form_type":"4"}},{"id":3757846,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2018-11-20T12:57:27.000Z","date":"2018-11-19","kind":"exercise","acquired":false,"shares":1350,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The option for 1,350 shares vested in increments of one third annually beginning on the first anniversary of the April 25, 2014 date of grant."}],"balance_after":0,"derivative":{"exercise_price":94.84,"expiration_date":"2021-04-25","underlying":"Common Stock","underlying_shares":1350},"source":{"system":"sec-edgar","filing":"0001567619-18-006709","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761918006709/doc1.xml","form_type":"4"}},{"id":3757845,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2018-11-20T12:57:27.000Z","date":"2018-11-19","kind":"exercise","acquired":true,"shares":315,"price":154.15,"value":48557.25,"ownership":{"direct":true},"balance_after":28276,"source":{"system":"sec-edgar","filing":"0001567619-18-006709","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761918006709/doc1.xml","form_type":"4"}},{"id":3757844,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2018-11-20T12:57:27.000Z","date":"2018-11-19","kind":"exercise","acquired":true,"shares":800,"price":120.15,"value":96120.0,"ownership":{"direct":true},"balance_after":27961,"source":{"system":"sec-edgar","filing":"0001567619-18-006709","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761918006709/doc1.xml","form_type":"4"}},{"id":3757843,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2018-11-20T12:57:27.000Z","date":"2018-11-19","kind":"exercise","acquired":true,"shares":1447,"price":96.15,"value":139129.05,"ownership":{"direct":true},"balance_after":27161,"source":{"system":"sec-edgar","filing":"0001567619-18-006709","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761918006709/doc1.xml","form_type":"4"}},{"id":3757842,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2018-11-20T12:57:27.000Z","date":"2018-11-19","kind":"exercise","acquired":true,"shares":1350,"price":94.84,"value":128034.0,"ownership":{"direct":true},"balance_after":25714,"source":{"system":"sec-edgar","filing":"0001567619-18-006709","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761918006709/doc1.xml","form_type":"4"}},{"id":3822728,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2018-09-07T20:02:15.000Z","date":"2018-09-07","kind":"other","acquired":true,"shares":37,"price":220.75,"value":8167.75,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares acquired pursuant to reinvestment of dividends on shares held pursuant to a deferred compensation plan."}],"balance_after":24364,"source":{"system":"sec-edgar","filing":"0001567619-18-002286","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761918002286/doc1.xml","form_type":"4"}},{"id":3891544,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2018-06-18T13:36:49.000Z","date":"2018-06-14","kind":"exercise","acquired":false,"shares":1716,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The option for 1,716 shares vested in increments of one third annually beginning on the first anniversary of the April 26, 2013 date of grant."}],"balance_after":0,"derivative":{"exercise_price":66.68,"expiration_date":"2020-04-26","underlying":"Common Stock","underlying_shares":1716},"source":{"system":"sec-edgar","filing":"0001140361-18-028884","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/889331/000114036118028884/doc1.xml","form_type":"4"}},{"id":3891543,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2018-06-18T13:36:49.000Z","date":"2018-06-14","kind":"exercise","acquired":false,"shares":1648,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The option for 1,648 shares vested in increments of one third annually beginning on the first anniversary of the April 27, 2012 date of grant."}],"balance_after":0,"derivative":{"exercise_price":63.09,"expiration_date":"2019-04-27","underlying":"Common Stock","underlying_shares":1648},"source":{"system":"sec-edgar","filing":"0001140361-18-028884","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/889331/000114036118028884/doc1.xml","form_type":"4"}},{"id":3891542,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2018-06-18T13:36:49.000Z","date":"2018-06-14","kind":"sale","acquired":false,"shares":3364,"price":232.32,"value":781524.48,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The shares were sold in multiple transactions at prices ranging from $232.13 to $232.54. This amount represents the weighted average sale price of such transactions. The reporting person undertakes to provide full information regarding the number of shares sold at each separate price upon request of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer."}],"balance_after":24327,"source":{"system":"sec-edgar","filing":"0001140361-18-028884","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/889331/000114036118028884/doc1.xml","form_type":"4"}},{"id":3891541,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2018-06-18T13:36:49.000Z","date":"2018-06-14","kind":"exercise","acquired":true,"shares":1716,"price":66.68,"value":114422.88,"ownership":{"direct":true},"balance_after":27691,"source":{"system":"sec-edgar","filing":"0001140361-18-028884","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/889331/000114036118028884/doc1.xml","form_type":"4"}},{"id":3891540,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2018-06-18T13:36:49.000Z","date":"2018-06-14","kind":"exercise","acquired":true,"shares":1648,"price":63.09,"value":103972.32,"ownership":{"direct":true},"balance_after":25975,"source":{"system":"sec-edgar","filing":"0001140361-18-028884","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000114036118028884/doc1.xml","form_type":"4"}},{"id":3899170,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2018-06-11T14:09:10.000Z","date":"2018-06-08","kind":"other","acquired":true,"shares":29,"price":225.53,"value":6540.37,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares acquired pursuant to reinvestment of dividends on shares held pursuant to a deferred compensation plan."}],"balance_after":24327,"source":{"system":"sec-edgar","filing":"0001140361-18-027958","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000114036118027958/doc1.xml","form_type":"4"}},{"id":3952622,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2018-05-01T15:28:00.000Z","date":"2018-04-27","kind":"grant","acquired":true,"shares":800,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The option vests in increments of one third annually beginning on the first anniversary of the date of grant."}],"balance_after":800,"derivative":{"exercise_price":192.59,"expiration_date":"2025-04-27","underlying":"Common Stock","underlying_shares":800},"source":{"system":"sec-edgar","filing":"0001140361-18-020779","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/889331/000114036118020779/doc1.xml","form_type":"4"}},{"id":3952621,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2018-05-01T15:28:00.000Z","date":"2018-04-27","kind":"grant","acquired":true,"shares":468,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the grant of restricted stock units to the reporting person under the Amended and Restated Littelfuse, Inc. Long-Term Incentive Plan. The grant vests 33% annually on the first three anniversaries of the grant date."}],"balance_after":24298,"source":{"system":"sec-edgar","filing":"0001140361-18-020779","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000114036118020779/doc1.xml","form_type":"4"}},{"id":3999451,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2018-03-13T17:34:32.000Z","date":"2018-03-13","kind":"other","acquired":true,"shares":13,"price":224.8,"value":2922.4,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares acquired pursuant to reinvestment of dividends on shares held pursuant to a deferred compensation plan."}],"balance_after":23830,"source":{"system":"sec-edgar","filing":"0001140361-18-013177","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000114036118013177/doc1.xml","form_type":"4"}},{"id":4006633,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2018-03-08T18:45:37.000Z","date":"2018-03-07","kind":"sale","acquired":false,"shares":500,"price":214,"value":107000.0,"ownership":{"direct":true},"balance_after":23817,"source":{"system":"sec-edgar","filing":"0001140361-18-012568","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000114036118012568/doc1.xml","form_type":"4"}},{"id":4025271,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2018-03-01T23:54:49.000Z","date":"2018-02-27","kind":"sale","acquired":false,"shares":250,"price":213,"value":53250.0,"ownership":{"direct":true},"balance_after":24317,"source":{"system":"sec-edgar","filing":"0001140361-18-011391","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/889331/000114036118011391/doc1.xml","form_type":"4"}},{"id":4025270,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2018-03-01T23:54:49.000Z","date":"2018-02-21","kind":"sale","acquired":false,"shares":250,"price":210,"value":52500.0,"ownership":{"direct":true},"balance_after":24567,"source":{"system":"sec-edgar","filing":"0001140361-18-011391","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000114036118011391/doc1.xml","form_type":"4"}},{"id":4028491,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2018-02-28T20:45:25.000Z","date":"2018-02-27","kind":"exercise","acquired":false,"shares":1763,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The option for 1,763 shares vested in increments of one third annually beginning on the first anniversary of the April 29, 2011 date of grant"}],"balance_after":0,"derivative":{"exercise_price":62.21,"expiration_date":"2018-04-29","underlying":"Common Stock","underlying_shares":1763},"source":{"system":"sec-edgar","filing":"0001140361-18-010788","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/889331/000114036118010788/doc1.xml","form_type":"4"}},{"id":4028490,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2018-02-28T20:45:25.000Z","date":"2018-02-27","kind":"sale","acquired":false,"shares":1763,"price":214,"value":377282.0,"ownership":{"direct":true},"balance_after":24817,"source":{"system":"sec-edgar","filing":"0001140361-18-010788","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/889331/000114036118010788/doc1.xml","form_type":"4"}},{"id":4028489,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2018-02-28T20:45:25.000Z","date":"2018-02-27","kind":"exercise","acquired":true,"shares":1763,"price":62.21,"value":109676.23,"ownership":{"direct":true},"balance_after":26580,"source":{"system":"sec-edgar","filing":"0001140361-18-010788","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000114036118010788/doc1.xml","form_type":"4"}},{"id":4138428,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-12-08T17:50:34.000Z","date":"2017-12-08","kind":"other","acquired":true,"shares":38,"price":196.92,"value":7482.96,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares acquired pursuant to reinvestment of dividends on shares held pursuant to a deferred compensation plan."}],"balance_after":24817,"source":{"system":"sec-edgar","filing":"0001140361-17-045422","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000114036117045422/doc1.xml","form_type":"4"}},{"id":4213075,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-09-11T16:35:43.000Z","date":"2017-09-11","kind":"other","acquired":true,"shares":40,"price":186.06,"value":7442.4,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares acquired pursuant to reinvestment of dividends on shares held pursuant to a deferred compensation plan."}],"balance_after":24779,"source":{"system":"sec-edgar","filing":"0001140361-17-034997","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000114036117034997/doc1.xml","form_type":"4"}},{"id":4282742,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-06-14T20:17:01.000Z","date":"2017-06-09","kind":"other","acquired":true,"shares":39,"price":167.81,"value":6544.59,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares acquired pursuant to reinvestment of dividends on shares held pursuant to a deferred compensation plan."}],"balance_after":24739,"source":{"system":"sec-edgar","filing":"0001140361-17-024978","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000114036117024978/doc1.xml","form_type":"4"}},{"id":4340896,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2017-05-01T18:34:47.000Z","date":"2017-04-28","kind":"grant","acquired":true,"shares":945,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The option vests in increments of one third annually beginning on the first anniversary of the date of grant."}],"balance_after":945,"derivative":{"exercise_price":154.15,"expiration_date":"2024-04-28","underlying":"Common Stock","underlying_shares":945},"source":{"system":"sec-edgar","filing":"0001140361-17-017552","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/889331/000114036117017552/doc1.xml","form_type":"4"}},{"id":4340895,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-05-01T18:34:47.000Z","date":"2017-04-28","kind":"grant","acquired":true,"shares":505,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the grant of restricted stock units to the reporting person under the Amended and Restated Littelfuse Long-Term Incentive Plan. The grant vests 33% annually on the first three anniversaries of the grant date."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Amount of securities beneficially owned includes a total of 42 shares acquired on March 15, 2017, pursuant to reporting person's reinvestment of dividends."}],"balance_after":24700,"source":{"system":"sec-edgar","filing":"0001140361-17-017552","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000114036117017552/doc1.xml","form_type":"4"}},{"id":4458054,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-02-10T16:57:02.000Z","date":"2014-11-18","kind":"gift","acquired":false,"shares":1137,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction involved a gift of securities by the reporting person to a charitable foundation, and is being reported late due to an administrative error."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"The reporting person's gifted shares have been inadvertently included in the reporting person's beneficial ownership in the Form 4s filed by the reporting person after the date of this transaction. Amount of securities reflects securities beneficially owned as of February 10, 2017."}],"balance_after":24153,"source":{"system":"sec-edgar","filing":"0001384707-17-000015","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000138470717000015/primary_doc.xml","form_type":"5"}},{"id":4460312,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock option (right to buy)","published_at":"2017-02-09T20:28:57.000Z","date":"2017-02-09","kind":"exercise","acquired":false,"shares":1504,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":0,"derivative":{"exercise_price":42.13,"exercise_date":"2011-04-30","expiration_date":"2017-04-30","underlying":"Common Stock","underlying_shares":1504},"source":{"system":"sec-edgar","filing":"0001384707-17-000012","document":"primary_doc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/889331/000138470717000012/primary_doc.xml","form_type":"4"}},{"id":4460311,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-02-09T20:28:57.000Z","date":"2017-02-09","kind":"sale","acquired":false,"shares":1504,"price":163,"value":245152.0,"ownership":{"direct":true},"balance_after":25290,"source":{"system":"sec-edgar","filing":"0001384707-17-000012","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/889331/000138470717000012/primary_doc.xml","form_type":"4"}},{"id":4460310,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-02-09T20:28:57.000Z","date":"2017-02-09","kind":"exercise","acquired":true,"shares":1504,"price":42.13,"value":63363.52,"ownership":{"direct":true},"balance_after":26794,"source":{"system":"sec-edgar","filing":"0001384707-17-000012","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000138470717000012/primary_doc.xml","form_type":"4"}},{"id":4462502,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock option (right to buy)","published_at":"2017-02-08T21:50:32.000Z","date":"2017-02-06","kind":"exercise","acquired":false,"shares":220,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":1504,"derivative":{"exercise_price":42.13,"exercise_date":"2011-04-30","expiration_date":"2017-04-30","underlying":"Common Stock","underlying_shares":220},"source":{"system":"sec-edgar","filing":"0001384707-17-000011","document":"primary_doc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/889331/000138470717000011/primary_doc.xml","form_type":"4"}},{"id":4462501,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock option (right to buy)","published_at":"2017-02-08T21:50:32.000Z","date":"2017-02-06","kind":"exercise","acquired":false,"shares":1000,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":0,"derivative":{"exercise_price":23.48,"exercise_date":"2007-06-14","expiration_date":"2017-06-14","underlying":"Common Stock","underlying_shares":1000},"source":{"system":"sec-edgar","filing":"0001384707-17-000011","document":"primary_doc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/889331/000138470717000011/primary_doc.xml","form_type":"4"}},{"id":4462500,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-02-08T21:50:32.000Z","date":"2017-02-06","kind":"sale","acquired":true,"shares":1220,"price":163,"value":198860.0,"ownership":{"direct":true},"balance_after":25290,"source":{"system":"sec-edgar","filing":"0001384707-17-000011","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/889331/000138470717000011/primary_doc.xml","form_type":"4"}},{"id":4462499,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-02-08T21:50:32.000Z","date":"2017-02-06","kind":"exercise","acquired":true,"shares":220,"price":42.13,"value":9268.6,"ownership":{"direct":true},"balance_after":26510,"source":{"system":"sec-edgar","filing":"0001384707-17-000011","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/889331/000138470717000011/primary_doc.xml","form_type":"4"}},{"id":4462498,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-02-08T21:50:32.000Z","date":"2017-02-06","kind":"exercise","acquired":true,"shares":1000,"price":23.48,"value":23480.0,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Amount of securities beneficially owned includes a total of 42 shares acquired on December 12, 2016, pursuant to reporting person's reinvestment of dividends."}],"balance_after":26290,"source":{"system":"sec-edgar","filing":"0001384707-17-000011","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000138470717000011/primary_doc.xml","form_type":"4"}},{"id":4540415,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common stock","published_at":"2016-11-29T17:05:01.000Z","date":"2016-11-25","kind":"sale","acquired":false,"shares":1456,"price":152,"value":221312.0,"ownership":{"direct":true},"balance_after":25248,"source":{"system":"sec-edgar","filing":"0001209191-16-152259","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000120919116152259/doc4.xml","form_type":"4"}},{"id":4602943,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":159282,"kind":"person","name":"SCHUBEL RONALD L","position":1,"cik":"0001144957","reported_name":"SCHUBEL RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common stock","published_at":"2016-09-15T19:42:26.000Z","date":"2016-09-14","kind":"grant","acquired":true,"shares":52,"price":122.08,"value":6348.16,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares acquired pursuant to reinvestment of dividends on shares held pursuant to a deferred compensation plan."}],"balance_after":26704,"source":{"system":"sec-edgar","filing":"0001209191-16-141565","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000120919116141565/doc4.xml","form_type":"4"}}]}