X0306 4 2021-01-15 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 2021-01-15 4 S 0 5900 50.87 D 271950 I By Trust Common Shares 2021-01-15 4 S 0 1600 51.46 D 270350 I By Trust Common Shares 2021-01-15 4 M 0 8557 0.00 A 278907 I By Trust Common Shares 2021-01-15 4 F 0 4114 50.77 D 274793 I By Trust Common Shares 2021-01-15 4 M 0 11598 0.00 A 286391 I By Trust Common Shares 2021-01-15 4 F 0 5355 50.77 D 281036 I By Trust Common Shares 2021-01-15 4 M 0 14910 0.00 A 295946 I By Trust Common Shares 2021-01-15 4 F 0 6118 50.77 D 289828 I By Trust Restricted Stock Units 2021-01-15 4 M 0 8557 0.00 D Common Shares 8557 8557 D Restricted Stock Units 2021-01-15 4 M 0 11598 0.00 D Common Shares 11598 57993 D Restricted Stock Units 2021-01-15 4 M 0 14910 0.00 D Common Shares 14910 134196 D The sales of these 5,900 shares 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 $50.30 to $51.28, 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 sales of these 1,600 shares 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 $51.34 to $51.62, 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. 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 RSUs vest fully on 4/15/2021. The remaining RSUs vest on each of 4/15/2021, 7/15/2021, 10/15/2021, 1/15/2022 and 4/15/2022. The remaining RSU's vest on each of 4/15/2021, 7/15/2021, 10/15/2021, 1/15/2022, 4/15/2022, 7/15/2022, 10/15/2022, 1/15/2023 and 4/15/2023. Matthew Murphy by Blair Walters as Attorney-in-Fact 2021-01-20