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One-third (1/3) of the total RSUs will vest on each of the first three (3) anniversaries of the Vesting Commencement Date (10/5/2026),\nprovided that the Reporting Person continues to serve through each vesting date."}],"balance_after":7981,"source":{"system":"sec-edgar","filing":"0001784794-26-000007","document":"wk-form4_1791403597.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1784794/000178479426000007/wk-form4_1791403597.xml","form_type":"4"}},{"id":675851,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":19818,"kind":"person","name":"Wolf Dana Elizabeth","position":1,"cik":"0001931555","reported_name":"Wolf Dana Elizabeth","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-08-25T20:07:53.000Z","date":"2026-08-25","kind":"sale","planned":true,"acquired":false,"shares":2652,"price":25.65,"value":68023.8,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 15, 2026."}],"balance_after":57409,"source":{"system":"sec-edgar","filing":"0001931555-26-000007","document":"wk-form4_1787688469.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1580808/000193155526000007/wk-form4_1787688469.xml","form_type":"4"}},{"id":689430,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":24191,"kind":"person","name":"Weber Robert Scott","position":1,"cik":"0001936128","reported_name":"Weber Robert Scott","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel"}}],"security":"Common Stock","published_at":"2026-08-12T20:25:46.000Z","date":"2026-08-11","kind":"sale","planned":true,"acquired":false,"shares":14086,"price":27.86,"value":392435.96,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 9, 2026."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This is the weighted average price of the shares sold, which ranged from $27.55 to $28.46 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4."}],"balance_after":50586,"source":{"system":"sec-edgar","filing":"0001936128-26-000027","document":"wk-form4_1786566343.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1936128/000193612826000027/wk-form4_1786566343.xml","form_type":"4"}},{"id":715637,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":24191,"kind":"person","name":"Weber Robert Scott","position":1,"cik":"0001936128","reported_name":"Weber Robert Scott","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel"}}],"security":"Common 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2026."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"The total number of shares reported on Column 5 of Table I of this amendment is the total owned by the reporting person as of May 15, 20206, which reflects the corrected number of shares withheld."}],"balance_after":35614,"source":{"system":"sec-edgar","filing":"0002085974-26-000012","document":"wk-form4a_1778887557.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1580808/000208597426000012/wk-form4a_1778887557.xml","form_type":"4/A","original_submission_date":"2026-05-15"}},{"id":776676,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":46811,"kind":"person","name":"Trivedi Dhrupad","position":1,"cik":"0001570462","reported_name":"Trivedi 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The second achievement date occurred on April 27, 2026, as certified by the compensation committee of ATEN, resulting in 2,989 units meeting the appropriate performance-based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-half (1/2) on May 14, 2026 and an additional one-fourth (1/4) on each of the first and second anniversaries of April 27, 2026, subject to continued employment. These shares are reflected on Table I."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Performance-Based Restricted Stock Units that were previously reported on February 13, 2026, each of which represents a contingent right to receive one share of common stock of ATEN, with vesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between February 12, 2026 and February 12, 2030. The second achievement date occurred on April 27, 2026, as certified by the compensation committee of ATEN, resulting in 2,989 units meeting the appropriate performance-based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-half (1/2) on May 14, 2026 and an additional one-fourth (1/4) on each of the first and second anniversaries of April 27, 2026, subject to continued employment. These shares are reflected on Table I."}],"balance_after":0,"derivative":{"expiration_date":"2030-02-12","underlying":"Common Stock","underlying_shares":2989},"source":{"system":"sec-edgar","filing":"0002085974-26-000010","document":"wk-form4_1778882051.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1580808/000208597426000010/wk-form4_1778882051.xml","form_type":"4"}},{"id":776668,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":46810,"kind":"person","name":"Caron Michelle Elizabeth","position":1,"cik":"0002085974","reported_name":"Caron Michelle Elizabeth","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2026-05-15T21:54:13.000Z","date":"2026-05-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":748,"price":27,"value":20196.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares automatically withheld, on a non-discretionary basis, for tax purposes related to a Feburary 12, 2026 performance-based restricted stock unit grant that vested on May 14, 2026."}],"balance_after":35626,"source":{"system":"sec-edgar","filing":"0002085974-26-000010","document":"wk-form4_1778882051.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1580808/000208597426000010/wk-form4_1778882051.xml","form_type":"4"}},{"id":776667,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":46810,"kind":"person","name":"Caron Michelle Elizabeth","position":1,"cik":"0002085974","reported_name":"Caron Michelle Elizabeth","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2026-05-15T21:54:13.000Z","date":"2026-05-14","kind":"exercise","planned":false,"acquired":true,"shares":2989,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Performance-Based Restricted Stock Units that were previously reported on February 13, 2026, each of which represents a contingent right to receive one share of common stock of ATEN, with vesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between February 12, 2026 and February 12, 2030. The second achievement date occurred on April 27, 2026, as certified by the compensation committee of ATEN, resulting in 2,989 units meeting the appropriate performance-based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-half (1/2) on May 14, 2026 and an additional one-fourth (1/4) on each of the first and second anniversaries of April 27, 2026, subject to continued employment. These shares are reflected on Table I."}],"balance_after":36374,"source":{"system":"sec-edgar","filing":"0002085974-26-000010","document":"wk-form4_1778882051.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1580808/000208597426000010/wk-form4_1778882051.xml","form_type":"4"}},{"id":776675,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":46811,"kind":"person","name":"Trivedi Dhrupad","position":1,"cik":"0001570462","reported_name":"Trivedi Dhrupad","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Performance-based Restricted Stock Units","published_at":"2026-05-15T21:52:45.000Z","date":"2026-05-14","kind":"exercise","planned":false,"acquired":false,"shares":63406,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Performance-Based Restricted Stock Units were previously reported on February 10, 2025, each of which represents a contingent right to receive one share of common stock of ATEN, with vesting\nsubject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between February 6,\n2025 and February 6, 2029. The second achievement date occurred on May 6, 2026, as certified by the compensation committee of ATEN, resulting in 63,406 units meeting the appropriate performance based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-half (1/2) on May 14, 2026 and an additional one-fourth (1/4) on each of the first and second anniversaries of May 6, 2026, subject to continued employment. These shares are reflected on Table I."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Performance-Based Restricted Stock Units were previously reported on February 10, 2025, each of which represents a contingent right to receive one share of common stock of ATEN, with vesting\nsubject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between February 6,\n2025 and February 6, 2029. The second achievement date occurred on May 6, 2026, as certified by the compensation committee of ATEN, resulting in 63,406 units meeting the appropriate performance based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-half (1/2) on May 14, 2026 and an additional one-fourth (1/4) on each of the first and second anniversaries of May 6, 2026, subject to continued employment. These shares are reflected on Table I."}],"balance_after":0,"derivative":{"expiration_date":"2029-02-06","underlying":"Common Stock","underlying_shares":63406},"source":{"system":"sec-edgar","filing":"0001570462-26-000021","document":"wk-form4_1778881963.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000157046226000021/wk-form4_1778881963.xml","form_type":"4"}},{"id":776674,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":46811,"kind":"person","name":"Trivedi Dhrupad","position":1,"cik":"0001570462","reported_name":"Trivedi Dhrupad","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Performance-based Restricted Stock Units","published_at":"2026-05-15T21:52:45.000Z","date":"2026-05-14","kind":"exercise","planned":false,"acquired":false,"shares":65758,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Performance-Based Restricted Stock Units that were previously reported on February 13, 2026, each of which represents a contingent right to receive one share of common stock of ATEN, with vesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between February 12, 2026 and February 12, 2030. The second achievement date occurred on April 27, 2026, as certified by the compensation committee of ATEN, resulting in 65,758 units meeting the appropriate performance-based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-half (1/2) on May 14, 2026 and an additional one-fourth (1/4) on each of the first and second anniversaries of April 27, 2026, subject to continued employment. These shares are reflected on Table I."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Performance-Based Restricted Stock Units that were previously reported on February 13, 2026, each of which represents a contingent right to receive one share of common stock of ATEN, with vesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between February 12, 2026 and February 12, 2030. The second achievement date occurred on April 27, 2026, as certified by the compensation committee of ATEN, resulting in 65,758 units meeting the appropriate performance-based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-half (1/2) on May 14, 2026 and an additional one-fourth (1/4) on each of the first and second anniversaries of April 27, 2026, subject to continued employment. These shares are reflected on Table I."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"The amount of securities beneficially owned following the reported transaction has been corrected to reflect a clerical error in the previous filing on May 6, 2026. The correct number of shares meeting the appropriate performance-based condition for this award reported on the Form 4 filed by the reporting person on May 6, 2026 should have been 65,758, not 65,753, as previously reported."}],"balance_after":0,"derivative":{"expiration_date":"2030-02-12","underlying":"Common Stock","underlying_shares":65758},"source":{"system":"sec-edgar","filing":"0001570462-26-000021","document":"wk-form4_1778881963.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000157046226000021/wk-form4_1778881963.xml","form_type":"4"}},{"id":776673,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":46811,"kind":"person","name":"Trivedi Dhrupad","position":1,"cik":"0001570462","reported_name":"Trivedi Dhrupad","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-05-15T21:52:45.000Z","date":"2026-05-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":32858,"price":27,"value":887166.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F4","text":"Includes 16,130 shares and 16,728 shares automatically withheld, on a non-discretionary basis, for tax purposes related to a February 6, 2025 performance-based restricted stock unit grant and a\nFebruary 12, 2026 performance-based restricted stock unit grant, respectively, each that vested on May 14, 2026."}],"balance_after":887847,"source":{"system":"sec-edgar","filing":"0001570462-26-000021","document":"wk-form4_1778881963.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000157046226000021/wk-form4_1778881963.xml","form_type":"4"}},{"id":776672,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":46811,"kind":"person","name":"Trivedi Dhrupad","position":1,"cik":"0001570462","reported_name":"Trivedi Dhrupad","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-05-15T21:52:45.000Z","date":"2026-05-14","kind":"exercise","planned":false,"acquired":true,"shares":63406,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Performance-Based Restricted Stock Units were previously reported on February 10, 2025, each of which represents a contingent right to receive one share of common stock of ATEN, with vesting\nsubject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between February 6,\n2025 and February 6, 2029. The second achievement date occurred on May 6, 2026, as certified by the compensation committee of ATEN, resulting in 63,406 units meeting the appropriate performance based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-half (1/2) on May 14, 2026 and an additional one-fourth (1/4) on each of the first and second anniversaries of May 6, 2026, subject to continued employment. These shares are reflected on Table I."}],"balance_after":920705,"source":{"system":"sec-edgar","filing":"0001570462-26-000021","document":"wk-form4_1778881963.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000157046226000021/wk-form4_1778881963.xml","form_type":"4"}},{"id":776671,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":46811,"kind":"person","name":"Trivedi Dhrupad","position":1,"cik":"0001570462","reported_name":"Trivedi Dhrupad","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-05-15T21:52:45.000Z","date":"2026-05-14","kind":"exercise","planned":false,"acquired":true,"shares":65758,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Performance-Based Restricted Stock Units that were previously reported on February 13, 2026, each of which represents a contingent right to receive one share of common stock of ATEN, with vesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between February 12, 2026 and February 12, 2030. The second achievement date occurred on April 27, 2026, as certified by the compensation committee of ATEN, resulting in 65,758 units meeting the appropriate performance-based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-half (1/2) on May 14, 2026 and an additional one-fourth (1/4) on each of the first and second anniversaries of April 27, 2026, subject to continued employment. These shares are reflected on Table I."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"The amount of securities beneficially owned following the reported transaction has been corrected to reflect a clerical error in the previous filing on May 6, 2026. The correct number of shares meeting the appropriate performance-based condition for this award reported on the Form 4 filed by the reporting person on May 6, 2026 should have been 65,758, not 65,753, as previously reported."}],"balance_after":857299,"source":{"system":"sec-edgar","filing":"0001570462-26-000021","document":"wk-form4_1778881963.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000157046226000021/wk-form4_1778881963.xml","form_type":"4"}},{"id":777272,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":24191,"kind":"person","name":"Weber Robert Scott","position":1,"cik":"0001936128","reported_name":"Weber Robert Scott","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel"}}],"security":"Performance-based Restricted Stock Units","published_at":"2026-05-15T21:50:50.000Z","date":"2026-05-14","kind":"exercise","planned":false,"acquired":false,"shares":3882,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Performance-Based Restricted Stock Units were previously reported on February 10, 2025, each of which represents a contingent right to receive one share of common stock of ATEN, with vesting\nsubject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between February 6,\n2025 and February 6, 2029. The second achievement date occurred on May 6, 2026, as certified by the compensation committee of ATEN, resulting in 3,882 units meeting the appropriate performance\nbased conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-half (1/2) on May 14, 2026 and an additional one-fourth (1/4) on each of the first and second anniversaries of May 6, 2026, subject to continued employment. These shares are reflected on Table I."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Performance-Based Restricted Stock Units were previously reported on February 10, 2025, each of which represents a contingent right to receive one share of common stock of ATEN, with vesting\nsubject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between February 6,\n2025 and February 6, 2029. The second achievement date occurred on May 6, 2026, as certified by the compensation committee of ATEN, resulting in 3,882 units meeting the appropriate performance\nbased conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-half (1/2) on May 14, 2026 and an additional one-fourth (1/4) on each of the first and second anniversaries of May 6, 2026, subject to continued employment. These shares are reflected on Table I."}],"balance_after":0,"derivative":{"expiration_date":"2029-02-06","underlying":"Common Stock","underlying_shares":3882},"source":{"system":"sec-edgar","filing":"0001936128-26-000019","document":"wk-form4_1778881847.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1936128/000193612826000019/wk-form4_1778881847.xml","form_type":"4"}},{"id":777271,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":24191,"kind":"person","name":"Weber Robert Scott","position":1,"cik":"0001936128","reported_name":"Weber Robert Scott","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel"}}],"security":"Performance-based Restricted Stock Units","published_at":"2026-05-15T21:50:50.000Z","date":"2026-05-14","kind":"exercise","planned":false,"acquired":false,"shares":3706,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Performance-Based Restricted Stock Units that were previously reported on February 13, 2026, each of which represents a contingent right to receive one share of common stock of ATEN, with vesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between February 12, 2026 and February 12, 2030. The second achievement date occurred on April 27, 2026, as certified by the compensation committee of ATEN, resulting in 3,706 units meeting the appropriate performance-based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-half (1/2) on May 14, 2026 and an additional one-fourth (1/4) on each of the first and second anniversaries of April 27, 2026, subject to continued employment. These shares are reflected on Table I."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Performance-Based Restricted Stock Units that were previously reported on February 13, 2026, each of which represents a contingent right to receive one share of common stock of ATEN, with vesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between February 12, 2026 and February 12, 2030. The second achievement date occurred on April 27, 2026, as certified by the compensation committee of ATEN, resulting in 3,706 units meeting the appropriate performance-based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-half (1/2) on May 14, 2026 and an additional one-fourth (1/4) on each of the first and second anniversaries of April 27, 2026, subject to continued employment. These shares are reflected on Table I."}],"balance_after":0,"derivative":{"expiration_date":"2030-02-12","underlying":"Common Stock","underlying_shares":3706},"source":{"system":"sec-edgar","filing":"0001936128-26-000019","document":"wk-form4_1778881847.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1936128/000193612826000019/wk-form4_1778881847.xml","form_type":"4"}},{"id":777270,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":24191,"kind":"person","name":"Weber Robert Scott","position":1,"cik":"0001936128","reported_name":"Weber Robert Scott","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel"}}],"security":"Common Stock","published_at":"2026-05-15T21:50:50.000Z","date":"2026-05-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":1930,"price":27,"value":52110.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Includes 987 shares and 943 shares automatically withheld, on a non-discretionary basis, for tax purposes related to a February 6, 2025 performance-based restricted stock unit grant and a February\n12, 2026 performance-based restricted stock unit grant, respectively, each that vested on May 14, 2026."}],"balance_after":65527,"source":{"system":"sec-edgar","filing":"0001936128-26-000019","document":"wk-form4_1778881847.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1936128/000193612826000019/wk-form4_1778881847.xml","form_type":"4"}},{"id":777269,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":24191,"kind":"person","name":"Weber Robert Scott","position":1,"cik":"0001936128","reported_name":"Weber Robert Scott","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel"}}],"security":"Common Stock","published_at":"2026-05-15T21:50:50.000Z","date":"2026-05-14","kind":"exercise","planned":false,"acquired":true,"shares":3882,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Performance-Based Restricted Stock Units were previously reported on February 10, 2025, each of which represents a contingent right to receive one share of common stock of ATEN, with vesting\nsubject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between February 6,\n2025 and February 6, 2029. The second achievement date occurred on May 6, 2026, as certified by the compensation committee of ATEN, resulting in 3,882 units meeting the appropriate performance\nbased conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-half (1/2) on May 14, 2026 and an additional one-fourth (1/4) on each of the first and second anniversaries of May 6, 2026, subject to continued employment. These shares are reflected on Table I."}],"balance_after":67457,"source":{"system":"sec-edgar","filing":"0001936128-26-000019","document":"wk-form4_1778881847.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1936128/000193612826000019/wk-form4_1778881847.xml","form_type":"4"}},{"id":777268,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":24191,"kind":"person","name":"Weber Robert Scott","position":1,"cik":"0001936128","reported_name":"Weber Robert Scott","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel"}}],"security":"Common Stock","published_at":"2026-05-15T21:50:50.000Z","date":"2026-05-14","kind":"exercise","planned":false,"acquired":true,"shares":3706,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Performance-Based Restricted Stock Units that were previously reported on February 13, 2026, each of which represents a contingent right to receive one share of common stock of ATEN, with vesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between February 12, 2026 and February 12, 2030. The second achievement date occurred on April 27, 2026, as certified by the compensation committee of ATEN, resulting in 3,706 units meeting the appropriate performance-based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-half (1/2) on May 14, 2026 and an additional one-fourth (1/4) on each of the first and second anniversaries of April 27, 2026, subject to continued employment. These shares are reflected on Table I."}],"balance_after":63575,"source":{"system":"sec-edgar","filing":"0001936128-26-000019","document":"wk-form4_1778881847.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1936128/000193612826000019/wk-form4_1778881847.xml","form_type":"4"}},{"id":789875,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":10128,"kind":"person","name":"Singer Eric","position":1,"cik":"0001443284","reported_name":"Singer Eric","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-07T01:32:43.000Z","date":"2026-05-05","kind":"sale","planned":false,"acquired":false,"shares":24698,"price":27.21,"value":672032.58,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This is the weighted average price of the shares sold, which ranged from $26.88 to $27.41 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4."}],"balance_after":68806,"source":{"system":"sec-edgar","filing":"0001443284-26-000005","document":"wk-form4_1778117560.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1443284/000144328426000005/wk-form4_1778117560.xml","form_type":"4"}},{"id":789537,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":46811,"kind":"person","name":"Trivedi Dhrupad","position":1,"cik":"0001570462","reported_name":"Trivedi Dhrupad","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Performance-based Restricted Stock Units","published_at":"2026-05-07T01:30:51.000Z","date":"2026-05-05","kind":"exercise","planned":false,"acquired":false,"shares":65753,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Performance-Based Restricted Stock Units that were previously reported on February 13, 2026, each of which represents a contingent right to receive one share of common stock of ATEN, with vesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between February 12, 2026 and February 12, 2030. The first achievement date occurred on April 22, 2026, as certified by the compensation committee of ATEN, resulting in 65,753 units meeting the appropriate performance-based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-half (1/2) on May 5, 2026 and an additional one-fourth (1/4) on each of the first and second anniversaries of April 22, 2026, subject to continued employment. These shares are reflected on Table I."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Performance-Based Restricted Stock Units that were previously reported on February 13, 2026, each of which represents a contingent right to receive one share of common stock of ATEN, with vesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between February 12, 2026 and February 12, 2030. The first achievement date occurred on April 22, 2026, as certified by the compensation committee of ATEN, resulting in 65,753 units meeting the appropriate performance-based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-half (1/2) on May 5, 2026 and an additional one-fourth (1/4) on each of the first and second anniversaries of April 22, 2026, subject to continued employment. These shares are reflected on Table I."}],"balance_after":65763,"derivative":{"expiration_date":"2030-02-12","underlying":"Common Stock","underlying_shares":65753},"source":{"system":"sec-edgar","filing":"0001570462-26-000018","document":"wk-form4_1778117448.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000157046226000018/wk-form4_1778117448.xml","form_type":"4"}},{"id":789536,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":46811,"kind":"person","name":"Trivedi Dhrupad","position":1,"cik":"0001570462","reported_name":"Trivedi Dhrupad","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Performance-based Restricted Stock Units","published_at":"2026-05-07T01:30:51.000Z","date":"2026-05-05","kind":"exercise","planned":false,"acquired":false,"shares":63406,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Performance-Based Restricted Stock Units were previously reported on February 10, 2025, each of which represents a contingent right to receive one share of common stock of ATEN, with vesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between February 6, 2025 and February 6, 2029. The first achievement date occurred on April 16, 2026, as certified by the compensation committee of ATEN, resulting in 63,406 units meeting the appropriate performance-based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-half (1/2) on May 5, 2026 and an additional one-fourth (1/4) on each of the first and second anniversaries of April 16, 2026, subject to continued employment. These shares are reflected on Table I."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Performance-Based Restricted Stock Units were previously reported on February 10, 2025, each of which represents a contingent right to receive one share of common stock of ATEN, with vesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between February 6, 2025 and February 6, 2029. The first achievement date occurred on April 16, 2026, as certified by the compensation committee of ATEN, resulting in 63,406 units meeting the appropriate performance-based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-half (1/2) on May 5, 2026 and an additional one-fourth (1/4) on each of the first and second anniversaries of April 16, 2026, subject to continued employment. These shares are reflected on Table I."}],"balance_after":63406,"derivative":{"expiration_date":"2029-02-06","underlying":"Common Stock","underlying_shares":63406},"source":{"system":"sec-edgar","filing":"0001570462-26-000018","document":"wk-form4_1778117448.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000157046226000018/wk-form4_1778117448.xml","form_type":"4"}},{"id":789535,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":46811,"kind":"person","name":"Trivedi Dhrupad","position":1,"cik":"0001570462","reported_name":"Trivedi Dhrupad","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-05-07T01:30:51.000Z","date":"2026-05-06","kind":"tax_withholding","planned":false,"acquired":false,"shares":32858,"price":27.13,"value":891437.54,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Includes 16,130 shares and 16,728 shares automatically withheld, on a non-discretionary basis, for tax purposes related to a February 6, 2025 performance-based restricted stock unit grant and a February 12, 2026 performance-based restricted stock unit grant, respectively, each that vested on May 5, 2026."}],"balance_after":791536,"source":{"system":"sec-edgar","filing":"0001570462-26-000018","document":"wk-form4_1778117448.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000157046226000018/wk-form4_1778117448.xml","form_type":"4"}},{"id":789534,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":46811,"kind":"person","name":"Trivedi Dhrupad","position":1,"cik":"0001570462","reported_name":"Trivedi Dhrupad","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-05-07T01:30:51.000Z","date":"2026-05-05","kind":"exercise","planned":false,"acquired":true,"shares":65753,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Performance-Based Restricted Stock Units that were previously reported on February 13, 2026, each of which represents a contingent right to receive one share of common stock of ATEN, with vesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between February 12, 2026 and February 12, 2030. The first achievement date occurred on April 22, 2026, as certified by the compensation committee of ATEN, resulting in 65,753 units meeting the appropriate performance-based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-half (1/2) on May 5, 2026 and an additional one-fourth (1/4) on each of the first and second anniversaries of April 22, 2026, subject to continued employment. These shares are reflected on Table I."}],"balance_after":824394,"source":{"system":"sec-edgar","filing":"0001570462-26-000018","document":"wk-form4_1778117448.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000157046226000018/wk-form4_1778117448.xml","form_type":"4"}},{"id":789533,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":46811,"kind":"person","name":"Trivedi Dhrupad","position":1,"cik":"0001570462","reported_name":"Trivedi Dhrupad","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-05-07T01:30:51.000Z","date":"2026-05-05","kind":"exercise","planned":false,"acquired":true,"shares":63406,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Performance-Based Restricted Stock Units were previously reported on February 10, 2025, each of which represents a contingent right to receive one share of common stock of ATEN, with vesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between February 6, 2025 and February 6, 2029. The first achievement date occurred on April 16, 2026, as certified by the compensation committee of ATEN, resulting in 63,406 units meeting the appropriate performance-based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-half (1/2) on May 5, 2026 and an additional one-fourth (1/4) on each of the first and second anniversaries of April 16, 2026, subject to continued employment. These shares are reflected on Table I."}],"balance_after":758641,"source":{"system":"sec-edgar","filing":"0001570462-26-000018","document":"wk-form4_1778117448.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000157046226000018/wk-form4_1778117448.xml","form_type":"4"}},{"id":790084,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":24191,"kind":"person","name":"Weber Robert Scott","position":1,"cik":"0001936128","reported_name":"Weber Robert Scott","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel"}}],"security":"Performance-based Restricted Stock Units","published_at":"2026-05-07T01:29:26.000Z","date":"2026-05-05","kind":"exercise","planned":false,"acquired":false,"shares":3707,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Performance-Based Restricted Stock Units that were previously reported on February 13, 2026, each of which represents a contingent right to receive one share of common stock of ATEN, with vesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between February 12, 2026 and February 12, 2030. The first achievement date occurred on April 22, 2026, as certified by the compensation committee of ATEN, resulting in 3,707 units meeting the appropriate performance-based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-half (1/2) on May 5, 2026 and an additional one-fourth (1/4) on each of the first and second anniversaries of April 22, 2026, subject to continued employment. These shares are reflected on Table I."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Performance-Based Restricted Stock Units that were previously reported on February 13, 2026, each of which represents a contingent right to receive one share of common stock of ATEN, with vesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between February 12, 2026 and February 12, 2030. The first achievement date occurred on April 22, 2026, as certified by the compensation committee of ATEN, resulting in 3,707 units meeting the appropriate performance-based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-half (1/2) on May 5, 2026 and an additional one-fourth (1/4) on each of the first and second anniversaries of April 22, 2026, subject to continued employment. 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The second achievement date occurred on February 28, 2025, as certified by the compensation committee of ATEN, resulting in 10,125 units meeting the\nappropriate performance-based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-half (1/2) on March 10, 2025 and an additional one-fourth (1/4) on each of the first and second anniversaries of February 28, 2025, subject to continued employment. These shares are reflected on Table I."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"PSUs that were previously reported on February 22, 2023, each of which represents a contingent right to receive one share of common stock of ATEN, with\nvesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between\nFebruary 21, 2023 and February 21, 2027. The second achievement date occurred on February 28, 2025, as certified by the compensation committee of ATEN, resulting in 10,125 units meeting the\nappropriate performance-based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-half (1/2) on March 10, 2025 and an additional one-fourth (1/4) on each of the first and second anniversaries of February 28, 2025, subject to continued employment. These shares are reflected on Table I."}],"balance_after":0,"derivative":{"expiration_date":"2027-02-21","underlying":"Common Stock","underlying_shares":10125},"source":{"system":"sec-edgar","filing":"0001580808-25-000053","document":"wk-form4_1741742800.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1580808/000158080825000053/wk-form4_1741742800.xml","form_type":"4"}},{"id":1211594,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":76500,"kind":"person","name":"Becker Brian","position":1,"cik":"0001826095","reported_name":"Becker Brian","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Performance-based Restricted Stock Units","published_at":"2025-03-12T01:26:46.000Z","date":"2025-03-10","kind":"exercise","planned":false,"acquired":false,"shares":7306,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Performance-Based Restricted Stock (\"PSUs\") Units were previously reported on January 27, 2022, each of which represents a contingent right to receive one share of common stock of ATEN, with vesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between January 25, 2022 and January 25, 2026. The third achievement date occurred on February 24, 2025, as certified by the compensation committee of ATEN, resulting in 7,306 units meeting the appropriate performance-based conditions.  However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-third (1/3) on March 10, 2025 and an additional one-third (1/3) to vest on the each of the first and second anniversaries of February 24, 2025, subject to continued employment. These shares are reflected on Table I."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Performance-Based Restricted Stock (\"PSUs\") Units were previously reported on January 27, 2022, each of which represents a contingent right to receive one share of common stock of ATEN, with vesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between January 25, 2022 and January 25, 2026. The third achievement date occurred on February 24, 2025, as certified by the compensation committee of ATEN, resulting in 7,306 units meeting the appropriate performance-based conditions.  However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-third (1/3) on March 10, 2025 and an additional one-third (1/3) to vest on the each of the first and second anniversaries of February 24, 2025, subject to continued employment. These shares are reflected on Table I."}],"balance_after":0,"derivative":{"exercise_price":0,"expiration_date":"2026-01-25","underlying":"Common Stock","underlying_shares":7306},"source":{"system":"sec-edgar","filing":"0001580808-25-000053","document":"wk-form4_1741742800.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1580808/000158080825000053/wk-form4_1741742800.xml","form_type":"4"}},{"id":1211593,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":76500,"kind":"person","name":"Becker Brian","position":1,"cik":"0001826095","reported_name":"Becker Brian","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2025-03-12T01:26:46.000Z","date":"2025-03-11","kind":"tax_withholding","planned":false,"acquired":false,"shares":3807,"price":19.38,"value":73779.66,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Includes 1,237 shares automatically withheld, on a non-discretionary basis, for tax purposes related to a January 25, 2022 performance restricted stock unit grant, and 2,570 shares automatically\nwithheld, on a non-discretionary basis, for tax purposes related to a February 21, 2023 performance restricted stock unit grant, each that vested on March 10, 2025."}],"balance_after":83999,"source":{"system":"sec-edgar","filing":"0001580808-25-000053","document":"wk-form4_1741742800.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1580808/000158080825000053/wk-form4_1741742800.xml","form_type":"4"}},{"id":1211592,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":76500,"kind":"person","name":"Becker Brian","position":1,"cik":"0001826095","reported_name":"Becker Brian","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2025-03-12T01:26:46.000Z","date":"2025-03-10","kind":"exercise","planned":false,"acquired":true,"shares":10125,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"PSUs that were previously reported on February 22, 2023, each of which represents a contingent right to receive one share of common stock of ATEN, with\nvesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between\nFebruary 21, 2023 and February 21, 2027. The second achievement date occurred on February 28, 2025, as certified by the compensation committee of ATEN, resulting in 10,125 units meeting the\nappropriate performance-based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-half (1/2) on March 10, 2025 and an additional one-fourth (1/4) on each of the first and second anniversaries of February 28, 2025, subject to continued employment. These shares are reflected on Table I."}],"balance_after":87806,"source":{"system":"sec-edgar","filing":"0001580808-25-000053","document":"wk-form4_1741742800.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1580808/000158080825000053/wk-form4_1741742800.xml","form_type":"4"}},{"id":1211591,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":76500,"kind":"person","name":"Becker Brian","position":1,"cik":"0001826095","reported_name":"Becker Brian","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2025-03-12T01:26:46.000Z","date":"2025-03-10","kind":"exercise","planned":false,"acquired":true,"shares":7306,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Performance-Based Restricted Stock (\"PSUs\") Units were previously reported on January 27, 2022, each of which represents a contingent right to receive one share of common stock of ATEN, with vesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between January 25, 2022 and January 25, 2026. The third achievement date occurred on February 24, 2025, as certified by the compensation committee of ATEN, resulting in 7,306 units meeting the appropriate performance-based conditions.  However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-third (1/3) on March 10, 2025 and an additional one-third (1/3) to vest on the each of the first and second anniversaries of February 24, 2025, subject to continued employment. These shares are reflected on Table I."}],"balance_after":77681,"source":{"system":"sec-edgar","filing":"0001580808-25-000053","document":"wk-form4_1741742800.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1580808/000158080825000053/wk-form4_1741742800.xml","form_type":"4"}},{"id":1212641,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":24191,"kind":"person","name":"Weber Robert Scott","position":1,"cik":"0001936128","reported_name":"Weber Robert Scott","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel"}}],"security":"Performance-based Restricted Stock Units","published_at":"2025-03-12T01:21:05.000Z","date":"2025-03-10","kind":"exercise","planned":false,"acquired":false,"shares":5956,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Performance-Based Restricted Stock Units that were previously reported on February 22, 2023, each of which represents a contingent right to receive one share of common stock of ATEN, with\nvesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between\nFebruary 21, 2023 and February 21, 2027. The second achievement date occurred on February 28, 2025, as certified by the compensation committee of ATEN, resulting in 5,956 units meeting the\nappropriate performance-based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-half (1/2) on March 10, 2025 and an additional one-fourth (1/4) on each of the first and second anniversaries of February 28, 2025, subject to continued employment. These shares are reflected on Table I."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Performance-Based Restricted Stock Units that were previously reported on February 22, 2023, each of which represents a contingent right to receive one share of common stock of ATEN, with\nvesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between\nFebruary 21, 2023 and February 21, 2027. The second achievement date occurred on February 28, 2025, as certified by the compensation committee of ATEN, resulting in 5,956 units meeting the\nappropriate performance-based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-half (1/2) on March 10, 2025 and an additional one-fourth (1/4) on each of the first and second anniversaries of February 28, 2025, subject to continued employment. These shares are reflected on Table I."}],"balance_after":0,"derivative":{"expiration_date":"2027-02-21","underlying":"Common Stock","underlying_shares":5956},"source":{"system":"sec-edgar","filing":"0001580808-25-000051","document":"wk-form4_1741742459.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1936128/000158080825000051/wk-form4_1741742459.xml","form_type":"4"}},{"id":1212640,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":24191,"kind":"person","name":"Weber Robert Scott","position":1,"cik":"0001936128","reported_name":"Weber Robert Scott","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel"}}],"security":"Common Stock","published_at":"2025-03-12T01:21:05.000Z","date":"2025-03-11","kind":"tax_withholding","planned":false,"acquired":false,"shares":1512,"price":19.38,"value":29302.56,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares automatically withheld, on a non-discretionary basis, for tax purposes related to a February 21, 2023 performance restricted stock unit grant that vested on March 10, 2025."}],"balance_after":63507,"source":{"system":"sec-edgar","filing":"0001580808-25-000051","document":"wk-form4_1741742459.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1936128/000158080825000051/wk-form4_1741742459.xml","form_type":"4"}},{"id":1212639,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":24191,"kind":"person","name":"Weber Robert Scott","position":1,"cik":"0001936128","reported_name":"Weber Robert Scott","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel"}}],"security":"Common Stock","published_at":"2025-03-12T01:21:05.000Z","date":"2025-03-10","kind":"exercise","planned":false,"acquired":true,"shares":5956,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Performance-Based Restricted Stock Units that were previously reported on February 22, 2023, each of which represents a contingent right to receive one share of common stock of ATEN, with\nvesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between\nFebruary 21, 2023 and February 21, 2027. The second achievement date occurred on February 28, 2025, as certified by the compensation committee of ATEN, resulting in 5,956 units meeting the\nappropriate performance-based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-half (1/2) on March 10, 2025 and an additional one-fourth (1/4) on each of the first and second anniversaries of February 28, 2025, subject to continued employment. These shares are reflected on Table I."}],"balance_after":65019,"source":{"system":"sec-edgar","filing":"0001580808-25-000051","document":"wk-form4_1741742459.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1936128/000158080825000051/wk-form4_1741742459.xml","form_type":"4"}},{"id":1211625,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":46811,"kind":"person","name":"Trivedi Dhrupad","position":1,"cik":"0001570462","reported_name":"Trivedi Dhrupad","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Performance-based Restricted Stock Units","published_at":"2025-03-12T01:17:26.000Z","date":"2025-03-10","kind":"exercise","planned":false,"acquired":false,"shares":79417,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"PSUs that were previously reported on February 22, 2023, each of which represents a contingent right to receive one share of common stock of ATEN, with\nvesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between\nFebruary 21, 2023 and February 21, 2027. The second achievement date occurred on February 28, 2025, as certified by the compensation committee of ATEN, resulting in 79,417 units meeting the\nappropriate performance-based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-half (1/2) on March 10, 2025 and an additional one-fourth (1/4) on each of the first and second anniversaries of February 28, 2025, subject to continued employment. These shares are reflected on Table I."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"PSUs that were previously reported on February 22, 2023, each of which represents a contingent right to receive one share of common stock of ATEN, with\nvesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between\nFebruary 21, 2023 and February 21, 2027. The second achievement date occurred on February 28, 2025, as certified by the compensation committee of ATEN, resulting in 79,417 units meeting the\nappropriate performance-based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-half (1/2) on March 10, 2025 and an additional one-fourth (1/4) on each of the first and second anniversaries of February 28, 2025, subject to continued employment. These shares are reflected on Table I."}],"balance_after":0,"derivative":{"expiration_date":"2027-02-21","underlying":"Common Stock","underlying_shares":79417},"source":{"system":"sec-edgar","filing":"0001580808-25-000049","document":"wk-form4_1741742240.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080825000049/wk-form4_1741742240.xml","form_type":"4"}},{"id":1211624,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":46811,"kind":"person","name":"Trivedi Dhrupad","position":1,"cik":"0001570462","reported_name":"Trivedi Dhrupad","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Performance-based Restricted Stock Units","published_at":"2025-03-12T01:17:26.000Z","date":"2025-03-10","kind":"exercise","planned":false,"acquired":false,"shares":48711,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Performance-Based Restricted Stock Units (\"PSUs\") were previously reported on January 27, 2022, each of which represents a contingent right to receive one share of common stock of ATEN, with vesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between January 25, 2022 and January 25, 2026. The third milestone achievement date occurred on February 24, 2025, as certified by the compensation committee of ATEN, resulting in 48,711 units meeting the appropriate performance-based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-third (1/3) on March 10, 2025 and an additional one-third (1/3) on each of the first and second anniversaries of February 24, 2025, subject to continued employment. These shares are reflected on Table I."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Performance-Based Restricted Stock Units (\"PSUs\") were previously reported on January 27, 2022, each of which represents a contingent right to receive one share of common stock of ATEN, with vesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between January 25, 2022 and January 25, 2026. The third milestone achievement date occurred on February 24, 2025, as certified by the compensation committee of ATEN, resulting in 48,711 units meeting the appropriate performance-based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-third (1/3) on March 10, 2025 and an additional one-third (1/3) on each of the first and second anniversaries of February 24, 2025, subject to continued employment. These shares are reflected on Table I."}],"balance_after":0,"derivative":{"expiration_date":"2026-01-25","underlying":"Common Stock","underlying_shares":48711},"source":{"system":"sec-edgar","filing":"0001580808-25-000049","document":"wk-form4_1741742240.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080825000049/wk-form4_1741742240.xml","form_type":"4"}},{"id":1211623,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":46811,"kind":"person","name":"Trivedi Dhrupad","position":1,"cik":"0001570462","reported_name":"Trivedi Dhrupad","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2025-03-12T01:17:26.000Z","date":"2025-03-11","kind":"tax_withholding","planned":false,"acquired":false,"shares":28409,"price":19.38,"value":550566.42,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Includes 8,245 shares automatically withheld, on a non-discretionary basis, for tax purposes related to a January 25, 2022 performance restricted stock unit grant, and 20,164 shares automatically withheld, on a non-discretionary basis, for tax purposes related to a February 21, 2023 performance restricted stock unit grant, each that vested on March 10, 2025."}],"balance_after":788115,"source":{"system":"sec-edgar","filing":"0001580808-25-000049","document":"wk-form4_1741742240.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080825000049/wk-form4_1741742240.xml","form_type":"4"}},{"id":1211622,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":46811,"kind":"person","name":"Trivedi Dhrupad","position":1,"cik":"0001570462","reported_name":"Trivedi Dhrupad","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2025-03-12T01:17:26.000Z","date":"2025-03-10","kind":"exercise","planned":false,"acquired":true,"shares":79417,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"PSUs that were previously reported on February 22, 2023, each of which represents a contingent right to receive one share of common stock of ATEN, with\nvesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between\nFebruary 21, 2023 and February 21, 2027. The second achievement date occurred on February 28, 2025, as certified by the compensation committee of ATEN, resulting in 79,417 units meeting the\nappropriate performance-based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-half (1/2) on March 10, 2025 and an additional one-fourth (1/4) on each of the first and second anniversaries of February 28, 2025, subject to continued employment. These shares are reflected on Table I."}],"balance_after":816524,"source":{"system":"sec-edgar","filing":"0001580808-25-000049","document":"wk-form4_1741742240.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080825000049/wk-form4_1741742240.xml","form_type":"4"}},{"id":1211621,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":46811,"kind":"person","name":"Trivedi Dhrupad","position":1,"cik":"0001570462","reported_name":"Trivedi Dhrupad","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2025-03-12T01:17:26.000Z","date":"2025-03-10","kind":"exercise","planned":false,"acquired":true,"shares":48711,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Performance-Based Restricted Stock Units (\"PSUs\") were previously reported on January 27, 2022, each of which represents a contingent right to receive one share of common stock of ATEN, with vesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between January 25, 2022 and January 25, 2026. The third milestone achievement date occurred on February 24, 2025, as certified by the compensation committee of ATEN, resulting in 48,711 units meeting the appropriate performance-based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-third (1/3) on March 10, 2025 and an additional one-third (1/3) on each of the first and second anniversaries of February 24, 2025, subject to continued employment. These shares are reflected on Table I."}],"balance_after":737107,"source":{"system":"sec-edgar","filing":"0001580808-25-000049","document":"wk-form4_1741742240.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080825000049/wk-form4_1741742240.xml","form_type":"4"}},{"id":1226529,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":46811,"kind":"person","name":"Trivedi Dhrupad","position":1,"cik":"0001570462","reported_name":"Trivedi Dhrupad","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2025-03-04T23:44:44.000Z","date":"2025-03-04","kind":"sale","planned":true,"acquired":false,"shares":26813,"price":19.8,"value":530897.4,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 27, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"This is the weighted average price of the shares sold, which ranged from $19.59 to $20.06 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4."}],"balance_after":688396,"source":{"system":"sec-edgar","filing":"0001580808-25-000047","document":"wk-form4_1741131878.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080825000047/wk-form4_1741131878.xml","form_type":"4"}},{"id":1226528,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":46811,"kind":"person","name":"Trivedi Dhrupad","position":1,"cik":"0001570462","reported_name":"Trivedi Dhrupad","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2025-03-04T23:44:44.000Z","date":"2025-03-03","kind":"sale","planned":true,"acquired":false,"shares":26812,"price":20.59,"value":552059.08,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 27, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"This is the weighted average price of the shares sold, which ranged from $20.38 to $20.77 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4."}],"balance_after":715209,"source":{"system":"sec-edgar","filing":"0001580808-25-000047","document":"wk-form4_1741131878.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080825000047/wk-form4_1741131878.xml","form_type":"4"}},{"id":1226527,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":46811,"kind":"person","name":"Trivedi Dhrupad","position":1,"cik":"0001570462","reported_name":"Trivedi Dhrupad","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2025-03-04T23:44:44.000Z","date":"2025-02-28","kind":"sale","planned":true,"acquired":false,"shares":26813,"price":20.57,"value":551543.41,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 27, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This is the weighted average price of the shares sold, which ranged from $20.16 to $20.73 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4."}],"balance_after":742021,"source":{"system":"sec-edgar","filing":"0001580808-25-000047","document":"wk-form4_1741131878.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080825000047/wk-form4_1741131878.xml","form_type":"4"}},{"id":1237943,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":46811,"kind":"person","name":"Trivedi Dhrupad","position":1,"cik":"0001570462","reported_name":"Trivedi Dhrupad","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2025-02-28T21:18:03.000Z","date":"2025-02-14","kind":"tax_withholding","planned":false,"acquired":false,"shares":20164,"price":21.68,"value":437155.52,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This amendment to the original Form 4 filed on February 18, 2025 is being filed to correct the number of shares withheld, on a non-discretionary basis, for tax purposes related to a February 21, 2023 performance restricted stock unit grant that vested on February 13, 2025."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"The total number of shares reported in Column 5 of Table I of this amendment is the total owned by the reporting person as of February 27, 2025, which reflects the corrected number of shares withheld and includes subsequent transactions."}],"balance_after":768834,"source":{"system":"sec-edgar","filing":"0001580808-25-000045","document":"wk-form4a_1740777473.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080825000045/wk-form4a_1740777473.xml","form_type":"4/A","original_submission_date":"2025-02-18"}},{"id":1249954,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":24191,"kind":"person","name":"Weber Robert Scott","position":1,"cik":"0001936128","reported_name":"Weber Robert Scott","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel"}}],"security":"Performance-based Restricted Stock Units","published_at":"2025-02-24T21:45:06.000Z","date":"2025-02-20","kind":"exercise","planned":false,"acquired":false,"shares":14920,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Performance-Based Restricted Stock Units were previously reported on July 5, 2022, each of which represents a contingent right to receive one share of common stock of ATEN, with vesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between July 1, 2022 and July 1, 2026. The milestone achievement date occurred on February 10, 2025, as certified by the compensation committee of ATEN, resulting in 14,920 units meeting the appropriate performance-based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-half (1/2) on February 20, 2025 and an additional one-quarter (1/4) on each of the first and second anniversaries of February 10, 2025, subject to continued employment. These shares are reflected on Table I."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Performance-Based Restricted Stock Units were previously reported on July 5, 2022, each of which represents a contingent right to receive one share of common stock of ATEN, with vesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between July 1, 2022 and July 1, 2026. The milestone achievement date occurred on February 10, 2025, as certified by the compensation committee of ATEN, resulting in 14,920 units meeting the appropriate performance-based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-half (1/2) on February 20, 2025 and an additional one-quarter (1/4) on each of the first and second anniversaries of February 10, 2025, subject to continued employment. These shares are reflected on Table I."}],"balance_after":0,"derivative":{"expiration_date":"2026-07-01","underlying":"Common Stock","underlying_shares":14920},"source":{"system":"sec-edgar","filing":"0001580808-25-000037","document":"wk-form4_1740433497.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1936128/000158080825000037/wk-form4_1740433497.xml","form_type":"4"}},{"id":1249953,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":24191,"kind":"person","name":"Weber Robert Scott","position":1,"cik":"0001936128","reported_name":"Weber Robert Scott","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel"}}],"security":"Common Stock","published_at":"2025-02-24T21:45:06.000Z","date":"2025-02-21","kind":"tax_withholding","planned":false,"acquired":false,"shares":3788,"price":21.13,"value":80040.44,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares automatically withheld, on a non-discretionary basis, for tax purposes related to July 1, 2022 performance restricted stock unit grant that vested on February 20, 2025."}],"balance_after":59063,"source":{"system":"sec-edgar","filing":"0001580808-25-000037","document":"wk-form4_1740433497.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1936128/000158080825000037/wk-form4_1740433497.xml","form_type":"4"}},{"id":1249952,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":24191,"kind":"person","name":"Weber Robert Scott","position":1,"cik":"0001936128","reported_name":"Weber Robert Scott","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel"}}],"security":"Common Stock","published_at":"2025-02-24T21:45:06.000Z","date":"2025-02-20","kind":"exercise","planned":false,"acquired":true,"shares":14920,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Performance-Based Restricted Stock Units were previously reported on July 5, 2022, each of which represents a contingent right to receive one share of common stock of ATEN, with vesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between July 1, 2022 and July 1, 2026. The milestone achievement date occurred on February 10, 2025, as certified by the compensation committee of ATEN, resulting in 14,920 units meeting the appropriate performance-based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-half (1/2) on February 20, 2025 and an additional one-quarter (1/4) on each of the first and second anniversaries of February 10, 2025, subject to continued employment. These shares are reflected on Table I."}],"balance_after":62851,"source":{"system":"sec-edgar","filing":"0001580808-25-000037","document":"wk-form4_1740433497.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1936128/000158080825000037/wk-form4_1740433497.xml","form_type":"4"}},{"id":1248909,"issuer":{"id":4574,"kind":"organization","name":"A10 Networks, Inc.","symbol":"ATEN"},"owners":[{"id":76500,"kind":"person","name":"Becker Brian","position":1,"cik":"0001826095","reported_name":"Becker Brian","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Performance-based Restricted Stock Units","published_at":"2025-02-24T21:39:49.000Z","date":"2025-02-20","kind":"exercise","planned":false,"acquired":false,"shares":7307,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Performance-Based Restricted Stock Units were previously reported on January 27, 2022, each of which represents a contingent right to receive one share of common stock of ATEN, with vesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between January 25, 2022 and January 25, 2026. The second milestone achievement date occurred on February 10, 2025, as certified by the compensation committee of ATEN, resulting in 7,307 units meeting the appropriate performance-based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-third (1/3) on February 20, 2025 and an additional one-third (1/3) on each of the first and second anniversaries of February 10, 2025, subject to continued employment. These shares are reflected on Table I."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Performance-Based Restricted Stock Units were previously reported on January 27, 2022, each of which represents a contingent right to receive one share of common stock of ATEN, with vesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between January 25, 2022 and January 25, 2026. The second milestone achievement date occurred on February 10, 2025, as certified by the compensation committee of ATEN, resulting in 7,307 units meeting the appropriate performance-based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-third (1/3) on February 20, 2025 and an additional one-third (1/3) on each of the first and second anniversaries of February 10, 2025, subject to continued employment. These shares are reflected on Table I."}],"balance_after":7306,"derivative":{"exercise_price":0,"expiration_date":"2026-01-25","underlying":"Common Stock","underlying_shares":7307},"source":{"system":"sec-edgar","filing":"0001580808-25-000035","document":"wk-form4_1740433180.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1580808/000158080825000035/wk-form4_1740433180.xml","form_type":"4"}}],"next_cursor":"2025-02-24T21:39:49.000000Z,1248909"}