X0306 4 2021-04-15 0 0001058057 MARVELL TECHNOLOGY GROUP LTD MRVL 0001381430 MURPHY MATTHEW J 5488 MARVELL LANE SANTA CLARA CA 95054 1 1 0 0 CEO and President Common Shares 2021-04-15 4 S 0 7500 48.66 D 267328 I By Trust Common Shares 2021-04-16 4 S 0 51101 47.96 D 216227 I By Trust Common Shares 2021-04-16 4 S 0 18623 48.51 D 197604 I By Trust Common Shares 2021-04-15 4 M 0 14911 0.00 A 212515 I By Trust Common Shares 2021-04-15 4 F 0 6045 48.78 D 206470 I By Trust Common Shares 2021-04-15 4 M 0 8557 0.00 A 215027 I By Trust Common Shares 2021-04-15 4 F 0 4075 48.78 D 210952 I By Trust Common Shares 2021-04-15 4 M 0 11599 0.00 A 222551 I By Trust Common Shares 2021-04-15 4 F 0 5298 48.78 D 217253 I By Trust Common Shares 2021-04-15 4 M 0 95602 0.00 A 312855 I By Trust Common Shares 2021-04-15 4 F 0 45527 48.78 D 267328 I By Trust Restricted Stock Units 2021-04-15 4 M 0 14911 0.00 D Common Shares 14911 119285 D Restricted Stock Units 2021-04-15 4 M 0 8557 0.00 D Common Shares 8557 0 D Restricted Stock Units 2021-04-15 4 M 0 11599 0.00 D Common Shares 11599 46394 D Restricted Stock Units 2021-04-15 4 M 0 95602 0.00 D Common Shares 95602 0 D Restricted Stock Units 2021-04-15 4 A 0 101477 0.00 A Common Shares 101477 101477 D The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $48.22 to $48.95, inclusive. The reporting person undertakes to provide Marvell Technology Group Ltd. ("Marvell"), any security holder of Marvell, or the staff of the Securities and Exchange Commission ("SEC"), upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote to this Form 4. Shares held by Matthew and Laura Murphy as co-trustees of the Matthew and Laura Murphy Family Trust UTD 7/10/2007. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $47.42 to $48.41, inclusive. The reporting person undertakes to provide Marvell, any security holder of Marvell, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote to this Form 4. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $48.42 to $48.84, inclusive. The reporting person undertakes to provide Marvell, any security holder of Marvell, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote to this Form 4. Surrender of shares in payment of tax withholding due as a result of the vesting of restricted stock units ("RSUs"). Each restricted stock unit represents a contingent right to receive one Marvell Technology Group Ltd. ("Marvell") common share upon vesting. The remaining RSU's vest on each of 07/15/2021, 10/15/2021, 01/15/2022, 04/15/22, 07/15/2022, 10/15/2022, 01/15/2023 and 04/15/2023. This award fully vested on April 15, 2021. The remaining RSUs vest quarterly on each of 07/15/2021, 10/15/2021, 01/15/2022 and 04/15/2022. This grant is fully vested. Reflects the number of shares earned in respect of performance based restricted stock units granted on 04/15/2018. The achievement levels of the relative TSR performance metrics applicable to the award and the number of shares earned based on such results were certified on 04/15/2021. The Restricted Stock Units (RSUs) will vest in equal quarterly installments over three years, and were granted as part of the annual grant process. Matthew Murphy by Blair Walters as Attorney-in-Fact 2021-04-19