Seagate Technology Holdings plc
DE ˙ XTRA ˙ IE00BKVD2N49
38,91 € ↓ -0,56 (-1,41%)
2017-05-15
DEL PRIS
SecurityDE:STT / Seagate Technology Holdings plc
InstitutionFred Alger Management, Llc
Latest Disclosed Ownership62,559 shares
Latest Disclosed Value $ 24,508,114
Fred Alger Management, Llc reports 19.50% increase in ownership of STT / Seagate Technology Holdings plc

On May 15, 2026 - Fred Alger Management, Llc filed a 13F-HR form disclosing ownership of 62,559 shares of Seagate Technology Holdings plc (DE:STT) valued at $24,508,114 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 52,350 shares of Seagate Technology Holdings plc. This represents a change in shares of 19.50% during the quarter. The current value of the position is $2,434,171 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 Holdings Equity G7997R103 62,559 10,209 19.50 24,508 70.01 0.0685
2026-02-17 2025-12-31 13F Seagate Technology Holdings Equity G7997R103 52,350 10,833 26.09 14,417 46.71 0.0565
2025-11-14 2025-09-30 13F Seagate Technology Holdings Equity G7997R103 41,517 41,517 9,827 0.0382
2016-08-15 2016-06-30 13F SEAGATE TECHNOLOGY Common G7945M107 0 -350,211 -100.00 0 -100.00
2016-05-16 2016-03-31 13F SEAGATE TECHNOLOGY Common G7945M107 350,211 313,957 865.99 12,065 807.83 0.0611
2016-02-16 2015-12-31 13F SEAGATE TECHNOLOGY Common G7945M107 36,254 -1,609 -4.25 1,329 -21.64 0.0065
2015-11-16 2015-09-30 13F SEAGATE TECHNOLOGY Common G7945M107 37,863 -215 -0.56 1,696 -6.25 0.0093
2015-08-14 2015-06-30 13F SEAGATE TECHNOLOGY Common G7945M107 38,078 15 0.04 1,809 -8.64 0.0081
2015-05-15 2015-03-31 13F SEAGATE TECHNOLOGY Common G7945M107 38,063 62 0.16 1,980 -21.65 0.0089
2015-02-17 2014-12-31 13F SEAGATE TECHNOLOGY Common G7945M107 38,001 808 2.17 2,527 18.64 0.0122
2014-11-14 2014-09-30 13F SEAGATE TECHNOLOGY Common G7945M107 37,193 154 0.42 2,130 1.19 0.0104
2014-08-14 2014-06-30 13F SEAGATE TECHNOLOGY Common G7945M107 37,039 -15,840 -29.96 2,105 -29.12 0.0104
2014-05-15 2014-03-31 13F SEAGATE TECHNOLOGY Common G7945M107 52,879 17,916 51.24 2,970 51.22 0.0147
2014-02-14 2013-12-31 13F SEAGATE TECHNOLOGY Common G7945M107 34,963 8,728 33.27 1,964 71.08 0.0100
2013-11-14 2013-09-30 13F SEAGATE TECHNOLOGY Common G7945M107 26,235 26,109 20,721.43 1,148 19,033.33 0.0064
2013-08-14 2013-06-30 13F SEAGATE TECHNOLOGY Common G7945M107 126 126 6 0.0000
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.