Seagate Technology Holdings plc
DE ˙ DB ˙ IE00BKVD2N49
802,00 € ↓ -10,00 (-1,23%)
2026-06-04
DEL PRIS
SecurityDE:847 / Seagate Technology Holdings plc
InstitutionHolocene Advisors, LP
Latest Disclosed Ownership1,087,617 shares
Latest Disclosed Value $ 426,084,836
Holocene Advisors, LP reports 43.27% increase in ownership of 847 / Seagate Technology Holdings plc

On May 15, 2026 - Holocene Advisors, LP filed a 13F-HR form disclosing ownership of 1,087,617 shares of Seagate Technology Holdings plc (DE:847) valued at $364,351,695 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 759,114 shares of Seagate Technology Holdings plc. This represents a change in shares of 43.27% during the quarter. The current value of the position is $872,268,834 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)
2026-05-15 2026-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 1,087,617 328,503 43.27 426,085 103.82 1.0277
2026-02-17 2025-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 759,114 571,106 303.77 209,052 371.04 0.4390
2025-11-14 2025-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 188,008 -40,405 -17.69 44,381 34.63 0.1011
2025-08-14 2025-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 228,413 -202,934 -47.05 32,967 -10.03 0.0804
2025-05-15 2025-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 431,347 -158,670 -26.89 36,643 -28.05 0.1069
2025-02-14 2024-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 590,017 150,238 34.16 50,924 5.72 0.1631
2024-11-14 2024-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 439,779 50,777 13.05 48,169 19.90 0.1945
2024-08-14 2024-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 389,002 0 0.00 40,172 10.98 0.1677
2024-05-15 2024-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 389,002 -1,907,398 -83.06 36,197 -81.54 0.1329
2024-02-14 2023-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 2,296,400 703,869 44.20 196,044 86.66 0.7640
2023-11-14 2023-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 1,592,531 -313,394 -16.44 105,027 -10.93 0.4598
2023-08-14 2023-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 1,905,925 -1,165,783 -37.95 117,920 -41.94 0.5033
2023-05-15 2023-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 3,071,708 529,052 20.81 203,101 51.83 0.9984
2023-02-14 2022-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 2,542,656 937,373 58.39 133,769 56.55 0.8159
2022-11-14 2022-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 1,605,283 -404,572 -20.13 85,449 -40.49 0.5460
2022-08-15 2022-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 2,009,855 698,705 53.29 143,584 21.81 0.8672
2022-05-16 2022-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 1,311,150 -439,997 -25.13 117,872 -40.42 0.6142
2022-02-14 2021-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 1,751,147 1,751,147 197,845 1.0298
2021-11-15 2021-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 0 -4,127 -100.00 0 -100.00
2021-08-16 2021-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 4,127 -36,812 -89.92 363 -88.45 0.0020
2021-05-17 2021-03-31 13F SEAGATE TECHNOLOGY SHS G7945M107 40,939 40,939 3,142 0.0197
2021-02-16 2020-12-31 13F SEAGATE TECHNOLOGY SHS G7945M107 0 -48,962 -100.00 0 -100.00
2020-11-16 2020-09-30 13F SEAGATE TECHNOLOGY SHS G7945M107 48,962 48,962 2,412 0.0183
2020-08-14 2020-06-30 13F SEAGATE TECHNOLOGY SHS G7945M107 0 -9,933 -100.00 0 -100.00
2020-05-15 2020-03-31 13F SEAGATE TECHNOLOGY SHS G7945M107 9,933 9,933 485 0.0052
2019-11-14 2019-09-30 13F SEAGATE TECHNOLOGY SHS G7945M107 0 -11,499 -100.00 0 -100.00
2019-08-14 2019-06-30 13F SEAGATE TECHNOLOGY SHS G7945M107 11,499 -444,072 -97.48 542 -97.52 0.0069
2019-05-15 2019-03-31 13F SEAGATE TECHNOLOGY SHS G7945M107 455,571 455,571 21,817 0.3339
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.