Nebius Group N.V.
US ˙ NasdaqGS ˙ NL0009805522

SecurityNBIS / Nebius Group N.V.
InstitutionAviva Plc
Latest Disclosed Ownership370,564 shares
Latest Disclosed Value $ 23,756,475
Aviva Plc reports 6.17% increase in ownership of NBIS / Nebius Group N.V.

On May 14, 2026 - Aviva Plc filed a 13F-HR form disclosing ownership of 370,564 shares of Nebius Group N.V. (US:NBIS) valued at $38,449,721 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 349,043 shares of Nebius Group N.V.. This represents a change in shares of 6.17% during the quarter. The current value of the position is $96,224,354 USD.

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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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 NEBIUS GROUP N.V. SHS CLASS A N97284108 370,564 21,521 6.17 23,756 36.82 0.0399
2026-02-12 2025-12-31 13F NEBIUS GROUP N.V. SHS CLASS A N97284108 349,043 207,435 146.49 17,363 0.0293
2025-11-13 2025-09-30 13F NEBIUS GROUP N.V. SHS CLASS A N97284108 141,608 0 0.00 0 0.0000
2025-08-07 2025-06-30 13F NEBIUS GROUP N.V. SHS CLASS A N97284108 141,608 0 0.00 0 0.0000
2025-05-15 2025-03-31 13F NEBIUS GROUP N.V. SHS CLASS A N97284108 141,608 0 0.00 0 0.0000
2025-02-13 2024-12-31 13F NEBIUS GROUP N.V. SHS CLASS A N97284108 141,608 -97,035 -40.66 0 -100.00
2024-11-14 2024-09-30 13F NEBIUS GROUP N.V. SHS CLASS A N97284108 238,643 0 0.00 1,838 0.00 0.0048
2024-08-02 2024-06-30 13F YANDEX N V SHS CLASS A N97284108 238,643 0 0.00 1,838 0.00 0.0051
2024-05-14 2024-03-31 13F YANDEX N V SHS CLASS A N97284108 238,643 0 0.00 1,838 0.00 0.0061
2024-02-09 2023-12-31 13F YANDEX N V SHS CLASS A N97284108 238,643 0 0.00 1,838 0.00 0.0066
2023-11-13 2023-09-30 13F YANDEX N V SHS CLASS A N97284108 238,643 0 0.00 1,838 0.00 0.0077
2023-08-10 2023-06-30 13F YANDEX N V SHS CLASS A N97284108 238,643 0 0.00 1,838 0.00 0.0075
2023-05-12 2023-03-31 13F YANDEX N V SHS CLASS A N97284108 238,643 0 0.00 1,838 0.00 0.0083
2023-02-14 2022-12-31 13F/A-2 YANDEX N V SHS CLASS A N97284108 238,643 0 0.00 1,838 -0.05 0.0090
2023-02-10 2022-12-31 13F/A-1 YANDEX N V SHS CLASS A N97284108 238,643 0 15,992 0.0763
2023-02-09 2022-12-31 13F YANDEX N V SHS CLASS A N97284108 238,643 0 2 0.0088
2022-11-14 2022-09-30 13F YANDEX N V SHS CLASS A N97284108 238,643 0 0.00 1,838 -69.31 0.0106
2022-08-04 2022-06-30 13F YANDEX N V SHS CLASS A N97284108 238,643 0 0.00 5,989 4.56 0.0319
2022-05-13 2022-03-31 13F YANDEX N V SHS CLASS A N97284108 238,643 3,756 1.60 5,728 -59.57 0.0286
2022-02-10 2021-12-31 13F YANDEX N V SHS CLASS A N97284108 234,887 27,372 13.19 14,166 -14.44 0.0594
2021-11-12 2021-09-30 13F YANDEX N V SHS CLASS A N97284108 207,515 13,669 7.05 16,556 20.50 0.0738
2021-08-10 2021-06-30 13F YANDEX N V SHS CLASS A N97284108 193,846 471 0.24 13,739 10.19 0.0603
2021-05-13 2021-03-31 13F YANDEX N V SHS CLASS A N97284108 193,375 -3,053 -1.55 12,468 -8.59 0.0609
2021-02-10 2020-12-31 13F YANDEX N V SHS CLASS A N97284108 196,428 519 0.26 13,640 7.37 0.0709
2020-11-12 2020-09-30 13F YANDEX N V SHS CLASS A N97284108 195,909 100,292 104.89 12,704 165.61 0.0749
2020-08-13 2020-06-30 13F/A-1 YANDEX N V SHS CLASS A N97284108 95,617 -6,657 -6.51 4,783 37.36 0.0298
2020-08-13 2020-06-30 13F YANDEX N V SHS CLASS A N97284108 95,617 -6,657 4,783 14,480.1924
2020-05-14 2020-03-31 13F YANDEX N V SHS CLASS A N97284108 102,274 254 0.25 3,482 -21.52 0.0255
2020-02-10 2019-12-31 13F YANDEX N V SHS CLASS A N97284108 102,020 4,992 5.14 4,437 30.62 0.0269
2019-11-12 2019-09-30 13F YANDEX N V SHS CLASS A N97284108 97,028 794 0.83 3,397 -7.11 0.0230
2019-07-30 2019-06-30 13F YANDEX N V SHS CLASS A N97284108 96,234 -2,337 -2.37 3,657 8.04 0.0251
2019-05-14 2019-03-31 13F YANDEX N V SHS CLASS A N97284108 98,571 -904 -0.91 3,385 24.40 0.0227
2019-02-12 2018-12-31 13F YANDEX N V SHS CLASS A N97284108 99,475 -28,740 -22.42 2,721 -35.48 0.0203
2018-11-13 2018-09-30 13F YANDEX N V SHS CLASS A N97284108 128,215 -3,830 -2.90 4,217 -11.03 0.0231
2018-08-01 2018-06-30 13F YANDEX N V SHS CLASS A N97284108 132,045 2,447 1.89 4,740 -7.30 0.0280
2018-05-14 2018-03-31 13F YANDEX N V SHS CLASS A N97284108 129,598 -10,305 -7.37 5,113 11.59 0.0313
2018-02-13 2017-12-31 13F YANDEX N V SHS CLASS A N97284108 139,903 -18,216 -11.52 4,582 -12.09 0.0259
2017-11-13 2017-09-30 13F YANDEX N V SHS CLASS A N97284108 158,119 3,920 2.54 5,212 28.82 0.0280
2017-08-07 2017-06-30 13F YANDEX N V SHS CLASS A N97284108 154,199 300 0.19 4,046 19.81 0.0226
2017-05-15 2017-03-31 13F YANDEX N V SHS CLASS A N97284108 153,899 -5,516 -3.46 3,377 5.17 0.0193
2017-02-13 2016-12-31 13F YANDEX N V SHS CLASS A N97284108 159,415 8,787 5.83 3,211 1.26 0.0192
2016-11-14 2016-09-30 13F YANDEX N V SHS CLASS A N97284108 150,628 7,586 5.30 3,171 1.50 0.0198
2016-08-05 2016-06-30 13F YANDEX N V SHS CLASS A N97284108 143,042 21,918 18.10 3,124 68.32 0.0214
2016-05-12 2016-03-31 13F YANDEX N V SHS CLASS A N97284108 121,124 1,378 1.15 1,856 -1.38 0.0138
2016-02-11 2015-12-31 13F YANDEX N V SHS CLASS A N97284108 119,746 1,854 1.57 1,882 48.77 0.0143
2015-11-12 2015-09-30 13F YANDEX N V SHS CLASS A N97284108 117,892 -3,550 -2.92 1,265 -31.55 0.0105
2015-08-06 2015-06-30 13F YANDEX N V SHS CLASS A N97284108 121,442 -860 -0.70 1,848 -0.38 0.0131
2015-05-14 2015-03-31 13F YANDEX N V SHS CLASS A N97284108 122,302 122,302 0.00 1,855 0.0127
2015-02-05 2014-12-31 13F/A-1 YANDEX N V SHS CLASS A N97284108 0 -93,356 -100.00 0 -100.00
2014-11-13 2014-09-30 13F YANDEX N V SHS CLASS A N97284108 93,356 -190 -0.20 2,595 -22.17 0.0205
2014-08-13 2014-06-30 13F YANDEX N V SHS CLASS A N97284108 93,546 4,520 5.08 3,334 24.03 0.0255
2014-05-14 2014-03-31 13F YANDEX N V SHS CLASS A N97284108 89,026 89,026 2,688 0.0218
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.