Seagate Technology Holdings plc
US ˙ NasdaqGS ˙ IE00BKVD2N49

SecuritySTX / Seagate Technology Holdings plc
InstitutionColdstream Capital Management Inc
Latest Disclosed Ownership7,932 shares
Latest Disclosed Value $ 3,108,537
Coldstream Capital Management Inc reports 8.99% decrease in ownership of STX / Seagate Technology Holdings plc

On May 8, 2026 - Coldstream Capital Management Inc filed a 13F-HR form disclosing ownership of 7,932 shares of Seagate Technology Holdings plc (US:STX) valued at $3,107,440 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 8,716 shares of Seagate Technology Holdings plc. This represents a change in shares of -8.99% during the quarter. The current value of the position is $7,461,553 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)
2026-05-08 2026-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 7,932 -784 -8.99 3,109 29.45 0.0334
2026-02-09 2025-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 8,716 163 1.91 2,402 18.86 0.0310
2025-11-19 2025-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 8,553 3,667 75.05 2,020 186.12 0.0272
2025-08-12 2025-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 4,886 2,378 94.82 707 231.46 0.0116
2025-05-13 2025-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 2,508 2,508 213 0.0045
2025-02-14 2024-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 0 -2,370 -100.00 0 -100.00
2024-11-18 2024-09-30 13F/A-1 SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 2,370 -208 -8.07 258 -3.38 0.0056
2024-11-18 2024-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 2,370 258
2024-08-07 2024-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 2,578 90 3.62 266 15.15 0.0065
2024-05-14 2024-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 2,488 13 0.53 232 9.48 0.0059
2024-02-09 2023-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 2,475 2,475 211 0.0059
2022-05-11 2022-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 0 -2,355 -100.00 0 -100.00
2022-02-11 2021-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 2,355 2,355 266 0.0084
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.