Seagate Technology Holdings plc
US ˙ NasdaqGS ˙ IE00BKVD2N49

SecuritySTX / Seagate Technology Holdings plc
InstitutionSynovus Financial Corp
Latest Disclosed Ownership3,188 shares
Latest Disclosed Value $ 752,589
Synovus Financial Corp reports 28.55% increase in ownership of STX / Seagate Technology Holdings plc

On November 7, 2025 - Synovus Financial Corp filed a 13F-HR form disclosing ownership of 3,188 shares of Seagate Technology Holdings plc (US:STX) valued at $752,559 USD as of September 30, 2025. The entity filed a previous 13F-HR on August 14, 2025 disclosing 2,480 shares of Seagate Technology Holdings plc. This represents a change in shares of 28.55% during the quarter. The current value of the position is $2,701,734 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)
2025-11-07 2025-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 3,188 708 28.55 753 110.06 0.0086
2025-08-14 2025-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 2,480 -148 -5.63 358 60.54 0.0044
2025-05-14 2025-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 2,628 1 0.04 223 -1.33 0.0029
2025-02-13 2024-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 2,627 -1,427 -35.20 227 -48.98 0.0029
2024-11-25 2024-09-30 13F/A-1 SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 4,054 1,087 36.64 444 44.77 0.0051
2024-11-14 2024-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 4,054 1,087 444 0.0026
2024-08-13 2024-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 2,967 25 0.85 306 12.09 0.0040
2024-05-14 2024-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 2,942 1 0.03 274 8.76 0.0036
2024-02-14 2023-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 2,941 2,941 251 0.0036
2023-11-13 2023-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 0 -3,507 -100.00 0 -100.00
2023-08-08 2023-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 3,507 1 0.03 217 -6.06 0.0024
2023-05-11 2023-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 3,506 -499 -12.46 232 10.00 0.0026
2023-02-06 2022-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 4,005 2 0.05 211 -1.41 0.0024
2022-10-27 2022-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 4,003 1,051 35.60 213 0.95 0.0026
2022-08-10 2022-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 2,952 100 3.51 211 -17.90 0.0025
2022-05-12 2022-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 2,852 -649 -18.54 257 -34.77 0.0027
2022-02-14 2021-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 3,501 1 0.03 394 36.33 0.0039
2021-11-08 2021-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 3,500 -105 -2.91 289 -8.25 0.0031
2021-08-11 2021-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 3,605 106 3.03 315 17.98 0.0031
2021-05-11 2021-03-31 13F SEAGATE TECHNOLOGY SHS G7945M107 3,499 -654 -15.75 267 4.30 0.0030
2021-02-11 2020-12-31 13F SEAGATE TECHNOLOGY SHS G7945M107 4,153 4,153 256 0.0029
2020-11-09 2020-09-30 13F SEAGATE TECHNOLOGY SHS G7945M107 0 -6,101 -100.00 0 -100.00
2020-08-10 2020-06-30 13F SEAGATE TECHNOLOGY SHS G7945M107 6,101 -1,619 -20.97 294 -22.43 0.0043
2020-04-24 2020-03-31 13F SEAGATE TECHNOLOGY SHS G7945M107 7,720 813 11.77 379 -7.79 0.0053
2020-02-06 2019-12-31 13F SEAGATE TECHNOLOGY SHS G7945M107 6,907 -1,024 -12.91 411 -3.75 0.0056
2019-11-01 2019-09-30 13F SEAGATE TECHNOLOGY SHS G7945M107 7,931 57 0.72 427 14.78 0.0064
2019-08-08 2019-06-30 13F SEAGATE TECHNOLOGY SHS G7945M107 7,874 -3,408 -30.21 372 -31.24 0.0056
2019-05-09 2019-03-31 13F SEAGATE TECHNOLOGY SHS G7945M107 11,282 -475 -4.04 541 19.16 0.0088
2019-02-07 2018-12-31 13F SEAGATE TECHNOLOGY SHS G7945M107 11,757 25 0.21 454 -18.20 0.0082
2018-11-01 2018-09-30 13F SEAGATE TECHNOLOGY SHS G7945M107 11,732 -254 -2.12 555 -18.14 0.0088
2018-08-01 2018-06-30 13F SEAGATE TECHNOLOGY SHS G7945M107 11,986 -409 -3.30 678 -6.61 0.0113
2018-05-07 2018-03-31 13F SEAGATE TECHNOLOGY SHS G7945M107 12,395 780 6.72 726 49.08 0.0123
2018-02-09 2017-12-31 13F SEAGATE TECHNOLOGY SHS G7945M107 11,615 11,615 487 0.0085
2017-08-09 2017-06-30 13F SEAGATE TECHNOLOGY SHS G7945M107 0 -3,734 -100.00 0 -100.00
2017-05-15 2017-03-31 13F SEAGATE TECHNOLOGY SHS G7945M107 3,734 471 14.43 172 37.60 0.0036
2017-02-10 2016-12-31 13F SEAGATE TECHNOLOGY SHS G7945M107 3,263 957 41.50 125 38.89 0.0028
2016-10-28 2016-09-30 13F SEAGATE TECHNOLOGY SHS G7945M107 2,306 622 36.94 90 119.51 0.0021
2016-08-04 2016-06-30 13F SEAGATE TECHNOLOGY SHS G7945M107 1,684 416 32.81 41 -6.82 0.0009
2016-05-09 2016-03-31 13F SEAGATE TECHNOLOGY SHS G7945M107 1,268 480 60.91 44 57.14 0.0011
2016-02-08 2015-12-31 13F SEAGATE TECHNOLOGY SHS G7945M107 788 -28 -3.43 28 -24.32 0.0007
2015-11-03 2015-09-30 13F SEAGATE TECHNOLOGY SHS G7945M107 816 573 235.80 37 208.33 0.0010
2015-08-06 2015-06-30 13F SEAGATE TECHNOLOGY SHS G7945M107 243 1 0.41 12 -7.69 0.0003
2015-05-08 2015-03-31 13F SEAGATE TECHNOLOGY SHS G7945M107 242 74 44.05 13 18.18 0.0003
2015-02-09 2014-12-31 13F SEAGATE TECHNOLOGY SHS G7945M107 168 168 11 0.0003
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.