Seagate Technology Holdings plc
US ˙ NasdaqGS ˙ IE00BKVD2N49

SecuritySTX / Seagate Technology Holdings plc
InstitutionSwedbank AB
Latest Disclosed Ownership709,160 shares
Latest Disclosed Value $ 277,820,521
Swedbank AB reports 67.57% increase in ownership of STX / Seagate Technology Holdings plc

On April 29, 2026 - Swedbank AB filed a 13F-HR form disclosing ownership of 709,160 shares of Seagate Technology Holdings plc (US:STX) valued at $277,820,522 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on February 9, 2026 disclosing 423,211 shares of Seagate Technology Holdings plc. This represents a change in shares of 67.57% during the quarter. The current value of the position is $600,991,825 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 709,160 285,949 67.57 277,821 138.37 0.1641
2026-02-09 2025-12-31 13F/A-1 SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 423,211 377,630 828.48 116,548 983.26 0.1127
2026-02-03 2025-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 423,211 377,630 116,548 0.0634
2025-10-15 2025-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 45,581 638 1.42 10,760 65.88 0.0109
2025-07-10 2025-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 44,943 6,148 15.85 6,487 96.84 0.0073
2025-04-14 2025-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 38,795 0 0.00 3,296 -1.58 0.0044
2025-01-22 2024-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 38,795 1,654 4.45 3,348 -17.70 0.0041
2024-10-11 2024-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL COM G7997R103 37,141 0 0.00 4,068 6.08 0.0052
2024-07-11 2024-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL COM G7997R103 37,141 0 0.00 3,836 11.00 0.0051
2024-05-15 2024-03-31 13F/A-1 SEAGATE TECHNOLO COM G7997R103 37,141 0 0.00 3,456 8.99 0.0302
2024-12-06 2023-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 37,141 0 0.00 3,171 29.44 0.0051
2024-12-06 2023-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 37,141 -43,696 -54.05 2,449 -51.03 0.0042
2024-12-06 2023-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 80,837 -28,860 -26.31 5,001 -31.05 0.0085
2024-12-06 2023-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 109,697 -893,921 -89.07 7,253 -86.26 0.0143
2024-12-06 2022-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 1,003,618 -114,148 -10.21 52,800 -11.26 0.1161
2024-12-06 2022-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 1,117,766 43,004 4.00 59,499 -22.51 0.1412
2024-12-06 2022-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 1,074,762 0 0.00 76,781 -20.53 0.1733
2024-12-06 2022-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 1,074,762 -32,383 -2.92 96,621 -23.30 0.1792
2024-12-06 2021-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 1,107,145 -6,369 -0.57 125,971 37.09 0.2106
2024-12-06 2021-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 1,113,514 -102,452 -8.43 91,887 -14.06 0.1716
2024-12-06 2021-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 1,215,966 -586,749 -32.55 106,920 -22.72 0.2005
2024-12-06 2021-03-31 13F SEAGATE TECHNOLOGY SHS G7945M107 1,802,715 1,802,715 138,358 0.2874
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.