Marvell Technology, Inc.
MX ˙ BMV ˙ US5738741041
SecurityMX:MRVL1 / Marvell Technology, Inc.
InstitutionBoston Partners
Latest Disclosed Ownership6,165,682 shares
Latest Disclosed Value $ 612,570,878
Boston Partners ownership in MRVL1 / Marvell Technology, Inc.

On May 11, 2026 - Boston Partners filed a 13F-HR form disclosing ownership of 6,165,682 shares of Marvell Technology, Inc. (MX:MRVL1) valued at $612,570,878 USD as of March 31, 2026. The entity filed a previous 13F-HR on August 12, 2020 disclosing 0 shares of Marvell Technology, Inc..

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-11 2026-03-31 13F MARVELL TECHNOLOGY COM 573874104 6,165,682 6,165,682 612,571 0.2742
2020-08-12 2020-06-30 13F MARVELL TECHNOLOGY GROUP ORD G5876H105 0 -3,148,739 -100.00 0 -100.00
2020-05-13 2020-03-31 13F MARVELL TECHNOLOGY GROUP ORD G5876H105 3,148,739 -192,970 -5.77 71,247 -19.73 0.1415
2020-02-06 2019-12-31 13F/A-1 MARVELL TECHNOLOGY GROUP ORD G5876H105 3,341,709 120,417 3.74 88,764 10.35 0.1174
2020-02-05 2019-12-31 13F MARVELL TECHNOLOGY GROUP ORD G5876H105 3,341,709 120,417 88,764 49,905.7133
2019-11-20 2019-09-30 13F/A-1 MARVELL TECHNOLOGY GROUP ORD G5876H105 3,221,292 -628,200 -16.32 80,438 -12.49 0.1089
2019-11-08 2019-09-30 13F MARVELL TECHNOLOGY GROUP ORD G5876H105 3,823,836 -25,656 91,288 0.1207
2019-08-26 2019-06-30 13F/A-1 MARVELL TECHNOLOGY GROUP ORD G5876H105 3,849,492 -8,728,096 -69.39 91,914 -63.26 0.1205
2019-08-09 2019-06-30 13F MARVELL TECHNOLOGY GROUP ORD G5876H105 3,849,617 -8,727,971 91,917
2019-05-13 2019-03-31 13F/A-1 MARVELL TECHNOLOGY GROUP ORD G5876H105 12,577,588 -2,736,152 -17.87 250,168 0.90 0.3314
2019-05-03 2019-03-31 13F MARVELL TECHNOLOGY GROUP ORD G5876H105 12,577,588 -2,736,152 250,168
2019-02-07 2018-12-31 13F MARVELL TECHNOLOGY GROUP ORD G5876H105 15,313,740 1,030,464 7.21 247,930 -10.06 0.3563
2018-11-14 2018-09-30 13F MARVELL TECHNOLOGY GROUP ORD G5876H105 14,283,276 2,076,622 17.01 275,667 5.33 0.3203
2018-08-03 2018-06-30 13F MARVELL TECHNOLOGY GROUP ORD G5876H105 12,206,654 305,655 2.57 261,711 4.72 0.3137
2018-05-04 2018-03-31 13F MARVELL TECHNOLOGY GROUP ORD G5876H105 11,900,999 -718,466 -5.69 249,921 -7.76 0.3013
2018-02-14 2017-12-31 13F/A-1 MARVELL TECHNOLOGY GROUP ORD G5876H105 12,619,465 413,878 3.39 270,940 24.01 0.3192
2018-02-01 2017-12-31 13F MARVELL TECHNOLOGY GROUP ORD G5876H105 12,619,465 413,878 270,940
2017-11-02 2017-09-30 13F MARVELL TECHNOLOGY GROUP ORD G5876H105 12,205,587 4,143,929 51.40 218,480 64.05 0.2700
2017-08-02 2017-06-30 13F MARVELL TECHNOLOGY GROUP ORD G5876H105 8,061,658 8,061,658 133,179 0.1694
2016-05-12 2016-03-31 13F MARVELL TECHNOLOGY GROUP ORD G5876H105 0 -180,901 -100.00 0 -100.00
2016-02-08 2015-12-31 13F MARVELL TECHNOLOGY GROUP ORD G5876H105 180,901 180,901 0.00 1,596 0.0023
2015-11-10 2015-09-30 13F MARVELL TECHNOLOGY GROUP ORD G5876H105 0 0 0 0.0000
2014-11-12 2014-09-30 13F MARVELL TECHNOLOGY GROUP ORD G5876H105 0 -10,700 -100.00 0 -100.00
2014-08-08 2014-06-30 13F MARVELL TECHNOLOGY GROUP ORD G5876H105 10,700 -5,800 -35.15 153 -41.15 0.0003
2014-05-07 2014-03-31 13F MARVELL TECHNOLOGY GROUP ORD G5876H105 16,500 0 0.00 260 9.70 0.0005
2014-02-06 2013-12-31 13F MARVELL TECHNOLOGY GROUP ORD G5876H105 16,500 -7,300 -30.67 237 -13.50 0.0005
2013-11-12 2013-09-30 13F MARVELL TECHNOLOGY GROUP ORD G5876H105 23,800 2,800 13.33 274 11.38 0.0007
2013-08-01 2013-06-30 13F MARVELL TECHNOLOGY GROUP ORD G5876H105 21,000 21,000 246 0.0007
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.