Seagate Technology Holdings plc
US ˙ NasdaqGS ˙ IE00BKVD2N49

SecuritySTX / Seagate Technology Holdings plc
InstitutionTrexquant Investment LP
Latest Disclosed Ownership45,493 shares
Latest Disclosed Value $ 17,822,338
Trexquant Investment LP ownership in STX / Seagate Technology Holdings plc

On May 15, 2026 - Trexquant Investment LP filed a 13F-HR form disclosing ownership of 45,493 shares of Seagate Technology Holdings plc (US:STX) valued at $17,822,338 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 0 shares of Seagate Technology Holdings plc. The current value of the position is $38,553,953 USD.

Trexquant Investment LP has a history of taking positions in derivatives of the underlying security (STX) in the form of stock options. The firm currently holds call options representing 1,000 of underlying shares valued at $391,760 USD and put options representing 1,400 of underlying shares valued at $548,464 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

STX / Seagate Technology Holdings plc Historical Put/Call Ratio
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 45,493 45,493 17,822 0.1281
2026-02-17 2025-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 0 -73,688 -100.00 0 -100.00
2025-11-14 2025-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 73,688 65,207 768.86 17,395 1,321.08 0.1791
2025-08-12 2025-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 8,481 2,239 35.87 1,224 130.94 0.0138
2025-05-14 2025-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 6,242 -183,751 -96.71 530 -96.77 0.0062
2025-02-12 2024-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 189,993 95,969 102.07 16,398 59.23 0.1911
2024-11-12 2024-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 94,024 94,024 10,298 0.1304
2024-08-13 2024-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 0 -109,431 -100.00 0 -100.00
2024-05-14 2024-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 109,431 72,774 198.53 10,183 225.41 0.2030
2024-02-09 2023-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 36,657 15,984 77.32 3,129 129.57 0.0704
2023-11-13 2023-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 20,673 20,673 1,363 0.0342
2023-02-13 2022-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 0 -66,109 -100.00 0 -100.00
2022-11-14 2022-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 66,109 62,144 1,567.31 3,519 1,143.46 0.1237
2022-08-11 2022-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 3,965 -15,089 -79.19 283 -83.48 0.0127
2022-05-13 2022-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 19,054 -9,122 -32.38 1,713 -46.18 0.0805
2022-02-14 2021-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 28,176 28,176 3,183 0.1966
2021-05-13 2021-03-31 13F SEAGATE TECHNOLOGY SHS G7945M107 0 -98,116 -100.00 0 -100.00
2021-02-11 2020-12-31 13F SEAGATE TECHNOLOGY SHS G7945M107 98,116 15,550 18.83 6,099 49.93 0.6460
2020-11-06 2020-09-30 13F SEAGATE TECHNOLOGY SHS G7945M107 82,566 12,500 17.84 4,068 19.93 0.2618
2020-08-07 2020-06-30 13F SEAGATE TECHNOLOGY SHS G7945M107 70,066 70,066 3,392 0.2355
2019-05-13 2019-03-31 13F SEAGATE TECHNOLOGY SHS G7945M107 0 -119,038 -100.00 0 -100.00
2019-02-13 2018-12-31 13F SEAGATE TECHNOLOGY SHS G7945M107 119,038 119,038 4,594 0.2872
2018-11-09 2018-09-30 13F SEAGATE TECHNOLOGY SHS G7945M107 0 -35,179 -100.00 0 -100.00
2018-08-07 2018-06-30 13F SEAGATE TECHNOLOGY SHS G7945M107 35,179 -26,946 -43.37 1,987 -45.35 0.1377
2018-05-03 2018-03-31 13F SEAGATE TECHNOLOGY SHS G7945M107 62,125 41,588 202.50 3,636 323.28 0.2534
2018-02-08 2017-12-31 13F SEAGATE TECHNOLOGY SHS G7945M107 20,537 20,537 859 0.0943
2017-08-01 2017-06-30 13F SEAGATE TECHNOLOGY SHS G7945M107 0 -27,660 -100.00 0 -100.00
2017-05-08 2017-03-31 13F SEAGATE TECHNOLOGY SHS G7945M107 27,660 -8,040 -22.52 1,270 -6.82 0.1629
2017-02-10 2016-12-31 13F SEAGATE TECHNOLOGY SHS G7945M107 35,700 18,354 105.81 1,363 103.74 0.2156
2016-11-10 2016-09-30 13F SEAGATE TECHNOLOGY SHS G7945M107 17,346 17,346 669 0.1494
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Call 1,000 392 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Put 1,400 548 n/a n/a n/a
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.