{"transactions":[{"id":1046383,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"officer":true,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2025-09-08T20:26:45.000Z","date":"2025-09-05","kind":"grant","planned":false,"acquired":true,"shares":6,"price":259.58,"value":1557.48,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares accrued as payment of dividends on unvested restricted stock units."}],"balance_after":3433,"source":{"system":"sec-edgar","filing":"0000889331-25-000175","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000088933125000175/form4.xml","form_type":"4"}},{"id":1056255,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"officer":true,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Stock Option (right to buy)","published_at":"2025-08-26T20:18:53.000Z","date":"2025-08-25","kind":"exercise","planned":false,"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 2,401 shares vested in increments of one third annually beginning on the first anniversary of the April 26, 2019 date of grant."}],"balance_after":0,"derivative":{"exercise_price":199.24,"expiration_date":"2026-04-26","underlying":"Common Stock","underlying_shares":800},"source":{"system":"sec-edgar","filing":"0000889331-25-000164","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/889331/000088933125000164/form4.xml","form_type":"4"}},{"id":1056254,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"officer":true,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Stock Option (right to buy)","published_at":"2025-08-26T20:18:53.000Z","date":"2025-08-25","kind":"exercise","planned":false,"acquired":false,"shares":3604,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The option for 5,353 shares vested in increments of one third annually beginning on the first anniversary of the April 23, 2020 date of grant."}],"balance_after":0,"derivative":{"exercise_price":132.08,"expiration_date":"2027-04-23","underlying":"Common Stock","underlying_shares":3604},"source":{"system":"sec-edgar","filing":"0000889331-25-000164","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/889331/000088933125000164/form4.xml","form_type":"4"}},{"id":1056253,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"officer":true,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Stock Option (right to buy)","published_at":"2025-08-26T20:18:53.000Z","date":"2025-08-25","kind":"exercise","planned":false,"acquired":false,"shares":5293,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The option for 5,293 shares vested in increments of one third annually beginning on the first anniversary of the July 10, 2020 date of grant."}],"balance_after":0,"derivative":{"exercise_price":166.63,"expiration_date":"2027-07-10","underlying":"Common Stock","underlying_shares":5293},"source":{"system":"sec-edgar","filing":"0000889331-25-000164","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/889331/000088933125000164/form4.xml","form_type":"4"}},{"id":1056252,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"officer":true,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2025-08-26T20:18:53.000Z","date":"2025-08-25","kind":"sale","planned":false,"acquired":false,"shares":1471,"price":262.73,"value":386475.83,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The shares were sold in multiple transactions at prices ranging from $262.22 to $262.68, inclusive. 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":3427,"source":{"system":"sec-edgar","filing":"0000889331-25-000164","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/889331/000088933125000164/form4.xml","form_type":"4"}},{"id":1056251,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"officer":true,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2025-08-26T20:18:53.000Z","date":"2025-08-25","kind":"sale","planned":false,"acquired":false,"shares":3522,"price":261.75,"value":921883.5,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The shares were sold in multiple transactions at prices ranging from $261.20 to $262.13, inclusive. 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":4898,"source":{"system":"sec-edgar","filing":"0000889331-25-000164","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/889331/000088933125000164/form4.xml","form_type":"4"}},{"id":1056250,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"officer":true,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2025-08-26T20:18:53.000Z","date":"2025-08-25","kind":"sale","planned":false,"acquired":false,"shares":8217,"price":261.06,"value":2145130.02,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The shares were sold in multiple transactions at prices ranging from $260.43 to $261.42, inclusive. 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":8420,"source":{"system":"sec-edgar","filing":"0000889331-25-000164","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/889331/000088933125000164/form4.xml","form_type":"4"}},{"id":1056249,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"officer":true,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2025-08-26T20:18:53.000Z","date":"2025-08-25","kind":"exercise","planned":false,"acquired":true,"shares":800,"price":199.24,"value":159392.0,"ownership":{"direct":true},"balance_after":16637,"source":{"system":"sec-edgar","filing":"0000889331-25-000164","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/889331/000088933125000164/form4.xml","form_type":"4"}},{"id":1056248,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"officer":true,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2025-08-26T20:18:53.000Z","date":"2025-08-25","kind":"exercise","planned":false,"acquired":true,"shares":3604,"price":132.08,"value":476016.32,"ownership":{"direct":true},"balance_after":15837,"source":{"system":"sec-edgar","filing":"0000889331-25-000164","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/889331/000088933125000164/form4.xml","form_type":"4"}},{"id":1056247,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"officer":true,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2025-08-26T20:18:53.000Z","date":"2025-08-25","kind":"exercise","planned":false,"acquired":true,"shares":5293,"price":166.63,"value":881972.59,"ownership":{"direct":true},"balance_after":12233,"source":{"system":"sec-edgar","filing":"0000889331-25-000164","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000088933125000164/form4.xml","form_type":"4"}},{"id":1118807,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"officer":true,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2025-06-09T18:51:21.000Z","date":"2025-06-05","kind":"grant","planned":false,"acquired":true,"shares":6,"price":214.18,"value":1285.08,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares accrued as payment of dividends on unvested restricted stock units."}],"balance_after":6940,"source":{"system":"sec-edgar","filing":"0000889331-25-000128","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000088933125000128/form4.xml","form_type":"4"}},{"id":1164423,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"officer":true,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2025-04-29T21:07:08.000Z","date":"2025-04-28","kind":"tax_withholding","planned":false,"acquired":false,"shares":214,"price":179.04,"value":38314.56,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Closing price per share on the trading date of the vesting of restricted stock units or on the next preceding trading date if the vesting occurs on a non-trading date."}],"balance_after":6934,"source":{"system":"sec-edgar","filing":"0000889331-25-000096","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/889331/000088933125000096/form4.xml","form_type":"4"}},{"id":1164422,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"officer":true,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2025-04-29T21:07:08.000Z","date":"2025-04-27","kind":"tax_withholding","planned":false,"acquired":false,"shares":210,"price":176.06,"value":36972.6,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Closing price per share on the trading date of the vesting of restricted stock units or on the next preceding trading date if the vesting occurs on a non-trading date."}],"balance_after":7148,"source":{"system":"sec-edgar","filing":"0000889331-25-000096","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/889331/000088933125000096/form4.xml","form_type":"4"}},{"id":1164421,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"officer":true,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2025-04-29T21:07:08.000Z","date":"2025-04-25","kind":"tax_withholding","planned":false,"acquired":false,"shares":236,"price":176.06,"value":41550.16,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Closing price per share on the trading date of the vesting of restricted stock units or on the next preceding trading date if the vesting occurs on a non-trading date."}],"balance_after":7358,"source":{"system":"sec-edgar","filing":"0000889331-25-000096","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000088933125000096/form4.xml","form_type":"4"}},{"id":1165146,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"officer":true,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2025-04-28T18:40:33.000Z","date":"2025-04-24","kind":"grant","planned":false,"acquired":true,"shares":1972,"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 pursuant to the Amended and Restated Littelfuse, Inc. Long-Term Incentive Plan, as amended. The grant vests in increments of one-third annually beginning on the first anniversary of the date of grant."}],"balance_after":7594,"source":{"system":"sec-edgar","filing":"0000889331-25-000060","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000088933125000060/form4.xml","form_type":"4"}},{"id":1534185,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"officer":true,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2024-04-29T18:49:58.000Z","date":"2024-04-28","kind":"tax_withholding","planned":false,"acquired":false,"shares":209,"price":231.64,"value":48412.76,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Closing price per share on the trading date preceding the vesting of restricted stock units."}],"balance_after":5622,"source":{"system":"sec-edgar","filing":"0000889331-24-000120","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/889331/000088933124000120/form4.xml","form_type":"4"}},{"id":1534184,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"officer":true,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2024-04-29T18:49:58.000Z","date":"2024-04-27","kind":"tax_withholding","planned":false,"acquired":false,"shares":205,"price":231.64,"value":47486.2,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Closing price per share on the trading date preceding the vesting of restricted stock units."}],"balance_after":5831,"source":{"system":"sec-edgar","filing":"0000889331-24-000120","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000088933124000120/form4.xml","form_type":"4"}},{"id":1534144,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"officer":true,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Stock Option (right to buy)","published_at":"2024-04-29T14:02:59.000Z","date":"2024-04-25","kind":"grant","planned":false,"acquired":true,"shares":4432,"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":4432,"derivative":{"exercise_price":230.39,"expiration_date":"2031-04-25","underlying":"Common Stock","underlying_shares":4432},"source":{"system":"sec-edgar","filing":"0000889331-24-000078","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/889331/000088933124000078/form4.xml","form_type":"4"}},{"id":1534143,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"officer":true,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2024-04-29T14:02:59.000Z","date":"2024-04-25","kind":"grant","planned":false,"acquired":true,"shares":1505,"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 pursuant to the Amended and Restated Littelfuse, Inc. Long-Term Incentive Plan, as amended. The grant vests in increments of one-third annually beginning on the first anniversary of the date of grant."}],"balance_after":6036,"source":{"system":"sec-edgar","filing":"0000889331-24-000078","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000088933124000078/form4.xml","form_type":"4"}},{"id":1537133,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"officer":true,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2024-04-23T21:50:01.000Z","date":"2024-04-22","kind":"tax_withholding","planned":false,"acquired":false,"shares":135,"price":228.84,"value":30893.4,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Closing price per share on the trading date preceding the vesting of restricted stock units."}],"balance_after":4531,"source":{"system":"sec-edgar","filing":"0000889331-24-000055","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000088933124000055/form4.xml","form_type":"4"}},{"id":1910678,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"officer":true,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2023-05-01T20:50:56.000Z","date":"2023-04-28","kind":"tax_withholding","planned":false,"acquired":false,"shares":196,"price":242.24,"value":47479.04,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Closing price per share on date of vesting of restricted stock units."}],"balance_after":4666,"source":{"system":"sec-edgar","filing":"0000889331-23-000074","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000088933123000074/form4.xml","form_type":"4"}},{"id":1910680,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"officer":true,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Stock Option (right to buy)","published_at":"2023-05-01T14:35:38.000Z","date":"2023-04-27","kind":"grant","planned":false,"acquired":true,"shares":4108,"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":4108,"derivative":{"exercise_price":240.76,"expiration_date":"2030-04-27","underlying":"Common Stock","underlying_shares":4108},"source":{"system":"sec-edgar","filing":"0000889331-23-000054","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/889331/000088933123000054/form4.xml","form_type":"4"}},{"id":1910679,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"officer":true,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2023-05-01T14:35:38.000Z","date":"2023-04-27","kind":"grant","planned":false,"acquired":true,"shares":1338,"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 pursuant to the Amended and Restated Littelfuse, Inc. Long-Term Incentive Plan. The grant vests in increments of one-third annually beginning on the first anniversary of the date of grant."}],"balance_after":4862,"source":{"system":"sec-edgar","filing":"0000889331-23-000054","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000088933123000054/form4.xml","form_type":"4"}},{"id":1914452,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"officer":true,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2023-04-25T20:06:52.000Z","date":"2023-04-23","kind":"tax_withholding","planned":false,"acquired":false,"shares":216,"price":245.7,"value":53071.2,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Closing price per share on the trading date preceding the vesting of restricted stock units."}],"balance_after":3524,"source":{"system":"sec-edgar","filing":"0000889331-23-000018","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/889331/000088933123000018/form4.xml","form_type":"4"}},{"id":1914451,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"officer":true,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2023-04-25T20:06:52.000Z","date":"2023-04-22","kind":"tax_withholding","planned":false,"acquired":false,"shares":126,"price":245.7,"value":30958.2,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Closing price per share on the trading date preceding the vesting of restricted stock units."}],"balance_after":3740,"source":{"system":"sec-edgar","filing":"0000889331-23-000018","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000088933123000018/form4.xml","form_type":"4"}},{"id":2287032,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Stock Option (right to buy)","published_at":"2022-05-02T17:32:11.000Z","date":"2022-04-28","kind":"grant","acquired":true,"shares":4465,"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":4465,"derivative":{"exercise_price":231.64,"expiration_date":"2029-04-28","underlying":"Common Stock","underlying_shares":4465},"source":{"system":"sec-edgar","filing":"0001567619-22-009259","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761922009259/doc1.xml","form_type":"4"}},{"id":2287031,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2022-05-02T17:32:11.000Z","date":"2022-04-28","kind":"grant","acquired":true,"shares":1365,"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 pursuant to the Amended and Restated Littelfuse, Inc. Long-Term Incentive Plan. The grant vests in increments of one-third annually beginning on the first anniversary of the date of grant."}],"balance_after":3866,"source":{"system":"sec-edgar","filing":"0001567619-22-009259","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761922009259/doc1.xml","form_type":"4"}},{"id":2289070,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2022-04-28T16:33:39.000Z","date":"2022-04-26","kind":"tax_withholding","acquired":false,"shares":106,"price":224.38,"value":23784.28,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Closing price per share on date of vesting of restricted stock unit."}],"balance_after":2501,"source":{"system":"sec-edgar","filing":"0001567619-22-009100","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761922009100/doc1.xml","form_type":"4"}},{"id":2290623,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2022-04-26T21:31:40.000Z","date":"2022-04-23","kind":"tax_withholding","acquired":false,"shares":226,"price":231.51,"value":52321.26,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Closing price per share on the preceding trading date of the vesting of restricted stock units."}],"balance_after":2607,"source":{"system":"sec-edgar","filing":"0001567619-22-008979","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761922008979/doc1.xml","form_type":"4"}},{"id":2290622,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2022-04-26T21:31:40.000Z","date":"2022-04-22","kind":"tax_withholding","acquired":false,"shares":132,"price":231.51,"value":30559.32,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Closing price per share on date of vesting of restricted stock unit."}],"balance_after":2833,"source":{"system":"sec-edgar","filing":"0001567619-22-008979","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761922008979/doc1.xml","form_type":"4"}},{"id":2605982,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Stock Option (right to buy)","published_at":"2021-08-12T17:12:16.000Z","date":"2021-08-10","kind":"exercise","acquired":false,"shares":1749,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The option for 5,353 shares vested in increments of one third annually beginning on the first anniversary of the April 23, 2020 date of grant."}],"balance_after":3604,"derivative":{"exercise_price":132.08,"expiration_date":"2027-04-23","underlying":"Common Stock","underlying_shares":1749},"source":{"system":"sec-edgar","filing":"0001567619-21-015184","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761921015184/doc1.xml","form_type":"4"}},{"id":2605981,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Stock Option (right to buy)","published_at":"2021-08-12T17:12:16.000Z","date":"2021-08-10","kind":"exercise","acquired":false,"shares":1468,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The option for 2,401 shares vested in increments of one third annually beginning on the first anniversary of the April 26, 2019 date of grant."}],"balance_after":800,"derivative":{"exercise_price":199.24,"expiration_date":"2026-04-26","underlying":"Common Stock","underlying_shares":1468},"source":{"system":"sec-edgar","filing":"0001567619-21-015184","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761921015184/doc1.xml","form_type":"4"}},{"id":2605980,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Stock Option (right to buy)","published_at":"2021-08-12T17:12:16.000Z","date":"2021-08-10","kind":"exercise","acquired":false,"shares":683,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The option for 2,050 shares vested in increments of one third annually beginning on the first anniversary of the April 27, 2018 date of grant."}],"balance_after":0,"derivative":{"exercise_price":192.59,"expiration_date":"2025-04-27","underlying":"Common Stock","underlying_shares":683},"source":{"system":"sec-edgar","filing":"0001567619-21-015184","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761921015184/doc1.xml","form_type":"4"}},{"id":2605979,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2021-08-12T17:12:16.000Z","date":"2021-08-10","kind":"sale","acquired":false,"shares":5600,"price":269.12,"value":1507072.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The shares were sold in multiple transactions at prices ranging from $269.00 to $269.31, inclusive. 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":2965,"source":{"system":"sec-edgar","filing":"0001567619-21-015184","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761921015184/doc1.xml","form_type":"4"}},{"id":2605978,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2021-08-12T17:12:16.000Z","date":"2021-08-10","kind":"exercise","acquired":true,"shares":1749,"price":132.08,"value":231007.92,"ownership":{"direct":true},"balance_after":8565,"source":{"system":"sec-edgar","filing":"0001567619-21-015184","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761921015184/doc1.xml","form_type":"4"}},{"id":2605977,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2021-08-12T17:12:16.000Z","date":"2021-08-10","kind":"exercise","acquired":true,"shares":1468,"price":199.24,"value":292484.32,"ownership":{"direct":true},"balance_after":6816,"source":{"system":"sec-edgar","filing":"0001567619-21-015184","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761921015184/doc1.xml","form_type":"4"}},{"id":2605976,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2021-08-12T17:12:16.000Z","date":"2021-08-10","kind":"exercise","acquired":true,"shares":683,"price":192.59,"value":131538.97,"ownership":{"direct":true},"balance_after":5348,"source":{"system":"sec-edgar","filing":"0001567619-21-015184","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761921015184/doc1.xml","form_type":"4"}},{"id":2736407,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2021-04-29T19:52:31.000Z","date":"2021-04-27","kind":"tax_withholding","acquired":false,"shares":94,"price":275.26,"value":25874.44,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Closing price per share on date of vesting of restricted stock units."}],"balance_after":4665,"source":{"system":"sec-edgar","filing":"0001567619-21-008738","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761921008738/doc1.xml","form_type":"4"}},{"id":2737728,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2021-04-28T15:58:30.000Z","date":"2021-04-26","kind":"tax_withholding","acquired":false,"shares":110,"price":278.77,"value":30664.7,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Closing price per share on date of vesting of restricted stock units."}],"balance_after":4759,"source":{"system":"sec-edgar","filing":"0001567619-21-008663","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761921008663/doc1.xml","form_type":"4"}},{"id":2738960,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2021-04-27T20:12:49.000Z","date":"2021-04-23","kind":"tax_withholding","acquired":false,"shares":236,"price":275.94,"value":65121.84,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Closing price per share on date of vesting of restricted stock units."}],"balance_after":4869,"source":{"system":"sec-edgar","filing":"0001567619-21-008638","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761921008638/doc1.xml","form_type":"4"}},{"id":2740069,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Stock Option (right to buy)","published_at":"2021-04-26T20:59:04.000Z","date":"2021-04-22","kind":"grant","acquired":true,"shares":2555,"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":2555,"derivative":{"exercise_price":267.84,"expiration_date":"2028-04-22","underlying":"Common Stock","underlying_shares":2555},"source":{"system":"sec-edgar","filing":"0001567619-21-008596","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761921008596/doc1.xml","form_type":"4"}},{"id":2740068,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2021-04-26T20:59:04.000Z","date":"2021-04-22","kind":"grant","acquired":true,"shares":881,"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 pursuant to the Amended and Restated Littelfuse, Inc. Long-Term Incentive Plan. The grant vests in increments of one third annually beginning on the first anniversary of the date of grant."}],"balance_after":5105,"source":{"system":"sec-edgar","filing":"0001567619-21-008596","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761921008596/doc1.xml","form_type":"4"}},{"id":2809912,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Stock Option (right to buy)","published_at":"2021-03-04T22:57:49.000Z","date":"2021-03-03","kind":"exercise","acquired":false,"shares":1367,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The option for 2,050 shares vests in increments of one third annually beginning on the first anniversary of the April 27, 2018 date of grant."}],"balance_after":683,"derivative":{"exercise_price":192.59,"expiration_date":"2025-04-27","underlying":"Common Stock","underlying_shares":1367},"source":{"system":"sec-edgar","filing":"0001567619-21-005665","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761921005665/doc1.xml","form_type":"4"}},{"id":2809911,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Stock Option (right to buy)","published_at":"2021-03-04T22:57:49.000Z","date":"2021-03-03","kind":"exercise","acquired":false,"shares":133,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The option for 2,401 shares vests in increments of one third annually beginning on the first anniversary of the April 26, 2019 date of grant."}],"balance_after":2268,"derivative":{"exercise_price":199.24,"expiration_date":"2026-04-26","underlying":"Common Stock","underlying_shares":133},"source":{"system":"sec-edgar","filing":"0001567619-21-005665","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761921005665/doc1.xml","form_type":"4"}},{"id":2809910,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2021-03-04T22:57:49.000Z","date":"2021-03-03","kind":"sale","acquired":false,"shares":2500,"price":270,"value":675000.0,"ownership":{"direct":true},"balance_after":4224,"source":{"system":"sec-edgar","filing":"0001567619-21-005665","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761921005665/doc1.xml","form_type":"4"}},{"id":2809909,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2021-03-04T22:57:49.000Z","date":"2021-03-03","kind":"exercise","acquired":true,"shares":1367,"price":192.59,"value":263270.53,"ownership":{"direct":true},"balance_after":6724,"source":{"system":"sec-edgar","filing":"0001567619-21-005665","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761921005665/doc1.xml","form_type":"4"}},{"id":2809908,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2021-03-04T22:57:49.000Z","date":"2021-03-03","kind":"exercise","acquired":true,"shares":133,"price":199.24,"value":26498.92,"ownership":{"direct":true},"balance_after":5357,"source":{"system":"sec-edgar","filing":"0001567619-21-005665","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761921005665/doc1.xml","form_type":"4"}},{"id":3083901,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Stock Option (right to buy)","published_at":"2020-07-14T17:36:20.000Z","date":"2020-07-10","kind":"grant","acquired":true,"shares":5293,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":5293,"derivative":{"exercise_price":166.63,"exercise_date":"2023-07-10","expiration_date":"2027-07-10","underlying":"Common Stock","underlying_shares":5293},"source":{"system":"sec-edgar","filing":"0001567619-20-013257","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761920013257/doc1.xml","form_type":"4"}},{"id":3166855,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2020-04-30T20:57:33.000Z","date":"2020-04-28","kind":"tax_withholding","acquired":false,"shares":125,"price":142.91,"value":17863.75,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Closing price per share on date of vesting of restricted stock units."}],"balance_after":5224,"source":{"system":"sec-edgar","filing":"0001567619-20-008690","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761920008690/doc1.xml","form_type":"4"}},{"id":3168625,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2020-04-28T22:04:12.000Z","date":"2020-04-27","kind":"tax_withholding","acquired":false,"shares":90,"price":141.82,"value":12763.8,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Closing price per share on date of vesting of restricted stock units."}],"balance_after":5349,"source":{"system":"sec-edgar","filing":"0001567619-20-008563","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761920008563/doc1.xml","form_type":"4"}},{"id":3168624,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2020-04-28T22:04:12.000Z","date":"2020-04-26","kind":"tax_withholding","acquired":false,"shares":106,"price":135.49,"value":14361.94,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Closing price per share on the preceding trading date of the vesting of restricted stock units."}],"balance_after":5439,"source":{"system":"sec-edgar","filing":"0001567619-20-008563","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761920008563/doc1.xml","form_type":"4"}},{"id":3169515,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Stock Option (right to buy)","published_at":"2020-04-27T22:47:03.000Z","date":"2020-04-23","kind":"grant","acquired":true,"shares":5353,"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":5353,"derivative":{"exercise_price":132.08,"expiration_date":"2027-04-23","underlying":"Common Stock","underlying_shares":5353},"source":{"system":"sec-edgar","filing":"0001567619-20-008507","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761920008507/doc1.xml","form_type":"4"}},{"id":3169514,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP &GM Passenger Vehicle"}}],"security":"Common Stock","published_at":"2020-04-27T22:47:03.000Z","date":"2020-04-23","kind":"grant","acquired":true,"shares":1508,"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 pursuant to the Amended and Restated Littelfuse, Inc. Long-Term Incentive Plan. The grant vests in increments of one third annually beginning on the first anniversary of the date of grant."}],"balance_after":5545,"source":{"system":"sec-edgar","filing":"0001567619-20-008507","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761920008507/doc1.xml","form_type":"4"}},{"id":3545918,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP Passenger Vehicle"}}],"security":"Stock Option (right to buy)","published_at":"2019-04-30T20:00:17.000Z","date":"2019-04-26","kind":"grant","acquired":true,"shares":2401,"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":2401,"derivative":{"exercise_price":199.24,"expiration_date":"2026-04-26","underlying":"Common Stock","underlying_shares":2401},"source":{"system":"sec-edgar","filing":"0001567619-19-009448","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761919009448/doc1.xml","form_type":"4"}},{"id":3545917,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP Passenger Vehicle"}}],"security":"Common Stock","published_at":"2019-04-30T20:00:17.000Z","date":"2019-04-28","kind":"tax_withholding","acquired":false,"shares":131,"price":199.24,"value":26100.44,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Closing price per share on the preceding trading date of the vesting of restricted stock units."}],"balance_after":4037,"source":{"system":"sec-edgar","filing":"0001567619-19-009448","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761919009448/doc1.xml","form_type":"4"}},{"id":3545916,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP Passenger Vehicle"}}],"security":"Common Stock","published_at":"2019-04-30T20:00:17.000Z","date":"2019-04-27","kind":"tax_withholding","acquired":false,"shares":94,"price":199.24,"value":18728.56,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Closing price per share on the preceding trading date of the vesting of restricted stock units."}],"balance_after":4168,"source":{"system":"sec-edgar","filing":"0001567619-19-009448","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761919009448/doc1.xml","form_type":"4"}},{"id":3545915,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP Passenger Vehicle"}}],"security":"Common Stock","published_at":"2019-04-30T20:00:17.000Z","date":"2019-04-26","kind":"grant","acquired":true,"shares":706,"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 pursuant to the Amended and Restated Littelfuse, Inc. Long-Term Incentive Plan. The grant vests in increments of one third annually beginning on the first anniversary of the date of grant."}],"balance_after":4262,"source":{"system":"sec-edgar","filing":"0001567619-19-009448","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761919009448/doc1.xml","form_type":"4"}},{"id":3550471,"issuer":{"id":3514,"kind":"organization","name":"LITTELFUSE INC /DE","symbol":"LFUS"},"owners":[{"id":75707,"kind":"person","name":"Conrad Alexander","position":1,"cik":"0001766692","reported_name":"Conrad Alexander","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP Passenger Vehicle"}}],"security":"Common Stock","published_at":"2019-04-24T16:28:29.000Z","date":"2019-04-22","kind":"tax_withholding","acquired":false,"shares":137,"price":198.05,"value":27132.85,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Closing price per share on date of vesting of restricted stock units."}],"balance_after":3556,"source":{"system":"sec-edgar","filing":"0001567619-19-009096","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/889331/000156761919009096/doc1.xml","form_type":"4"}}]}