{"transactions":[{"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 Dhrupad","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-05-15T23:18:51.000Z","date":"2026-05-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":32858,"price":28.03,"value":921009.74,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This amendment to the original Form 4 filed on May 15, 2026 is being filed to correct the price reported in Column 4 of Table I in connection with the shares 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 unti grant, each that vested on May 14, 2026."}],"balance_after":887847,"source":{"system":"sec-edgar","filing":"0001570462-26-000023","document":"wk-form4a_1778887128.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000157046226000023/wk-form4a_1778887128.xml","form_type":"4/A","original_submission_date":"2026-05-15"}},{"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":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. 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Upon achievement of a Performance Milestone, vesting is subject to continued employment with the Company through the applicable vesting date, the first fifty percent ( 50%) of which will occur within thirty (30) days of achievment of the applicable milestone and the balance to vest twenty-five percent (25%) on each of the first and second anniversaries of achievement of the corresponding Performance Milestone."}],"balance_after":131516,"derivative":{"expiration_date":"2030-02-12","underlying":"Common Stock","underlying_shares":131516},"source":{"system":"sec-edgar","filing":"0001570462-26-000010","document":"wk-form4_1771021697.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000157046226000010/wk-form4_1771021697.xml","form_type":"4"}},{"id":904720,"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":"2026-02-13T22:28:20.000Z","date":"2026-02-13","kind":"sale","planned":true,"acquired":false,"shares":33334,"price":20.55,"value":685013.7,"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 September 12, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"This is the weighted average price of the shares sold, which ranged from $20.23 to $20.72 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":713597,"source":{"system":"sec-edgar","filing":"0001570462-26-000010","document":"wk-form4_1771021697.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000157046226000010/wk-form4_1771021697.xml","form_type":"4"}},{"id":904719,"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":"2026-02-13T22:28:20.000Z","date":"2026-02-12","kind":"grant","planned":true,"acquired":true,"shares":131516,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F4","text":"Each share is represented by a Restricted Stock Unit (\"RSU\"). One-third (1/3) of the total RSUs will vest on each of the first three (3) anniversaries of the Vesting Commencement Date (2/1/2026), provided that the Reporting Person continues to serve through each such vesting date."}],"balance_after":746931,"source":{"system":"sec-edgar","filing":"0001570462-26-000010","document":"wk-form4_1771021697.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000157046226000010/wk-form4_1771021697.xml","form_type":"4"}},{"id":904718,"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":"2026-02-13T22:28:20.000Z","date":"2026-02-12","kind":"sale","planned":true,"acquired":false,"shares":33333,"price":20.56,"value":685326.48,"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 September 12, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"This is the weighted average price of the shares sold, which ranged from $20.18 to $21.11 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":615415,"source":{"system":"sec-edgar","filing":"0001570462-26-000010","document":"wk-form4_1771021697.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000157046226000010/wk-form4_1771021697.xml","form_type":"4"}},{"id":904717,"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":"2026-02-13T22:28:20.000Z","date":"2026-02-11","kind":"sale","planned":true,"acquired":false,"shares":33333,"price":20.69,"value":689659.77,"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 September 12, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This is the weighted average price of the shares sold, which ranged from $20.51 to $21.10 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":648748,"source":{"system":"sec-edgar","filing":"0001570462-26-000010","document":"wk-form4_1771021697.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000157046226000010/wk-form4_1771021697.xml","form_type":"4"}},{"id":907199,"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 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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. 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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":1248978,"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":"2025-02-24T21:36:48.000Z","date":"2025-02-20","kind":"exercise","planned":false,"acquired":false,"shares":48713,"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 48,713  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 48,713  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":48711,"derivative":{"expiration_date":"2026-01-25","underlying":"Common Stock","underlying_shares":48713},"source":{"system":"sec-edgar","filing":"0001580808-25-000033","document":"wk-form4_1740433000.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080825000033/wk-form4_1740433000.xml","form_type":"4"}},{"id":1248977,"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":"2025-02-24T21:36:48.000Z","date":"2025-02-21","kind":"tax_withholding","planned":false,"acquired":false,"shares":8245,"price":21.13,"value":174216.85,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares automatially withheld, on a non-discretionary basis, for tax purposes related to January 25, 2022 performance restricted stock unit grant that vested on February 20, 2025."}],"balance_after":768852,"source":{"system":"sec-edgar","filing":"0001580808-25-000033","document":"wk-form4_1740433000.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080825000033/wk-form4_1740433000.xml","form_type":"4"}},{"id":1248976,"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":"2025-02-24T21:36:48.000Z","date":"2025-02-20","kind":"exercise","planned":false,"acquired":true,"shares":48713,"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 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 48,713  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":777097,"source":{"system":"sec-edgar","filing":"0001580808-25-000033","document":"wk-form4_1740433000.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080825000033/wk-form4_1740433000.xml","form_type":"4"}},{"id":1263284,"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":"2025-02-19T01:43:52.000Z","date":"2025-02-13","kind":"exercise","planned":false,"acquired":false,"shares":79418,"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 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 21, 2023 and February 21, 2027. The first achievement date occurred on January 31, 2025, as certified by the compensation committee of ATEN, resulting in 79,418 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 13, 2025 and an additional one-fourth (1/4) on each of the first and second anniversaries of January 31, 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 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 21, 2023 and February 21, 2027. The first achievement date occurred on January 31, 2025, as certified by the compensation committee of ATEN, resulting in 79,418 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 13, 2025 and an additional one-fourth (1/4) on each of the first and second anniversaries of January 31, 2025, subject to continued employment. These shares are reflected on Table I."}],"balance_after":79417,"derivative":{"expiration_date":"2027-02-21","underlying":"Common Stock","underlying_shares":79418},"source":{"system":"sec-edgar","filing":"0001580808-25-000031","document":"wk-form4_1739929426.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080825000031/wk-form4_1739929426.xml","form_type":"4"}},{"id":1263283,"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":"2025-02-19T01:43:52.000Z","date":"2025-02-14","kind":"tax_withholding","planned":false,"acquired":false,"shares":20146,"price":21.68,"value":436765.28,"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 February 13, 2025."}],"balance_after":728384,"source":{"system":"sec-edgar","filing":"0001580808-25-000031","document":"wk-form4_1739929426.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080825000031/wk-form4_1739929426.xml","form_type":"4"}},{"id":1263282,"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":"2025-02-19T01:43:52.000Z","date":"2025-02-13","kind":"exercise","planned":false,"acquired":true,"shares":79418,"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 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 21, 2023 and February 21, 2027. The first achievement date occurred on January 31, 2025, as certified by the compensation committee of ATEN, resulting in 79,418 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 13, 2025 and an additional one-fourth (1/4) on each of the first and second anniversaries of January 31, 2025, subject to continued employment. These shares are reflected on Table I."}],"balance_after":748530,"source":{"system":"sec-edgar","filing":"0001580808-25-000031","document":"wk-form4_1739929426.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080825000031/wk-form4_1739929426.xml","form_type":"4"}},{"id":1276118,"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":"2025-02-10T21:58:44.000Z","date":"2025-02-06","kind":"grant","planned":false,"acquired":true,"shares":126812,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each share is represented by a Performance-based Restricted Stock Unit (\"PSU\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Grant of 126,812 PSUs, 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 period between February 6, 2025 and February 6, 2029. Once a milestone is met, vesting is subject to continued employment with the Company through the applicable vesting date, the first fifty percent (50%) of which will occur within thirty (30) days of achievment of the applicable milestone and the balance to vest twenty-five percent (25%) on each of the first and second anniversaries of achievement of the corresponding performance milestone."}],"balance_after":126812,"derivative":{"expiration_date":"2029-02-06","underlying":"Common Stock","underlying_shares":126812},"source":{"system":"sec-edgar","filing":"0001580808-25-000021","document":"wk-form4_1739224715.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080825000021/wk-form4_1739224715.xml","form_type":"4"}},{"id":1276117,"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":"2025-02-10T21:58:44.000Z","date":"2025-02-06","kind":"grant","planned":false,"acquired":true,"shares":126812,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Each share is represented by a Restricted Stock Unit (\"RSU\"). One-third (1/3) of the total RSUs will vest on each of the first three (3) anniversaries of the Vesting Commencement Date (2/1/2025),\nprovided that the Reporting Person continues to serve through each such vesting date."}],"balance_after":669112,"source":{"system":"sec-edgar","filing":"0001580808-25-000021","document":"wk-form4_1739224715.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080825000021/wk-form4_1739224715.xml","form_type":"4"}},{"id":1283799,"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":"2025-02-04T22:27:28.000Z","date":"2025-02-03","kind":"tax_withholding","planned":false,"acquired":false,"shares":50960,"price":19.61,"value":999325.6,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares automatically withheld, on a non-discretionary basis, for tax purposes related to restricted stock units granted on January 25, 2022, February 21, 2023 and January 30, 2024, each of which vested on February 1, 2025."}],"balance_after":542300,"source":{"system":"sec-edgar","filing":"0001580808-25-000017","document":"wk-form4_1738708042.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080825000017/wk-form4_1738708042.xml","form_type":"4"}},{"id":1294279,"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":"2025-01-27T23:25:08.000Z","date":"2025-01-23","kind":"exercise","planned":false,"acquired":false,"shares":99410,"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 31, 2024, 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 January 30,\n2024 and January 30, 2028. The second milestone achievement date occurred on January 15, 2025, as certified by the compensation committee of ATEN, resulting in 99,410 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 January 23, 2025 and an additional one-fourth (1/4) on each of the first and second anniversaries of January 15, 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 31, 2024, 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 January 30,\n2024 and January 30, 2028. The second milestone achievement date occurred on January 15, 2025, as certified by the compensation committee of ATEN, resulting in 99,410 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 January 23, 2025 and an additional one-fourth (1/4) on each of the first and second anniversaries of January 15, 2025, subject to continued employment. These shares are reflected on Table I."}],"balance_after":0,"derivative":{"expiration_date":"2028-01-30","underlying":"Common Stock","underlying_shares":99410},"source":{"system":"sec-edgar","filing":"0001580808-25-000004","document":"wk-form4_1738020302.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080825000004/wk-form4_1738020302.xml","form_type":"4"}},{"id":1294278,"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":"2025-01-27T23:25:08.000Z","date":"2025-01-24","kind":"tax_withholding","planned":false,"acquired":false,"shares":33953,"price":19.46,"value":660725.38,"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 January 25, 2022 performance restricted stock unit grant and a January 30, 2024 performance restricted stock unit grant that each vested on January 23, 2025."}],"balance_after":593260,"source":{"system":"sec-edgar","filing":"0001580808-25-000004","document":"wk-form4_1738020302.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080825000004/wk-form4_1738020302.xml","form_type":"4"}},{"id":1294277,"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":"2025-01-27T23:25:08.000Z","date":"2025-01-23","kind":"exercise","planned":false,"acquired":true,"shares":99410,"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 January 31, 2024, 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 January 30,\n2024 and January 30, 2028. The second milestone achievement date occurred on January 15, 2025, as certified by the compensation committee of ATEN, resulting in 99,410 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 January 23, 2025 and an additional one-fourth (1/4) on each of the first and second anniversaries of January 15, 2025, subject to continued employment. These shares are reflected on Table I."}],"balance_after":627213,"source":{"system":"sec-edgar","filing":"0001580808-25-000004","document":"wk-form4_1738020302.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080825000004/wk-form4_1738020302.xml","form_type":"4"}},{"id":1320286,"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":"2024-12-31T01:14:51.000Z","date":"2024-12-26","kind":"exercise","planned":false,"acquired":false,"shares":99411,"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 31, 2024, 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 30, 2024 and  January 30, 2028. The first achievement date occurred on December 13, 2024, as certified by the compensation committee of ATEN, resulting in 99,411 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 December 26, 2024 and an additional one-fourth (1/4) on each of the first and second anniversaries of December 13, 2024, 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 31, 2024, 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 30, 2024 and  January 30, 2028. The first achievement date occurred on December 13, 2024, as certified by the compensation committee of ATEN, resulting in 99,411 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 December 26, 2024 and an additional one-fourth (1/4) on each of the first and second anniversaries of December 13, 2024, subject to continued employment. These shares are reflected on Table I."}],"balance_after":99410,"derivative":{"expiration_date":"2028-01-30","underlying":"Common Stock","underlying_shares":99411},"source":{"system":"sec-edgar","filing":"0001580808-24-000138","document":"wk-form4_1735607684.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080824000138/wk-form4_1735607684.xml","form_type":"4"}},{"id":1320285,"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":"2024-12-31T01:14:51.000Z","date":"2024-12-26","kind":"tax_withholding","planned":false,"acquired":false,"shares":25190,"price":18.81,"value":473823.9,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares automatically withheld, on a non-discretionary basis, for tax purposes related to January 30, 2024 performance restricted stock unit grant that vested on December 26, 2024."}],"balance_after":527803,"source":{"system":"sec-edgar","filing":"0001580808-24-000138","document":"wk-form4_1735607684.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080824000138/wk-form4_1735607684.xml","form_type":"4"}},{"id":1320284,"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":"2024-12-31T01:14:51.000Z","date":"2024-12-26","kind":"exercise","planned":false,"acquired":true,"shares":99411,"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 January 31, 2024, 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 30, 2024 and  January 30, 2028. The first achievement date occurred on December 13, 2024, as certified by the compensation committee of ATEN, resulting in 99,411 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 December 26, 2024 and an additional one-fourth (1/4) on each of the first and second anniversaries of December 13, 2024, subject to continued employment. These shares are reflected on Table I."}],"balance_after":552993,"source":{"system":"sec-edgar","filing":"0001580808-24-000138","document":"wk-form4_1735607684.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080824000138/wk-form4_1735607684.xml","form_type":"4"}},{"id":1437689,"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":"2024-08-08T20:48:54.000Z","date":"2024-08-06","kind":"tax_withholding","planned":true,"acquired":false,"shares":21116,"price":12.42,"value":262260.72,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares withheld, on a non-discretionary basis, for tax purposes related to December 12, 2019 performance restricted stock unit grant that vested on August 5, 2024."}],"balance_after":453582,"source":{"system":"sec-edgar","filing":"0001580808-24-000108","document":"wk-form4_1723150126.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080824000108/wk-form4_1723150126.xml","form_type":"4"}},{"id":1576275,"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":"2024-03-14T20:47:02.000Z","date":"2024-03-12","kind":"tax_withholding","planned":true,"acquired":false,"shares":21116,"price":14.85,"value":313572.6,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares withheld, on a non-discretionary basis, for tax purposes related to December 12, 2019 restricted stock unit grant that vested on March 12, 2024."}],"balance_after":474698,"source":{"system":"sec-edgar","filing":"0001580808-24-000061","document":"wk-form4_1710449210.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080824000061/wk-form4_1710449210.xml","form_type":"4"}},{"id":1588630,"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":"2024-03-07T23:58:42.000Z","date":"2024-03-05","kind":"sale","planned":true,"acquired":false,"shares":60606,"price":13.27,"value":804241.62,"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, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This is the weighted average price of the shares sold, which ranged from $13.14 to $13.56 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":495814,"source":{"system":"sec-edgar","filing":"0001580808-24-000058","document":"wk-form4_1709855913.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080824000058/wk-form4_1709855913.xml","form_type":"4"}},{"id":1656501,"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":"2024-02-06T22:45:39.000Z","date":"2024-02-05","kind":"sale","planned":true,"acquired":false,"shares":8679,"price":13.06,"value":113347.74,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the number of shares automatically sold, on a non-discretionary basis, to cover tax withholding obligations in connection with the vesting of restricted stock units."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"This is the weighted average price of the shares sold, which ranged from $13.02 to $13.06 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":556420,"source":{"system":"sec-edgar","filing":"0001580808-24-000041","document":"wk-form4_1707259527.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080824000041/wk-form4_1707259527.xml","form_type":"4"}},{"id":1656500,"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":"2024-02-06T22:45:39.000Z","date":"2024-02-02","kind":"sale","planned":true,"acquired":false,"shares":18195,"price":13.21,"value":240355.95,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the number of shares automatically sold, on a non-discretionary basis, to cover tax withholding obligations in connection with the vesting of restricted stock units."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This is the weighted average price of the shares sold, which ranged from $13.19 to $13.21 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":565099,"source":{"system":"sec-edgar","filing":"0001580808-24-000041","document":"wk-form4_1707259527.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080824000041/wk-form4_1707259527.xml","form_type":"4"}},{"id":1656499,"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":"2024-02-06T22:45:39.000Z","date":"2024-02-02","kind":"sale","planned":true,"acquired":false,"shares":10762,"price":13.21,"value":142166.02,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the number of shares automatically sold, on a non-discretionary basis, to cover tax withholding obligations in connection with the vesting of restricted stock units."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This is the weighted average price of the shares sold, which ranged from $13.19 to $13.21 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":583294,"source":{"system":"sec-edgar","filing":"0001580808-24-000041","document":"wk-form4_1707259527.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080824000041/wk-form4_1707259527.xml","form_type":"4"}},{"id":1664869,"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":"2024-01-31T21:13:28.000Z","date":"2024-01-30","kind":"grant","planned":true,"acquired":true,"shares":198821,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"Each share is represented by a Performance-based Restricted Stock Unit (\"PSU\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"Grant of 198,821 Performance-Based Restricted Stock Units, 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 period between January 30, 2024 and January 30, 2028 (each, a \"Performance Milestone\"). Upon achievement of a Performance Milestone, vesting is subject to continued employment with the Company through the applicable vesting date, with one-half (1/2) vesting within thirty (30) days of achievement of the Performance Milestone and an additional one-fourth (1/4) vesting on each of the first and second anniversaries of the date of achievement of the corresponding Performance Milestone."}],"balance_after":198821,"derivative":{"expiration_date":"2028-01-30","underlying":"Common Stock","underlying_shares":198821},"source":{"system":"sec-edgar","filing":"0001580808-24-000018","document":"wk-form4_1706735588.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080824000018/wk-form4_1706735588.xml","form_type":"4"}},{"id":1664868,"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":"2024-01-31T21:13:28.000Z","date":"2024-01-30","kind":"grant","planned":true,"acquired":true,"shares":132549,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Each share is represented by a Restricted Stock Unit (\"RSU\"). 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These shares are reflected on Table I."}],"balance_after":649577,"source":{"system":"sec-edgar","filing":"0001580808-21-000149","document":"wf-form4_163165869347509.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080821000149/wf-form4_163165869347509.xml","form_type":"4"}},{"id":2583118,"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":"2021-09-01T21:25:37.000Z","date":"2021-08-31","kind":"sale","acquired":false,"shares":4597,"price":14,"value":64358.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the number of shares automatically sold, on a non-discretionary basis, to cover tax withholding obligations in connection with the vesting of restricted stock units."}],"balance_after":609989,"source":{"system":"sec-edgar","filing":"0001580808-21-000141","document":"wf-form4_163053152043845.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080821000141/wf-form4_163053152043845.xml","form_type":"4"}},{"id":2594502,"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":"2021-08-20T23:42:29.000Z","date":"2021-08-19","kind":"exercise","acquired":false,"shares":39587,"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 4, 2021, 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) calendar day trading period between February 2, 2021 and February 2, 2025. The second milestone achievement date occurred on August 17, 2021, as certified by the compensation committee of ATEN on August 19, 2021, resulting in 39,587 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 August 30, 2021 and an additional one-third (1/3) on each of the first and second anniversaries of August 17, 2021, 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 4, 2021, 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) calendar day trading period between February 2, 2021 and February 2, 2025. The second milestone achievement date occurred on August 17, 2021, as certified by the compensation committee of ATEN on August 19, 2021, resulting in 39,587 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 August 30, 2021 and an additional one-third (1/3) on each of the first and second anniversaries of August 17, 2021, subject to continued employment. These shares are reflected on Table I."}],"balance_after":39588,"derivative":{"expiration_date":"2025-02-02","underlying":"Common Stock","underlying_shares":39587},"source":{"system":"sec-edgar","filing":"0001580808-21-000130","document":"wf-form4_162950293026085.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080821000130/wf-form4_162950293026085.xml","form_type":"4"}},{"id":2594501,"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":"2021-08-20T23:42:29.000Z","date":"2021-08-19","kind":"exercise","acquired":true,"shares":39587,"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 4, 2021, 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) calendar day trading period between February 2, 2021 and February 2, 2025. The second milestone achievement date occurred on August 17, 2021, as certified by the compensation committee of ATEN on August 19, 2021, resulting in 39,587 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 August 30, 2021 and an additional one-third (1/3) on each of the first and second anniversaries of August 17, 2021, subject to continued employment. These shares are reflected on Table I."}],"balance_after":614586,"source":{"system":"sec-edgar","filing":"0001580808-21-000130","document":"wf-form4_162950293026085.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080821000130/wf-form4_162950293026085.xml","form_type":"4"}},{"id":2605014,"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":"2021-08-12T20:04:37.000Z","date":"2021-08-10","kind":"exercise","acquired":false,"shares":125000,"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 December 16, 2019, 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 December 12, 2019 and December12, 2023. The last achievement date occurred on August 5, 2021, as certified by the compensation committee of ATEN on August 10, 2021, resulting in 125,000 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 the first, second and third anniversaries of achievement of the milestone, 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 December 16, 2019, 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 December 12, 2019 and December12, 2023. The last achievement date occurred on August 5, 2021, as certified by the compensation committee of ATEN on August 10, 2021, resulting in 125,000 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 the first, second and third anniversaries of achievement of the milestone, subject to continued employment. These shares are reflected on Table I."}],"balance_after":0,"derivative":{"expiration_date":"2023-12-12","underlying":"Common Stock","underlying_shares":125000},"source":{"system":"sec-edgar","filing":"0001580808-21-000123","document":"wf-form4_162879866416137.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080821000123/wf-form4_162879866416137.xml","form_type":"4"}},{"id":2605013,"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":"2021-08-12T20:04:37.000Z","date":"2021-08-02","kind":"exercise","acquired":false,"shares":39587,"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 4, 2021, 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 2, 2021 and February 2, 2025. The achievement of the first milestone occurred on July 30, 2021, as certified by the compensation committee August 2, 2021, resulting in 39,587 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 August 9, 2021 and an additional one-third (1/3) on each of the first and second anniversaries of July 30, 2021, 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 4, 2021, 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 2, 2021 and February 2, 2025. The achievement of the first milestone occurred on July 30, 2021, as certified by the compensation committee August 2, 2021, resulting in 39,587 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 August 9, 2021 and an additional one-third (1/3) on each of the first and second anniversaries of July 30, 2021, subject to continued employment. 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These shares are reflected on Table I."}],"balance_after":579596,"source":{"system":"sec-edgar","filing":"0001580808-21-000123","document":"wf-form4_162879866416137.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080821000123/wf-form4_162879866416137.xml","form_type":"4"}},{"id":2605010,"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":"2021-08-12T20:04:37.000Z","date":"2021-08-02","kind":"exercise","acquired":true,"shares":39587,"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 4, 2021, 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 2, 2021 and February 2, 2025. 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The second achievement date occurred on March 12, 2021, as certified by the compensation committee of ATEN on March 23, 2021, resulting in 125,000 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 on the first, second and third anniversaries of achievement of the milestone, 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 December 16, 2019, 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 December 12, 2019 and December 12, 2023. The second achievement date occurred on March 12, 2021, as certified by the compensation committee of ATEN on March 23, 2021, resulting in 125,000 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 on the first, second and third anniversaries of achievement of the milestone, subject to continued employment. 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The second achievement date occurred on March 12, 2021, as certified by the compensation committee of ATEN on March 23, 2021, resulting in 125,000 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 on the first, second and third anniversaries of achievement of the milestone, subject to continued employment. These shares are reflected on Table I."}],"balance_after":415009,"source":{"system":"sec-edgar","filing":"0001580808-21-000054","document":"wf-form4_161670900817194.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1570462/000158080821000054/wf-form4_161670900817194.xml","form_type":"4"}}],"next_cursor":"2021-03-25T21:50:23.000000Z,2771667"}