Seagate Technology Holdings plc
DE ˙ XTRA ˙ IE00BKVD2N49
38,91 € ↓ -0,56 (-1,41%)
2017-05-15
DEL PRIS
SecurityDE:STT / Seagate Technology Holdings plc
InstitutionWalleye Capital LLC
Latest Disclosed Ownership137,428 shares
Latest Disclosed Value $ 53,838,793
Walleye Capital LLC ownership in STT / Seagate Technology Holdings plc

On May 13, 2026 - Walleye Capital LLC filed a 13F-HR/A form disclosing ownership of 137,428 shares of Seagate Technology Holdings plc (DE:STT) valued at $53,838,793 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 27,877 shares of Seagate Technology Holdings plc. This represents a change in shares of 392.98% during the quarter. The current value of the position is $5,347,323 USD.

Walleye Capital LLC 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 24,300 of underlying shares valued at $9,519,768 USD and put options representing 21,200 of underlying shares valued at $8,305,312 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)
2026-05-13 2026-03-31 13F/A-1 SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 137,428 109,551 392.98 53,839 601.29 0.2240
2026-05-08 2026-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 137,428 109,551 53,839 0.2238
2026-02-13 2025-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 27,877 22,977 468.92 7,677 564.10 0.0236
2025-11-14 2025-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 4,900 -194 -3.81 1,157 57.28 0.0043
2025-08-13 2025-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 5,094 -295 -5.47 735 60.83 0.0029
2025-05-14 2025-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 5,389 -75,642 -93.35 458 -93.46 0.0021
2025-02-13 2024-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 81,031 75,646 1,404.75 6,994 1,087.27 0.0171
2024-11-14 2024-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 5,385 -114,041 -95.49 590 -95.22 0.0012
2024-08-14 2024-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 119,426 46,286 63.28 12,333 81.23 0.0220
2024-05-15 2024-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 73,140 18,197 33.12 6,806 45.10 0.0121
2024-02-14 2023-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 54,943 1,348 2.52 4,690 32.71 0.0099
2023-11-21 2023-09-30 13F/A-1 SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 53,595 53,595 3,535 0.0090
2023-11-14 2023-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 53,595 53,595 3,535 0.0091
2023-05-15 2023-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 0 -21,472 -100.00 0 -100.00
2023-02-14 2022-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 21,472 -28,208 -56.78 1,130 -57.30 0.0206
2022-11-14 2022-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 49,680 49,680 2,644 0.0505
2019-11-14 2019-09-30 13F SEAGATE TECHNOLOGY SHS G7945M107 0 -1,384 -100.00 0 -100.00
2019-08-14 2019-06-30 13F SEAGATE TECHNOLOGY SHS G7945M107 1,384 1,384 65 0.0071
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
(%)
2026-05-13 2026-03-31 13F/A SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Call 24,300 -13.52 9,520 23.02 n/a n/a n/a
2026-05-08 2026-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Call 24,300 9,520 n/a n/a n/a
2026-02-13 2025-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Call 28,100 -6.33 7,738 9.28 n/a n/a n/a
2025-11-14 2025-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Call 30,000 -3.85 7,082 57.25 n/a n/a n/a
2025-08-13 2025-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Call 31,200 -18.75 4,503 38.04 n/a n/a n/a
2025-05-14 2025-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Call 38,400 -7.91 3,262 -9.36 n/a n/a n/a
2025-02-13 2024-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Call 41,700 -50.94 3,599 -61.34 n/a n/a n/a
2024-11-14 2024-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Call 85,000 2.53 9,310 8.75 n/a n/a n/a
2024-08-14 2024-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Call 82,900 55.53 8,561 72.64 n/a n/a n/a
2024-05-15 2024-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Call 53,300 147.91 4,960 170.25 n/a n/a n/a
2024-02-14 2023-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Call 21,500 -48.07 1,835 -32.78 n/a n/a n/a
2023-11-21 2023-09-30 13F/A SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Call 41,400 -50.77 2,730 -47.53 n/a n/a n/a
2023-11-14 2023-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Call 41,400 2,730 n/a n/a n/a
2023-08-14 2023-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Call 84,100 157.19 5,203 140.66 n/a n/a n/a
2023-05-15 2023-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Call 32,700 105.66 2,162 158.61 n/a n/a n/a
2023-02-14 2022-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Call 15,900 76.67 836 74.53 n/a n/a n/a
2022-11-14 2022-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Call 9,000 479 n/a n/a n/a
2020-02-14 2019-12-31 13F SEAGATE TECHNOLOGY SHS Call 0 -100.00 0 -100.00 n/a n/a n/a
2019-11-14 2019-09-30 13F SEAGATE TECHNOLOGY SHS Call 6,700 360 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
(%)
2026-05-13 2026-03-31 13F/A SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Put 21,200 -43.92 8,305 -20.21 n/a n/a n/a
2026-05-08 2026-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Put 21,200 8,305 n/a n/a n/a
2026-02-13 2025-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Put 37,800 -70.61 10,410 -65.71 n/a n/a n/a
2025-11-14 2025-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Put 128,600 396.53 30,357 712.12 n/a n/a n/a
2025-08-13 2025-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Put 25,900 -29.81 3,738 19.27 n/a n/a n/a
2025-05-14 2025-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Put 36,900 -62.39 3,135 -62.99 n/a n/a n/a
2025-02-13 2024-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Put 98,100 -66.18 8,467 -73.35 n/a n/a n/a
2024-11-14 2024-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Put 290,100 83.61 31,775 94.74 n/a n/a n/a
2024-08-14 2024-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Put 158,000 56.28 16,317 73.45 n/a n/a n/a
2024-05-15 2024-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Put 101,100 33.38 9,407 45.37 n/a n/a n/a
2024-02-14 2023-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Put 75,800 -2.45 6,471 26.29 n/a n/a n/a
2023-11-21 2023-09-30 13F/A SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Put 77,700 -50.13 5,124 -46.84 n/a n/a n/a
2023-11-14 2023-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Put 77,700 5,124 n/a n/a n/a
2023-08-14 2023-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Put 155,800 557.38 9,639 515.12 n/a n/a n/a
2023-05-15 2023-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Put 23,700 50.00 1,567 88.57 n/a n/a n/a
2023-02-14 2022-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Put 15,800 -65.35 831 -65.76 n/a n/a n/a
2022-11-14 2022-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Put 45,600 2,427 n/a n/a n/a
2020-02-14 2019-12-31 13F SEAGATE TECHNOLOGY SHS Put 0 -100.00 0 -100.00 n/a n/a n/a
2019-11-14 2019-09-30 13F SEAGATE TECHNOLOGY SHS Put 100 -99.51 5 -99.49 n/a n/a n/a
2019-08-14 2019-06-30 13F SEAGATE TECHNOLOGY SHS Put 20,600 971 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.