Seagate Technology Holdings plc
DE ˙ XTRA ˙ IE00BKVD2N49
38,91 € ↓ -0,56 (-1,41%)
2017-05-15
DEL PRIS
SecurityDE:STT / Seagate Technology Holdings plc
InstitutionQuadrant Capital Group Llc
Latest Disclosed Ownership9,322 shares
Latest Disclosed Value $ 3,651,987
Quadrant Capital Group Llc reports 0.29% increase in ownership of STT / Seagate Technology Holdings plc

On May 13, 2026 - Quadrant Capital Group Llc filed a 13F-HR/A form disclosing ownership of 9,322 shares of Seagate Technology Holdings plc (DE:STT) valued at $3,651,987 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 9,295 shares of Seagate Technology Holdings plc. This represents a change in shares of 0.29% during the quarter. The current value of the position is $362,719 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)
2026-05-13 2026-03-31 13F/A-1 SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 9,322 27 0.29 3,652 42.67 0.1092
2026-05-11 2026-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 9,322 27 49 0.0369
2026-02-12 2025-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 9,295 -293 -3.06 2,560 13.08 0.0773
2025-11-13 2025-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 9,588 116 1.22 2,263 65.54 0.0736
2025-08-13 2025-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 9,472 3,882 69.45 1,367 188.40 0.0492
2025-05-13 2025-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 5,590 3,430 158.80 475 154.84 0.0176
2025-02-13 2024-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 2,160 -85 -3.79 186 -24.08 0.0128
2024-11-12 2024-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 2,245 -2 -0.09 246 5.60 0.0171
2024-08-12 2024-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 2,247 18 0.81 232 12.08 0.0172
2024-05-15 2024-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 2,229 -116 -4.95 207 3.50 0.0164
2024-02-08 2023-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 2,345 304 14.89 200 49.25 0.0172
2023-11-14 2023-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 2,041 152 8.05 135 15.52 0.0135
2023-08-10 2023-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 1,889 -93 -4.69 117 -11.45 0.0116
2023-05-11 2023-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 1,982 537 37.16 131 72.37 0.0136
2023-02-13 2022-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 1,445 392 37.23 76 35.71 0.0086
2022-11-10 2022-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 1,053 132 14.33 56 -15.15 0.0074
2022-08-09 2022-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 921 171 22.80 66 -1.49 0.0089
2022-05-06 2022-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 750 -12 -1.57 67 -22.09 0.0081
2022-02-01 2021-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 762 29 3.96 86 43.33 0.0103
2021-11-12 2021-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 733 16 2.23 60 -4.76 0.0084
2021-08-09 2021-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 717 54 8.14 63 23.53 0.0091
2021-05-12 2021-03-31 13F SEAGATE TECHNOLOGY SHS G7945M107 663 52 8.51 51 34.21 0.0083
2021-02-16 2020-12-31 13F SEAGATE TECHNOLOGY SHS G7945M107 611 -19 -3.02 38 22.58 0.0071
2020-11-13 2020-09-30 13F SEAGATE TECHNOLOGY SHS G7945M107 630 -38 -5.69 31 -3.12 0.0068
2020-08-13 2020-06-30 13F SEAGATE TECHNOLOGY SHS G7945M107 668 -1,651 -71.19 32 -71.17 0.0071
2020-05-15 2020-03-31 13F Seagate Technology Com G7945M107 2,319 1,779 329.44 111 296.43 0.0186
2020-03-19 2019-12-31 13F/A-1 Seagate Technology Com G7945M107 540 419 346.28 28 833.33 0.0034
2020-02-03 2019-12-31 13F Seagate Technology Com G7945M107 540 419 28 94.6157
2019-10-24 2019-09-30 13F Seagate Technology COM G7945M107 121 39 47.56 3 50.00 0.0005
2019-07-24 2019-06-30 13F Seagate Technology COM G7945M107 82 0 0.00 2 0.00 0.0003
2019-04-29 2019-03-31 13F Seagate Technology COM G7945M107 82 -399 -82.95 2 -88.24 0.0004
2019-01-17 2018-12-31 13F Seagate Technology COM G7945M107 481 0 0.00 17 -15.00 0.0045
2018-10-29 2018-09-30 13F Seagate Technology COM G7945M107 481 0 0.00 20 -16.67 0.0057
2018-08-08 2018-06-30 13F Seagate Technology COM G7945M107 481 0 0.00 24 -4.00 0.0084
2018-05-10 2018-03-31 13F Seagate Technology COM G7945M107 481 21 4.57 25 38.89 0.0091
2018-01-31 2017-12-31 13F Seagate Technology COM G7945M107 460 5 1.10 18 38.46 0.0072
2017-10-13 2017-09-30 13F Seagate Technology COM G7945M107 455 -74 -13.99 13 -13.33 0.0054
2017-08-14 2017-06-30 13F Seagate Technology COM G7945M107 529 -19 -3.47 15 -34.78 0.0066
2017-04-10 2017-03-31 13F Seagate Technology COM G7945M107 548 -217 -28.37 23 -14.81 0.0101
2017-01-11 2016-12-31 13F Seagate Technology COM G7945M107 765 -2 -0.26 27 -3.57 0.0135
2016-10-25 2016-09-30 13F Seagate Technology COM G7945M107 767 51 7.12 28 86.67 0.0183
2016-07-28 2016-06-30 13F Seagate Technology COM G7945M107 716 426 146.90 15 66.67 0.0103
2016-04-27 2016-03-31 13F Seagate Technology COM G7945M107 290 -29 -9.09 9 -10.00 0.0058
2016-01-28 2015-12-31 13F Seagate Technology COM G7945M107 319 29 10.00 10 -16.67 0.0069
2015-10-28 2015-09-30 13F Seagate Technology COM G7945M107 290 0 0.00 12 -7.69 0.0083
2015-08-12 2015-06-30 13F Seagate Technology COM G7945M107 290 290 13 0.0083
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.