Seagate Technology Holdings plc
DE ˙ XTRA ˙ IE00BKVD2N49
38,91 € ↓ -0,56 (-1,41%)
2017-05-15
DEL PRIS
SecurityDE:STT / Seagate Technology Holdings plc
InstitutionLMR Partners LLP
Latest Disclosed Ownership136,954 shares
Latest Disclosed Value $ 53,653,099
LMR Partners LLP ownership in STT / Seagate Technology Holdings plc

On May 15, 2026 - LMR Partners LLP filed a 13F-HR form disclosing ownership of 136,954 shares of Seagate Technology Holdings plc (DE:STT) valued at $53,653,099 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 13,954 shares of Seagate Technology Holdings plc. This represents a change in shares of 881.47% during the quarter. The current value of the position is $5,328,880 USD.

LMR Partners LLP has a history of taking positions in derivatives of the underlying security (STT) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 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.

DE:STT / 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 136,954 123,000 881.47 53,653 1,296.49 0.1181
2026-02-17 2025-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 13,954 -26,046 -65.11 3,843 -59.31 0.0072
2025-11-14 2025-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 40,000 -386,523 -90.62 9,442 -84.66 0.0416
2025-08-14 2025-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 426,523 -163,031 -27.65 61,560 22.92 0.4407
2025-05-15 2025-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 589,554 493,458 513.51 50,083 503.83 0.4684
2025-02-14 2024-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 96,096 -186,812 -66.03 8,294 -73.23 0.0697
2024-11-07 2024-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 282,908 159,314 128.90 30,987 142.78 0.2468
2024-08-14 2024-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 123,594 67,698 121.11 12,764 145.40 0.1078
2024-05-15 2024-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 55,896 -158,649 -73.95 5,201 -71.60 0.0529
2024-02-14 2023-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 214,545 214,545 18,316 0.2092
2023-02-14 2022-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 0 -49,999 -100.00 0 -100.00
2022-11-14 2022-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 49,999 49,999 2,661 0.0489
2021-11-15 2021-09-30 13F SEAGATE TECHNOLOGY HOLDINGS PL ORD SHS G7997R103 0 -9,188 -100.00 0 -100.00
2021-08-16 2021-06-30 13F SEAGATE TECHNOLOGY HOLDINGS PL ORD SHS G7997R103 9,188 9,188 808 0.0122
2020-11-16 2020-09-30 13F SEAGATE TECHNOLOGY SHS G7945M107 0 -24,212 -100.00 0 -100.00
2020-08-14 2020-06-30 13F SEAGATE TECHNOLOGY SHS G7945M107 24,212 11,960 97.62 1,172 91.82 0.0292
2020-08-14 2020-03-31 13F/A-1 SEAGATE TECHNOLOGY SHS G7945M107 12,252 -29,124 -70.39 611 -75.18 0.0285
2020-05-15 2020-03-31 13F SEAGATE TECHNOLOGY SHS G7945M107 12,252 -29,124 611 634.9839
2020-02-14 2019-12-31 13F SEAGATE TECHNOLOGY COM G7945M107 41,376 17,947 76.60 2,462 95.40 0.0040
2019-11-14 2019-09-30 13F SEAGATE TECHNOLOGY COM G7945M107 23,429 -5,598 -19.29 1,260 -7.89 0.0623
2019-08-14 2019-06-30 13F SEAGATE TECHNOLOGY COM G7945M107 29,027 22,366 335.78 1,368 328.84 0.0498
2019-05-15 2019-03-31 13F SEAGATE TECHNOLOGY COM G7945M107 6,661 6,661 -77.05 319 -76.68 0.0163
2019-02-14 2018-12-31 13F SEAGATE TECHNOLOGY COM G7945M107 0 -4,952 -100.00 0 -100.00
2018-11-14 2018-09-30 13F SEAGATE TECHNOLOGY COM G7945M107 4,952 -11,690 -70.24 234 -75.11 0.0149
2018-08-03 2018-06-30 13F SEAGATE TECHNOLOGY COM G7945M107 16,642 16,642 236.07 940 301.71 0.0487
2017-11-09 2017-09-30 13F SEAGATE TECHNOLOGY COM G7945M107 0 -24,762 -100.00 0 -100.00
2017-08-03 2017-06-30 13F SEAGATE TECHNOLOGY COM G7945M107 24,762 19,718 390.92 959 313.36 0.0602
2017-05-11 2017-03-31 13F SEAGATE TECHNOLOGY COM G7945M107 5,044 -19,204 -79.20 232 -74.95 0.0223
2017-02-07 2016-12-31 13F SEAGATE TECHNOLOGY COM G7945M107 24,248 15,299 170.96 926 168.41 0.1422
2016-11-04 2016-09-30 13F/A-1 SEAGATE TECHNOLOGY COM G7945M107 8,949 8,949 -63.09 345 -62.74 0.0328
2016-11-01 2016-09-30 13F SEAGATE TECHNOLOGY COM G7945M107 8,949 345
2016-02-03 2015-12-31 13F SEAGATE TECHNOLOGY COM G7945M107 0 -50,688 -100.00 0 -100.00
2015-11-05 2015-09-30 13F SEAGATE TECHNOLOGY COM G7945M107 50,688 32,356 176.50 2,271 160.73 0.2483
2015-08-10 2015-06-30 13F SEAGATE TECHNOLOGY COM G7945M107 18,332 -7,297 -28.47 871 -34.66 0.1064
2015-04-20 2015-03-31 13F SEAGATE TECHNOLOGY COM G7945M107 25,629 -16,580 -39.28 1,333 -52.49 0.1843
2015-01-20 2014-12-31 13F SEAGATE TECHNOLOGY COM G7945M107 42,209 42,209 64.69 2,806 110.50 0.3667
2014-10-20 2014-09-30 13F SEAGATE TECHNOLOGY COM G7945M107 0 -35,934 -100.00 0 -100.00
2014-07-10 2014-06-30 13F SEAGATE TECHNOLOGY COM G7945M107 35,934 35,934 2,042 0.1698
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
(%)
2026-02-17 2025-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-11-14 2025-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Call 3,000 -93.29 708 -89.02 n/a n/a n/a
2025-08-14 2025-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Call 44,700 -62.28 6,452 -35.91 n/a n/a n/a
2025-05-15 2025-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Call 118,500 364.71 10,067 357.55 n/a n/a n/a
2025-02-14 2024-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Call 25,500 0.00 2,201 -21.23 n/a n/a n/a
2024-11-07 2024-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Call 25,500 0.00 2,793 6.08 n/a n/a n/a
2024-08-14 2024-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Call 25,500 0.00 2,633 11.00 n/a n/a n/a
2024-05-15 2024-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Call 25,500 2,373 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 0 -100.00 0 -100.00 n/a n/a n/a
2026-02-17 2025-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Put 51,700 0.00 14,238 16.66 n/a n/a n/a
2025-11-14 2025-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Put 51,700 -44.17 12,204 -8.68 n/a n/a n/a
2025-08-14 2025-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Put 92,600 -76.70 13,365 -60.41 n/a n/a n/a
2025-05-15 2025-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Put 397,400 197.23 33,759 192.56 n/a n/a n/a
2025-02-14 2024-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Put 133,700 296.74 11,540 212.63 n/a n/a n/a
2024-11-07 2024-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Put 33,700 0.00 3,691 6.06 n/a n/a n/a
2024-08-14 2024-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Put 33,700 0.00 3,480 11.00 n/a n/a n/a
2024-05-15 2024-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Put 33,700 3,136 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.