VivoPower PLC
DE ˙ DB ˙ GB00BD3VDH82
4,92 € ↓ -0,40 (-7,52%)
2026-06-04
AKTIENPREIS
SecurityDE:51J / VivoPower PLC
InstitutionSimplex Trading, Llc
Latest Disclosed Ownership4,163 shares
Latest Disclosed Value $ 9,574
Simplex Trading, Llc ownership in 51J / VivoPower PLC

On May 14, 2026 - Simplex Trading, Llc filed a 13F-HR form disclosing ownership of 4,163 shares of VivoPower PLC (DE:51J) valued at $8,826 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 2,489 shares of VivoPower PLC. This represents a change in shares of 67.26% during the quarter. The current value of the position is $20,482 USD.

Simplex Trading, Llc has a history of taking positions in derivatives of the underlying security (51J) 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:51J / VivoPower 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)
2026-05-14 2026-03-31 13F VIVOPOWER COM G9376R209 4,163 1,674 67.26 10 80.00 0.0000
2026-02-11 2025-12-31 13F VIVOPOWER INTERNATIONAL COM G9376R209 2,489 -3,264 -56.74 6 0.0000
2025-11-12 2025-09-30 13F VIVOPOWER INTERNATIONAL COM G9376R209 5,753 5,753 0 0.0000
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
(%)
2023-04-27 2023-03-31 13F MERIDIAN BIOSCIENCE CALL Call 0 -100.00 0 n/a n/a n/a
2023-02-02 2022-12-31 13F MERIDIAN BIOSCIENCE CALL Call 8,700 -67.54 0 -100.00 n/a n/a n/a
2022-11-04 2022-09-30 13F MERIDIAN BIOSCIENCE CALL Call 26,800 1,575.00 845 1,660.42 n/a n/a n/a
2022-08-03 2022-06-30 13F MERIDIAN BIOSCIENCE CALL Call 1,600 -78.38 48 -75.00 n/a n/a n/a
2022-05-02 2022-03-31 13F MERIDIAN BIOSCIENCE CALL Call 7,400 -60.43 192 -49.61 n/a n/a n/a
2022-02-23 2021-12-31 13F/A MERIDIAN BIOSCIENCE CALL Call 18,700 -31.50 381 -37.85 n/a n/a n/a
2022-02-04 2021-12-31 13F MERIDIAN BIOSCIENCE CALL Call 27,300 613 n/a n/a n/a
2021-10-28 2021-09-30 13F MERIDIAN BIOSCIENCE CALL Call 27,300 0.00 613 1.32 n/a n/a n/a
2021-08-12 2021-06-30 13F MERIDIAN BIOSCIENCE CALL Call 27,300 27,475.76 605 133.59 n/a n/a n/a
2021-04-26 2021-03-31 13F MERIDIAN BIOSCIENCE CALL Call 99 0.00 259 40.00 n/a n/a n/a
2021-02-02 2020-12-31 13F MERIDIAN BIOSCIENCE CALL Call 99 -88.67 185 -87.53 n/a n/a n/a
2020-10-14 2020-09-30 13F MERIDIAN BIOSCIENCE CALL Call 874 330.54 1,484 214.41 n/a n/a n/a
2020-07-13 2020-06-30 13F MERIDIAN BIOSCIENCE CALL Call 203 20.12 472 234.75 n/a n/a n/a
2020-04-29 2020-03-31 13F MERIDIAN BIOSCIENCE CALL Call 169 1,590.00 141 1,466.67 n/a n/a n/a
2020-02-05 2019-12-31 13F MERIDIAN BIOSCIENCE CALL Call 10 900.00 9 -93.62 n/a n/a n/a
2019-10-15 2019-09-30 13F MERIDIAN BIOSCIENCE CALL Call 1 -66.67 0 -100.00 n/a n/a n/a
2019-07-26 2019-06-30 13F MERIDIAN BIOSCIENCE CALL Call 3 200.00 3 200.00 n/a n/a n/a
2019-04-18 2019-03-31 13F MERIDIAN BIOSCIENCE CALL Call 1 0.00 1 0.00 n/a n/a n/a
2019-01-16 2018-12-31 13F MERIDIAN BIOSCIENCE CALL Call 1 -96.77 1 -97.83 n/a n/a n/a
2018-10-23 2018-09-30 13F MERIDIAN BIOSCIENCE CALL Call 31 -73.04 46 -74.73 n/a n/a n/a
2018-07-30 2018-06-30 13F MERIDIAN BIOSCIENCE CALL Call 115 721.43 182 295.65 n/a n/a n/a
2018-04-26 2018-03-31 13F MERIDIAN BIOSCIENCE CALL Call 14 -86.14 0 -100.00 n/a n/a n/a
2018-01-10 2017-12-31 13F MERIDIAN BIOSCIENCE CALL Call 101 1,920.00 0 n/a n/a n/a
2017-10-25 2017-09-30 13F MERIDIAN BIOSCIENCE CALL Call 5 -95.41 0 -100.00 n/a n/a n/a
2017-07-12 2017-06-30 13F MERIDIAN BIOSCIENCE CALL Call 109 0.93 2 100.00 n/a n/a n/a
2017-04-21 2017-03-31 13F MERIDIAN BIOSCIENCE CALL Call 108 0.93 1 0.00 n/a n/a n/a
2017-01-11 2016-12-31 13F MERIDIAN BIOSCIENCE CALL Call 107 -0.93 1 0.00 n/a n/a n/a
2016-10-07 2016-09-30 13F MERIDIAN BIOSCIENCE CALL Call 0 -100.00 0 -100.00 n/a n/a n/a
2016-07-18 2016-06-30 13F MERIDIAN BIOSCIENCE CALL Call 46 -71.43 0 -100.00 n/a n/a n/a
2016-04-14 2016-03-31 13F MERIDIAN BIOSCIENCE CALL Call 161 -3.59 17 -15.00 n/a n/a n/a
2016-01-20 2015-12-31 13F MERIDIAN BIOSCIENCE CALL Call 167 51.82 20 400.00 n/a n/a n/a
2015-10-08 2015-09-30 13F MERIDIAN BIOSCIENCE CALL Call 110 139.13 4 -80.00 n/a n/a n/a
2015-07-08 2015-06-30 13F MERIDIAN BIOSCIENCE CALL Call 46 -2.13 0 -100.00 n/a n/a n/a
2015-04-21 2015-03-31 13F MERIDIAN BIOSCIENCE CALL Call 47 1,075.00 3 n/a n/a n/a
2015-03-04 2014-12-31 13F MERIDIAN BIOSCIENCE CALL Call 4 0 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
(%)
2023-04-27 2023-03-31 13F MERIDIAN BIOSCIENCE PUT Put 0 -100.00 0 n/a n/a n/a
2023-02-02 2022-12-31 13F MERIDIAN BIOSCIENCE PUT Put 2,000 100.00 0 -100.00 n/a n/a n/a
2022-11-04 2022-09-30 13F MERIDIAN BIOSCIENCE PUT Put 1,000 66.67 31 72.22 n/a n/a n/a
2022-08-03 2022-06-30 13F MERIDIAN BIOSCIENCE PUT Put 600 -87.76 18 -85.83 n/a n/a n/a
2022-05-02 2022-03-31 13F MERIDIAN BIOSCIENCE PUT Put 4,900 11.36 127 42.70 n/a n/a n/a
2022-02-23 2021-12-31 13F/A MERIDIAN BIOSCIENCE PUT Put 4,400 -87.95 89 -89.13 n/a n/a n/a
2022-02-04 2021-12-31 13F MERIDIAN BIOSCIENCE PUT Put 36,500 819 n/a n/a n/a
2021-10-28 2021-09-30 13F MERIDIAN BIOSCIENCE PUT Put 36,500 0.00 819 1.24 n/a n/a n/a
2021-08-12 2021-06-30 13F MERIDIAN BIOSCIENCE PUT Put 36,500 28,194.57 809 139.35 n/a n/a n/a
2021-04-26 2021-03-31 13F MERIDIAN BIOSCIENCE PUT Put 129 706.25 338 1,065.52 n/a n/a n/a
2021-02-02 2020-12-31 13F MERIDIAN BIOSCIENCE PUT Put 16 -75.38 29 -73.64 n/a n/a n/a
2020-10-14 2020-09-30 13F MERIDIAN BIOSCIENCE PUT Put 65 22.64 110 -10.57 n/a n/a n/a
2020-07-13 2020-06-30 13F MERIDIAN BIOSCIENCE PUT Put 53 -29.33 123 95.24 n/a n/a n/a
2020-04-29 2020-03-31 13F MERIDIAN BIOSCIENCE PUT Put 75 1,400.00 63 1,475.00 n/a n/a n/a
2020-02-05 2019-12-31 13F MERIDIAN BIOSCIENCE PUT Put 5 -93.33 4 -93.65 n/a n/a n/a
2019-04-18 2019-03-31 13F MERIDIAN BIOSCIENCE PUT Put 0 -100.00 0 -100.00 n/a n/a n/a
2019-01-16 2018-12-31 13F MERIDIAN BIOSCIENCE PUT Put 1 1 n/a n/a n/a
2018-07-30 2018-06-30 13F MERIDIAN BIOSCIENCE PUT Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-04-26 2018-03-31 13F MERIDIAN BIOSCIENCE PUT Put 14 55.56 0 n/a n/a n/a
2018-01-10 2017-12-31 13F MERIDIAN BIOSCIENCE PUT Put 9 125.00 0 n/a n/a n/a
2017-10-25 2017-09-30 13F MERIDIAN BIOSCIENCE PUT Put 4 -60.00 0 n/a n/a n/a
2017-07-12 2017-06-30 13F MERIDIAN BIOSCIENCE PUT Put 10 -47.37 0 -100.00 n/a n/a n/a
2017-04-21 2017-03-31 13F MERIDIAN BIOSCIENCE PUT Put 19 -92.37 2 -75.00 n/a n/a n/a
2017-01-11 2016-12-31 13F MERIDIAN BIOSCIENCE PUT Put 249 -18.36 8 -42.86 n/a n/a n/a
2016-10-07 2016-09-30 13F MERIDIAN BIOSCIENCE PUT Put 305 131.06 14 75.00 n/a n/a n/a
2016-07-18 2016-06-30 13F MERIDIAN BIOSCIENCE PUT Put 132 -56.72 8 -42.86 n/a n/a n/a
2016-04-14 2016-03-31 13F MERIDIAN BIOSCIENCE PUT Put 0 -100.00 0 -100.00 n/a n/a n/a
2016-01-20 2015-12-31 13F MERIDIAN BIOSCIENCE PUT Put 5 -50.00 0 n/a n/a n/a
2015-10-08 2015-09-30 13F MERIDIAN BIOSCIENCE PUT Put 10 -50.00 0 -100.00 n/a n/a n/a
2015-07-08 2015-06-30 13F MERIDIAN BIOSCIENCE PUT Put 20 -4.76 1 -50.00 n/a n/a n/a
2015-04-21 2015-03-31 13F MERIDIAN BIOSCIENCE PUT Put 21 110.00 2 -50.00 n/a n/a n/a
2015-03-04 2014-12-31 13F MERIDIAN BIOSCIENCE PUT Put 10 4 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.