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The remaining 843 earned PSUs from this award, previously reported on Table II, are included in the Table I balance, subject to time-based vesting through May 15, 2028. Each PSU represents the right to receive one share of common stock."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Granted on May 15, 2025, represents 415 performance stock units (\"PSUs\") vested on the first anniversary of the grant date. The remaining 843 earned PSUs from this award, previously reported on Table II, are included in the Table I balance, subject to time-based vesting through May 15, 2028. Each PSU represents the right to receive one share of common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Granted on May 15, 2025, represents 415 performance stock units (\"PSUs\") vested on the first anniversary of the grant date. The remaining 843 earned PSUs from this award, previously reported on Table II, are included in the Table I balance, subject to time-based vesting through May 15, 2028. Each PSU represents the right to receive one share of common stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Granted on May 15, 2025, represents 415 performance stock units (\"PSUs\") vested on the first anniversary of the grant date. The remaining 843 earned PSUs from this award, previously reported on Table II, are included in the Table I balance, subject to time-based vesting through May 15, 2028. Each PSU represents the right to receive one share of common stock."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Granted on May 15, 2025, represents 415 performance stock units (\"PSUs\") vested on the first anniversary of the grant date. The remaining 843 earned PSUs from this award, previously reported on Table II, are included in the Table I balance, subject to time-based vesting through May 15, 2028. Each PSU represents the right to receive one share of common stock."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":415},"source":{"system":"sec-edgar","filing":"0002110638-26-000008","document":"wk-form4_1779225601.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000211063826000008/wk-form4_1779225601.xml","form_type":"4"}},{"id":772774,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":21775,"kind":"person","name":"Abrahamsen Danielle Nicole","position":1,"cik":"0002110638","reported_name":"Abrahamsen Danielle Nicole","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Accounting Officer"}}],"security":"Common Stock","published_at":"2026-05-19T21:20:03.000Z","date":"2026-05-18","kind":"sale","planned":true,"acquired":false,"shares":516,"price":104.5,"value":53922.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F4","text":"The sale reported in this Form 4 was effected pursuant to an existing Rule 10b5-1 trading plan adopted by the Reporting Person on February 17, 2026."}],"balance_after":14646,"source":{"system":"sec-edgar","filing":"0002110638-26-000008","document":"wk-form4_1779225601.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000211063826000008/wk-form4_1779225601.xml","form_type":"4"}},{"id":772773,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":21775,"kind":"person","name":"Abrahamsen Danielle Nicole","position":1,"cik":"0002110638","reported_name":"Abrahamsen Danielle Nicole","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Accounting Officer"}}],"security":"Common Stock","published_at":"2026-05-19T21:20:03.000Z","date":"2026-05-18","kind":"sale","planned":true,"acquired":false,"shares":409,"price":104.54,"value":42756.86,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F3","text":"Represents shares automatically sold solely to satisfy tax withholding obligations of the Reporting Person on vesting of restricted stock. Proceeds from the sale were submitted to the Internal Revenue Service."}],"balance_after":15162,"source":{"system":"sec-edgar","filing":"0002110638-26-000008","document":"wk-form4_1779225601.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000211063826000008/wk-form4_1779225601.xml","form_type":"4"}},{"id":772772,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":21775,"kind":"person","name":"Abrahamsen Danielle Nicole","position":1,"cik":"0002110638","reported_name":"Abrahamsen Danielle Nicole","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Accounting Officer"}}],"security":"Common Stock","published_at":"2026-05-19T21:20:03.000Z","date":"2026-05-15","kind":"grant","planned":true,"acquired":true,"shares":3897,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F2","text":"The common stock is being granted as restricted stock units and is subject to a 3-year vesting schedule, as follows: 33% will vest on the first anniversary of the grant date and 8.375% will vest at the end of each successive three-month period thereafter."}],"balance_after":15571,"source":{"system":"sec-edgar","filing":"0002110638-26-000008","document":"wk-form4_1779225601.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000211063826000008/wk-form4_1779225601.xml","form_type":"4"}},{"id":772771,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":21775,"kind":"person","name":"Abrahamsen Danielle Nicole","position":1,"cik":"0002110638","reported_name":"Abrahamsen Danielle Nicole","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Accounting Officer"}}],"security":"Common Stock","published_at":"2026-05-19T21:20:03.000Z","date":"2026-05-15","kind":"exercise","planned":true,"acquired":true,"shares":415,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"Granted on May 15, 2025, represents 415 performance stock units (\"PSUs\") vested on the first anniversary of the grant date. The remaining 843 earned PSUs from this award, previously reported on Table II, are included in the Table I balance, subject to time-based vesting through May 15, 2028. Each PSU represents the right to receive one share of common stock."}],"balance_after":11674,"source":{"system":"sec-edgar","filing":"0002110638-26-000008","document":"wk-form4_1779225601.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000211063826000008/wk-form4_1779225601.xml","form_type":"4"}},{"id":772770,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":21776,"kind":"person","name":"Merrill Gary","position":1,"cik":"0001560814","reported_name":"Merrill Gary","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Performance Stock Units","published_at":"2026-05-19T21:17:30.000Z","date":"2026-05-15","kind":"exercise","planned":false,"acquired":false,"shares":0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Granted on May 15, 2025, represents 278 performance stock units (\"PSUs\") vested on the first anniversary of the grant date. The remaining 563 earned PSUs from this award, previously reported on Table II, are included in the Table I balance, subject to time-based vesting through May 15, 2028. Each PSU represents the right to receive one share of common stock."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Granted on May 15, 2025, represents 278 performance stock units (\"PSUs\") vested on the first anniversary of the grant date. The remaining 563 earned PSUs from this award, previously reported on Table II, are included in the Table I balance, subject to time-based vesting through May 15, 2028. Each PSU represents the right to receive one share of common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Granted on May 15, 2025, represents 278 performance stock units (\"PSUs\") vested on the first anniversary of the grant date. The remaining 563 earned PSUs from this award, previously reported on Table II, are included in the Table I balance, subject to time-based vesting through May 15, 2028. Each PSU represents the right to receive one share of common stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Granted on May 15, 2025, represents 278 performance stock units (\"PSUs\") vested on the first anniversary of the grant date. The remaining 563 earned PSUs from this award, previously reported on Table II, are included in the Table I balance, subject to time-based vesting through May 15, 2028. Each PSU represents the right to receive one share of common stock."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Granted on May 15, 2025, represents 278 performance stock units (\"PSUs\") vested on the first anniversary of the grant date. The remaining 563 earned PSUs from this award, previously reported on Table II, are included in the Table I balance, subject to time-based vesting through May 15, 2028. Each PSU represents the right to receive one share of common stock."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":278},"source":{"system":"sec-edgar","filing":"0001560814-26-000008","document":"wk-form4_1779225447.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000156081426000008/wk-form4_1779225447.xml","form_type":"4"}},{"id":772769,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":21776,"kind":"person","name":"Merrill Gary","position":1,"cik":"0001560814","reported_name":"Merrill Gary","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2026-05-19T21:17:30.000Z","date":"2026-05-18","kind":"sale","planned":false,"acquired":false,"shares":3098,"price":104.54,"value":323864.92,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F4","text":"Represents shares automatically sold solely to satisfy tax withholding obligations of the Reporting Person on vesting of restricted stock. Proceeds from the sale were submitted to the Internal Revenue Service."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"The amount of securities beneficially owned includes (a) shares of Common Stock owned outright by the Reporting Person and (b) shares underlying earned PSUs and restricted stock units (\"RSUs\") that remain subject to time-based vesting criteria. The amount excludes the following shares mistakenly included in prior Forms 4: (i) 4,278 shares attributable to a total shareholder return (\"TSR\") PSU award granted on May 15, 2023, (ii) 8,200 shares attributable to a TSR PSU award granted on May 14, 2024, (iii) 7,649 shares attributable to a TSR PSU award granted on May 15, 2025, and (iv) 33 shares to correct a historical balance discrepancy. Going forward, PSUs will be reported on Form 4 in Table I once earned."}],"balance_after":77067,"source":{"system":"sec-edgar","filing":"0001560814-26-000008","document":"wk-form4_1779225447.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000156081426000008/wk-form4_1779225447.xml","form_type":"4"}},{"id":772768,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":21776,"kind":"person","name":"Merrill Gary","position":1,"cik":"0001560814","reported_name":"Merrill Gary","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2026-05-19T21:17:30.000Z","date":"2026-05-15","kind":"grant","planned":false,"acquired":true,"shares":24357,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F3","text":"The common stock is being granted as RSUs and is subject to a 3-year vesting schedule, as follows: 33% will vest on the first anniversary of the grant date and 8.375% will vest at the end of each successive three-month period thereafter."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"The amount of securities beneficially owned includes (a) shares of Common Stock owned outright by the Reporting Person and (b) shares underlying earned PSUs and restricted stock units (\"RSUs\") that remain subject to time-based vesting criteria. The amount excludes the following shares mistakenly included in prior Forms 4: (i) 4,278 shares attributable to a total shareholder return (\"TSR\") PSU award granted on May 15, 2023, (ii) 8,200 shares attributable to a TSR PSU award granted on May 14, 2024, (iii) 7,649 shares attributable to a TSR PSU award granted on May 15, 2025, and (iv) 33 shares to correct a historical balance discrepancy. Going forward, PSUs will be reported on Form 4 in Table I once earned."}],"balance_after":80165,"source":{"system":"sec-edgar","filing":"0001560814-26-000008","document":"wk-form4_1779225447.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000156081426000008/wk-form4_1779225447.xml","form_type":"4"}},{"id":772767,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":21776,"kind":"person","name":"Merrill Gary","position":1,"cik":"0001560814","reported_name":"Merrill Gary","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2026-05-19T21:17:30.000Z","date":"2026-05-15","kind":"exercise","planned":false,"acquired":true,"shares":278,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"Granted on May 15, 2025, represents 278 performance stock units (\"PSUs\") vested on the first anniversary of the grant date. The remaining 563 earned PSUs from this award, previously reported on Table II, are included in the Table I balance, subject to time-based vesting through May 15, 2028. Each PSU represents the right to receive one share of common stock."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"The amount of securities beneficially owned includes (a) shares of Common Stock owned outright by the Reporting Person and (b) shares underlying earned PSUs and restricted stock units (\"RSUs\") that remain subject to time-based vesting criteria. The amount excludes the following shares mistakenly included in prior Forms 4: (i) 4,278 shares attributable to a total shareholder return (\"TSR\") PSU award granted on May 15, 2023, (ii) 8,200 shares attributable to a TSR PSU award granted on May 14, 2024, (iii) 7,649 shares attributable to a TSR PSU award granted on May 15, 2025, and (iv) 33 shares to correct a historical balance discrepancy. Going forward, PSUs will be reported on Form 4 in Table I once earned."}],"balance_after":55808,"source":{"system":"sec-edgar","filing":"0001560814-26-000008","document":"wk-form4_1779225447.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000156081426000008/wk-form4_1779225447.xml","form_type":"4"}},{"id":772764,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":423,"kind":"person","name":"Mirchandani Sanjay","position":1,"cik":"0001765820","reported_name":"Mirchandani Sanjay","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Performance Stock Units","published_at":"2026-05-19T21:16:50.000Z","date":"2026-05-15","kind":"exercise","planned":false,"acquired":false,"shares":0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Granted on May 15, 2025, represents 926 performance stock units (\"PSUs\") vested on the first anniversary of the grant date. The remaining 1,879 earned PSUs from this award, previously reported on Table II, are included in the Table I balance, subject to time-based vesting through May 15, 2028. Each PSU represents the right to receive one share of common stock."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Granted on May 15, 2025, represents 926 performance stock units (\"PSUs\") vested on the first anniversary of the grant date. The remaining 1,879 earned PSUs from this award, previously reported on Table II, are included in the Table I balance, subject to time-based vesting through May 15, 2028. Each PSU represents the right to receive one share of common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Granted on May 15, 2025, represents 926 performance stock units (\"PSUs\") vested on the first anniversary of the grant date. The remaining 1,879 earned PSUs from this award, previously reported on Table II, are included in the Table I balance, subject to time-based vesting through May 15, 2028. Each PSU represents the right to receive one share of common stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Granted on May 15, 2025, represents 926 performance stock units (\"PSUs\") vested on the first anniversary of the grant date. The remaining 1,879 earned PSUs from this award, previously reported on Table II, are included in the Table I balance, subject to time-based vesting through May 15, 2028. Each PSU represents the right to receive one share of common stock."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Granted on May 15, 2025, represents 926 performance stock units (\"PSUs\") vested on the first anniversary of the grant date. The remaining 1,879 earned PSUs from this award, previously reported on Table II, are included in the Table I balance, subject to time-based vesting through May 15, 2028. Each PSU represents the right to receive one share of common stock."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":926},"source":{"system":"sec-edgar","filing":"0001765820-26-000008","document":"wk-form4_1779225408.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000176582026000008/wk-form4_1779225408.xml","form_type":"4"}},{"id":772763,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":423,"kind":"person","name":"Mirchandani Sanjay","position":1,"cik":"0001765820","reported_name":"Mirchandani Sanjay","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2026-05-19T21:16:50.000Z","date":"2026-05-18","kind":"sale","planned":false,"acquired":false,"shares":8457,"price":104.54,"value":884094.78,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F4","text":"Represents shares automatically sold solely to satisfy tax withholding obligations of the Reporting Person on vesting of restricted stock. Proceeds from the sale were submitted to the Internal Revenue Service."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"The amount of securities beneficially owned includes (a) shares of Common Stock owned outright by the Reporting Person and (b) shares underlying earned PSUs and restricted stock units (\"RSUs\") that remain subject to time-based vesting criteria. The amount excludes the following shares mistakenly included in prior Forms 4: (i) 12,968 shares attributable to a total shareholder return (\"TSR\") PSU award granted on May 15, 2023, (ii) 22,778 shares attributable to a TSR PSU award granted on May 15, 2024, (iii) 25,497 shares attributable to a TSR PSU award granted on May 15, 2025, and (iv) 1,011 shares to correct a historical balance discrepancy. Going forward, PSUs will be reported on Form 4 in Table I once earned."}],"balance_after":334773,"source":{"system":"sec-edgar","filing":"0001765820-26-000008","document":"wk-form4_1779225408.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000176582026000008/wk-form4_1779225408.xml","form_type":"4"}},{"id":772762,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":423,"kind":"person","name":"Mirchandani Sanjay","position":1,"cik":"0001765820","reported_name":"Mirchandani Sanjay","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2026-05-19T21:16:50.000Z","date":"2026-05-15","kind":"grant","planned":false,"acquired":true,"shares":70150,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F3","text":"The common stock is being granted as RSUs and is subject to a 3-year vesting schedule, as follows: 33% will vest on the first anniversary of the grant date and 8.375% will vest at the end of each successive three-month period thereafter."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"The amount of securities beneficially owned includes (a) shares of Common Stock owned outright by the Reporting Person and (b) shares underlying earned PSUs and restricted stock units (\"RSUs\") that remain subject to time-based vesting criteria. The amount excludes the following shares mistakenly included in prior Forms 4: (i) 12,968 shares attributable to a total shareholder return (\"TSR\") PSU award granted on May 15, 2023, (ii) 22,778 shares attributable to a TSR PSU award granted on May 15, 2024, (iii) 25,497 shares attributable to a TSR PSU award granted on May 15, 2025, and (iv) 1,011 shares to correct a historical balance discrepancy. Going forward, PSUs will be reported on Form 4 in Table I once earned."}],"balance_after":343230,"source":{"system":"sec-edgar","filing":"0001765820-26-000008","document":"wk-form4_1779225408.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000176582026000008/wk-form4_1779225408.xml","form_type":"4"}},{"id":772761,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":423,"kind":"person","name":"Mirchandani Sanjay","position":1,"cik":"0001765820","reported_name":"Mirchandani Sanjay","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2026-05-19T21:16:50.000Z","date":"2026-05-15","kind":"exercise","planned":false,"acquired":true,"shares":926,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"Granted on May 15, 2025, represents 926 performance stock units (\"PSUs\") vested on the first anniversary of the grant date. The remaining 1,879 earned PSUs from this award, previously reported on Table II, are included in the Table I balance, subject to time-based vesting through May 15, 2028. Each PSU represents the right to receive one share of common stock."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"The amount of securities beneficially owned includes (a) shares of Common Stock owned outright by the Reporting Person and (b) shares underlying earned PSUs and restricted stock units (\"RSUs\") that remain subject to time-based vesting criteria. The amount excludes the following shares mistakenly included in prior Forms 4: (i) 12,968 shares attributable to a total shareholder return (\"TSR\") PSU award granted on May 15, 2023, (ii) 22,778 shares attributable to a TSR PSU award granted on May 15, 2024, (iii) 25,497 shares attributable to a TSR PSU award granted on May 15, 2025, and (iv) 1,011 shares to correct a historical balance discrepancy. Going forward, PSUs will be reported on Form 4 in Table I once earned."}],"balance_after":273080,"source":{"system":"sec-edgar","filing":"0001765820-26-000008","document":"wk-form4_1779225408.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000176582026000008/wk-form4_1779225408.xml","form_type":"4"}},{"id":801134,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":21775,"kind":"person","name":"Abrahamsen Danielle Nicole","position":1,"cik":"0002110638","reported_name":"Abrahamsen Danielle Nicole","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Accounting Officer"}}],"security":"Performance Stock Units","published_at":"2026-04-25T01:17:59.000Z","date":"2026-04-22","kind":"grant","planned":false,"acquired":true,"shares":1258,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Granted on May 15, 2025, represents the number of shares determined to have been earned based upon the performance criteria and that remain subject to additional time-based vesting criteria. 33% of these performance stock units (\"PSUs\") will vest on the first anniversary of the grant date and 8.375% will vest at the end of each successive three-month period thereafter. Each PSU represents the right to receive one share of common stock."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Granted on May 15, 2025, represents the number of shares determined to have been earned based upon the performance criteria and that remain subject to additional time-based vesting criteria. 33% of these performance stock units (\"PSUs\") will vest on the first anniversary of the grant date and 8.375% will vest at the end of each successive three-month period thereafter. Each PSU represents the right to receive one share of common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Granted on May 15, 2025, represents the number of shares determined to have been earned based upon the performance criteria and that remain subject to additional time-based vesting criteria. 33% of these performance stock units (\"PSUs\") will vest on the first anniversary of the grant date and 8.375% will vest at the end of each successive three-month period thereafter. Each PSU represents the right to receive one share of common stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Granted on May 15, 2025, represents the number of shares determined to have been earned based upon the performance criteria and that remain subject to additional time-based vesting criteria. 33% of these performance stock units (\"PSUs\") will vest on the first anniversary of the grant date and 8.375% will vest at the end of each successive three-month period thereafter. Each PSU represents the right to receive one share of common stock."}],"balance_after":1258,"derivative":{"underlying":"Common Stock","underlying_shares":1258},"source":{"system":"sec-edgar","filing":"0002110638-26-000006","document":"wk-form4_1777079877.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000211063826000006/wk-form4_1777079877.xml","form_type":"4"}},{"id":801133,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":21776,"kind":"person","name":"Merrill Gary","position":1,"cik":"0001560814","reported_name":"Merrill Gary","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Performance Stock Units","published_at":"2026-04-25T01:17:55.000Z","date":"2026-04-22","kind":"grant","planned":false,"acquired":true,"shares":841,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Granted on May 15, 2025, represents the number of shares determined to have been earned based upon the performance criteria in excess of the target amount previously reported in Table I (7,649 shares) and that remain subject to additional time-based vesting criteria. 33% of these performance stock units (\"PSUs\") will vest on the first anniversary of the grant date and 8.375% will vest at the end of each successive three-month period thereafter. Each PSU represents the right to receive one share of common stock."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Granted on May 15, 2025, represents the number of shares determined to have been earned based upon the performance criteria in excess of the target amount previously reported in Table I (7,649 shares) and that remain subject to additional time-based vesting criteria. 33% of these performance stock units (\"PSUs\") will vest on the first anniversary of the grant date and 8.375% will vest at the end of each successive three-month period thereafter. Each PSU represents the right to receive one share of common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Granted on May 15, 2025, represents the number of shares determined to have been earned based upon the performance criteria in excess of the target amount previously reported in Table I (7,649 shares) and that remain subject to additional time-based vesting criteria. 33% of these performance stock units (\"PSUs\") will vest on the first anniversary of the grant date and 8.375% will vest at the end of each successive three-month period thereafter. Each PSU represents the right to receive one share of common stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Granted on May 15, 2025, represents the number of shares determined to have been earned based upon the performance criteria in excess of the target amount previously reported in Table I (7,649 shares) and that remain subject to additional time-based vesting criteria. 33% of these performance stock units (\"PSUs\") will vest on the first anniversary of the grant date and 8.375% will vest at the end of each successive three-month period thereafter. Each PSU represents the right to receive one share of common stock."}],"balance_after":841,"derivative":{"underlying":"Common Stock","underlying_shares":841},"source":{"system":"sec-edgar","filing":"0001560814-26-000006","document":"wk-form4_1777079872.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000156081426000006/wk-form4_1777079872.xml","form_type":"4"}},{"id":801132,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":423,"kind":"person","name":"Mirchandani Sanjay","position":1,"cik":"0001765820","reported_name":"Mirchandani Sanjay","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Performance Stock Units","published_at":"2026-04-25T01:17:50.000Z","date":"2026-04-22","kind":"grant","planned":false,"acquired":true,"shares":2805,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Granted on May 15, 2025, represents the number of shares determined to have been earned based upon the performance criteria in excess of the target amount previously reported in Table I (25,497 shares) and that remain subject to additional time-based vesting criteria. 33% of these performance stock units (\"PSUs\") will vest on the first anniversary of the grant date and 8.375% will vest at the end of each successive three-month period thereafter. Each PSU represents the right to receive one share of common stock."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Granted on May 15, 2025, represents the number of shares determined to have been earned based upon the performance criteria in excess of the target amount previously reported in Table I (25,497 shares) and that remain subject to additional time-based vesting criteria. 33% of these performance stock units (\"PSUs\") will vest on the first anniversary of the grant date and 8.375% will vest at the end of each successive three-month period thereafter. Each PSU represents the right to receive one share of common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Granted on May 15, 2025, represents the number of shares determined to have been earned based upon the performance criteria in excess of the target amount previously reported in Table I (25,497 shares) and that remain subject to additional time-based vesting criteria. 33% of these performance stock units (\"PSUs\") will vest on the first anniversary of the grant date and 8.375% will vest at the end of each successive three-month period thereafter. Each PSU represents the right to receive one share of common stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Granted on May 15, 2025, represents the number of shares determined to have been earned based upon the performance criteria in excess of the target amount previously reported in Table I (25,497 shares) and that remain subject to additional time-based vesting criteria. 33% of these performance stock units (\"PSUs\") will vest on the first anniversary of the grant date and 8.375% will vest at the end of each successive three-month period thereafter. Each PSU represents the right to receive one share of common stock."}],"balance_after":2805,"derivative":{"underlying":"Common Stock","underlying_shares":2805},"source":{"system":"sec-edgar","filing":"0001765820-26-000006","document":"wk-form4_1777079868.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000176582026000006/wk-form4_1777079868.xml","form_type":"4"}},{"id":808295,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":24257,"kind":"person","name":"Haydon William Geoffrey","position":1,"cik":"0002093857","reported_name":"Haydon William Geoffrey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President of Cust & Field Ops"}}],"security":"Common Stock","published_at":"2026-04-15T20:01:37.000Z","date":"2026-04-13","kind":"grant","planned":false,"acquired":true,"shares":64543,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"The common stock is being granted as restricted stock units and is subject to a 3-year vesting schedule, as follows: 33% will vest on the first anniversary of the grant date and 8.375% will vest at the end of each successive three-month period thereafter."}],"balance_after":65570,"source":{"system":"sec-edgar","filing":"0002093857-26-000002","document":"wk-form4_1776283295.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000209385726000002/wk-form4_1776283295.xml","form_type":"4"}},{"id":808294,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":21776,"kind":"person","name":"Merrill Gary","position":1,"cik":"0001560814","reported_name":"Merrill Gary","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2026-04-15T20:01:33.000Z","date":"2026-04-13","kind":"grant","planned":false,"acquired":true,"shares":12294,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"The common stock is being granted as restricted stock units and is subject to a 3-year vesting schedule, as follows: 33% will vest on the first anniversary of the grant date and 8.375% will vest at the end of each successive three-month period thereafter."}],"balance_after":75127,"source":{"system":"sec-edgar","filing":"0001560814-26-000004","document":"wk-form4_1776283290.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000156081426000004/wk-form4_1776283290.xml","form_type":"4"}},{"id":835488,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":423,"kind":"person","name":"Mirchandani Sanjay","position":1,"cik":"0001765820","reported_name":"Mirchandani Sanjay","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2026-03-18T20:10:47.000Z","date":"2026-03-17","kind":"sale","planned":true,"acquired":false,"shares":10052,"price":80.09,"value":805064.68,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to an existing Rule 10b5-1 trading plan adopted by the reporting person on December 13, 2025."}],"balance_after":332529,"source":{"system":"sec-edgar","filing":"0001765820-26-000004","document":"wk-form4_1773864627.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000176582026000004/wk-form4_1773864627.xml","form_type":"4"}},{"id":835487,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":423,"kind":"person","name":"Mirchandani Sanjay","position":1,"cik":"0001765820","reported_name":"Mirchandani Sanjay","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2026-03-18T20:10:47.000Z","date":"2026-03-16","kind":"sale","planned":true,"acquired":false,"shares":10338,"price":78.96,"value":816288.48,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to an existing Rule 10b5-1 trading plan adopted by the reporting person on December 13, 2025."}],"balance_after":342581,"source":{"system":"sec-edgar","filing":"0001765820-26-000004","document":"wk-form4_1773864627.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000176582026000004/wk-form4_1773864627.xml","form_type":"4"}},{"id":891110,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":21776,"kind":"person","name":"Merrill Gary","position":1,"cik":"0001560814","reported_name":"Merrill Gary","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Commercial Officer"}}],"security":"Common Stock","published_at":"2026-02-20T21:40:50.000Z","date":"2026-02-19","kind":"sale","planned":true,"acquired":false,"shares":1892,"price":91.28,"value":172701.76,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F2","text":"The sale reported in this Form 4 was effected pursuant to an existing Rule 10b5-1 trading plan adopted by the reporting person on November 20, 2024, as amended on June 13, 2025."}],"balance_after":62833,"source":{"system":"sec-edgar","filing":"0001560814-26-000002","document":"wk-form4_1771623646.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000156081426000002/wk-form4_1771623646.xml","form_type":"4"}},{"id":891109,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":21776,"kind":"person","name":"Merrill Gary","position":1,"cik":"0001560814","reported_name":"Merrill Gary","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Commercial Officer"}}],"security":"Common Stock","published_at":"2026-02-20T21:40:50.000Z","date":"2026-02-18","kind":"sale","planned":true,"acquired":false,"shares":2593,"price":90.28,"value":234096.04,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"Represents shares automatically sold solely to satisfy tax withholding obligations of reporting person on vesting of restricted and performance stock. Proceeds from the sale were submitted to the Internal Revenue Service."}],"balance_after":64725,"source":{"system":"sec-edgar","filing":"0001560814-26-000002","document":"wk-form4_1771623646.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000156081426000002/wk-form4_1771623646.xml","form_type":"4"}},{"id":891102,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":423,"kind":"person","name":"Mirchandani Sanjay","position":1,"cik":"0001765820","reported_name":"Mirchandani Sanjay","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2026-02-20T21:40:27.000Z","date":"2026-02-18","kind":"sale","planned":false,"acquired":false,"shares":6480,"price":90.28,"value":585014.4,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"Represents shares automatically sold solely to satisfy tax withholding obligations of reporting person on vesting of restricted and performance stock. Proceeds from the sale were submitted to the Internal Revenue Service."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes shares purchased under the Commvault Employee Stock Purchase Plan on February 13, 2026."}],"balance_after":352919,"source":{"system":"sec-edgar","filing":"0001765820-26-000002","document":"wk-form4_1771623623.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000176582026000002/wk-form4_1771623623.xml","form_type":"4"}},{"id":893917,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":21775,"kind":"person","name":"Abrahamsen Danielle Nicole","position":1,"cik":"0002110638","reported_name":"Abrahamsen Danielle Nicole","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Accounting Officer"}}],"security":"Common Stock","published_at":"2026-02-19T21:01:57.000Z","date":"2026-02-18","kind":"sale","planned":false,"acquired":false,"shares":218,"price":90.28,"value":19681.04,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F3","text":"Represents shares automatically sold solely to satisfy tax withholding obligations of reporting person on vesting of restricted and performance stock. Proceeds from the sale were submitted to the Internal Revenue Service."}],"balance_after":10416,"source":{"system":"sec-edgar","filing":"0002110638-26-000004","document":"wk-form4_1771534914.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000211063826000004/wk-form4_1771534914.xml","form_type":"4"}},{"id":893916,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":21775,"kind":"person","name":"Abrahamsen Danielle Nicole","position":1,"cik":"0002110638","reported_name":"Abrahamsen Danielle Nicole","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Accounting Officer"}}],"security":"Common Stock","published_at":"2026-02-19T21:01:57.000Z","date":"2026-02-17","kind":"grant","planned":false,"acquired":true,"shares":4564,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"The common stock is being granted as restricted stock units and is subject to a 3-year vesting schedule, as follows: 33% will vest on the first anniversary of the grant date and 8.375% will vest at the\nend of each successive three-month period thereafter."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes shares purchased under the Commvault Employee Stock Purchase Plan on February 13, 2026."}],"balance_after":10634,"source":{"system":"sec-edgar","filing":"0002110638-26-000004","document":"wk-form4_1771534914.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000211063826000004/wk-form4_1771534914.xml","form_type":"4"}},{"id":992810,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":21776,"kind":"person","name":"Merrill Gary","position":1,"cik":"0001560814","reported_name":"Merrill Gary","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Commercial Officer"}}],"security":"Common Stock","published_at":"2025-11-20T21:27:23.000Z","date":"2025-11-19","kind":"sale","planned":true,"acquired":false,"shares":1845,"price":122.4,"value":225828.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F3","text":"The sale reported in this Form 4 was effected pursuant to an existing Rule 10b5-1 trading plan adopted by the reporting person on November 20, 2024, as amended on June 13, 2025."}],"balance_after":67318,"source":{"system":"sec-edgar","filing":"0001560814-25-000011","document":"wk-form4_1763674040.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000156081425000011/wk-form4_1763674040.xml","form_type":"4"}},{"id":992809,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":21776,"kind":"person","name":"Merrill Gary","position":1,"cik":"0001560814","reported_name":"Merrill Gary","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Commercial Officer"}}],"security":"Common Stock","published_at":"2025-11-20T21:27:23.000Z","date":"2025-11-18","kind":"sale","planned":true,"acquired":false,"shares":2674,"price":123.58,"value":330452.92,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"Represents shares automatically sold solely to satisfy tax withholding obligations of reporting person on vesting of restricted and performance stock. Proceeds from the sale were submitted to the Internal Revenue Service."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $123.58 to $124.33, inclusive. Full information regarding the number of shares sold at each separate price will be provided by the reporting person upon request to the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer."}],"balance_after":69163,"source":{"system":"sec-edgar","filing":"0001560814-25-000011","document":"wk-form4_1763674040.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000156081425000011/wk-form4_1763674040.xml","form_type":"4"}},{"id":992808,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":70481,"kind":"person","name":"DiRico Jennifer Leigh","position":1,"cik":"0002035847","reported_name":"DiRico Jennifer Leigh","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2025-11-20T21:27:16.000Z","date":"2025-11-18","kind":"sale","planned":false,"acquired":false,"shares":830,"price":123.58,"value":102571.4,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"Represents shares automatically sold solely to satisfy tax withholding obligations of reporting person on vesting of restricted and performance stock. Proceeds from the sale were submitted to the Internal Revenue Service."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $123.58 to $124.29, inclusive. Full information regarding the number of shares sold at each separate price will be provided by the reporting person upon request to the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer."}],"balance_after":44313,"source":{"system":"sec-edgar","filing":"0002035847-25-000012","document":"wk-form4_1763674033.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000203584725000012/wk-form4_1763674033.xml","form_type":"4"}},{"id":992807,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":423,"kind":"person","name":"Mirchandani Sanjay","position":1,"cik":"0001765820","reported_name":"Mirchandani Sanjay","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2025-11-20T21:27:00.000Z","date":"2025-11-19","kind":"sale","planned":true,"acquired":false,"shares":108,"price":122.59,"value":13239.72,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F3","text":"The sale reported in this Form 4 was effected pursuant to an existing Rule 10b5-1 trading plan adopted by the reporting person on November 18, 2024."}],"balance_after":359260,"source":{"system":"sec-edgar","filing":"0001765820-25-000011","document":"wk-form4_1763674017.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000176582025000011/wk-form4_1763674017.xml","form_type":"4"}},{"id":992806,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":423,"kind":"person","name":"Mirchandani Sanjay","position":1,"cik":"0001765820","reported_name":"Mirchandani Sanjay","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2025-11-20T21:27:00.000Z","date":"2025-11-19","kind":"sale","planned":true,"acquired":false,"shares":6604,"price":121.81,"value":804433.24,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F3","text":"The sale reported in this Form 4 was effected pursuant to an existing Rule 10b5-1 trading plan adopted by the reporting person on November 18, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F8","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $121.45 to $122.40, inclusive. Full information regarding the number of shares sold at each separate price will be provided by the reporting person upon request to the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer."}],"balance_after":359368,"source":{"system":"sec-edgar","filing":"0001765820-25-000011","document":"wk-form4_1763674017.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000176582025000011/wk-form4_1763674017.xml","form_type":"4"}},{"id":992805,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":423,"kind":"person","name":"Mirchandani Sanjay","position":1,"cik":"0001765820","reported_name":"Mirchandani Sanjay","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2025-11-20T21:27:00.000Z","date":"2025-11-19","kind":"sale","planned":true,"acquired":false,"shares":3552,"price":120.99,"value":429756.48,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F3","text":"The sale reported in this Form 4 was effected pursuant to an existing Rule 10b5-1 trading plan adopted by the reporting person on November 18, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $120.44 to $121.37, inclusive. Full information regarding the number of shares sold at each separate price will be provided by the reporting person upon request to the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer."}],"balance_after":365972,"source":{"system":"sec-edgar","filing":"0001765820-25-000011","document":"wk-form4_1763674017.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000176582025000011/wk-form4_1763674017.xml","form_type":"4"}},{"id":992804,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":423,"kind":"person","name":"Mirchandani Sanjay","position":1,"cik":"0001765820","reported_name":"Mirchandani Sanjay","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2025-11-20T21:27:00.000Z","date":"2025-11-19","kind":"sale","planned":true,"acquired":false,"shares":2845,"price":119.75,"value":340688.75,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F3","text":"The sale reported in this Form 4 was effected pursuant to an existing Rule 10b5-1 trading plan adopted by the reporting person on November 18, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $119.31 to $120.29, inclusive. Full information regarding the number of shares sold at each separate price will be provided by the reporting person upon request to the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer."}],"balance_after":369524,"source":{"system":"sec-edgar","filing":"0001765820-25-000011","document":"wk-form4_1763674017.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000176582025000011/wk-form4_1763674017.xml","form_type":"4"}},{"id":992803,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":423,"kind":"person","name":"Mirchandani Sanjay","position":1,"cik":"0001765820","reported_name":"Mirchandani Sanjay","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2025-11-20T21:27:00.000Z","date":"2025-11-18","kind":"sale","planned":true,"acquired":false,"shares":100,"price":125.81,"value":12581.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F3","text":"The sale reported in this Form 4 was effected pursuant to an existing Rule 10b5-1 trading plan adopted by the reporting person on November 18, 2024."}],"balance_after":372369,"source":{"system":"sec-edgar","filing":"0001765820-25-000011","document":"wk-form4_1763674017.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000176582025000011/wk-form4_1763674017.xml","form_type":"4"}},{"id":992802,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":423,"kind":"person","name":"Mirchandani Sanjay","position":1,"cik":"0001765820","reported_name":"Mirchandani Sanjay","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2025-11-20T21:27:00.000Z","date":"2025-11-18","kind":"sale","planned":true,"acquired":false,"shares":1939,"price":124.64,"value":241676.96,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F3","text":"The sale reported in this Form 4 was effected pursuant to an existing Rule 10b5-1 trading plan adopted by the reporting person on November 18, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $124.07 to $124.99, inclusive. Full information regarding the number of shares sold at each separate price will be provided by the reporting person upon request to the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer."}],"balance_after":372469,"source":{"system":"sec-edgar","filing":"0001765820-25-000011","document":"wk-form4_1763674017.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000176582025000011/wk-form4_1763674017.xml","form_type":"4"}},{"id":992801,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":423,"kind":"person","name":"Mirchandani Sanjay","position":1,"cik":"0001765820","reported_name":"Mirchandani Sanjay","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2025-11-20T21:27:00.000Z","date":"2025-11-18","kind":"sale","planned":true,"acquired":false,"shares":5794,"price":123.37,"value":714805.78,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F3","text":"The sale reported in this Form 4 was effected pursuant to an existing Rule 10b5-1 trading plan adopted by the reporting person on November 18, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $122.89 to $123.86, inclusive. Full information regarding the number of shares sold at each separate price will be provided by the reporting person upon request to the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer."}],"balance_after":374408,"source":{"system":"sec-edgar","filing":"0001765820-25-000011","document":"wk-form4_1763674017.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000176582025000011/wk-form4_1763674017.xml","form_type":"4"}},{"id":992800,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":423,"kind":"person","name":"Mirchandani Sanjay","position":1,"cik":"0001765820","reported_name":"Mirchandani Sanjay","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2025-11-20T21:27:00.000Z","date":"2025-11-18","kind":"sale","planned":true,"acquired":false,"shares":6820,"price":123.58,"value":842815.6,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"Represents shares automatically sold solely to satisfy tax withholding obligations of reporting person on vesting of restricted and performance stock. Proceeds from the sale were submitted to the Internal Revenue Service."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $123.58 to $124.33, inclusive. Full information regarding the number of shares sold at each separate price will be provided by the reporting person upon request to the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer."}],"balance_after":380202,"source":{"system":"sec-edgar","filing":"0001765820-25-000011","document":"wk-form4_1763674017.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000176582025000011/wk-form4_1763674017.xml","form_type":"4"}},{"id":1012177,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":24257,"kind":"person","name":"Haydon William Geoffrey","position":1,"cik":"0002093857","reported_name":"Haydon William Geoffrey","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-10-29T20:04:40.000Z","date":"2025-10-27","kind":"grant","planned":false,"acquired":true,"shares":1027,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"The common stock is being granted as restricted stock units, 100% of which shall vest on the date of the 2026 Annual Meeting of Shareholders."}],"balance_after":1027,"source":{"system":"sec-edgar","filing":"0002093857-25-000005","document":"wk-form4_1761768277.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000209385725000005/wk-form4_1761768277.xml","form_type":"4"}},{"id":1039636,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":21776,"kind":"person","name":"Merrill Gary","position":1,"cik":"0001560814","reported_name":"Merrill Gary","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Commercial Officer"}}],"security":"Common Stock","published_at":"2025-09-16T20:25:02.000Z","date":"2025-09-12","kind":"sale","planned":true,"acquired":false,"shares":700,"price":180.17,"value":126119.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to an existing Rule 10b5-1 trading plan adopted by the reporting person on November 20, 2024, as amended on June 13, 2025. The reporting person is subject to a lock-up agreement that expires on November 1, 2025. The sale of shares is a permissible exemption under the terms of the lock-up agreement."}],"balance_after":71837,"source":{"system":"sec-edgar","filing":"0001560814-25-000007","document":"wk-form4_1758054299.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000156081425000007/wk-form4_1758054299.xml","form_type":"4"}},{"id":1039635,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":21776,"kind":"person","name":"Merrill Gary","position":1,"cik":"0001560814","reported_name":"Merrill Gary","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Commercial Officer"}}],"security":"Common Stock","published_at":"2025-09-16T20:25:02.000Z","date":"2025-09-12","kind":"sale","planned":true,"acquired":false,"shares":3506,"price":179.43,"value":629081.58,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to an existing Rule 10b5-1 trading plan adopted by the reporting person on November 20, 2024, as amended on June 13, 2025. The reporting person is subject to a lock-up agreement that expires on November 1, 2025. The sale of shares is a permissible exemption under the terms of the lock-up agreement."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $179.16 and $179.97, inclusive. Full information regarding the number of shares sold at each separate price will be provided by the reporting person upon request to the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer."}],"balance_after":72537,"source":{"system":"sec-edgar","filing":"0001560814-25-000007","document":"wk-form4_1758054299.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000156081425000007/wk-form4_1758054299.xml","form_type":"4"}},{"id":1039634,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":21776,"kind":"person","name":"Merrill Gary","position":1,"cik":"0001560814","reported_name":"Merrill Gary","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Commercial Officer"}}],"security":"Common Stock","published_at":"2025-09-16T20:25:02.000Z","date":"2025-09-12","kind":"sale","planned":true,"acquired":false,"shares":1929,"price":178.65,"value":344615.85,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to an existing Rule 10b5-1 trading plan adopted by the reporting person on November 20, 2024, as amended on June 13, 2025. The reporting person is subject to a lock-up agreement that expires on November 1, 2025. The sale of shares is a permissible exemption under the terms of the lock-up agreement."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $177.95 and $178.84, inclusive. Full information regarding the number of shares sold at each separate price will be provided by the reporting person upon request to the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer."}],"balance_after":76043,"source":{"system":"sec-edgar","filing":"0001560814-25-000007","document":"wk-form4_1758054299.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000156081425000007/wk-form4_1758054299.xml","form_type":"4"}},{"id":1039633,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":21776,"kind":"person","name":"Merrill Gary","position":1,"cik":"0001560814","reported_name":"Merrill Gary","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Commercial Officer"}}],"security":"Common Stock","published_at":"2025-09-16T20:25:02.000Z","date":"2025-09-12","kind":"sale","planned":true,"acquired":false,"shares":6295,"price":177.62,"value":1118117.9,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to an existing Rule 10b5-1 trading plan adopted by the reporting person on November 20, 2024, as amended on June 13, 2025. The reporting person is subject to a lock-up agreement that expires on November 1, 2025. The sale of shares is a permissible exemption under the terms of the lock-up agreement."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $176.95 and $177.91, inclusive. Full information regarding the number of shares sold at each separate price will be provided by the reporting person upon request to the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer."}],"balance_after":77972,"source":{"system":"sec-edgar","filing":"0001560814-25-000007","document":"wk-form4_1758054299.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000156081425000007/wk-form4_1758054299.xml","form_type":"4"}},{"id":1039632,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":21776,"kind":"person","name":"Merrill Gary","position":1,"cik":"0001560814","reported_name":"Merrill Gary","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Commercial Officer"}}],"security":"Common Stock","published_at":"2025-09-16T20:25:02.000Z","date":"2025-09-12","kind":"sale","planned":true,"acquired":false,"shares":2814,"price":176.16,"value":495714.24,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to an existing Rule 10b5-1 trading plan adopted by the reporting person on November 20, 2024, as amended on June 13, 2025. The reporting person is subject to a lock-up agreement that expires on November 1, 2025. The sale of shares is a permissible exemption under the terms of the lock-up agreement."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $175.66 and $176.63, inclusive. Full information regarding the number of shares sold at each separate price will be provided by the reporting person upon request to the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer."}],"balance_after":84267,"source":{"system":"sec-edgar","filing":"0001560814-25-000007","document":"wk-form4_1758054299.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000156081425000007/wk-form4_1758054299.xml","form_type":"4"}},{"id":1043110,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":70481,"kind":"person","name":"DiRico Jennifer Leigh","position":1,"cik":"0002035847","reported_name":"DiRico Jennifer Leigh","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2025-09-11T20:23:48.000Z","date":"2025-09-09","kind":"sale","planned":true,"acquired":false,"shares":450,"price":184.63,"value":83083.5,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to an existing Rule 10b5-1 trading plan adopted by the reporting person on June 10, 2025. The reporting person is subject to a lock-up\nagreement that expires on November 1, 2025. The sale of shares is a permissible exemption under the terms of the lock-up agreement."}],"balance_after":45143,"source":{"system":"sec-edgar","filing":"0002035847-25-000008","document":"wk-form4_1757622225.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000203584725000008/wk-form4_1757622225.xml","form_type":"4"}},{"id":1043109,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":70481,"kind":"person","name":"DiRico Jennifer Leigh","position":1,"cik":"0002035847","reported_name":"DiRico Jennifer Leigh","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2025-09-11T20:23:48.000Z","date":"2025-09-09","kind":"sale","planned":true,"acquired":false,"shares":1351,"price":183.41,"value":247786.91,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to an existing Rule 10b5-1 trading plan adopted by the reporting person on June 10, 2025. The reporting person is subject to a lock-up\nagreement that expires on November 1, 2025. The sale of shares is a permissible exemption under the terms of the lock-up agreement."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $183.09 and $183.91, inclusive. Full information regarding the number of shares sold at each separate price will be provided by the reporting person upon request to the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer."}],"balance_after":45593,"source":{"system":"sec-edgar","filing":"0002035847-25-000008","document":"wk-form4_1757622225.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000203584725000008/wk-form4_1757622225.xml","form_type":"4"}},{"id":1043108,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":70481,"kind":"person","name":"DiRico Jennifer Leigh","position":1,"cik":"0002035847","reported_name":"DiRico Jennifer Leigh","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2025-09-11T20:23:48.000Z","date":"2025-09-09","kind":"sale","planned":true,"acquired":false,"shares":7606,"price":182.35,"value":1386954.1,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to an existing Rule 10b5-1 trading plan adopted by the reporting person on June 10, 2025. The reporting person is subject to a lock-up\nagreement that expires on November 1, 2025. The sale of shares is a permissible exemption under the terms of the lock-up agreement."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $182.02 and $182.80, inclusive. Full information regarding the number of shares sold at each separate price will be provided by the reporting person upon request to the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer."}],"balance_after":46944,"source":{"system":"sec-edgar","filing":"0002035847-25-000008","document":"wk-form4_1757622225.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000203584725000008/wk-form4_1757622225.xml","form_type":"4"}},{"id":1043107,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":70481,"kind":"person","name":"DiRico Jennifer Leigh","position":1,"cik":"0002035847","reported_name":"DiRico Jennifer Leigh","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2025-09-11T20:23:48.000Z","date":"2025-09-09","kind":"sale","planned":true,"acquired":false,"shares":5502,"price":181.55,"value":998888.1,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to an existing Rule 10b5-1 trading plan adopted by the reporting person on June 10, 2025. The reporting person is subject to a lock-up\nagreement that expires on November 1, 2025. The sale of shares is a permissible exemption under the terms of the lock-up agreement."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $181.04 and $182.01, inclusive. Full information regarding the number of shares sold at each separate price will be provided by the reporting person upon request to the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer."}],"balance_after":54550,"source":{"system":"sec-edgar","filing":"0002035847-25-000008","document":"wk-form4_1757622225.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000203584725000008/wk-form4_1757622225.xml","form_type":"4"}},{"id":1047019,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":75755,"kind":"person","name":"Pickens Allison","position":1,"cik":"0001816386","reported_name":"Pickens Allison","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-09-05T20:07:37.000Z","date":"2025-09-03","kind":"sale","planned":true,"acquired":false,"shares":690,"price":177.89,"value":122744.1,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to an existing Rule 10b5-1 trading plan adopted by the reporting person on February 10, 2025. The reporting person is subject to a lock-up agreement that expires on November 1, 2025. The sale of shares is a permissible exemption under the terms of the lock-up agreement."}],"balance_after":5166,"source":{"system":"sec-edgar","filing":"0001816386-25-000005","document":"wk-form4_1757102854.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000181638625000005/wk-form4_1757102854.xml","form_type":"4"}},{"id":1050223,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":423,"kind":"person","name":"Mirchandani Sanjay","position":1,"cik":"0001765820","reported_name":"Mirchandani Sanjay","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2025-09-03T20:15:01.000Z","date":"2025-08-29","kind":"gift","planned":false,"acquired":true,"shares":56000,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Sanjay S. Mirchandani 2025 GRAT"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents a transfer of 56,000 shares previously reported as directly held by the reporting person to Sanjay S. Mirchandani 2025 GRAT, of which the reporting person is the trustee and grantor and which is for the benefit of the reporting person and the reporting person's children. The reporting person maintains indirect beneficial ownership of such shares but disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein. This is not a market transaction, thus no price has been reported."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents a transfer of 56,000 shares previously reported as directly held by the reporting person to Sanjay S. Mirchandani 2025 GRAT, of which the reporting person is the trustee and grantor and which is for the benefit of the reporting person and the reporting person's children. The reporting person maintains indirect beneficial ownership of such shares but disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein. This is not a market transaction, thus no price has been reported."}],"balance_after":56000,"source":{"system":"sec-edgar","filing":"0001765820-25-000007","document":"wk-form4_1756930497.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000176582025000007/wk-form4_1756930497.xml","form_type":"4"}},{"id":1050222,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":423,"kind":"person","name":"Mirchandani Sanjay","position":1,"cik":"0001765820","reported_name":"Mirchandani Sanjay","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2025-09-03T20:15:01.000Z","date":"2025-08-29","kind":"gift","planned":false,"acquired":false,"shares":56000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents a transfer of 56,000 shares previously reported as directly held by the reporting person to Sanjay S. Mirchandani 2025 GRAT, of which the reporting person is the trustee and grantor and which is for the benefit of the reporting person and the reporting person's children. The reporting person maintains indirect beneficial ownership of such shares but disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein. This is not a market transaction, thus no price has been reported."}],"balance_after":387022,"source":{"system":"sec-edgar","filing":"0001765820-25-000007","document":"wk-form4_1756930497.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000176582025000007/wk-form4_1756930497.xml","form_type":"4"}},{"id":1060550,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":423,"kind":"person","name":"Mirchandani Sanjay","position":1,"cik":"0001765820","reported_name":"Mirchandani Sanjay","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2025-08-20T21:33:47.000Z","date":"2025-08-19","kind":"sale","planned":true,"acquired":false,"shares":2759,"price":178.24,"value":491764.16,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F3","text":"The sale reported in this Form 4 was effected pursuant to an existing Rule 10b5-1 trading plan adopted by the reporting person on November 18, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F9","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $177.87 and $178.77 inclusive. Full information regarding the number of shares sold at each separate price will be provided by the reporting person upon request to the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer."}],"balance_after":443022,"source":{"system":"sec-edgar","filing":"0001765820-25-000005","document":"wk-form4_1755725623.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000176582025000005/wk-form4_1755725623.xml","form_type":"4"}},{"id":1060549,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":423,"kind":"person","name":"Mirchandani Sanjay","position":1,"cik":"0001765820","reported_name":"Mirchandani Sanjay","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2025-08-20T21:33:47.000Z","date":"2025-08-19","kind":"sale","planned":true,"acquired":false,"shares":400,"price":177.36,"value":70944.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F3","text":"The sale reported in this Form 4 was effected pursuant to an existing Rule 10b5-1 trading plan adopted by the reporting person on November 18, 2024."}],"balance_after":445781,"source":{"system":"sec-edgar","filing":"0001765820-25-000005","document":"wk-form4_1755725623.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000176582025000005/wk-form4_1755725623.xml","form_type":"4"}},{"id":1060548,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":423,"kind":"person","name":"Mirchandani Sanjay","position":1,"cik":"0001765820","reported_name":"Mirchandani Sanjay","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2025-08-20T21:33:47.000Z","date":"2025-08-19","kind":"sale","planned":true,"acquired":false,"shares":5622,"price":176.72,"value":993519.84,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F3","text":"The sale reported in this Form 4 was effected pursuant to an existing Rule 10b5-1 trading plan adopted by the reporting person on November 18, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F8","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $176.33 and $177.17 inclusive. Full information regarding the number of shares sold at each separate price will be provided by the reporting person upon request to the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer."}],"balance_after":446181,"source":{"system":"sec-edgar","filing":"0001765820-25-000005","document":"wk-form4_1755725623.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000176582025000005/wk-form4_1755725623.xml","form_type":"4"}},{"id":1060547,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":423,"kind":"person","name":"Mirchandani Sanjay","position":1,"cik":"0001765820","reported_name":"Mirchandani Sanjay","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2025-08-20T21:33:47.000Z","date":"2025-08-19","kind":"sale","planned":true,"acquired":false,"shares":6558,"price":175.7,"value":1152240.6,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F3","text":"The sale reported in this Form 4 was effected pursuant to an existing Rule 10b5-1 trading plan adopted by the reporting person on November 18, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $175.28 and $176.25, inclusive. Full information regarding the number of shares sold at each separate price will be provided by the reporting person upon request to the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer."}],"balance_after":451803,"source":{"system":"sec-edgar","filing":"0001765820-25-000005","document":"wk-form4_1755725623.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000176582025000005/wk-form4_1755725623.xml","form_type":"4"}},{"id":1060546,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":423,"kind":"person","name":"Mirchandani Sanjay","position":1,"cik":"0001765820","reported_name":"Mirchandani Sanjay","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2025-08-20T21:33:47.000Z","date":"2025-08-18","kind":"sale","planned":true,"acquired":false,"shares":754,"price":178.63,"value":134687.02,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F3","text":"The sale reported in this Form 4 was effected pursuant to an existing Rule 10b5-1 trading plan adopted by the reporting person on November 18, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $178.22 and $179.05, inclusive. Full information regarding the number of shares sold at each separate price will be provided by the reporting person upon request to the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer."}],"balance_after":458361,"source":{"system":"sec-edgar","filing":"0001765820-25-000005","document":"wk-form4_1755725623.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000176582025000005/wk-form4_1755725623.xml","form_type":"4"}},{"id":1060545,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":423,"kind":"person","name":"Mirchandani Sanjay","position":1,"cik":"0001765820","reported_name":"Mirchandani Sanjay","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2025-08-20T21:33:47.000Z","date":"2025-08-18","kind":"sale","planned":true,"acquired":false,"shares":2677,"price":177.61,"value":475461.97,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F3","text":"The sale reported in this Form 4 was effected pursuant to an existing Rule 10b5-1 trading plan adopted by the reporting person on November 18, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $177.21 and $178.18, inclusive. Full information regarding the number of shares sold at each separate price will be provided by the reporting person upon request to the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer."}],"balance_after":459115,"source":{"system":"sec-edgar","filing":"0001765820-25-000005","document":"wk-form4_1755725623.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000176582025000005/wk-form4_1755725623.xml","form_type":"4"}},{"id":1060544,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":423,"kind":"person","name":"Mirchandani Sanjay","position":1,"cik":"0001765820","reported_name":"Mirchandani Sanjay","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2025-08-20T21:33:47.000Z","date":"2025-08-18","kind":"sale","planned":true,"acquired":false,"shares":1190,"price":176.68,"value":210249.2,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F3","text":"The sale reported in this Form 4 was effected pursuant to an existing Rule 10b5-1 trading plan adopted by the reporting person on November 18, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $176.14 and $177.04, inclusive. Full information regarding the number of shares sold at each separate price will be provided by the reporting person upon request to the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer."}],"balance_after":461792,"source":{"system":"sec-edgar","filing":"0001765820-25-000005","document":"wk-form4_1755725623.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000176582025000005/wk-form4_1755725623.xml","form_type":"4"}},{"id":1060543,"issuer":{"id":422,"kind":"organization","name":"COMMVAULT SYSTEMS INC","symbol":"CVLT"},"owners":[{"id":423,"kind":"person","name":"Mirchandani Sanjay","position":1,"cik":"0001765820","reported_name":"Mirchandani Sanjay","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2025-08-20T21:33:47.000Z","date":"2025-08-18","kind":"sale","planned":true,"acquired":false,"shares":6699,"price":178.03,"value":1192622.97,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"Represents shares automatically sold solely to satisfy tax withholding obligations of reporting person on vesting of restricted stock. Proceeds from the sale were submitted to the Internal Revenue Service."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes shares purchased under the Commvault Employee Stock Purchase Plan on August 14, 2025."}],"balance_after":462982,"source":{"system":"sec-edgar","filing":"0001765820-25-000005","document":"wk-form4_1755725623.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1169561/000176582025000005/wk-form4_1755725623.xml","form_type":"4"}}],"next_cursor":"2025-08-20T21:33:47.000000Z,1060543"}