Seagate Technology Holdings plc
US ˙ NasdaqGS ˙ IE00BKVD2N49

SecuritySTX / Seagate Technology Holdings plc
InstitutionStandard Life Aberdeen plc
Latest Disclosed Ownership184,195 shares
Latest Disclosed Value $ 72,160,233
Standard Life Aberdeen plc reports 3.01% increase in ownership of STX / Seagate Technology Holdings plc

On April 29, 2026 - Standard Life Aberdeen plc filed a 13F-HR form disclosing ownership of 184,195 shares of Seagate Technology Holdings plc (US:STX) valued at $72,160,233 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 16, 2026 disclosing 178,818 shares of Seagate Technology Holdings plc. This represents a change in shares of 3.01% during the quarter. The current value of the position is $156,099,737 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)
2026-04-29 2026-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 184,195 5,377 3.01 72,160 46.54 0.0632
2026-01-16 2025-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 178,818 117 0.07 49,245 19.58 0.0762
2025-11-07 2025-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 178,701 12,037 7.22 41,182 72.69 0.0651
2025-07-24 2025-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 166,664 8,658 5.48 23,848 79.45 0.0406
2025-05-13 2025-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 158,006 87,855 125.24 13,290 119.94 0.0259
2025-01-24 2024-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 70,151 -1,890 -2.62 6,042 -22.99 0.0113
2024-10-25 2024-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 72,041 1,450 2.05 7,846 7.64 0.0144
2024-08-09 2024-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 70,591 -17,957 -20.28 7,290 -11.53 0.0140
2024-05-09 2024-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 88,548 205 0.23 8,239 9.26 0.0162
2024-01-31 2023-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 88,343 38,938 78.81 7,542 131.46 0.0164
2023-11-07 2023-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 49,405 -1,653 -3.24 3,258 3.17 0.0083
2024-06-20 2023-06-30 13F/A-1 SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 51,058 -447 -0.87 3,159 -7.25 0.0074
2023-08-04 2023-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 51,058 -447 3,159 0.0074
2024-06-20 2023-03-31 13F/A-1 SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 51,505 -574 -1.10 3,406 24.32 0.0085
2023-04-28 2023-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 51,505 -574 3,406 0.0085
2024-06-20 2022-12-31 13F/A-1 SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 52,079 447 0.87 2,740 -0.36 0.0075
2023-02-10 2022-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 52,079 447 2,740 0.0075
2022-11-10 2022-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 51,632 -3,662 -6.62 2,749 -30.37 0.0082
2022-08-05 2022-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 55,294 -3,357 -5.72 3,948 -26.30 0.0124
2022-05-04 2022-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 58,651 -32,609 -35.73 5,357 -48.05 0.0137
2022-02-10 2021-12-31 13F/A-1 SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 91,260 -6,317 -6.47 10,311 26.94 0.0226
2022-02-08 2021-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 91,260 -6,317 10,311 0.0074
2021-11-15 2021-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 97,577 97,577 8,123 0.0183
2021-08-10 2021-06-30 13F SEAGATE TECHNOLOGY SHS G7945M107 0 -121,239 -100.00 0 -100.00
2021-05-06 2021-03-31 13F SEAGATE TECHNOLOGY SHS G7945M107 121,239 -6,184 -4.85 9,306 17.49 0.0212
2021-02-10 2020-12-31 13F SEAGATE TECHNOLOGY SHS G7945M107 127,423 -14,777 -10.39 7,921 13.04 0.0193
2020-10-21 2020-09-30 13F SEAGATE TECHNOLOGY SHS G7945M107 142,200 -14,074 -9.01 7,007 -7.38 0.0187
2020-08-10 2020-06-30 13F SEAGATE TECHNOLOGY SHS G7945M107 156,274 19,989 14.67 7,565 13.74 0.0205
2020-05-13 2020-03-31 13F SEAGATE TECHNOLOGY SHS G7945M107 136,285 -4,085 -2.91 6,651 -20.37 0.0211
2020-02-18 2019-12-31 13F SEAGATE TECHNOLOGY SHS G7945M107 140,370 -16,091 -10.28 8,352 -0.75 0.0202
2019-11-13 2019-09-30 13F SEAGATE TECHNOLOGY SHS G7945M107 156,461 -89,064 -36.27 8,415 -27.28 0.0210
2019-08-13 2019-06-30 13F SEAGATE TECHNOLOGY SHS G7945M107 245,525 -63,266 -20.49 11,571 -21.76 0.0257
2019-05-14 2019-03-31 13F SEAGATE TECHNOLOGY SHS G7945M107 308,791 5,989 1.98 14,789 27.03 0.0320
2019-02-12 2018-12-31 13F SEAGATE TECHNOLOGY SHS G7945M107 302,802 89,387 41.88 11,642 15.21 0.0276
2018-11-20 2018-09-30 13F/A-1 SEAGATE TECHNOLOGY SHS G7945M107 213,415 5,142 2.47 10,105 -14.08 0.0188
2018-11-13 2018-09-30 13F SEAGATE TECHNOLOGY SHS G7945M107 213,415 5,142 10,105
2018-08-09 2018-06-30 13F SEAGATE TECHNOLOGY SHS G7945M107 208,273 16,137 8.40 11,761 4.60 0.0226
2018-05-15 2018-03-31 13F SEAGATE TECHNOLOGY SHS G7945M107 192,136 -35,647 -15.65 11,244 17.96 0.0223
2018-02-12 2017-12-31 13F SEAGATE TECHNOLOGY SHS G7945M107 227,783 -356,634 -61.02 9,532 -50.84 0.0182
2017-11-14 2017-09-30 13F SEAGATE TECHNOLOGY SHS G7945M107 584,417 584,417 19,388 0.0354
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.