{"transactions":[{"id":3828885,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Stock Option (right to buy)","published_at":"2018-08-31T20:22:42.000Z","date":"2018-08-30","kind":"exercise","acquired":false,"shares":2371,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Option grant vests over four years, with 25% of the shares vesting on August 1, 2016 and 1/48 vesting each month thereafter."}],"balance_after":12871,"derivative":{"exercise_price":22.04,"expiration_date":"2025-08-11","underlying":"Common Stock","underlying_shares":2371},"source":{"system":"sec-edgar","filing":"0001321732-18-000118","document":"wf-form4_153576134632781.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173218000118/wf-form4_153576134632781.xml","form_type":"4"}},{"id":3828884,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Stock Option (right to buy)","published_at":"2018-08-31T20:22:42.000Z","date":"2018-08-29","kind":"exercise","acquired":false,"shares":629,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Option grant vests over four years, with 25% of the shares vesting on August 1, 2016 and 1/48 vesting each month thereafter."}],"balance_after":15242,"derivative":{"exercise_price":22.04,"expiration_date":"2025-08-11","underlying":"Common Stock","underlying_shares":629},"source":{"system":"sec-edgar","filing":"0001321732-18-000118","document":"wf-form4_153576134632781.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173218000118/wf-form4_153576134632781.xml","form_type":"4"}},{"id":3828883,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2018-08-31T20:22:42.000Z","date":"2018-08-30","kind":"sale","acquired":false,"shares":2371,"price":135.1,"value":320322.1,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $135.00 to $135.35. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":15667,"source":{"system":"sec-edgar","filing":"0001321732-18-000118","document":"wf-form4_153576134632781.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173218000118/wf-form4_153576134632781.xml","form_type":"4"}},{"id":3828882,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2018-08-31T20:22:42.000Z","date":"2018-08-30","kind":"exercise","acquired":true,"shares":2371,"price":22.04,"value":52256.84,"ownership":{"direct":true},"balance_after":18038,"source":{"system":"sec-edgar","filing":"0001321732-18-000118","document":"wf-form4_153576134632781.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173218000118/wf-form4_153576134632781.xml","form_type":"4"}},{"id":3828881,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2018-08-31T20:22:42.000Z","date":"2018-08-29","kind":"sale","acquired":false,"shares":629,"price":135,"value":84915.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."}],"balance_after":15667,"source":{"system":"sec-edgar","filing":"0001321732-18-000118","document":"wf-form4_153576134632781.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173218000118/wf-form4_153576134632781.xml","form_type":"4"}},{"id":3828880,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2018-08-31T20:22:42.000Z","date":"2018-08-29","kind":"exercise","acquired":true,"shares":629,"price":22.04,"value":13863.16,"ownership":{"direct":true},"balance_after":16296,"source":{"system":"sec-edgar","filing":"0001321732-18-000118","document":"wf-form4_153576134632781.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173218000118/wf-form4_153576134632781.xml","form_type":"4"}},{"id":3849816,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Stock Option (right to buy)","published_at":"2018-08-08T18:30:40.000Z","date":"2018-08-08","kind":"exercise","acquired":false,"shares":400,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Option grant vests over four years, with 25% of the shares vesting on August 1, 2016 and 1/48 vesting each month thereafter."}],"balance_after":15871,"derivative":{"exercise_price":22.04,"expiration_date":"2025-08-11","underlying":"Common Stock","underlying_shares":400},"source":{"system":"sec-edgar","filing":"0001321732-18-000104","document":"wf-form4_153376742418603.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173218000104/wf-form4_153376742418603.xml","form_type":"4"}},{"id":3849815,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2018-08-08T18:30:40.000Z","date":"2018-08-08","kind":"exercise","acquired":true,"shares":400,"price":22.04,"value":8816.0,"ownership":{"direct":true},"balance_after":15667,"source":{"system":"sec-edgar","filing":"0001321732-18-000104","document":"wf-form4_153376742418603.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173218000104/wf-form4_153376742418603.xml","form_type":"4"}},{"id":3849814,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2018-08-08T18:30:40.000Z","date":"2018-08-06","kind":"sale","acquired":false,"shares":10000,"price":150.16,"value":1501600.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $150.00 to $150.75. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Shares are held by The 2010 Robert D. Evans and Norma J. Evans Revocable Trust u/d/t dated November 11, 2010."}],"balance_after":152296,"source":{"system":"sec-edgar","filing":"0001321732-18-000104","document":"wf-form4_153376742418603.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173218000104/wf-form4_153376742418603.xml","form_type":"4"}},{"id":3865443,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Stock Option (right to buy)","published_at":"2018-07-18T18:40:24.000Z","date":"2018-07-16","kind":"exercise","acquired":false,"shares":26,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Option grant vests over four years, with 25% of the shares vesting on August 1, 2016 and 1/48 vesting each month thereafter."}],"balance_after":16271,"derivative":{"exercise_price":22.04,"expiration_date":"2025-08-11","underlying":"Common Stock","underlying_shares":26},"source":{"system":"sec-edgar","filing":"0001321732-18-000090","document":"wf-form4_153195360828897.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173218000090/wf-form4_153195360828897.xml","form_type":"4"}},{"id":3865442,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2018-07-18T18:40:24.000Z","date":"2018-07-16","kind":"exercise","acquired":true,"shares":26,"price":22.04,"value":573.04,"ownership":{"direct":true},"balance_after":15267,"source":{"system":"sec-edgar","filing":"0001321732-18-000090","document":"wf-form4_153195360828897.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173218000090/wf-form4_153195360828897.xml","form_type":"4"}},{"id":3882443,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Stock Option (right to buy)","published_at":"2018-06-27T19:56:57.000Z","date":"2018-06-25","kind":"exercise","acquired":false,"shares":2537,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Option grant vests over four years, with 25% of the shares vesting on August 1, 2016 and 1/48 vesting each month thereafter."}],"balance_after":16297,"derivative":{"exercise_price":22.04,"expiration_date":"2025-08-11","underlying":"Common Stock","underlying_shares":2537},"source":{"system":"sec-edgar","filing":"0001321732-18-000084","document":"wf-form4_153014380199997.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173218000084/wf-form4_153014380199997.xml","form_type":"4"}},{"id":3882442,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2018-06-27T19:56:57.000Z","date":"2018-06-25","kind":"exercise","acquired":true,"shares":2537,"price":22.04,"value":55915.48,"ownership":{"direct":true},"balance_after":15241,"source":{"system":"sec-edgar","filing":"0001321732-18-000084","document":"wf-form4_153014380199997.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173218000084/wf-form4_153014380199997.xml","form_type":"4"}},{"id":3889080,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Stock Option (right to buy)","published_at":"2018-06-19T18:56:26.000Z","date":"2018-06-15","kind":"exercise","acquired":false,"shares":2000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Option grant vests over four years, with 25% of the shares vesting on August 1, 2016 and 1/48 vesting each month thereafter."}],"balance_after":18834,"derivative":{"exercise_price":22.04,"expiration_date":"2025-08-11","underlying":"Common Stock","underlying_shares":2000},"source":{"system":"sec-edgar","filing":"0001321732-18-000080","document":"wf-form4_152944896697980.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173218000080/wf-form4_152944896697980.xml","form_type":"4"}},{"id":3889079,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2018-06-19T18:56:26.000Z","date":"2018-06-15","kind":"exercise","acquired":true,"shares":2000,"price":22.04,"value":44080.0,"ownership":{"direct":true},"balance_after":12704,"source":{"system":"sec-edgar","filing":"0001321732-18-000080","document":"wf-form4_152944896697980.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173218000080/wf-form4_152944896697980.xml","form_type":"4"}},{"id":3947815,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Stock Option (right to buy)","published_at":"2018-05-03T20:15:34.000Z","date":"2018-05-01","kind":"exercise","acquired":false,"shares":5000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"Option grant vests over four years, with 25% of the shares vesting on August 1, 2016 and 1/48 vesting each month thereafter."}],"balance_after":20834,"derivative":{"exercise_price":22.04,"expiration_date":"2025-08-11","underlying":"Common Stock","underlying_shares":5000},"source":{"system":"sec-edgar","filing":"0001321732-18-000061","document":"wf-form4_152539292125308.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173218000061/wf-form4_152539292125308.xml","form_type":"4"}},{"id":3947814,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2018-05-03T20:15:34.000Z","date":"2018-05-01","kind":"sale","acquired":false,"shares":900,"price":127.53,"value":114777.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"This transaction was executed in multiple trades at prices ranging from  $127.15 to $127.85. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":12225,"source":{"system":"sec-edgar","filing":"0001321732-18-000061","document":"wf-form4_152539292125308.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173218000061/wf-form4_152539292125308.xml","form_type":"4"}},{"id":3947813,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2018-05-03T20:15:34.000Z","date":"2018-05-01","kind":"sale","acquired":false,"shares":800,"price":126.68,"value":101344.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"This transaction was executed in multiple trades at prices ranging from $126.35 to $126.85. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":13125,"source":{"system":"sec-edgar","filing":"0001321732-18-000061","document":"wf-form4_152539292125308.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173218000061/wf-form4_152539292125308.xml","form_type":"4"}},{"id":3947812,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2018-05-03T20:15:34.000Z","date":"2018-05-01","kind":"sale","acquired":false,"shares":1300,"price":125.55,"value":163215.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"This transaction was executed in multiple trades at prices ranging from 125.15 to $125.90. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":13925,"source":{"system":"sec-edgar","filing":"0001321732-18-000061","document":"wf-form4_152539292125308.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173218000061/wf-form4_152539292125308.xml","form_type":"4"}},{"id":3947811,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2018-05-03T20:15:34.000Z","date":"2018-05-01","kind":"sale","acquired":false,"shares":2000,"price":124.56,"value":249120.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $124.10 to $125.05. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":15225,"source":{"system":"sec-edgar","filing":"0001321732-18-000061","document":"wf-form4_152539292125308.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173218000061/wf-form4_152539292125308.xml","form_type":"4"}},{"id":3947810,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2018-05-03T20:15:34.000Z","date":"2018-05-01","kind":"exercise","acquired":true,"shares":5000,"price":22.04,"value":110200.0,"ownership":{"direct":true},"balance_after":17225,"source":{"system":"sec-edgar","filing":"0001321732-18-000061","document":"wf-form4_152539292125308.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173218000061/wf-form4_152539292125308.xml","form_type":"4"}},{"id":3996530,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2018-03-14T17:06:36.000Z","date":"2018-03-12","kind":"sale","acquired":false,"shares":10000,"price":121.03,"value":1210300.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $121.00 to $121.20. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Shares are held by The 2010 Robert D. Evans and Norma J. Evans Revocable Trust u/d/t dated November 11, 2010."}],"balance_after":160775,"source":{"system":"sec-edgar","filing":"0001321732-18-000046","document":"wf-form4_152106158300910.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173218000046/wf-form4_152106158300910.xml","form_type":"4"}},{"id":4015884,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Stock Option (right to buy)","published_at":"2018-03-05T21:06:57.000Z","date":"2018-03-01","kind":"exercise","acquired":false,"shares":5000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F9","text":"Option grant vests over four years, with 25% of the shares vesting on August 1, 2016 and 1/48 vesting each month thereafter."}],"balance_after":25834,"derivative":{"exercise_price":22.04,"expiration_date":"2025-08-11","underlying":"Common Stock","underlying_shares":5000},"source":{"system":"sec-edgar","filing":"0001321732-18-000042","document":"wf-form4_152030200370350.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173218000042/wf-form4_152030200370350.xml","form_type":"4"}},{"id":4015883,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Stock Option (right to buy)","published_at":"2018-03-05T21:06:57.000Z","date":"2018-01-02","kind":"exercise","acquired":false,"shares":5000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F9","text":"Option grant vests over four years, with 25% of the shares vesting on August 1, 2016 and 1/48 vesting each month thereafter."}],"balance_after":30834,"derivative":{"exercise_price":22.04,"expiration_date":"2025-08-11","underlying":"Common Stock","underlying_shares":5000},"source":{"system":"sec-edgar","filing":"0001321732-18-000042","document":"wf-form4_152030200370350.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173218000042/wf-form4_152030200370350.xml","form_type":"4"}},{"id":4015882,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2018-03-05T21:06:57.000Z","date":"2018-03-01","kind":"sale","acquired":false,"shares":200,"price":110,"value":22000.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"The totals in column 5 have been adjusted from prior reports to accurately reflect certain transactions as involving directly owned shares, which were previously reported as having involved indirectly owned shares."}],"balance_after":12225,"source":{"system":"sec-edgar","filing":"0001321732-18-000042","document":"wf-form4_152030200370350.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173218000042/wf-form4_152030200370350.xml","form_type":"4"}},{"id":4015881,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2018-03-05T21:06:57.000Z","date":"2018-03-01","kind":"sale","acquired":false,"shares":822,"price":109.58,"value":90074.76,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"This transaction was executed in multiple trades at prices ranging from $109.00 to $109.95. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"The totals in column 5 have been adjusted from prior reports to accurately reflect certain transactions as involving directly owned shares, which were previously reported as having involved indirectly owned shares."}],"balance_after":12425,"source":{"system":"sec-edgar","filing":"0001321732-18-000042","document":"wf-form4_152030200370350.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173218000042/wf-form4_152030200370350.xml","form_type":"4"}},{"id":4015880,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2018-03-05T21:06:57.000Z","date":"2018-03-01","kind":"sale","acquired":false,"shares":2678,"price":108.4,"value":290295.2,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"This transaction was executed in multiple trades at prices ranging from $108.00 to $108.95. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"The totals in column 5 have been adjusted from prior reports to accurately reflect certain transactions as involving directly owned shares, which were previously reported as having involved indirectly owned shares."}],"balance_after":13247,"source":{"system":"sec-edgar","filing":"0001321732-18-000042","document":"wf-form4_152030200370350.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173218000042/wf-form4_152030200370350.xml","form_type":"4"}},{"id":4015879,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2018-03-05T21:06:57.000Z","date":"2018-03-01","kind":"sale","acquired":false,"shares":1300,"price":107.55,"value":139815.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"This transaction was executed in multiple trades at prices ranging from $106.95 to $107.85. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"The totals in column 5 have been adjusted from prior reports to accurately reflect certain transactions as involving directly owned shares, which were previously reported as having involved indirectly owned shares."}],"balance_after":15925,"source":{"system":"sec-edgar","filing":"0001321732-18-000042","document":"wf-form4_152030200370350.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173218000042/wf-form4_152030200370350.xml","form_type":"4"}},{"id":4015878,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2018-03-05T21:06:57.000Z","date":"2018-03-01","kind":"exercise","acquired":true,"shares":5000,"price":22.04,"value":110200.0,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"The totals in column 5 have been adjusted from prior reports to accurately reflect certain transactions as involving directly owned shares, which were previously reported as having involved indirectly owned shares."}],"balance_after":17225,"source":{"system":"sec-edgar","filing":"0001321732-18-000042","document":"wf-form4_152030200370350.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173218000042/wf-form4_152030200370350.xml","form_type":"4"}},{"id":4015877,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2018-03-05T21:06:57.000Z","date":"2018-01-02","kind":"exercise","acquired":true,"shares":5000,"price":22.04,"value":110200.0,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"The totals in column 5 have been adjusted from prior reports to accurately reflect certain transactions as involving directly owned shares, which were previously reported as having involved indirectly owned shares."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"This option exercise was omitted from the prior Form 4 as a result of an administrative error by the company's external share administrator. The shares underlying the option were sold as previously reported in the Form 4 dated January 4, 2018."}],"balance_after":12225,"source":{"system":"sec-edgar","filing":"0001321732-18-000042","document":"wf-form4_152030200370350.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173218000042/wf-form4_152030200370350.xml","form_type":"4"}},{"id":4107788,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2018-01-04T20:36:24.000Z","date":"2018-01-02","kind":"sale","acquired":false,"shares":200,"price":92.23,"value":18446.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"This transaction was executed in multiple trades at prices ranging from $92.10 to $92.35. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Shares are held by The 2010 Robert D. Evans and Norma J. Evans Revocable Trust u/d/t dated November 11, 2010."}],"balance_after":166296,"source":{"system":"sec-edgar","filing":"0001321732-18-000004","document":"wf-form4_151511616525066.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173218000004/wf-form4_151511616525066.xml","form_type":"4"}},{"id":4107787,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2018-01-04T20:36:24.000Z","date":"2018-01-02","kind":"sale","acquired":false,"shares":600,"price":91.65,"value":54990.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"This transaction was executed in multiple trades at prices ranging from $91.00 to $91.95. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Shares are held by The 2010 Robert D. Evans and Norma J. Evans Revocable Trust u/d/t dated November 11, 2010."}],"balance_after":166496,"source":{"system":"sec-edgar","filing":"0001321732-18-000004","document":"wf-form4_151511616525066.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173218000004/wf-form4_151511616525066.xml","form_type":"4"}},{"id":4107786,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2018-01-04T20:36:24.000Z","date":"2018-01-02","kind":"sale","acquired":false,"shares":20855,"price":90.08,"value":1878618.4,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"This transaction was executed in multiple trades at prices ranging from $90.00 to $90.80. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Shares are held by The 2010 Robert D. Evans and Norma J. Evans Revocable Trust u/d/t dated November 11, 2010."}],"balance_after":167096,"source":{"system":"sec-edgar","filing":"0001321732-18-000004","document":"wf-form4_151511616525066.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173218000004/wf-form4_151511616525066.xml","form_type":"4"}},{"id":4107785,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2018-01-04T20:36:24.000Z","date":"2018-01-02","kind":"sale","acquired":false,"shares":18345,"price":89.6,"value":1643712.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $89.00 to $89.95. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Shares are held by The 2010 Robert D. Evans and Norma J. Evans Revocable Trust u/d/t dated November 11, 2010."}],"balance_after":187951,"source":{"system":"sec-edgar","filing":"0001321732-18-000004","document":"wf-form4_151511616525066.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173218000004/wf-form4_151511616525066.xml","form_type":"4"}},{"id":4199197,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2017-09-29T18:50:42.000Z","date":"2017-09-29","kind":"sale","acquired":false,"shares":16323,"price":90.04,"value":1469722.92,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"This transaction was executed in multiple trades at prices ranging from $90.00 to $90.15. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Shares are held by The 2010 Robert D. Evans and Norma J. Evans Revocable Trust u/d/t dated November 11, 2010."}],"balance_after":206296,"source":{"system":"sec-edgar","filing":"0001321732-17-000157","document":"wf-form4_150672542859398.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173217000157/wf-form4_150672542859398.xml","form_type":"4"}},{"id":4199196,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2017-09-29T18:50:42.000Z","date":"2017-09-28","kind":"sale","acquired":false,"shares":2108,"price":90,"value":189720.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Shares are held by The 2010 Robert D. Evans and Norma J. Evans Revocable Trust u/d/t dated November 11, 2010."}],"balance_after":222619,"source":{"system":"sec-edgar","filing":"0001321732-17-000157","document":"wf-form4_150672542859398.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173217000157/wf-form4_150672542859398.xml","form_type":"4"}},{"id":4199195,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2017-09-29T18:50:42.000Z","date":"2017-09-27","kind":"sale","acquired":false,"shares":1586,"price":90,"value":142740.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Shares are held by The 2010 Robert D. Evans and Norma J. Evans Revocable Trust u/d/t dated November 11, 2010."}],"balance_after":224727,"source":{"system":"sec-edgar","filing":"0001321732-17-000157","document":"wf-form4_150672542859398.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173217000157/wf-form4_150672542859398.xml","form_type":"4"}},{"id":4203225,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2017-09-22T18:01:43.000Z","date":"2017-09-21","kind":"sale","acquired":false,"shares":2124,"price":90,"value":191160.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Shares are held by The 2010 Robert D. Evans and Norma J. Evans Revocable Trust u/d/t dated November 11, 2010."}],"balance_after":226313,"source":{"system":"sec-edgar","filing":"0001321732-17-000153","document":"wf-form4_150611768931889.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173217000153/wf-form4_150611768931889.xml","form_type":"4"}},{"id":4203224,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2017-09-22T18:01:43.000Z","date":"2017-09-20","kind":"sale","acquired":false,"shares":2859,"price":90,"value":257310.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Shares are held by The 2010 Robert D. Evans and Norma J. Evans Revocable Trust u/d/t dated November 11, 2010."}],"balance_after":228437,"source":{"system":"sec-edgar","filing":"0001321732-17-000153","document":"wf-form4_150611768931889.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173217000153/wf-form4_150611768931889.xml","form_type":"4"}},{"id":4236698,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2017-08-11T18:09:43.000Z","date":"2017-08-09","kind":"sale","acquired":false,"shares":700,"price":86.35,"value":60445.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"This transaction was executed in multiple trades at prices ranging from $86.00 to $86.50. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Shares are held by The 2010 Robert D. Evans and Norma J. Evans Revocable Trust u/d/t dated November 11, 2010."}],"balance_after":231296,"source":{"system":"sec-edgar","filing":"0001321732-17-000145","document":"wf-form4_150248936786069.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173217000145/wf-form4_150248936786069.xml","form_type":"4"}},{"id":4236697,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2017-08-11T18:09:43.000Z","date":"2017-08-09","kind":"sale","acquired":false,"shares":9300,"price":85.06,"value":791058.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $85.00 to $85.65 The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Shares are held by The 2010 Robert D. Evans and Norma J. Evans Revocable Trust u/d/t dated November 11, 2010."}],"balance_after":231996,"source":{"system":"sec-edgar","filing":"0001321732-17-000145","document":"wf-form4_150248936786069.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173217000145/wf-form4_150248936786069.xml","form_type":"4"}},{"id":4252659,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Stock Option (right to buy)","published_at":"2017-07-24T19:12:27.000Z","date":"2017-07-21","kind":"exercise","acquired":false,"shares":4629,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Option vests over four years, with 25% of the shares vesting on August 1, 2016 and 1/48 vesting each month thereafter."}],"balance_after":35834,"derivative":{"exercise_price":22.04,"expiration_date":"2025-08-11","underlying":"Common Stock","underlying_shares":4629},"source":{"system":"sec-edgar","filing":"0001321732-17-000134","document":"wf-form4_150093793410783.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173217000134/wf-form4_150093793410783.xml","form_type":"4"}},{"id":4252658,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2017-07-24T19:12:27.000Z","date":"2017-07-21","kind":"exercise","acquired":true,"shares":4629,"price":22.04,"value":102023.16,"ownership":{"direct":true},"balance_after":11704,"source":{"system":"sec-edgar","filing":"0001321732-17-000134","document":"wf-form4_150093793410783.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173217000134/wf-form4_150093793410783.xml","form_type":"4"}},{"id":4344642,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Stock Option (right to buy)","published_at":"2017-04-26T18:14:46.000Z","date":"2017-04-24","kind":"exercise","acquired":false,"shares":5000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Option vests over four years, with 25% of the option vesting on August 1, 2016 and 1/48 vesting each month thereafter."}],"balance_after":40463,"derivative":{"exercise_price":22.04,"expiration_date":"2025-08-11","underlying":"Common Stock","underlying_shares":5000},"source":{"system":"sec-edgar","filing":"0001321732-17-000112","document":"wf-form4_149324487138123.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173217000112/wf-form4_149324487138123.xml","form_type":"4"}},{"id":4344641,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2017-04-26T18:14:46.000Z","date":"2017-04-24","kind":"sale","acquired":false,"shares":5000,"price":85.24,"value":426200.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $85.00 to $85.68. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Shares are held by The 2010 Robert D. Evans and Norma J. Evans Revocable Trust u/d/t dated November 11, 2010."}],"balance_after":241296,"source":{"system":"sec-edgar","filing":"0001321732-17-000112","document":"wf-form4_149324487138123.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173217000112/wf-form4_149324487138123.xml","form_type":"4"}},{"id":4344640,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2017-04-26T18:14:46.000Z","date":"2017-04-24","kind":"sale","acquired":false,"shares":5000,"price":85.24,"value":426200.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $85.00 to $85.68. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":7075,"source":{"system":"sec-edgar","filing":"0001321732-17-000112","document":"wf-form4_149324487138123.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173217000112/wf-form4_149324487138123.xml","form_type":"4"}},{"id":4344639,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2017-04-26T18:14:46.000Z","date":"2017-04-24","kind":"exercise","acquired":true,"shares":5000,"price":22.04,"value":110200.0,"ownership":{"direct":true},"balance_after":12075,"source":{"system":"sec-edgar","filing":"0001321732-17-000112","document":"wf-form4_149324487138123.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173217000112/wf-form4_149324487138123.xml","form_type":"4"}},{"id":4404693,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2017-03-03T17:03:53.000Z","date":"2017-03-01","kind":"sale","acquired":false,"shares":5000,"price":80.03,"value":400150.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $80.00 to $80.28. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Shares are held by The 2010 Robert D. Evans and Norma J. Evans Revocable Trust u/d/t dated November 11, 2010."}],"balance_after":246296,"source":{"system":"sec-edgar","filing":"0001321732-17-000086","document":"wf-form4_148857861780393.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173217000086/wf-form4_148857861780393.xml","form_type":"4"}},{"id":4449405,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2017-02-14T18:43:27.000Z","date":"2017-02-14","kind":"sale","acquired":false,"shares":5000,"price":75,"value":375000.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Shares are held by The 2010 Robert D. Evans and Norma J. Evans Revocable Trust u/d/t dated November 11, 2010."}],"balance_after":251296,"source":{"system":"sec-edgar","filing":"0001321732-17-000063","document":"wf-form4_148711579253409.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173217000063/wf-form4_148711579253409.xml","form_type":"4"}},{"id":4457337,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2017-02-10T19:22:48.000Z","date":"2017-02-09","kind":"sale","acquired":false,"shares":1700,"price":72.13,"value":122621.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"This transaction was executed in multiple trades at prices ranging from $72.00 to $72.30. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Shares are held by The 2010 Robert D. Evans and Norma J. Evans Revocable Trust u/d/t dated November 11, 2010."}],"balance_after":256296,"source":{"system":"sec-edgar","filing":"0001321732-17-000057","document":"wf-form4_148677255496551.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173217000057/wf-form4_148677255496551.xml","form_type":"4"}},{"id":4457336,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2017-02-10T19:22:48.000Z","date":"2017-02-09","kind":"sale","acquired":false,"shares":700,"price":71.68,"value":50176.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"This transaction was executed in multiple trades at prices ranging from $71.10 to $71.90. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Shares are held by The 2010 Robert D. Evans and Norma J. Evans Revocable Trust u/d/t dated November 11, 2010."}],"balance_after":257996,"source":{"system":"sec-edgar","filing":"0001321732-17-000057","document":"wf-form4_148677255496551.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173217000057/wf-form4_148677255496551.xml","form_type":"4"}},{"id":4457335,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2017-02-10T19:22:48.000Z","date":"2017-02-09","kind":"sale","acquired":false,"shares":400,"price":70.1,"value":28040.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"This transaction was executed in multiple trades at prices ranging from $70.00 to $70.40. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Shares are held by The 2010 Robert D. Evans and Norma J. Evans Revocable Trust u/d/t dated November 11, 2010."}],"balance_after":258696,"source":{"system":"sec-edgar","filing":"0001321732-17-000057","document":"wf-form4_148677255496551.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173217000057/wf-form4_148677255496551.xml","form_type":"4"}},{"id":4457334,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2017-02-10T19:22:48.000Z","date":"2017-02-08","kind":"sale","acquired":false,"shares":2099,"price":70.1,"value":147139.9,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $70.00 to $70.20. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Shares are held by The 2010 Robert D. Evans and Norma J. Evans Revocable Trust u/d/t dated November 11, 2010."}],"balance_after":259096,"source":{"system":"sec-edgar","filing":"0001321732-17-000057","document":"wf-form4_148677255496551.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173217000057/wf-form4_148677255496551.xml","form_type":"4"}},{"id":4461687,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2017-02-08T21:12:58.000Z","date":"2017-02-07","kind":"sale","acquired":false,"shares":1,"price":70,"value":70.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Shares are held by The 2010 Robert D. Evans and Norma J. Evans Revocable Trust u/d/t dated November 11, 2010."}],"balance_after":261195,"source":{"system":"sec-edgar","filing":"0001321732-17-000042","document":"wf-form4_148660636498404.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173217000042/wf-form4_148660636498404.xml","form_type":"4"}},{"id":4461686,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2017-02-08T21:12:58.000Z","date":"2017-02-06","kind":"sale","acquired":false,"shares":100,"price":70,"value":7000.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Shares are held by The 2010 Robert D. Evans and Norma J. Evans Revocable Trust u/d/t dated November 11, 2010."}],"balance_after":261196,"source":{"system":"sec-edgar","filing":"0001321732-17-000042","document":"wf-form4_148660636498404.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173217000042/wf-form4_148660636498404.xml","form_type":"4"}},{"id":4468902,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2017-02-03T20:20:34.000Z","date":"2017-02-03","kind":"sale","acquired":false,"shares":886,"price":70.63,"value":62578.18,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F8","text":"This transaction was executed in multiple trades at prices ranging from $70.40 to $70.95. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Shares are held by The 2010 Robert D. Evans and Norma J. Evans Revocable Trust u/d/t dated November 11, 2010."}],"balance_after":261296,"source":{"system":"sec-edgar","filing":"0001321732-17-000028","document":"wf-form4_148617122157522.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173217000028/wf-form4_148617122157522.xml","form_type":"4"}},{"id":4468901,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2017-02-03T20:20:34.000Z","date":"2017-02-03","kind":"sale","acquired":false,"shares":1000,"price":69.74,"value":69740.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"This transaction was executed in multiple trades at prices ranging from $69.20 to $70.10. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Shares are held by The 2010 Robert D. Evans and Norma J. Evans Revocable Trust u/d/t dated November 11, 2010."}],"balance_after":262182,"source":{"system":"sec-edgar","filing":"0001321732-17-000028","document":"wf-form4_148617122157522.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173217000028/wf-form4_148617122157522.xml","form_type":"4"}},{"id":4468900,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2017-02-03T20:20:34.000Z","date":"2017-02-02","kind":"sale","acquired":false,"shares":400,"price":70.54,"value":28216.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"This transaction was executed in multiple trades at prices ranging from $70.40 to $70.75. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Shares are held by The 2010 Robert D. Evans and Norma J. Evans Revocable Trust u/d/t dated November 11, 2010."}],"balance_after":263182,"source":{"system":"sec-edgar","filing":"0001321732-17-000028","document":"wf-form4_148617122157522.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173217000028/wf-form4_148617122157522.xml","form_type":"4"}},{"id":4468899,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2017-02-03T20:20:34.000Z","date":"2017-02-02","kind":"sale","acquired":false,"shares":1104,"price":69.81,"value":77070.24,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"This transaction was executed in multiple trades at prices ranging from $69.40 to $70.30. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Shares are held by The 2010 Robert D. Evans and Norma J. Evans Revocable Trust u/d/t dated November 11, 2010."}],"balance_after":263582,"source":{"system":"sec-edgar","filing":"0001321732-17-000028","document":"wf-form4_148617122157522.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173217000028/wf-form4_148617122157522.xml","form_type":"4"}},{"id":4468898,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2017-02-03T20:20:34.000Z","date":"2017-02-01","kind":"sale","acquired":false,"shares":300,"price":71.55,"value":21465.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"This transaction was executed in multiple trades at prices ranging from $71.40 to $71.65. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Shares are held by The 2010 Robert D. Evans and Norma J. Evans Revocable Trust u/d/t dated November 11, 2010."}],"balance_after":264686,"source":{"system":"sec-edgar","filing":"0001321732-17-000028","document":"wf-form4_148617122157522.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173217000028/wf-form4_148617122157522.xml","form_type":"4"}},{"id":4468897,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2017-02-03T20:20:34.000Z","date":"2017-02-01","kind":"sale","acquired":false,"shares":1310,"price":70.76,"value":92695.6,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $70.35 to $71.25. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Shares are held by The 2010 Robert D. Evans and Norma J. Evans Revocable Trust u/d/t dated November 11, 2010."}],"balance_after":264986,"source":{"system":"sec-edgar","filing":"0001321732-17-000028","document":"wf-form4_148617122157522.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173217000028/wf-form4_148617122157522.xml","form_type":"4"}},{"id":4581627,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Stock Option (right to buy)","published_at":"2016-10-11T18:14:10.000Z","date":"2016-10-07","kind":"exercise","acquired":false,"shares":4537,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The option was granted by the Issuer prior to the date on which the Reporting Person became subject to Section 16. The original option grant vests over four years, with 25% of the shares vesting on August 1, 2016 and 1/48 vesting each month thereafter and was previously reported on Form 3."}],"balance_after":45463,"derivative":{"exercise_price":22.04,"expiration_date":"2025-08-11","underlying":"Common Stock","underlying_shares":4537},"source":{"system":"sec-edgar","filing":"0001321732-16-000083","document":"wf-form4_147622403734210.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173216000083/wf-form4_147622403734210.xml","form_type":"4"}},{"id":4581626,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2016-10-11T18:14:10.000Z","date":"2016-10-07","kind":"exercise","acquired":true,"shares":4537,"price":22.04,"value":99995.48,"ownership":{"direct":true},"balance_after":7075,"source":{"system":"sec-edgar","filing":"0001321732-16-000083","document":"wf-form4_147622403734210.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173216000083/wf-form4_147622403734210.xml","form_type":"4"}},{"id":4611317,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2016-09-06T21:15:50.000Z","date":"2016-09-02","kind":"sale","acquired":false,"shares":700,"price":70.25,"value":49175.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"This transaction was executed in multiple trades at prices ranging from $70.00 to $70.56. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Shares are held by The 2010 Robert D. Evans and Norma J. Evans Revocable Trust u/d/t dated November 11, 2010."}],"balance_after":266296,"source":{"system":"sec-edgar","filing":"0001321732-16-000069","document":"wf-form4_147321093814069.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173216000069/wf-form4_147321093814069.xml","form_type":"4"}},{"id":4611316,"issuer":{"id":3430,"kind":"organization","name":"Penumbra Inc","symbol":"PEN"},"owners":[{"id":163864,"kind":"person","name":"Evans Robert D.","position":1,"cik":"0001173733","reported_name":"Evans Robert D.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Gen. Counsel & Secretary"}}],"security":"Common Stock","published_at":"2016-09-06T21:15:50.000Z","date":"2016-09-01","kind":"sale","acquired":false,"shares":2400,"price":70.06,"value":168144.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $70.00 to $70.25. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Shares are held by The 2010 Robert D. Evans and Norma J. Evans Revocable Trust u/d/t dated November 11, 2010."}],"balance_after":266996,"source":{"system":"sec-edgar","filing":"0001321732-16-000069","document":"wf-form4_147321093814069.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1173733/000132173216000069/wf-form4_147321093814069.xml","form_type":"4"}}]}