Seagate Technology Holdings plc
US ˙ NasdaqGS ˙ IE00BKVD2N49

SecuritySTX / Seagate Technology Holdings plc
InstitutionWetherby Asset Management Inc
Latest Disclosed Ownership5,930 shares
Latest Disclosed Value $ 1,399,836
Wetherby Asset Management Inc reports 3.26% increase in ownership of STX / Seagate Technology Holdings plc

On November 14, 2025 - Wetherby Asset Management Inc filed a 13F-HR form disclosing ownership of 5,930 shares of Seagate Technology Holdings plc (US:STX) valued at $1,399,836 USD as of September 30, 2025. The entity filed a previous 13F-HR on August 14, 2025 disclosing 5,743 shares of Seagate Technology Holdings plc. This represents a change in shares of 3.26% during the quarter. The current value of the position is $5,025,497 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)
2025-11-14 2025-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 5,930 187 3.26 1,400 68.96 0.0572
2025-08-14 2025-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 5,743 -6 -0.10 829 66.94 0.0369
2025-02-14 2024-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 5,749 -493 -7.90 496 -27.38 0.0238
2024-11-14 2024-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 6,242 -82 -1.30 684 4.59 0.0313
2024-08-14 2024-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 6,324 -279 -4.23 653 6.35 0.0308
2024-05-15 2024-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 6,603 19 0.29 614 9.25 0.0293
2024-02-14 2023-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 6,584 39 0.60 562 30.39 0.0293
2023-11-14 2023-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 6,545 373 6.04 432 13.12 0.0245
2023-08-14 2023-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 6,172 -334 -5.13 382 -11.40 0.0206
2023-05-12 2023-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 6,506 1,338 25.89 430 58.67 0.0252
2023-02-14 2022-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 5,168 5,168 272 0.0175
2022-11-14 2022-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 0 -5,077 -100.00 0 -100.00
2022-08-15 2022-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 5,077 223 4.59 363 -16.74 0.0248
2022-05-16 2022-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 4,854 -1,970 -28.87 436 -43.45 0.0250
2022-02-14 2021-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 6,824 -314 -4.40 771 30.90 0.0433
2021-11-15 2021-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 7,138 1,621 29.38 589 21.44 0.0363
2021-08-16 2021-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 5,517 470 9.31 485 25.00 0.0296
2021-05-14 2021-03-31 13F SEAGATE TECHNOLOGY SHS G7945M107 5,047 -185 -3.54 388 19.38 0.0296
2021-02-11 2020-12-31 13F SEAGATE TECHNOLOGY SHS G7945M107 5,232 5,156 6,784.21 325 8,025.00 0.0220
2020-12-16 2020-09-30 13F/A-01 SEAGATE TECHNOLOGY SHS G7945M107 4,831 4,831 238 0.0218
2020-12-16 2020-09-30 13F/A-02 SEAGATE TECHNOLOGY SHS G7945M107 76 76 -98.43 4 -98.32 0.0120
2020-11-13 2020-09-30 13F SEAGATE TECHNOLOGY SHS G7945M107 5,000 5,000 246 15,647.7600
2015-05-08 2015-03-31 13F SEAGATE TECHNOLOGY SHS G7945M107 0 -3,643 -100.00 0 -100.00
2015-02-12 2014-12-31 13F SEAGATE TECHNOLOGY SHS G7945M107 3,643 -155 -4.08 242 11.01 0.0609
2014-11-03 2014-09-30 13F SEAGATE TECHNOLOGY SHS G7945M107 3,798 23 0.61 218 2.83 0.0608
2014-01-29 2013-12-31 13F SEAGATE TECHNOLOGY SHS G7945M107 3,775 3,775 212 0.0605
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.