Seagate Technology Holdings plc
US ˙ NasdaqGS ˙ IE00BKVD2N49

SecuritySTX / Seagate Technology Holdings plc
InstitutionDavis R M Inc
Latest Disclosed Ownership1,157 shares
Latest Disclosed Value $ 454,220
Davis R M Inc ownership in STX / Seagate Technology Holdings plc

On May 13, 2026 - Davis R M Inc filed a 13F-HR form disclosing ownership of 1,157 shares of Seagate Technology Holdings plc (US:STX) valued at $453,266 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 1,157 shares of Seagate Technology Holdings plc. This represents a change in shares of 0.00% during the quarter. The current value of the position is $1,088,378 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)
2026-05-13 2026-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 1,157 0 0.00 454 42.77 0.0081
2026-02-12 2025-12-31 13F Seagate Technology Holdings COM G7997R103 1,157 0 0.00 319 16.48 0.0055
2025-11-12 2025-09-30 13F Seagate Technology Holdings COM G7997R103 1,157 1,157 273 0.0048
2022-08-08 2022-06-30 13F Seagate Technology Holdings COM G7997R103 0 -2,668 -100.00 0 -100.00
2022-05-05 2022-03-31 13F Seagate Technology Holdings COM G7997R103 2,668 -419 -13.57 240 -31.23 0.0057
2022-02-08 2021-12-31 13F Seagate Technology Holdings COM G7997R103 3,087 0 0.00 349 36.86 0.0078
2021-11-08 2021-09-30 13F Seagate Technology Holdings COM G7997R103 3,087 -100 -3.14 255 -8.93 0.0063
2021-08-12 2021-06-30 13F Seagate Technology Holdings COM G7997R103 3,187 0 0.00 280 14.29 0.0070
2021-05-10 2021-03-31 13F Seagate Technology COM G7945M107 3,187 -867 -21.39 245 -2.78 0.0067
2021-01-27 2020-12-31 13F Seagate Technology COM G7945M107 4,054 -75 -1.82 252 24.14 0.0072
2020-12-01 2020-09-30 13F Seagate Technology COM G7945M107 4,129 4,129 203 0.0066
2020-07-20 2020-06-30 13F Seagate Technology COM G7945M107 0 -4,324 -100.00 0 -100.00
2020-04-24 2020-03-31 13F Seagate Technology COM G7945M107 4,324 -964 -18.23 211 -33.02 0.0088
2020-01-23 2019-12-31 13F Seagate Technology COM G7945M107 5,288 -101 -1.87 315 8.62 0.0103
2019-10-24 2019-09-30 13F Seagate Technology COM G7945M107 5,389 327 6.46 290 21.34 0.0102
2019-07-31 2019-06-30 13F Seagate Technology COM G7945M107 5,062 0 0.00 239 -1.24 0.0085
2019-04-29 2019-03-31 13F Seagate Technology COM G7945M107 5,062 5,062 242 0.0090
2019-01-18 2018-12-31 13F Seagate Technology COM G7945M107 0 -5,210 -100.00 0 -100.00
2018-10-17 2018-09-30 13F Seagate Technology COM G7945M107 5,210 148 2.92 247 -13.64 0.0090
2018-07-19 2018-06-30 13F SEAGATE TECHNOLOGY COM G7945M107 5,062 0 0.00 286 -3.38 0.0111
2018-04-19 2018-03-31 13F SEAGATE TECHNOLOGY COM G7945M107 5,062 -1,500 -22.86 296 7.64 0.0118
2018-01-16 2017-12-31 13F SEAGATE TECHNOLOGY COM G7945M107 6,562 6,562 275 0.0108
2017-10-24 2017-09-30 13F SEAGATE TECHNOLOGY COM G7945M107 0 -6,000 -100.00 0 -100.00
2017-07-31 2017-06-30 13F SEAGATE TECHNOLOGY COM G7945M107 6,000 -2,000 -25.00 232 -36.78 0.0098
2017-05-03 2017-03-31 13F SEAGATE TECHNOLOGY COM G7945M107 8,000 -4,000 -33.33 367 -19.87 0.0166
2017-01-18 2016-12-31 13F SEAGATE TECHNOLOGY COM G7945M107 12,000 12,000 458 0.0219
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.