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Matt Massengill

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Insider profile

Currently holds positions in Western Digital Corp and Microsemi Corp

Positions

Position Company Period
Independent Chairman of the Board Western Digital Corp Jan. 1, 2018 -
Independent Director Microsemi Corp Jan. 1, 2006 -
Chairman of the Board Western Digital Corp Nov. 1, 2015 - Jan. 1, 2018
Independent Director Western Digital Corp Jan. 1, 2011 - Nov. 1, 2015
Matt Massengill's trades of Western Digital Corp's stock


Subscribe to get access to the transaction volume chart and in-chart transaction details
• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date Company B/S Transaction type Nb. shares
Price
Value 		Number of shares Price Value Details
2026-02-06 2026-02-05
PlS Planned sale
98,907 -7.7%
309.63
US$1,841,666 		98,907 -7.7% 309.63 US$1,841,666
2026-02-06 2026-02-05
PlS Planned sale
13,483 -42.6%
67.35
US$2,446,039 		13,483 -42.6% 67.35 US$2,446,039
2026-02-06 2026-02-05
PlS Planned sale
63,280 -33.4%
248.61
US$705,869 		63,280 -33.4% 248.61 US$705,869
2026-02-06 2026-02-05
PlS Planned sale
2,600 -42.5%
264.01
US$686,429 		2,600 -42.5% 264.01 US$686,429
2026-02-06 2026-02-05
PlS Planned sale
2,300 -27.3%
262.77
US$604,366 		2,300 -27.3% 262.77 US$604,366
2026-02-06 2026-02-05
PlS Planned sale
3,597 -29.9%
261.71
US$941,363 		3,597 -29.9% 261.71 US$941,363
2026-02-06 2026-02-05
PlS Planned sale
5,987 -33.3%
260.57
US$1,560,037 		5,987 -33.3% 260.57 US$1,560,037
2026-02-06 2026-02-05
PlS Planned sale
4,915 -21.4%
259.59
US$1,275,896 		4,915 -21.4% 259.59 US$1,275,896
2026-02-06 2026-02-05
PlS Planned sale
7,000 -23.4%
258.67
US$1,810,703 		7,000 -23.4% 258.67 US$1,810,703
2026-02-06 2026-02-05
PlS Planned sale
4,411 -12.9%
257.69
US$1,136,649 		4,411 -12.9% 257.69 US$1,136,649
2026-02-06 2026-02-05
PlS Planned sale
2,600 -7.0%
256.63
US$667,241 		2,600 -7.0% 256.63 US$667,241
2026-02-05 2026-02-05
PrS Proposed sale
36,926
269.41
US$9,948,234 		36,926 269.41 US$9,948,234
2026-02-03 2026-02-02
US Sandisk Corp (SNDK)
PrS Proposed sale
2,000
665.53
US$1,331,060 		2,000 665.53 US$1,331,060
2026-02-02 2026-02-02
US Sandisk Corp (SNDK)
PrS Proposed sale
2,000
665.53
US$1,331,060 		2,000 665.53 US$1,331,060
2026-01-21 2026-01-21
US Sandisk Corp (SNDK)
PrS Proposed sale
2,000
492.29
US$984,571 		2,000 492.29 US$984,571
2026-01-15 2026-01-15
US Sandisk Corp (SNDK)
PrS Proposed sale
1,000
421.46
US$421,459 		1,000 421.46 US$421,459
2026-01-07 2026-01-07
US Sandisk Corp (SNDK)
PrS Proposed sale
2,000
346.92
US$693,839 		2,000 346.92 US$693,839
2026-01-06 2026-01-06
US Sandisk Corp (SNDK)
PrS Proposed sale
2,816
338.43
US$953,009 		2,816 338.43 US$953,009
2025-11-26 2025-11-26
US Sandisk Corp (SNDK)
PrS Proposed sale
2,340
217.26
US$508,395 		2,340 217.26 US$508,395
2025-11-25 2025-11-25
US Sandisk Corp (SNDK)
PrS Proposed sale
1,500
223.75
US$335,625 		1,500 223.75 US$335,625
2025-11-24 2025-11-24
US Sandisk Corp (SNDK)
PrS Proposed sale
1,000
225.22
US$225,220 		1,000 225.22 US$225,220
2016-11-08 2016-11-07
PlS Planned sale
1,487 -8.7%
57.11
US$84,927 		1,487 -8.7% 57.11 US$84,927