Seagate Technology Holdings plc
DE ˙ XTRA ˙ IE00BKVD2N49
38,91 € ↓ -0,56 (-1,41%)
2017-05-15
DEL PRIS
SecurityDE:STT / Seagate Technology Holdings plc
InstitutionVontobel Holding Ltd.
Latest Disclosed Ownership8,716 shares
Latest Disclosed Value $ 3,374,398
Vontobel Holding Ltd. ownership in STT / Seagate Technology Holdings plc

On May 8, 2026 - Vontobel Holding Ltd. filed a 13F-HR form disclosing ownership of 8,716 shares of Seagate Technology Holdings plc (DE:STT) valued at $3,374,398 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 6,391 shares of Seagate Technology Holdings plc. This represents a change in shares of 36.38% during the quarter. The current value of the position is $339,140 USD.

Vontobel Holding Ltd. 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 .

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)
2026-05-08 2026-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 8,716 2,325 36.38 3,374 89.87 0.0031
2026-02-13 2025-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 6,391 3,056 91.63 1,777 134.12 0.0056
2025-10-15 2025-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 3,335 -1,992 -37.39 760 0.40 0.0023
2025-07-23 2025-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 5,327 -27 -0.50 756 68.37 0.0024
2025-04-28 2025-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 5,354 264 5.19 450 2.28 0.0016
2025-01-30 2024-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 5,090 1,942 61.69 439 29.50 0.0015
2024-10-16 2024-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 3,148 -2,501 -44.27 340 -42.44 0.0011
2024-08-13 2024-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 5,649 -499 -8.12 590 1.90 0.0019
2024-05-10 2024-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 6,148 -981 -13.76 579 -6.17 0.0046
2024-06-04 2023-12-31 13F/A-1 SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 7,129 -1,224 -14.65 616 12.41 0.0052
2024-01-30 2023-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 14,258 -2,448 1,232 0.0062
2024-06-04 2023-09-30 13F/A-1 SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 8,353 0 0.00 549 5.59 0.0051
2023-10-11 2023-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 16,706 0 1,097 0.0061
2024-06-04 2023-06-30 13F/A-1 SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 8,353 4,372 109.82 520 102.73 0.0046
2023-07-24 2023-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 16,706 12,725 1,039 0.0055
2024-06-04 2023-03-31 13F/A-1 SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 3,981 3,981 257 0.0024
2023-04-12 2023-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 7,962 7,962 513 0.0029
2023-02-14 2022-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 0 -7,317 -100.00 0 -100.00
2022-11-04 2022-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 7,317 -534 -6.80 398 -29.06 0.0046
2022-07-27 2022-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 7,851 -10,683 -57.64 561 -66.86 0.0061
2022-05-13 2022-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 18,534 -1,499 -7.48 1,693 -25.71 0.0146
2022-02-14 2021-12-31 13F/A-1 SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 20,033 823 4.28 2,279 43.79 0.0189
2022-02-10 2021-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 19,210 0 1,585 0.0060
2021-10-29 2021-09-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 19,210 11,400 145.97 1,585 131.73 0.0140
2021-08-06 2021-06-30 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS G7997R103 7,810 7,810 684 0.0059
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
(%)
2026-05-08 2026-03-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Call 0 -100.00 0 -100.00 n/a n/a n/a
2026-02-13 2025-12-31 13F SEAGATE TECHNOLOGY HLDNGS PL ORD SHS Call 2,700 751 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.