Seagate Technology Holdings plc
DE ˙ XTRA ˙ IE00BKVD2N49
38,91 € ↓ -0,56 (-1,41%)
2017-05-15
DEL PRIS
SecurityDE:STT / Seagate Technology Holdings plc
InstitutionProShare Advisors LLC
Latest Disclosed Ownership318,510 shares
Latest Disclosed Value $ 124,779,477
ProShare Advisors LLC reports 16.37% decrease in ownership of STT / Seagate Technology Holdings plc

On April 24, 2026 - ProShare Advisors LLC filed a 13F-HR form disclosing ownership of 318,510 shares of Seagate Technology Holdings plc (DE:STT) valued at $124,779,477 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 380,854 shares of Seagate Technology Holdings plc. This represents a change in shares of -16.37% during the quarter. The current value of the position is $12,393,224 USD.

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)
2026-04-24 2026-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 318,510 -62,344 -16.37 124,779 18.97 0.1848
2026-02-06 2025-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 380,854 335,431 738.46 104,883 878.20 0.1851
2025-11-06 2025-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 45,423 -11,345 -19.98 10,723 30.87 0.0224
2025-08-07 2025-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 56,768 2,426 4.46 8,193 77.49 0.0163
2025-05-08 2025-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 54,342 -1,479 -2.65 4,616 -4.17 0.0104
2025-02-14 2024-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 55,821 3,869 7.45 4,818 -15.34 0.0110
2024-11-14 2024-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 51,952 2,213 4.45 5,690 10.79 0.0139
2024-08-13 2024-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 49,739 1,717 3.58 5,137 14.95 0.0137
2024-05-08 2024-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 48,022 -2,143 -4.27 4,468 4.34 0.0119
2024-02-14 2023-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 50,165 13,871 38.22 4,283 78.94 0.0131
2023-11-13 2023-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 36,294 -1,039 -2.78 2,394 3.64 0.0075
2023-08-10 2023-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 37,333 2,162 6.15 2,310 -0.69 0.0067
2023-05-26 2023-03-31 13F/A-1 SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 35,171 6,686 23.47 2,326 55.21 0.0071
2023-02-02 2022-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 28,485 -1,096 -3.71 1,499 -4.95 0.0053
2022-11-07 2022-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 29,581 -4,546 -13.32 1,576 -35.38 0.0060
2022-08-01 2022-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 34,127 -14,847 -30.32 2,439 -44.59 0.0081
2022-05-10 2022-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 48,974 -5,127 -9.48 4,402 -27.99 0.0095
2022-02-08 2021-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 54,101 12,801 31.00 6,113 79.37 0.0120
2021-11-12 2021-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 41,300 -1,123 -2.65 3,408 -8.63 0.0096
2021-08-13 2021-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 42,423 2,506 6.28 3,730 21.74 0.0109
2021-05-14 2021-03-31 13F SEAGATE TECHNOLOGY SHS G7945M107 39,917 -2,020 -4.82 3,064 17.53 0.0096
2021-02-09 2020-12-31 13F SEAGATE TECHNOLOGY SHS G7945M107 41,937 378 0.91 2,607 27.29 0.0097
2020-11-13 2020-09-30 13F SEAGATE TECHNOLOGY SHS G7945M107 41,559 4,970 13.58 2,048 15.64 0.0095
2020-08-03 2020-06-30 13F SEAGATE TECHNOLOGY SHS G7945M107 36,589 8,036 28.14 1,771 27.14 0.0095
2020-05-15 2020-03-31 13F SEAGATE TECHNOLOGY SHS G7945M107 28,553 -17,618 -38.16 1,393 -49.29 0.0100
2020-02-12 2019-12-31 13F SEAGATE TECHNOLOGY SHS G7945M107 46,171 7,472 19.31 2,747 31.94 0.0127
2019-11-12 2019-09-30 13F SEAGATE TECHNOLOGY SHS G7945M107 38,699 -15,908 -29.13 2,082 -19.08 0.0117
2019-08-13 2019-06-30 13F SEAGATE TECHNOLOGY SHS G7945M107 54,607 -3,050 -5.29 2,573 -6.81 0.0154
2019-05-15 2019-03-31 13F SEAGATE TECHNOLOGY SHS G7945M107 57,657 161 0.28 2,761 24.43 0.0165
2019-02-14 2018-12-31 13F SEAGATE TECHNOLOGY SHS G7945M107 57,496 -131,125 -69.52 2,219 -75.15 0.0155
2018-11-14 2018-09-30 13F SEAGATE TECHNOLOGY SHS G7945M107 188,621 -6,634 -3.40 8,931 -19.00 0.0606
2018-08-13 2018-06-30 13F SEAGATE TECHNOLOGY SHS G7945M107 195,255 -17,587 -8.26 11,026 -11.48 0.0739
2018-05-14 2018-03-31 13F SEAGATE TECHNOLOGY SHS G7945M107 212,842 32,002 17.70 12,456 64.63 0.0812
2018-02-14 2017-12-31 13F SEAGATE TECHNOLOGY SHS G7945M107 180,840 49,576 37.77 7,566 73.77 0.0525
2017-11-13 2017-09-30 13F SEAGATE TECHNOLOGY SHS G7945M107 131,264 5,951 4.75 4,354 -10.34 0.0400
2017-08-11 2017-06-30 13F SEAGATE TECHNOLOGY SHS G7945M107 125,313 20,163 19.18 4,856 0.54 0.0484
2017-05-12 2017-03-31 13F/A-2 SEAGATE TECHNOLOGY SHS G7945M107 105,150 -2,030 -1.89 4,830 18.06 0.0505
2017-05-08 2017-03-31 13F/A-1 SEAGATE TECHNOLOGY SHS G7945M107 105,150 0 4,830 0.0505
2017-04-25 2017-03-31 13F SEAGATE TECHNOLOGY SHS G7945M107 105,150 4,830
2017-02-13 2016-12-31 13F SEAGATE TECHNOLOGY SHS G7945M107 107,180 26,360 32.62 4,091 31.29 0.0453
2016-11-10 2016-09-30 13F SEAGATE TECHNOLOGY SHS G7945M107 80,820 -63,320 -43.93 3,116 -11.25 0.0435
2016-08-12 2016-06-30 13F SEAGATE TECHNOLOGY SHS G7945M107 144,140 -2,944 -2.00 3,511 -30.71 0.0452
2016-05-06 2016-03-31 13F SEAGATE TECHNOLOGY SHS G7945M107 147,084 -30,328 -17.09 5,067 -22.09 0.0698
2016-02-05 2015-12-31 13F SEAGATE TECHNOLOGY SHS G7945M107 177,412 3,406 1.96 6,504 -16.56 0.0788
2015-11-06 2015-09-30 13F SEAGATE TECHNOLOGY SHS G7945M107 174,006 21,149 13.84 7,795 7.35 0.1095
2015-08-11 2015-06-30 13F SEAGATE TECHNOLOGY SHS G7945M107 152,857 -45,620 -22.99 7,261 -29.69 0.1005
2015-05-08 2015-03-31 13F SEAGATE TECHNOLOGY SHS G7945M107 198,477 198,477 0.00 10,327 0.1216
2015-01-30 2014-12-31 13F SEAGATE TECHNOLOGY SHS G7945M107 0 -160,687 -100.00 0 -100.00
2014-11-06 2014-09-30 13F SEAGATE TECHNOLOGY SHS G7945M107 160,687 17,905 12.54 9,203 13.44 0.1220
2014-08-08 2014-06-30 13F SEAGATE TECHNOLOGY SHS G7945M107 142,782 -3,158 -2.16 8,113 -1.01 0.1051
2014-05-07 2014-03-31 13F SEAGATE TECHNOLOGY SHS G7945M107 145,940 16,863 13.06 8,196 13.06 0.1025
2014-02-04 2013-12-31 13F SEAGATE TECHNOLOGY SHS G7945M107 129,077 62,144 92.85 7,249 147.58 0.1080
2013-11-07 2013-09-30 13F SEAGATE TECHNOLOGY SHS G7945M107 66,933 -41,871 -38.48 2,928 -39.98 0.0695
2013-07-25 2013-06-30 13F SEAGATE TECHNOLOGY SHS G7945M107 108,804 108,804 4,878 0.0957
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.