Seagate Technology Holdings plc
DE ˙ XTRA ˙ IE00BKVD2N49
38,91 € ↓ -0,56 (-1,41%)
2017-05-15
DEL PRIS
SecurityDE:STT / Seagate Technology Holdings plc
InstitutionRhumbline Advisers
Latest Disclosed Ownership229,211 shares
Latest Disclosed Value $ 89,795,614
Rhumbline Advisers reports 3.12% decrease in ownership of STT / Seagate Technology Holdings plc

On May 12, 2026 - Rhumbline Advisers filed a 13F-HR form disclosing ownership of 229,211 shares of Seagate Technology Holdings plc (DE:STT) valued at $89,795,614 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 236,597 shares of Seagate Technology Holdings plc. This represents a change in shares of -3.12% during the quarter. The current value of the position is $8,918,600 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)
2026-05-12 2026-03-31 13F SEAGATE TECHNOLOGY PLC SHS COM G7997R103 229,211 -7,386 -3.12 89,796 37.82 0.0768
2026-02-13 2025-12-31 13F SEAGATE TECHNOLOGY PLC SHS COM G7997R103 236,597 -1,921 -0.81 65,156 15.72 0.0527
2025-11-06 2025-09-30 13F SEAGATE TECHNOLOGY PLC SHS COM G7997R103 238,518 -8,350 -3.38 56,304 58.02 0.0452
2025-08-12 2025-06-30 13F SEAGATE TECHNOLOGY PLC SHS COM G7997R103 246,868 1,134 0.46 35,630 70.68 0.0305
2025-05-29 2025-03-31 13F/A-1 SEAGATE TECHNOLOGY PLC SHS COM G7997R103 245,734 25,869 11.77 20,875 10.01 0.0195
2025-04-08 2025-03-31 13F SEAGATE TECHNOLOGY PLC SHS COM G7997R103 245,734 25,869 20,875 0.0195
2025-05-29 2024-12-31 13F/A-1 SEAGATE TECHNOLOGY PLC SHS COM G7997R103 219,865 -1,523 -0.69 18,976 -21.74 0.0170
2025-01-30 2024-12-31 13F SEAGATE TECHNOLOGY PLC SHS COM G7997R103 219,865 -1,523 18,976 0.0170
2024-11-12 2024-09-30 13F SEAGATE TECHNOLOGY PLC SHS COM G7997R103 221,388 4,791 2.21 24,249 8.41 0.0219
2024-08-01 2024-06-30 13F SEAGATE TECHNOLOGY PLC SHS COM G7997R103 216,597 31 0.01 22,368 11.00 0.0210
2024-05-09 2024-03-31 13F SEAGATE TECHNOLOGY PLC SHS COM G7997R103 216,566 21,794 11.19 20,151 21.19 0.0194
2024-02-08 2023-12-31 13F SEAGATE TECHNOLOGY PLC SHS COM G7997R103 194,772 -2,132 -1.08 16,628 28.05 0.0174
2023-11-09 2023-09-30 13F SEAGATE TECHNOLOGY PLC SHS COM G7997R103 196,904 -5,548 -2.74 12,986 3.67 0.0151
2023-08-08 2023-06-30 13F SEAGATE TECHNOLOGY PLC SHS COM G7997R103 202,452 2,576 1.29 12,526 96,246.15 0.0140
2023-05-11 2023-03-31 13F SEAGATE TECHNOLOGY PLC SHS COM G7997R103 199,876 4,006 2.05 13 -99.87 0.0163
2023-02-14 2022-12-31 13F SEAGATE TECHNOLOGY PLC SHS COM G7997R103 195,870 6,719 3.55 10,305 2.34 0.0139
2022-11-10 2022-09-30 13F SEAGATE TECHNOLOGY PLC SHS COM G7997R103 189,151 -1,492 -0.78 10,069 -26.07 0.0150
2022-08-11 2022-06-30 13F SEAGATE TECHNOLOGY PLC SHS COM G7997R103 190,643 7,760 4.24 13,620 -17.16 0.0199
2022-05-12 2022-03-31 13F SEAGATE TECHNOLOGY PLC SHS COM G7997R103 182,883 1,037 0.57 16,441 -19.98 0.0212
2022-02-10 2021-12-31 13F SEAGATE TECHNOLOGY PLC SHS COM G7997R103 181,846 -11,057 -5.73 20,545 29.07 0.0252
2021-11-12 2021-09-30 13F SEAGATE TECHNOLOGY PLC SHS COM G7997R103 192,903 15,508 8.74 15,918 2.05 0.0215
2021-08-05 2021-06-30 13F SEAGATE TECHNOLOGY PLC SHS COM G7997R103 177,395 -3,588 -1.98 15,598 12.30 0.0205
2021-05-06 2021-03-31 13F SEAGATE TECHNOLOGY PLC SHS COM G7945M107 180,983 -74,970 -29.29 13,890 -12.70 0.0189
2021-02-10 2020-12-31 13F SEAGATE TECHNOLOGY PLC SHS COM G7945M107 255,953 -41,418 -13.93 15,910 8.59 0.0220
2020-11-12 2020-09-30 13F SEAGATE TECHNOLOGY PLC SHS COM G7945M107 297,371 -14,780 -4.73 14,651 -3.04 0.0230
2020-08-13 2020-06-30 13F SEAGATE TECHNOLOGY PLC SHS COM G7945M107 312,151 14,877 5.00 15,111 4.16 0.0252
2020-05-06 2020-03-31 13F SEAGATE TECHNOLOGY PLC SHS COM G7945M107 297,274 12,473 4.38 14,507 -14.39 0.0304
2020-02-05 2019-12-31 13F SEAGATE TECHNOLOGY PLC SHS COM G7945M107 284,801 12,265 4.50 16,946 15.59 0.0283
2019-10-23 2019-09-30 13F SEAGATE TECHNOLOGY PLC SHS COM G7945M107 272,536 890 0.33 14,660 14.53 0.0268
2019-08-14 2019-06-30 13F SEAGATE TECHNOLOGY PLC SHS COM G7945M107 271,646 21,205 8.47 12,800 6.72 0.0240
2019-05-01 2019-03-31 13F SEAGATE TECHNOLOGY PLC SHS COM G7945M107 250,441 -16,070 -6.03 11,994 16.62 0.0232
2019-01-31 2018-12-31 13F SEAGATE TECHNOLOGY PLC SHS COM G7945M107 266,511 -42 -0.02 10,285 -18.51 0.0224
2018-11-07 2018-09-30 13F SEAGATE TECHNOLOGY PLC SHS COM G7945M107 266,553 -22,742 -7.86 12,621 -22.74 0.0244
2018-08-06 2018-06-30 13F SEAGATE TECHNOLOGY PLC SHS COM G7945M107 289,295 25,331 9.60 16,336 5.76 0.0329
2018-05-02 2018-03-31 13F SEAGATE TECHNOLOGY PLC SHS COM G7945M107 263,964 -3,302 -1.24 15,447 38.14 0.0323
2018-02-09 2017-12-31 13F SEAGATE TECHNOLOGY PLC SHS COM G7945M107 267,266 -15,805 -5.58 11,182 19.10 0.0227
2017-11-06 2017-09-30 13F SEAGATE TECHNOLOGY PLC SHS COM G7945M107 283,071 -3,274 -1.14 9,389 -15.38 0.0204
2017-08-02 2017-06-30 13F SEAGATE TECHNOLOGY PLC SHS COM G7945M107 286,345 27,135 10.47 11,096 -6.80 0.0253
2017-05-02 2017-03-31 13F SEAGATE TECHNOLOGY PLC SHS COM G7945M107 259,210 18,509 7.69 11,906 29.58 0.0278
2017-01-27 2016-12-31 13F SEAGATE TECHNOLOGY PLC SHS COM G7945M107 240,701 20,420 9.27 9,188 8.20 0.0233
2016-11-08 2016-09-30 13F SEAGATE TECHNOLOGY PLC SHS COM G7945M107 220,281 3,210 1.48 8,492 60.59 0.0234
2016-08-11 2016-06-30 13F SEAGATE TECHNOLOGY PLC SHS COM G7945M107 217,071 4,370 2.05 5,288 -27.84 0.0157
2016-05-02 2016-03-31 13F SEAGATE TECHNOLOGY COM G7945M107 212,701 4,122 1.98 7,328 -4.17 0.0227
2016-02-03 2015-12-31 13F SEAGATE TECHNOLOGY COM G7945M107 208,579 -5,460 -2.55 7,647 -20.25 0.0246
2015-11-04 2015-09-30 13F SEAGATE TECHNOLOGY COM G7945M107 214,039 -16,740 -7.25 9,589 -12.53 0.0326
2015-08-04 2015-06-30 13F SEAGATE TECHNOLOGY COM G7945M107 230,779 -4,035 -1.72 10,962 -10.27 0.0349
2015-05-12 2015-03-31 13F SEAGATE TECHNOLOGY COM G7945M107 234,814 -19,670 -7.73 12,217 -27.81 0.0352
2015-02-06 2014-12-31 13F SEAGATE TECHNOLOGY COM G7945M107 254,484 -8,523 -3.24 16,923 12.36 0.0492
2014-11-12 2014-09-30 13F SEAGATE TECHNOLOGY COM G7945M107 263,007 -11,309 -4.12 15,062 -3.37 0.0452
2014-08-06 2014-06-30 13F SEAGATE TECHNOLOGY COM G7945M107 274,316 -2,285 -0.83 15,587 0.34 0.0457
2014-05-06 2014-03-31 13F SEAGATE TECHNOLOGY COM G7945M107 276,601 -11,630 -4.03 15,534 -4.03 0.0461
2014-02-03 2013-12-31 13F SEAGATE TECHNOLOGY COM G7945M107 288,231 -4,113 -1.41 16,187 26.59 0.0477
2013-11-05 2013-09-30 13F SEAGATE TECHNOLOGY COM G7945M107 292,344 5,011 1.74 12,787 -0.73 0.0396
2013-08-07 2013-06-30 13F SEAGATE TECHNOLOGY COM G7945M107 287,333 287,333 12,881 0.0414
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.